4 # Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012 Google Inc.
6 # This program is free software; you can redistribute it and/or modify
7 # it under the terms of the GNU General Public License as published by
8 # the Free Software Foundation; either version 2 of the License, or
9 # (at your option) any later version.
11 # This program is distributed in the hope that it will be useful, but
12 # WITHOUT ANY WARRANTY; without even the implied warranty of
13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 # General Public License for more details.
16 # You should have received a copy of the GNU General Public License
17 # along with this program; if not, write to the Free Software
18 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
22 """Module implementing the master-side code."""
24 # pylint: disable=W0201,C0302
26 # W0201 since most LU attributes are defined in CheckPrereq or similar
29 # C0302: since we have waaaay to many lines in this module
45 from ganeti import ssh
46 from ganeti import utils
47 from ganeti import errors
48 from ganeti import hypervisor
49 from ganeti import locking
50 from ganeti import constants
51 from ganeti import objects
52 from ganeti import serializer
53 from ganeti import ssconf
54 from ganeti import uidpool
55 from ganeti import compat
56 from ganeti import masterd
57 from ganeti import netutils
58 from ganeti import query
59 from ganeti import qlang
60 from ganeti import opcodes
63 import ganeti.masterd.instance # pylint: disable=W0611
67 """Data container for LU results with jobs.
69 Instances of this class returned from L{LogicalUnit.Exec} will be recognized
70 by L{mcpu.Processor._ProcessResult}. The latter will then submit the jobs
71 contained in the C{jobs} attribute and include the job IDs in the opcode
75 def __init__(self, jobs, **kwargs):
76 """Initializes this class.
78 Additional return values can be specified as keyword arguments.
80 @type jobs: list of lists of L{opcode.OpCode}
81 @param jobs: A list of lists of opcode objects
88 class LogicalUnit(object):
89 """Logical Unit base class.
91 Subclasses must follow these rules:
92 - implement ExpandNames
93 - implement CheckPrereq (except when tasklets are used)
94 - implement Exec (except when tasklets are used)
95 - implement BuildHooksEnv
96 - implement BuildHooksNodes
97 - redefine HPATH and HTYPE
98 - optionally redefine their run requirements:
99 REQ_BGL: the LU needs to hold the Big Ganeti Lock exclusively
101 Note that all commands require root permissions.
103 @ivar dry_run_result: the value (if any) that will be returned to the caller
104 in dry-run mode (signalled by opcode dry_run parameter)
111 def __init__(self, processor, op, context, rpc):
112 """Constructor for LogicalUnit.
114 This needs to be overridden in derived classes in order to check op
118 self.proc = processor
120 self.cfg = context.cfg
121 self.glm = context.glm
123 self.owned_locks = context.glm.list_owned
124 self.context = context
126 # Dicts used to declare locking needs to mcpu
127 self.needed_locks = None
128 self.share_locks = dict.fromkeys(locking.LEVELS, 0)
130 self.remove_locks = {}
131 # Used to force good behavior when calling helper functions
132 self.recalculate_locks = {}
134 self.Log = processor.Log # pylint: disable=C0103
135 self.LogWarning = processor.LogWarning # pylint: disable=C0103
136 self.LogInfo = processor.LogInfo # pylint: disable=C0103
137 self.LogStep = processor.LogStep # pylint: disable=C0103
138 # support for dry-run
139 self.dry_run_result = None
140 # support for generic debug attribute
141 if (not hasattr(self.op, "debug_level") or
142 not isinstance(self.op.debug_level, int)):
143 self.op.debug_level = 0
148 # Validate opcode parameters and set defaults
149 self.op.Validate(True)
151 self.CheckArguments()
153 def CheckArguments(self):
154 """Check syntactic validity for the opcode arguments.
156 This method is for doing a simple syntactic check and ensure
157 validity of opcode parameters, without any cluster-related
158 checks. While the same can be accomplished in ExpandNames and/or
159 CheckPrereq, doing these separate is better because:
161 - ExpandNames is left as as purely a lock-related function
162 - CheckPrereq is run after we have acquired locks (and possible
165 The function is allowed to change the self.op attribute so that
166 later methods can no longer worry about missing parameters.
171 def ExpandNames(self):
172 """Expand names for this LU.
174 This method is called before starting to execute the opcode, and it should
175 update all the parameters of the opcode to their canonical form (e.g. a
176 short node name must be fully expanded after this method has successfully
177 completed). This way locking, hooks, logging, etc. can work correctly.
179 LUs which implement this method must also populate the self.needed_locks
180 member, as a dict with lock levels as keys, and a list of needed lock names
183 - use an empty dict if you don't need any lock
184 - if you don't need any lock at a particular level omit that level
185 - don't put anything for the BGL level
186 - if you want all locks at a level use locking.ALL_SET as a value
188 If you need to share locks (rather than acquire them exclusively) at one
189 level you can modify self.share_locks, setting a true value (usually 1) for
190 that level. By default locks are not shared.
192 This function can also define a list of tasklets, which then will be
193 executed in order instead of the usual LU-level CheckPrereq and Exec
194 functions, if those are not defined by the LU.
198 # Acquire all nodes and one instance
199 self.needed_locks = {
200 locking.LEVEL_NODE: locking.ALL_SET,
201 locking.LEVEL_INSTANCE: ['instance1.example.com'],
203 # Acquire just two nodes
204 self.needed_locks = {
205 locking.LEVEL_NODE: ['node1.example.com', 'node2.example.com'],
208 self.needed_locks = {} # No, you can't leave it to the default value None
211 # The implementation of this method is mandatory only if the new LU is
212 # concurrent, so that old LUs don't need to be changed all at the same
215 self.needed_locks = {} # Exclusive LUs don't need locks.
217 raise NotImplementedError
219 def DeclareLocks(self, level):
220 """Declare LU locking needs for a level
222 While most LUs can just declare their locking needs at ExpandNames time,
223 sometimes there's the need to calculate some locks after having acquired
224 the ones before. This function is called just before acquiring locks at a
225 particular level, but after acquiring the ones at lower levels, and permits
226 such calculations. It can be used to modify self.needed_locks, and by
227 default it does nothing.
229 This function is only called if you have something already set in
230 self.needed_locks for the level.
232 @param level: Locking level which is going to be locked
233 @type level: member of ganeti.locking.LEVELS
237 def CheckPrereq(self):
238 """Check prerequisites for this LU.
240 This method should check that the prerequisites for the execution
241 of this LU are fulfilled. It can do internode communication, but
242 it should be idempotent - no cluster or system changes are
245 The method should raise errors.OpPrereqError in case something is
246 not fulfilled. Its return value is ignored.
248 This method should also update all the parameters of the opcode to
249 their canonical form if it hasn't been done by ExpandNames before.
252 if self.tasklets is not None:
253 for (idx, tl) in enumerate(self.tasklets):
254 logging.debug("Checking prerequisites for tasklet %s/%s",
255 idx + 1, len(self.tasklets))
260 def Exec(self, feedback_fn):
263 This method should implement the actual work. It should raise
264 errors.OpExecError for failures that are somewhat dealt with in
268 if self.tasklets is not None:
269 for (idx, tl) in enumerate(self.tasklets):
270 logging.debug("Executing tasklet %s/%s", idx + 1, len(self.tasklets))
273 raise NotImplementedError
275 def BuildHooksEnv(self):
276 """Build hooks environment for this LU.
279 @return: Dictionary containing the environment that will be used for
280 running the hooks for this LU. The keys of the dict must not be prefixed
281 with "GANETI_"--that'll be added by the hooks runner. The hooks runner
282 will extend the environment with additional variables. If no environment
283 should be defined, an empty dictionary should be returned (not C{None}).
284 @note: If the C{HPATH} attribute of the LU class is C{None}, this function
288 raise NotImplementedError
290 def BuildHooksNodes(self):
291 """Build list of nodes to run LU's hooks.
293 @rtype: tuple; (list, list)
294 @return: Tuple containing a list of node names on which the hook
295 should run before the execution and a list of node names on which the
296 hook should run after the execution. No nodes should be returned as an
297 empty list (and not None).
298 @note: If the C{HPATH} attribute of the LU class is C{None}, this function
302 raise NotImplementedError
304 def HooksCallBack(self, phase, hook_results, feedback_fn, lu_result):
305 """Notify the LU about the results of its hooks.
307 This method is called every time a hooks phase is executed, and notifies
308 the Logical Unit about the hooks' result. The LU can then use it to alter
309 its result based on the hooks. By default the method does nothing and the
310 previous result is passed back unchanged but any LU can define it if it
311 wants to use the local cluster hook-scripts somehow.
313 @param phase: one of L{constants.HOOKS_PHASE_POST} or
314 L{constants.HOOKS_PHASE_PRE}; it denotes the hooks phase
315 @param hook_results: the results of the multi-node hooks rpc call
316 @param feedback_fn: function used send feedback back to the caller
317 @param lu_result: the previous Exec result this LU had, or None
319 @return: the new Exec result, based on the previous result
323 # API must be kept, thus we ignore the unused argument and could
324 # be a function warnings
325 # pylint: disable=W0613,R0201
328 def _ExpandAndLockInstance(self):
329 """Helper function to expand and lock an instance.
331 Many LUs that work on an instance take its name in self.op.instance_name
332 and need to expand it and then declare the expanded name for locking. This
333 function does it, and then updates self.op.instance_name to the expanded
334 name. It also initializes needed_locks as a dict, if this hasn't been done
338 if self.needed_locks is None:
339 self.needed_locks = {}
341 assert locking.LEVEL_INSTANCE not in self.needed_locks, \
342 "_ExpandAndLockInstance called with instance-level locks set"
343 self.op.instance_name = _ExpandInstanceName(self.cfg,
344 self.op.instance_name)
345 self.needed_locks[locking.LEVEL_INSTANCE] = self.op.instance_name
347 def _LockInstancesNodes(self, primary_only=False):
348 """Helper function to declare instances' nodes for locking.
350 This function should be called after locking one or more instances to lock
351 their nodes. Its effect is populating self.needed_locks[locking.LEVEL_NODE]
352 with all primary or secondary nodes for instances already locked and
353 present in self.needed_locks[locking.LEVEL_INSTANCE].
355 It should be called from DeclareLocks, and for safety only works if
356 self.recalculate_locks[locking.LEVEL_NODE] is set.
358 In the future it may grow parameters to just lock some instance's nodes, or
359 to just lock primaries or secondary nodes, if needed.
361 If should be called in DeclareLocks in a way similar to::
363 if level == locking.LEVEL_NODE:
364 self._LockInstancesNodes()
366 @type primary_only: boolean
367 @param primary_only: only lock primary nodes of locked instances
370 assert locking.LEVEL_NODE in self.recalculate_locks, \
371 "_LockInstancesNodes helper function called with no nodes to recalculate"
373 # TODO: check if we're really been called with the instance locks held
375 # For now we'll replace self.needed_locks[locking.LEVEL_NODE], but in the
376 # future we might want to have different behaviors depending on the value
377 # of self.recalculate_locks[locking.LEVEL_NODE]
379 locked_i = self.owned_locks(locking.LEVEL_INSTANCE)
380 for _, instance in self.cfg.GetMultiInstanceInfo(locked_i):
381 wanted_nodes.append(instance.primary_node)
383 wanted_nodes.extend(instance.secondary_nodes)
385 if self.recalculate_locks[locking.LEVEL_NODE] == constants.LOCKS_REPLACE:
386 self.needed_locks[locking.LEVEL_NODE] = wanted_nodes
387 elif self.recalculate_locks[locking.LEVEL_NODE] == constants.LOCKS_APPEND:
388 self.needed_locks[locking.LEVEL_NODE].extend(wanted_nodes)
390 del self.recalculate_locks[locking.LEVEL_NODE]
393 class NoHooksLU(LogicalUnit): # pylint: disable=W0223
394 """Simple LU which runs no hooks.
396 This LU is intended as a parent for other LogicalUnits which will
397 run no hooks, in order to reduce duplicate code.
403 def BuildHooksEnv(self):
404 """Empty BuildHooksEnv for NoHooksLu.
406 This just raises an error.
409 raise AssertionError("BuildHooksEnv called for NoHooksLUs")
411 def BuildHooksNodes(self):
412 """Empty BuildHooksNodes for NoHooksLU.
415 raise AssertionError("BuildHooksNodes called for NoHooksLU")
419 """Tasklet base class.
421 Tasklets are subcomponents for LUs. LUs can consist entirely of tasklets or
422 they can mix legacy code with tasklets. Locking needs to be done in the LU,
423 tasklets know nothing about locks.
425 Subclasses must follow these rules:
426 - Implement CheckPrereq
430 def __init__(self, lu):
437 def CheckPrereq(self):
438 """Check prerequisites for this tasklets.
440 This method should check whether the prerequisites for the execution of
441 this tasklet are fulfilled. It can do internode communication, but it
442 should be idempotent - no cluster or system changes are allowed.
444 The method should raise errors.OpPrereqError in case something is not
445 fulfilled. Its return value is ignored.
447 This method should also update all parameters to their canonical form if it
448 hasn't been done before.
453 def Exec(self, feedback_fn):
454 """Execute the tasklet.
456 This method should implement the actual work. It should raise
457 errors.OpExecError for failures that are somewhat dealt with in code, or
461 raise NotImplementedError
465 """Base for query utility classes.
468 #: Attribute holding field definitions
471 def __init__(self, filter_, fields, use_locking):
472 """Initializes this class.
475 self.use_locking = use_locking
477 self.query = query.Query(self.FIELDS, fields, filter_=filter_,
479 self.requested_data = self.query.RequestedData()
480 self.names = self.query.RequestedNames()
482 # Sort only if no names were requested
483 self.sort_by_name = not self.names
485 self.do_locking = None
488 def _GetNames(self, lu, all_names, lock_level):
489 """Helper function to determine names asked for in the query.
493 names = lu.owned_locks(lock_level)
497 if self.wanted == locking.ALL_SET:
498 assert not self.names
499 # caller didn't specify names, so ordering is not important
500 return utils.NiceSort(names)
502 # caller specified names and we must keep the same order
504 assert not self.do_locking or lu.glm.is_owned(lock_level)
506 missing = set(self.wanted).difference(names)
508 raise errors.OpExecError("Some items were removed before retrieving"
509 " their data: %s" % missing)
511 # Return expanded names
514 def ExpandNames(self, lu):
515 """Expand names for this query.
517 See L{LogicalUnit.ExpandNames}.
520 raise NotImplementedError()
522 def DeclareLocks(self, lu, level):
523 """Declare locks for this query.
525 See L{LogicalUnit.DeclareLocks}.
528 raise NotImplementedError()
530 def _GetQueryData(self, lu):
531 """Collects all data for this query.
533 @return: Query data object
536 raise NotImplementedError()
538 def NewStyleQuery(self, lu):
539 """Collect data and execute query.
542 return query.GetQueryResponse(self.query, self._GetQueryData(lu),
543 sort_by_name=self.sort_by_name)
545 def OldStyleQuery(self, lu):
546 """Collect data and execute query.
549 return self.query.OldStyleQuery(self._GetQueryData(lu),
550 sort_by_name=self.sort_by_name)
554 """Returns a dict declaring all lock levels shared.
557 return dict.fromkeys(locking.LEVELS, 1)
560 def _CheckInstanceNodeGroups(cfg, instance_name, owned_groups):
561 """Checks if the owned node groups are still correct for an instance.
563 @type cfg: L{config.ConfigWriter}
564 @param cfg: The cluster configuration
565 @type instance_name: string
566 @param instance_name: Instance name
567 @type owned_groups: set or frozenset
568 @param owned_groups: List of currently owned node groups
571 inst_groups = cfg.GetInstanceNodeGroups(instance_name)
573 if not owned_groups.issuperset(inst_groups):
574 raise errors.OpPrereqError("Instance %s's node groups changed since"
575 " locks were acquired, current groups are"
576 " are '%s', owning groups '%s'; retry the"
579 utils.CommaJoin(inst_groups),
580 utils.CommaJoin(owned_groups)),
586 def _CheckNodeGroupInstances(cfg, group_uuid, owned_instances):
587 """Checks if the instances in a node group are still correct.
589 @type cfg: L{config.ConfigWriter}
590 @param cfg: The cluster configuration
591 @type group_uuid: string
592 @param group_uuid: Node group UUID
593 @type owned_instances: set or frozenset
594 @param owned_instances: List of currently owned instances
597 wanted_instances = cfg.GetNodeGroupInstances(group_uuid)
598 if owned_instances != wanted_instances:
599 raise errors.OpPrereqError("Instances in node group '%s' changed since"
600 " locks were acquired, wanted '%s', have '%s';"
601 " retry the operation" %
603 utils.CommaJoin(wanted_instances),
604 utils.CommaJoin(owned_instances)),
607 return wanted_instances
610 def _SupportsOob(cfg, node):
611 """Tells if node supports OOB.
613 @type cfg: L{config.ConfigWriter}
614 @param cfg: The cluster configuration
615 @type node: L{objects.Node}
616 @param node: The node
617 @return: The OOB script if supported or an empty string otherwise
620 return cfg.GetNdParams(node)[constants.ND_OOB_PROGRAM]
623 def _GetWantedNodes(lu, nodes):
624 """Returns list of checked and expanded node names.
626 @type lu: L{LogicalUnit}
627 @param lu: the logical unit on whose behalf we execute
629 @param nodes: list of node names or None for all nodes
631 @return: the list of nodes, sorted
632 @raise errors.ProgrammerError: if the nodes parameter is wrong type
636 return [_ExpandNodeName(lu.cfg, name) for name in nodes]
638 return utils.NiceSort(lu.cfg.GetNodeList())
641 def _GetWantedInstances(lu, instances):
642 """Returns list of checked and expanded instance names.
644 @type lu: L{LogicalUnit}
645 @param lu: the logical unit on whose behalf we execute
646 @type instances: list
647 @param instances: list of instance names or None for all instances
649 @return: the list of instances, sorted
650 @raise errors.OpPrereqError: if the instances parameter is wrong type
651 @raise errors.OpPrereqError: if any of the passed instances is not found
655 wanted = [_ExpandInstanceName(lu.cfg, name) for name in instances]
657 wanted = utils.NiceSort(lu.cfg.GetInstanceList())
661 def _GetUpdatedParams(old_params, update_dict,
662 use_default=True, use_none=False):
663 """Return the new version of a parameter dictionary.
665 @type old_params: dict
666 @param old_params: old parameters
667 @type update_dict: dict
668 @param update_dict: dict containing new parameter values, or
669 constants.VALUE_DEFAULT to reset the parameter to its default
671 @param use_default: boolean
672 @type use_default: whether to recognise L{constants.VALUE_DEFAULT}
673 values as 'to be deleted' values
674 @param use_none: boolean
675 @type use_none: whether to recognise C{None} values as 'to be
678 @return: the new parameter dictionary
681 params_copy = copy.deepcopy(old_params)
682 for key, val in update_dict.iteritems():
683 if ((use_default and val == constants.VALUE_DEFAULT) or
684 (use_none and val is None)):
690 params_copy[key] = val
694 def _ReleaseLocks(lu, level, names=None, keep=None):
695 """Releases locks owned by an LU.
697 @type lu: L{LogicalUnit}
698 @param level: Lock level
699 @type names: list or None
700 @param names: Names of locks to release
701 @type keep: list or None
702 @param keep: Names of locks to retain
705 assert not (keep is not None and names is not None), \
706 "Only one of the 'names' and the 'keep' parameters can be given"
708 if names is not None:
709 should_release = names.__contains__
711 should_release = lambda name: name not in keep
713 should_release = None
719 # Determine which locks to release
720 for name in lu.owned_locks(level):
721 if should_release(name):
726 assert len(lu.owned_locks(level)) == (len(retain) + len(release))
728 # Release just some locks
729 lu.glm.release(level, names=release)
731 assert frozenset(lu.owned_locks(level)) == frozenset(retain)
734 lu.glm.release(level)
736 assert not lu.glm.is_owned(level), "No locks should be owned"
739 def _MapInstanceDisksToNodes(instances):
740 """Creates a map from (node, volume) to instance name.
742 @type instances: list of L{objects.Instance}
743 @rtype: dict; tuple of (node name, volume name) as key, instance name as value
746 return dict(((node, vol), inst.name)
747 for inst in instances
748 for (node, vols) in inst.MapLVsByNode().items()
752 def _RunPostHook(lu, node_name):
753 """Runs the post-hook for an opcode on a single node.
756 hm = lu.proc.hmclass(lu.rpc.call_hooks_runner, lu)
758 hm.RunPhase(constants.HOOKS_PHASE_POST, nodes=[node_name])
760 # pylint: disable=W0702
761 lu.LogWarning("Errors occurred running hooks on %s" % node_name)
764 def _CheckOutputFields(static, dynamic, selected):
765 """Checks whether all selected fields are valid.
767 @type static: L{utils.FieldSet}
768 @param static: static fields set
769 @type dynamic: L{utils.FieldSet}
770 @param dynamic: dynamic fields set
777 delta = f.NonMatching(selected)
779 raise errors.OpPrereqError("Unknown output fields selected: %s"
780 % ",".join(delta), errors.ECODE_INVAL)
783 def _CheckGlobalHvParams(params):
784 """Validates that given hypervisor params are not global ones.
786 This will ensure that instances don't get customised versions of
790 used_globals = constants.HVC_GLOBALS.intersection(params)
792 msg = ("The following hypervisor parameters are global and cannot"
793 " be customized at instance level, please modify them at"
794 " cluster level: %s" % utils.CommaJoin(used_globals))
795 raise errors.OpPrereqError(msg, errors.ECODE_INVAL)
798 def _CheckNodeOnline(lu, node, msg=None):
799 """Ensure that a given node is online.
801 @param lu: the LU on behalf of which we make the check
802 @param node: the node to check
803 @param msg: if passed, should be a message to replace the default one
804 @raise errors.OpPrereqError: if the node is offline
808 msg = "Can't use offline node"
809 if lu.cfg.GetNodeInfo(node).offline:
810 raise errors.OpPrereqError("%s: %s" % (msg, node), errors.ECODE_STATE)
813 def _CheckNodeNotDrained(lu, node):
814 """Ensure that a given node is not drained.
816 @param lu: the LU on behalf of which we make the check
817 @param node: the node to check
818 @raise errors.OpPrereqError: if the node is drained
821 if lu.cfg.GetNodeInfo(node).drained:
822 raise errors.OpPrereqError("Can't use drained node %s" % node,
826 def _CheckNodeVmCapable(lu, node):
827 """Ensure that a given node is vm capable.
829 @param lu: the LU on behalf of which we make the check
830 @param node: the node to check
831 @raise errors.OpPrereqError: if the node is not vm capable
834 if not lu.cfg.GetNodeInfo(node).vm_capable:
835 raise errors.OpPrereqError("Can't use non-vm_capable node %s" % node,
839 def _CheckNodeHasOS(lu, node, os_name, force_variant):
840 """Ensure that a node supports a given OS.
842 @param lu: the LU on behalf of which we make the check
843 @param node: the node to check
844 @param os_name: the OS to query about
845 @param force_variant: whether to ignore variant errors
846 @raise errors.OpPrereqError: if the node is not supporting the OS
849 result = lu.rpc.call_os_get(node, os_name)
850 result.Raise("OS '%s' not in supported OS list for node %s" %
852 prereq=True, ecode=errors.ECODE_INVAL)
853 if not force_variant:
854 _CheckOSVariant(result.payload, os_name)
857 def _CheckNodeHasSecondaryIP(lu, node, secondary_ip, prereq):
858 """Ensure that a node has the given secondary ip.
860 @type lu: L{LogicalUnit}
861 @param lu: the LU on behalf of which we make the check
863 @param node: the node to check
864 @type secondary_ip: string
865 @param secondary_ip: the ip to check
866 @type prereq: boolean
867 @param prereq: whether to throw a prerequisite or an execute error
868 @raise errors.OpPrereqError: if the node doesn't have the ip, and prereq=True
869 @raise errors.OpExecError: if the node doesn't have the ip, and prereq=False
872 result = lu.rpc.call_node_has_ip_address(node, secondary_ip)
873 result.Raise("Failure checking secondary ip on node %s" % node,
874 prereq=prereq, ecode=errors.ECODE_ENVIRON)
875 if not result.payload:
876 msg = ("Node claims it doesn't have the secondary ip you gave (%s),"
877 " please fix and re-run this command" % secondary_ip)
879 raise errors.OpPrereqError(msg, errors.ECODE_ENVIRON)
881 raise errors.OpExecError(msg)
884 def _GetClusterDomainSecret():
885 """Reads the cluster domain secret.
888 return utils.ReadOneLineFile(constants.CLUSTER_DOMAIN_SECRET_FILE,
892 def _CheckInstanceDown(lu, instance, reason):
893 """Ensure that an instance is not running."""
894 if instance.admin_up:
895 raise errors.OpPrereqError("Instance %s is marked to be up, %s" %
896 (instance.name, reason), errors.ECODE_STATE)
898 pnode = instance.primary_node
899 ins_l = lu.rpc.call_instance_list([pnode], [instance.hypervisor])[pnode]
900 ins_l.Raise("Can't contact node %s for instance information" % pnode,
901 prereq=True, ecode=errors.ECODE_ENVIRON)
903 if instance.name in ins_l.payload:
904 raise errors.OpPrereqError("Instance %s is running, %s" %
905 (instance.name, reason), errors.ECODE_STATE)
908 def _ExpandItemName(fn, name, kind):
909 """Expand an item name.
911 @param fn: the function to use for expansion
912 @param name: requested item name
913 @param kind: text description ('Node' or 'Instance')
914 @return: the resolved (full) name
915 @raise errors.OpPrereqError: if the item is not found
919 if full_name is None:
920 raise errors.OpPrereqError("%s '%s' not known" % (kind, name),
925 def _ExpandNodeName(cfg, name):
926 """Wrapper over L{_ExpandItemName} for nodes."""
927 return _ExpandItemName(cfg.ExpandNodeName, name, "Node")
930 def _ExpandInstanceName(cfg, name):
931 """Wrapper over L{_ExpandItemName} for instance."""
932 return _ExpandItemName(cfg.ExpandInstanceName, name, "Instance")
935 def _BuildInstanceHookEnv(name, primary_node, secondary_nodes, os_type, status,
936 memory, vcpus, nics, disk_template, disks,
937 bep, hvp, hypervisor_name, tags):
938 """Builds instance related env variables for hooks
940 This builds the hook environment from individual variables.
943 @param name: the name of the instance
944 @type primary_node: string
945 @param primary_node: the name of the instance's primary node
946 @type secondary_nodes: list
947 @param secondary_nodes: list of secondary nodes as strings
948 @type os_type: string
949 @param os_type: the name of the instance's OS
950 @type status: boolean
951 @param status: the should_run status of the instance
953 @param memory: the memory size of the instance
955 @param vcpus: the count of VCPUs the instance has
957 @param nics: list of tuples (ip, mac, mode, link) representing
958 the NICs the instance has
959 @type disk_template: string
960 @param disk_template: the disk template of the instance
962 @param disks: the list of (size, mode) pairs
964 @param bep: the backend parameters for the instance
966 @param hvp: the hypervisor parameters for the instance
967 @type hypervisor_name: string
968 @param hypervisor_name: the hypervisor for the instance
970 @param tags: list of instance tags as strings
972 @return: the hook environment for this instance
981 "INSTANCE_NAME": name,
982 "INSTANCE_PRIMARY": primary_node,
983 "INSTANCE_SECONDARIES": " ".join(secondary_nodes),
984 "INSTANCE_OS_TYPE": os_type,
985 "INSTANCE_STATUS": str_status,
986 "INSTANCE_MEMORY": memory,
987 "INSTANCE_VCPUS": vcpus,
988 "INSTANCE_DISK_TEMPLATE": disk_template,
989 "INSTANCE_HYPERVISOR": hypervisor_name,
993 nic_count = len(nics)
994 for idx, (ip, mac, mode, link) in enumerate(nics):
997 env["INSTANCE_NIC%d_IP" % idx] = ip
998 env["INSTANCE_NIC%d_MAC" % idx] = mac
999 env["INSTANCE_NIC%d_MODE" % idx] = mode
1000 env["INSTANCE_NIC%d_LINK" % idx] = link
1001 if mode == constants.NIC_MODE_BRIDGED:
1002 env["INSTANCE_NIC%d_BRIDGE" % idx] = link
1006 env["INSTANCE_NIC_COUNT"] = nic_count
1009 disk_count = len(disks)
1010 for idx, (size, mode) in enumerate(disks):
1011 env["INSTANCE_DISK%d_SIZE" % idx] = size
1012 env["INSTANCE_DISK%d_MODE" % idx] = mode
1016 env["INSTANCE_DISK_COUNT"] = disk_count
1021 env["INSTANCE_TAGS"] = " ".join(tags)
1023 for source, kind in [(bep, "BE"), (hvp, "HV")]:
1024 for key, value in source.items():
1025 env["INSTANCE_%s_%s" % (kind, key)] = value
1030 def _NICListToTuple(lu, nics):
1031 """Build a list of nic information tuples.
1033 This list is suitable to be passed to _BuildInstanceHookEnv or as a return
1034 value in LUInstanceQueryData.
1036 @type lu: L{LogicalUnit}
1037 @param lu: the logical unit on whose behalf we execute
1038 @type nics: list of L{objects.NIC}
1039 @param nics: list of nics to convert to hooks tuples
1043 cluster = lu.cfg.GetClusterInfo()
1047 filled_params = cluster.SimpleFillNIC(nic.nicparams)
1048 mode = filled_params[constants.NIC_MODE]
1049 link = filled_params[constants.NIC_LINK]
1050 hooks_nics.append((ip, mac, mode, link))
1054 def _BuildInstanceHookEnvByObject(lu, instance, override=None):
1055 """Builds instance related env variables for hooks from an object.
1057 @type lu: L{LogicalUnit}
1058 @param lu: the logical unit on whose behalf we execute
1059 @type instance: L{objects.Instance}
1060 @param instance: the instance for which we should build the
1062 @type override: dict
1063 @param override: dictionary with key/values that will override
1066 @return: the hook environment dictionary
1069 cluster = lu.cfg.GetClusterInfo()
1070 bep = cluster.FillBE(instance)
1071 hvp = cluster.FillHV(instance)
1073 "name": instance.name,
1074 "primary_node": instance.primary_node,
1075 "secondary_nodes": instance.secondary_nodes,
1076 "os_type": instance.os,
1077 "status": instance.admin_up,
1078 "memory": bep[constants.BE_MEMORY],
1079 "vcpus": bep[constants.BE_VCPUS],
1080 "nics": _NICListToTuple(lu, instance.nics),
1081 "disk_template": instance.disk_template,
1082 "disks": [(disk.size, disk.mode) for disk in instance.disks],
1085 "hypervisor_name": instance.hypervisor,
1086 "tags": instance.tags,
1089 args.update(override)
1090 return _BuildInstanceHookEnv(**args) # pylint: disable=W0142
1093 def _AdjustCandidatePool(lu, exceptions):
1094 """Adjust the candidate pool after node operations.
1097 mod_list = lu.cfg.MaintainCandidatePool(exceptions)
1099 lu.LogInfo("Promoted nodes to master candidate role: %s",
1100 utils.CommaJoin(node.name for node in mod_list))
1101 for name in mod_list:
1102 lu.context.ReaddNode(name)
1103 mc_now, mc_max, _ = lu.cfg.GetMasterCandidateStats(exceptions)
1105 lu.LogInfo("Note: more nodes are candidates (%d) than desired (%d)" %
1109 def _DecideSelfPromotion(lu, exceptions=None):
1110 """Decide whether I should promote myself as a master candidate.
1113 cp_size = lu.cfg.GetClusterInfo().candidate_pool_size
1114 mc_now, mc_should, _ = lu.cfg.GetMasterCandidateStats(exceptions)
1115 # the new node will increase mc_max with one, so:
1116 mc_should = min(mc_should + 1, cp_size)
1117 return mc_now < mc_should
1120 def _CheckNicsBridgesExist(lu, target_nics, target_node):
1121 """Check that the brigdes needed by a list of nics exist.
1124 cluster = lu.cfg.GetClusterInfo()
1125 paramslist = [cluster.SimpleFillNIC(nic.nicparams) for nic in target_nics]
1126 brlist = [params[constants.NIC_LINK] for params in paramslist
1127 if params[constants.NIC_MODE] == constants.NIC_MODE_BRIDGED]
1129 result = lu.rpc.call_bridges_exist(target_node, brlist)
1130 result.Raise("Error checking bridges on destination node '%s'" %
1131 target_node, prereq=True, ecode=errors.ECODE_ENVIRON)
1134 def _CheckInstanceBridgesExist(lu, instance, node=None):
1135 """Check that the brigdes needed by an instance exist.
1139 node = instance.primary_node
1140 _CheckNicsBridgesExist(lu, instance.nics, node)
1143 def _CheckOSVariant(os_obj, name):
1144 """Check whether an OS name conforms to the os variants specification.
1146 @type os_obj: L{objects.OS}
1147 @param os_obj: OS object to check
1149 @param name: OS name passed by the user, to check for validity
1152 variant = objects.OS.GetVariant(name)
1153 if not os_obj.supported_variants:
1155 raise errors.OpPrereqError("OS '%s' doesn't support variants ('%s'"
1156 " passed)" % (os_obj.name, variant),
1160 raise errors.OpPrereqError("OS name must include a variant",
1163 if variant not in os_obj.supported_variants:
1164 raise errors.OpPrereqError("Unsupported OS variant", errors.ECODE_INVAL)
1167 def _GetNodeInstancesInner(cfg, fn):
1168 return [i for i in cfg.GetAllInstancesInfo().values() if fn(i)]
1171 def _GetNodeInstances(cfg, node_name):
1172 """Returns a list of all primary and secondary instances on a node.
1176 return _GetNodeInstancesInner(cfg, lambda inst: node_name in inst.all_nodes)
1179 def _GetNodePrimaryInstances(cfg, node_name):
1180 """Returns primary instances on a node.
1183 return _GetNodeInstancesInner(cfg,
1184 lambda inst: node_name == inst.primary_node)
1187 def _GetNodeSecondaryInstances(cfg, node_name):
1188 """Returns secondary instances on a node.
1191 return _GetNodeInstancesInner(cfg,
1192 lambda inst: node_name in inst.secondary_nodes)
1195 def _GetStorageTypeArgs(cfg, storage_type):
1196 """Returns the arguments for a storage type.
1199 # Special case for file storage
1200 if storage_type == constants.ST_FILE:
1201 # storage.FileStorage wants a list of storage directories
1202 return [[cfg.GetFileStorageDir(), cfg.GetSharedFileStorageDir()]]
1207 def _FindFaultyInstanceDisks(cfg, rpc, instance, node_name, prereq):
1210 for dev in instance.disks:
1211 cfg.SetDiskID(dev, node_name)
1213 result = rpc.call_blockdev_getmirrorstatus(node_name, instance.disks)
1214 result.Raise("Failed to get disk status from node %s" % node_name,
1215 prereq=prereq, ecode=errors.ECODE_ENVIRON)
1217 for idx, bdev_status in enumerate(result.payload):
1218 if bdev_status and bdev_status.ldisk_status == constants.LDS_FAULTY:
1224 def _CheckIAllocatorOrNode(lu, iallocator_slot, node_slot):
1225 """Check the sanity of iallocator and node arguments and use the
1226 cluster-wide iallocator if appropriate.
1228 Check that at most one of (iallocator, node) is specified. If none is
1229 specified, then the LU's opcode's iallocator slot is filled with the
1230 cluster-wide default iallocator.
1232 @type iallocator_slot: string
1233 @param iallocator_slot: the name of the opcode iallocator slot
1234 @type node_slot: string
1235 @param node_slot: the name of the opcode target node slot
1238 node = getattr(lu.op, node_slot, None)
1239 iallocator = getattr(lu.op, iallocator_slot, None)
1241 if node is not None and iallocator is not None:
1242 raise errors.OpPrereqError("Do not specify both, iallocator and node",
1244 elif node is None and iallocator is None:
1245 default_iallocator = lu.cfg.GetDefaultIAllocator()
1246 if default_iallocator:
1247 setattr(lu.op, iallocator_slot, default_iallocator)
1249 raise errors.OpPrereqError("No iallocator or node given and no"
1250 " cluster-wide default iallocator found;"
1251 " please specify either an iallocator or a"
1252 " node, or set a cluster-wide default"
1256 def _GetDefaultIAllocator(cfg, iallocator):
1257 """Decides on which iallocator to use.
1259 @type cfg: L{config.ConfigWriter}
1260 @param cfg: Cluster configuration object
1261 @type iallocator: string or None
1262 @param iallocator: Iallocator specified in opcode
1264 @return: Iallocator name
1268 # Use default iallocator
1269 iallocator = cfg.GetDefaultIAllocator()
1272 raise errors.OpPrereqError("No iallocator was specified, neither in the"
1273 " opcode nor as a cluster-wide default",
1279 class LUClusterPostInit(LogicalUnit):
1280 """Logical unit for running hooks after cluster initialization.
1283 HPATH = "cluster-init"
1284 HTYPE = constants.HTYPE_CLUSTER
1286 def BuildHooksEnv(self):
1291 "OP_TARGET": self.cfg.GetClusterName(),
1294 def BuildHooksNodes(self):
1295 """Build hooks nodes.
1298 return ([], [self.cfg.GetMasterNode()])
1300 def Exec(self, feedback_fn):
1307 class LUClusterDestroy(LogicalUnit):
1308 """Logical unit for destroying the cluster.
1311 HPATH = "cluster-destroy"
1312 HTYPE = constants.HTYPE_CLUSTER
1314 def BuildHooksEnv(self):
1319 "OP_TARGET": self.cfg.GetClusterName(),
1322 def BuildHooksNodes(self):
1323 """Build hooks nodes.
1328 def CheckPrereq(self):
1329 """Check prerequisites.
1331 This checks whether the cluster is empty.
1333 Any errors are signaled by raising errors.OpPrereqError.
1336 master = self.cfg.GetMasterNode()
1338 nodelist = self.cfg.GetNodeList()
1339 if len(nodelist) != 1 or nodelist[0] != master:
1340 raise errors.OpPrereqError("There are still %d node(s) in"
1341 " this cluster." % (len(nodelist) - 1),
1343 instancelist = self.cfg.GetInstanceList()
1345 raise errors.OpPrereqError("There are still %d instance(s) in"
1346 " this cluster." % len(instancelist),
1349 def Exec(self, feedback_fn):
1350 """Destroys the cluster.
1353 master = self.cfg.GetMasterNode()
1355 # Run post hooks on master node before it's removed
1356 _RunPostHook(self, master)
1358 result = self.rpc.call_node_stop_master(master, False)
1359 result.Raise("Could not disable the master role")
1364 def _VerifyCertificate(filename):
1365 """Verifies a certificate for L{LUClusterVerifyConfig}.
1367 @type filename: string
1368 @param filename: Path to PEM file
1372 cert = OpenSSL.crypto.load_certificate(OpenSSL.crypto.FILETYPE_PEM,
1373 utils.ReadFile(filename))
1374 except Exception, err: # pylint: disable=W0703
1375 return (LUClusterVerifyConfig.ETYPE_ERROR,
1376 "Failed to load X509 certificate %s: %s" % (filename, err))
1379 utils.VerifyX509Certificate(cert, constants.SSL_CERT_EXPIRATION_WARN,
1380 constants.SSL_CERT_EXPIRATION_ERROR)
1383 fnamemsg = "While verifying %s: %s" % (filename, msg)
1388 return (None, fnamemsg)
1389 elif errcode == utils.CERT_WARNING:
1390 return (LUClusterVerifyConfig.ETYPE_WARNING, fnamemsg)
1391 elif errcode == utils.CERT_ERROR:
1392 return (LUClusterVerifyConfig.ETYPE_ERROR, fnamemsg)
1394 raise errors.ProgrammerError("Unhandled certificate error code %r" % errcode)
1397 def _GetAllHypervisorParameters(cluster, instances):
1398 """Compute the set of all hypervisor parameters.
1400 @type cluster: L{objects.Cluster}
1401 @param cluster: the cluster object
1402 @param instances: list of L{objects.Instance}
1403 @param instances: additional instances from which to obtain parameters
1404 @rtype: list of (origin, hypervisor, parameters)
1405 @return: a list with all parameters found, indicating the hypervisor they
1406 apply to, and the origin (can be "cluster", "os X", or "instance Y")
1411 for hv_name in cluster.enabled_hypervisors:
1412 hvp_data.append(("cluster", hv_name, cluster.GetHVDefaults(hv_name)))
1414 for os_name, os_hvp in cluster.os_hvp.items():
1415 for hv_name, hv_params in os_hvp.items():
1417 full_params = cluster.GetHVDefaults(hv_name, os_name=os_name)
1418 hvp_data.append(("os %s" % os_name, hv_name, full_params))
1420 # TODO: collapse identical parameter values in a single one
1421 for instance in instances:
1422 if instance.hvparams:
1423 hvp_data.append(("instance %s" % instance.name, instance.hypervisor,
1424 cluster.FillHV(instance)))
1429 class _VerifyErrors(object):
1430 """Mix-in for cluster/group verify LUs.
1432 It provides _Error and _ErrorIf, and updates the self.bad boolean. (Expects
1433 self.op and self._feedback_fn to be available.)
1436 TCLUSTER = "cluster"
1438 TINSTANCE = "instance"
1440 ECLUSTERCFG = (TCLUSTER, "ECLUSTERCFG")
1441 ECLUSTERCERT = (TCLUSTER, "ECLUSTERCERT")
1442 ECLUSTERFILECHECK = (TCLUSTER, "ECLUSTERFILECHECK")
1443 ECLUSTERDANGLINGNODES = (TNODE, "ECLUSTERDANGLINGNODES")
1444 ECLUSTERDANGLINGINST = (TNODE, "ECLUSTERDANGLINGINST")
1445 EINSTANCEBADNODE = (TINSTANCE, "EINSTANCEBADNODE")
1446 EINSTANCEDOWN = (TINSTANCE, "EINSTANCEDOWN")
1447 EINSTANCELAYOUT = (TINSTANCE, "EINSTANCELAYOUT")
1448 EINSTANCEMISSINGDISK = (TINSTANCE, "EINSTANCEMISSINGDISK")
1449 EINSTANCEFAULTYDISK = (TINSTANCE, "EINSTANCEFAULTYDISK")
1450 EINSTANCEWRONGNODE = (TINSTANCE, "EINSTANCEWRONGNODE")
1451 EINSTANCESPLITGROUPS = (TINSTANCE, "EINSTANCESPLITGROUPS")
1452 ENODEDRBD = (TNODE, "ENODEDRBD")
1453 ENODEDRBDHELPER = (TNODE, "ENODEDRBDHELPER")
1454 ENODEFILECHECK = (TNODE, "ENODEFILECHECK")
1455 ENODEHOOKS = (TNODE, "ENODEHOOKS")
1456 ENODEHV = (TNODE, "ENODEHV")
1457 ENODELVM = (TNODE, "ENODELVM")
1458 ENODEN1 = (TNODE, "ENODEN1")
1459 ENODENET = (TNODE, "ENODENET")
1460 ENODEOS = (TNODE, "ENODEOS")
1461 ENODEORPHANINSTANCE = (TNODE, "ENODEORPHANINSTANCE")
1462 ENODEORPHANLV = (TNODE, "ENODEORPHANLV")
1463 ENODERPC = (TNODE, "ENODERPC")
1464 ENODESSH = (TNODE, "ENODESSH")
1465 ENODEVERSION = (TNODE, "ENODEVERSION")
1466 ENODESETUP = (TNODE, "ENODESETUP")
1467 ENODETIME = (TNODE, "ENODETIME")
1468 ENODEOOBPATH = (TNODE, "ENODEOOBPATH")
1470 ETYPE_FIELD = "code"
1471 ETYPE_ERROR = "ERROR"
1472 ETYPE_WARNING = "WARNING"
1474 def _Error(self, ecode, item, msg, *args, **kwargs):
1475 """Format an error message.
1477 Based on the opcode's error_codes parameter, either format a
1478 parseable error code, or a simpler error string.
1480 This must be called only from Exec and functions called from Exec.
1483 ltype = kwargs.get(self.ETYPE_FIELD, self.ETYPE_ERROR)
1485 # first complete the msg
1488 # then format the whole message
1489 if self.op.error_codes: # This is a mix-in. pylint: disable=E1101
1490 msg = "%s:%s:%s:%s:%s" % (ltype, etxt, itype, item, msg)
1496 msg = "%s: %s%s: %s" % (ltype, itype, item, msg)
1497 # and finally report it via the feedback_fn
1498 self._feedback_fn(" - %s" % msg) # Mix-in. pylint: disable=E1101
1500 def _ErrorIf(self, cond, *args, **kwargs):
1501 """Log an error message if the passed condition is True.
1505 or self.op.debug_simulate_errors) # pylint: disable=E1101
1507 self._Error(*args, **kwargs)
1508 # do not mark the operation as failed for WARN cases only
1509 if kwargs.get(self.ETYPE_FIELD, self.ETYPE_ERROR) == self.ETYPE_ERROR:
1510 self.bad = self.bad or cond
1513 class LUClusterVerify(NoHooksLU):
1514 """Submits all jobs necessary to verify the cluster.
1519 def ExpandNames(self):
1520 self.needed_locks = {}
1522 def Exec(self, feedback_fn):
1525 if self.op.group_name:
1526 groups = [self.op.group_name]
1527 depends_fn = lambda: None
1529 groups = self.cfg.GetNodeGroupList()
1531 # Verify global configuration
1532 jobs.append([opcodes.OpClusterVerifyConfig()])
1534 # Always depend on global verification
1535 depends_fn = lambda: [(-len(jobs), [])]
1537 jobs.extend([opcodes.OpClusterVerifyGroup(group_name=group,
1538 depends=depends_fn())]
1539 for group in groups)
1541 # Fix up all parameters
1542 for op in itertools.chain(*jobs): # pylint: disable=W0142
1543 op.debug_simulate_errors = self.op.debug_simulate_errors
1544 op.verbose = self.op.verbose
1545 op.error_codes = self.op.error_codes
1547 op.skip_checks = self.op.skip_checks
1548 except AttributeError:
1549 assert not isinstance(op, opcodes.OpClusterVerifyGroup)
1551 return ResultWithJobs(jobs)
1554 class LUClusterVerifyConfig(NoHooksLU, _VerifyErrors):
1555 """Verifies the cluster config.
1560 def _VerifyHVP(self, hvp_data):
1561 """Verifies locally the syntax of the hypervisor parameters.
1564 for item, hv_name, hv_params in hvp_data:
1565 msg = ("hypervisor %s parameters syntax check (source %s): %%s" %
1568 hv_class = hypervisor.GetHypervisor(hv_name)
1569 utils.ForceDictType(hv_params, constants.HVS_PARAMETER_TYPES)
1570 hv_class.CheckParameterSyntax(hv_params)
1571 except errors.GenericError, err:
1572 self._ErrorIf(True, self.ECLUSTERCFG, None, msg % str(err))
1574 def ExpandNames(self):
1575 self.needed_locks = dict.fromkeys(locking.LEVELS, locking.ALL_SET)
1576 self.share_locks = _ShareAll()
1578 def CheckPrereq(self):
1579 """Check prerequisites.
1582 # Retrieve all information
1583 self.all_group_info = self.cfg.GetAllNodeGroupsInfo()
1584 self.all_node_info = self.cfg.GetAllNodesInfo()
1585 self.all_inst_info = self.cfg.GetAllInstancesInfo()
1587 def Exec(self, feedback_fn):
1588 """Verify integrity of cluster, performing various test on nodes.
1592 self._feedback_fn = feedback_fn
1594 feedback_fn("* Verifying cluster config")
1596 for msg in self.cfg.VerifyConfig():
1597 self._ErrorIf(True, self.ECLUSTERCFG, None, msg)
1599 feedback_fn("* Verifying cluster certificate files")
1601 for cert_filename in constants.ALL_CERT_FILES:
1602 (errcode, msg) = _VerifyCertificate(cert_filename)
1603 self._ErrorIf(errcode, self.ECLUSTERCERT, None, msg, code=errcode)
1605 feedback_fn("* Verifying hypervisor parameters")
1607 self._VerifyHVP(_GetAllHypervisorParameters(self.cfg.GetClusterInfo(),
1608 self.all_inst_info.values()))
1610 feedback_fn("* Verifying all nodes belong to an existing group")
1612 # We do this verification here because, should this bogus circumstance
1613 # occur, it would never be caught by VerifyGroup, which only acts on
1614 # nodes/instances reachable from existing node groups.
1616 dangling_nodes = set(node.name for node in self.all_node_info.values()
1617 if node.group not in self.all_group_info)
1619 dangling_instances = {}
1620 no_node_instances = []
1622 for inst in self.all_inst_info.values():
1623 if inst.primary_node in dangling_nodes:
1624 dangling_instances.setdefault(inst.primary_node, []).append(inst.name)
1625 elif inst.primary_node not in self.all_node_info:
1626 no_node_instances.append(inst.name)
1631 utils.CommaJoin(dangling_instances.get(node.name,
1633 for node in dangling_nodes]
1635 self._ErrorIf(bool(dangling_nodes), self.ECLUSTERDANGLINGNODES, None,
1636 "the following nodes (and their instances) belong to a non"
1637 " existing group: %s", utils.CommaJoin(pretty_dangling))
1639 self._ErrorIf(bool(no_node_instances), self.ECLUSTERDANGLINGINST, None,
1640 "the following instances have a non-existing primary-node:"
1641 " %s", utils.CommaJoin(no_node_instances))
1646 class LUClusterVerifyGroup(LogicalUnit, _VerifyErrors):
1647 """Verifies the status of a node group.
1650 HPATH = "cluster-verify"
1651 HTYPE = constants.HTYPE_CLUSTER
1654 _HOOKS_INDENT_RE = re.compile("^", re.M)
1656 class NodeImage(object):
1657 """A class representing the logical and physical status of a node.
1660 @ivar name: the node name to which this object refers
1661 @ivar volumes: a structure as returned from
1662 L{ganeti.backend.GetVolumeList} (runtime)
1663 @ivar instances: a list of running instances (runtime)
1664 @ivar pinst: list of configured primary instances (config)
1665 @ivar sinst: list of configured secondary instances (config)
1666 @ivar sbp: dictionary of {primary-node: list of instances} for all
1667 instances for which this node is secondary (config)
1668 @ivar mfree: free memory, as reported by hypervisor (runtime)
1669 @ivar dfree: free disk, as reported by the node (runtime)
1670 @ivar offline: the offline status (config)
1671 @type rpc_fail: boolean
1672 @ivar rpc_fail: whether the RPC verify call was successfull (overall,
1673 not whether the individual keys were correct) (runtime)
1674 @type lvm_fail: boolean
1675 @ivar lvm_fail: whether the RPC call didn't return valid LVM data
1676 @type hyp_fail: boolean
1677 @ivar hyp_fail: whether the RPC call didn't return the instance list
1678 @type ghost: boolean
1679 @ivar ghost: whether this is a known node or not (config)
1680 @type os_fail: boolean
1681 @ivar os_fail: whether the RPC call didn't return valid OS data
1683 @ivar oslist: list of OSes as diagnosed by DiagnoseOS
1684 @type vm_capable: boolean
1685 @ivar vm_capable: whether the node can host instances
1688 def __init__(self, offline=False, name=None, vm_capable=True):
1697 self.offline = offline
1698 self.vm_capable = vm_capable
1699 self.rpc_fail = False
1700 self.lvm_fail = False
1701 self.hyp_fail = False
1703 self.os_fail = False
1706 def ExpandNames(self):
1707 # This raises errors.OpPrereqError on its own:
1708 self.group_uuid = self.cfg.LookupNodeGroup(self.op.group_name)
1710 # Get instances in node group; this is unsafe and needs verification later
1712 self.cfg.GetNodeGroupInstances(self.group_uuid, primary_only=True)
1714 self.needed_locks = {
1715 locking.LEVEL_INSTANCE: inst_names,
1716 locking.LEVEL_NODEGROUP: [self.group_uuid],
1717 locking.LEVEL_NODE: [],
1720 self.share_locks = _ShareAll()
1722 def DeclareLocks(self, level):
1723 if level == locking.LEVEL_NODE:
1724 # Get members of node group; this is unsafe and needs verification later
1725 nodes = set(self.cfg.GetNodeGroup(self.group_uuid).members)
1727 all_inst_info = self.cfg.GetAllInstancesInfo()
1729 # In Exec(), we warn about mirrored instances that have primary and
1730 # secondary living in separate node groups. To fully verify that
1731 # volumes for these instances are healthy, we will need to do an
1732 # extra call to their secondaries. We ensure here those nodes will
1734 for inst in self.owned_locks(locking.LEVEL_INSTANCE):
1735 # Important: access only the instances whose lock is owned
1736 if all_inst_info[inst].disk_template in constants.DTS_INT_MIRROR:
1737 nodes.update(all_inst_info[inst].secondary_nodes)
1739 self.needed_locks[locking.LEVEL_NODE] = nodes
1741 def CheckPrereq(self):
1742 assert self.group_uuid in self.owned_locks(locking.LEVEL_NODEGROUP)
1743 self.group_info = self.cfg.GetNodeGroup(self.group_uuid)
1745 group_nodes = set(self.group_info.members)
1747 self.cfg.GetNodeGroupInstances(self.group_uuid, primary_only=True)
1750 group_nodes.difference(self.owned_locks(locking.LEVEL_NODE))
1752 unlocked_instances = \
1753 group_instances.difference(self.owned_locks(locking.LEVEL_INSTANCE))
1756 raise errors.OpPrereqError("Missing lock for nodes: %s" %
1757 utils.CommaJoin(unlocked_nodes),
1760 if unlocked_instances:
1761 raise errors.OpPrereqError("Missing lock for instances: %s" %
1762 utils.CommaJoin(unlocked_instances),
1765 self.all_node_info = self.cfg.GetAllNodesInfo()
1766 self.all_inst_info = self.cfg.GetAllInstancesInfo()
1768 self.my_node_names = utils.NiceSort(group_nodes)
1769 self.my_inst_names = utils.NiceSort(group_instances)
1771 self.my_node_info = dict((name, self.all_node_info[name])
1772 for name in self.my_node_names)
1774 self.my_inst_info = dict((name, self.all_inst_info[name])
1775 for name in self.my_inst_names)
1777 # We detect here the nodes that will need the extra RPC calls for verifying
1778 # split LV volumes; they should be locked.
1779 extra_lv_nodes = set()
1781 for inst in self.my_inst_info.values():
1782 if inst.disk_template in constants.DTS_INT_MIRROR:
1783 for nname in inst.all_nodes:
1784 if self.all_node_info[nname].group != self.group_uuid:
1785 extra_lv_nodes.add(nname)
1787 unlocked_lv_nodes = \
1788 extra_lv_nodes.difference(self.owned_locks(locking.LEVEL_NODE))
1790 if unlocked_lv_nodes:
1791 raise errors.OpPrereqError("Missing node locks for LV check: %s" %
1792 utils.CommaJoin(unlocked_lv_nodes),
1794 self.extra_lv_nodes = list(extra_lv_nodes)
1796 def _VerifyNode(self, ninfo, nresult):
1797 """Perform some basic validation on data returned from a node.
1799 - check the result data structure is well formed and has all the
1801 - check ganeti version
1803 @type ninfo: L{objects.Node}
1804 @param ninfo: the node to check
1805 @param nresult: the results from the node
1807 @return: whether overall this call was successful (and we can expect
1808 reasonable values in the respose)
1812 _ErrorIf = self._ErrorIf # pylint: disable=C0103
1814 # main result, nresult should be a non-empty dict
1815 test = not nresult or not isinstance(nresult, dict)
1816 _ErrorIf(test, self.ENODERPC, node,
1817 "unable to verify node: no data returned")
1821 # compares ganeti version
1822 local_version = constants.PROTOCOL_VERSION
1823 remote_version = nresult.get("version", None)
1824 test = not (remote_version and
1825 isinstance(remote_version, (list, tuple)) and
1826 len(remote_version) == 2)
1827 _ErrorIf(test, self.ENODERPC, node,
1828 "connection to node returned invalid data")
1832 test = local_version != remote_version[0]
1833 _ErrorIf(test, self.ENODEVERSION, node,
1834 "incompatible protocol versions: master %s,"
1835 " node %s", local_version, remote_version[0])
1839 # node seems compatible, we can actually try to look into its results
1841 # full package version
1842 self._ErrorIf(constants.RELEASE_VERSION != remote_version[1],
1843 self.ENODEVERSION, node,
1844 "software version mismatch: master %s, node %s",
1845 constants.RELEASE_VERSION, remote_version[1],
1846 code=self.ETYPE_WARNING)
1848 hyp_result = nresult.get(constants.NV_HYPERVISOR, None)
1849 if ninfo.vm_capable and isinstance(hyp_result, dict):
1850 for hv_name, hv_result in hyp_result.iteritems():
1851 test = hv_result is not None
1852 _ErrorIf(test, self.ENODEHV, node,
1853 "hypervisor %s verify failure: '%s'", hv_name, hv_result)
1855 hvp_result = nresult.get(constants.NV_HVPARAMS, None)
1856 if ninfo.vm_capable and isinstance(hvp_result, list):
1857 for item, hv_name, hv_result in hvp_result:
1858 _ErrorIf(True, self.ENODEHV, node,
1859 "hypervisor %s parameter verify failure (source %s): %s",
1860 hv_name, item, hv_result)
1862 test = nresult.get(constants.NV_NODESETUP,
1863 ["Missing NODESETUP results"])
1864 _ErrorIf(test, self.ENODESETUP, node, "node setup error: %s",
1869 def _VerifyNodeTime(self, ninfo, nresult,
1870 nvinfo_starttime, nvinfo_endtime):
1871 """Check the node time.
1873 @type ninfo: L{objects.Node}
1874 @param ninfo: the node to check
1875 @param nresult: the remote results for the node
1876 @param nvinfo_starttime: the start time of the RPC call
1877 @param nvinfo_endtime: the end time of the RPC call
1881 _ErrorIf = self._ErrorIf # pylint: disable=C0103
1883 ntime = nresult.get(constants.NV_TIME, None)
1885 ntime_merged = utils.MergeTime(ntime)
1886 except (ValueError, TypeError):
1887 _ErrorIf(True, self.ENODETIME, node, "Node returned invalid time")
1890 if ntime_merged < (nvinfo_starttime - constants.NODE_MAX_CLOCK_SKEW):
1891 ntime_diff = "%.01fs" % abs(nvinfo_starttime - ntime_merged)
1892 elif ntime_merged > (nvinfo_endtime + constants.NODE_MAX_CLOCK_SKEW):
1893 ntime_diff = "%.01fs" % abs(ntime_merged - nvinfo_endtime)
1897 _ErrorIf(ntime_diff is not None, self.ENODETIME, node,
1898 "Node time diverges by at least %s from master node time",
1901 def _VerifyNodeLVM(self, ninfo, nresult, vg_name):
1902 """Check the node LVM results.
1904 @type ninfo: L{objects.Node}
1905 @param ninfo: the node to check
1906 @param nresult: the remote results for the node
1907 @param vg_name: the configured VG name
1914 _ErrorIf = self._ErrorIf # pylint: disable=C0103
1916 # checks vg existence and size > 20G
1917 vglist = nresult.get(constants.NV_VGLIST, None)
1919 _ErrorIf(test, self.ENODELVM, node, "unable to check volume groups")
1921 vgstatus = utils.CheckVolumeGroupSize(vglist, vg_name,
1922 constants.MIN_VG_SIZE)
1923 _ErrorIf(vgstatus, self.ENODELVM, node, vgstatus)
1926 pvlist = nresult.get(constants.NV_PVLIST, None)
1927 test = pvlist is None
1928 _ErrorIf(test, self.ENODELVM, node, "Can't get PV list from node")
1930 # check that ':' is not present in PV names, since it's a
1931 # special character for lvcreate (denotes the range of PEs to
1933 for _, pvname, owner_vg in pvlist:
1934 test = ":" in pvname
1935 _ErrorIf(test, self.ENODELVM, node, "Invalid character ':' in PV"
1936 " '%s' of VG '%s'", pvname, owner_vg)
1938 def _VerifyNodeBridges(self, ninfo, nresult, bridges):
1939 """Check the node bridges.
1941 @type ninfo: L{objects.Node}
1942 @param ninfo: the node to check
1943 @param nresult: the remote results for the node
1944 @param bridges: the expected list of bridges
1951 _ErrorIf = self._ErrorIf # pylint: disable=C0103
1953 missing = nresult.get(constants.NV_BRIDGES, None)
1954 test = not isinstance(missing, list)
1955 _ErrorIf(test, self.ENODENET, node,
1956 "did not return valid bridge information")
1958 _ErrorIf(bool(missing), self.ENODENET, node, "missing bridges: %s" %
1959 utils.CommaJoin(sorted(missing)))
1961 def _VerifyNodeNetwork(self, ninfo, nresult):
1962 """Check the node network connectivity results.
1964 @type ninfo: L{objects.Node}
1965 @param ninfo: the node to check
1966 @param nresult: the remote results for the node
1970 _ErrorIf = self._ErrorIf # pylint: disable=C0103
1972 test = constants.NV_NODELIST not in nresult
1973 _ErrorIf(test, self.ENODESSH, node,
1974 "node hasn't returned node ssh connectivity data")
1976 if nresult[constants.NV_NODELIST]:
1977 for a_node, a_msg in nresult[constants.NV_NODELIST].items():
1978 _ErrorIf(True, self.ENODESSH, node,
1979 "ssh communication with node '%s': %s", a_node, a_msg)
1981 test = constants.NV_NODENETTEST not in nresult
1982 _ErrorIf(test, self.ENODENET, node,
1983 "node hasn't returned node tcp connectivity data")
1985 if nresult[constants.NV_NODENETTEST]:
1986 nlist = utils.NiceSort(nresult[constants.NV_NODENETTEST].keys())
1988 _ErrorIf(True, self.ENODENET, node,
1989 "tcp communication with node '%s': %s",
1990 anode, nresult[constants.NV_NODENETTEST][anode])
1992 test = constants.NV_MASTERIP not in nresult
1993 _ErrorIf(test, self.ENODENET, node,
1994 "node hasn't returned node master IP reachability data")
1996 if not nresult[constants.NV_MASTERIP]:
1997 if node == self.master_node:
1998 msg = "the master node cannot reach the master IP (not configured?)"
2000 msg = "cannot reach the master IP"
2001 _ErrorIf(True, self.ENODENET, node, msg)
2003 def _VerifyInstance(self, instance, instanceconfig, node_image,
2005 """Verify an instance.
2007 This function checks to see if the required block devices are
2008 available on the instance's node.
2011 _ErrorIf = self._ErrorIf # pylint: disable=C0103
2012 node_current = instanceconfig.primary_node
2014 node_vol_should = {}
2015 instanceconfig.MapLVsByNode(node_vol_should)
2017 for node in node_vol_should:
2018 n_img = node_image[node]
2019 if n_img.offline or n_img.rpc_fail or n_img.lvm_fail:
2020 # ignore missing volumes on offline or broken nodes
2022 for volume in node_vol_should[node]:
2023 test = volume not in n_img.volumes
2024 _ErrorIf(test, self.EINSTANCEMISSINGDISK, instance,
2025 "volume %s missing on node %s", volume, node)
2027 if instanceconfig.admin_up:
2028 pri_img = node_image[node_current]
2029 test = instance not in pri_img.instances and not pri_img.offline
2030 _ErrorIf(test, self.EINSTANCEDOWN, instance,
2031 "instance not running on its primary node %s",
2034 diskdata = [(nname, success, status, idx)
2035 for (nname, disks) in diskstatus.items()
2036 for idx, (success, status) in enumerate(disks)]
2038 for nname, success, bdev_status, idx in diskdata:
2039 # the 'ghost node' construction in Exec() ensures that we have a
2041 snode = node_image[nname]
2042 bad_snode = snode.ghost or snode.offline
2043 _ErrorIf(instanceconfig.admin_up and not success and not bad_snode,
2044 self.EINSTANCEFAULTYDISK, instance,
2045 "couldn't retrieve status for disk/%s on %s: %s",
2046 idx, nname, bdev_status)
2047 _ErrorIf((instanceconfig.admin_up and success and
2048 bdev_status.ldisk_status == constants.LDS_FAULTY),
2049 self.EINSTANCEFAULTYDISK, instance,
2050 "disk/%s on %s is faulty", idx, nname)
2052 def _VerifyOrphanVolumes(self, node_vol_should, node_image, reserved):
2053 """Verify if there are any unknown volumes in the cluster.
2055 The .os, .swap and backup volumes are ignored. All other volumes are
2056 reported as unknown.
2058 @type reserved: L{ganeti.utils.FieldSet}
2059 @param reserved: a FieldSet of reserved volume names
2062 for node, n_img in node_image.items():
2063 if (n_img.offline or n_img.rpc_fail or n_img.lvm_fail or
2064 self.all_node_info[node].group != self.group_uuid):
2065 # skip non-healthy nodes
2067 for volume in n_img.volumes:
2068 test = ((node not in node_vol_should or
2069 volume not in node_vol_should[node]) and
2070 not reserved.Matches(volume))
2071 self._ErrorIf(test, self.ENODEORPHANLV, node,
2072 "volume %s is unknown", volume)
2074 def _VerifyNPlusOneMemory(self, node_image, instance_cfg):
2075 """Verify N+1 Memory Resilience.
2077 Check that if one single node dies we can still start all the
2078 instances it was primary for.
2081 cluster_info = self.cfg.GetClusterInfo()
2082 for node, n_img in node_image.items():
2083 # This code checks that every node which is now listed as
2084 # secondary has enough memory to host all instances it is
2085 # supposed to should a single other node in the cluster fail.
2086 # FIXME: not ready for failover to an arbitrary node
2087 # FIXME: does not support file-backed instances
2088 # WARNING: we currently take into account down instances as well
2089 # as up ones, considering that even if they're down someone
2090 # might want to start them even in the event of a node failure.
2091 if n_img.offline or self.all_node_info[node].group != self.group_uuid:
2092 # we're skipping nodes marked offline and nodes in other groups from
2093 # the N+1 warning, since most likely we don't have good memory
2094 # infromation from them; we already list instances living on such
2095 # nodes, and that's enough warning
2097 for prinode, instances in n_img.sbp.items():
2099 for instance in instances:
2100 bep = cluster_info.FillBE(instance_cfg[instance])
2101 if bep[constants.BE_AUTO_BALANCE]:
2102 needed_mem += bep[constants.BE_MEMORY]
2103 test = n_img.mfree < needed_mem
2104 self._ErrorIf(test, self.ENODEN1, node,
2105 "not enough memory to accomodate instance failovers"
2106 " should node %s fail (%dMiB needed, %dMiB available)",
2107 prinode, needed_mem, n_img.mfree)
2110 def _VerifyFiles(cls, errorif, nodeinfo, master_node, all_nvinfo,
2111 (files_all, files_all_opt, files_mc, files_vm)):
2112 """Verifies file checksums collected from all nodes.
2114 @param errorif: Callback for reporting errors
2115 @param nodeinfo: List of L{objects.Node} objects
2116 @param master_node: Name of master node
2117 @param all_nvinfo: RPC results
2120 assert (len(files_all | files_all_opt | files_mc | files_vm) ==
2121 sum(map(len, [files_all, files_all_opt, files_mc, files_vm]))), \
2122 "Found file listed in more than one file list"
2124 # Define functions determining which nodes to consider for a file
2127 (files_all_opt, None),
2128 (files_mc, lambda node: (node.master_candidate or
2129 node.name == master_node)),
2130 (files_vm, lambda node: node.vm_capable),
2133 # Build mapping from filename to list of nodes which should have the file
2135 for (files, fn) in files2nodefn:
2137 filenodes = nodeinfo
2139 filenodes = filter(fn, nodeinfo)
2140 nodefiles.update((filename,
2141 frozenset(map(operator.attrgetter("name"), filenodes)))
2142 for filename in files)
2144 assert set(nodefiles) == (files_all | files_all_opt | files_mc | files_vm)
2146 fileinfo = dict((filename, {}) for filename in nodefiles)
2147 ignore_nodes = set()
2149 for node in nodeinfo:
2151 ignore_nodes.add(node.name)
2154 nresult = all_nvinfo[node.name]
2156 if nresult.fail_msg or not nresult.payload:
2159 node_files = nresult.payload.get(constants.NV_FILELIST, None)
2161 test = not (node_files and isinstance(node_files, dict))
2162 errorif(test, cls.ENODEFILECHECK, node.name,
2163 "Node did not return file checksum data")
2165 ignore_nodes.add(node.name)
2168 # Build per-checksum mapping from filename to nodes having it
2169 for (filename, checksum) in node_files.items():
2170 assert filename in nodefiles
2171 fileinfo[filename].setdefault(checksum, set()).add(node.name)
2173 for (filename, checksums) in fileinfo.items():
2174 assert compat.all(len(i) > 10 for i in checksums), "Invalid checksum"
2176 # Nodes having the file
2177 with_file = frozenset(node_name
2178 for nodes in fileinfo[filename].values()
2179 for node_name in nodes) - ignore_nodes
2181 expected_nodes = nodefiles[filename] - ignore_nodes
2183 # Nodes missing file
2184 missing_file = expected_nodes - with_file
2186 if filename in files_all_opt:
2188 errorif(missing_file and missing_file != expected_nodes,
2189 cls.ECLUSTERFILECHECK, None,
2190 "File %s is optional, but it must exist on all or no"
2191 " nodes (not found on %s)",
2192 filename, utils.CommaJoin(utils.NiceSort(missing_file)))
2194 # Non-optional files
2195 errorif(missing_file, cls.ECLUSTERFILECHECK, None,
2196 "File %s is missing from node(s) %s", filename,
2197 utils.CommaJoin(utils.NiceSort(missing_file)))
2199 # Warn if a node has a file it shouldn't
2200 unexpected = with_file - expected_nodes
2202 cls.ECLUSTERFILECHECK, None,
2203 "File %s should not exist on node(s) %s",
2204 filename, utils.CommaJoin(utils.NiceSort(unexpected)))
2206 # See if there are multiple versions of the file
2207 test = len(checksums) > 1
2209 variants = ["variant %s on %s" %
2210 (idx + 1, utils.CommaJoin(utils.NiceSort(nodes)))
2211 for (idx, (checksum, nodes)) in
2212 enumerate(sorted(checksums.items()))]
2216 errorif(test, cls.ECLUSTERFILECHECK, None,
2217 "File %s found with %s different checksums (%s)",
2218 filename, len(checksums), "; ".join(variants))
2220 def _VerifyNodeDrbd(self, ninfo, nresult, instanceinfo, drbd_helper,
2222 """Verifies and the node DRBD status.
2224 @type ninfo: L{objects.Node}
2225 @param ninfo: the node to check
2226 @param nresult: the remote results for the node
2227 @param instanceinfo: the dict of instances
2228 @param drbd_helper: the configured DRBD usermode helper
2229 @param drbd_map: the DRBD map as returned by
2230 L{ganeti.config.ConfigWriter.ComputeDRBDMap}
2234 _ErrorIf = self._ErrorIf # pylint: disable=C0103
2237 helper_result = nresult.get(constants.NV_DRBDHELPER, None)
2238 test = (helper_result == None)
2239 _ErrorIf(test, self.ENODEDRBDHELPER, node,
2240 "no drbd usermode helper returned")
2242 status, payload = helper_result
2244 _ErrorIf(test, self.ENODEDRBDHELPER, node,
2245 "drbd usermode helper check unsuccessful: %s", payload)
2246 test = status and (payload != drbd_helper)
2247 _ErrorIf(test, self.ENODEDRBDHELPER, node,
2248 "wrong drbd usermode helper: %s", payload)
2250 # compute the DRBD minors
2252 for minor, instance in drbd_map[node].items():
2253 test = instance not in instanceinfo
2254 _ErrorIf(test, self.ECLUSTERCFG, None,
2255 "ghost instance '%s' in temporary DRBD map", instance)
2256 # ghost instance should not be running, but otherwise we
2257 # don't give double warnings (both ghost instance and
2258 # unallocated minor in use)
2260 node_drbd[minor] = (instance, False)
2262 instance = instanceinfo[instance]
2263 node_drbd[minor] = (instance.name, instance.admin_up)
2265 # and now check them
2266 used_minors = nresult.get(constants.NV_DRBDLIST, [])
2267 test = not isinstance(used_minors, (tuple, list))
2268 _ErrorIf(test, self.ENODEDRBD, node,
2269 "cannot parse drbd status file: %s", str(used_minors))
2271 # we cannot check drbd status
2274 for minor, (iname, must_exist) in node_drbd.items():
2275 test = minor not in used_minors and must_exist
2276 _ErrorIf(test, self.ENODEDRBD, node,
2277 "drbd minor %d of instance %s is not active", minor, iname)
2278 for minor in used_minors:
2279 test = minor not in node_drbd
2280 _ErrorIf(test, self.ENODEDRBD, node,
2281 "unallocated drbd minor %d is in use", minor)
2283 def _UpdateNodeOS(self, ninfo, nresult, nimg):
2284 """Builds the node OS structures.
2286 @type ninfo: L{objects.Node}
2287 @param ninfo: the node to check
2288 @param nresult: the remote results for the node
2289 @param nimg: the node image object
2293 _ErrorIf = self._ErrorIf # pylint: disable=C0103
2295 remote_os = nresult.get(constants.NV_OSLIST, None)
2296 test = (not isinstance(remote_os, list) or
2297 not compat.all(isinstance(v, list) and len(v) == 7
2298 for v in remote_os))
2300 _ErrorIf(test, self.ENODEOS, node,
2301 "node hasn't returned valid OS data")
2310 for (name, os_path, status, diagnose,
2311 variants, parameters, api_ver) in nresult[constants.NV_OSLIST]:
2313 if name not in os_dict:
2316 # parameters is a list of lists instead of list of tuples due to
2317 # JSON lacking a real tuple type, fix it:
2318 parameters = [tuple(v) for v in parameters]
2319 os_dict[name].append((os_path, status, diagnose,
2320 set(variants), set(parameters), set(api_ver)))
2322 nimg.oslist = os_dict
2324 def _VerifyNodeOS(self, ninfo, nimg, base):
2325 """Verifies the node OS list.
2327 @type ninfo: L{objects.Node}
2328 @param ninfo: the node to check
2329 @param nimg: the node image object
2330 @param base: the 'template' node we match against (e.g. from the master)
2334 _ErrorIf = self._ErrorIf # pylint: disable=C0103
2336 assert not nimg.os_fail, "Entered _VerifyNodeOS with failed OS rpc?"
2338 beautify_params = lambda l: ["%s: %s" % (k, v) for (k, v) in l]
2339 for os_name, os_data in nimg.oslist.items():
2340 assert os_data, "Empty OS status for OS %s?!" % os_name
2341 f_path, f_status, f_diag, f_var, f_param, f_api = os_data[0]
2342 _ErrorIf(not f_status, self.ENODEOS, node,
2343 "Invalid OS %s (located at %s): %s", os_name, f_path, f_diag)
2344 _ErrorIf(len(os_data) > 1, self.ENODEOS, node,
2345 "OS '%s' has multiple entries (first one shadows the rest): %s",
2346 os_name, utils.CommaJoin([v[0] for v in os_data]))
2347 # comparisons with the 'base' image
2348 test = os_name not in base.oslist
2349 _ErrorIf(test, self.ENODEOS, node,
2350 "Extra OS %s not present on reference node (%s)",
2354 assert base.oslist[os_name], "Base node has empty OS status?"
2355 _, b_status, _, b_var, b_param, b_api = base.oslist[os_name][0]
2357 # base OS is invalid, skipping
2359 for kind, a, b in [("API version", f_api, b_api),
2360 ("variants list", f_var, b_var),
2361 ("parameters", beautify_params(f_param),
2362 beautify_params(b_param))]:
2363 _ErrorIf(a != b, self.ENODEOS, node,
2364 "OS %s for %s differs from reference node %s: [%s] vs. [%s]",
2365 kind, os_name, base.name,
2366 utils.CommaJoin(sorted(a)), utils.CommaJoin(sorted(b)))
2368 # check any missing OSes
2369 missing = set(base.oslist.keys()).difference(nimg.oslist.keys())
2370 _ErrorIf(missing, self.ENODEOS, node,
2371 "OSes present on reference node %s but missing on this node: %s",
2372 base.name, utils.CommaJoin(missing))
2374 def _VerifyOob(self, ninfo, nresult):
2375 """Verifies out of band functionality of a node.
2377 @type ninfo: L{objects.Node}
2378 @param ninfo: the node to check
2379 @param nresult: the remote results for the node
2383 # We just have to verify the paths on master and/or master candidates
2384 # as the oob helper is invoked on the master
2385 if ((ninfo.master_candidate or ninfo.master_capable) and
2386 constants.NV_OOB_PATHS in nresult):
2387 for path_result in nresult[constants.NV_OOB_PATHS]:
2388 self._ErrorIf(path_result, self.ENODEOOBPATH, node, path_result)
2390 def _UpdateNodeVolumes(self, ninfo, nresult, nimg, vg_name):
2391 """Verifies and updates the node volume data.
2393 This function will update a L{NodeImage}'s internal structures
2394 with data from the remote call.
2396 @type ninfo: L{objects.Node}
2397 @param ninfo: the node to check
2398 @param nresult: the remote results for the node
2399 @param nimg: the node image object
2400 @param vg_name: the configured VG name
2404 _ErrorIf = self._ErrorIf # pylint: disable=C0103
2406 nimg.lvm_fail = True
2407 lvdata = nresult.get(constants.NV_LVLIST, "Missing LV data")
2410 elif isinstance(lvdata, basestring):
2411 _ErrorIf(True, self.ENODELVM, node, "LVM problem on node: %s",
2412 utils.SafeEncode(lvdata))
2413 elif not isinstance(lvdata, dict):
2414 _ErrorIf(True, self.ENODELVM, node, "rpc call to node failed (lvlist)")
2416 nimg.volumes = lvdata
2417 nimg.lvm_fail = False
2419 def _UpdateNodeInstances(self, ninfo, nresult, nimg):
2420 """Verifies and updates the node instance list.
2422 If the listing was successful, then updates this node's instance
2423 list. Otherwise, it marks the RPC call as failed for the instance
2426 @type ninfo: L{objects.Node}
2427 @param ninfo: the node to check
2428 @param nresult: the remote results for the node
2429 @param nimg: the node image object
2432 idata = nresult.get(constants.NV_INSTANCELIST, None)
2433 test = not isinstance(idata, list)
2434 self._ErrorIf(test, self.ENODEHV, ninfo.name, "rpc call to node failed"
2435 " (instancelist): %s", utils.SafeEncode(str(idata)))
2437 nimg.hyp_fail = True
2439 nimg.instances = idata
2441 def _UpdateNodeInfo(self, ninfo, nresult, nimg, vg_name):
2442 """Verifies and computes a node information map
2444 @type ninfo: L{objects.Node}
2445 @param ninfo: the node to check
2446 @param nresult: the remote results for the node
2447 @param nimg: the node image object
2448 @param vg_name: the configured VG name
2452 _ErrorIf = self._ErrorIf # pylint: disable=C0103
2454 # try to read free memory (from the hypervisor)
2455 hv_info = nresult.get(constants.NV_HVINFO, None)
2456 test = not isinstance(hv_info, dict) or "memory_free" not in hv_info
2457 _ErrorIf(test, self.ENODEHV, node, "rpc call to node failed (hvinfo)")
2460 nimg.mfree = int(hv_info["memory_free"])
2461 except (ValueError, TypeError):
2462 _ErrorIf(True, self.ENODERPC, node,
2463 "node returned invalid nodeinfo, check hypervisor")
2465 # FIXME: devise a free space model for file based instances as well
2466 if vg_name is not None:
2467 test = (constants.NV_VGLIST not in nresult or
2468 vg_name not in nresult[constants.NV_VGLIST])
2469 _ErrorIf(test, self.ENODELVM, node,
2470 "node didn't return data for the volume group '%s'"
2471 " - it is either missing or broken", vg_name)
2474 nimg.dfree = int(nresult[constants.NV_VGLIST][vg_name])
2475 except (ValueError, TypeError):
2476 _ErrorIf(True, self.ENODERPC, node,
2477 "node returned invalid LVM info, check LVM status")
2479 def _CollectDiskInfo(self, nodelist, node_image, instanceinfo):
2480 """Gets per-disk status information for all instances.
2482 @type nodelist: list of strings
2483 @param nodelist: Node names
2484 @type node_image: dict of (name, L{objects.Node})
2485 @param node_image: Node objects
2486 @type instanceinfo: dict of (name, L{objects.Instance})
2487 @param instanceinfo: Instance objects
2488 @rtype: {instance: {node: [(succes, payload)]}}
2489 @return: a dictionary of per-instance dictionaries with nodes as
2490 keys and disk information as values; the disk information is a
2491 list of tuples (success, payload)
2494 _ErrorIf = self._ErrorIf # pylint: disable=C0103
2497 node_disks_devonly = {}
2498 diskless_instances = set()
2499 diskless = constants.DT_DISKLESS
2501 for nname in nodelist:
2502 node_instances = list(itertools.chain(node_image[nname].pinst,
2503 node_image[nname].sinst))
2504 diskless_instances.update(inst for inst in node_instances
2505 if instanceinfo[inst].disk_template == diskless)
2506 disks = [(inst, disk)
2507 for inst in node_instances
2508 for disk in instanceinfo[inst].disks]
2511 # No need to collect data
2514 node_disks[nname] = disks
2516 # Creating copies as SetDiskID below will modify the objects and that can
2517 # lead to incorrect data returned from nodes
2518 devonly = [dev.Copy() for (_, dev) in disks]
2521 self.cfg.SetDiskID(dev, nname)
2523 node_disks_devonly[nname] = devonly
2525 assert len(node_disks) == len(node_disks_devonly)
2527 # Collect data from all nodes with disks
2528 result = self.rpc.call_blockdev_getmirrorstatus_multi(node_disks.keys(),
2531 assert len(result) == len(node_disks)
2535 for (nname, nres) in result.items():
2536 disks = node_disks[nname]
2539 # No data from this node
2540 data = len(disks) * [(False, "node offline")]
2543 _ErrorIf(msg, self.ENODERPC, nname,
2544 "while getting disk information: %s", msg)
2546 # No data from this node
2547 data = len(disks) * [(False, msg)]
2550 for idx, i in enumerate(nres.payload):
2551 if isinstance(i, (tuple, list)) and len(i) == 2:
2554 logging.warning("Invalid result from node %s, entry %d: %s",
2556 data.append((False, "Invalid result from the remote node"))
2558 for ((inst, _), status) in zip(disks, data):
2559 instdisk.setdefault(inst, {}).setdefault(nname, []).append(status)
2561 # Add empty entries for diskless instances.
2562 for inst in diskless_instances:
2563 assert inst not in instdisk
2566 assert compat.all(len(statuses) == len(instanceinfo[inst].disks) and
2567 len(nnames) <= len(instanceinfo[inst].all_nodes) and
2568 compat.all(isinstance(s, (tuple, list)) and
2569 len(s) == 2 for s in statuses)
2570 for inst, nnames in instdisk.items()
2571 for nname, statuses in nnames.items())
2572 assert set(instdisk) == set(instanceinfo), "instdisk consistency failure"
2577 def _SshNodeSelector(group_uuid, all_nodes):
2578 """Create endless iterators for all potential SSH check hosts.
2581 nodes = [node for node in all_nodes
2582 if (node.group != group_uuid and
2584 keyfunc = operator.attrgetter("group")
2586 return map(itertools.cycle,
2587 [sorted(map(operator.attrgetter("name"), names))
2588 for _, names in itertools.groupby(sorted(nodes, key=keyfunc),
2592 def _SelectSshCheckNodes(cls, group_nodes, group_uuid, all_nodes):
2593 """Choose which nodes should talk to which other nodes.
2595 We will make nodes contact all nodes in their group, and one node from
2598 @warning: This algorithm has a known issue if one node group is much
2599 smaller than others (e.g. just one node). In such a case all other
2600 nodes will talk to the single node.
2603 online_nodes = sorted(node.name for node in group_nodes if not node.offline)
2604 sel = cls._SshNodeSelector(group_uuid, all_nodes)
2606 return (online_nodes,
2607 dict((name, sorted([i.next() for i in sel]))
2608 for name in online_nodes))
2610 def BuildHooksEnv(self):
2613 Cluster-Verify hooks just ran in the post phase and their failure makes
2614 the output be logged in the verify output and the verification to fail.
2618 "CLUSTER_TAGS": " ".join(self.cfg.GetClusterInfo().GetTags())
2621 env.update(("NODE_TAGS_%s" % node.name, " ".join(node.GetTags()))
2622 for node in self.my_node_info.values())
2626 def BuildHooksNodes(self):
2627 """Build hooks nodes.
2630 return ([], self.my_node_names)
2632 def Exec(self, feedback_fn):
2633 """Verify integrity of the node group, performing various test on nodes.
2636 # This method has too many local variables. pylint: disable=R0914
2637 feedback_fn("* Verifying group '%s'" % self.group_info.name)
2639 if not self.my_node_names:
2641 feedback_fn("* Empty node group, skipping verification")
2645 _ErrorIf = self._ErrorIf # pylint: disable=C0103
2646 verbose = self.op.verbose
2647 self._feedback_fn = feedback_fn
2649 vg_name = self.cfg.GetVGName()
2650 drbd_helper = self.cfg.GetDRBDHelper()
2651 cluster = self.cfg.GetClusterInfo()
2652 groupinfo = self.cfg.GetAllNodeGroupsInfo()
2653 hypervisors = cluster.enabled_hypervisors
2654 node_data_list = [self.my_node_info[name] for name in self.my_node_names]
2656 i_non_redundant = [] # Non redundant instances
2657 i_non_a_balanced = [] # Non auto-balanced instances
2658 n_offline = 0 # Count of offline nodes
2659 n_drained = 0 # Count of nodes being drained
2660 node_vol_should = {}
2662 # FIXME: verify OS list
2665 filemap = _ComputeAncillaryFiles(cluster, False)
2667 # do local checksums
2668 master_node = self.master_node = self.cfg.GetMasterNode()
2669 master_ip = self.cfg.GetMasterIP()
2671 feedback_fn("* Gathering data (%d nodes)" % len(self.my_node_names))
2673 node_verify_param = {
2674 constants.NV_FILELIST:
2675 utils.UniqueSequence(filename
2676 for files in filemap
2677 for filename in files),
2678 constants.NV_NODELIST:
2679 self._SelectSshCheckNodes(node_data_list, self.group_uuid,
2680 self.all_node_info.values()),
2681 constants.NV_HYPERVISOR: hypervisors,
2682 constants.NV_HVPARAMS:
2683 _GetAllHypervisorParameters(cluster, self.all_inst_info.values()),
2684 constants.NV_NODENETTEST: [(node.name, node.primary_ip, node.secondary_ip)
2685 for node in node_data_list
2686 if not node.offline],
2687 constants.NV_INSTANCELIST: hypervisors,
2688 constants.NV_VERSION: None,
2689 constants.NV_HVINFO: self.cfg.GetHypervisorType(),
2690 constants.NV_NODESETUP: None,
2691 constants.NV_TIME: None,
2692 constants.NV_MASTERIP: (master_node, master_ip),
2693 constants.NV_OSLIST: None,
2694 constants.NV_VMNODES: self.cfg.GetNonVmCapableNodeList(),
2697 if vg_name is not None:
2698 node_verify_param[constants.NV_VGLIST] = None
2699 node_verify_param[constants.NV_LVLIST] = vg_name
2700 node_verify_param[constants.NV_PVLIST] = [vg_name]
2701 node_verify_param[constants.NV_DRBDLIST] = None
2704 node_verify_param[constants.NV_DRBDHELPER] = drbd_helper
2707 # FIXME: this needs to be changed per node-group, not cluster-wide
2709 default_nicpp = cluster.nicparams[constants.PP_DEFAULT]
2710 if default_nicpp[constants.NIC_MODE] == constants.NIC_MODE_BRIDGED:
2711 bridges.add(default_nicpp[constants.NIC_LINK])
2712 for instance in self.my_inst_info.values():
2713 for nic in instance.nics:
2714 full_nic = cluster.SimpleFillNIC(nic.nicparams)
2715 if full_nic[constants.NIC_MODE] == constants.NIC_MODE_BRIDGED:
2716 bridges.add(full_nic[constants.NIC_LINK])
2719 node_verify_param[constants.NV_BRIDGES] = list(bridges)
2721 # Build our expected cluster state
2722 node_image = dict((node.name, self.NodeImage(offline=node.offline,
2724 vm_capable=node.vm_capable))
2725 for node in node_data_list)
2729 for node in self.all_node_info.values():
2730 path = _SupportsOob(self.cfg, node)
2731 if path and path not in oob_paths:
2732 oob_paths.append(path)
2735 node_verify_param[constants.NV_OOB_PATHS] = oob_paths
2737 for instance in self.my_inst_names:
2738 inst_config = self.my_inst_info[instance]
2740 for nname in inst_config.all_nodes:
2741 if nname not in node_image:
2742 gnode = self.NodeImage(name=nname)
2743 gnode.ghost = (nname not in self.all_node_info)
2744 node_image[nname] = gnode
2746 inst_config.MapLVsByNode(node_vol_should)
2748 pnode = inst_config.primary_node
2749 node_image[pnode].pinst.append(instance)
2751 for snode in inst_config.secondary_nodes:
2752 nimg = node_image[snode]
2753 nimg.sinst.append(instance)
2754 if pnode not in nimg.sbp:
2755 nimg.sbp[pnode] = []
2756 nimg.sbp[pnode].append(instance)
2758 # At this point, we have the in-memory data structures complete,
2759 # except for the runtime information, which we'll gather next
2761 # Due to the way our RPC system works, exact response times cannot be
2762 # guaranteed (e.g. a broken node could run into a timeout). By keeping the
2763 # time before and after executing the request, we can at least have a time
2765 nvinfo_starttime = time.time()
2766 all_nvinfo = self.rpc.call_node_verify(self.my_node_names,
2768 self.cfg.GetClusterName())
2769 nvinfo_endtime = time.time()
2771 if self.extra_lv_nodes and vg_name is not None:
2773 self.rpc.call_node_verify(self.extra_lv_nodes,
2774 {constants.NV_LVLIST: vg_name},
2775 self.cfg.GetClusterName())
2777 extra_lv_nvinfo = {}
2779 all_drbd_map = self.cfg.ComputeDRBDMap()
2781 feedback_fn("* Gathering disk information (%s nodes)" %
2782 len(self.my_node_names))
2783 instdisk = self._CollectDiskInfo(self.my_node_names, node_image,
2786 feedback_fn("* Verifying configuration file consistency")
2788 # If not all nodes are being checked, we need to make sure the master node
2789 # and a non-checked vm_capable node are in the list.
2790 absent_nodes = set(self.all_node_info).difference(self.my_node_info)
2792 vf_nvinfo = all_nvinfo.copy()
2793 vf_node_info = list(self.my_node_info.values())
2794 additional_nodes = []
2795 if master_node not in self.my_node_info:
2796 additional_nodes.append(master_node)
2797 vf_node_info.append(self.all_node_info[master_node])
2798 # Add the first vm_capable node we find which is not included
2799 for node in absent_nodes:
2800 nodeinfo = self.all_node_info[node]
2801 if nodeinfo.vm_capable and not nodeinfo.offline:
2802 additional_nodes.append(node)
2803 vf_node_info.append(self.all_node_info[node])
2805 key = constants.NV_FILELIST
2806 vf_nvinfo.update(self.rpc.call_node_verify(additional_nodes,
2807 {key: node_verify_param[key]},
2808 self.cfg.GetClusterName()))
2810 vf_nvinfo = all_nvinfo
2811 vf_node_info = self.my_node_info.values()
2813 self._VerifyFiles(_ErrorIf, vf_node_info, master_node, vf_nvinfo, filemap)
2815 feedback_fn("* Verifying node status")
2819 for node_i in node_data_list:
2821 nimg = node_image[node]
2825 feedback_fn("* Skipping offline node %s" % (node,))
2829 if node == master_node:
2831 elif node_i.master_candidate:
2832 ntype = "master candidate"
2833 elif node_i.drained:
2839 feedback_fn("* Verifying node %s (%s)" % (node, ntype))
2841 msg = all_nvinfo[node].fail_msg
2842 _ErrorIf(msg, self.ENODERPC, node, "while contacting node: %s", msg)
2844 nimg.rpc_fail = True
2847 nresult = all_nvinfo[node].payload
2849 nimg.call_ok = self._VerifyNode(node_i, nresult)
2850 self._VerifyNodeTime(node_i, nresult, nvinfo_starttime, nvinfo_endtime)
2851 self._VerifyNodeNetwork(node_i, nresult)
2852 self._VerifyOob(node_i, nresult)
2855 self._VerifyNodeLVM(node_i, nresult, vg_name)
2856 self._VerifyNodeDrbd(node_i, nresult, self.all_inst_info, drbd_helper,
2859 self._UpdateNodeVolumes(node_i, nresult, nimg, vg_name)
2860 self._UpdateNodeInstances(node_i, nresult, nimg)
2861 self._UpdateNodeInfo(node_i, nresult, nimg, vg_name)
2862 self._UpdateNodeOS(node_i, nresult, nimg)
2864 if not nimg.os_fail:
2865 if refos_img is None:
2867 self._VerifyNodeOS(node_i, nimg, refos_img)
2868 self._VerifyNodeBridges(node_i, nresult, bridges)
2870 # Check whether all running instancies are primary for the node. (This
2871 # can no longer be done from _VerifyInstance below, since some of the
2872 # wrong instances could be from other node groups.)
2873 non_primary_inst = set(nimg.instances).difference(nimg.pinst)
2875 for inst in non_primary_inst:
2876 test = inst in self.all_inst_info
2877 _ErrorIf(test, self.EINSTANCEWRONGNODE, inst,
2878 "instance should not run on node %s", node_i.name)
2879 _ErrorIf(not test, self.ENODEORPHANINSTANCE, node_i.name,
2880 "node is running unknown instance %s", inst)
2882 for node, result in extra_lv_nvinfo.items():
2883 self._UpdateNodeVolumes(self.all_node_info[node], result.payload,
2884 node_image[node], vg_name)
2886 feedback_fn("* Verifying instance status")
2887 for instance in self.my_inst_names:
2889 feedback_fn("* Verifying instance %s" % instance)
2890 inst_config = self.my_inst_info[instance]
2891 self._VerifyInstance(instance, inst_config, node_image,
2893 inst_nodes_offline = []
2895 pnode = inst_config.primary_node
2896 pnode_img = node_image[pnode]
2897 _ErrorIf(pnode_img.rpc_fail and not pnode_img.offline,
2898 self.ENODERPC, pnode, "instance %s, connection to"
2899 " primary node failed", instance)
2901 _ErrorIf(inst_config.admin_up and pnode_img.offline,
2902 self.EINSTANCEBADNODE, instance,
2903 "instance is marked as running and lives on offline node %s",
2904 inst_config.primary_node)
2906 # If the instance is non-redundant we cannot survive losing its primary
2907 # node, so we are not N+1 compliant. On the other hand we have no disk
2908 # templates with more than one secondary so that situation is not well
2910 # FIXME: does not support file-backed instances
2911 if not inst_config.secondary_nodes:
2912 i_non_redundant.append(instance)
2914 _ErrorIf(len(inst_config.secondary_nodes) > 1, self.EINSTANCELAYOUT,
2915 instance, "instance has multiple secondary nodes: %s",
2916 utils.CommaJoin(inst_config.secondary_nodes),
2917 code=self.ETYPE_WARNING)
2919 if inst_config.disk_template in constants.DTS_INT_MIRROR:
2920 pnode = inst_config.primary_node
2921 instance_nodes = utils.NiceSort(inst_config.all_nodes)
2922 instance_groups = {}
2924 for node in instance_nodes:
2925 instance_groups.setdefault(self.all_node_info[node].group,
2929 "%s (group %s)" % (utils.CommaJoin(nodes), groupinfo[group].name)
2930 # Sort so that we always list the primary node first.
2931 for group, nodes in sorted(instance_groups.items(),
2932 key=lambda (_, nodes): pnode in nodes,
2935 self._ErrorIf(len(instance_groups) > 1, self.EINSTANCESPLITGROUPS,
2936 instance, "instance has primary and secondary nodes in"
2937 " different groups: %s", utils.CommaJoin(pretty_list),
2938 code=self.ETYPE_WARNING)
2940 if not cluster.FillBE(inst_config)[constants.BE_AUTO_BALANCE]:
2941 i_non_a_balanced.append(instance)
2943 for snode in inst_config.secondary_nodes:
2944 s_img = node_image[snode]
2945 _ErrorIf(s_img.rpc_fail and not s_img.offline, self.ENODERPC, snode,
2946 "instance %s, connection to secondary node failed", instance)
2949 inst_nodes_offline.append(snode)
2951 # warn that the instance lives on offline nodes
2952 _ErrorIf(inst_nodes_offline, self.EINSTANCEBADNODE, instance,
2953 "instance has offline secondary node(s) %s",
2954 utils.CommaJoin(inst_nodes_offline))
2955 # ... or ghost/non-vm_capable nodes
2956 for node in inst_config.all_nodes:
2957 _ErrorIf(node_image[node].ghost, self.EINSTANCEBADNODE, instance,
2958 "instance lives on ghost node %s", node)
2959 _ErrorIf(not node_image[node].vm_capable, self.EINSTANCEBADNODE,
2960 instance, "instance lives on non-vm_capable node %s", node)
2962 feedback_fn("* Verifying orphan volumes")
2963 reserved = utils.FieldSet(*cluster.reserved_lvs)
2965 # We will get spurious "unknown volume" warnings if any node of this group
2966 # is secondary for an instance whose primary is in another group. To avoid
2967 # them, we find these instances and add their volumes to node_vol_should.
2968 for inst in self.all_inst_info.values():
2969 for secondary in inst.secondary_nodes:
2970 if (secondary in self.my_node_info
2971 and inst.name not in self.my_inst_info):
2972 inst.MapLVsByNode(node_vol_should)
2975 self._VerifyOrphanVolumes(node_vol_should, node_image, reserved)
2977 if constants.VERIFY_NPLUSONE_MEM not in self.op.skip_checks:
2978 feedback_fn("* Verifying N+1 Memory redundancy")
2979 self._VerifyNPlusOneMemory(node_image, self.my_inst_info)
2981 feedback_fn("* Other Notes")
2983 feedback_fn(" - NOTICE: %d non-redundant instance(s) found."
2984 % len(i_non_redundant))
2986 if i_non_a_balanced:
2987 feedback_fn(" - NOTICE: %d non-auto-balanced instance(s) found."
2988 % len(i_non_a_balanced))
2991 feedback_fn(" - NOTICE: %d offline node(s) found." % n_offline)
2994 feedback_fn(" - NOTICE: %d drained node(s) found." % n_drained)
2998 def HooksCallBack(self, phase, hooks_results, feedback_fn, lu_result):
2999 """Analyze the post-hooks' result
3001 This method analyses the hook result, handles it, and sends some
3002 nicely-formatted feedback back to the user.
3004 @param phase: one of L{constants.HOOKS_PHASE_POST} or
3005 L{constants.HOOKS_PHASE_PRE}; it denotes the hooks phase
3006 @param hooks_results: the results of the multi-node hooks rpc call
3007 @param feedback_fn: function used send feedback back to the caller
3008 @param lu_result: previous Exec result
3009 @return: the new Exec result, based on the previous result
3013 # We only really run POST phase hooks, only for non-empty groups,
3014 # and are only interested in their results
3015 if not self.my_node_names:
3018 elif phase == constants.HOOKS_PHASE_POST:
3019 # Used to change hooks' output to proper indentation
3020 feedback_fn("* Hooks Results")
3021 assert hooks_results, "invalid result from hooks"
3023 for node_name in hooks_results:
3024 res = hooks_results[node_name]
3026 test = msg and not res.offline
3027 self._ErrorIf(test, self.ENODEHOOKS, node_name,
3028 "Communication failure in hooks execution: %s", msg)
3029 if res.offline or msg:
3030 # No need to investigate payload if node is offline or gave
3033 for script, hkr, output in res.payload:
3034 test = hkr == constants.HKR_FAIL
3035 self._ErrorIf(test, self.ENODEHOOKS, node_name,
3036 "Script %s failed, output:", script)
3038 output = self._HOOKS_INDENT_RE.sub(" ", output)
3039 feedback_fn("%s" % output)
3045 class LUClusterVerifyDisks(NoHooksLU):
3046 """Verifies the cluster disks status.
3051 def ExpandNames(self):
3052 self.share_locks = _ShareAll()
3053 self.needed_locks = {
3054 locking.LEVEL_NODEGROUP: locking.ALL_SET,
3057 def Exec(self, feedback_fn):
3058 group_names = self.owned_locks(locking.LEVEL_NODEGROUP)
3060 # Submit one instance of L{opcodes.OpGroupVerifyDisks} per node group
3061 return ResultWithJobs([[opcodes.OpGroupVerifyDisks(group_name=group)]
3062 for group in group_names])
3065 class LUGroupVerifyDisks(NoHooksLU):
3066 """Verifies the status of all disks in a node group.
3071 def ExpandNames(self):
3072 # Raises errors.OpPrereqError on its own if group can't be found
3073 self.group_uuid = self.cfg.LookupNodeGroup(self.op.group_name)
3075 self.share_locks = _ShareAll()
3076 self.needed_locks = {
3077 locking.LEVEL_INSTANCE: [],
3078 locking.LEVEL_NODEGROUP: [],
3079 locking.LEVEL_NODE: [],
3082 def DeclareLocks(self, level):
3083 if level == locking.LEVEL_INSTANCE:
3084 assert not self.needed_locks[locking.LEVEL_INSTANCE]
3086 # Lock instances optimistically, needs verification once node and group
3087 # locks have been acquired
3088 self.needed_locks[locking.LEVEL_INSTANCE] = \
3089 self.cfg.GetNodeGroupInstances(self.group_uuid)
3091 elif level == locking.LEVEL_NODEGROUP:
3092 assert not self.needed_locks[locking.LEVEL_NODEGROUP]
3094 self.needed_locks[locking.LEVEL_NODEGROUP] = \
3095 set([self.group_uuid] +
3096 # Lock all groups used by instances optimistically; this requires
3097 # going via the node before it's locked, requiring verification
3100 for instance_name in self.owned_locks(locking.LEVEL_INSTANCE)
3101 for group_uuid in self.cfg.GetInstanceNodeGroups(instance_name)])
3103 elif level == locking.LEVEL_NODE:
3104 # This will only lock the nodes in the group to be verified which contain
3106 self.recalculate_locks[locking.LEVEL_NODE] = constants.LOCKS_APPEND
3107 self._LockInstancesNodes()
3109 # Lock all nodes in group to be verified
3110 assert self.group_uuid in self.owned_locks(locking.LEVEL_NODEGROUP)
3111 member_nodes = self.cfg.GetNodeGroup(self.group_uuid).members
3112 self.needed_locks[locking.LEVEL_NODE].extend(member_nodes)
3114 def CheckPrereq(self):
3115 owned_instances = frozenset(self.owned_locks(locking.LEVEL_INSTANCE))
3116 owned_groups = frozenset(self.owned_locks(locking.LEVEL_NODEGROUP))
3117 owned_nodes = frozenset(self.owned_locks(locking.LEVEL_NODE))
3119 assert self.group_uuid in owned_groups
3121 # Check if locked instances are still correct
3122 _CheckNodeGroupInstances(self.cfg, self.group_uuid, owned_instances)
3124 # Get instance information
3125 self.instances = dict(self.cfg.GetMultiInstanceInfo(owned_instances))
3127 # Check if node groups for locked instances are still correct
3128 for (instance_name, inst) in self.instances.items():
3129 assert owned_nodes.issuperset(inst.all_nodes), \
3130 "Instance %s's nodes changed while we kept the lock" % instance_name
3132 inst_groups = _CheckInstanceNodeGroups(self.cfg, instance_name,
3135 assert self.group_uuid in inst_groups, \
3136 "Instance %s has no node in group %s" % (instance_name, self.group_uuid)
3138 def Exec(self, feedback_fn):
3139 """Verify integrity of cluster disks.
3141 @rtype: tuple of three items
3142 @return: a tuple of (dict of node-to-node_error, list of instances
3143 which need activate-disks, dict of instance: (node, volume) for
3148 res_instances = set()
3151 nv_dict = _MapInstanceDisksToNodes([inst
3152 for inst in self.instances.values()
3156 nodes = utils.NiceSort(set(self.owned_locks(locking.LEVEL_NODE)) &
3157 set(self.cfg.GetVmCapableNodeList()))
3159 node_lvs = self.rpc.call_lv_list(nodes, [])
3161 for (node, node_res) in node_lvs.items():
3162 if node_res.offline:
3165 msg = node_res.fail_msg
3167 logging.warning("Error enumerating LVs on node %s: %s", node, msg)
3168 res_nodes[node] = msg
3171 for lv_name, (_, _, lv_online) in node_res.payload.items():
3172 inst = nv_dict.pop((node, lv_name), None)
3173 if not (lv_online or inst is None):
3174 res_instances.add(inst)
3176 # any leftover items in nv_dict are missing LVs, let's arrange the data
3178 for key, inst in nv_dict.iteritems():
3179 res_missing.setdefault(inst, []).append(list(key))
3181 return (res_nodes, list(res_instances), res_missing)
3184 class LUClusterRepairDiskSizes(NoHooksLU):
3185 """Verifies the cluster disks sizes.
3190 def ExpandNames(self):
3191 if self.op.instances:
3192 self.wanted_names = _GetWantedInstances(self, self.op.instances)
3193 self.needed_locks = {
3194 locking.LEVEL_NODE: [],
3195 locking.LEVEL_INSTANCE: self.wanted_names,
3197 self.recalculate_locks[locking.LEVEL_NODE] = constants.LOCKS_REPLACE
3199 self.wanted_names = None
3200 self.needed_locks = {
3201 locking.LEVEL_NODE: locking.ALL_SET,
3202 locking.LEVEL_INSTANCE: locking.ALL_SET,
3204 self.share_locks = {
3205 locking.LEVEL_NODE: 1,
3206 locking.LEVEL_INSTANCE: 0,
3209 def DeclareLocks(self, level):
3210 if level == locking.LEVEL_NODE and self.wanted_names is not None:
3211 self._LockInstancesNodes(primary_only=True)
3213 def CheckPrereq(self):
3214 """Check prerequisites.
3216 This only checks the optional instance list against the existing names.
3219 if self.wanted_names is None:
3220 self.wanted_names = self.owned_locks(locking.LEVEL_INSTANCE)
3222 self.wanted_instances = \
3223 map(compat.snd, self.cfg.GetMultiInstanceInfo(self.wanted_names))
3225 def _EnsureChildSizes(self, disk):
3226 """Ensure children of the disk have the needed disk size.
3228 This is valid mainly for DRBD8 and fixes an issue where the
3229 children have smaller disk size.
3231 @param disk: an L{ganeti.objects.Disk} object
3234 if disk.dev_type == constants.LD_DRBD8:
3235 assert disk.children, "Empty children for DRBD8?"
3236 fchild = disk.children[0]
3237 mismatch = fchild.size < disk.size
3239 self.LogInfo("Child disk has size %d, parent %d, fixing",
3240 fchild.size, disk.size)
3241 fchild.size = disk.size
3243 # and we recurse on this child only, not on the metadev
3244 return self._EnsureChildSizes(fchild) or mismatch
3248 def Exec(self, feedback_fn):
3249 """Verify the size of cluster disks.
3252 # TODO: check child disks too
3253 # TODO: check differences in size between primary/secondary nodes
3255 for instance in self.wanted_instances:
3256 pnode = instance.primary_node
3257 if pnode not in per_node_disks:
3258 per_node_disks[pnode] = []
3259 for idx, disk in enumerate(instance.disks):
3260 per_node_disks[pnode].append((instance, idx, disk))
3263 for node, dskl in per_node_disks.items():
3264 newl = [v[2].Copy() for v in dskl]
3266 self.cfg.SetDiskID(dsk, node)
3267 result = self.rpc.call_blockdev_getsize(node, newl)
3269 self.LogWarning("Failure in blockdev_getsize call to node"
3270 " %s, ignoring", node)
3272 if len(result.payload) != len(dskl):
3273 logging.warning("Invalid result from node %s: len(dksl)=%d,"
3274 " result.payload=%s", node, len(dskl), result.payload)
3275 self.LogWarning("Invalid result from node %s, ignoring node results",
3278 for ((instance, idx, disk), size) in zip(dskl, result.payload):
3280 self.LogWarning("Disk %d of instance %s did not return size"
3281 " information, ignoring", idx, instance.name)
3283 if not isinstance(size, (int, long)):
3284 self.LogWarning("Disk %d of instance %s did not return valid"
3285 " size information, ignoring", idx, instance.name)
3288 if size != disk.size:
3289 self.LogInfo("Disk %d of instance %s has mismatched size,"
3290 " correcting: recorded %d, actual %d", idx,
3291 instance.name, disk.size, size)
3293 self.cfg.Update(instance, feedback_fn)
3294 changed.append((instance.name, idx, size))
3295 if self._EnsureChildSizes(disk):
3296 self.cfg.Update(instance, feedback_fn)
3297 changed.append((instance.name, idx, disk.size))
3301 class LUClusterRename(LogicalUnit):
3302 """Rename the cluster.
3305 HPATH = "cluster-rename"
3306 HTYPE = constants.HTYPE_CLUSTER
3308 def BuildHooksEnv(self):
3313 "OP_TARGET": self.cfg.GetClusterName(),
3314 "NEW_NAME": self.op.name,
3317 def BuildHooksNodes(self):
3318 """Build hooks nodes.
3321 return ([self.cfg.GetMasterNode()], self.cfg.GetNodeList())
3323 def CheckPrereq(self):
3324 """Verify that the passed name is a valid one.
3327 hostname = netutils.GetHostname(name=self.op.name,
3328 family=self.cfg.GetPrimaryIPFamily())
3330 new_name = hostname.name
3331 self.ip = new_ip = hostname.ip
3332 old_name = self.cfg.GetClusterName()
3333 old_ip = self.cfg.GetMasterIP()
3334 if new_name == old_name and new_ip == old_ip:
3335 raise errors.OpPrereqError("Neither the name nor the IP address of the"
3336 " cluster has changed",
3338 if new_ip != old_ip:
3339 if netutils.TcpPing(new_ip, constants.DEFAULT_NODED_PORT):
3340 raise errors.OpPrereqError("The given cluster IP address (%s) is"
3341 " reachable on the network" %
3342 new_ip, errors.ECODE_NOTUNIQUE)
3344 self.op.name = new_name
3346 def Exec(self, feedback_fn):
3347 """Rename the cluster.
3350 clustername = self.op.name
3353 # shutdown the master IP
3354 master = self.cfg.GetMasterNode()
3355 result = self.rpc.call_node_stop_master(master, False)
3356 result.Raise("Could not disable the master role")
3359 cluster = self.cfg.GetClusterInfo()
3360 cluster.cluster_name = clustername
3361 cluster.master_ip = ip
3362 self.cfg.Update(cluster, feedback_fn)
3364 # update the known hosts file
3365 ssh.WriteKnownHostsFile(self.cfg, constants.SSH_KNOWN_HOSTS_FILE)
3366 node_list = self.cfg.GetOnlineNodeList()
3368 node_list.remove(master)
3371 _UploadHelper(self, node_list, constants.SSH_KNOWN_HOSTS_FILE)
3373 result = self.rpc.call_node_start_master(master, False, False)
3374 msg = result.fail_msg
3376 self.LogWarning("Could not re-enable the master role on"
3377 " the master, please restart manually: %s", msg)
3382 class LUClusterSetParams(LogicalUnit):
3383 """Change the parameters of the cluster.
3386 HPATH = "cluster-modify"
3387 HTYPE = constants.HTYPE_CLUSTER
3390 def CheckArguments(self):
3394 if self.op.uid_pool:
3395 uidpool.CheckUidPool(self.op.uid_pool)
3397 if self.op.add_uids:
3398 uidpool.CheckUidPool(self.op.add_uids)
3400 if self.op.remove_uids:
3401 uidpool.CheckUidPool(self.op.remove_uids)
3403 def ExpandNames(self):
3404 # FIXME: in the future maybe other cluster params won't require checking on
3405 # all nodes to be modified.
3406 self.needed_locks = {
3407 locking.LEVEL_NODE: locking.ALL_SET,
3409 self.share_locks[locking.LEVEL_NODE] = 1
3411 def BuildHooksEnv(self):
3416 "OP_TARGET": self.cfg.GetClusterName(),
3417 "NEW_VG_NAME": self.op.vg_name,
3420 def BuildHooksNodes(self):
3421 """Build hooks nodes.
3424 mn = self.cfg.GetMasterNode()
3427 def CheckPrereq(self):
3428 """Check prerequisites.
3430 This checks whether the given params don't conflict and
3431 if the given volume group is valid.
3434 if self.op.vg_name is not None and not self.op.vg_name:
3435 if self.cfg.HasAnyDiskOfType(constants.LD_LV):
3436 raise errors.OpPrereqError("Cannot disable lvm storage while lvm-based"
3437 " instances exist", errors.ECODE_INVAL)
3439 if self.op.drbd_helper is not None and not self.op.drbd_helper:
3440 if self.cfg.HasAnyDiskOfType(constants.LD_DRBD8):
3441 raise errors.OpPrereqError("Cannot disable drbd helper while"
3442 " drbd-based instances exist",
3445 node_list = self.owned_locks(locking.LEVEL_NODE)
3447 # if vg_name not None, checks given volume group on all nodes
3449 vglist = self.rpc.call_vg_list(node_list)
3450 for node in node_list:
3451 msg = vglist[node].fail_msg
3453 # ignoring down node
3454 self.LogWarning("Error while gathering data on node %s"
3455 " (ignoring node): %s", node, msg)
3457 vgstatus = utils.CheckVolumeGroupSize(vglist[node].payload,
3459 constants.MIN_VG_SIZE)
3461 raise errors.OpPrereqError("Error on node '%s': %s" %
3462 (node, vgstatus), errors.ECODE_ENVIRON)
3464 if self.op.drbd_helper:
3465 # checks given drbd helper on all nodes
3466 helpers = self.rpc.call_drbd_helper(node_list)
3467 for (node, ninfo) in self.cfg.GetMultiNodeInfo(node_list):
3469 self.LogInfo("Not checking drbd helper on offline node %s", node)
3471 msg = helpers[node].fail_msg
3473 raise errors.OpPrereqError("Error checking drbd helper on node"
3474 " '%s': %s" % (node, msg),
3475 errors.ECODE_ENVIRON)
3476 node_helper = helpers[node].payload
3477 if node_helper != self.op.drbd_helper:
3478 raise errors.OpPrereqError("Error on node '%s': drbd helper is %s" %
3479 (node, node_helper), errors.ECODE_ENVIRON)
3481 self.cluster = cluster = self.cfg.GetClusterInfo()
3482 # validate params changes
3483 if self.op.beparams:
3484 utils.ForceDictType(self.op.beparams, constants.BES_PARAMETER_TYPES)
3485 self.new_beparams = cluster.SimpleFillBE(self.op.beparams)
3487 if self.op.ndparams:
3488 utils.ForceDictType(self.op.ndparams, constants.NDS_PARAMETER_TYPES)
3489 self.new_ndparams = cluster.SimpleFillND(self.op.ndparams)
3491 # TODO: we need a more general way to handle resetting
3492 # cluster-level parameters to default values
3493 if self.new_ndparams["oob_program"] == "":
3494 self.new_ndparams["oob_program"] = \
3495 constants.NDC_DEFAULTS[constants.ND_OOB_PROGRAM]
3497 if self.op.nicparams:
3498 utils.ForceDictType(self.op.nicparams, constants.NICS_PARAMETER_TYPES)
3499 self.new_nicparams = cluster.SimpleFillNIC(self.op.nicparams)
3500 objects.NIC.CheckParameterSyntax(self.new_nicparams)
3503 # check all instances for consistency
3504 for instance in self.cfg.GetAllInstancesInfo().values():
3505 for nic_idx, nic in enumerate(instance.nics):
3506 params_copy = copy.deepcopy(nic.nicparams)
3507 params_filled = objects.FillDict(self.new_nicparams, params_copy)
3509 # check parameter syntax
3511 objects.NIC.CheckParameterSyntax(params_filled)
3512 except errors.ConfigurationError, err:
3513 nic_errors.append("Instance %s, nic/%d: %s" %
3514 (instance.name, nic_idx, err))
3516 # if we're moving instances to routed, check that they have an ip
3517 target_mode = params_filled[constants.NIC_MODE]
3518 if target_mode == constants.NIC_MODE_ROUTED and not nic.ip:
3519 nic_errors.append("Instance %s, nic/%d: routed NIC with no ip"
3520 " address" % (instance.name, nic_idx))
3522 raise errors.OpPrereqError("Cannot apply the change, errors:\n%s" %
3523 "\n".join(nic_errors))
3525 # hypervisor list/parameters
3526 self.new_hvparams = new_hvp = objects.FillDict(cluster.hvparams, {})
3527 if self.op.hvparams:
3528 for hv_name, hv_dict in self.op.hvparams.items():
3529 if hv_name not in self.new_hvparams:
3530 self.new_hvparams[hv_name] = hv_dict
3532 self.new_hvparams[hv_name].update(hv_dict)
3534 # os hypervisor parameters
3535 self.new_os_hvp = objects.FillDict(cluster.os_hvp, {})
3537 for os_name, hvs in self.op.os_hvp.items():
3538 if os_name not in self.new_os_hvp:
3539 self.new_os_hvp[os_name] = hvs
3541 for hv_name, hv_dict in hvs.items():
3542 if hv_name not in self.new_os_hvp[os_name]:
3543 self.new_os_hvp[os_name][hv_name] = hv_dict
3545 self.new_os_hvp[os_name][hv_name].update(hv_dict)
3548 self.new_osp = objects.FillDict(cluster.osparams, {})
3549 if self.op.osparams:
3550 for os_name, osp in self.op.osparams.items():
3551 if os_name not in self.new_osp:
3552 self.new_osp[os_name] = {}
3554 self.new_osp[os_name] = _GetUpdatedParams(self.new_osp[os_name], osp,
3557 if not self.new_osp[os_name]:
3558 # we removed all parameters
3559 del self.new_osp[os_name]
3561 # check the parameter validity (remote check)
3562 _CheckOSParams(self, False, [self.cfg.GetMasterNode()],
3563 os_name, self.new_osp[os_name])
3565 # changes to the hypervisor list
3566 if self.op.enabled_hypervisors is not None:
3567 self.hv_list = self.op.enabled_hypervisors
3568 for hv in self.hv_list:
3569 # if the hypervisor doesn't already exist in the cluster
3570 # hvparams, we initialize it to empty, and then (in both
3571 # cases) we make sure to fill the defaults, as we might not
3572 # have a complete defaults list if the hypervisor wasn't
3574 if hv not in new_hvp:
3576 new_hvp[hv] = objects.FillDict(constants.HVC_DEFAULTS[hv], new_hvp[hv])
3577 utils.ForceDictType(new_hvp[hv], constants.HVS_PARAMETER_TYPES)
3579 self.hv_list = cluster.enabled_hypervisors
3581 if self.op.hvparams or self.op.enabled_hypervisors is not None:
3582 # either the enabled list has changed, or the parameters have, validate
3583 for hv_name, hv_params in self.new_hvparams.items():
3584 if ((self.op.hvparams and hv_name in self.op.hvparams) or
3585 (self.op.enabled_hypervisors and
3586 hv_name in self.op.enabled_hypervisors)):
3587 # either this is a new hypervisor, or its parameters have changed
3588 hv_class = hypervisor.GetHypervisor(hv_name)
3589 utils.ForceDictType(hv_params, constants.HVS_PARAMETER_TYPES)
3590 hv_class.CheckParameterSyntax(hv_params)
3591 _CheckHVParams(self, node_list, hv_name, hv_params)
3594 # no need to check any newly-enabled hypervisors, since the
3595 # defaults have already been checked in the above code-block
3596 for os_name, os_hvp in self.new_os_hvp.items():
3597 for hv_name, hv_params in os_hvp.items():
3598 utils.ForceDictType(hv_params, constants.HVS_PARAMETER_TYPES)
3599 # we need to fill in the new os_hvp on top of the actual hv_p
3600 cluster_defaults = self.new_hvparams.get(hv_name, {})
3601 new_osp = objects.FillDict(cluster_defaults, hv_params)
3602 hv_class = hypervisor.GetHypervisor(hv_name)
3603 hv_class.CheckParameterSyntax(new_osp)
3604 _CheckHVParams(self, node_list, hv_name, new_osp)
3606 if self.op.default_iallocator:
3607 alloc_script = utils.FindFile(self.op.default_iallocator,
3608 constants.IALLOCATOR_SEARCH_PATH,
3610 if alloc_script is None:
3611 raise errors.OpPrereqError("Invalid default iallocator script '%s'"
3612 " specified" % self.op.default_iallocator,
3615 def Exec(self, feedback_fn):
3616 """Change the parameters of the cluster.
3619 if self.op.vg_name is not None:
3620 new_volume = self.op.vg_name
3623 if new_volume != self.cfg.GetVGName():
3624 self.cfg.SetVGName(new_volume)
3626 feedback_fn("Cluster LVM configuration already in desired"
3627 " state, not changing")
3628 if self.op.drbd_helper is not None:
3629 new_helper = self.op.drbd_helper
3632 if new_helper != self.cfg.GetDRBDHelper():
3633 self.cfg.SetDRBDHelper(new_helper)
3635 feedback_fn("Cluster DRBD helper already in desired state,"
3637 if self.op.hvparams:
3638 self.cluster.hvparams = self.new_hvparams
3640 self.cluster.os_hvp = self.new_os_hvp
3641 if self.op.enabled_hypervisors is not None:
3642 self.cluster.hvparams = self.new_hvparams
3643 self.cluster.enabled_hypervisors = self.op.enabled_hypervisors
3644 if self.op.beparams:
3645 self.cluster.beparams[constants.PP_DEFAULT] = self.new_beparams
3646 if self.op.nicparams:
3647 self.cluster.nicparams[constants.PP_DEFAULT] = self.new_nicparams
3648 if self.op.osparams:
3649 self.cluster.osparams = self.new_osp
3650 if self.op.ndparams:
3651 self.cluster.ndparams = self.new_ndparams
3653 if self.op.candidate_pool_size is not None:
3654 self.cluster.candidate_pool_size = self.op.candidate_pool_size
3655 # we need to update the pool size here, otherwise the save will fail
3656 _AdjustCandidatePool(self, [])
3658 if self.op.maintain_node_health is not None:
3659 self.cluster.maintain_node_health = self.op.maintain_node_health
3661 if self.op.prealloc_wipe_disks is not None:
3662 self.cluster.prealloc_wipe_disks = self.op.prealloc_wipe_disks
3664 if self.op.add_uids is not None:
3665 uidpool.AddToUidPool(self.cluster.uid_pool, self.op.add_uids)
3667 if self.op.remove_uids is not None:
3668 uidpool.RemoveFromUidPool(self.cluster.uid_pool, self.op.remove_uids)
3670 if self.op.uid_pool is not None:
3671 self.cluster.uid_pool = self.op.uid_pool
3673 if self.op.default_iallocator is not None:
3674 self.cluster.default_iallocator = self.op.default_iallocator
3676 if self.op.reserved_lvs is not None:
3677 self.cluster.reserved_lvs = self.op.reserved_lvs
3679 def helper_os(aname, mods, desc):
3681 lst = getattr(self.cluster, aname)
3682 for key, val in mods:
3683 if key == constants.DDM_ADD:
3685 feedback_fn("OS %s already in %s, ignoring" % (val, desc))
3688 elif key == constants.DDM_REMOVE:
3692 feedback_fn("OS %s not found in %s, ignoring" % (val, desc))
3694 raise errors.ProgrammerError("Invalid modification '%s'" % key)
3696 if self.op.hidden_os:
3697 helper_os("hidden_os", self.op.hidden_os, "hidden")
3699 if self.op.blacklisted_os:
3700 helper_os("blacklisted_os", self.op.blacklisted_os, "blacklisted")
3702 if self.op.master_netdev:
3703 master = self.cfg.GetMasterNode()
3704 feedback_fn("Shutting down master ip on the current netdev (%s)" %
3705 self.cluster.master_netdev)
3706 result = self.rpc.call_node_stop_master(master, False)
3707 result.Raise("Could not disable the master ip")
3708 feedback_fn("Changing master_netdev from %s to %s" %
3709 (self.cluster.master_netdev, self.op.master_netdev))
3710 self.cluster.master_netdev = self.op.master_netdev
3712 self.cfg.Update(self.cluster, feedback_fn)
3714 if self.op.master_netdev:
3715 feedback_fn("Starting the master ip on the new master netdev (%s)" %
3716 self.op.master_netdev)
3717 result = self.rpc.call_node_start_master(master, False, False)
3719 self.LogWarning("Could not re-enable the master ip on"
3720 " the master, please restart manually: %s",
3724 def _UploadHelper(lu, nodes, fname):
3725 """Helper for uploading a file and showing warnings.
3728 if os.path.exists(fname):
3729 result = lu.rpc.call_upload_file(nodes, fname)
3730 for to_node, to_result in result.items():
3731 msg = to_result.fail_msg
3733 msg = ("Copy of file %s to node %s failed: %s" %
3734 (fname, to_node, msg))
3735 lu.proc.LogWarning(msg)
3738 def _ComputeAncillaryFiles(cluster, redist):
3739 """Compute files external to Ganeti which need to be consistent.
3741 @type redist: boolean
3742 @param redist: Whether to include files which need to be redistributed
3745 # Compute files for all nodes
3747 constants.SSH_KNOWN_HOSTS_FILE,
3748 constants.CONFD_HMAC_KEY,
3749 constants.CLUSTER_DOMAIN_SECRET_FILE,
3753 files_all.update(constants.ALL_CERT_FILES)
3754 files_all.update(ssconf.SimpleStore().GetFileList())
3756 # we need to ship at least the RAPI certificate
3757 files_all.add(constants.RAPI_CERT_FILE)
3759 if cluster.modify_etc_hosts:
3760 files_all.add(constants.ETC_HOSTS)
3762 # Files which must either exist on all nodes or on none
3763 files_all_opt = set([
3764 constants.RAPI_USERS_FILE,
3767 # Files which should only be on master candidates
3770 files_mc.add(constants.CLUSTER_CONF_FILE)
3772 # Files which should only be on VM-capable nodes
3773 files_vm = set(filename
3774 for hv_name in cluster.enabled_hypervisors
3775 for filename in hypervisor.GetHypervisor(hv_name).GetAncillaryFiles())
3777 # Filenames must be unique
3778 assert (len(files_all | files_all_opt | files_mc | files_vm) ==
3779 sum(map(len, [files_all, files_all_opt, files_mc, files_vm]))), \
3780 "Found file listed in more than one file list"
3782 return (files_all, files_all_opt, files_mc, files_vm)
3785 def _RedistributeAncillaryFiles(lu, additional_nodes=None, additional_vm=True):
3786 """Distribute additional files which are part of the cluster configuration.
3788 ConfigWriter takes care of distributing the config and ssconf files, but
3789 there are more files which should be distributed to all nodes. This function
3790 makes sure those are copied.
3792 @param lu: calling logical unit
3793 @param additional_nodes: list of nodes not in the config to distribute to
3794 @type additional_vm: boolean
3795 @param additional_vm: whether the additional nodes are vm-capable or not
3798 # Gather target nodes
3799 cluster = lu.cfg.GetClusterInfo()
3800 master_info = lu.cfg.GetNodeInfo(lu.cfg.GetMasterNode())
3802 online_nodes = lu.cfg.GetOnlineNodeList()
3803 vm_nodes = lu.cfg.GetVmCapableNodeList()
3805 if additional_nodes is not None:
3806 online_nodes.extend(additional_nodes)
3808 vm_nodes.extend(additional_nodes)
3810 # Never distribute to master node
3811 for nodelist in [online_nodes, vm_nodes]:
3812 if master_info.name in nodelist:
3813 nodelist.remove(master_info.name)
3816 (files_all, files_all_opt, files_mc, files_vm) = \
3817 _ComputeAncillaryFiles(cluster, True)
3819 # Never re-distribute configuration file from here
3820 assert not (constants.CLUSTER_CONF_FILE in files_all or
3821 constants.CLUSTER_CONF_FILE in files_vm)
3822 assert not files_mc, "Master candidates not handled in this function"
3825 (online_nodes, files_all),
3826 (online_nodes, files_all_opt),
3827 (vm_nodes, files_vm),
3831 for (node_list, files) in filemap:
3833 _UploadHelper(lu, node_list, fname)
3836 class LUClusterRedistConf(NoHooksLU):
3837 """Force the redistribution of cluster configuration.
3839 This is a very simple LU.
3844 def ExpandNames(self):
3845 self.needed_locks = {
3846 locking.LEVEL_NODE: locking.ALL_SET,
3848 self.share_locks[locking.LEVEL_NODE] = 1
3850 def Exec(self, feedback_fn):
3851 """Redistribute the configuration.
3854 self.cfg.Update(self.cfg.GetClusterInfo(), feedback_fn)
3855 _RedistributeAncillaryFiles(self)
3858 def _WaitForSync(lu, instance, disks=None, oneshot=False):
3859 """Sleep and poll for an instance's disk to sync.
3862 if not instance.disks or disks is not None and not disks:
3865 disks = _ExpandCheckDisks(instance, disks)
3868 lu.proc.LogInfo("Waiting for instance %s to sync disks." % instance.name)
3870 node = instance.primary_node
3873 lu.cfg.SetDiskID(dev, node)
3875 # TODO: Convert to utils.Retry
3878 degr_retries = 10 # in seconds, as we sleep 1 second each time
3882 cumul_degraded = False
3883 rstats = lu.rpc.call_blockdev_getmirrorstatus(node, disks)
3884 msg = rstats.fail_msg
3886 lu.LogWarning("Can't get any data from node %s: %s", node, msg)
3889 raise errors.RemoteError("Can't contact node %s for mirror data,"
3890 " aborting." % node)
3893 rstats = rstats.payload
3895 for i, mstat in enumerate(rstats):
3897 lu.LogWarning("Can't compute data for node %s/%s",
3898 node, disks[i].iv_name)
3901 cumul_degraded = (cumul_degraded or
3902 (mstat.is_degraded and mstat.sync_percent is None))
3903 if mstat.sync_percent is not None:
3905 if mstat.estimated_time is not None:
3906 rem_time = ("%s remaining (estimated)" %
3907 utils.FormatSeconds(mstat.estimated_time))
3908 max_time = mstat.estimated_time
3910 rem_time = "no time estimate"
3911 lu.proc.LogInfo("- device %s: %5.2f%% done, %s" %
3912 (disks[i].iv_name, mstat.sync_percent, rem_time))
3914 # if we're done but degraded, let's do a few small retries, to
3915 # make sure we see a stable and not transient situation; therefore
3916 # we force restart of the loop
3917 if (done or oneshot) and cumul_degraded and degr_retries > 0:
3918 logging.info("Degraded disks found, %d retries left", degr_retries)
3926 time.sleep(min(60, max_time))
3929 lu.proc.LogInfo("Instance %s's disks are in sync." % instance.name)
3930 return not cumul_degraded
3933 def _CheckDiskConsistency(lu, dev, node, on_primary, ldisk=False):
3934 """Check that mirrors are not degraded.
3936 The ldisk parameter, if True, will change the test from the
3937 is_degraded attribute (which represents overall non-ok status for
3938 the device(s)) to the ldisk (representing the local storage status).
3941 lu.cfg.SetDiskID(dev, node)
3945 if on_primary or dev.AssembleOnSecondary():
3946 rstats = lu.rpc.call_blockdev_find(node, dev)
3947 msg = rstats.fail_msg
3949 lu.LogWarning("Can't find disk on node %s: %s", node, msg)
3951 elif not rstats.payload:
3952 lu.LogWarning("Can't find disk on node %s", node)
3956 result = result and rstats.payload.ldisk_status == constants.LDS_OKAY
3958 result = result and not rstats.payload.is_degraded
3961 for child in dev.children:
3962 result = result and _CheckDiskConsistency(lu, child, node, on_primary)
3967 class LUOobCommand(NoHooksLU):
3968 """Logical unit for OOB handling.
3972 _SKIP_MASTER = (constants.OOB_POWER_OFF, constants.OOB_POWER_CYCLE)
3974 def ExpandNames(self):
3975 """Gather locks we need.
3978 if self.op.node_names:
3979 self.op.node_names = _GetWantedNodes(self, self.op.node_names)
3980 lock_names = self.op.node_names
3982 lock_names = locking.ALL_SET
3984 self.needed_locks = {
3985 locking.LEVEL_NODE: lock_names,
3988 def CheckPrereq(self):
3989 """Check prerequisites.
3992 - the node exists in the configuration
3995 Any errors are signaled by raising errors.OpPrereqError.
3999 self.master_node = self.cfg.GetMasterNode()
4001 assert self.op.power_delay >= 0.0
4003 if self.op.node_names:
4004 if (self.op.command in self._SKIP_MASTER and
4005 self.master_node in self.op.node_names):
4006 master_node_obj = self.cfg.GetNodeInfo(self.master_node)
4007 master_oob_handler = _SupportsOob(self.cfg, master_node_obj)
4009 if master_oob_handler:
4010 additional_text = ("run '%s %s %s' if you want to operate on the"
4011 " master regardless") % (master_oob_handler,
4015 additional_text = "it does not support out-of-band operations"
4017 raise errors.OpPrereqError(("Operating on the master node %s is not"
4018 " allowed for %s; %s") %
4019 (self.master_node, self.op.command,
4020 additional_text), errors.ECODE_INVAL)
4022 self.op.node_names = self.cfg.GetNodeList()
4023 if self.op.command in self._SKIP_MASTER:
4024 self.op.node_names.remove(self.master_node)
4026 if self.op.command in self._SKIP_MASTER:
4027 assert self.master_node not in self.op.node_names
4029 for (node_name, node) in self.cfg.GetMultiNodeInfo(self.op.node_names):
4031 raise errors.OpPrereqError("Node %s not found" % node_name,
4034 self.nodes.append(node)
4036 if (not self.op.ignore_status and
4037 (self.op.command == constants.OOB_POWER_OFF and not node.offline)):
4038 raise errors.OpPrereqError(("Cannot power off node %s because it is"
4039 " not marked offline") % node_name,
4042 def Exec(self, feedback_fn):
4043 """Execute OOB and return result if we expect any.
4046 master_node = self.master_node
4049 for idx, node in enumerate(utils.NiceSort(self.nodes,
4050 key=lambda node: node.name)):
4051 node_entry = [(constants.RS_NORMAL, node.name)]
4052 ret.append(node_entry)
4054 oob_program = _SupportsOob(self.cfg, node)
4057 node_entry.append((constants.RS_UNAVAIL, None))
4060 logging.info("Executing out-of-band command '%s' using '%s' on %s",
4061 self.op.command, oob_program, node.name)
4062 result = self.rpc.call_run_oob(master_node, oob_program,
4063 self.op.command, node.name,
4067 self.LogWarning("Out-of-band RPC failed on node '%s': %s",
4068 node.name, result.fail_msg)
4069 node_entry.append((constants.RS_NODATA, None))
4072 self._CheckPayload(result)
4073 except errors.OpExecError, err:
4074 self.LogWarning("Payload returned by node '%s' is not valid: %s",
4076 node_entry.append((constants.RS_NODATA, None))
4078 if self.op.command == constants.OOB_HEALTH:
4079 # For health we should log important events
4080 for item, status in result.payload:
4081 if status in [constants.OOB_STATUS_WARNING,
4082 constants.OOB_STATUS_CRITICAL]:
4083 self.LogWarning("Item '%s' on node '%s' has status '%s'",
4084 item, node.name, status)
4086 if self.op.command == constants.OOB_POWER_ON:
4088 elif self.op.command == constants.OOB_POWER_OFF:
4089 node.powered = False
4090 elif self.op.command == constants.OOB_POWER_STATUS:
4091 powered = result.payload[constants.OOB_POWER_STATUS_POWERED]
4092 if powered != node.powered:
4093 logging.warning(("Recorded power state (%s) of node '%s' does not"
4094 " match actual power state (%s)"), node.powered,
4097 # For configuration changing commands we should update the node
4098 if self.op.command in (constants.OOB_POWER_ON,
4099 constants.OOB_POWER_OFF):
4100 self.cfg.Update(node, feedback_fn)
4102 node_entry.append((constants.RS_NORMAL, result.payload))
4104 if (self.op.command == constants.OOB_POWER_ON and
4105 idx < len(self.nodes) - 1):
4106 time.sleep(self.op.power_delay)
4110 def _CheckPayload(self, result):
4111 """Checks if the payload is valid.
4113 @param result: RPC result
4114 @raises errors.OpExecError: If payload is not valid
4118 if self.op.command == constants.OOB_HEALTH:
4119 if not isinstance(result.payload, list):
4120 errs.append("command 'health' is expected to return a list but got %s" %
4121 type(result.payload))
4123 for item, status in result.payload:
4124 if status not in constants.OOB_STATUSES:
4125 errs.append("health item '%s' has invalid status '%s'" %
4128 if self.op.command == constants.OOB_POWER_STATUS:
4129 if not isinstance(result.payload, dict):
4130 errs.append("power-status is expected to return a dict but got %s" %
4131 type(result.payload))
4133 if self.op.command in [
4134 constants.OOB_POWER_ON,
4135 constants.OOB_POWER_OFF,
4136 constants.OOB_POWER_CYCLE,
4138 if result.payload is not None:
4139 errs.append("%s is expected to not return payload but got '%s'" %
4140 (self.op.command, result.payload))
4143 raise errors.OpExecError("Check of out-of-band payload failed due to %s" %
4144 utils.CommaJoin(errs))
4147 class _OsQuery(_QueryBase):
4148 FIELDS = query.OS_FIELDS
4150 def ExpandNames(self, lu):
4151 # Lock all nodes in shared mode
4152 # Temporary removal of locks, should be reverted later
4153 # TODO: reintroduce locks when they are lighter-weight
4154 lu.needed_locks = {}
4155 #self.share_locks[locking.LEVEL_NODE] = 1
4156 #self.needed_locks[locking.LEVEL_NODE] = locking.ALL_SET
4158 # The following variables interact with _QueryBase._GetNames
4160 self.wanted = self.names
4162 self.wanted = locking.ALL_SET
4164 self.do_locking = self.use_locking
4166 def DeclareLocks(self, lu, level):
4170 def _DiagnoseByOS(rlist):
4171 """Remaps a per-node return list into an a per-os per-node dictionary
4173 @param rlist: a map with node names as keys and OS objects as values
4176 @return: a dictionary with osnames as keys and as value another
4177 map, with nodes as keys and tuples of (path, status, diagnose,
4178 variants, parameters, api_versions) as values, eg::
4180 {"debian-etch": {"node1": [(/usr/lib/..., True, "", [], []),
4181 (/srv/..., False, "invalid api")],
4182 "node2": [(/srv/..., True, "", [], [])]}
4187 # we build here the list of nodes that didn't fail the RPC (at RPC
4188 # level), so that nodes with a non-responding node daemon don't
4189 # make all OSes invalid
4190 good_nodes = [node_name for node_name in rlist
4191 if not rlist[node_name].fail_msg]
4192 for node_name, nr in rlist.items():
4193 if nr.fail_msg or not nr.payload:
4195 for (name, path, status, diagnose, variants,
4196 params, api_versions) in nr.payload:
4197 if name not in all_os:
4198 # build a list of nodes for this os containing empty lists
4199 # for each node in node_list
4201 for nname in good_nodes:
4202 all_os[name][nname] = []
4203 # convert params from [name, help] to (name, help)
4204 params = [tuple(v) for v in params]
4205 all_os[name][node_name].append((path, status, diagnose,
4206 variants, params, api_versions))
4209 def _GetQueryData(self, lu):
4210 """Computes the list of nodes and their attributes.
4213 # Locking is not used
4214 assert not (compat.any(lu.glm.is_owned(level)
4215 for level in locking.LEVELS
4216 if level != locking.LEVEL_CLUSTER) or
4217 self.do_locking or self.use_locking)
4219 valid_nodes = [node.name
4220 for node in lu.cfg.GetAllNodesInfo().values()
4221 if not node.offline and node.vm_capable]
4222 pol = self._DiagnoseByOS(lu.rpc.call_os_diagnose(valid_nodes))
4223 cluster = lu.cfg.GetClusterInfo()
4227 for (os_name, os_data) in pol.items():
4228 info = query.OsInfo(name=os_name, valid=True, node_status=os_data,
4229 hidden=(os_name in cluster.hidden_os),
4230 blacklisted=(os_name in cluster.blacklisted_os))
4234 api_versions = set()
4236 for idx, osl in enumerate(os_data.values()):
4237 info.valid = bool(info.valid and osl and osl[0][1])
4241 (node_variants, node_params, node_api) = osl[0][3:6]
4244 variants.update(node_variants)
4245 parameters.update(node_params)
4246 api_versions.update(node_api)
4248 # Filter out inconsistent values
4249 variants.intersection_update(node_variants)
4250 parameters.intersection_update(node_params)
4251 api_versions.intersection_update(node_api)
4253 info.variants = list(variants)
4254 info.parameters = list(parameters)
4255 info.api_versions = list(api_versions)
4257 data[os_name] = info
4259 # Prepare data in requested order
4260 return [data[name] for name in self._GetNames(lu, pol.keys(), None)
4264 class LUOsDiagnose(NoHooksLU):
4265 """Logical unit for OS diagnose/query.
4271 def _BuildFilter(fields, names):
4272 """Builds a filter for querying OSes.
4275 name_filter = qlang.MakeSimpleFilter("name", names)
4277 # Legacy behaviour: Hide hidden, blacklisted or invalid OSes if the
4278 # respective field is not requested
4279 status_filter = [[qlang.OP_NOT, [qlang.OP_TRUE, fname]]
4280 for fname in ["hidden", "blacklisted"]
4281 if fname not in fields]
4282 if "valid" not in fields:
4283 status_filter.append([qlang.OP_TRUE, "valid"])
4286 status_filter.insert(0, qlang.OP_AND)
4288 status_filter = None
4290 if name_filter and status_filter:
4291 return [qlang.OP_AND, name_filter, status_filter]
4295 return status_filter
4297 def CheckArguments(self):
4298 self.oq = _OsQuery(self._BuildFilter(self.op.output_fields, self.op.names),
4299 self.op.output_fields, False)
4301 def ExpandNames(self):
4302 self.oq.ExpandNames(self)
4304 def Exec(self, feedback_fn):
4305 return self.oq.OldStyleQuery(self)
4308 class LUNodeRemove(LogicalUnit):
4309 """Logical unit for removing a node.
4312 HPATH = "node-remove"
4313 HTYPE = constants.HTYPE_NODE
4315 def BuildHooksEnv(self):
4318 This doesn't run on the target node in the pre phase as a failed
4319 node would then be impossible to remove.
4323 "OP_TARGET": self.op.node_name,
4324 "NODE_NAME": self.op.node_name,
4327 def BuildHooksNodes(self):
4328 """Build hooks nodes.
4331 all_nodes = self.cfg.GetNodeList()
4333 all_nodes.remove(self.op.node_name)
4335 logging.warning("Node '%s', which is about to be removed, was not found"
4336 " in the list of all nodes", self.op.node_name)
4337 return (all_nodes, all_nodes)
4339 def CheckPrereq(self):
4340 """Check prerequisites.
4343 - the node exists in the configuration
4344 - it does not have primary or secondary instances
4345 - it's not the master
4347 Any errors are signaled by raising errors.OpPrereqError.
4350 self.op.node_name = _ExpandNodeName(self.cfg, self.op.node_name)
4351 node = self.cfg.GetNodeInfo(self.op.node_name)
4352 assert node is not None
4354 masternode = self.cfg.GetMasterNode()
4355 if node.name == masternode:
4356 raise errors.OpPrereqError("Node is the master node, failover to another"
4357 " node is required", errors.ECODE_INVAL)
4359 for instance_name, instance in self.cfg.GetAllInstancesInfo().items():
4360 if node.name in instance.all_nodes:
4361 raise errors.OpPrereqError("Instance %s is still running on the node,"
4362 " please remove first" % instance_name,
4364 self.op.node_name = node.name
4367 def Exec(self, feedback_fn):
4368 """Removes the node from the cluster.
4372 logging.info("Stopping the node daemon and removing configs from node %s",
4375 modify_ssh_setup = self.cfg.GetClusterInfo().modify_ssh_setup
4377 # Promote nodes to master candidate as needed
4378 _AdjustCandidatePool(self, exceptions=[node.name])
4379 self.context.RemoveNode(node.name)
4381 # Run post hooks on the node before it's removed
4382 _RunPostHook(self, node.name)
4384 result = self.rpc.call_node_leave_cluster(node.name, modify_ssh_setup)
4385 msg = result.fail_msg
4387 self.LogWarning("Errors encountered on the remote node while leaving"
4388 " the cluster: %s", msg)
4390 # Remove node from our /etc/hosts
4391 if self.cfg.GetClusterInfo().modify_etc_hosts:
4392 master_node = self.cfg.GetMasterNode()
4393 result = self.rpc.call_etc_hosts_modify(master_node,
4394 constants.ETC_HOSTS_REMOVE,
4396 result.Raise("Can't update hosts file with new host data")
4397 _RedistributeAncillaryFiles(self)
4400 class _NodeQuery(_QueryBase):
4401 FIELDS = query.NODE_FIELDS
4403 def ExpandNames(self, lu):
4404 lu.needed_locks = {}
4405 lu.share_locks = _ShareAll()
4408 self.wanted = _GetWantedNodes(lu, self.names)
4410 self.wanted = locking.ALL_SET
4412 self.do_locking = (self.use_locking and
4413 query.NQ_LIVE in self.requested_data)
4416 # If any non-static field is requested we need to lock the nodes
4417 lu.needed_locks[locking.LEVEL_NODE] = self.wanted
4419 def DeclareLocks(self, lu, level):
4422 def _GetQueryData(self, lu):
4423 """Computes the list of nodes and their attributes.
4426 all_info = lu.cfg.GetAllNodesInfo()
4428 nodenames = self._GetNames(lu, all_info.keys(), locking.LEVEL_NODE)
4430 # Gather data as requested
4431 if query.NQ_LIVE in self.requested_data:
4432 # filter out non-vm_capable nodes
4433 toquery_nodes = [name for name in nodenames if all_info[name].vm_capable]
4435 node_data = lu.rpc.call_node_info(toquery_nodes, lu.cfg.GetVGName(),
4436 lu.cfg.GetHypervisorType())
4437 live_data = dict((name, nresult.payload)
4438 for (name, nresult) in node_data.items()
4439 if not nresult.fail_msg and nresult.payload)
4443 if query.NQ_INST in self.requested_data:
4444 node_to_primary = dict([(name, set()) for name in nodenames])
4445 node_to_secondary = dict([(name, set()) for name in nodenames])
4447 inst_data = lu.cfg.GetAllInstancesInfo()
4449 for inst in inst_data.values():
4450 if inst.primary_node in node_to_primary:
4451 node_to_primary[inst.primary_node].add(inst.name)
4452 for secnode in inst.secondary_nodes:
4453 if secnode in node_to_secondary:
4454 node_to_secondary[secnode].add(inst.name)
4456 node_to_primary = None
4457 node_to_secondary = None
4459 if query.NQ_OOB in self.requested_data:
4460 oob_support = dict((name, bool(_SupportsOob(lu.cfg, node)))
4461 for name, node in all_info.iteritems())
4465 if query.NQ_GROUP in self.requested_data:
4466 groups = lu.cfg.GetAllNodeGroupsInfo()
4470 return query.NodeQueryData([all_info[name] for name in nodenames],
4471 live_data, lu.cfg.GetMasterNode(),
4472 node_to_primary, node_to_secondary, groups,
4473 oob_support, lu.cfg.GetClusterInfo())
4476 class LUNodeQuery(NoHooksLU):
4477 """Logical unit for querying nodes.
4480 # pylint: disable=W0142
4483 def CheckArguments(self):
4484 self.nq = _NodeQuery(qlang.MakeSimpleFilter("name", self.op.names),
4485 self.op.output_fields, self.op.use_locking)
4487 def ExpandNames(self):
4488 self.nq.ExpandNames(self)
4490 def Exec(self, feedback_fn):
4491 return self.nq.OldStyleQuery(self)
4494 class LUNodeQueryvols(NoHooksLU):
4495 """Logical unit for getting volumes on node(s).
4499 _FIELDS_DYNAMIC = utils.FieldSet("phys", "vg", "name", "size", "instance")
4500 _FIELDS_STATIC = utils.FieldSet("node")
4502 def CheckArguments(self):
4503 _CheckOutputFields(static=self._FIELDS_STATIC,
4504 dynamic=self._FIELDS_DYNAMIC,
4505 selected=self.op.output_fields)
4507 def ExpandNames(self):
4508 self.needed_locks = {}
4509 self.share_locks[locking.LEVEL_NODE] = 1
4510 if not self.op.nodes:
4511 self.needed_locks[locking.LEVEL_NODE] = locking.ALL_SET
4513 self.needed_locks[locking.LEVEL_NODE] = \
4514 _GetWantedNodes(self, self.op.nodes)
4516 def Exec(self, feedback_fn):
4517 """Computes the list of nodes and their attributes.
4520 nodenames = self.owned_locks(locking.LEVEL_NODE)
4521 volumes = self.rpc.call_node_volumes(nodenames)
4523 ilist = self.cfg.GetAllInstancesInfo()
4524 vol2inst = _MapInstanceDisksToNodes(ilist.values())
4527 for node in nodenames:
4528 nresult = volumes[node]
4531 msg = nresult.fail_msg
4533 self.LogWarning("Can't compute volume data on node %s: %s", node, msg)
4536 node_vols = sorted(nresult.payload,
4537 key=operator.itemgetter("dev"))
4539 for vol in node_vols:
4541 for field in self.op.output_fields:
4544 elif field == "phys":
4548 elif field == "name":
4550 elif field == "size":
4551 val = int(float(vol["size"]))
4552 elif field == "instance":
4553 val = vol2inst.get((node, vol["vg"] + "/" + vol["name"]), "-")
4555 raise errors.ParameterError(field)
4556 node_output.append(str(val))
4558 output.append(node_output)
4563 class LUNodeQueryStorage(NoHooksLU):
4564 """Logical unit for getting information on storage units on node(s).
4567 _FIELDS_STATIC = utils.FieldSet(constants.SF_NODE)
4570 def CheckArguments(self):
4571 _CheckOutputFields(static=self._FIELDS_STATIC,
4572 dynamic=utils.FieldSet(*constants.VALID_STORAGE_FIELDS),
4573 selected=self.op.output_fields)
4575 def ExpandNames(self):
4576 self.needed_locks = {}
4577 self.share_locks[locking.LEVEL_NODE] = 1
4580 self.needed_locks[locking.LEVEL_NODE] = \
4581 _GetWantedNodes(self, self.op.nodes)
4583 self.needed_locks[locking.LEVEL_NODE] = locking.ALL_SET
4585 def Exec(self, feedback_fn):
4586 """Computes the list of nodes and their attributes.
4589 self.nodes = self.owned_locks(locking.LEVEL_NODE)
4591 # Always get name to sort by
4592 if constants.SF_NAME in self.op.output_fields:
4593 fields = self.op.output_fields[:]
4595 fields = [constants.SF_NAME] + self.op.output_fields
4597 # Never ask for node or type as it's only known to the LU
4598 for extra in [constants.SF_NODE, constants.SF_TYPE]:
4599 while extra in fields:
4600 fields.remove(extra)
4602 field_idx = dict([(name, idx) for (idx, name) in enumerate(fields)])
4603 name_idx = field_idx[constants.SF_NAME]
4605 st_args = _GetStorageTypeArgs(self.cfg, self.op.storage_type)
4606 data = self.rpc.call_storage_list(self.nodes,
4607 self.op.storage_type, st_args,
4608 self.op.name, fields)
4612 for node in utils.NiceSort(self.nodes):
4613 nresult = data[node]
4617 msg = nresult.fail_msg
4619 self.LogWarning("Can't get storage data from node %s: %s", node, msg)
4622 rows = dict([(row[name_idx], row) for row in nresult.payload])
4624 for name in utils.NiceSort(rows.keys()):
4629 for field in self.op.output_fields:
4630 if field == constants.SF_NODE:
4632 elif field == constants.SF_TYPE:
4633 val = self.op.storage_type
4634 elif field in field_idx:
4635 val = row[field_idx[field]]
4637 raise errors.ParameterError(field)
4646 class _InstanceQuery(_QueryBase):
4647 FIELDS = query.INSTANCE_FIELDS
4649 def ExpandNames(self, lu):
4650 lu.needed_locks = {}
4651 lu.share_locks = _ShareAll()
4654 self.wanted = _GetWantedInstances(lu, self.names)
4656 self.wanted = locking.ALL_SET
4658 self.do_locking = (self.use_locking and
4659 query.IQ_LIVE in self.requested_data)
4661 lu.needed_locks[locking.LEVEL_INSTANCE] = self.wanted
4662 lu.needed_locks[locking.LEVEL_NODEGROUP] = []
4663 lu.needed_locks[locking.LEVEL_NODE] = []
4664 lu.recalculate_locks[locking.LEVEL_NODE] = constants.LOCKS_REPLACE
4666 self.do_grouplocks = (self.do_locking and
4667 query.IQ_NODES in self.requested_data)
4669 def DeclareLocks(self, lu, level):
4671 if level == locking.LEVEL_NODEGROUP and self.do_grouplocks:
4672 assert not lu.needed_locks[locking.LEVEL_NODEGROUP]
4674 # Lock all groups used by instances optimistically; this requires going
4675 # via the node before it's locked, requiring verification later on
4676 lu.needed_locks[locking.LEVEL_NODEGROUP] = \
4678 for instance_name in lu.owned_locks(locking.LEVEL_INSTANCE)
4679 for group_uuid in lu.cfg.GetInstanceNodeGroups(instance_name))
4680 elif level == locking.LEVEL_NODE:
4681 lu._LockInstancesNodes() # pylint: disable=W0212
4684 def _CheckGroupLocks(lu):
4685 owned_instances = frozenset(lu.owned_locks(locking.LEVEL_INSTANCE))
4686 owned_groups = frozenset(lu.owned_locks(locking.LEVEL_NODEGROUP))
4688 # Check if node groups for locked instances are still correct
4689 for instance_name in owned_instances:
4690 _CheckInstanceNodeGroups(lu.cfg, instance_name, owned_groups)
4692 def _GetQueryData(self, lu):
4693 """Computes the list of instances and their attributes.
4696 if self.do_grouplocks:
4697 self._CheckGroupLocks(lu)
4699 cluster = lu.cfg.GetClusterInfo()
4700 all_info = lu.cfg.GetAllInstancesInfo()
4702 instance_names = self._GetNames(lu, all_info.keys(), locking.LEVEL_INSTANCE)
4704 instance_list = [all_info[name] for name in instance_names]
4705 nodes = frozenset(itertools.chain(*(inst.all_nodes
4706 for inst in instance_list)))
4707 hv_list = list(set([inst.hypervisor for inst in instance_list]))
4710 wrongnode_inst = set()
4712 # Gather data as requested
4713 if self.requested_data & set([query.IQ_LIVE, query.IQ_CONSOLE]):
4715 node_data = lu.rpc.call_all_instances_info(nodes, hv_list)
4717 result = node_data[name]
4719 # offline nodes will be in both lists
4720 assert result.fail_msg
4721 offline_nodes.append(name)
4723 bad_nodes.append(name)
4724 elif result.payload:
4725 for inst in result.payload:
4726 if inst in all_info:
4727 if all_info[inst].primary_node == name:
4728 live_data.update(result.payload)
4730 wrongnode_inst.add(inst)
4732 # orphan instance; we don't list it here as we don't
4733 # handle this case yet in the output of instance listing
4734 logging.warning("Orphan instance '%s' found on node %s",
4736 # else no instance is alive
4740 if query.IQ_DISKUSAGE in self.requested_data:
4741 disk_usage = dict((inst.name,
4742 _ComputeDiskSize(inst.disk_template,
4743 [{constants.IDISK_SIZE: disk.size}
4744 for disk in inst.disks]))
4745 for inst in instance_list)
4749 if query.IQ_CONSOLE in self.requested_data:
4751 for inst in instance_list:
4752 if inst.name in live_data:
4753 # Instance is running
4754 consinfo[inst.name] = _GetInstanceConsole(cluster, inst)
4756 consinfo[inst.name] = None
4757 assert set(consinfo.keys()) == set(instance_names)
4761 if query.IQ_NODES in self.requested_data:
4762 node_names = set(itertools.chain(*map(operator.attrgetter("all_nodes"),
4764 nodes = dict(lu.cfg.GetMultiNodeInfo(node_names))
4765 groups = dict((uuid, lu.cfg.GetNodeGroup(uuid))
4766 for uuid in set(map(operator.attrgetter("group"),
4772 return query.InstanceQueryData(instance_list, lu.cfg.GetClusterInfo(),
4773 disk_usage, offline_nodes, bad_nodes,
4774 live_data, wrongnode_inst, consinfo,
4778 class LUQuery(NoHooksLU):
4779 """Query for resources/items of a certain kind.
4782 # pylint: disable=W0142
4785 def CheckArguments(self):
4786 qcls = _GetQueryImplementation(self.op.what)
4788 self.impl = qcls(self.op.filter, self.op.fields, self.op.use_locking)
4790 def ExpandNames(self):
4791 self.impl.ExpandNames(self)
4793 def DeclareLocks(self, level):
4794 self.impl.DeclareLocks(self, level)
4796 def Exec(self, feedback_fn):
4797 return self.impl.NewStyleQuery(self)
4800 class LUQueryFields(NoHooksLU):
4801 """Query for resources/items of a certain kind.
4804 # pylint: disable=W0142
4807 def CheckArguments(self):
4808 self.qcls = _GetQueryImplementation(self.op.what)
4810 def ExpandNames(self):
4811 self.needed_locks = {}
4813 def Exec(self, feedback_fn):
4814 return query.QueryFields(self.qcls.FIELDS, self.op.fields)
4817 class LUNodeModifyStorage(NoHooksLU):
4818 """Logical unit for modifying a storage volume on a node.
4823 def CheckArguments(self):
4824 self.op.node_name = _ExpandNodeName(self.cfg, self.op.node_name)
4826 storage_type = self.op.storage_type
4829 modifiable = constants.MODIFIABLE_STORAGE_FIELDS[storage_type]
4831 raise errors.OpPrereqError("Storage units of type '%s' can not be"
4832 " modified" % storage_type,
4835 diff = set(self.op.changes.keys()) - modifiable
4837 raise errors.OpPrereqError("The following fields can not be modified for"
4838 " storage units of type '%s': %r" %
4839 (storage_type, list(diff)),
4842 def ExpandNames(self):
4843 self.needed_locks = {
4844 locking.LEVEL_NODE: self.op.node_name,
4847 def Exec(self, feedback_fn):
4848 """Computes the list of nodes and their attributes.
4851 st_args = _GetStorageTypeArgs(self.cfg, self.op.storage_type)
4852 result = self.rpc.call_storage_modify(self.op.node_name,
4853 self.op.storage_type, st_args,
4854 self.op.name, self.op.changes)
4855 result.Raise("Failed to modify storage unit '%s' on %s" %
4856 (self.op.name, self.op.node_name))
4859 class LUNodeAdd(LogicalUnit):
4860 """Logical unit for adding node to the cluster.
4864 HTYPE = constants.HTYPE_NODE
4865 _NFLAGS = ["master_capable", "vm_capable"]
4867 def CheckArguments(self):
4868 self.primary_ip_family = self.cfg.GetPrimaryIPFamily()
4869 # validate/normalize the node name
4870 self.hostname = netutils.GetHostname(name=self.op.node_name,
4871 family=self.primary_ip_family)
4872 self.op.node_name = self.hostname.name
4874 if self.op.readd and self.op.node_name == self.cfg.GetMasterNode():
4875 raise errors.OpPrereqError("Cannot readd the master node",
4878 if self.op.readd and self.op.group:
4879 raise errors.OpPrereqError("Cannot pass a node group when a node is"
4880 " being readded", errors.ECODE_INVAL)
4882 def BuildHooksEnv(self):
4885 This will run on all nodes before, and on all nodes + the new node after.
4889 "OP_TARGET": self.op.node_name,
4890 "NODE_NAME": self.op.node_name,
4891 "NODE_PIP": self.op.primary_ip,
4892 "NODE_SIP": self.op.secondary_ip,
4893 "MASTER_CAPABLE": str(self.op.master_capable),
4894 "VM_CAPABLE": str(self.op.vm_capable),
4897 def BuildHooksNodes(self):
4898 """Build hooks nodes.
4901 # Exclude added node
4902 pre_nodes = list(set(self.cfg.GetNodeList()) - set([self.op.node_name]))
4903 post_nodes = pre_nodes + [self.op.node_name, ]
4905 return (pre_nodes, post_nodes)
4907 def CheckPrereq(self):
4908 """Check prerequisites.
4911 - the new node is not already in the config
4913 - its parameters (single/dual homed) matches the cluster
4915 Any errors are signaled by raising errors.OpPrereqError.
4919 hostname = self.hostname
4920 node = hostname.name
4921 primary_ip = self.op.primary_ip = hostname.ip
4922 if self.op.secondary_ip is None:
4923 if self.primary_ip_family == netutils.IP6Address.family:
4924 raise errors.OpPrereqError("When using a IPv6 primary address, a valid"
4925 " IPv4 address must be given as secondary",
4927 self.op.secondary_ip = primary_ip
4929 secondary_ip = self.op.secondary_ip
4930 if not netutils.IP4Address.IsValid(secondary_ip):
4931 raise errors.OpPrereqError("Secondary IP (%s) needs to be a valid IPv4"
4932 " address" % secondary_ip, errors.ECODE_INVAL)
4934 node_list = cfg.GetNodeList()
4935 if not self.op.readd and node in node_list:
4936 raise errors.OpPrereqError("Node %s is already in the configuration" %
4937 node, errors.ECODE_EXISTS)
4938 elif self.op.readd and node not in node_list:
4939 raise errors.OpPrereqError("Node %s is not in the configuration" % node,
4942 self.changed_primary_ip = False
4944 for existing_node_name, existing_node in cfg.GetMultiNodeInfo(node_list):
4945 if self.op.readd and node == existing_node_name:
4946 if existing_node.secondary_ip != secondary_ip:
4947 raise errors.OpPrereqError("Readded node doesn't have the same IP"
4948 " address configuration as before",
4950 if existing_node.primary_ip != primary_ip:
4951 self.changed_primary_ip = True
4955 if (existing_node.primary_ip == primary_ip or
4956 existing_node.secondary_ip == primary_ip or
4957 existing_node.primary_ip == secondary_ip or
4958 existing_node.secondary_ip == secondary_ip):
4959 raise errors.OpPrereqError("New node ip address(es) conflict with"
4960 " existing node %s" % existing_node.name,
4961 errors.ECODE_NOTUNIQUE)
4963 # After this 'if' block, None is no longer a valid value for the
4964 # _capable op attributes
4966 old_node = self.cfg.GetNodeInfo(node)
4967 assert old_node is not None, "Can't retrieve locked node %s" % node
4968 for attr in self._NFLAGS:
4969 if getattr(self.op, attr) is None:
4970 setattr(self.op, attr, getattr(old_node, attr))
4972 for attr in self._NFLAGS:
4973 if getattr(self.op, attr) is None:
4974 setattr(self.op, attr, True)
4976 if self.op.readd and not self.op.vm_capable:
4977 pri, sec = cfg.GetNodeInstances(node)
4979 raise errors.OpPrereqError("Node %s being re-added with vm_capable"
4980 " flag set to false, but it already holds"
4981 " instances" % node,
4984 # check that the type of the node (single versus dual homed) is the
4985 # same as for the master
4986 myself = cfg.GetNodeInfo(self.cfg.GetMasterNode())
4987 master_singlehomed = myself.secondary_ip == myself.primary_ip
4988 newbie_singlehomed = secondary_ip == primary_ip
4989 if master_singlehomed != newbie_singlehomed:
4990 if master_singlehomed:
4991 raise errors.OpPrereqError("The master has no secondary ip but the"
4992 " new node has one",
4995 raise errors.OpPrereqError("The master has a secondary ip but the"
4996 " new node doesn't have one",
4999 # checks reachability
5000 if not netutils.TcpPing(primary_ip, constants.DEFAULT_NODED_PORT):
5001 raise errors.OpPrereqError("Node not reachable by ping",
5002 errors.ECODE_ENVIRON)
5004 if not newbie_singlehomed:
5005 # check reachability from my secondary ip to newbie's secondary ip
5006 if not netutils.TcpPing(secondary_ip, constants.DEFAULT_NODED_PORT,
5007 source=myself.secondary_ip):
5008 raise errors.OpPrereqError("Node secondary ip not reachable by TCP"
5009 " based ping to node daemon port",
5010 errors.ECODE_ENVIRON)
5017 if self.op.master_capable:
5018 self.master_candidate = _DecideSelfPromotion(self, exceptions=exceptions)
5020 self.master_candidate = False
5023 self.new_node = old_node
5025 node_group = cfg.LookupNodeGroup(self.op.group)
5026 self.new_node = objects.Node(name=node,
5027 primary_ip=primary_ip,
5028 secondary_ip=secondary_ip,
5029 master_candidate=self.master_candidate,
5030 offline=False, drained=False,
5033 if self.op.ndparams:
5034 utils.ForceDictType(self.op.ndparams, constants.NDS_PARAMETER_TYPES)
5036 # check connectivity
5037 result = self.rpc.call_version([self.new_node.name])[self.new_node.name]
5038 result.Raise("Can't get version information from node %s" % node)
5039 if constants.PROTOCOL_VERSION == result.payload:
5040 logging.info("Communication to node %s fine, sw version %s match",
5041 node, result.payload)
5043 raise errors.OpPrereqError("Version mismatch master version %s,"
5044 " node version %s" %
5045 (constants.PROTOCOL_VERSION, result.payload),
5046 errors.ECODE_ENVIRON)
5048 def Exec(self, feedback_fn):
5049 """Adds the new node to the cluster.
5052 new_node = self.new_node
5053 node = new_node.name
5055 # We adding a new node so we assume it's powered
5056 new_node.powered = True
5058 # for re-adds, reset the offline/drained/master-candidate flags;
5059 # we need to reset here, otherwise offline would prevent RPC calls
5060 # later in the procedure; this also means that if the re-add
5061 # fails, we are left with a non-offlined, broken node
5063 new_node.drained = new_node.offline = False # pylint: disable=W0201
5064 self.LogInfo("Readding a node, the offline/drained flags were reset")
5065 # if we demote the node, we do cleanup later in the procedure
5066 new_node.master_candidate = self.master_candidate
5067 if self.changed_primary_ip:
5068 new_node.primary_ip = self.op.primary_ip
5070 # copy the master/vm_capable flags
5071 for attr in self._NFLAGS:
5072 setattr(new_node, attr, getattr(self.op, attr))
5074 # notify the user about any possible mc promotion
5075 if new_node.master_candidate:
5076 self.LogInfo("Node will be a master candidate")
5078 if self.op.ndparams:
5079 new_node.ndparams = self.op.ndparams
5081 new_node.ndparams = {}
5083 # Add node to our /etc/hosts, and add key to known_hosts
5084 if self.cfg.GetClusterInfo().modify_etc_hosts:
5085 master_node = self.cfg.GetMasterNode()
5086 result = self.rpc.call_etc_hosts_modify(master_node,
5087 constants.ETC_HOSTS_ADD,
5090 result.Raise("Can't update hosts file with new host data")
5092 if new_node.secondary_ip != new_node.primary_ip:
5093 _CheckNodeHasSecondaryIP(self, new_node.name, new_node.secondary_ip,
5096 node_verify_list = [self.cfg.GetMasterNode()]
5097 node_verify_param = {
5098 constants.NV_NODELIST: ([node], {}),
5099 # TODO: do a node-net-test as well?
5102 result = self.rpc.call_node_verify(node_verify_list, node_verify_param,
5103 self.cfg.GetClusterName())
5104 for verifier in node_verify_list:
5105 result[verifier].Raise("Cannot communicate with node %s" % verifier)
5106 nl_payload = result[verifier].payload[constants.NV_NODELIST]
5108 for failed in nl_payload:
5109 feedback_fn("ssh/hostname verification failed"
5110 " (checking from %s): %s" %
5111 (verifier, nl_payload[failed]))
5112 raise errors.OpExecError("ssh/hostname verification failed")
5115 _RedistributeAncillaryFiles(self)
5116 self.context.ReaddNode(new_node)
5117 # make sure we redistribute the config
5118 self.cfg.Update(new_node, feedback_fn)
5119 # and make sure the new node will not have old files around
5120 if not new_node.master_candidate:
5121 result = self.rpc.call_node_demote_from_mc(new_node.name)
5122 msg = result.fail_msg
5124 self.LogWarning("Node failed to demote itself from master"
5125 " candidate status: %s" % msg)
5127 _RedistributeAncillaryFiles(self, additional_nodes=[node],
5128 additional_vm=self.op.vm_capable)
5129 self.context.AddNode(new_node, self.proc.GetECId())
5132 class LUNodeSetParams(LogicalUnit):
5133 """Modifies the parameters of a node.
5135 @cvar _F2R: a dictionary from tuples of flags (mc, drained, offline)
5136 to the node role (as _ROLE_*)
5137 @cvar _R2F: a dictionary from node role to tuples of flags
5138 @cvar _FLAGS: a list of attribute names corresponding to the flags
5141 HPATH = "node-modify"
5142 HTYPE = constants.HTYPE_NODE
5144 (_ROLE_CANDIDATE, _ROLE_DRAINED, _ROLE_OFFLINE, _ROLE_REGULAR) = range(4)
5146 (True, False, False): _ROLE_CANDIDATE,
5147 (False, True, False): _ROLE_DRAINED,
5148 (False, False, True): _ROLE_OFFLINE,
5149 (False, False, False): _ROLE_REGULAR,
5151 _R2F = dict((v, k) for k, v in _F2R.items())
5152 _FLAGS = ["master_candidate", "drained", "offline"]
5154 def CheckArguments(self):
5155 self.op.node_name = _ExpandNodeName(self.cfg, self.op.node_name)
5156 all_mods = [self.op.offline, self.op.master_candidate, self.op.drained,
5157 self.op.master_capable, self.op.vm_capable,
5158 self.op.secondary_ip, self.op.ndparams]
5159 if all_mods.count(None) == len(all_mods):
5160 raise errors.OpPrereqError("Please pass at least one modification",
5162 if all_mods.count(True) > 1:
5163 raise errors.OpPrereqError("Can't set the node into more than one"
5164 " state at the same time",
5167 # Boolean value that tells us whether we might be demoting from MC
5168 self.might_demote = (self.op.master_candidate == False or
5169 self.op.offline == True or
5170 self.op.drained == True or
5171 self.op.master_capable == False)
5173 if self.op.secondary_ip:
5174 if not netutils.IP4Address.IsValid(self.op.secondary_ip):
5175 raise errors.OpPrereqError("Secondary IP (%s) needs to be a valid IPv4"
5176 " address" % self.op.secondary_ip,
5179 self.lock_all = self.op.auto_promote and self.might_demote
5180 self.lock_instances = self.op.secondary_ip is not None
5182 def ExpandNames(self):
5184 self.needed_locks = {locking.LEVEL_NODE: locking.ALL_SET}
5186 self.needed_locks = {locking.LEVEL_NODE: self.op.node_name}
5188 if self.lock_instances:
5189 self.needed_locks[locking.LEVEL_INSTANCE] = locking.ALL_SET
5191 def DeclareLocks(self, level):
5192 # If we have locked all instances, before waiting to lock nodes, release
5193 # all the ones living on nodes unrelated to the current operation.
5194 if level == locking.LEVEL_NODE and self.lock_instances:
5195 self.affected_instances = []
5196 if self.needed_locks[locking.LEVEL_NODE] is not locking.ALL_SET:
5199 # Build list of instances to release
5200 locked_i = self.owned_locks(locking.LEVEL_INSTANCE)
5201 for instance_name, instance in self.cfg.GetMultiInstanceInfo(locked_i):
5202 if (instance.disk_template in constants.DTS_INT_MIRROR and
5203 self.op.node_name in instance.all_nodes):
5204 instances_keep.append(instance_name)
5205 self.affected_instances.append(instance)
5207 _ReleaseLocks(self, locking.LEVEL_INSTANCE, keep=instances_keep)
5209 assert (set(self.owned_locks(locking.LEVEL_INSTANCE)) ==
5210 set(instances_keep))
5212 def BuildHooksEnv(self):
5215 This runs on the master node.
5219 "OP_TARGET": self.op.node_name,
5220 "MASTER_CANDIDATE": str(self.op.master_candidate),
5221 "OFFLINE": str(self.op.offline),
5222 "DRAINED": str(self.op.drained),
5223 "MASTER_CAPABLE": str(self.op.master_capable),
5224 "VM_CAPABLE": str(self.op.vm_capable),
5227 def BuildHooksNodes(self):
5228 """Build hooks nodes.
5231 nl = [self.cfg.GetMasterNode(), self.op.node_name]
5234 def CheckPrereq(self):
5235 """Check prerequisites.
5237 This only checks the instance list against the existing names.
5240 node = self.node = self.cfg.GetNodeInfo(self.op.node_name)
5242 if (self.op.master_candidate is not None or
5243 self.op.drained is not None or
5244 self.op.offline is not None):
5245 # we can't change the master's node flags
5246 if self.op.node_name == self.cfg.GetMasterNode():
5247 raise errors.OpPrereqError("The master role can be changed"
5248 " only via master-failover",
5251 if self.op.master_candidate and not node.master_capable:
5252 raise errors.OpPrereqError("Node %s is not master capable, cannot make"
5253 " it a master candidate" % node.name,
5256 if self.op.vm_capable == False:
5257 (ipri, isec) = self.cfg.GetNodeInstances(self.op.node_name)
5259 raise errors.OpPrereqError("Node %s hosts instances, cannot unset"
5260 " the vm_capable flag" % node.name,
5263 if node.master_candidate and self.might_demote and not self.lock_all:
5264 assert not self.op.auto_promote, "auto_promote set but lock_all not"
5265 # check if after removing the current node, we're missing master
5267 (mc_remaining, mc_should, _) = \
5268 self.cfg.GetMasterCandidateStats(exceptions=[node.name])
5269 if mc_remaining < mc_should:
5270 raise errors.OpPrereqError("Not enough master candidates, please"
5271 " pass auto promote option to allow"
5272 " promotion", errors.ECODE_STATE)
5274 self.old_flags = old_flags = (node.master_candidate,
5275 node.drained, node.offline)
5276 assert old_flags in self._F2R, "Un-handled old flags %s" % str(old_flags)
5277 self.old_role = old_role = self._F2R[old_flags]
5279 # Check for ineffective changes
5280 for attr in self._FLAGS:
5281 if (getattr(self.op, attr) == False and getattr(node, attr) == False):
5282 self.LogInfo("Ignoring request to unset flag %s, already unset", attr)
5283 setattr(self.op, attr, None)
5285 # Past this point, any flag change to False means a transition
5286 # away from the respective state, as only real changes are kept
5288 # TODO: We might query the real power state if it supports OOB
5289 if _SupportsOob(self.cfg, node):
5290 if self.op.offline is False and not (node.powered or
5291 self.op.powered == True):
5292 raise errors.OpPrereqError(("Node %s needs to be turned on before its"
5293 " offline status can be reset") %
5295 elif self.op.powered is not None:
5296 raise errors.OpPrereqError(("Unable to change powered state for node %s"
5297 " as it does not support out-of-band"
5298 " handling") % self.op.node_name)
5300 # If we're being deofflined/drained, we'll MC ourself if needed
5301 if (self.op.drained == False or self.op.offline == False or
5302 (self.op.master_capable and not node.master_capable)):
5303 if _DecideSelfPromotion(self):
5304 self.op.master_candidate = True
5305 self.LogInfo("Auto-promoting node to master candidate")
5307 # If we're no longer master capable, we'll demote ourselves from MC
5308 if self.op.master_capable == False and node.master_candidate:
5309 self.LogInfo("Demoting from master candidate")
5310 self.op.master_candidate = False
5313 assert [getattr(self.op, attr) for attr in self._FLAGS].count(True) <= 1
5314 if self.op.master_candidate:
5315 new_role = self._ROLE_CANDIDATE
5316 elif self.op.drained:
5317 new_role = self._ROLE_DRAINED
5318 elif self.op.offline:
5319 new_role = self._ROLE_OFFLINE
5320 elif False in [self.op.master_candidate, self.op.drained, self.op.offline]:
5321 # False is still in new flags, which means we're un-setting (the
5323 new_role = self._ROLE_REGULAR
5324 else: # no new flags, nothing, keep old role
5327 self.new_role = new_role
5329 if old_role == self._ROLE_OFFLINE and new_role != old_role:
5330 # Trying to transition out of offline status
5331 result = self.rpc.call_version([node.name])[node.name]
5333 raise errors.OpPrereqError("Node %s is being de-offlined but fails"
5334 " to report its version: %s" %
5335 (node.name, result.fail_msg),
5338 self.LogWarning("Transitioning node from offline to online state"
5339 " without using re-add. Please make sure the node"
5342 if self.op.secondary_ip:
5343 # Ok even without locking, because this can't be changed by any LU
5344 master = self.cfg.GetNodeInfo(self.cfg.GetMasterNode())
5345 master_singlehomed = master.secondary_ip == master.primary_ip
5346 if master_singlehomed and self.op.secondary_ip:
5347 raise errors.OpPrereqError("Cannot change the secondary ip on a single"
5348 " homed cluster", errors.ECODE_INVAL)
5351 if self.affected_instances:
5352 raise errors.OpPrereqError("Cannot change secondary ip: offline"
5353 " node has instances (%s) configured"
5354 " to use it" % self.affected_instances)
5356 # On online nodes, check that no instances are running, and that
5357 # the node has the new ip and we can reach it.
5358 for instance in self.affected_instances:
5359 _CheckInstanceDown(self, instance, "cannot change secondary ip")
5361 _CheckNodeHasSecondaryIP(self, node.name, self.op.secondary_ip, True)
5362 if master.name != node.name:
5363 # check reachability from master secondary ip to new secondary ip
5364 if not netutils.TcpPing(self.op.secondary_ip,
5365 constants.DEFAULT_NODED_PORT,
5366 source=master.secondary_ip):
5367 raise errors.OpPrereqError("Node secondary ip not reachable by TCP"
5368 " based ping to node daemon port",
5369 errors.ECODE_ENVIRON)
5371 if self.op.ndparams:
5372 new_ndparams = _GetUpdatedParams(self.node.ndparams, self.op.ndparams)
5373 utils.ForceDictType(new_ndparams, constants.NDS_PARAMETER_TYPES)
5374 self.new_ndparams = new_ndparams
5376 def Exec(self, feedback_fn):
5381 old_role = self.old_role
5382 new_role = self.new_role
5386 if self.op.ndparams:
5387 node.ndparams = self.new_ndparams
5389 if self.op.powered is not None:
5390 node.powered = self.op.powered
5392 for attr in ["master_capable", "vm_capable"]:
5393 val = getattr(self.op, attr)
5395 setattr(node, attr, val)
5396 result.append((attr, str(val)))
5398 if new_role != old_role:
5399 # Tell the node to demote itself, if no longer MC and not offline
5400 if old_role == self._ROLE_CANDIDATE and new_role != self._ROLE_OFFLINE:
5401 msg = self.rpc.call_node_demote_from_mc(node.name).fail_msg
5403 self.LogWarning("Node failed to demote itself: %s", msg)
5405 new_flags = self._R2F[new_role]
5406 for of, nf, desc in zip(self.old_flags, new_flags, self._FLAGS):
5408 result.append((desc, str(nf)))
5409 (node.master_candidate, node.drained, node.offline) = new_flags
5411 # we locked all nodes, we adjust the CP before updating this node
5413 _AdjustCandidatePool(self, [node.name])
5415 if self.op.secondary_ip:
5416 node.secondary_ip = self.op.secondary_ip
5417 result.append(("secondary_ip", self.op.secondary_ip))
5419 # this will trigger configuration file update, if needed
5420 self.cfg.Update(node, feedback_fn)
5422 # this will trigger job queue propagation or cleanup if the mc
5424 if [old_role, new_role].count(self._ROLE_CANDIDATE) == 1:
5425 self.context.ReaddNode(node)
5430 class LUNodePowercycle(NoHooksLU):
5431 """Powercycles a node.
5436 def CheckArguments(self):
5437 self.op.node_name = _ExpandNodeName(self.cfg, self.op.node_name)
5438 if self.op.node_name == self.cfg.GetMasterNode() and not self.op.force:
5439 raise errors.OpPrereqError("The node is the master and the force"
5440 " parameter was not set",
5443 def ExpandNames(self):
5444 """Locking for PowercycleNode.
5446 This is a last-resort option and shouldn't block on other
5447 jobs. Therefore, we grab no locks.
5450 self.needed_locks = {}
5452 def Exec(self, feedback_fn):
5456 result = self.rpc.call_node_powercycle(self.op.node_name,
5457 self.cfg.GetHypervisorType())
5458 result.Raise("Failed to schedule the reboot")
5459 return result.payload
5462 class LUClusterQuery(NoHooksLU):
5463 """Query cluster configuration.
5468 def ExpandNames(self):
5469 self.needed_locks = {}
5471 def Exec(self, feedback_fn):
5472 """Return cluster config.
5475 cluster = self.cfg.GetClusterInfo()
5478 # Filter just for enabled hypervisors
5479 for os_name, hv_dict in cluster.os_hvp.items():
5480 os_hvp[os_name] = {}
5481 for hv_name, hv_params in hv_dict.items():
5482 if hv_name in cluster.enabled_hypervisors:
5483 os_hvp[os_name][hv_name] = hv_params
5485 # Convert ip_family to ip_version
5486 primary_ip_version = constants.IP4_VERSION
5487 if cluster.primary_ip_family == netutils.IP6Address.family:
5488 primary_ip_version = constants.IP6_VERSION
5491 "software_version": constants.RELEASE_VERSION,
5492 "protocol_version": constants.PROTOCOL_VERSION,
5493 "config_version": constants.CONFIG_VERSION,
5494 "os_api_version": max(constants.OS_API_VERSIONS),
5495 "export_version": constants.EXPORT_VERSION,
5496 "architecture": (platform.architecture()[0], platform.machine()),
5497 "name": cluster.cluster_name,
5498 "master": cluster.master_node,
5499 "default_hypervisor": cluster.enabled_hypervisors[0],
5500 "enabled_hypervisors": cluster.enabled_hypervisors,
5501 "hvparams": dict([(hypervisor_name, cluster.hvparams[hypervisor_name])
5502 for hypervisor_name in cluster.enabled_hypervisors]),
5504 "beparams": cluster.beparams,
5505 "osparams": cluster.osparams,
5506 "nicparams": cluster.nicparams,
5507 "ndparams": cluster.ndparams,
5508 "candidate_pool_size": cluster.candidate_pool_size,
5509 "master_netdev": cluster.master_netdev,
5510 "volume_group_name": cluster.volume_group_name,
5511 "drbd_usermode_helper": cluster.drbd_usermode_helper,
5512 "file_storage_dir": cluster.file_storage_dir,
5513 "shared_file_storage_dir": cluster.shared_file_storage_dir,
5514 "maintain_node_health": cluster.maintain_node_health,
5515 "ctime": cluster.ctime,
5516 "mtime": cluster.mtime,
5517 "uuid": cluster.uuid,
5518 "tags": list(cluster.GetTags()),
5519 "uid_pool": cluster.uid_pool,
5520 "default_iallocator": cluster.default_iallocator,
5521 "reserved_lvs": cluster.reserved_lvs,
5522 "primary_ip_version": primary_ip_version,
5523 "prealloc_wipe_disks": cluster.prealloc_wipe_disks,
5524 "hidden_os": cluster.hidden_os,
5525 "blacklisted_os": cluster.blacklisted_os,
5531 class LUClusterConfigQuery(NoHooksLU):
5532 """Return configuration values.
5536 _FIELDS_DYNAMIC = utils.FieldSet()
5537 _FIELDS_STATIC = utils.FieldSet("cluster_name", "master_node", "drain_flag",
5538 "watcher_pause", "volume_group_name")
5540 def CheckArguments(self):
5541 _CheckOutputFields(static=self._FIELDS_STATIC,
5542 dynamic=self._FIELDS_DYNAMIC,
5543 selected=self.op.output_fields)
5545 def ExpandNames(self):
5546 self.needed_locks = {}
5548 def Exec(self, feedback_fn):
5549 """Dump a representation of the cluster config to the standard output.
5553 for field in self.op.output_fields:
5554 if field == "cluster_name":
5555 entry = self.cfg.GetClusterName()
5556 elif field == "master_node":
5557 entry = self.cfg.GetMasterNode()
5558 elif field == "drain_flag":
5559 entry = os.path.exists(constants.JOB_QUEUE_DRAIN_FILE)
5560 elif field == "watcher_pause":
5561 entry = utils.ReadWatcherPauseFile(constants.WATCHER_PAUSEFILE)
5562 elif field == "volume_group_name":
5563 entry = self.cfg.GetVGName()
5565 raise errors.ParameterError(field)
5566 values.append(entry)
5570 class LUInstanceActivateDisks(NoHooksLU):
5571 """Bring up an instance's disks.
5576 def ExpandNames(self):
5577 self._ExpandAndLockInstance()
5578 self.needed_locks[locking.LEVEL_NODE] = []
5579 self.recalculate_locks[locking.LEVEL_NODE] = constants.LOCKS_REPLACE
5581 def DeclareLocks(self, level):
5582 if level == locking.LEVEL_NODE:
5583 self._LockInstancesNodes()
5585 def CheckPrereq(self):
5586 """Check prerequisites.
5588 This checks that the instance is in the cluster.
5591 self.instance = self.cfg.GetInstanceInfo(self.op.instance_name)
5592 assert self.instance is not None, \
5593 "Cannot retrieve locked instance %s" % self.op.instance_name
5594 _CheckNodeOnline(self, self.instance.primary_node)
5596 def Exec(self, feedback_fn):
5597 """Activate the disks.
5600 disks_ok, disks_info = \
5601 _AssembleInstanceDisks(self, self.instance,
5602 ignore_size=self.op.ignore_size)
5604 raise errors.OpExecError("Cannot activate block devices")
5609 def _AssembleInstanceDisks(lu, instance, disks=None, ignore_secondaries=False,
5611 """Prepare the block devices for an instance.
5613 This sets up the block devices on all nodes.
5615 @type lu: L{LogicalUnit}
5616 @param lu: the logical unit on whose behalf we execute
5617 @type instance: L{objects.Instance}
5618 @param instance: the instance for whose disks we assemble
5619 @type disks: list of L{objects.Disk} or None
5620 @param disks: which disks to assemble (or all, if None)
5621 @type ignore_secondaries: boolean
5622 @param ignore_secondaries: if true, errors on secondary nodes
5623 won't result in an error return from the function
5624 @type ignore_size: boolean
5625 @param ignore_size: if true, the current known size of the disk
5626 will not be used during the disk activation, useful for cases
5627 when the size is wrong
5628 @return: False if the operation failed, otherwise a list of
5629 (host, instance_visible_name, node_visible_name)
5630 with the mapping from node devices to instance devices
5635 iname = instance.name
5636 disks = _ExpandCheckDisks(instance, disks)
5638 # With the two passes mechanism we try to reduce the window of
5639 # opportunity for the race condition of switching DRBD to primary
5640 # before handshaking occured, but we do not eliminate it
5642 # The proper fix would be to wait (with some limits) until the
5643 # connection has been made and drbd transitions from WFConnection
5644 # into any other network-connected state (Connected, SyncTarget,
5647 # 1st pass, assemble on all nodes in secondary mode
5648 for idx, inst_disk in enumerate(disks):
5649 for node, node_disk in inst_disk.ComputeNodeTree(instance.primary_node):
5651 node_disk = node_disk.Copy()
5652 node_disk.UnsetSize()
5653 lu.cfg.SetDiskID(node_disk, node)
5654 result = lu.rpc.call_blockdev_assemble(node, node_disk, iname, False, idx)
5655 msg = result.fail_msg
5657 lu.proc.LogWarning("Could not prepare block device %s on node %s"
5658 " (is_primary=False, pass=1): %s",
5659 inst_disk.iv_name, node, msg)
5660 if not ignore_secondaries:
5663 # FIXME: race condition on drbd migration to primary
5665 # 2nd pass, do only the primary node
5666 for idx, inst_disk in enumerate(disks):
5669 for node, node_disk in inst_disk.ComputeNodeTree(instance.primary_node):
5670 if node != instance.primary_node:
5673 node_disk = node_disk.Copy()
5674 node_disk.UnsetSize()
5675 lu.cfg.SetDiskID(node_disk, node)
5676 result = lu.rpc.call_blockdev_assemble(node, node_disk, iname, True, idx)
5677 msg = result.fail_msg
5679 lu.proc.LogWarning("Could not prepare block device %s on node %s"
5680 " (is_primary=True, pass=2): %s",
5681 inst_disk.iv_name, node, msg)
5684 dev_path = result.payload
5686 device_info.append((instance.primary_node, inst_disk.iv_name, dev_path))
5688 # leave the disks configured for the primary node
5689 # this is a workaround that would be fixed better by
5690 # improving the logical/physical id handling
5692 lu.cfg.SetDiskID(disk, instance.primary_node)
5694 return disks_ok, device_info
5697 def _StartInstanceDisks(lu, instance, force):
5698 """Start the disks of an instance.
5701 disks_ok, _ = _AssembleInstanceDisks(lu, instance,
5702 ignore_secondaries=force)
5704 _ShutdownInstanceDisks(lu, instance)
5705 if force is not None and not force:
5706 lu.proc.LogWarning("", hint="If the message above refers to a"
5708 " you can retry the operation using '--force'.")
5709 raise errors.OpExecError("Disk consistency error")
5712 class LUInstanceDeactivateDisks(NoHooksLU):
5713 """Shutdown an instance's disks.
5718 def ExpandNames(self):
5719 self._ExpandAndLockInstance()
5720 self.needed_locks[locking.LEVEL_NODE] = []
5721 self.recalculate_locks[locking.LEVEL_NODE] = constants.LOCKS_REPLACE
5723 def DeclareLocks(self, level):
5724 if level == locking.LEVEL_NODE:
5725 self._LockInstancesNodes()
5727 def CheckPrereq(self):
5728 """Check prerequisites.
5730 This checks that the instance is in the cluster.
5733 self.instance = self.cfg.GetInstanceInfo(self.op.instance_name)
5734 assert self.instance is not None, \
5735 "Cannot retrieve locked instance %s" % self.op.instance_name
5737 def Exec(self, feedback_fn):
5738 """Deactivate the disks
5741 instance = self.instance
5743 _ShutdownInstanceDisks(self, instance)
5745 _SafeShutdownInstanceDisks(self, instance)
5748 def _SafeShutdownInstanceDisks(lu, instance, disks=None):
5749 """Shutdown block devices of an instance.
5751 This function checks if an instance is running, before calling
5752 _ShutdownInstanceDisks.
5755 _CheckInstanceDown(lu, instance, "cannot shutdown disks")
5756 _ShutdownInstanceDisks(lu, instance, disks=disks)
5759 def _ExpandCheckDisks(instance, disks):
5760 """Return the instance disks selected by the disks list
5762 @type disks: list of L{objects.Disk} or None
5763 @param disks: selected disks
5764 @rtype: list of L{objects.Disk}
5765 @return: selected instance disks to act on
5769 return instance.disks
5771 if not set(disks).issubset(instance.disks):
5772 raise errors.ProgrammerError("Can only act on disks belonging to the"
5777 def _ShutdownInstanceDisks(lu, instance, disks=None, ignore_primary=False):
5778 """Shutdown block devices of an instance.
5780 This does the shutdown on all nodes of the instance.
5782 If the ignore_primary is false, errors on the primary node are
5787 disks = _ExpandCheckDisks(instance, disks)
5790 for node, top_disk in disk.ComputeNodeTree(instance.primary_node):
5791 lu.cfg.SetDiskID(top_disk, node)
5792 result = lu.rpc.call_blockdev_shutdown(node, top_disk)
5793 msg = result.fail_msg
5795 lu.LogWarning("Could not shutdown block device %s on node %s: %s",
5796 disk.iv_name, node, msg)
5797 if ((node == instance.primary_node and not ignore_primary) or
5798 (node != instance.primary_node and not result.offline)):
5803 def _CheckNodeFreeMemory(lu, node, reason, requested, hypervisor_name):
5804 """Checks if a node has enough free memory.
5806 This function check if a given node has the needed amount of free
5807 memory. In case the node has less memory or we cannot get the
5808 information from the node, this function raise an OpPrereqError
5811 @type lu: C{LogicalUnit}
5812 @param lu: a logical unit from which we get configuration data
5814 @param node: the node to check
5815 @type reason: C{str}
5816 @param reason: string to use in the error message
5817 @type requested: C{int}
5818 @param requested: the amount of memory in MiB to check for
5819 @type hypervisor_name: C{str}
5820 @param hypervisor_name: the hypervisor to ask for memory stats
5821 @raise errors.OpPrereqError: if the node doesn't have enough memory, or
5822 we cannot check the node
5825 nodeinfo = lu.rpc.call_node_info([node], None, hypervisor_name)
5826 nodeinfo[node].Raise("Can't get data from node %s" % node,
5827 prereq=True, ecode=errors.ECODE_ENVIRON)
5828 free_mem = nodeinfo[node].payload.get("memory_free", None)
5829 if not isinstance(free_mem, int):
5830 raise errors.OpPrereqError("Can't compute free memory on node %s, result"
5831 " was '%s'" % (node, free_mem),
5832 errors.ECODE_ENVIRON)
5833 if requested > free_mem:
5834 raise errors.OpPrereqError("Not enough memory on node %s for %s:"
5835 " needed %s MiB, available %s MiB" %
5836 (node, reason, requested, free_mem),
5840 def _CheckNodesFreeDiskPerVG(lu, nodenames, req_sizes):
5841 """Checks if nodes have enough free disk space in the all VGs.
5843 This function check if all given nodes have the needed amount of
5844 free disk. In case any node has less disk or we cannot get the
5845 information from the node, this function raise an OpPrereqError
5848 @type lu: C{LogicalUnit}
5849 @param lu: a logical unit from which we get configuration data
5850 @type nodenames: C{list}
5851 @param nodenames: the list of node names to check
5852 @type req_sizes: C{dict}
5853 @param req_sizes: the hash of vg and corresponding amount of disk in
5855 @raise errors.OpPrereqError: if the node doesn't have enough disk,
5856 or we cannot check the node
5859 for vg, req_size in req_sizes.items():
5860 _CheckNodesFreeDiskOnVG(lu, nodenames, vg, req_size)
5863 def _CheckNodesFreeDiskOnVG(lu, nodenames, vg, requested):
5864 """Checks if nodes have enough free disk space in the specified VG.
5866 This function check if all given nodes have the needed amount of
5867 free disk. In case any node has less disk or we cannot get the
5868 information from the node, this function raise an OpPrereqError
5871 @type lu: C{LogicalUnit}
5872 @param lu: a logical unit from which we get configuration data
5873 @type nodenames: C{list}
5874 @param nodenames: the list of node names to check
5876 @param vg: the volume group to check
5877 @type requested: C{int}
5878 @param requested: the amount of disk in MiB to check for
5879 @raise errors.OpPrereqError: if the node doesn't have enough disk,
5880 or we cannot check the node
5883 nodeinfo = lu.rpc.call_node_info(nodenames, vg, None)
5884 for node in nodenames:
5885 info = nodeinfo[node]
5886 info.Raise("Cannot get current information from node %s" % node,
5887 prereq=True, ecode=errors.ECODE_ENVIRON)
5888 vg_free = info.payload.get("vg_free", None)
5889 if not isinstance(vg_free, int):
5890 raise errors.OpPrereqError("Can't compute free disk space on node"
5891 " %s for vg %s, result was '%s'" %
5892 (node, vg, vg_free), errors.ECODE_ENVIRON)
5893 if requested > vg_free:
5894 raise errors.OpPrereqError("Not enough disk space on target node %s"
5895 " vg %s: required %d MiB, available %d MiB" %
5896 (node, vg, requested, vg_free),
5900 class LUInstanceStartup(LogicalUnit):
5901 """Starts an instance.
5904 HPATH = "instance-start"
5905 HTYPE = constants.HTYPE_INSTANCE
5908 def CheckArguments(self):
5910 if self.op.beparams:
5911 # fill the beparams dict
5912 utils.ForceDictType(self.op.beparams, constants.BES_PARAMETER_TYPES)
5914 def ExpandNames(self):
5915 self._ExpandAndLockInstance()
5917 def BuildHooksEnv(self):
5920 This runs on master, primary and secondary nodes of the instance.
5924 "FORCE": self.op.force,
5927 env.update(_BuildInstanceHookEnvByObject(self, self.instance))
5931 def BuildHooksNodes(self):
5932 """Build hooks nodes.
5935 nl = [self.cfg.GetMasterNode()] + list(self.instance.all_nodes)
5938 def CheckPrereq(self):
5939 """Check prerequisites.
5941 This checks that the instance is in the cluster.
5944 self.instance = instance = self.cfg.GetInstanceInfo(self.op.instance_name)
5945 assert self.instance is not None, \
5946 "Cannot retrieve locked instance %s" % self.op.instance_name
5949 if self.op.hvparams:
5950 # check hypervisor parameter syntax (locally)
5951 cluster = self.cfg.GetClusterInfo()
5952 utils.ForceDictType(self.op.hvparams, constants.HVS_PARAMETER_TYPES)
5953 filled_hvp = cluster.FillHV(instance)
5954 filled_hvp.update(self.op.hvparams)
5955 hv_type = hypervisor.GetHypervisor(instance.hypervisor)
5956 hv_type.CheckParameterSyntax(filled_hvp)
5957 _CheckHVParams(self, instance.all_nodes, instance.hypervisor, filled_hvp)
5959 self.primary_offline = self.cfg.GetNodeInfo(instance.primary_node).offline
5961 if self.primary_offline and self.op.ignore_offline_nodes:
5962 self.proc.LogWarning("Ignoring offline primary node")
5964 if self.op.hvparams or self.op.beparams:
5965 self.proc.LogWarning("Overridden parameters are ignored")
5967 _CheckNodeOnline(self, instance.primary_node)
5969 bep = self.cfg.GetClusterInfo().FillBE(instance)
5971 # check bridges existence
5972 _CheckInstanceBridgesExist(self, instance)
5974 remote_info = self.rpc.call_instance_info(instance.primary_node,
5976 instance.hypervisor)
5977 remote_info.Raise("Error checking node %s" % instance.primary_node,
5978 prereq=True, ecode=errors.ECODE_ENVIRON)
5979 if not remote_info.payload: # not running already
5980 _CheckNodeFreeMemory(self, instance.primary_node,
5981 "starting instance %s" % instance.name,
5982 bep[constants.BE_MEMORY], instance.hypervisor)
5984 def Exec(self, feedback_fn):
5985 """Start the instance.
5988 instance = self.instance
5989 force = self.op.force
5991 if not self.op.no_remember:
5992 self.cfg.MarkInstanceUp(instance.name)
5994 if self.primary_offline:
5995 assert self.op.ignore_offline_nodes
5996 self.proc.LogInfo("Primary node offline, marked instance as started")
5998 node_current = instance.primary_node
6000 _StartInstanceDisks(self, instance, force)
6002 result = self.rpc.call_instance_start(node_current, instance,
6003 self.op.hvparams, self.op.beparams,
6004 self.op.startup_paused)
6005 msg = result.fail_msg
6007 _ShutdownInstanceDisks(self, instance)
6008 raise errors.OpExecError("Could not start instance: %s" % msg)
6011 class LUInstanceReboot(LogicalUnit):
6012 """Reboot an instance.
6015 HPATH = "instance-reboot"
6016 HTYPE = constants.HTYPE_INSTANCE
6019 def ExpandNames(self):
6020 self._ExpandAndLockInstance()
6022 def BuildHooksEnv(self):
6025 This runs on master, primary and secondary nodes of the instance.
6029 "IGNORE_SECONDARIES": self.op.ignore_secondaries,
6030 "REBOOT_TYPE": self.op.reboot_type,
6031 "SHUTDOWN_TIMEOUT": self.op.shutdown_timeout,
6034 env.update(_BuildInstanceHookEnvByObject(self, self.instance))
6038 def BuildHooksNodes(self):
6039 """Build hooks nodes.
6042 nl = [self.cfg.GetMasterNode()] + list(self.instance.all_nodes)
6045 def CheckPrereq(self):
6046 """Check prerequisites.
6048 This checks that the instance is in the cluster.
6051 self.instance = instance = self.cfg.GetInstanceInfo(self.op.instance_name)
6052 assert self.instance is not None, \
6053 "Cannot retrieve locked instance %s" % self.op.instance_name
6055 _CheckNodeOnline(self, instance.primary_node)
6057 # check bridges existence
6058 _CheckInstanceBridgesExist(self, instance)
6060 def Exec(self, feedback_fn):
6061 """Reboot the instance.
6064 instance = self.instance
6065 ignore_secondaries = self.op.ignore_secondaries
6066 reboot_type = self.op.reboot_type
6068 remote_info = self.rpc.call_instance_info(instance.primary_node,
6070 instance.hypervisor)
6071 remote_info.Raise("Error checking node %s" % instance.primary_node)
6072 instance_running = bool(remote_info.payload)
6074 node_current = instance.primary_node
6076 if instance_running and reboot_type in [constants.INSTANCE_REBOOT_SOFT,
6077 constants.INSTANCE_REBOOT_HARD]:
6078 for disk in instance.disks:
6079 self.cfg.SetDiskID(disk, node_current)
6080 result = self.rpc.call_instance_reboot(node_current, instance,
6082 self.op.shutdown_timeout)
6083 result.Raise("Could not reboot instance")
6085 if instance_running:
6086 result = self.rpc.call_instance_shutdown(node_current, instance,
6087 self.op.shutdown_timeout)
6088 result.Raise("Could not shutdown instance for full reboot")
6089 _ShutdownInstanceDisks(self, instance)
6091 self.LogInfo("Instance %s was already stopped, starting now",
6093 _StartInstanceDisks(self, instance, ignore_secondaries)
6094 result = self.rpc.call_instance_start(node_current, instance,
6096 msg = result.fail_msg
6098 _ShutdownInstanceDisks(self, instance)
6099 raise errors.OpExecError("Could not start instance for"
6100 " full reboot: %s" % msg)
6102 self.cfg.MarkInstanceUp(instance.name)
6105 class LUInstanceShutdown(LogicalUnit):
6106 """Shutdown an instance.
6109 HPATH = "instance-stop"
6110 HTYPE = constants.HTYPE_INSTANCE
6113 def ExpandNames(self):
6114 self._ExpandAndLockInstance()
6116 def BuildHooksEnv(self):
6119 This runs on master, primary and secondary nodes of the instance.
6122 env = _BuildInstanceHookEnvByObject(self, self.instance)
6123 env["TIMEOUT"] = self.op.timeout
6126 def BuildHooksNodes(self):
6127 """Build hooks nodes.
6130 nl = [self.cfg.GetMasterNode()] + list(self.instance.all_nodes)
6133 def CheckPrereq(self):
6134 """Check prerequisites.
6136 This checks that the instance is in the cluster.
6139 self.instance = self.cfg.GetInstanceInfo(self.op.instance_name)
6140 assert self.instance is not None, \
6141 "Cannot retrieve locked instance %s" % self.op.instance_name
6143 self.primary_offline = \
6144 self.cfg.GetNodeInfo(self.instance.primary_node).offline
6146 if self.primary_offline and self.op.ignore_offline_nodes:
6147 self.proc.LogWarning("Ignoring offline primary node")
6149 _CheckNodeOnline(self, self.instance.primary_node)
6151 def Exec(self, feedback_fn):
6152 """Shutdown the instance.
6155 instance = self.instance
6156 node_current = instance.primary_node
6157 timeout = self.op.timeout
6159 if not self.op.no_remember:
6160 self.cfg.MarkInstanceDown(instance.name)
6162 if self.primary_offline:
6163 assert self.op.ignore_offline_nodes
6164 self.proc.LogInfo("Primary node offline, marked instance as stopped")
6166 result = self.rpc.call_instance_shutdown(node_current, instance, timeout)
6167 msg = result.fail_msg
6169 self.proc.LogWarning("Could not shutdown instance: %s" % msg)
6171 _ShutdownInstanceDisks(self, instance)
6174 class LUInstanceReinstall(LogicalUnit):
6175 """Reinstall an instance.
6178 HPATH = "instance-reinstall"
6179 HTYPE = constants.HTYPE_INSTANCE
6182 def ExpandNames(self):
6183 self._ExpandAndLockInstance()
6185 def BuildHooksEnv(self):
6188 This runs on master, primary and secondary nodes of the instance.
6191 return _BuildInstanceHookEnvByObject(self, self.instance)
6193 def BuildHooksNodes(self):
6194 """Build hooks nodes.
6197 nl = [self.cfg.GetMasterNode()] + list(self.instance.all_nodes)
6200 def CheckPrereq(self):
6201 """Check prerequisites.
6203 This checks that the instance is in the cluster and is not running.
6206 instance = self.cfg.GetInstanceInfo(self.op.instance_name)
6207 assert instance is not None, \
6208 "Cannot retrieve locked instance %s" % self.op.instance_name
6209 _CheckNodeOnline(self, instance.primary_node, "Instance primary node"
6210 " offline, cannot reinstall")
6211 for node in instance.secondary_nodes:
6212 _CheckNodeOnline(self, node, "Instance secondary node offline,"
6213 " cannot reinstall")
6215 if instance.disk_template == constants.DT_DISKLESS:
6216 raise errors.OpPrereqError("Instance '%s' has no disks" %
6217 self.op.instance_name,
6219 _CheckInstanceDown(self, instance, "cannot reinstall")
6221 if self.op.os_type is not None:
6223 pnode = _ExpandNodeName(self.cfg, instance.primary_node)
6224 _CheckNodeHasOS(self, pnode, self.op.os_type, self.op.force_variant)
6225 instance_os = self.op.os_type
6227 instance_os = instance.os
6229 nodelist = list(instance.all_nodes)
6231 if self.op.osparams:
6232 i_osdict = _GetUpdatedParams(instance.osparams, self.op.osparams)
6233 _CheckOSParams(self, True, nodelist, instance_os, i_osdict)
6234 self.os_inst = i_osdict # the new dict (without defaults)
6238 self.instance = instance
6240 def Exec(self, feedback_fn):
6241 """Reinstall the instance.
6244 inst = self.instance
6246 if self.op.os_type is not None:
6247 feedback_fn("Changing OS to '%s'..." % self.op.os_type)
6248 inst.os = self.op.os_type
6249 # Write to configuration
6250 self.cfg.Update(inst, feedback_fn)
6252 _StartInstanceDisks(self, inst, None)
6254 feedback_fn("Running the instance OS create scripts...")
6255 # FIXME: pass debug option from opcode to backend
6256 result = self.rpc.call_instance_os_add(inst.primary_node, inst, True,
6257 self.op.debug_level,
6258 osparams=self.os_inst)
6259 result.Raise("Could not install OS for instance %s on node %s" %
6260 (inst.name, inst.primary_node))
6262 _ShutdownInstanceDisks(self, inst)
6265 class LUInstanceRecreateDisks(LogicalUnit):
6266 """Recreate an instance's missing disks.
6269 HPATH = "instance-recreate-disks"
6270 HTYPE = constants.HTYPE_INSTANCE
6273 def CheckArguments(self):
6274 # normalise the disk list
6275 self.op.disks = sorted(frozenset(self.op.disks))
6277 def ExpandNames(self):
6278 self._ExpandAndLockInstance()
6279 self.recalculate_locks[locking.LEVEL_NODE] = constants.LOCKS_APPEND
6281 self.op.nodes = [_ExpandNodeName(self.cfg, n) for n in self.op.nodes]
6282 self.needed_locks[locking.LEVEL_NODE] = list(self.op.nodes)
6284 self.needed_locks[locking.LEVEL_NODE] = []
6286 def DeclareLocks(self, level):
6287 if level == locking.LEVEL_NODE:
6288 # if we replace the nodes, we only need to lock the old primary,
6289 # otherwise we need to lock all nodes for disk re-creation
6290 primary_only = bool(self.op.nodes)
6291 self._LockInstancesNodes(primary_only=primary_only)
6293 def BuildHooksEnv(self):
6296 This runs on master, primary and secondary nodes of the instance.
6299 return _BuildInstanceHookEnvByObject(self, self.instance)
6301 def BuildHooksNodes(self):
6302 """Build hooks nodes.
6305 nl = [self.cfg.GetMasterNode()] + list(self.instance.all_nodes)
6308 def CheckPrereq(self):
6309 """Check prerequisites.
6311 This checks that the instance is in the cluster and is not running.
6314 instance = self.cfg.GetInstanceInfo(self.op.instance_name)
6315 assert instance is not None, \
6316 "Cannot retrieve locked instance %s" % self.op.instance_name
6318 if len(self.op.nodes) != len(instance.all_nodes):
6319 raise errors.OpPrereqError("Instance %s currently has %d nodes, but"
6320 " %d replacement nodes were specified" %
6321 (instance.name, len(instance.all_nodes),
6322 len(self.op.nodes)),
6324 assert instance.disk_template != constants.DT_DRBD8 or \
6325 len(self.op.nodes) == 2
6326 assert instance.disk_template != constants.DT_PLAIN or \
6327 len(self.op.nodes) == 1
6328 primary_node = self.op.nodes[0]
6330 primary_node = instance.primary_node
6331 _CheckNodeOnline(self, primary_node)
6333 if instance.disk_template == constants.DT_DISKLESS:
6334 raise errors.OpPrereqError("Instance '%s' has no disks" %
6335 self.op.instance_name, errors.ECODE_INVAL)
6336 # if we replace nodes *and* the old primary is offline, we don't
6338 assert instance.primary_node in self.needed_locks[locking.LEVEL_NODE]
6339 old_pnode = self.cfg.GetNodeInfo(instance.primary_node)
6340 if not (self.op.nodes and old_pnode.offline):
6341 _CheckInstanceDown(self, instance, "cannot recreate disks")
6343 if not self.op.disks:
6344 self.op.disks = range(len(instance.disks))
6346 for idx in self.op.disks:
6347 if idx >= len(instance.disks):
6348 raise errors.OpPrereqError("Invalid disk index '%s'" % idx,
6350 if self.op.disks != range(len(instance.disks)) and self.op.nodes:
6351 raise errors.OpPrereqError("Can't recreate disks partially and"
6352 " change the nodes at the same time",
6354 self.instance = instance
6356 def Exec(self, feedback_fn):
6357 """Recreate the disks.
6360 instance = self.instance
6363 mods = [] # keeps track of needed logical_id changes
6365 for idx, disk in enumerate(instance.disks):
6366 if idx not in self.op.disks: # disk idx has not been passed in
6369 # update secondaries for disks, if needed
6371 if disk.dev_type == constants.LD_DRBD8:
6372 # need to update the nodes and minors
6373 assert len(self.op.nodes) == 2
6374 assert len(disk.logical_id) == 6 # otherwise disk internals
6376 (_, _, old_port, _, _, old_secret) = disk.logical_id
6377 new_minors = self.cfg.AllocateDRBDMinor(self.op.nodes, instance.name)
6378 new_id = (self.op.nodes[0], self.op.nodes[1], old_port,
6379 new_minors[0], new_minors[1], old_secret)
6380 assert len(disk.logical_id) == len(new_id)
6381 mods.append((idx, new_id))
6383 # now that we have passed all asserts above, we can apply the mods
6384 # in a single run (to avoid partial changes)
6385 for idx, new_id in mods:
6386 instance.disks[idx].logical_id = new_id
6388 # change primary node, if needed
6390 instance.primary_node = self.op.nodes[0]
6391 self.LogWarning("Changing the instance's nodes, you will have to"
6392 " remove any disks left on the older nodes manually")
6395 self.cfg.Update(instance, feedback_fn)
6397 _CreateDisks(self, instance, to_skip=to_skip)
6400 class LUInstanceRename(LogicalUnit):
6401 """Rename an instance.
6404 HPATH = "instance-rename"
6405 HTYPE = constants.HTYPE_INSTANCE
6407 def CheckArguments(self):
6411 if self.op.ip_check and not self.op.name_check:
6412 # TODO: make the ip check more flexible and not depend on the name check
6413 raise errors.OpPrereqError("IP address check requires a name check",
6416 def BuildHooksEnv(self):
6419 This runs on master, primary and secondary nodes of the instance.
6422 env = _BuildInstanceHookEnvByObject(self, self.instance)
6423 env["INSTANCE_NEW_NAME"] = self.op.new_name
6426 def BuildHooksNodes(self):
6427 """Build hooks nodes.
6430 nl = [self.cfg.GetMasterNode()] + list(self.instance.all_nodes)
6433 def CheckPrereq(self):
6434 """Check prerequisites.
6436 This checks that the instance is in the cluster and is not running.
6439 self.op.instance_name = _ExpandInstanceName(self.cfg,
6440 self.op.instance_name)
6441 instance = self.cfg.GetInstanceInfo(self.op.instance_name)
6442 assert instance is not None
6443 _CheckNodeOnline(self, instance.primary_node)
6444 _CheckInstanceDown(self, instance, "cannot rename")
6445 self.instance = instance
6447 new_name = self.op.new_name
6448 if self.op.name_check:
6449 hostname = netutils.GetHostname(name=new_name)
6450 if hostname.name != new_name:
6451 self.LogInfo("Resolved given name '%s' to '%s'", new_name,
6453 if not utils.MatchNameComponent(self.op.new_name, [hostname.name]):
6454 raise errors.OpPrereqError(("Resolved hostname '%s' does not look the"
6455 " same as given hostname '%s'") %
6456 (hostname.name, self.op.new_name),
6458 new_name = self.op.new_name = hostname.name
6459 if (self.op.ip_check and
6460 netutils.TcpPing(hostname.ip, constants.DEFAULT_NODED_PORT)):
6461 raise errors.OpPrereqError("IP %s of instance %s already in use" %
6462 (hostname.ip, new_name),
6463 errors.ECODE_NOTUNIQUE)
6465 instance_list = self.cfg.GetInstanceList()
6466 if new_name in instance_list and new_name != instance.name:
6467 raise errors.OpPrereqError("Instance '%s' is already in the cluster" %
6468 new_name, errors.ECODE_EXISTS)
6470 def Exec(self, feedback_fn):
6471 """Rename the instance.
6474 inst = self.instance
6475 old_name = inst.name
6477 rename_file_storage = False
6478 if (inst.disk_template in constants.DTS_FILEBASED and
6479 self.op.new_name != inst.name):
6480 old_file_storage_dir = os.path.dirname(inst.disks[0].logical_id[1])
6481 rename_file_storage = True
6483 self.cfg.RenameInstance(inst.name, self.op.new_name)
6484 # Change the instance lock. This is definitely safe while we hold the BGL.
6485 # Otherwise the new lock would have to be added in acquired mode.
6487 self.glm.remove(locking.LEVEL_INSTANCE, old_name)
6488 self.glm.add(locking.LEVEL_INSTANCE, self.op.new_name)
6490 # re-read the instance from the configuration after rename
6491 inst = self.cfg.GetInstanceInfo(self.op.new_name)
6493 if rename_file_storage:
6494 new_file_storage_dir = os.path.dirname(inst.disks[0].logical_id[1])
6495 result = self.rpc.call_file_storage_dir_rename(inst.primary_node,
6496 old_file_storage_dir,
6497 new_file_storage_dir)
6498 result.Raise("Could not rename on node %s directory '%s' to '%s'"
6499 " (but the instance has been renamed in Ganeti)" %
6500 (inst.primary_node, old_file_storage_dir,
6501 new_file_storage_dir))
6503 _StartInstanceDisks(self, inst, None)
6505 result = self.rpc.call_instance_run_rename(inst.primary_node, inst,
6506 old_name, self.op.debug_level)
6507 msg = result.fail_msg
6509 msg = ("Could not run OS rename script for instance %s on node %s"
6510 " (but the instance has been renamed in Ganeti): %s" %
6511 (inst.name, inst.primary_node, msg))
6512 self.proc.LogWarning(msg)
6514 _ShutdownInstanceDisks(self, inst)
6519 class LUInstanceRemove(LogicalUnit):
6520 """Remove an instance.
6523 HPATH = "instance-remove"
6524 HTYPE = constants.HTYPE_INSTANCE
6527 def ExpandNames(self):
6528 self._ExpandAndLockInstance()
6529 self.needed_locks[locking.LEVEL_NODE] = []
6530 self.recalculate_locks[locking.LEVEL_NODE] = constants.LOCKS_REPLACE
6532 def DeclareLocks(self, level):
6533 if level == locking.LEVEL_NODE:
6534 self._LockInstancesNodes()
6536 def BuildHooksEnv(self):
6539 This runs on master, primary and secondary nodes of the instance.
6542 env = _BuildInstanceHookEnvByObject(self, self.instance)
6543 env["SHUTDOWN_TIMEOUT"] = self.op.shutdown_timeout
6546 def BuildHooksNodes(self):
6547 """Build hooks nodes.
6550 nl = [self.cfg.GetMasterNode()]
6551 nl_post = list(self.instance.all_nodes) + nl
6552 return (nl, nl_post)
6554 def CheckPrereq(self):
6555 """Check prerequisites.
6557 This checks that the instance is in the cluster.
6560 self.instance = self.cfg.GetInstanceInfo(self.op.instance_name)
6561 assert self.instance is not None, \
6562 "Cannot retrieve locked instance %s" % self.op.instance_name
6564 def Exec(self, feedback_fn):
6565 """Remove the instance.
6568 instance = self.instance
6569 logging.info("Shutting down instance %s on node %s",
6570 instance.name, instance.primary_node)
6572 result = self.rpc.call_instance_shutdown(instance.primary_node, instance,
6573 self.op.shutdown_timeout)
6574 msg = result.fail_msg
6576 if self.op.ignore_failures:
6577 feedback_fn("Warning: can't shutdown instance: %s" % msg)
6579 raise errors.OpExecError("Could not shutdown instance %s on"
6581 (instance.name, instance.primary_node, msg))
6583 _RemoveInstance(self, feedback_fn, instance, self.op.ignore_failures)
6586 def _RemoveInstance(lu, feedback_fn, instance, ignore_failures):
6587 """Utility function to remove an instance.
6590 logging.info("Removing block devices for instance %s", instance.name)
6592 if not _RemoveDisks(lu, instance):
6593 if not ignore_failures:
6594 raise errors.OpExecError("Can't remove instance's disks")
6595 feedback_fn("Warning: can't remove instance's disks")
6597 logging.info("Removing instance %s out of cluster config", instance.name)
6599 lu.cfg.RemoveInstance(instance.name)
6601 assert not lu.remove_locks.get(locking.LEVEL_INSTANCE), \
6602 "Instance lock removal conflict"
6604 # Remove lock for the instance
6605 lu.remove_locks[locking.LEVEL_INSTANCE] = instance.name
6608 class LUInstanceQuery(NoHooksLU):
6609 """Logical unit for querying instances.
6612 # pylint: disable=W0142
6615 def CheckArguments(self):
6616 self.iq = _InstanceQuery(qlang.MakeSimpleFilter("name", self.op.names),
6617 self.op.output_fields, self.op.use_locking)
6619 def ExpandNames(self):
6620 self.iq.ExpandNames(self)
6622 def DeclareLocks(self, level):
6623 self.iq.DeclareLocks(self, level)
6625 def Exec(self, feedback_fn):
6626 return self.iq.OldStyleQuery(self)
6629 class LUInstanceFailover(LogicalUnit):
6630 """Failover an instance.
6633 HPATH = "instance-failover"
6634 HTYPE = constants.HTYPE_INSTANCE
6637 def CheckArguments(self):
6638 """Check the arguments.
6641 self.iallocator = getattr(self.op, "iallocator", None)
6642 self.target_node = getattr(self.op, "target_node", None)
6644 def ExpandNames(self):
6645 self._ExpandAndLockInstance()
6647 if self.op.target_node is not None:
6648 self.op.target_node = _ExpandNodeName(self.cfg, self.op.target_node)
6650 self.needed_locks[locking.LEVEL_NODE] = []
6651 self.recalculate_locks[locking.LEVEL_NODE] = constants.LOCKS_REPLACE
6653 ignore_consistency = self.op.ignore_consistency
6654 shutdown_timeout = self.op.shutdown_timeout
6655 self._migrater = TLMigrateInstance(self, self.op.instance_name,
6658 ignore_consistency=ignore_consistency,
6659 shutdown_timeout=shutdown_timeout)
6660 self.tasklets = [self._migrater]
6662 def DeclareLocks(self, level):
6663 if level == locking.LEVEL_NODE:
6664 instance = self.context.cfg.GetInstanceInfo(self.op.instance_name)
6665 if instance.disk_template in constants.DTS_EXT_MIRROR:
6666 if self.op.target_node is None:
6667 self.needed_locks[locking.LEVEL_NODE] = locking.ALL_SET
6669 self.needed_locks[locking.LEVEL_NODE] = [instance.primary_node,
6670 self.op.target_node]
6671 del self.recalculate_locks[locking.LEVEL_NODE]
6673 self._LockInstancesNodes()
6675 def BuildHooksEnv(self):
6678 This runs on master, primary and secondary nodes of the instance.
6681 instance = self._migrater.instance
6682 source_node = instance.primary_node
6683 target_node = self.op.target_node
6685 "IGNORE_CONSISTENCY": self.op.ignore_consistency,
6686 "SHUTDOWN_TIMEOUT": self.op.shutdown_timeout,
6687 "OLD_PRIMARY": source_node,
6688 "NEW_PRIMARY": target_node,
6691 if instance.disk_template in constants.DTS_INT_MIRROR:
6692 env["OLD_SECONDARY"] = instance.secondary_nodes[0]
6693 env["NEW_SECONDARY"] = source_node
6695 env["OLD_SECONDARY"] = env["NEW_SECONDARY"] = ""
6697 env.update(_BuildInstanceHookEnvByObject(self, instance))
6701 def BuildHooksNodes(self):
6702 """Build hooks nodes.
6705 instance = self._migrater.instance
6706 nl = [self.cfg.GetMasterNode()] + list(instance.secondary_nodes)
6707 return (nl, nl + [instance.primary_node])
6710 class LUInstanceMigrate(LogicalUnit):
6711 """Migrate an instance.
6713 This is migration without shutting down, compared to the failover,
6714 which is done with shutdown.
6717 HPATH = "instance-migrate"
6718 HTYPE = constants.HTYPE_INSTANCE
6721 def ExpandNames(self):
6722 self._ExpandAndLockInstance()
6724 if self.op.target_node is not None:
6725 self.op.target_node = _ExpandNodeName(self.cfg, self.op.target_node)
6727 self.needed_locks[locking.LEVEL_NODE] = []
6728 self.recalculate_locks[locking.LEVEL_NODE] = constants.LOCKS_REPLACE
6730 self._migrater = TLMigrateInstance(self, self.op.instance_name,
6731 cleanup=self.op.cleanup,
6733 fallback=self.op.allow_failover)
6734 self.tasklets = [self._migrater]
6736 def DeclareLocks(self, level):
6737 if level == locking.LEVEL_NODE:
6738 instance = self.context.cfg.GetInstanceInfo(self.op.instance_name)
6739 if instance.disk_template in constants.DTS_EXT_MIRROR:
6740 if self.op.target_node is None:
6741 self.needed_locks[locking.LEVEL_NODE] = locking.ALL_SET
6743 self.needed_locks[locking.LEVEL_NODE] = [instance.primary_node,
6744 self.op.target_node]
6745 del self.recalculate_locks[locking.LEVEL_NODE]
6747 self._LockInstancesNodes()
6749 def BuildHooksEnv(self):
6752 This runs on master, primary and secondary nodes of the instance.
6755 instance = self._migrater.instance
6756 source_node = instance.primary_node
6757 target_node = self.op.target_node
6758 env = _BuildInstanceHookEnvByObject(self, instance)
6760 "MIGRATE_LIVE": self._migrater.live,
6761 "MIGRATE_CLEANUP": self.op.cleanup,
6762 "OLD_PRIMARY": source_node,
6763 "NEW_PRIMARY": target_node,
6766 if instance.disk_template in constants.DTS_INT_MIRROR:
6767 env["OLD_SECONDARY"] = target_node
6768 env["NEW_SECONDARY"] = source_node
6770 env["OLD_SECONDARY"] = env["NEW_SECONDARY"] = None
6774 def BuildHooksNodes(self):
6775 """Build hooks nodes.
6778 instance = self._migrater.instance
6779 nl = [self.cfg.GetMasterNode()] + list(instance.secondary_nodes)
6780 return (nl, nl + [instance.primary_node])
6783 class LUInstanceMove(LogicalUnit):
6784 """Move an instance by data-copying.
6787 HPATH = "instance-move"
6788 HTYPE = constants.HTYPE_INSTANCE
6791 def ExpandNames(self):
6792 self._ExpandAndLockInstance()
6793 target_node = _ExpandNodeName(self.cfg, self.op.target_node)
6794 self.op.target_node = target_node
6795 self.needed_locks[locking.LEVEL_NODE] = [target_node]
6796 self.recalculate_locks[locking.LEVEL_NODE] = constants.LOCKS_APPEND
6798 def DeclareLocks(self, level):
6799 if level == locking.LEVEL_NODE:
6800 self._LockInstancesNodes(primary_only=True)
6802 def BuildHooksEnv(self):
6805 This runs on master, primary and secondary nodes of the instance.
6809 "TARGET_NODE": self.op.target_node,
6810 "SHUTDOWN_TIMEOUT": self.op.shutdown_timeout,
6812 env.update(_BuildInstanceHookEnvByObject(self, self.instance))
6815 def BuildHooksNodes(self):
6816 """Build hooks nodes.
6820 self.cfg.GetMasterNode(),
6821 self.instance.primary_node,
6822 self.op.target_node,
6826 def CheckPrereq(self):
6827 """Check prerequisites.
6829 This checks that the instance is in the cluster.
6832 self.instance = instance = self.cfg.GetInstanceInfo(self.op.instance_name)
6833 assert self.instance is not None, \
6834 "Cannot retrieve locked instance %s" % self.op.instance_name
6836 node = self.cfg.GetNodeInfo(self.op.target_node)
6837 assert node is not None, \
6838 "Cannot retrieve locked node %s" % self.op.target_node
6840 self.target_node = target_node = node.name
6842 if target_node == instance.primary_node:
6843 raise errors.OpPrereqError("Instance %s is already on the node %s" %
6844 (instance.name, target_node),
6847 bep = self.cfg.GetClusterInfo().FillBE(instance)
6849 for idx, dsk in enumerate(instance.disks):
6850 if dsk.dev_type not in (constants.LD_LV, constants.LD_FILE):
6851 raise errors.OpPrereqError("Instance disk %d has a complex layout,"
6852 " cannot copy" % idx, errors.ECODE_STATE)
6854 _CheckNodeOnline(self, target_node)
6855 _CheckNodeNotDrained(self, target_node)
6856 _CheckNodeVmCapable(self, target_node)
6858 if instance.admin_up:
6859 # check memory requirements on the secondary node
6860 _CheckNodeFreeMemory(self, target_node, "failing over instance %s" %
6861 instance.name, bep[constants.BE_MEMORY],
6862 instance.hypervisor)
6864 self.LogInfo("Not checking memory on the secondary node as"
6865 " instance will not be started")
6867 # check bridge existance
6868 _CheckInstanceBridgesExist(self, instance, node=target_node)
6870 def Exec(self, feedback_fn):
6871 """Move an instance.
6873 The move is done by shutting it down on its present node, copying
6874 the data over (slow) and starting it on the new node.
6877 instance = self.instance
6879 source_node = instance.primary_node
6880 target_node = self.target_node
6882 self.LogInfo("Shutting down instance %s on source node %s",
6883 instance.name, source_node)
6885 result = self.rpc.call_instance_shutdown(source_node, instance,
6886 self.op.shutdown_timeout)
6887 msg = result.fail_msg
6889 if self.op.ignore_consistency:
6890 self.proc.LogWarning("Could not shutdown instance %s on node %s."
6891 " Proceeding anyway. Please make sure node"
6892 " %s is down. Error details: %s",
6893 instance.name, source_node, source_node, msg)
6895 raise errors.OpExecError("Could not shutdown instance %s on"
6897 (instance.name, source_node, msg))
6899 # create the target disks
6901 _CreateDisks(self, instance, target_node=target_node)
6902 except errors.OpExecError:
6903 self.LogWarning("Device creation failed, reverting...")
6905 _RemoveDisks(self, instance, target_node=target_node)
6907 self.cfg.ReleaseDRBDMinors(instance.name)
6910 cluster_name = self.cfg.GetClusterInfo().cluster_name
6913 # activate, get path, copy the data over
6914 for idx, disk in enumerate(instance.disks):
6915 self.LogInfo("Copying data for disk %d", idx)
6916 result = self.rpc.call_blockdev_assemble(target_node, disk,
6917 instance.name, True, idx)
6919 self.LogWarning("Can't assemble newly created disk %d: %s",
6920 idx, result.fail_msg)
6921 errs.append(result.fail_msg)
6923 dev_path = result.payload
6924 result = self.rpc.call_blockdev_export(source_node, disk,
6925 target_node, dev_path,
6928 self.LogWarning("Can't copy data over for disk %d: %s",
6929 idx, result.fail_msg)
6930 errs.append(result.fail_msg)
6934 self.LogWarning("Some disks failed to copy, aborting")
6936 _RemoveDisks(self, instance, target_node=target_node)
6938 self.cfg.ReleaseDRBDMinors(instance.name)
6939 raise errors.OpExecError("Errors during disk copy: %s" %
6942 instance.primary_node = target_node
6943 self.cfg.Update(instance, feedback_fn)
6945 self.LogInfo("Removing the disks on the original node")
6946 _RemoveDisks(self, instance, target_node=source_node)
6948 # Only start the instance if it's marked as up
6949 if instance.admin_up:
6950 self.LogInfo("Starting instance %s on node %s",
6951 instance.name, target_node)
6953 disks_ok, _ = _AssembleInstanceDisks(self, instance,
6954 ignore_secondaries=True)
6956 _ShutdownInstanceDisks(self, instance)
6957 raise errors.OpExecError("Can't activate the instance's disks")
6959 result = self.rpc.call_instance_start(target_node, instance,
6961 msg = result.fail_msg
6963 _ShutdownInstanceDisks(self, instance)
6964 raise errors.OpExecError("Could not start instance %s on node %s: %s" %
6965 (instance.name, target_node, msg))
6968 class LUNodeMigrate(LogicalUnit):
6969 """Migrate all instances from a node.
6972 HPATH = "node-migrate"
6973 HTYPE = constants.HTYPE_NODE
6976 def CheckArguments(self):
6979 def ExpandNames(self):
6980 self.op.node_name = _ExpandNodeName(self.cfg, self.op.node_name)
6982 self.share_locks = _ShareAll()
6983 self.needed_locks = {
6984 locking.LEVEL_NODE: [self.op.node_name],
6987 def BuildHooksEnv(self):
6990 This runs on the master, the primary and all the secondaries.
6994 "NODE_NAME": self.op.node_name,
6997 def BuildHooksNodes(self):
6998 """Build hooks nodes.
7001 nl = [self.cfg.GetMasterNode()]
7004 def CheckPrereq(self):
7007 def Exec(self, feedback_fn):
7008 # Prepare jobs for migration instances
7010 [opcodes.OpInstanceMigrate(instance_name=inst.name,
7013 iallocator=self.op.iallocator,
7014 target_node=self.op.target_node)]
7015 for inst in _GetNodePrimaryInstances(self.cfg, self.op.node_name)
7018 # TODO: Run iallocator in this opcode and pass correct placement options to
7019 # OpInstanceMigrate. Since other jobs can modify the cluster between
7020 # running the iallocator and the actual migration, a good consistency model
7021 # will have to be found.
7023 assert (frozenset(self.owned_locks(locking.LEVEL_NODE)) ==
7024 frozenset([self.op.node_name]))
7026 return ResultWithJobs(jobs)
7029 class TLMigrateInstance(Tasklet):
7030 """Tasklet class for instance migration.
7033 @ivar live: whether the migration will be done live or non-live;
7034 this variable is initalized only after CheckPrereq has run
7035 @type cleanup: boolean
7036 @ivar cleanup: Wheater we cleanup from a failed migration
7037 @type iallocator: string
7038 @ivar iallocator: The iallocator used to determine target_node
7039 @type target_node: string
7040 @ivar target_node: If given, the target_node to reallocate the instance to
7041 @type failover: boolean
7042 @ivar failover: Whether operation results in failover or migration
7043 @type fallback: boolean
7044 @ivar fallback: Whether fallback to failover is allowed if migration not
7046 @type ignore_consistency: boolean
7047 @ivar ignore_consistency: Wheter we should ignore consistency between source
7049 @type shutdown_timeout: int
7050 @ivar shutdown_timeout: In case of failover timeout of the shutdown
7053 def __init__(self, lu, instance_name, cleanup=False,
7054 failover=False, fallback=False,
7055 ignore_consistency=False,
7056 shutdown_timeout=constants.DEFAULT_SHUTDOWN_TIMEOUT):
7057 """Initializes this class.
7060 Tasklet.__init__(self, lu)
7063 self.instance_name = instance_name
7064 self.cleanup = cleanup
7065 self.live = False # will be overridden later
7066 self.failover = failover
7067 self.fallback = fallback
7068 self.ignore_consistency = ignore_consistency
7069 self.shutdown_timeout = shutdown_timeout
7071 def CheckPrereq(self):
7072 """Check prerequisites.
7074 This checks that the instance is in the cluster.
7077 instance_name = _ExpandInstanceName(self.lu.cfg, self.instance_name)
7078 instance = self.cfg.GetInstanceInfo(instance_name)
7079 assert instance is not None
7080 self.instance = instance
7082 if (not self.cleanup and not instance.admin_up and not self.failover and
7084 self.lu.LogInfo("Instance is marked down, fallback allowed, switching"
7086 self.failover = True
7088 if instance.disk_template not in constants.DTS_MIRRORED:
7093 raise errors.OpPrereqError("Instance's disk layout '%s' does not allow"
7094 " %s" % (instance.disk_template, text),
7097 if instance.disk_template in constants.DTS_EXT_MIRROR:
7098 _CheckIAllocatorOrNode(self.lu, "iallocator", "target_node")
7100 if self.lu.op.iallocator:
7101 self._RunAllocator()
7103 # We set set self.target_node as it is required by
7105 self.target_node = self.lu.op.target_node
7107 # self.target_node is already populated, either directly or by the
7109 target_node = self.target_node
7110 if self.target_node == instance.primary_node:
7111 raise errors.OpPrereqError("Cannot migrate instance %s"
7112 " to its primary (%s)" %
7113 (instance.name, instance.primary_node))
7115 if len(self.lu.tasklets) == 1:
7116 # It is safe to release locks only when we're the only tasklet
7118 _ReleaseLocks(self.lu, locking.LEVEL_NODE,
7119 keep=[instance.primary_node, self.target_node])
7122 secondary_nodes = instance.secondary_nodes
7123 if not secondary_nodes:
7124 raise errors.ConfigurationError("No secondary node but using"
7125 " %s disk template" %
7126 instance.disk_template)
7127 target_node = secondary_nodes[0]
7128 if self.lu.op.iallocator or (self.lu.op.target_node and
7129 self.lu.op.target_node != target_node):
7131 text = "failed over"
7134 raise errors.OpPrereqError("Instances with disk template %s cannot"
7135 " be %s to arbitrary nodes"
7136 " (neither an iallocator nor a target"
7137 " node can be passed)" %
7138 (instance.disk_template, text),
7141 i_be = self.cfg.GetClusterInfo().FillBE(instance)
7143 # check memory requirements on the secondary node
7144 if not self.cleanup and (not self.failover or instance.admin_up):
7145 _CheckNodeFreeMemory(self.lu, target_node, "migrating instance %s" %
7146 instance.name, i_be[constants.BE_MEMORY],
7147 instance.hypervisor)
7149 self.lu.LogInfo("Not checking memory on the secondary node as"
7150 " instance will not be started")
7152 # check bridge existance
7153 _CheckInstanceBridgesExist(self.lu, instance, node=target_node)
7155 if not self.cleanup:
7156 _CheckNodeNotDrained(self.lu, target_node)
7157 if not self.failover:
7158 result = self.rpc.call_instance_migratable(instance.primary_node,
7160 if result.fail_msg and self.fallback:
7161 self.lu.LogInfo("Can't migrate, instance offline, fallback to"
7163 self.failover = True
7165 result.Raise("Can't migrate, please use failover",
7166 prereq=True, ecode=errors.ECODE_STATE)
7168 assert not (self.failover and self.cleanup)
7170 if not self.failover:
7171 if self.lu.op.live is not None and self.lu.op.mode is not None:
7172 raise errors.OpPrereqError("Only one of the 'live' and 'mode'"
7173 " parameters are accepted",
7175 if self.lu.op.live is not None:
7177 self.lu.op.mode = constants.HT_MIGRATION_LIVE
7179 self.lu.op.mode = constants.HT_MIGRATION_NONLIVE
7180 # reset the 'live' parameter to None so that repeated
7181 # invocations of CheckPrereq do not raise an exception
7182 self.lu.op.live = None
7183 elif self.lu.op.mode is None:
7184 # read the default value from the hypervisor
7185 i_hv = self.cfg.GetClusterInfo().FillHV(self.instance,
7187 self.lu.op.mode = i_hv[constants.HV_MIGRATION_MODE]
7189 self.live = self.lu.op.mode == constants.HT_MIGRATION_LIVE
7191 # Failover is never live
7194 def _RunAllocator(self):
7195 """Run the allocator based on input opcode.
7198 ial = IAllocator(self.cfg, self.rpc,
7199 mode=constants.IALLOCATOR_MODE_RELOC,
7200 name=self.instance_name,
7201 # TODO See why hail breaks with a single node below
7202 relocate_from=[self.instance.primary_node,
7203 self.instance.primary_node],
7206 ial.Run(self.lu.op.iallocator)
7209 raise errors.OpPrereqError("Can't compute nodes using"
7210 " iallocator '%s': %s" %
7211 (self.lu.op.iallocator, ial.info),
7213 if len(ial.result) != ial.required_nodes:
7214 raise errors.OpPrereqError("iallocator '%s' returned invalid number"
7215 " of nodes (%s), required %s" %
7216 (self.lu.op.iallocator, len(ial.result),
7217 ial.required_nodes), errors.ECODE_FAULT)
7218 self.target_node = ial.result[0]
7219 self.lu.LogInfo("Selected nodes for instance %s via iallocator %s: %s",
7220 self.instance_name, self.lu.op.iallocator,
7221 utils.CommaJoin(ial.result))
7223 def _WaitUntilSync(self):
7224 """Poll with custom rpc for disk sync.
7226 This uses our own step-based rpc call.
7229 self.feedback_fn("* wait until resync is done")
7233 result = self.rpc.call_drbd_wait_sync(self.all_nodes,
7235 self.instance.disks)
7237 for node, nres in result.items():
7238 nres.Raise("Cannot resync disks on node %s" % node)
7239 node_done, node_percent = nres.payload
7240 all_done = all_done and node_done
7241 if node_percent is not None:
7242 min_percent = min(min_percent, node_percent)
7244 if min_percent < 100:
7245 self.feedback_fn(" - progress: %.1f%%" % min_percent)
7248 def _EnsureSecondary(self, node):
7249 """Demote a node to secondary.
7252 self.feedback_fn("* switching node %s to secondary mode" % node)
7254 for dev in self.instance.disks:
7255 self.cfg.SetDiskID(dev, node)
7257 result = self.rpc.call_blockdev_close(node, self.instance.name,
7258 self.instance.disks)
7259 result.Raise("Cannot change disk to secondary on node %s" % node)
7261 def _GoStandalone(self):
7262 """Disconnect from the network.
7265 self.feedback_fn("* changing into standalone mode")
7266 result = self.rpc.call_drbd_disconnect_net(self.all_nodes, self.nodes_ip,
7267 self.instance.disks)
7268 for node, nres in result.items():
7269 nres.Raise("Cannot disconnect disks node %s" % node)
7271 def _GoReconnect(self, multimaster):
7272 """Reconnect to the network.
7278 msg = "single-master"
7279 self.feedback_fn("* changing disks into %s mode" % msg)
7280 result = self.rpc.call_drbd_attach_net(self.all_nodes, self.nodes_ip,
7281 self.instance.disks,
7282 self.instance.name, multimaster)
7283 for node, nres in result.items():
7284 nres.Raise("Cannot change disks config on node %s" % node)
7286 def _ExecCleanup(self):
7287 """Try to cleanup after a failed migration.
7289 The cleanup is done by:
7290 - check that the instance is running only on one node
7291 (and update the config if needed)
7292 - change disks on its secondary node to secondary
7293 - wait until disks are fully synchronized
7294 - disconnect from the network
7295 - change disks into single-master mode
7296 - wait again until disks are fully synchronized
7299 instance = self.instance
7300 target_node = self.target_node
7301 source_node = self.source_node
7303 # check running on only one node
7304 self.feedback_fn("* checking where the instance actually runs"
7305 " (if this hangs, the hypervisor might be in"
7307 ins_l = self.rpc.call_instance_list(self.all_nodes, [instance.hypervisor])
7308 for node, result in ins_l.items():
7309 result.Raise("Can't contact node %s" % node)
7311 runningon_source = instance.name in ins_l[source_node].payload
7312 runningon_target = instance.name in ins_l[target_node].payload
7314 if runningon_source and runningon_target:
7315 raise errors.OpExecError("Instance seems to be running on two nodes,"
7316 " or the hypervisor is confused; you will have"
7317 " to ensure manually that it runs only on one"
7318 " and restart this operation")
7320 if not (runningon_source or runningon_target):
7321 raise errors.OpExecError("Instance does not seem to be running at all;"
7322 " in this case it's safer to repair by"
7323 " running 'gnt-instance stop' to ensure disk"
7324 " shutdown, and then restarting it")
7326 if runningon_target:
7327 # the migration has actually succeeded, we need to update the config
7328 self.feedback_fn("* instance running on secondary node (%s),"
7329 " updating config" % target_node)
7330 instance.primary_node = target_node
7331 self.cfg.Update(instance, self.feedback_fn)
7332 demoted_node = source_node
7334 self.feedback_fn("* instance confirmed to be running on its"
7335 " primary node (%s)" % source_node)
7336 demoted_node = target_node
7338 if instance.disk_template in constants.DTS_INT_MIRROR:
7339 self._EnsureSecondary(demoted_node)
7341 self._WaitUntilSync()
7342 except errors.OpExecError:
7343 # we ignore here errors, since if the device is standalone, it
7344 # won't be able to sync
7346 self._GoStandalone()
7347 self._GoReconnect(False)
7348 self._WaitUntilSync()
7350 self.feedback_fn("* done")
7352 def _RevertDiskStatus(self):
7353 """Try to revert the disk status after a failed migration.
7356 target_node = self.target_node
7357 if self.instance.disk_template in constants.DTS_EXT_MIRROR:
7361 self._EnsureSecondary(target_node)
7362 self._GoStandalone()
7363 self._GoReconnect(False)
7364 self._WaitUntilSync()
7365 except errors.OpExecError, err:
7366 self.lu.LogWarning("Migration failed and I can't reconnect the drives,"
7367 " please try to recover the instance manually;"
7368 " error '%s'" % str(err))
7370 def _AbortMigration(self):
7371 """Call the hypervisor code to abort a started migration.
7374 instance = self.instance
7375 target_node = self.target_node
7376 migration_info = self.migration_info
7378 abort_result = self.rpc.call_finalize_migration(target_node,
7382 abort_msg = abort_result.fail_msg
7384 logging.error("Aborting migration failed on target node %s: %s",
7385 target_node, abort_msg)
7386 # Don't raise an exception here, as we stil have to try to revert the
7387 # disk status, even if this step failed.
7389 def _ExecMigration(self):
7390 """Migrate an instance.
7392 The migrate is done by:
7393 - change the disks into dual-master mode
7394 - wait until disks are fully synchronized again
7395 - migrate the instance
7396 - change disks on the new secondary node (the old primary) to secondary
7397 - wait until disks are fully synchronized
7398 - change disks into single-master mode
7401 instance = self.instance
7402 target_node = self.target_node
7403 source_node = self.source_node
7405 self.feedback_fn("* checking disk consistency between source and target")
7406 for dev in instance.disks:
7407 if not _CheckDiskConsistency(self.lu, dev, target_node, False):
7408 raise errors.OpExecError("Disk %s is degraded or not fully"
7409 " synchronized on target node,"
7410 " aborting migration" % dev.iv_name)
7412 # First get the migration information from the remote node
7413 result = self.rpc.call_migration_info(source_node, instance)
7414 msg = result.fail_msg
7416 log_err = ("Failed fetching source migration information from %s: %s" %
7418 logging.error(log_err)
7419 raise errors.OpExecError(log_err)
7421 self.migration_info = migration_info = result.payload
7423 if self.instance.disk_template not in constants.DTS_EXT_MIRROR:
7424 # Then switch the disks to master/master mode
7425 self._EnsureSecondary(target_node)
7426 self._GoStandalone()
7427 self._GoReconnect(True)
7428 self._WaitUntilSync()
7430 self.feedback_fn("* preparing %s to accept the instance" % target_node)
7431 result = self.rpc.call_accept_instance(target_node,
7434 self.nodes_ip[target_node])
7436 msg = result.fail_msg
7438 logging.error("Instance pre-migration failed, trying to revert"
7439 " disk status: %s", msg)
7440 self.feedback_fn("Pre-migration failed, aborting")
7441 self._AbortMigration()
7442 self._RevertDiskStatus()
7443 raise errors.OpExecError("Could not pre-migrate instance %s: %s" %
7444 (instance.name, msg))
7446 self.feedback_fn("* migrating instance to %s" % target_node)
7447 result = self.rpc.call_instance_migrate(source_node, instance,
7448 self.nodes_ip[target_node],
7450 msg = result.fail_msg
7452 logging.error("Instance migration failed, trying to revert"
7453 " disk status: %s", msg)
7454 self.feedback_fn("Migration failed, aborting")
7455 self._AbortMigration()
7456 self._RevertDiskStatus()
7457 raise errors.OpExecError("Could not migrate instance %s: %s" %
7458 (instance.name, msg))
7460 instance.primary_node = target_node
7461 # distribute new instance config to the other nodes
7462 self.cfg.Update(instance, self.feedback_fn)
7464 result = self.rpc.call_finalize_migration(target_node,
7468 msg = result.fail_msg
7470 logging.error("Instance migration succeeded, but finalization failed:"
7472 raise errors.OpExecError("Could not finalize instance migration: %s" %
7475 if self.instance.disk_template not in constants.DTS_EXT_MIRROR:
7476 self._EnsureSecondary(source_node)
7477 self._WaitUntilSync()
7478 self._GoStandalone()
7479 self._GoReconnect(False)
7480 self._WaitUntilSync()
7482 self.feedback_fn("* done")
7484 def _ExecFailover(self):
7485 """Failover an instance.
7487 The failover is done by shutting it down on its present node and
7488 starting it on the secondary.
7491 instance = self.instance
7492 primary_node = self.cfg.GetNodeInfo(instance.primary_node)
7494 source_node = instance.primary_node
7495 target_node = self.target_node
7497 if instance.admin_up:
7498 self.feedback_fn("* checking disk consistency between source and target")
7499 for dev in instance.disks:
7500 # for drbd, these are drbd over lvm
7501 if not _CheckDiskConsistency(self.lu, dev, target_node, False):
7502 if primary_node.offline:
7503 self.feedback_fn("Node %s is offline, ignoring degraded disk %s on"
7505 (primary_node.name, dev.iv_name, target_node))
7506 elif not self.ignore_consistency:
7507 raise errors.OpExecError("Disk %s is degraded on target node,"
7508 " aborting failover" % dev.iv_name)
7510 self.feedback_fn("* not checking disk consistency as instance is not"
7513 self.feedback_fn("* shutting down instance on source node")
7514 logging.info("Shutting down instance %s on node %s",
7515 instance.name, source_node)
7517 result = self.rpc.call_instance_shutdown(source_node, instance,
7518 self.shutdown_timeout)
7519 msg = result.fail_msg
7521 if self.ignore_consistency or primary_node.offline:
7522 self.lu.LogWarning("Could not shutdown instance %s on node %s,"
7523 " proceeding anyway; please make sure node"
7524 " %s is down; error details: %s",
7525 instance.name, source_node, source_node, msg)
7527 raise errors.OpExecError("Could not shutdown instance %s on"
7529 (instance.name, source_node, msg))
7531 self.feedback_fn("* deactivating the instance's disks on source node")
7532 if not _ShutdownInstanceDisks(self.lu, instance, ignore_primary=True):
7533 raise errors.OpExecError("Can't shut down the instance's disks")
7535 instance.primary_node = target_node
7536 # distribute new instance config to the other nodes
7537 self.cfg.Update(instance, self.feedback_fn)
7539 # Only start the instance if it's marked as up
7540 if instance.admin_up:
7541 self.feedback_fn("* activating the instance's disks on target node %s" %
7543 logging.info("Starting instance %s on node %s",
7544 instance.name, target_node)
7546 disks_ok, _ = _AssembleInstanceDisks(self.lu, instance,
7547 ignore_secondaries=True)
7549 _ShutdownInstanceDisks(self.lu, instance)
7550 raise errors.OpExecError("Can't activate the instance's disks")
7552 self.feedback_fn("* starting the instance on the target node %s" %
7554 result = self.rpc.call_instance_start(target_node, instance, None, None,
7556 msg = result.fail_msg
7558 _ShutdownInstanceDisks(self.lu, instance)
7559 raise errors.OpExecError("Could not start instance %s on node %s: %s" %
7560 (instance.name, target_node, msg))
7562 def Exec(self, feedback_fn):
7563 """Perform the migration.
7566 self.feedback_fn = feedback_fn
7567 self.source_node = self.instance.primary_node
7569 # FIXME: if we implement migrate-to-any in DRBD, this needs fixing
7570 if self.instance.disk_template in constants.DTS_INT_MIRROR:
7571 self.target_node = self.instance.secondary_nodes[0]
7572 # Otherwise self.target_node has been populated either
7573 # directly, or through an iallocator.
7575 self.all_nodes = [self.source_node, self.target_node]
7576 self.nodes_ip = dict((name, node.secondary_ip) for (name, node)
7577 in self.cfg.GetMultiNodeInfo(self.all_nodes))
7580 feedback_fn("Failover instance %s" % self.instance.name)
7581 self._ExecFailover()
7583 feedback_fn("Migrating instance %s" % self.instance.name)
7586 return self._ExecCleanup()
7588 return self._ExecMigration()
7591 def _CreateBlockDev(lu, node, instance, device, force_create,
7593 """Create a tree of block devices on a given node.
7595 If this device type has to be created on secondaries, create it and
7598 If not, just recurse to children keeping the same 'force' value.
7600 @param lu: the lu on whose behalf we execute
7601 @param node: the node on which to create the device
7602 @type instance: L{objects.Instance}
7603 @param instance: the instance which owns the device
7604 @type device: L{objects.Disk}
7605 @param device: the device to create
7606 @type force_create: boolean
7607 @param force_create: whether to force creation of this device; this
7608 will be change to True whenever we find a device which has
7609 CreateOnSecondary() attribute
7610 @param info: the extra 'metadata' we should attach to the device
7611 (this will be represented as a LVM tag)
7612 @type force_open: boolean
7613 @param force_open: this parameter will be passes to the
7614 L{backend.BlockdevCreate} function where it specifies
7615 whether we run on primary or not, and it affects both
7616 the child assembly and the device own Open() execution
7619 if device.CreateOnSecondary():
7623 for child in device.children:
7624 _CreateBlockDev(lu, node, instance, child, force_create,
7627 if not force_create:
7630 _CreateSingleBlockDev(lu, node, instance, device, info, force_open)
7633 def _CreateSingleBlockDev(lu, node, instance, device, info, force_open):
7634 """Create a single block device on a given node.
7636 This will not recurse over children of the device, so they must be
7639 @param lu: the lu on whose behalf we execute
7640 @param node: the node on which to create the device
7641 @type instance: L{objects.Instance}
7642 @param instance: the instance which owns the device
7643 @type device: L{objects.Disk}
7644 @param device: the device to create
7645 @param info: the extra 'metadata' we should attach to the device
7646 (this will be represented as a LVM tag)
7647 @type force_open: boolean
7648 @param force_open: this parameter will be passes to the
7649 L{backend.BlockdevCreate} function where it specifies
7650 whether we run on primary or not, and it affects both
7651 the child assembly and the device own Open() execution
7654 lu.cfg.SetDiskID(device, node)
7655 result = lu.rpc.call_blockdev_create(node, device, device.size,
7656 instance.name, force_open, info)
7657 result.Raise("Can't create block device %s on"
7658 " node %s for instance %s" % (device, node, instance.name))
7659 if device.physical_id is None:
7660 device.physical_id = result.payload
7663 def _GenerateUniqueNames(lu, exts):
7664 """Generate a suitable LV name.
7666 This will generate a logical volume name for the given instance.
7671 new_id = lu.cfg.GenerateUniqueID(lu.proc.GetECId())
7672 results.append("%s%s" % (new_id, val))
7676 def _GenerateDRBD8Branch(lu, primary, secondary, size, vgnames, names,
7677 iv_name, p_minor, s_minor):
7678 """Generate a drbd8 device complete with its children.
7681 assert len(vgnames) == len(names) == 2
7682 port = lu.cfg.AllocatePort()
7683 shared_secret = lu.cfg.GenerateDRBDSecret(lu.proc.GetECId())
7684 dev_data = objects.Disk(dev_type=constants.LD_LV, size=size,
7685 logical_id=(vgnames[0], names[0]))
7686 dev_meta = objects.Disk(dev_type=constants.LD_LV, size=128,
7687 logical_id=(vgnames[1], names[1]))
7688 drbd_dev = objects.Disk(dev_type=constants.LD_DRBD8, size=size,
7689 logical_id=(primary, secondary, port,
7692 children=[dev_data, dev_meta],
7697 def _GenerateDiskTemplate(lu, template_name,
7698 instance_name, primary_node,
7699 secondary_nodes, disk_info,
7700 file_storage_dir, file_driver,
7701 base_index, feedback_fn):
7702 """Generate the entire disk layout for a given template type.
7705 #TODO: compute space requirements
7707 vgname = lu.cfg.GetVGName()
7708 disk_count = len(disk_info)
7710 if template_name == constants.DT_DISKLESS:
7712 elif template_name == constants.DT_PLAIN:
7713 if len(secondary_nodes) != 0:
7714 raise errors.ProgrammerError("Wrong template configuration")
7716 names = _GenerateUniqueNames(lu, [".disk%d" % (base_index + i)
7717 for i in range(disk_count)])
7718 for idx, disk in enumerate(disk_info):
7719 disk_index = idx + base_index
7720 vg = disk.get(constants.IDISK_VG, vgname)
7721 feedback_fn("* disk %i, vg %s, name %s" % (idx, vg, names[idx]))
7722 disk_dev = objects.Disk(dev_type=constants.LD_LV,
7723 size=disk[constants.IDISK_SIZE],
7724 logical_id=(vg, names[idx]),
7725 iv_name="disk/%d" % disk_index,
7726 mode=disk[constants.IDISK_MODE])
7727 disks.append(disk_dev)
7728 elif template_name == constants.DT_DRBD8:
7729 if len(secondary_nodes) != 1:
7730 raise errors.ProgrammerError("Wrong template configuration")
7731 remote_node = secondary_nodes[0]
7732 minors = lu.cfg.AllocateDRBDMinor(
7733 [primary_node, remote_node] * len(disk_info), instance_name)
7736 for lv_prefix in _GenerateUniqueNames(lu, [".disk%d" % (base_index + i)
7737 for i in range(disk_count)]):
7738 names.append(lv_prefix + "_data")
7739 names.append(lv_prefix + "_meta")
7740 for idx, disk in enumerate(disk_info):
7741 disk_index = idx + base_index
7742 data_vg = disk.get(constants.IDISK_VG, vgname)
7743 meta_vg = disk.get(constants.IDISK_METAVG, data_vg)
7744 disk_dev = _GenerateDRBD8Branch(lu, primary_node, remote_node,
7745 disk[constants.IDISK_SIZE],
7747 names[idx * 2:idx * 2 + 2],
7748 "disk/%d" % disk_index,
7749 minors[idx * 2], minors[idx * 2 + 1])
7750 disk_dev.mode = disk[constants.IDISK_MODE]
7751 disks.append(disk_dev)
7752 elif template_name == constants.DT_FILE:
7753 if len(secondary_nodes) != 0:
7754 raise errors.ProgrammerError("Wrong template configuration")
7756 opcodes.RequireFileStorage()
7758 for idx, disk in enumerate(disk_info):
7759 disk_index = idx + base_index
7760 disk_dev = objects.Disk(dev_type=constants.LD_FILE,
7761 size=disk[constants.IDISK_SIZE],
7762 iv_name="disk/%d" % disk_index,
7763 logical_id=(file_driver,
7764 "%s/disk%d" % (file_storage_dir,
7766 mode=disk[constants.IDISK_MODE])
7767 disks.append(disk_dev)
7768 elif template_name == constants.DT_SHARED_FILE:
7769 if len(secondary_nodes) != 0:
7770 raise errors.ProgrammerError("Wrong template configuration")
7772 opcodes.RequireSharedFileStorage()
7774 for idx, disk in enumerate(disk_info):
7775 disk_index = idx + base_index
7776 disk_dev = objects.Disk(dev_type=constants.LD_FILE,
7777 size=disk[constants.IDISK_SIZE],
7778 iv_name="disk/%d" % disk_index,
7779 logical_id=(file_driver,
7780 "%s/disk%d" % (file_storage_dir,
7782 mode=disk[constants.IDISK_MODE])
7783 disks.append(disk_dev)
7784 elif template_name == constants.DT_BLOCK:
7785 if len(secondary_nodes) != 0:
7786 raise errors.ProgrammerError("Wrong template configuration")
7788 for idx, disk in enumerate(disk_info):
7789 disk_index = idx + base_index
7790 disk_dev = objects.Disk(dev_type=constants.LD_BLOCKDEV,
7791 size=disk[constants.IDISK_SIZE],
7792 logical_id=(constants.BLOCKDEV_DRIVER_MANUAL,
7793 disk[constants.IDISK_ADOPT]),
7794 iv_name="disk/%d" % disk_index,
7795 mode=disk[constants.IDISK_MODE])
7796 disks.append(disk_dev)
7799 raise errors.ProgrammerError("Invalid disk template '%s'" % template_name)
7803 def _GetInstanceInfoText(instance):
7804 """Compute that text that should be added to the disk's metadata.
7807 return "originstname+%s" % instance.name
7810 def _CalcEta(time_taken, written, total_size):
7811 """Calculates the ETA based on size written and total size.
7813 @param time_taken: The time taken so far
7814 @param written: amount written so far
7815 @param total_size: The total size of data to be written
7816 @return: The remaining time in seconds
7819 avg_time = time_taken / float(written)
7820 return (total_size - written) * avg_time
7823 def _WipeDisks(lu, instance):
7824 """Wipes instance disks.
7826 @type lu: L{LogicalUnit}
7827 @param lu: the logical unit on whose behalf we execute
7828 @type instance: L{objects.Instance}
7829 @param instance: the instance whose disks we should create
7830 @return: the success of the wipe
7833 node = instance.primary_node
7835 for device in instance.disks:
7836 lu.cfg.SetDiskID(device, node)
7838 logging.info("Pause sync of instance %s disks", instance.name)
7839 result = lu.rpc.call_blockdev_pause_resume_sync(node, instance.disks, True)
7841 for idx, success in enumerate(result.payload):
7843 logging.warn("pause-sync of instance %s for disks %d failed",
7847 for idx, device in enumerate(instance.disks):
7848 # The wipe size is MIN_WIPE_CHUNK_PERCENT % of the instance disk but
7849 # MAX_WIPE_CHUNK at max
7850 wipe_chunk_size = min(constants.MAX_WIPE_CHUNK, device.size / 100.0 *
7851 constants.MIN_WIPE_CHUNK_PERCENT)
7852 # we _must_ make this an int, otherwise rounding errors will
7854 wipe_chunk_size = int(wipe_chunk_size)
7856 lu.LogInfo("* Wiping disk %d", idx)
7857 logging.info("Wiping disk %d for instance %s, node %s using"
7858 " chunk size %s", idx, instance.name, node, wipe_chunk_size)
7863 start_time = time.time()
7865 while offset < size:
7866 wipe_size = min(wipe_chunk_size, size - offset)
7867 logging.debug("Wiping disk %d, offset %s, chunk %s",
7868 idx, offset, wipe_size)
7869 result = lu.rpc.call_blockdev_wipe(node, device, offset, wipe_size)
7870 result.Raise("Could not wipe disk %d at offset %d for size %d" %
7871 (idx, offset, wipe_size))
7874 if now - last_output >= 60:
7875 eta = _CalcEta(now - start_time, offset, size)
7876 lu.LogInfo(" - done: %.1f%% ETA: %s" %
7877 (offset / float(size) * 100, utils.FormatSeconds(eta)))
7880 logging.info("Resume sync of instance %s disks", instance.name)
7882 result = lu.rpc.call_blockdev_pause_resume_sync(node, instance.disks, False)
7884 for idx, success in enumerate(result.payload):
7886 lu.LogWarning("Resume sync of disk %d failed, please have a"
7887 " look at the status and troubleshoot the issue", idx)
7888 logging.warn("resume-sync of instance %s for disks %d failed",
7892 def _CreateDisks(lu, instance, to_skip=None, target_node=None):
7893 """Create all disks for an instance.
7895 This abstracts away some work from AddInstance.
7897 @type lu: L{LogicalUnit}
7898 @param lu: the logical unit on whose behalf we execute
7899 @type instance: L{objects.Instance}
7900 @param instance: the instance whose disks we should create
7902 @param to_skip: list of indices to skip
7903 @type target_node: string
7904 @param target_node: if passed, overrides the target node for creation
7906 @return: the success of the creation
7909 info = _GetInstanceInfoText(instance)
7910 if target_node is None:
7911 pnode = instance.primary_node
7912 all_nodes = instance.all_nodes
7917 if instance.disk_template in constants.DTS_FILEBASED:
7918 file_storage_dir = os.path.dirname(instance.disks[0].logical_id[1])
7919 result = lu.rpc.call_file_storage_dir_create(pnode, file_storage_dir)
7921 result.Raise("Failed to create directory '%s' on"
7922 " node %s" % (file_storage_dir, pnode))
7924 # Note: this needs to be kept in sync with adding of disks in
7925 # LUInstanceSetParams
7926 for idx, device in enumerate(instance.disks):
7927 if to_skip and idx in to_skip:
7929 logging.info("Creating volume %s for instance %s",
7930 device.iv_name, instance.name)
7932 for node in all_nodes:
7933 f_create = node == pnode
7934 _CreateBlockDev(lu, node, instance, device, f_create, info, f_create)
7937 def _RemoveDisks(lu, instance, target_node=None):
7938 """Remove all disks for an instance.
7940 This abstracts away some work from `AddInstance()` and
7941 `RemoveInstance()`. Note that in case some of the devices couldn't
7942 be removed, the removal will continue with the other ones (compare
7943 with `_CreateDisks()`).
7945 @type lu: L{LogicalUnit}
7946 @param lu: the logical unit on whose behalf we execute
7947 @type instance: L{objects.Instance}
7948 @param instance: the instance whose disks we should remove
7949 @type target_node: string
7950 @param target_node: used to override the node on which to remove the disks
7952 @return: the success of the removal
7955 logging.info("Removing block devices for instance %s", instance.name)
7958 for device in instance.disks:
7960 edata = [(target_node, device)]
7962 edata = device.ComputeNodeTree(instance.primary_node)
7963 for node, disk in edata:
7964 lu.cfg.SetDiskID(disk, node)
7965 msg = lu.rpc.call_blockdev_remove(node, disk).fail_msg
7967 lu.LogWarning("Could not remove block device %s on node %s,"
7968 " continuing anyway: %s", device.iv_name, node, msg)
7971 # if this is a DRBD disk, return its port to the pool
7972 if device.dev_type in constants.LDS_DRBD:
7973 tcp_port = device.logical_id[2]
7974 lu.cfg.AddTcpUdpPort(tcp_port)
7976 if instance.disk_template == constants.DT_FILE:
7977 file_storage_dir = os.path.dirname(instance.disks[0].logical_id[1])
7981 tgt = instance.primary_node
7982 result = lu.rpc.call_file_storage_dir_remove(tgt, file_storage_dir)
7984 lu.LogWarning("Could not remove directory '%s' on node %s: %s",
7985 file_storage_dir, instance.primary_node, result.fail_msg)
7991 def _ComputeDiskSizePerVG(disk_template, disks):
7992 """Compute disk size requirements in the volume group
7995 def _compute(disks, payload):
7996 """Universal algorithm.
8001 vgs[disk[constants.IDISK_VG]] = \
8002 vgs.get(constants.IDISK_VG, 0) + disk[constants.IDISK_SIZE] + payload
8006 # Required free disk space as a function of disk and swap space
8008 constants.DT_DISKLESS: {},
8009 constants.DT_PLAIN: _compute(disks, 0),
8010 # 128 MB are added for drbd metadata for each disk
8011 constants.DT_DRBD8: _compute(disks, 128),
8012 constants.DT_FILE: {},
8013 constants.DT_SHARED_FILE: {},
8016 if disk_template not in req_size_dict:
8017 raise errors.ProgrammerError("Disk template '%s' size requirement"
8018 " is unknown" % disk_template)
8020 return req_size_dict[disk_template]
8023 def _ComputeDiskSize(disk_template, disks):
8024 """Compute disk size requirements in the volume group
8027 # Required free disk space as a function of disk and swap space
8029 constants.DT_DISKLESS: None,
8030 constants.DT_PLAIN: sum(d[constants.IDISK_SIZE] for d in disks),
8031 # 128 MB are added for drbd metadata for each disk
8032 constants.DT_DRBD8: sum(d[constants.IDISK_SIZE] + 128 for d in disks),
8033 constants.DT_FILE: None,
8034 constants.DT_SHARED_FILE: 0,
8035 constants.DT_BLOCK: 0,
8038 if disk_template not in req_size_dict:
8039 raise errors.ProgrammerError("Disk template '%s' size requirement"
8040 " is unknown" % disk_template)
8042 return req_size_dict[disk_template]
8045 def _FilterVmNodes(lu, nodenames):
8046 """Filters out non-vm_capable nodes from a list.
8048 @type lu: L{LogicalUnit}
8049 @param lu: the logical unit for which we check
8050 @type nodenames: list
8051 @param nodenames: the list of nodes on which we should check
8053 @return: the list of vm-capable nodes
8056 vm_nodes = frozenset(lu.cfg.GetNonVmCapableNodeList())
8057 return [name for name in nodenames if name not in vm_nodes]
8060 def _CheckHVParams(lu, nodenames, hvname, hvparams):
8061 """Hypervisor parameter validation.
8063 This function abstract the hypervisor parameter validation to be
8064 used in both instance create and instance modify.
8066 @type lu: L{LogicalUnit}
8067 @param lu: the logical unit for which we check
8068 @type nodenames: list
8069 @param nodenames: the list of nodes on which we should check
8070 @type hvname: string
8071 @param hvname: the name of the hypervisor we should use
8072 @type hvparams: dict
8073 @param hvparams: the parameters which we need to check
8074 @raise errors.OpPrereqError: if the parameters are not valid
8077 nodenames = _FilterVmNodes(lu, nodenames)
8078 hvinfo = lu.rpc.call_hypervisor_validate_params(nodenames,
8081 for node in nodenames:
8085 info.Raise("Hypervisor parameter validation failed on node %s" % node)
8088 def _CheckOSParams(lu, required, nodenames, osname, osparams):
8089 """OS parameters validation.
8091 @type lu: L{LogicalUnit}
8092 @param lu: the logical unit for which we check
8093 @type required: boolean
8094 @param required: whether the validation should fail if the OS is not
8096 @type nodenames: list
8097 @param nodenames: the list of nodes on which we should check
8098 @type osname: string
8099 @param osname: the name of the hypervisor we should use
8100 @type osparams: dict
8101 @param osparams: the parameters which we need to check
8102 @raise errors.OpPrereqError: if the parameters are not valid
8105 nodenames = _FilterVmNodes(lu, nodenames)
8106 result = lu.rpc.call_os_validate(required, nodenames, osname,
8107 [constants.OS_VALIDATE_PARAMETERS],
8109 for node, nres in result.items():
8110 # we don't check for offline cases since this should be run only
8111 # against the master node and/or an instance's nodes
8112 nres.Raise("OS Parameters validation failed on node %s" % node)
8113 if not nres.payload:
8114 lu.LogInfo("OS %s not found on node %s, validation skipped",
8118 class LUInstanceCreate(LogicalUnit):
8119 """Create an instance.
8122 HPATH = "instance-add"
8123 HTYPE = constants.HTYPE_INSTANCE
8126 def CheckArguments(self):
8130 # do not require name_check to ease forward/backward compatibility
8132 if self.op.no_install and self.op.start:
8133 self.LogInfo("No-installation mode selected, disabling startup")
8134 self.op.start = False
8135 # validate/normalize the instance name
8136 self.op.instance_name = \
8137 netutils.Hostname.GetNormalizedName(self.op.instance_name)
8139 if self.op.ip_check and not self.op.name_check:
8140 # TODO: make the ip check more flexible and not depend on the name check
8141 raise errors.OpPrereqError("Cannot do IP address check without a name"
8142 " check", errors.ECODE_INVAL)
8144 # check nics' parameter names
8145 for nic in self.op.nics:
8146 utils.ForceDictType(nic, constants.INIC_PARAMS_TYPES)
8148 # check disks. parameter names and consistent adopt/no-adopt strategy
8149 has_adopt = has_no_adopt = False
8150 for disk in self.op.disks:
8151 utils.ForceDictType(disk, constants.IDISK_PARAMS_TYPES)
8152 if constants.IDISK_ADOPT in disk:
8156 if has_adopt and has_no_adopt:
8157 raise errors.OpPrereqError("Either all disks are adopted or none is",
8160 if self.op.disk_template not in constants.DTS_MAY_ADOPT:
8161 raise errors.OpPrereqError("Disk adoption is not supported for the"
8162 " '%s' disk template" %
8163 self.op.disk_template,
8165 if self.op.iallocator is not None:
8166 raise errors.OpPrereqError("Disk adoption not allowed with an"
8167 " iallocator script", errors.ECODE_INVAL)
8168 if self.op.mode == constants.INSTANCE_IMPORT:
8169 raise errors.OpPrereqError("Disk adoption not allowed for"
8170 " instance import", errors.ECODE_INVAL)
8172 if self.op.disk_template in constants.DTS_MUST_ADOPT:
8173 raise errors.OpPrereqError("Disk template %s requires disk adoption,"
8174 " but no 'adopt' parameter given" %
8175 self.op.disk_template,
8178 self.adopt_disks = has_adopt
8180 # instance name verification
8181 if self.op.name_check:
8182 self.hostname1 = netutils.GetHostname(name=self.op.instance_name)
8183 self.op.instance_name = self.hostname1.name
8184 # used in CheckPrereq for ip ping check
8185 self.check_ip = self.hostname1.ip
8187 self.check_ip = None
8189 # file storage checks
8190 if (self.op.file_driver and
8191 not self.op.file_driver in constants.FILE_DRIVER):
8192 raise errors.OpPrereqError("Invalid file driver name '%s'" %
8193 self.op.file_driver, errors.ECODE_INVAL)
8195 if self.op.disk_template == constants.DT_FILE:
8196 opcodes.RequireFileStorage()
8197 elif self.op.disk_template == constants.DT_SHARED_FILE:
8198 opcodes.RequireSharedFileStorage()
8200 ### Node/iallocator related checks
8201 _CheckIAllocatorOrNode(self, "iallocator", "pnode")
8203 if self.op.pnode is not None:
8204 if self.op.disk_template in constants.DTS_INT_MIRROR:
8205 if self.op.snode is None:
8206 raise errors.OpPrereqError("The networked disk templates need"
8207 " a mirror node", errors.ECODE_INVAL)
8209 self.LogWarning("Secondary node will be ignored on non-mirrored disk"
8211 self.op.snode = None
8213 self._cds = _GetClusterDomainSecret()
8215 if self.op.mode == constants.INSTANCE_IMPORT:
8216 # On import force_variant must be True, because if we forced it at
8217 # initial install, our only chance when importing it back is that it
8219 self.op.force_variant = True
8221 if self.op.no_install:
8222 self.LogInfo("No-installation mode has no effect during import")
8224 elif self.op.mode == constants.INSTANCE_CREATE:
8225 if self.op.os_type is None:
8226 raise errors.OpPrereqError("No guest OS specified",
8228 if self.op.os_type in self.cfg.GetClusterInfo().blacklisted_os:
8229 raise errors.OpPrereqError("Guest OS '%s' is not allowed for"
8230 " installation" % self.op.os_type,
8232 if self.op.disk_template is None:
8233 raise errors.OpPrereqError("No disk template specified",
8236 elif self.op.mode == constants.INSTANCE_REMOTE_IMPORT:
8237 # Check handshake to ensure both clusters have the same domain secret
8238 src_handshake = self.op.source_handshake
8239 if not src_handshake:
8240 raise errors.OpPrereqError("Missing source handshake",
8243 errmsg = masterd.instance.CheckRemoteExportHandshake(self._cds,
8246 raise errors.OpPrereqError("Invalid handshake: %s" % errmsg,
8249 # Load and check source CA
8250 self.source_x509_ca_pem = self.op.source_x509_ca
8251 if not self.source_x509_ca_pem:
8252 raise errors.OpPrereqError("Missing source X509 CA",
8256 (cert, _) = utils.LoadSignedX509Certificate(self.source_x509_ca_pem,
8258 except OpenSSL.crypto.Error, err:
8259 raise errors.OpPrereqError("Unable to load source X509 CA (%s)" %
8260 (err, ), errors.ECODE_INVAL)
8262 (errcode, msg) = utils.VerifyX509Certificate(cert, None, None)
8263 if errcode is not None:
8264 raise errors.OpPrereqError("Invalid source X509 CA (%s)" % (msg, ),
8267 self.source_x509_ca = cert
8269 src_instance_name = self.op.source_instance_name
8270 if not src_instance_name:
8271 raise errors.OpPrereqError("Missing source instance name",
8274 self.source_instance_name = \
8275 netutils.GetHostname(name=src_instance_name).name
8278 raise errors.OpPrereqError("Invalid instance creation mode %r" %
8279 self.op.mode, errors.ECODE_INVAL)
8281 def ExpandNames(self):
8282 """ExpandNames for CreateInstance.
8284 Figure out the right locks for instance creation.
8287 self.needed_locks = {}
8289 instance_name = self.op.instance_name
8290 # this is just a preventive check, but someone might still add this
8291 # instance in the meantime, and creation will fail at lock-add time
8292 if instance_name in self.cfg.GetInstanceList():
8293 raise errors.OpPrereqError("Instance '%s' is already in the cluster" %
8294 instance_name, errors.ECODE_EXISTS)
8296 self.add_locks[locking.LEVEL_INSTANCE] = instance_name
8298 if self.op.iallocator:
8299 self.needed_locks[locking.LEVEL_NODE] = locking.ALL_SET
8301 self.op.pnode = _ExpandNodeName(self.cfg, self.op.pnode)
8302 nodelist = [self.op.pnode]
8303 if self.op.snode is not None:
8304 self.op.snode = _ExpandNodeName(self.cfg, self.op.snode)
8305 nodelist.append(self.op.snode)
8306 self.needed_locks[locking.LEVEL_NODE] = nodelist
8308 # in case of import lock the source node too
8309 if self.op.mode == constants.INSTANCE_IMPORT:
8310 src_node = self.op.src_node
8311 src_path = self.op.src_path
8313 if src_path is None:
8314 self.op.src_path = src_path = self.op.instance_name
8316 if src_node is None:
8317 self.needed_locks[locking.LEVEL_NODE] = locking.ALL_SET
8318 self.op.src_node = None
8319 if os.path.isabs(src_path):
8320 raise errors.OpPrereqError("Importing an instance from a path"
8321 " requires a source node option",
8324 self.op.src_node = src_node = _ExpandNodeName(self.cfg, src_node)
8325 if self.needed_locks[locking.LEVEL_NODE] is not locking.ALL_SET:
8326 self.needed_locks[locking.LEVEL_NODE].append(src_node)
8327 if not os.path.isabs(src_path):
8328 self.op.src_path = src_path = \
8329 utils.PathJoin(constants.EXPORT_DIR, src_path)
8331 def _RunAllocator(self):
8332 """Run the allocator based on input opcode.
8335 nics = [n.ToDict() for n in self.nics]
8336 ial = IAllocator(self.cfg, self.rpc,
8337 mode=constants.IALLOCATOR_MODE_ALLOC,
8338 name=self.op.instance_name,
8339 disk_template=self.op.disk_template,
8342 vcpus=self.be_full[constants.BE_VCPUS],
8343 memory=self.be_full[constants.BE_MEMORY],
8346 hypervisor=self.op.hypervisor,
8349 ial.Run(self.op.iallocator)
8352 raise errors.OpPrereqError("Can't compute nodes using"
8353 " iallocator '%s': %s" %
8354 (self.op.iallocator, ial.info),
8356 if len(ial.result) != ial.required_nodes:
8357 raise errors.OpPrereqError("iallocator '%s' returned invalid number"
8358 " of nodes (%s), required %s" %
8359 (self.op.iallocator, len(ial.result),
8360 ial.required_nodes), errors.ECODE_FAULT)
8361 self.op.pnode = ial.result[0]
8362 self.LogInfo("Selected nodes for instance %s via iallocator %s: %s",
8363 self.op.instance_name, self.op.iallocator,
8364 utils.CommaJoin(ial.result))
8365 if ial.required_nodes == 2:
8366 self.op.snode = ial.result[1]
8368 def BuildHooksEnv(self):
8371 This runs on master, primary and secondary nodes of the instance.
8375 "ADD_MODE": self.op.mode,
8377 if self.op.mode == constants.INSTANCE_IMPORT:
8378 env["SRC_NODE"] = self.op.src_node
8379 env["SRC_PATH"] = self.op.src_path
8380 env["SRC_IMAGES"] = self.src_images
8382 env.update(_BuildInstanceHookEnv(
8383 name=self.op.instance_name,
8384 primary_node=self.op.pnode,
8385 secondary_nodes=self.secondaries,
8386 status=self.op.start,
8387 os_type=self.op.os_type,
8388 memory=self.be_full[constants.BE_MEMORY],
8389 vcpus=self.be_full[constants.BE_VCPUS],
8390 nics=_NICListToTuple(self, self.nics),
8391 disk_template=self.op.disk_template,
8392 disks=[(d[constants.IDISK_SIZE], d[constants.IDISK_MODE])
8393 for d in self.disks],
8396 hypervisor_name=self.op.hypervisor,
8402 def BuildHooksNodes(self):
8403 """Build hooks nodes.
8406 nl = [self.cfg.GetMasterNode(), self.op.pnode] + self.secondaries
8409 def _ReadExportInfo(self):
8410 """Reads the export information from disk.
8412 It will override the opcode source node and path with the actual
8413 information, if these two were not specified before.
8415 @return: the export information
8418 assert self.op.mode == constants.INSTANCE_IMPORT
8420 src_node = self.op.src_node
8421 src_path = self.op.src_path
8423 if src_node is None:
8424 locked_nodes = self.owned_locks(locking.LEVEL_NODE)
8425 exp_list = self.rpc.call_export_list(locked_nodes)
8427 for node in exp_list:
8428 if exp_list[node].fail_msg:
8430 if src_path in exp_list[node].payload:
8432 self.op.src_node = src_node = node
8433 self.op.src_path = src_path = utils.PathJoin(constants.EXPORT_DIR,
8437 raise errors.OpPrereqError("No export found for relative path %s" %
8438 src_path, errors.ECODE_INVAL)
8440 _CheckNodeOnline(self, src_node)
8441 result = self.rpc.call_export_info(src_node, src_path)
8442 result.Raise("No export or invalid export found in dir %s" % src_path)
8444 export_info = objects.SerializableConfigParser.Loads(str(result.payload))
8445 if not export_info.has_section(constants.INISECT_EXP):
8446 raise errors.ProgrammerError("Corrupted export config",
8447 errors.ECODE_ENVIRON)
8449 ei_version = export_info.get(constants.INISECT_EXP, "version")
8450 if (int(ei_version) != constants.EXPORT_VERSION):
8451 raise errors.OpPrereqError("Wrong export version %s (wanted %d)" %
8452 (ei_version, constants.EXPORT_VERSION),
8453 errors.ECODE_ENVIRON)
8456 def _ReadExportParams(self, einfo):
8457 """Use export parameters as defaults.
8459 In case the opcode doesn't specify (as in override) some instance
8460 parameters, then try to use them from the export information, if
8464 self.op.os_type = einfo.get(constants.INISECT_EXP, "os")
8466 if self.op.disk_template is None:
8467 if einfo.has_option(constants.INISECT_INS, "disk_template"):
8468 self.op.disk_template = einfo.get(constants.INISECT_INS,
8471 raise errors.OpPrereqError("No disk template specified and the export"
8472 " is missing the disk_template information",
8475 if not self.op.disks:
8476 if einfo.has_option(constants.INISECT_INS, "disk_count"):
8478 # TODO: import the disk iv_name too
8479 for idx in range(einfo.getint(constants.INISECT_INS, "disk_count")):
8480 disk_sz = einfo.getint(constants.INISECT_INS, "disk%d_size" % idx)
8481 disks.append({constants.IDISK_SIZE: disk_sz})
8482 self.op.disks = disks
8484 raise errors.OpPrereqError("No disk info specified and the export"
8485 " is missing the disk information",
8488 if (not self.op.nics and
8489 einfo.has_option(constants.INISECT_INS, "nic_count")):
8491 for idx in range(einfo.getint(constants.INISECT_INS, "nic_count")):
8493 for name in list(constants.NICS_PARAMETERS) + ["ip", "mac"]:
8494 v = einfo.get(constants.INISECT_INS, "nic%d_%s" % (idx, name))
8499 if not self.op.tags and einfo.has_option(constants.INISECT_INS, "tags"):
8500 self.op.tags = einfo.get(constants.INISECT_INS, "tags").split()
8502 if (self.op.hypervisor is None and
8503 einfo.has_option(constants.INISECT_INS, "hypervisor")):
8504 self.op.hypervisor = einfo.get(constants.INISECT_INS, "hypervisor")
8506 if einfo.has_section(constants.INISECT_HYP):
8507 # use the export parameters but do not override the ones
8508 # specified by the user
8509 for name, value in einfo.items(constants.INISECT_HYP):
8510 if name not in self.op.hvparams:
8511 self.op.hvparams[name] = value
8513 if einfo.has_section(constants.INISECT_BEP):
8514 # use the parameters, without overriding
8515 for name, value in einfo.items(constants.INISECT_BEP):
8516 if name not in self.op.beparams:
8517 self.op.beparams[name] = value
8519 # try to read the parameters old style, from the main section
8520 for name in constants.BES_PARAMETERS:
8521 if (name not in self.op.beparams and
8522 einfo.has_option(constants.INISECT_INS, name)):
8523 self.op.beparams[name] = einfo.get(constants.INISECT_INS, name)
8525 if einfo.has_section(constants.INISECT_OSP):
8526 # use the parameters, without overriding
8527 for name, value in einfo.items(constants.INISECT_OSP):
8528 if name not in self.op.osparams:
8529 self.op.osparams[name] = value
8531 def _RevertToDefaults(self, cluster):
8532 """Revert the instance parameters to the default values.
8536 hv_defs = cluster.SimpleFillHV(self.op.hypervisor, self.op.os_type, {})
8537 for name in self.op.hvparams.keys():
8538 if name in hv_defs and hv_defs[name] == self.op.hvparams[name]:
8539 del self.op.hvparams[name]
8541 be_defs = cluster.SimpleFillBE({})
8542 for name in self.op.beparams.keys():
8543 if name in be_defs and be_defs[name] == self.op.beparams[name]:
8544 del self.op.beparams[name]
8546 nic_defs = cluster.SimpleFillNIC({})
8547 for nic in self.op.nics:
8548 for name in constants.NICS_PARAMETERS:
8549 if name in nic and name in nic_defs and nic[name] == nic_defs[name]:
8552 os_defs = cluster.SimpleFillOS(self.op.os_type, {})
8553 for name in self.op.osparams.keys():
8554 if name in os_defs and os_defs[name] == self.op.osparams[name]:
8555 del self.op.osparams[name]
8557 def _CalculateFileStorageDir(self):
8558 """Calculate final instance file storage dir.
8561 # file storage dir calculation/check
8562 self.instance_file_storage_dir = None
8563 if self.op.disk_template in constants.DTS_FILEBASED:
8564 # build the full file storage dir path
8567 if self.op.disk_template == constants.DT_SHARED_FILE:
8568 get_fsd_fn = self.cfg.GetSharedFileStorageDir
8570 get_fsd_fn = self.cfg.GetFileStorageDir
8572 cfg_storagedir = get_fsd_fn()
8573 if not cfg_storagedir:
8574 raise errors.OpPrereqError("Cluster file storage dir not defined")
8575 joinargs.append(cfg_storagedir)
8577 if self.op.file_storage_dir is not None:
8578 joinargs.append(self.op.file_storage_dir)
8580 joinargs.append(self.op.instance_name)
8582 # pylint: disable=W0142
8583 self.instance_file_storage_dir = utils.PathJoin(*joinargs)
8585 def CheckPrereq(self):
8586 """Check prerequisites.
8589 self._CalculateFileStorageDir()
8591 if self.op.mode == constants.INSTANCE_IMPORT:
8592 export_info = self._ReadExportInfo()
8593 self._ReadExportParams(export_info)
8595 if (not self.cfg.GetVGName() and
8596 self.op.disk_template not in constants.DTS_NOT_LVM):
8597 raise errors.OpPrereqError("Cluster does not support lvm-based"
8598 " instances", errors.ECODE_STATE)
8600 if self.op.hypervisor is None:
8601 self.op.hypervisor = self.cfg.GetHypervisorType()
8603 cluster = self.cfg.GetClusterInfo()
8604 enabled_hvs = cluster.enabled_hypervisors
8605 if self.op.hypervisor not in enabled_hvs:
8606 raise errors.OpPrereqError("Selected hypervisor (%s) not enabled in the"
8607 " cluster (%s)" % (self.op.hypervisor,
8608 ",".join(enabled_hvs)),
8611 # Check tag validity
8612 for tag in self.op.tags:
8613 objects.TaggableObject.ValidateTag(tag)
8615 # check hypervisor parameter syntax (locally)
8616 utils.ForceDictType(self.op.hvparams, constants.HVS_PARAMETER_TYPES)
8617 filled_hvp = cluster.SimpleFillHV(self.op.hypervisor, self.op.os_type,
8619 hv_type = hypervisor.GetHypervisor(self.op.hypervisor)
8620 hv_type.CheckParameterSyntax(filled_hvp)
8621 self.hv_full = filled_hvp
8622 # check that we don't specify global parameters on an instance
8623 _CheckGlobalHvParams(self.op.hvparams)
8625 # fill and remember the beparams dict
8626 utils.ForceDictType(self.op.beparams, constants.BES_PARAMETER_TYPES)
8627 self.be_full = cluster.SimpleFillBE(self.op.beparams)
8629 # build os parameters
8630 self.os_full = cluster.SimpleFillOS(self.op.os_type, self.op.osparams)
8632 # now that hvp/bep are in final format, let's reset to defaults,
8634 if self.op.identify_defaults:
8635 self._RevertToDefaults(cluster)
8639 for idx, nic in enumerate(self.op.nics):
8640 nic_mode_req = nic.get(constants.INIC_MODE, None)
8641 nic_mode = nic_mode_req
8642 if nic_mode is None:
8643 nic_mode = cluster.nicparams[constants.PP_DEFAULT][constants.NIC_MODE]
8645 # in routed mode, for the first nic, the default ip is 'auto'
8646 if nic_mode == constants.NIC_MODE_ROUTED and idx == 0:
8647 default_ip_mode = constants.VALUE_AUTO
8649 default_ip_mode = constants.VALUE_NONE
8651 # ip validity checks
8652 ip = nic.get(constants.INIC_IP, default_ip_mode)
8653 if ip is None or ip.lower() == constants.VALUE_NONE:
8655 elif ip.lower() == constants.VALUE_AUTO:
8656 if not self.op.name_check:
8657 raise errors.OpPrereqError("IP address set to auto but name checks"
8658 " have been skipped",
8660 nic_ip = self.hostname1.ip
8662 if not netutils.IPAddress.IsValid(ip):
8663 raise errors.OpPrereqError("Invalid IP address '%s'" % ip,
8667 # TODO: check the ip address for uniqueness
8668 if nic_mode == constants.NIC_MODE_ROUTED and not nic_ip:
8669 raise errors.OpPrereqError("Routed nic mode requires an ip address",
8672 # MAC address verification
8673 mac = nic.get(constants.INIC_MAC, constants.VALUE_AUTO)
8674 if mac not in (constants.VALUE_AUTO, constants.VALUE_GENERATE):
8675 mac = utils.NormalizeAndValidateMac(mac)
8678 self.cfg.ReserveMAC(mac, self.proc.GetECId())
8679 except errors.ReservationError:
8680 raise errors.OpPrereqError("MAC address %s already in use"
8681 " in cluster" % mac,
8682 errors.ECODE_NOTUNIQUE)
8684 # Build nic parameters
8685 link = nic.get(constants.INIC_LINK, None)
8688 nicparams[constants.NIC_MODE] = nic_mode_req
8690 nicparams[constants.NIC_LINK] = link
8692 check_params = cluster.SimpleFillNIC(nicparams)
8693 objects.NIC.CheckParameterSyntax(check_params)
8694 self.nics.append(objects.NIC(mac=mac, ip=nic_ip, nicparams=nicparams))
8696 # disk checks/pre-build
8697 default_vg = self.cfg.GetVGName()
8699 for disk in self.op.disks:
8700 mode = disk.get(constants.IDISK_MODE, constants.DISK_RDWR)
8701 if mode not in constants.DISK_ACCESS_SET:
8702 raise errors.OpPrereqError("Invalid disk access mode '%s'" %
8703 mode, errors.ECODE_INVAL)
8704 size = disk.get(constants.IDISK_SIZE, None)
8706 raise errors.OpPrereqError("Missing disk size", errors.ECODE_INVAL)
8709 except (TypeError, ValueError):
8710 raise errors.OpPrereqError("Invalid disk size '%s'" % size,
8713 data_vg = disk.get(constants.IDISK_VG, default_vg)
8715 constants.IDISK_SIZE: size,
8716 constants.IDISK_MODE: mode,
8717 constants.IDISK_VG: data_vg,
8718 constants.IDISK_METAVG: disk.get(constants.IDISK_METAVG, data_vg),
8720 if constants.IDISK_ADOPT in disk:
8721 new_disk[constants.IDISK_ADOPT] = disk[constants.IDISK_ADOPT]
8722 self.disks.append(new_disk)
8724 if self.op.mode == constants.INSTANCE_IMPORT:
8726 # Check that the new instance doesn't have less disks than the export
8727 instance_disks = len(self.disks)
8728 export_disks = export_info.getint(constants.INISECT_INS, 'disk_count')
8729 if instance_disks < export_disks:
8730 raise errors.OpPrereqError("Not enough disks to import."
8731 " (instance: %d, export: %d)" %
8732 (instance_disks, export_disks),
8736 for idx in range(export_disks):
8737 option = "disk%d_dump" % idx
8738 if export_info.has_option(constants.INISECT_INS, option):
8739 # FIXME: are the old os-es, disk sizes, etc. useful?
8740 export_name = export_info.get(constants.INISECT_INS, option)
8741 image = utils.PathJoin(self.op.src_path, export_name)
8742 disk_images.append(image)
8744 disk_images.append(False)
8746 self.src_images = disk_images
8748 old_name = export_info.get(constants.INISECT_INS, "name")
8750 exp_nic_count = export_info.getint(constants.INISECT_INS, "nic_count")
8751 except (TypeError, ValueError), err:
8752 raise errors.OpPrereqError("Invalid export file, nic_count is not"
8753 " an integer: %s" % str(err),
8755 if self.op.instance_name == old_name:
8756 for idx, nic in enumerate(self.nics):
8757 if nic.mac == constants.VALUE_AUTO and exp_nic_count >= idx:
8758 nic_mac_ini = "nic%d_mac" % idx
8759 nic.mac = export_info.get(constants.INISECT_INS, nic_mac_ini)
8761 # ENDIF: self.op.mode == constants.INSTANCE_IMPORT
8763 # ip ping checks (we use the same ip that was resolved in ExpandNames)
8764 if self.op.ip_check:
8765 if netutils.TcpPing(self.check_ip, constants.DEFAULT_NODED_PORT):
8766 raise errors.OpPrereqError("IP %s of instance %s already in use" %
8767 (self.check_ip, self.op.instance_name),
8768 errors.ECODE_NOTUNIQUE)
8770 #### mac address generation
8771 # By generating here the mac address both the allocator and the hooks get
8772 # the real final mac address rather than the 'auto' or 'generate' value.
8773 # There is a race condition between the generation and the instance object
8774 # creation, which means that we know the mac is valid now, but we're not
8775 # sure it will be when we actually add the instance. If things go bad
8776 # adding the instance will abort because of a duplicate mac, and the
8777 # creation job will fail.
8778 for nic in self.nics:
8779 if nic.mac in (constants.VALUE_AUTO, constants.VALUE_GENERATE):
8780 nic.mac = self.cfg.GenerateMAC(self.proc.GetECId())
8784 if self.op.iallocator is not None:
8785 self._RunAllocator()
8787 #### node related checks
8789 # check primary node
8790 self.pnode = pnode = self.cfg.GetNodeInfo(self.op.pnode)
8791 assert self.pnode is not None, \
8792 "Cannot retrieve locked node %s" % self.op.pnode
8794 raise errors.OpPrereqError("Cannot use offline primary node '%s'" %
8795 pnode.name, errors.ECODE_STATE)
8797 raise errors.OpPrereqError("Cannot use drained primary node '%s'" %
8798 pnode.name, errors.ECODE_STATE)
8799 if not pnode.vm_capable:
8800 raise errors.OpPrereqError("Cannot use non-vm_capable primary node"
8801 " '%s'" % pnode.name, errors.ECODE_STATE)
8803 self.secondaries = []
8805 # mirror node verification
8806 if self.op.disk_template in constants.DTS_INT_MIRROR:
8807 if self.op.snode == pnode.name:
8808 raise errors.OpPrereqError("The secondary node cannot be the"
8809 " primary node", errors.ECODE_INVAL)
8810 _CheckNodeOnline(self, self.op.snode)
8811 _CheckNodeNotDrained(self, self.op.snode)
8812 _CheckNodeVmCapable(self, self.op.snode)
8813 self.secondaries.append(self.op.snode)
8815 nodenames = [pnode.name] + self.secondaries
8817 if not self.adopt_disks:
8818 # Check lv size requirements, if not adopting
8819 req_sizes = _ComputeDiskSizePerVG(self.op.disk_template, self.disks)
8820 _CheckNodesFreeDiskPerVG(self, nodenames, req_sizes)
8822 elif self.op.disk_template == constants.DT_PLAIN: # Check the adoption data
8823 all_lvs = set(["%s/%s" % (disk[constants.IDISK_VG],
8824 disk[constants.IDISK_ADOPT])
8825 for disk in self.disks])
8826 if len(all_lvs) != len(self.disks):
8827 raise errors.OpPrereqError("Duplicate volume names given for adoption",
8829 for lv_name in all_lvs:
8831 # FIXME: lv_name here is "vg/lv" need to ensure that other calls
8832 # to ReserveLV uses the same syntax
8833 self.cfg.ReserveLV(lv_name, self.proc.GetECId())
8834 except errors.ReservationError:
8835 raise errors.OpPrereqError("LV named %s used by another instance" %
8836 lv_name, errors.ECODE_NOTUNIQUE)
8838 vg_names = self.rpc.call_vg_list([pnode.name])[pnode.name]
8839 vg_names.Raise("Cannot get VG information from node %s" % pnode.name)
8841 node_lvs = self.rpc.call_lv_list([pnode.name],
8842 vg_names.payload.keys())[pnode.name]
8843 node_lvs.Raise("Cannot get LV information from node %s" % pnode.name)
8844 node_lvs = node_lvs.payload
8846 delta = all_lvs.difference(node_lvs.keys())
8848 raise errors.OpPrereqError("Missing logical volume(s): %s" %
8849 utils.CommaJoin(delta),
8851 online_lvs = [lv for lv in all_lvs if node_lvs[lv][2]]
8853 raise errors.OpPrereqError("Online logical volumes found, cannot"
8854 " adopt: %s" % utils.CommaJoin(online_lvs),
8856 # update the size of disk based on what is found
8857 for dsk in self.disks:
8858 dsk[constants.IDISK_SIZE] = \
8859 int(float(node_lvs["%s/%s" % (dsk[constants.IDISK_VG],
8860 dsk[constants.IDISK_ADOPT])][0]))
8862 elif self.op.disk_template == constants.DT_BLOCK:
8863 # Normalize and de-duplicate device paths
8864 all_disks = set([os.path.abspath(disk[constants.IDISK_ADOPT])
8865 for disk in self.disks])
8866 if len(all_disks) != len(self.disks):
8867 raise errors.OpPrereqError("Duplicate disk names given for adoption",
8869 baddisks = [d for d in all_disks
8870 if not d.startswith(constants.ADOPTABLE_BLOCKDEV_ROOT)]
8872 raise errors.OpPrereqError("Device node(s) %s lie outside %s and"
8873 " cannot be adopted" %
8874 (", ".join(baddisks),
8875 constants.ADOPTABLE_BLOCKDEV_ROOT),
8878 node_disks = self.rpc.call_bdev_sizes([pnode.name],
8879 list(all_disks))[pnode.name]
8880 node_disks.Raise("Cannot get block device information from node %s" %
8882 node_disks = node_disks.payload
8883 delta = all_disks.difference(node_disks.keys())
8885 raise errors.OpPrereqError("Missing block device(s): %s" %
8886 utils.CommaJoin(delta),
8888 for dsk in self.disks:
8889 dsk[constants.IDISK_SIZE] = \
8890 int(float(node_disks[dsk[constants.IDISK_ADOPT]]))
8892 _CheckHVParams(self, nodenames, self.op.hypervisor, self.op.hvparams)
8894 _CheckNodeHasOS(self, pnode.name, self.op.os_type, self.op.force_variant)
8895 # check OS parameters (remotely)
8896 _CheckOSParams(self, True, nodenames, self.op.os_type, self.os_full)
8898 _CheckNicsBridgesExist(self, self.nics, self.pnode.name)
8900 # memory check on primary node
8902 _CheckNodeFreeMemory(self, self.pnode.name,
8903 "creating instance %s" % self.op.instance_name,
8904 self.be_full[constants.BE_MEMORY],
8907 self.dry_run_result = list(nodenames)
8909 def Exec(self, feedback_fn):
8910 """Create and add the instance to the cluster.
8913 instance = self.op.instance_name
8914 pnode_name = self.pnode.name
8916 ht_kind = self.op.hypervisor
8917 if ht_kind in constants.HTS_REQ_PORT:
8918 network_port = self.cfg.AllocatePort()
8922 disks = _GenerateDiskTemplate(self,
8923 self.op.disk_template,
8924 instance, pnode_name,
8927 self.instance_file_storage_dir,
8928 self.op.file_driver,
8932 iobj = objects.Instance(name=instance, os=self.op.os_type,
8933 primary_node=pnode_name,
8934 nics=self.nics, disks=disks,
8935 disk_template=self.op.disk_template,
8937 network_port=network_port,
8938 beparams=self.op.beparams,
8939 hvparams=self.op.hvparams,
8940 hypervisor=self.op.hypervisor,
8941 osparams=self.op.osparams,
8945 for tag in self.op.tags:
8948 if self.adopt_disks:
8949 if self.op.disk_template == constants.DT_PLAIN:
8950 # rename LVs to the newly-generated names; we need to construct
8951 # 'fake' LV disks with the old data, plus the new unique_id
8952 tmp_disks = [objects.Disk.FromDict(v.ToDict()) for v in disks]
8954 for t_dsk, a_dsk in zip(tmp_disks, self.disks):
8955 rename_to.append(t_dsk.logical_id)
8956 t_dsk.logical_id = (t_dsk.logical_id[0], a_dsk[constants.IDISK_ADOPT])
8957 self.cfg.SetDiskID(t_dsk, pnode_name)
8958 result = self.rpc.call_blockdev_rename(pnode_name,
8959 zip(tmp_disks, rename_to))
8960 result.Raise("Failed to rename adoped LVs")
8962 feedback_fn("* creating instance disks...")
8964 _CreateDisks(self, iobj)
8965 except errors.OpExecError:
8966 self.LogWarning("Device creation failed, reverting...")
8968 _RemoveDisks(self, iobj)
8970 self.cfg.ReleaseDRBDMinors(instance)
8973 feedback_fn("adding instance %s to cluster config" % instance)
8975 self.cfg.AddInstance(iobj, self.proc.GetECId())
8977 # Declare that we don't want to remove the instance lock anymore, as we've
8978 # added the instance to the config
8979 del self.remove_locks[locking.LEVEL_INSTANCE]
8981 if self.op.mode == constants.INSTANCE_IMPORT:
8982 # Release unused nodes
8983 _ReleaseLocks(self, locking.LEVEL_NODE, keep=[self.op.src_node])
8986 _ReleaseLocks(self, locking.LEVEL_NODE)
8989 if not self.adopt_disks and self.cfg.GetClusterInfo().prealloc_wipe_disks:
8990 feedback_fn("* wiping instance disks...")
8992 _WipeDisks(self, iobj)
8993 except errors.OpExecError, err:
8994 logging.exception("Wiping disks failed")
8995 self.LogWarning("Wiping instance disks failed (%s)", err)
8999 # Something is already wrong with the disks, don't do anything else
9001 elif self.op.wait_for_sync:
9002 disk_abort = not _WaitForSync(self, iobj)
9003 elif iobj.disk_template in constants.DTS_INT_MIRROR:
9004 # make sure the disks are not degraded (still sync-ing is ok)
9005 feedback_fn("* checking mirrors status")
9006 disk_abort = not _WaitForSync(self, iobj, oneshot=True)
9011 _RemoveDisks(self, iobj)
9012 self.cfg.RemoveInstance(iobj.name)
9013 # Make sure the instance lock gets removed
9014 self.remove_locks[locking.LEVEL_INSTANCE] = iobj.name
9015 raise errors.OpExecError("There are some degraded disks for"
9018 if iobj.disk_template != constants.DT_DISKLESS and not self.adopt_disks:
9019 if self.op.mode == constants.INSTANCE_CREATE:
9020 if not self.op.no_install:
9021 pause_sync = (iobj.disk_template in constants.DTS_INT_MIRROR and
9022 not self.op.wait_for_sync)
9024 feedback_fn("* pausing disk sync to install instance OS")
9025 result = self.rpc.call_blockdev_pause_resume_sync(pnode_name,
9027 for idx, success in enumerate(result.payload):
9029 logging.warn("pause-sync of instance %s for disk %d failed",
9032 feedback_fn("* running the instance OS create scripts...")
9033 # FIXME: pass debug option from opcode to backend
9034 result = self.rpc.call_instance_os_add(pnode_name, iobj, False,
9035 self.op.debug_level)
9037 feedback_fn("* resuming disk sync")
9038 result = self.rpc.call_blockdev_pause_resume_sync(pnode_name,
9040 for idx, success in enumerate(result.payload):
9042 logging.warn("resume-sync of instance %s for disk %d failed",
9045 result.Raise("Could not add os for instance %s"
9046 " on node %s" % (instance, pnode_name))
9048 elif self.op.mode == constants.INSTANCE_IMPORT:
9049 feedback_fn("* running the instance OS import scripts...")
9053 for idx, image in enumerate(self.src_images):
9057 # FIXME: pass debug option from opcode to backend
9058 dt = masterd.instance.DiskTransfer("disk/%s" % idx,
9059 constants.IEIO_FILE, (image, ),
9060 constants.IEIO_SCRIPT,
9061 (iobj.disks[idx], idx),
9063 transfers.append(dt)
9066 masterd.instance.TransferInstanceData(self, feedback_fn,
9067 self.op.src_node, pnode_name,
9068 self.pnode.secondary_ip,
9070 if not compat.all(import_result):
9071 self.LogWarning("Some disks for instance %s on node %s were not"
9072 " imported successfully" % (instance, pnode_name))
9074 elif self.op.mode == constants.INSTANCE_REMOTE_IMPORT:
9075 feedback_fn("* preparing remote import...")
9076 # The source cluster will stop the instance before attempting to make a
9077 # connection. In some cases stopping an instance can take a long time,
9078 # hence the shutdown timeout is added to the connection timeout.
9079 connect_timeout = (constants.RIE_CONNECT_TIMEOUT +
9080 self.op.source_shutdown_timeout)
9081 timeouts = masterd.instance.ImportExportTimeouts(connect_timeout)
9083 assert iobj.primary_node == self.pnode.name
9085 masterd.instance.RemoteImport(self, feedback_fn, iobj, self.pnode,
9086 self.source_x509_ca,
9087 self._cds, timeouts)
9088 if not compat.all(disk_results):
9089 # TODO: Should the instance still be started, even if some disks
9090 # failed to import (valid for local imports, too)?
9091 self.LogWarning("Some disks for instance %s on node %s were not"
9092 " imported successfully" % (instance, pnode_name))
9094 # Run rename script on newly imported instance
9095 assert iobj.name == instance
9096 feedback_fn("Running rename script for %s" % instance)
9097 result = self.rpc.call_instance_run_rename(pnode_name, iobj,
9098 self.source_instance_name,
9099 self.op.debug_level)
9101 self.LogWarning("Failed to run rename script for %s on node"
9102 " %s: %s" % (instance, pnode_name, result.fail_msg))
9105 # also checked in the prereq part
9106 raise errors.ProgrammerError("Unknown OS initialization mode '%s'"
9110 iobj.admin_up = True
9111 self.cfg.Update(iobj, feedback_fn)
9112 logging.info("Starting instance %s on node %s", instance, pnode_name)
9113 feedback_fn("* starting instance...")
9114 result = self.rpc.call_instance_start(pnode_name, iobj,
9116 result.Raise("Could not start instance")
9118 return list(iobj.all_nodes)
9121 class LUInstanceConsole(NoHooksLU):
9122 """Connect to an instance's console.
9124 This is somewhat special in that it returns the command line that
9125 you need to run on the master node in order to connect to the
9131 def ExpandNames(self):
9132 self._ExpandAndLockInstance()
9134 def CheckPrereq(self):
9135 """Check prerequisites.
9137 This checks that the instance is in the cluster.
9140 self.instance = self.cfg.GetInstanceInfo(self.op.instance_name)
9141 assert self.instance is not None, \
9142 "Cannot retrieve locked instance %s" % self.op.instance_name
9143 _CheckNodeOnline(self, self.instance.primary_node)
9145 def Exec(self, feedback_fn):
9146 """Connect to the console of an instance
9149 instance = self.instance
9150 node = instance.primary_node
9152 node_insts = self.rpc.call_instance_list([node],
9153 [instance.hypervisor])[node]
9154 node_insts.Raise("Can't get node information from %s" % node)
9156 if instance.name not in node_insts.payload:
9157 if instance.admin_up:
9158 state = constants.INSTST_ERRORDOWN
9160 state = constants.INSTST_ADMINDOWN
9161 raise errors.OpExecError("Instance %s is not running (state %s)" %
9162 (instance.name, state))
9164 logging.debug("Connecting to console of %s on %s", instance.name, node)
9166 return _GetInstanceConsole(self.cfg.GetClusterInfo(), instance)
9169 def _GetInstanceConsole(cluster, instance):
9170 """Returns console information for an instance.
9172 @type cluster: L{objects.Cluster}
9173 @type instance: L{objects.Instance}
9177 hyper = hypervisor.GetHypervisor(instance.hypervisor)
9178 # beparams and hvparams are passed separately, to avoid editing the
9179 # instance and then saving the defaults in the instance itself.
9180 hvparams = cluster.FillHV(instance)
9181 beparams = cluster.FillBE(instance)
9182 console = hyper.GetInstanceConsole(instance, hvparams, beparams)
9184 assert console.instance == instance.name
9185 assert console.Validate()
9187 return console.ToDict()
9190 class LUInstanceReplaceDisks(LogicalUnit):
9191 """Replace the disks of an instance.
9194 HPATH = "mirrors-replace"
9195 HTYPE = constants.HTYPE_INSTANCE
9198 def CheckArguments(self):
9199 TLReplaceDisks.CheckArguments(self.op.mode, self.op.remote_node,
9202 def ExpandNames(self):
9203 self._ExpandAndLockInstance()
9205 assert locking.LEVEL_NODE not in self.needed_locks
9206 assert locking.LEVEL_NODEGROUP not in self.needed_locks
9208 assert self.op.iallocator is None or self.op.remote_node is None, \
9209 "Conflicting options"
9211 if self.op.remote_node is not None:
9212 self.op.remote_node = _ExpandNodeName(self.cfg, self.op.remote_node)
9214 # Warning: do not remove the locking of the new secondary here
9215 # unless DRBD8.AddChildren is changed to work in parallel;
9216 # currently it doesn't since parallel invocations of
9217 # FindUnusedMinor will conflict
9218 self.needed_locks[locking.LEVEL_NODE] = [self.op.remote_node]
9219 self.recalculate_locks[locking.LEVEL_NODE] = constants.LOCKS_APPEND
9221 self.needed_locks[locking.LEVEL_NODE] = []
9222 self.recalculate_locks[locking.LEVEL_NODE] = constants.LOCKS_REPLACE
9224 if self.op.iallocator is not None:
9225 # iallocator will select a new node in the same group
9226 self.needed_locks[locking.LEVEL_NODEGROUP] = []
9228 self.replacer = TLReplaceDisks(self, self.op.instance_name, self.op.mode,
9229 self.op.iallocator, self.op.remote_node,
9230 self.op.disks, False, self.op.early_release)
9232 self.tasklets = [self.replacer]
9234 def DeclareLocks(self, level):
9235 if level == locking.LEVEL_NODEGROUP:
9236 assert self.op.remote_node is None
9237 assert self.op.iallocator is not None
9238 assert not self.needed_locks[locking.LEVEL_NODEGROUP]
9240 self.share_locks[locking.LEVEL_NODEGROUP] = 1
9241 self.needed_locks[locking.LEVEL_NODEGROUP] = \
9242 self.cfg.GetInstanceNodeGroups(self.op.instance_name)
9244 elif level == locking.LEVEL_NODE:
9245 if self.op.iallocator is not None:
9246 assert self.op.remote_node is None
9247 assert not self.needed_locks[locking.LEVEL_NODE]
9249 # Lock member nodes of all locked groups
9250 self.needed_locks[locking.LEVEL_NODE] = [node_name
9251 for group_uuid in self.owned_locks(locking.LEVEL_NODEGROUP)
9252 for node_name in self.cfg.GetNodeGroup(group_uuid).members]
9254 self._LockInstancesNodes()
9256 def BuildHooksEnv(self):
9259 This runs on the master, the primary and all the secondaries.
9262 instance = self.replacer.instance
9264 "MODE": self.op.mode,
9265 "NEW_SECONDARY": self.op.remote_node,
9266 "OLD_SECONDARY": instance.secondary_nodes[0],
9268 env.update(_BuildInstanceHookEnvByObject(self, instance))
9271 def BuildHooksNodes(self):
9272 """Build hooks nodes.
9275 instance = self.replacer.instance
9277 self.cfg.GetMasterNode(),
9278 instance.primary_node,
9280 if self.op.remote_node is not None:
9281 nl.append(self.op.remote_node)
9284 def CheckPrereq(self):
9285 """Check prerequisites.
9288 assert (self.glm.is_owned(locking.LEVEL_NODEGROUP) or
9289 self.op.iallocator is None)
9291 owned_groups = self.owned_locks(locking.LEVEL_NODEGROUP)
9293 _CheckInstanceNodeGroups(self.cfg, self.op.instance_name, owned_groups)
9295 return LogicalUnit.CheckPrereq(self)
9298 class TLReplaceDisks(Tasklet):
9299 """Replaces disks for an instance.
9301 Note: Locking is not within the scope of this class.
9304 def __init__(self, lu, instance_name, mode, iallocator_name, remote_node,
9305 disks, delay_iallocator, early_release):
9306 """Initializes this class.
9309 Tasklet.__init__(self, lu)
9312 self.instance_name = instance_name
9314 self.iallocator_name = iallocator_name
9315 self.remote_node = remote_node
9317 self.delay_iallocator = delay_iallocator
9318 self.early_release = early_release
9321 self.instance = None
9322 self.new_node = None
9323 self.target_node = None
9324 self.other_node = None
9325 self.remote_node_info = None
9326 self.node_secondary_ip = None
9329 def CheckArguments(mode, remote_node, iallocator):
9330 """Helper function for users of this class.
9333 # check for valid parameter combination
9334 if mode == constants.REPLACE_DISK_CHG:
9335 if remote_node is None and iallocator is None:
9336 raise errors.OpPrereqError("When changing the secondary either an"
9337 " iallocator script must be used or the"
9338 " new node given", errors.ECODE_INVAL)
9340 if remote_node is not None and iallocator is not None:
9341 raise errors.OpPrereqError("Give either the iallocator or the new"
9342 " secondary, not both", errors.ECODE_INVAL)
9344 elif remote_node is not None or iallocator is not None:
9345 # Not replacing the secondary
9346 raise errors.OpPrereqError("The iallocator and new node options can"
9347 " only be used when changing the"
9348 " secondary node", errors.ECODE_INVAL)
9351 def _RunAllocator(lu, iallocator_name, instance_name, relocate_from):
9352 """Compute a new secondary node using an IAllocator.
9355 ial = IAllocator(lu.cfg, lu.rpc,
9356 mode=constants.IALLOCATOR_MODE_RELOC,
9358 relocate_from=list(relocate_from))
9360 ial.Run(iallocator_name)
9363 raise errors.OpPrereqError("Can't compute nodes using iallocator '%s':"
9364 " %s" % (iallocator_name, ial.info),
9367 if len(ial.result) != ial.required_nodes:
9368 raise errors.OpPrereqError("iallocator '%s' returned invalid number"
9369 " of nodes (%s), required %s" %
9371 len(ial.result), ial.required_nodes),
9374 remote_node_name = ial.result[0]
9376 lu.LogInfo("Selected new secondary for instance '%s': %s",
9377 instance_name, remote_node_name)
9379 return remote_node_name
9381 def _FindFaultyDisks(self, node_name):
9382 """Wrapper for L{_FindFaultyInstanceDisks}.
9385 return _FindFaultyInstanceDisks(self.cfg, self.rpc, self.instance,
9388 def _CheckDisksActivated(self, instance):
9389 """Checks if the instance disks are activated.
9391 @param instance: The instance to check disks
9392 @return: True if they are activated, False otherwise
9395 nodes = instance.all_nodes
9397 for idx, dev in enumerate(instance.disks):
9399 self.lu.LogInfo("Checking disk/%d on %s", idx, node)
9400 self.cfg.SetDiskID(dev, node)
9402 result = self.rpc.call_blockdev_find(node, dev)
9406 elif result.fail_msg or not result.payload:
9411 def CheckPrereq(self):
9412 """Check prerequisites.
9414 This checks that the instance is in the cluster.
9417 self.instance = instance = self.cfg.GetInstanceInfo(self.instance_name)
9418 assert instance is not None, \
9419 "Cannot retrieve locked instance %s" % self.instance_name
9421 if instance.disk_template != constants.DT_DRBD8:
9422 raise errors.OpPrereqError("Can only run replace disks for DRBD8-based"
9423 " instances", errors.ECODE_INVAL)
9425 if len(instance.secondary_nodes) != 1:
9426 raise errors.OpPrereqError("The instance has a strange layout,"
9427 " expected one secondary but found %d" %
9428 len(instance.secondary_nodes),
9431 if not self.delay_iallocator:
9432 self._CheckPrereq2()
9434 def _CheckPrereq2(self):
9435 """Check prerequisites, second part.
9437 This function should always be part of CheckPrereq. It was separated and is
9438 now called from Exec because during node evacuation iallocator was only
9439 called with an unmodified cluster model, not taking planned changes into
9443 instance = self.instance
9444 secondary_node = instance.secondary_nodes[0]
9446 if self.iallocator_name is None:
9447 remote_node = self.remote_node
9449 remote_node = self._RunAllocator(self.lu, self.iallocator_name,
9450 instance.name, instance.secondary_nodes)
9452 if remote_node is None:
9453 self.remote_node_info = None
9455 assert remote_node in self.lu.owned_locks(locking.LEVEL_NODE), \
9456 "Remote node '%s' is not locked" % remote_node
9458 self.remote_node_info = self.cfg.GetNodeInfo(remote_node)
9459 assert self.remote_node_info is not None, \
9460 "Cannot retrieve locked node %s" % remote_node
9462 if remote_node == self.instance.primary_node:
9463 raise errors.OpPrereqError("The specified node is the primary node of"
9464 " the instance", errors.ECODE_INVAL)
9466 if remote_node == secondary_node:
9467 raise errors.OpPrereqError("The specified node is already the"
9468 " secondary node of the instance",
9471 if self.disks and self.mode in (constants.REPLACE_DISK_AUTO,
9472 constants.REPLACE_DISK_CHG):
9473 raise errors.OpPrereqError("Cannot specify disks to be replaced",
9476 if self.mode == constants.REPLACE_DISK_AUTO:
9477 if not self._CheckDisksActivated(instance):
9478 raise errors.OpPrereqError("Please run activate-disks on instance %s"
9479 " first" % self.instance_name,
9481 faulty_primary = self._FindFaultyDisks(instance.primary_node)
9482 faulty_secondary = self._FindFaultyDisks(secondary_node)
9484 if faulty_primary and faulty_secondary:
9485 raise errors.OpPrereqError("Instance %s has faulty disks on more than"
9486 " one node and can not be repaired"
9487 " automatically" % self.instance_name,
9491 self.disks = faulty_primary
9492 self.target_node = instance.primary_node
9493 self.other_node = secondary_node
9494 check_nodes = [self.target_node, self.other_node]
9495 elif faulty_secondary:
9496 self.disks = faulty_secondary
9497 self.target_node = secondary_node
9498 self.other_node = instance.primary_node
9499 check_nodes = [self.target_node, self.other_node]
9505 # Non-automatic modes
9506 if self.mode == constants.REPLACE_DISK_PRI:
9507 self.target_node = instance.primary_node
9508 self.other_node = secondary_node
9509 check_nodes = [self.target_node, self.other_node]
9511 elif self.mode == constants.REPLACE_DISK_SEC:
9512 self.target_node = secondary_node
9513 self.other_node = instance.primary_node
9514 check_nodes = [self.target_node, self.other_node]
9516 elif self.mode == constants.REPLACE_DISK_CHG:
9517 self.new_node = remote_node
9518 self.other_node = instance.primary_node
9519 self.target_node = secondary_node
9520 check_nodes = [self.new_node, self.other_node]
9522 _CheckNodeNotDrained(self.lu, remote_node)
9523 _CheckNodeVmCapable(self.lu, remote_node)
9525 old_node_info = self.cfg.GetNodeInfo(secondary_node)
9526 assert old_node_info is not None
9527 if old_node_info.offline and not self.early_release:
9528 # doesn't make sense to delay the release
9529 self.early_release = True
9530 self.lu.LogInfo("Old secondary %s is offline, automatically enabling"
9531 " early-release mode", secondary_node)
9534 raise errors.ProgrammerError("Unhandled disk replace mode (%s)" %
9537 # If not specified all disks should be replaced
9539 self.disks = range(len(self.instance.disks))
9541 for node in check_nodes:
9542 _CheckNodeOnline(self.lu, node)
9544 touched_nodes = frozenset(node_name for node_name in [self.new_node,
9547 if node_name is not None)
9549 # Release unneeded node locks
9550 _ReleaseLocks(self.lu, locking.LEVEL_NODE, keep=touched_nodes)
9552 # Release any owned node group
9553 if self.lu.glm.is_owned(locking.LEVEL_NODEGROUP):
9554 _ReleaseLocks(self.lu, locking.LEVEL_NODEGROUP)
9556 # Check whether disks are valid
9557 for disk_idx in self.disks:
9558 instance.FindDisk(disk_idx)
9560 # Get secondary node IP addresses
9561 self.node_secondary_ip = dict((name, node.secondary_ip) for (name, node)
9562 in self.cfg.GetMultiNodeInfo(touched_nodes))
9564 def Exec(self, feedback_fn):
9565 """Execute disk replacement.
9567 This dispatches the disk replacement to the appropriate handler.
9570 if self.delay_iallocator:
9571 self._CheckPrereq2()
9574 # Verify owned locks before starting operation
9575 owned_nodes = self.lu.owned_locks(locking.LEVEL_NODE)
9576 assert set(owned_nodes) == set(self.node_secondary_ip), \
9577 ("Incorrect node locks, owning %s, expected %s" %
9578 (owned_nodes, self.node_secondary_ip.keys()))
9580 owned_instances = self.lu.owned_locks(locking.LEVEL_INSTANCE)
9581 assert list(owned_instances) == [self.instance_name], \
9582 "Instance '%s' not locked" % self.instance_name
9584 assert not self.lu.glm.is_owned(locking.LEVEL_NODEGROUP), \
9585 "Should not own any node group lock at this point"
9588 feedback_fn("No disks need replacement")
9591 feedback_fn("Replacing disk(s) %s for %s" %
9592 (utils.CommaJoin(self.disks), self.instance.name))
9594 activate_disks = (not self.instance.admin_up)
9596 # Activate the instance disks if we're replacing them on a down instance
9598 _StartInstanceDisks(self.lu, self.instance, True)
9601 # Should we replace the secondary node?
9602 if self.new_node is not None:
9603 fn = self._ExecDrbd8Secondary
9605 fn = self._ExecDrbd8DiskOnly
9607 result = fn(feedback_fn)
9609 # Deactivate the instance disks if we're replacing them on a
9612 _SafeShutdownInstanceDisks(self.lu, self.instance)
9615 # Verify owned locks
9616 owned_nodes = self.lu.owned_locks(locking.LEVEL_NODE)
9617 nodes = frozenset(self.node_secondary_ip)
9618 assert ((self.early_release and not owned_nodes) or
9619 (not self.early_release and not (set(owned_nodes) - nodes))), \
9620 ("Not owning the correct locks, early_release=%s, owned=%r,"
9621 " nodes=%r" % (self.early_release, owned_nodes, nodes))
9625 def _CheckVolumeGroup(self, nodes):
9626 self.lu.LogInfo("Checking volume groups")
9628 vgname = self.cfg.GetVGName()
9630 # Make sure volume group exists on all involved nodes
9631 results = self.rpc.call_vg_list(nodes)
9633 raise errors.OpExecError("Can't list volume groups on the nodes")
9637 res.Raise("Error checking node %s" % node)
9638 if vgname not in res.payload:
9639 raise errors.OpExecError("Volume group '%s' not found on node %s" %
9642 def _CheckDisksExistence(self, nodes):
9643 # Check disk existence
9644 for idx, dev in enumerate(self.instance.disks):
9645 if idx not in self.disks:
9649 self.lu.LogInfo("Checking disk/%d on %s" % (idx, node))
9650 self.cfg.SetDiskID(dev, node)
9652 result = self.rpc.call_blockdev_find(node, dev)
9654 msg = result.fail_msg
9655 if msg or not result.payload:
9657 msg = "disk not found"
9658 raise errors.OpExecError("Can't find disk/%d on node %s: %s" %
9661 def _CheckDisksConsistency(self, node_name, on_primary, ldisk):
9662 for idx, dev in enumerate(self.instance.disks):
9663 if idx not in self.disks:
9666 self.lu.LogInfo("Checking disk/%d consistency on node %s" %
9669 if not _CheckDiskConsistency(self.lu, dev, node_name, on_primary,
9671 raise errors.OpExecError("Node %s has degraded storage, unsafe to"
9672 " replace disks for instance %s" %
9673 (node_name, self.instance.name))
9675 def _CreateNewStorage(self, node_name):
9676 """Create new storage on the primary or secondary node.
9678 This is only used for same-node replaces, not for changing the
9679 secondary node, hence we don't want to modify the existing disk.
9684 for idx, dev in enumerate(self.instance.disks):
9685 if idx not in self.disks:
9688 self.lu.LogInfo("Adding storage on %s for disk/%d" % (node_name, idx))
9690 self.cfg.SetDiskID(dev, node_name)
9692 lv_names = [".disk%d_%s" % (idx, suffix) for suffix in ["data", "meta"]]
9693 names = _GenerateUniqueNames(self.lu, lv_names)
9695 vg_data = dev.children[0].logical_id[0]
9696 lv_data = objects.Disk(dev_type=constants.LD_LV, size=dev.size,
9697 logical_id=(vg_data, names[0]))
9698 vg_meta = dev.children[1].logical_id[0]
9699 lv_meta = objects.Disk(dev_type=constants.LD_LV, size=128,
9700 logical_id=(vg_meta, names[1]))
9702 new_lvs = [lv_data, lv_meta]
9703 old_lvs = [child.Copy() for child in dev.children]
9704 iv_names[dev.iv_name] = (dev, old_lvs, new_lvs)
9706 # we pass force_create=True to force the LVM creation
9707 for new_lv in new_lvs:
9708 _CreateBlockDev(self.lu, node_name, self.instance, new_lv, True,
9709 _GetInstanceInfoText(self.instance), False)
9713 def _CheckDevices(self, node_name, iv_names):
9714 for name, (dev, _, _) in iv_names.iteritems():
9715 self.cfg.SetDiskID(dev, node_name)
9717 result = self.rpc.call_blockdev_find(node_name, dev)
9719 msg = result.fail_msg
9720 if msg or not result.payload:
9722 msg = "disk not found"
9723 raise errors.OpExecError("Can't find DRBD device %s: %s" %
9726 if result.payload.is_degraded:
9727 raise errors.OpExecError("DRBD device %s is degraded!" % name)
9729 def _RemoveOldStorage(self, node_name, iv_names):
9730 for name, (_, old_lvs, _) in iv_names.iteritems():
9731 self.lu.LogInfo("Remove logical volumes for %s" % name)
9734 self.cfg.SetDiskID(lv, node_name)
9736 msg = self.rpc.call_blockdev_remove(node_name, lv).fail_msg
9738 self.lu.LogWarning("Can't remove old LV: %s" % msg,
9739 hint="remove unused LVs manually")
9741 def _ExecDrbd8DiskOnly(self, feedback_fn): # pylint: disable=W0613
9742 """Replace a disk on the primary or secondary for DRBD 8.
9744 The algorithm for replace is quite complicated:
9746 1. for each disk to be replaced:
9748 1. create new LVs on the target node with unique names
9749 1. detach old LVs from the drbd device
9750 1. rename old LVs to name_replaced.<time_t>
9751 1. rename new LVs to old LVs
9752 1. attach the new LVs (with the old names now) to the drbd device
9754 1. wait for sync across all devices
9756 1. for each modified disk:
9758 1. remove old LVs (which have the name name_replaces.<time_t>)
9760 Failures are not very well handled.
9765 # Step: check device activation
9766 self.lu.LogStep(1, steps_total, "Check device existence")
9767 self._CheckDisksExistence([self.other_node, self.target_node])
9768 self._CheckVolumeGroup([self.target_node, self.other_node])
9770 # Step: check other node consistency
9771 self.lu.LogStep(2, steps_total, "Check peer consistency")
9772 self._CheckDisksConsistency(self.other_node,
9773 self.other_node == self.instance.primary_node,
9776 # Step: create new storage
9777 self.lu.LogStep(3, steps_total, "Allocate new storage")
9778 iv_names = self._CreateNewStorage(self.target_node)
9780 # Step: for each lv, detach+rename*2+attach
9781 self.lu.LogStep(4, steps_total, "Changing drbd configuration")
9782 for dev, old_lvs, new_lvs in iv_names.itervalues():
9783 self.lu.LogInfo("Detaching %s drbd from local storage" % dev.iv_name)
9785 result = self.rpc.call_blockdev_removechildren(self.target_node, dev,
9787 result.Raise("Can't detach drbd from local storage on node"
9788 " %s for device %s" % (self.target_node, dev.iv_name))
9790 #cfg.Update(instance)
9792 # ok, we created the new LVs, so now we know we have the needed
9793 # storage; as such, we proceed on the target node to rename
9794 # old_lv to _old, and new_lv to old_lv; note that we rename LVs
9795 # using the assumption that logical_id == physical_id (which in
9796 # turn is the unique_id on that node)
9798 # FIXME(iustin): use a better name for the replaced LVs
9799 temp_suffix = int(time.time())
9800 ren_fn = lambda d, suff: (d.physical_id[0],
9801 d.physical_id[1] + "_replaced-%s" % suff)
9803 # Build the rename list based on what LVs exist on the node
9804 rename_old_to_new = []
9805 for to_ren in old_lvs:
9806 result = self.rpc.call_blockdev_find(self.target_node, to_ren)
9807 if not result.fail_msg and result.payload:
9809 rename_old_to_new.append((to_ren, ren_fn(to_ren, temp_suffix)))
9811 self.lu.LogInfo("Renaming the old LVs on the target node")
9812 result = self.rpc.call_blockdev_rename(self.target_node,
9814 result.Raise("Can't rename old LVs on node %s" % self.target_node)
9816 # Now we rename the new LVs to the old LVs
9817 self.lu.LogInfo("Renaming the new LVs on the target node")
9818 rename_new_to_old = [(new, old.physical_id)
9819 for old, new in zip(old_lvs, new_lvs)]
9820 result = self.rpc.call_blockdev_rename(self.target_node,
9822 result.Raise("Can't rename new LVs on node %s" % self.target_node)
9824 # Intermediate steps of in memory modifications
9825 for old, new in zip(old_lvs, new_lvs):
9826 new.logical_id = old.logical_id
9827 self.cfg.SetDiskID(new, self.target_node)
9829 # We need to modify old_lvs so that removal later removes the
9830 # right LVs, not the newly added ones; note that old_lvs is a
9832 for disk in old_lvs:
9833 disk.logical_id = ren_fn(disk, temp_suffix)
9834 self.cfg.SetDiskID(disk, self.target_node)
9836 # Now that the new lvs have the old name, we can add them to the device
9837 self.lu.LogInfo("Adding new mirror component on %s" % self.target_node)
9838 result = self.rpc.call_blockdev_addchildren(self.target_node, dev,
9840 msg = result.fail_msg
9842 for new_lv in new_lvs:
9843 msg2 = self.rpc.call_blockdev_remove(self.target_node,
9846 self.lu.LogWarning("Can't rollback device %s: %s", dev, msg2,
9847 hint=("cleanup manually the unused logical"
9849 raise errors.OpExecError("Can't add local storage to drbd: %s" % msg)
9852 if self.early_release:
9853 self.lu.LogStep(cstep, steps_total, "Removing old storage")
9855 self._RemoveOldStorage(self.target_node, iv_names)
9856 # WARNING: we release both node locks here, do not do other RPCs
9857 # than WaitForSync to the primary node
9858 _ReleaseLocks(self.lu, locking.LEVEL_NODE,
9859 names=[self.target_node, self.other_node])
9862 # This can fail as the old devices are degraded and _WaitForSync
9863 # does a combined result over all disks, so we don't check its return value
9864 self.lu.LogStep(cstep, steps_total, "Sync devices")
9866 _WaitForSync(self.lu, self.instance)
9868 # Check all devices manually
9869 self._CheckDevices(self.instance.primary_node, iv_names)
9871 # Step: remove old storage
9872 if not self.early_release:
9873 self.lu.LogStep(cstep, steps_total, "Removing old storage")
9875 self._RemoveOldStorage(self.target_node, iv_names)
9877 def _ExecDrbd8Secondary(self, feedback_fn):
9878 """Replace the secondary node for DRBD 8.
9880 The algorithm for replace is quite complicated:
9881 - for all disks of the instance:
9882 - create new LVs on the new node with same names
9883 - shutdown the drbd device on the old secondary
9884 - disconnect the drbd network on the primary
9885 - create the drbd device on the new secondary
9886 - network attach the drbd on the primary, using an artifice:
9887 the drbd code for Attach() will connect to the network if it
9888 finds a device which is connected to the good local disks but
9890 - wait for sync across all devices
9891 - remove all disks from the old secondary
9893 Failures are not very well handled.
9898 pnode = self.instance.primary_node
9900 # Step: check device activation
9901 self.lu.LogStep(1, steps_total, "Check device existence")
9902 self._CheckDisksExistence([self.instance.primary_node])
9903 self._CheckVolumeGroup([self.instance.primary_node])
9905 # Step: check other node consistency
9906 self.lu.LogStep(2, steps_total, "Check peer consistency")
9907 self._CheckDisksConsistency(self.instance.primary_node, True, True)
9909 # Step: create new storage
9910 self.lu.LogStep(3, steps_total, "Allocate new storage")
9911 for idx, dev in enumerate(self.instance.disks):
9912 self.lu.LogInfo("Adding new local storage on %s for disk/%d" %
9913 (self.new_node, idx))
9914 # we pass force_create=True to force LVM creation
9915 for new_lv in dev.children:
9916 _CreateBlockDev(self.lu, self.new_node, self.instance, new_lv, True,
9917 _GetInstanceInfoText(self.instance), False)
9919 # Step 4: dbrd minors and drbd setups changes
9920 # after this, we must manually remove the drbd minors on both the
9921 # error and the success paths
9922 self.lu.LogStep(4, steps_total, "Changing drbd configuration")
9923 minors = self.cfg.AllocateDRBDMinor([self.new_node
9924 for dev in self.instance.disks],
9926 logging.debug("Allocated minors %r", minors)
9929 for idx, (dev, new_minor) in enumerate(zip(self.instance.disks, minors)):
9930 self.lu.LogInfo("activating a new drbd on %s for disk/%d" %
9931 (self.new_node, idx))
9932 # create new devices on new_node; note that we create two IDs:
9933 # one without port, so the drbd will be activated without
9934 # networking information on the new node at this stage, and one
9935 # with network, for the latter activation in step 4
9936 (o_node1, o_node2, o_port, o_minor1, o_minor2, o_secret) = dev.logical_id
9937 if self.instance.primary_node == o_node1:
9940 assert self.instance.primary_node == o_node2, "Three-node instance?"
9943 new_alone_id = (self.instance.primary_node, self.new_node, None,
9944 p_minor, new_minor, o_secret)
9945 new_net_id = (self.instance.primary_node, self.new_node, o_port,
9946 p_minor, new_minor, o_secret)
9948 iv_names[idx] = (dev, dev.children, new_net_id)
9949 logging.debug("Allocated new_minor: %s, new_logical_id: %s", new_minor,
9951 new_drbd = objects.Disk(dev_type=constants.LD_DRBD8,
9952 logical_id=new_alone_id,
9953 children=dev.children,
9956 _CreateSingleBlockDev(self.lu, self.new_node, self.instance, new_drbd,
9957 _GetInstanceInfoText(self.instance), False)
9958 except errors.GenericError:
9959 self.cfg.ReleaseDRBDMinors(self.instance.name)
9962 # We have new devices, shutdown the drbd on the old secondary
9963 for idx, dev in enumerate(self.instance.disks):
9964 self.lu.LogInfo("Shutting down drbd for disk/%d on old node" % idx)
9965 self.cfg.SetDiskID(dev, self.target_node)
9966 msg = self.rpc.call_blockdev_shutdown(self.target_node, dev).fail_msg
9968 self.lu.LogWarning("Failed to shutdown drbd for disk/%d on old"
9969 "node: %s" % (idx, msg),
9970 hint=("Please cleanup this device manually as"
9971 " soon as possible"))
9973 self.lu.LogInfo("Detaching primary drbds from the network (=> standalone)")
9974 result = self.rpc.call_drbd_disconnect_net([pnode], self.node_secondary_ip,
9975 self.instance.disks)[pnode]
9977 msg = result.fail_msg
9979 # detaches didn't succeed (unlikely)
9980 self.cfg.ReleaseDRBDMinors(self.instance.name)
9981 raise errors.OpExecError("Can't detach the disks from the network on"
9982 " old node: %s" % (msg,))
9984 # if we managed to detach at least one, we update all the disks of
9985 # the instance to point to the new secondary
9986 self.lu.LogInfo("Updating instance configuration")
9987 for dev, _, new_logical_id in iv_names.itervalues():
9988 dev.logical_id = new_logical_id
9989 self.cfg.SetDiskID(dev, self.instance.primary_node)
9991 self.cfg.Update(self.instance, feedback_fn)
9993 # and now perform the drbd attach
9994 self.lu.LogInfo("Attaching primary drbds to new secondary"
9995 " (standalone => connected)")
9996 result = self.rpc.call_drbd_attach_net([self.instance.primary_node,
9998 self.node_secondary_ip,
9999 self.instance.disks,
10000 self.instance.name,
10002 for to_node, to_result in result.items():
10003 msg = to_result.fail_msg
10005 self.lu.LogWarning("Can't attach drbd disks on node %s: %s",
10007 hint=("please do a gnt-instance info to see the"
10008 " status of disks"))
10010 if self.early_release:
10011 self.lu.LogStep(cstep, steps_total, "Removing old storage")
10013 self._RemoveOldStorage(self.target_node, iv_names)
10014 # WARNING: we release all node locks here, do not do other RPCs
10015 # than WaitForSync to the primary node
10016 _ReleaseLocks(self.lu, locking.LEVEL_NODE,
10017 names=[self.instance.primary_node,
10022 # This can fail as the old devices are degraded and _WaitForSync
10023 # does a combined result over all disks, so we don't check its return value
10024 self.lu.LogStep(cstep, steps_total, "Sync devices")
10026 _WaitForSync(self.lu, self.instance)
10028 # Check all devices manually
10029 self._CheckDevices(self.instance.primary_node, iv_names)
10031 # Step: remove old storage
10032 if not self.early_release:
10033 self.lu.LogStep(cstep, steps_total, "Removing old storage")
10034 self._RemoveOldStorage(self.target_node, iv_names)
10037 class LURepairNodeStorage(NoHooksLU):
10038 """Repairs the volume group on a node.
10043 def CheckArguments(self):
10044 self.op.node_name = _ExpandNodeName(self.cfg, self.op.node_name)
10046 storage_type = self.op.storage_type
10048 if (constants.SO_FIX_CONSISTENCY not in
10049 constants.VALID_STORAGE_OPERATIONS.get(storage_type, [])):
10050 raise errors.OpPrereqError("Storage units of type '%s' can not be"
10051 " repaired" % storage_type,
10052 errors.ECODE_INVAL)
10054 def ExpandNames(self):
10055 self.needed_locks = {
10056 locking.LEVEL_NODE: [self.op.node_name],
10059 def _CheckFaultyDisks(self, instance, node_name):
10060 """Ensure faulty disks abort the opcode or at least warn."""
10062 if _FindFaultyInstanceDisks(self.cfg, self.rpc, instance,
10064 raise errors.OpPrereqError("Instance '%s' has faulty disks on"
10065 " node '%s'" % (instance.name, node_name),
10066 errors.ECODE_STATE)
10067 except errors.OpPrereqError, err:
10068 if self.op.ignore_consistency:
10069 self.proc.LogWarning(str(err.args[0]))
10073 def CheckPrereq(self):
10074 """Check prerequisites.
10077 # Check whether any instance on this node has faulty disks
10078 for inst in _GetNodeInstances(self.cfg, self.op.node_name):
10079 if not inst.admin_up:
10081 check_nodes = set(inst.all_nodes)
10082 check_nodes.discard(self.op.node_name)
10083 for inst_node_name in check_nodes:
10084 self._CheckFaultyDisks(inst, inst_node_name)
10086 def Exec(self, feedback_fn):
10087 feedback_fn("Repairing storage unit '%s' on %s ..." %
10088 (self.op.name, self.op.node_name))
10090 st_args = _GetStorageTypeArgs(self.cfg, self.op.storage_type)
10091 result = self.rpc.call_storage_execute(self.op.node_name,
10092 self.op.storage_type, st_args,
10094 constants.SO_FIX_CONSISTENCY)
10095 result.Raise("Failed to repair storage unit '%s' on %s" %
10096 (self.op.name, self.op.node_name))
10099 class LUNodeEvacuate(NoHooksLU):
10100 """Evacuates instances off a list of nodes.
10105 def CheckArguments(self):
10106 _CheckIAllocatorOrNode(self, "iallocator", "remote_node")
10108 def ExpandNames(self):
10109 self.op.node_name = _ExpandNodeName(self.cfg, self.op.node_name)
10111 if self.op.remote_node is not None:
10112 self.op.remote_node = _ExpandNodeName(self.cfg, self.op.remote_node)
10113 assert self.op.remote_node
10115 if self.op.remote_node == self.op.node_name:
10116 raise errors.OpPrereqError("Can not use evacuated node as a new"
10117 " secondary node", errors.ECODE_INVAL)
10119 if self.op.mode != constants.IALLOCATOR_NEVAC_SEC:
10120 raise errors.OpPrereqError("Without the use of an iallocator only"
10121 " secondary instances can be evacuated",
10122 errors.ECODE_INVAL)
10125 self.share_locks = _ShareAll()
10126 self.needed_locks = {
10127 locking.LEVEL_INSTANCE: [],
10128 locking.LEVEL_NODEGROUP: [],
10129 locking.LEVEL_NODE: [],
10132 # Determine nodes (via group) optimistically, needs verification once locks
10133 # have been acquired
10134 self.lock_nodes = self._DetermineNodes()
10136 def _DetermineNodes(self):
10137 """Gets the list of nodes to operate on.
10140 if self.op.remote_node is None:
10141 # Iallocator will choose any node(s) in the same group
10142 group_nodes = self.cfg.GetNodeGroupMembersByNodes([self.op.node_name])
10144 group_nodes = frozenset([self.op.remote_node])
10146 # Determine nodes to be locked
10147 return set([self.op.node_name]) | group_nodes
10149 def _DetermineInstances(self):
10150 """Builds list of instances to operate on.
10153 assert self.op.mode in constants.IALLOCATOR_NEVAC_MODES
10155 if self.op.mode == constants.IALLOCATOR_NEVAC_PRI:
10156 # Primary instances only
10157 inst_fn = _GetNodePrimaryInstances
10158 assert self.op.remote_node is None, \
10159 "Evacuating primary instances requires iallocator"
10160 elif self.op.mode == constants.IALLOCATOR_NEVAC_SEC:
10161 # Secondary instances only
10162 inst_fn = _GetNodeSecondaryInstances
10165 assert self.op.mode == constants.IALLOCATOR_NEVAC_ALL
10166 inst_fn = _GetNodeInstances
10167 # TODO: In 2.6, change the iallocator interface to take an evacuation mode
10169 raise errors.OpPrereqError("Due to an issue with the iallocator"
10170 " interface it is not possible to evacuate"
10171 " all instances at once; specify explicitly"
10172 " whether to evacuate primary or secondary"
10174 errors.ECODE_INVAL)
10176 return inst_fn(self.cfg, self.op.node_name)
10178 def DeclareLocks(self, level):
10179 if level == locking.LEVEL_INSTANCE:
10180 # Lock instances optimistically, needs verification once node and group
10181 # locks have been acquired
10182 self.needed_locks[locking.LEVEL_INSTANCE] = \
10183 set(i.name for i in self._DetermineInstances())
10185 elif level == locking.LEVEL_NODEGROUP:
10186 # Lock node groups for all potential target nodes optimistically, needs
10187 # verification once nodes have been acquired
10188 self.needed_locks[locking.LEVEL_NODEGROUP] = \
10189 self.cfg.GetNodeGroupsFromNodes(self.lock_nodes)
10191 elif level == locking.LEVEL_NODE:
10192 self.needed_locks[locking.LEVEL_NODE] = self.lock_nodes
10194 def CheckPrereq(self):
10196 owned_instances = self.owned_locks(locking.LEVEL_INSTANCE)
10197 owned_nodes = self.owned_locks(locking.LEVEL_NODE)
10198 owned_groups = self.owned_locks(locking.LEVEL_NODEGROUP)
10200 need_nodes = self._DetermineNodes()
10202 if not owned_nodes.issuperset(need_nodes):
10203 raise errors.OpPrereqError("Nodes in same group as '%s' changed since"
10204 " locks were acquired, current nodes are"
10205 " are '%s', used to be '%s'; retry the"
10207 (self.op.node_name,
10208 utils.CommaJoin(need_nodes),
10209 utils.CommaJoin(owned_nodes)),
10210 errors.ECODE_STATE)
10212 wanted_groups = self.cfg.GetNodeGroupsFromNodes(owned_nodes)
10213 if owned_groups != wanted_groups:
10214 raise errors.OpExecError("Node groups changed since locks were acquired,"
10215 " current groups are '%s', used to be '%s';"
10216 " retry the operation" %
10217 (utils.CommaJoin(wanted_groups),
10218 utils.CommaJoin(owned_groups)))
10220 # Determine affected instances
10221 self.instances = self._DetermineInstances()
10222 self.instance_names = [i.name for i in self.instances]
10224 if set(self.instance_names) != owned_instances:
10225 raise errors.OpExecError("Instances on node '%s' changed since locks"
10226 " were acquired, current instances are '%s',"
10227 " used to be '%s'; retry the operation" %
10228 (self.op.node_name,
10229 utils.CommaJoin(self.instance_names),
10230 utils.CommaJoin(owned_instances)))
10232 if self.instance_names:
10233 self.LogInfo("Evacuating instances from node '%s': %s",
10235 utils.CommaJoin(utils.NiceSort(self.instance_names)))
10237 self.LogInfo("No instances to evacuate from node '%s'",
10240 if self.op.remote_node is not None:
10241 for i in self.instances:
10242 if i.primary_node == self.op.remote_node:
10243 raise errors.OpPrereqError("Node %s is the primary node of"
10244 " instance %s, cannot use it as"
10246 (self.op.remote_node, i.name),
10247 errors.ECODE_INVAL)
10249 def Exec(self, feedback_fn):
10250 assert (self.op.iallocator is not None) ^ (self.op.remote_node is not None)
10252 if not self.instance_names:
10253 # No instances to evacuate
10256 elif self.op.iallocator is not None:
10257 # TODO: Implement relocation to other group
10258 ial = IAllocator(self.cfg, self.rpc, constants.IALLOCATOR_MODE_NODE_EVAC,
10259 evac_mode=self.op.mode,
10260 instances=list(self.instance_names))
10262 ial.Run(self.op.iallocator)
10264 if not ial.success:
10265 raise errors.OpPrereqError("Can't compute node evacuation using"
10266 " iallocator '%s': %s" %
10267 (self.op.iallocator, ial.info),
10268 errors.ECODE_NORES)
10270 jobs = _LoadNodeEvacResult(self, ial.result, self.op.early_release, True)
10272 elif self.op.remote_node is not None:
10273 assert self.op.mode == constants.IALLOCATOR_NEVAC_SEC
10275 [opcodes.OpInstanceReplaceDisks(instance_name=instance_name,
10276 remote_node=self.op.remote_node,
10278 mode=constants.REPLACE_DISK_CHG,
10279 early_release=self.op.early_release)]
10280 for instance_name in self.instance_names
10284 raise errors.ProgrammerError("No iallocator or remote node")
10286 return ResultWithJobs(jobs)
10289 def _SetOpEarlyRelease(early_release, op):
10290 """Sets C{early_release} flag on opcodes if available.
10294 op.early_release = early_release
10295 except AttributeError:
10296 assert not isinstance(op, opcodes.OpInstanceReplaceDisks)
10301 def _NodeEvacDest(use_nodes, group, nodes):
10302 """Returns group or nodes depending on caller's choice.
10306 return utils.CommaJoin(nodes)
10311 def _LoadNodeEvacResult(lu, alloc_result, early_release, use_nodes):
10312 """Unpacks the result of change-group and node-evacuate iallocator requests.
10314 Iallocator modes L{constants.IALLOCATOR_MODE_NODE_EVAC} and
10315 L{constants.IALLOCATOR_MODE_CHG_GROUP}.
10317 @type lu: L{LogicalUnit}
10318 @param lu: Logical unit instance
10319 @type alloc_result: tuple/list
10320 @param alloc_result: Result from iallocator
10321 @type early_release: bool
10322 @param early_release: Whether to release locks early if possible
10323 @type use_nodes: bool
10324 @param use_nodes: Whether to display node names instead of groups
10327 (moved, failed, jobs) = alloc_result
10330 failreason = utils.CommaJoin("%s (%s)" % (name, reason)
10331 for (name, reason) in failed)
10332 lu.LogWarning("Unable to evacuate instances %s", failreason)
10333 raise errors.OpExecError("Unable to evacuate instances %s" % failreason)
10336 lu.LogInfo("Instances to be moved: %s",
10337 utils.CommaJoin("%s (to %s)" %
10338 (name, _NodeEvacDest(use_nodes, group, nodes))
10339 for (name, group, nodes) in moved))
10341 return [map(compat.partial(_SetOpEarlyRelease, early_release),
10342 map(opcodes.OpCode.LoadOpCode, ops))
10346 class LUInstanceGrowDisk(LogicalUnit):
10347 """Grow a disk of an instance.
10350 HPATH = "disk-grow"
10351 HTYPE = constants.HTYPE_INSTANCE
10354 def ExpandNames(self):
10355 self._ExpandAndLockInstance()
10356 self.needed_locks[locking.LEVEL_NODE] = []
10357 self.recalculate_locks[locking.LEVEL_NODE] = constants.LOCKS_REPLACE
10359 def DeclareLocks(self, level):
10360 if level == locking.LEVEL_NODE:
10361 self._LockInstancesNodes()
10363 def BuildHooksEnv(self):
10364 """Build hooks env.
10366 This runs on the master, the primary and all the secondaries.
10370 "DISK": self.op.disk,
10371 "AMOUNT": self.op.amount,
10373 env.update(_BuildInstanceHookEnvByObject(self, self.instance))
10376 def BuildHooksNodes(self):
10377 """Build hooks nodes.
10380 nl = [self.cfg.GetMasterNode()] + list(self.instance.all_nodes)
10383 def CheckPrereq(self):
10384 """Check prerequisites.
10386 This checks that the instance is in the cluster.
10389 instance = self.cfg.GetInstanceInfo(self.op.instance_name)
10390 assert instance is not None, \
10391 "Cannot retrieve locked instance %s" % self.op.instance_name
10392 nodenames = list(instance.all_nodes)
10393 for node in nodenames:
10394 _CheckNodeOnline(self, node)
10396 self.instance = instance
10398 if instance.disk_template not in constants.DTS_GROWABLE:
10399 raise errors.OpPrereqError("Instance's disk layout does not support"
10400 " growing", errors.ECODE_INVAL)
10402 self.disk = instance.FindDisk(self.op.disk)
10404 if instance.disk_template not in (constants.DT_FILE,
10405 constants.DT_SHARED_FILE):
10406 # TODO: check the free disk space for file, when that feature will be
10408 _CheckNodesFreeDiskPerVG(self, nodenames,
10409 self.disk.ComputeGrowth(self.op.amount))
10411 def Exec(self, feedback_fn):
10412 """Execute disk grow.
10415 instance = self.instance
10418 disks_ok, _ = _AssembleInstanceDisks(self, self.instance, disks=[disk])
10420 raise errors.OpExecError("Cannot activate block device to grow")
10422 # First run all grow ops in dry-run mode
10423 for node in instance.all_nodes:
10424 self.cfg.SetDiskID(disk, node)
10425 result = self.rpc.call_blockdev_grow(node, disk, self.op.amount, True)
10426 result.Raise("Grow request failed to node %s" % node)
10428 # We know that (as far as we can test) operations across different
10429 # nodes will succeed, time to run it for real
10430 for node in instance.all_nodes:
10431 self.cfg.SetDiskID(disk, node)
10432 result = self.rpc.call_blockdev_grow(node, disk, self.op.amount, False)
10433 result.Raise("Grow request failed to node %s" % node)
10435 # TODO: Rewrite code to work properly
10436 # DRBD goes into sync mode for a short amount of time after executing the
10437 # "resize" command. DRBD 8.x below version 8.0.13 contains a bug whereby
10438 # calling "resize" in sync mode fails. Sleeping for a short amount of
10439 # time is a work-around.
10442 disk.RecordGrow(self.op.amount)
10443 self.cfg.Update(instance, feedback_fn)
10444 if self.op.wait_for_sync:
10445 disk_abort = not _WaitForSync(self, instance, disks=[disk])
10447 self.proc.LogWarning("Disk sync-ing has not returned a good"
10448 " status; please check the instance")
10449 if not instance.admin_up:
10450 _SafeShutdownInstanceDisks(self, instance, disks=[disk])
10451 elif not instance.admin_up:
10452 self.proc.LogWarning("Not shutting down the disk even if the instance is"
10453 " not supposed to be running because no wait for"
10454 " sync mode was requested")
10457 class LUInstanceQueryData(NoHooksLU):
10458 """Query runtime instance data.
10463 def ExpandNames(self):
10464 self.needed_locks = {}
10466 # Use locking if requested or when non-static information is wanted
10467 if not (self.op.static or self.op.use_locking):
10468 self.LogWarning("Non-static data requested, locks need to be acquired")
10469 self.op.use_locking = True
10471 if self.op.instances or not self.op.use_locking:
10472 # Expand instance names right here
10473 self.wanted_names = _GetWantedInstances(self, self.op.instances)
10475 # Will use acquired locks
10476 self.wanted_names = None
10478 if self.op.use_locking:
10479 self.share_locks = _ShareAll()
10481 if self.wanted_names is None:
10482 self.needed_locks[locking.LEVEL_INSTANCE] = locking.ALL_SET
10484 self.needed_locks[locking.LEVEL_INSTANCE] = self.wanted_names
10486 self.needed_locks[locking.LEVEL_NODE] = []
10487 self.recalculate_locks[locking.LEVEL_NODE] = constants.LOCKS_REPLACE
10489 def DeclareLocks(self, level):
10490 if self.op.use_locking and level == locking.LEVEL_NODE:
10491 self._LockInstancesNodes()
10493 def CheckPrereq(self):
10494 """Check prerequisites.
10496 This only checks the optional instance list against the existing names.
10499 if self.wanted_names is None:
10500 assert self.op.use_locking, "Locking was not used"
10501 self.wanted_names = self.owned_locks(locking.LEVEL_INSTANCE)
10503 self.wanted_instances = \
10504 map(compat.snd, self.cfg.GetMultiInstanceInfo(self.wanted_names))
10506 def _ComputeBlockdevStatus(self, node, instance_name, dev):
10507 """Returns the status of a block device
10510 if self.op.static or not node:
10513 self.cfg.SetDiskID(dev, node)
10515 result = self.rpc.call_blockdev_find(node, dev)
10519 result.Raise("Can't compute disk status for %s" % instance_name)
10521 status = result.payload
10525 return (status.dev_path, status.major, status.minor,
10526 status.sync_percent, status.estimated_time,
10527 status.is_degraded, status.ldisk_status)
10529 def _ComputeDiskStatus(self, instance, snode, dev):
10530 """Compute block device status.
10533 if dev.dev_type in constants.LDS_DRBD:
10534 # we change the snode then (otherwise we use the one passed in)
10535 if dev.logical_id[0] == instance.primary_node:
10536 snode = dev.logical_id[1]
10538 snode = dev.logical_id[0]
10540 dev_pstatus = self._ComputeBlockdevStatus(instance.primary_node,
10541 instance.name, dev)
10542 dev_sstatus = self._ComputeBlockdevStatus(snode, instance.name, dev)
10545 dev_children = map(compat.partial(self._ComputeDiskStatus,
10552 "iv_name": dev.iv_name,
10553 "dev_type": dev.dev_type,
10554 "logical_id": dev.logical_id,
10555 "physical_id": dev.physical_id,
10556 "pstatus": dev_pstatus,
10557 "sstatus": dev_sstatus,
10558 "children": dev_children,
10563 def Exec(self, feedback_fn):
10564 """Gather and return data"""
10567 cluster = self.cfg.GetClusterInfo()
10569 pri_nodes = self.cfg.GetMultiNodeInfo(i.primary_node
10570 for i in self.wanted_instances)
10571 for instance, (_, pnode) in zip(self.wanted_instances, pri_nodes):
10572 if self.op.static or pnode.offline:
10573 remote_state = None
10575 self.LogWarning("Primary node %s is marked offline, returning static"
10576 " information only for instance %s" %
10577 (pnode.name, instance.name))
10579 remote_info = self.rpc.call_instance_info(instance.primary_node,
10581 instance.hypervisor)
10582 remote_info.Raise("Error checking node %s" % instance.primary_node)
10583 remote_info = remote_info.payload
10584 if remote_info and "state" in remote_info:
10585 remote_state = "up"
10587 remote_state = "down"
10589 if instance.admin_up:
10590 config_state = "up"
10592 config_state = "down"
10594 disks = map(compat.partial(self._ComputeDiskStatus, instance, None),
10597 result[instance.name] = {
10598 "name": instance.name,
10599 "config_state": config_state,
10600 "run_state": remote_state,
10601 "pnode": instance.primary_node,
10602 "snodes": instance.secondary_nodes,
10604 # this happens to be the same format used for hooks
10605 "nics": _NICListToTuple(self, instance.nics),
10606 "disk_template": instance.disk_template,
10608 "hypervisor": instance.hypervisor,
10609 "network_port": instance.network_port,
10610 "hv_instance": instance.hvparams,
10611 "hv_actual": cluster.FillHV(instance, skip_globals=True),
10612 "be_instance": instance.beparams,
10613 "be_actual": cluster.FillBE(instance),
10614 "os_instance": instance.osparams,
10615 "os_actual": cluster.SimpleFillOS(instance.os, instance.osparams),
10616 "serial_no": instance.serial_no,
10617 "mtime": instance.mtime,
10618 "ctime": instance.ctime,
10619 "uuid": instance.uuid,
10625 class LUInstanceSetParams(LogicalUnit):
10626 """Modifies an instances's parameters.
10629 HPATH = "instance-modify"
10630 HTYPE = constants.HTYPE_INSTANCE
10633 def CheckArguments(self):
10634 if not (self.op.nics or self.op.disks or self.op.disk_template or
10635 self.op.hvparams or self.op.beparams or self.op.os_name):
10636 raise errors.OpPrereqError("No changes submitted", errors.ECODE_INVAL)
10638 if self.op.hvparams:
10639 _CheckGlobalHvParams(self.op.hvparams)
10643 for disk_op, disk_dict in self.op.disks:
10644 utils.ForceDictType(disk_dict, constants.IDISK_PARAMS_TYPES)
10645 if disk_op == constants.DDM_REMOVE:
10646 disk_addremove += 1
10648 elif disk_op == constants.DDM_ADD:
10649 disk_addremove += 1
10651 if not isinstance(disk_op, int):
10652 raise errors.OpPrereqError("Invalid disk index", errors.ECODE_INVAL)
10653 if not isinstance(disk_dict, dict):
10654 msg = "Invalid disk value: expected dict, got '%s'" % disk_dict
10655 raise errors.OpPrereqError(msg, errors.ECODE_INVAL)
10657 if disk_op == constants.DDM_ADD:
10658 mode = disk_dict.setdefault(constants.IDISK_MODE, constants.DISK_RDWR)
10659 if mode not in constants.DISK_ACCESS_SET:
10660 raise errors.OpPrereqError("Invalid disk access mode '%s'" % mode,
10661 errors.ECODE_INVAL)
10662 size = disk_dict.get(constants.IDISK_SIZE, None)
10664 raise errors.OpPrereqError("Required disk parameter size missing",
10665 errors.ECODE_INVAL)
10668 except (TypeError, ValueError), err:
10669 raise errors.OpPrereqError("Invalid disk size parameter: %s" %
10670 str(err), errors.ECODE_INVAL)
10671 disk_dict[constants.IDISK_SIZE] = size
10673 # modification of disk
10674 if constants.IDISK_SIZE in disk_dict:
10675 raise errors.OpPrereqError("Disk size change not possible, use"
10676 " grow-disk", errors.ECODE_INVAL)
10678 if disk_addremove > 1:
10679 raise errors.OpPrereqError("Only one disk add or remove operation"
10680 " supported at a time", errors.ECODE_INVAL)
10682 if self.op.disks and self.op.disk_template is not None:
10683 raise errors.OpPrereqError("Disk template conversion and other disk"
10684 " changes not supported at the same time",
10685 errors.ECODE_INVAL)
10687 if (self.op.disk_template and
10688 self.op.disk_template in constants.DTS_INT_MIRROR and
10689 self.op.remote_node is None):
10690 raise errors.OpPrereqError("Changing the disk template to a mirrored"
10691 " one requires specifying a secondary node",
10692 errors.ECODE_INVAL)
10696 for nic_op, nic_dict in self.op.nics:
10697 utils.ForceDictType(nic_dict, constants.INIC_PARAMS_TYPES)
10698 if nic_op == constants.DDM_REMOVE:
10701 elif nic_op == constants.DDM_ADD:
10704 if not isinstance(nic_op, int):
10705 raise errors.OpPrereqError("Invalid nic index", errors.ECODE_INVAL)
10706 if not isinstance(nic_dict, dict):
10707 msg = "Invalid nic value: expected dict, got '%s'" % nic_dict
10708 raise errors.OpPrereqError(msg, errors.ECODE_INVAL)
10710 # nic_dict should be a dict
10711 nic_ip = nic_dict.get(constants.INIC_IP, None)
10712 if nic_ip is not None:
10713 if nic_ip.lower() == constants.VALUE_NONE:
10714 nic_dict[constants.INIC_IP] = None
10716 if not netutils.IPAddress.IsValid(nic_ip):
10717 raise errors.OpPrereqError("Invalid IP address '%s'" % nic_ip,
10718 errors.ECODE_INVAL)
10720 nic_bridge = nic_dict.get("bridge", None)
10721 nic_link = nic_dict.get(constants.INIC_LINK, None)
10722 if nic_bridge and nic_link:
10723 raise errors.OpPrereqError("Cannot pass 'bridge' and 'link'"
10724 " at the same time", errors.ECODE_INVAL)
10725 elif nic_bridge and nic_bridge.lower() == constants.VALUE_NONE:
10726 nic_dict["bridge"] = None
10727 elif nic_link and nic_link.lower() == constants.VALUE_NONE:
10728 nic_dict[constants.INIC_LINK] = None
10730 if nic_op == constants.DDM_ADD:
10731 nic_mac = nic_dict.get(constants.INIC_MAC, None)
10732 if nic_mac is None:
10733 nic_dict[constants.INIC_MAC] = constants.VALUE_AUTO
10735 if constants.INIC_MAC in nic_dict:
10736 nic_mac = nic_dict[constants.INIC_MAC]
10737 if nic_mac not in (constants.VALUE_AUTO, constants.VALUE_GENERATE):
10738 nic_mac = utils.NormalizeAndValidateMac(nic_mac)
10740 if nic_op != constants.DDM_ADD and nic_mac == constants.VALUE_AUTO:
10741 raise errors.OpPrereqError("'auto' is not a valid MAC address when"
10742 " modifying an existing nic",
10743 errors.ECODE_INVAL)
10745 if nic_addremove > 1:
10746 raise errors.OpPrereqError("Only one NIC add or remove operation"
10747 " supported at a time", errors.ECODE_INVAL)
10749 def ExpandNames(self):
10750 self._ExpandAndLockInstance()
10751 self.needed_locks[locking.LEVEL_NODE] = []
10752 self.recalculate_locks[locking.LEVEL_NODE] = constants.LOCKS_REPLACE
10754 def DeclareLocks(self, level):
10755 if level == locking.LEVEL_NODE:
10756 self._LockInstancesNodes()
10757 if self.op.disk_template and self.op.remote_node:
10758 self.op.remote_node = _ExpandNodeName(self.cfg, self.op.remote_node)
10759 self.needed_locks[locking.LEVEL_NODE].append(self.op.remote_node)
10761 def BuildHooksEnv(self):
10762 """Build hooks env.
10764 This runs on the master, primary and secondaries.
10768 if constants.BE_MEMORY in self.be_new:
10769 args["memory"] = self.be_new[constants.BE_MEMORY]
10770 if constants.BE_VCPUS in self.be_new:
10771 args["vcpus"] = self.be_new[constants.BE_VCPUS]
10772 # TODO: export disk changes. Note: _BuildInstanceHookEnv* don't export disk
10773 # information at all.
10776 nic_override = dict(self.op.nics)
10777 for idx, nic in enumerate(self.instance.nics):
10778 if idx in nic_override:
10779 this_nic_override = nic_override[idx]
10781 this_nic_override = {}
10782 if constants.INIC_IP in this_nic_override:
10783 ip = this_nic_override[constants.INIC_IP]
10786 if constants.INIC_MAC in this_nic_override:
10787 mac = this_nic_override[constants.INIC_MAC]
10790 if idx in self.nic_pnew:
10791 nicparams = self.nic_pnew[idx]
10793 nicparams = self.cluster.SimpleFillNIC(nic.nicparams)
10794 mode = nicparams[constants.NIC_MODE]
10795 link = nicparams[constants.NIC_LINK]
10796 args["nics"].append((ip, mac, mode, link))
10797 if constants.DDM_ADD in nic_override:
10798 ip = nic_override[constants.DDM_ADD].get(constants.INIC_IP, None)
10799 mac = nic_override[constants.DDM_ADD][constants.INIC_MAC]
10800 nicparams = self.nic_pnew[constants.DDM_ADD]
10801 mode = nicparams[constants.NIC_MODE]
10802 link = nicparams[constants.NIC_LINK]
10803 args["nics"].append((ip, mac, mode, link))
10804 elif constants.DDM_REMOVE in nic_override:
10805 del args["nics"][-1]
10807 env = _BuildInstanceHookEnvByObject(self, self.instance, override=args)
10808 if self.op.disk_template:
10809 env["NEW_DISK_TEMPLATE"] = self.op.disk_template
10813 def BuildHooksNodes(self):
10814 """Build hooks nodes.
10817 nl = [self.cfg.GetMasterNode()] + list(self.instance.all_nodes)
10820 def CheckPrereq(self):
10821 """Check prerequisites.
10823 This only checks the instance list against the existing names.
10826 # checking the new params on the primary/secondary nodes
10828 instance = self.instance = self.cfg.GetInstanceInfo(self.op.instance_name)
10829 cluster = self.cluster = self.cfg.GetClusterInfo()
10830 assert self.instance is not None, \
10831 "Cannot retrieve locked instance %s" % self.op.instance_name
10832 pnode = instance.primary_node
10833 nodelist = list(instance.all_nodes)
10836 if self.op.os_name and not self.op.force:
10837 _CheckNodeHasOS(self, instance.primary_node, self.op.os_name,
10838 self.op.force_variant)
10839 instance_os = self.op.os_name
10841 instance_os = instance.os
10843 if self.op.disk_template:
10844 if instance.disk_template == self.op.disk_template:
10845 raise errors.OpPrereqError("Instance already has disk template %s" %
10846 instance.disk_template, errors.ECODE_INVAL)
10848 if (instance.disk_template,
10849 self.op.disk_template) not in self._DISK_CONVERSIONS:
10850 raise errors.OpPrereqError("Unsupported disk template conversion from"
10851 " %s to %s" % (instance.disk_template,
10852 self.op.disk_template),
10853 errors.ECODE_INVAL)
10854 _CheckInstanceDown(self, instance, "cannot change disk template")
10855 if self.op.disk_template in constants.DTS_INT_MIRROR:
10856 if self.op.remote_node == pnode:
10857 raise errors.OpPrereqError("Given new secondary node %s is the same"
10858 " as the primary node of the instance" %
10859 self.op.remote_node, errors.ECODE_STATE)
10860 _CheckNodeOnline(self, self.op.remote_node)
10861 _CheckNodeNotDrained(self, self.op.remote_node)
10862 # FIXME: here we assume that the old instance type is DT_PLAIN
10863 assert instance.disk_template == constants.DT_PLAIN
10864 disks = [{constants.IDISK_SIZE: d.size,
10865 constants.IDISK_VG: d.logical_id[0]}
10866 for d in instance.disks]
10867 required = _ComputeDiskSizePerVG(self.op.disk_template, disks)
10868 _CheckNodesFreeDiskPerVG(self, [self.op.remote_node], required)
10870 # hvparams processing
10871 if self.op.hvparams:
10872 hv_type = instance.hypervisor
10873 i_hvdict = _GetUpdatedParams(instance.hvparams, self.op.hvparams)
10874 utils.ForceDictType(i_hvdict, constants.HVS_PARAMETER_TYPES)
10875 hv_new = cluster.SimpleFillHV(hv_type, instance.os, i_hvdict)
10878 hypervisor.GetHypervisor(hv_type).CheckParameterSyntax(hv_new)
10879 _CheckHVParams(self, nodelist, instance.hypervisor, hv_new)
10880 self.hv_new = hv_new # the new actual values
10881 self.hv_inst = i_hvdict # the new dict (without defaults)
10883 self.hv_new = self.hv_inst = {}
10885 # beparams processing
10886 if self.op.beparams:
10887 i_bedict = _GetUpdatedParams(instance.beparams, self.op.beparams,
10889 utils.ForceDictType(i_bedict, constants.BES_PARAMETER_TYPES)
10890 be_new = cluster.SimpleFillBE(i_bedict)
10891 self.be_new = be_new # the new actual values
10892 self.be_inst = i_bedict # the new dict (without defaults)
10894 self.be_new = self.be_inst = {}
10895 be_old = cluster.FillBE(instance)
10897 # osparams processing
10898 if self.op.osparams:
10899 i_osdict = _GetUpdatedParams(instance.osparams, self.op.osparams)
10900 _CheckOSParams(self, True, nodelist, instance_os, i_osdict)
10901 self.os_inst = i_osdict # the new dict (without defaults)
10907 if (constants.BE_MEMORY in self.op.beparams and not self.op.force and
10908 be_new[constants.BE_MEMORY] > be_old[constants.BE_MEMORY]):
10909 mem_check_list = [pnode]
10910 if be_new[constants.BE_AUTO_BALANCE]:
10911 # either we changed auto_balance to yes or it was from before
10912 mem_check_list.extend(instance.secondary_nodes)
10913 instance_info = self.rpc.call_instance_info(pnode, instance.name,
10914 instance.hypervisor)
10915 nodeinfo = self.rpc.call_node_info(mem_check_list, None,
10916 instance.hypervisor)
10917 pninfo = nodeinfo[pnode]
10918 msg = pninfo.fail_msg
10920 # Assume the primary node is unreachable and go ahead
10921 self.warn.append("Can't get info from primary node %s: %s" %
10923 elif not isinstance(pninfo.payload.get("memory_free", None), int):
10924 self.warn.append("Node data from primary node %s doesn't contain"
10925 " free memory information" % pnode)
10926 elif instance_info.fail_msg:
10927 self.warn.append("Can't get instance runtime information: %s" %
10928 instance_info.fail_msg)
10930 if instance_info.payload:
10931 current_mem = int(instance_info.payload["memory"])
10933 # Assume instance not running
10934 # (there is a slight race condition here, but it's not very probable,
10935 # and we have no other way to check)
10937 miss_mem = (be_new[constants.BE_MEMORY] - current_mem -
10938 pninfo.payload["memory_free"])
10940 raise errors.OpPrereqError("This change will prevent the instance"
10941 " from starting, due to %d MB of memory"
10942 " missing on its primary node" % miss_mem,
10943 errors.ECODE_NORES)
10945 if be_new[constants.BE_AUTO_BALANCE]:
10946 for node, nres in nodeinfo.items():
10947 if node not in instance.secondary_nodes:
10949 nres.Raise("Can't get info from secondary node %s" % node,
10950 prereq=True, ecode=errors.ECODE_STATE)
10951 if not isinstance(nres.payload.get("memory_free", None), int):
10952 raise errors.OpPrereqError("Secondary node %s didn't return free"
10953 " memory information" % node,
10954 errors.ECODE_STATE)
10955 elif be_new[constants.BE_MEMORY] > nres.payload["memory_free"]:
10956 raise errors.OpPrereqError("This change will prevent the instance"
10957 " from failover to its secondary node"
10958 " %s, due to not enough memory" % node,
10959 errors.ECODE_STATE)
10963 self.nic_pinst = {}
10964 for nic_op, nic_dict in self.op.nics:
10965 if nic_op == constants.DDM_REMOVE:
10966 if not instance.nics:
10967 raise errors.OpPrereqError("Instance has no NICs, cannot remove",
10968 errors.ECODE_INVAL)
10970 if nic_op != constants.DDM_ADD:
10972 if not instance.nics:
10973 raise errors.OpPrereqError("Invalid NIC index %s, instance has"
10974 " no NICs" % nic_op,
10975 errors.ECODE_INVAL)
10976 if nic_op < 0 or nic_op >= len(instance.nics):
10977 raise errors.OpPrereqError("Invalid NIC index %s, valid values"
10979 (nic_op, len(instance.nics) - 1),
10980 errors.ECODE_INVAL)
10981 old_nic_params = instance.nics[nic_op].nicparams
10982 old_nic_ip = instance.nics[nic_op].ip
10984 old_nic_params = {}
10987 update_params_dict = dict([(key, nic_dict[key])
10988 for key in constants.NICS_PARAMETERS
10989 if key in nic_dict])
10991 if "bridge" in nic_dict:
10992 update_params_dict[constants.NIC_LINK] = nic_dict["bridge"]
10994 new_nic_params = _GetUpdatedParams(old_nic_params,
10995 update_params_dict)
10996 utils.ForceDictType(new_nic_params, constants.NICS_PARAMETER_TYPES)
10997 new_filled_nic_params = cluster.SimpleFillNIC(new_nic_params)
10998 objects.NIC.CheckParameterSyntax(new_filled_nic_params)
10999 self.nic_pinst[nic_op] = new_nic_params
11000 self.nic_pnew[nic_op] = new_filled_nic_params
11001 new_nic_mode = new_filled_nic_params[constants.NIC_MODE]
11003 if new_nic_mode == constants.NIC_MODE_BRIDGED:
11004 nic_bridge = new_filled_nic_params[constants.NIC_LINK]
11005 msg = self.rpc.call_bridges_exist(pnode, [nic_bridge]).fail_msg
11007 msg = "Error checking bridges on node %s: %s" % (pnode, msg)
11009 self.warn.append(msg)
11011 raise errors.OpPrereqError(msg, errors.ECODE_ENVIRON)
11012 if new_nic_mode == constants.NIC_MODE_ROUTED:
11013 if constants.INIC_IP in nic_dict:
11014 nic_ip = nic_dict[constants.INIC_IP]
11016 nic_ip = old_nic_ip
11018 raise errors.OpPrereqError("Cannot set the nic ip to None"
11019 " on a routed nic", errors.ECODE_INVAL)
11020 if constants.INIC_MAC in nic_dict:
11021 nic_mac = nic_dict[constants.INIC_MAC]
11022 if nic_mac is None:
11023 raise errors.OpPrereqError("Cannot set the nic mac to None",
11024 errors.ECODE_INVAL)
11025 elif nic_mac in (constants.VALUE_AUTO, constants.VALUE_GENERATE):
11026 # otherwise generate the mac
11027 nic_dict[constants.INIC_MAC] = \
11028 self.cfg.GenerateMAC(self.proc.GetECId())
11030 # or validate/reserve the current one
11032 self.cfg.ReserveMAC(nic_mac, self.proc.GetECId())
11033 except errors.ReservationError:
11034 raise errors.OpPrereqError("MAC address %s already in use"
11035 " in cluster" % nic_mac,
11036 errors.ECODE_NOTUNIQUE)
11039 if self.op.disks and instance.disk_template == constants.DT_DISKLESS:
11040 raise errors.OpPrereqError("Disk operations not supported for"
11041 " diskless instances",
11042 errors.ECODE_INVAL)
11043 for disk_op, _ in self.op.disks:
11044 if disk_op == constants.DDM_REMOVE:
11045 if len(instance.disks) == 1:
11046 raise errors.OpPrereqError("Cannot remove the last disk of"
11047 " an instance", errors.ECODE_INVAL)
11048 _CheckInstanceDown(self, instance, "cannot remove disks")
11050 if (disk_op == constants.DDM_ADD and
11051 len(instance.disks) >= constants.MAX_DISKS):
11052 raise errors.OpPrereqError("Instance has too many disks (%d), cannot"
11053 " add more" % constants.MAX_DISKS,
11054 errors.ECODE_STATE)
11055 if disk_op not in (constants.DDM_ADD, constants.DDM_REMOVE):
11057 if disk_op < 0 or disk_op >= len(instance.disks):
11058 raise errors.OpPrereqError("Invalid disk index %s, valid values"
11060 (disk_op, len(instance.disks)),
11061 errors.ECODE_INVAL)
11065 def _ConvertPlainToDrbd(self, feedback_fn):
11066 """Converts an instance from plain to drbd.
11069 feedback_fn("Converting template to drbd")
11070 instance = self.instance
11071 pnode = instance.primary_node
11072 snode = self.op.remote_node
11074 # create a fake disk info for _GenerateDiskTemplate
11075 disk_info = [{constants.IDISK_SIZE: d.size, constants.IDISK_MODE: d.mode,
11076 constants.IDISK_VG: d.logical_id[0]}
11077 for d in instance.disks]
11078 new_disks = _GenerateDiskTemplate(self, self.op.disk_template,
11079 instance.name, pnode, [snode],
11080 disk_info, None, None, 0, feedback_fn)
11081 info = _GetInstanceInfoText(instance)
11082 feedback_fn("Creating aditional volumes...")
11083 # first, create the missing data and meta devices
11084 for disk in new_disks:
11085 # unfortunately this is... not too nice
11086 _CreateSingleBlockDev(self, pnode, instance, disk.children[1],
11088 for child in disk.children:
11089 _CreateSingleBlockDev(self, snode, instance, child, info, True)
11090 # at this stage, all new LVs have been created, we can rename the
11092 feedback_fn("Renaming original volumes...")
11093 rename_list = [(o, n.children[0].logical_id)
11094 for (o, n) in zip(instance.disks, new_disks)]
11095 result = self.rpc.call_blockdev_rename(pnode, rename_list)
11096 result.Raise("Failed to rename original LVs")
11098 feedback_fn("Initializing DRBD devices...")
11099 # all child devices are in place, we can now create the DRBD devices
11100 for disk in new_disks:
11101 for node in [pnode, snode]:
11102 f_create = node == pnode
11103 _CreateSingleBlockDev(self, node, instance, disk, info, f_create)
11105 # at this point, the instance has been modified
11106 instance.disk_template = constants.DT_DRBD8
11107 instance.disks = new_disks
11108 self.cfg.Update(instance, feedback_fn)
11110 # disks are created, waiting for sync
11111 disk_abort = not _WaitForSync(self, instance,
11112 oneshot=not self.op.wait_for_sync)
11114 raise errors.OpExecError("There are some degraded disks for"
11115 " this instance, please cleanup manually")
11117 def _ConvertDrbdToPlain(self, feedback_fn):
11118 """Converts an instance from drbd to plain.
11121 instance = self.instance
11122 assert len(instance.secondary_nodes) == 1
11123 pnode = instance.primary_node
11124 snode = instance.secondary_nodes[0]
11125 feedback_fn("Converting template to plain")
11127 old_disks = instance.disks
11128 new_disks = [d.children[0] for d in old_disks]
11130 # copy over size and mode
11131 for parent, child in zip(old_disks, new_disks):
11132 child.size = parent.size
11133 child.mode = parent.mode
11135 # this is a DRBD disk, return its port to the pool
11136 # NOTE: this must be done right before the call to cfg.Update!
11137 for disk in old_disks:
11138 tcp_port = disk.logical_id[2]
11139 self.cfg.AddTcpUdpPort(tcp_port)
11141 # update instance structure
11142 instance.disks = new_disks
11143 instance.disk_template = constants.DT_PLAIN
11144 self.cfg.Update(instance, feedback_fn)
11146 feedback_fn("Removing volumes on the secondary node...")
11147 for disk in old_disks:
11148 self.cfg.SetDiskID(disk, snode)
11149 msg = self.rpc.call_blockdev_remove(snode, disk).fail_msg
11151 self.LogWarning("Could not remove block device %s on node %s,"
11152 " continuing anyway: %s", disk.iv_name, snode, msg)
11154 feedback_fn("Removing unneeded volumes on the primary node...")
11155 for idx, disk in enumerate(old_disks):
11156 meta = disk.children[1]
11157 self.cfg.SetDiskID(meta, pnode)
11158 msg = self.rpc.call_blockdev_remove(pnode, meta).fail_msg
11160 self.LogWarning("Could not remove metadata for disk %d on node %s,"
11161 " continuing anyway: %s", idx, pnode, msg)
11164 def Exec(self, feedback_fn):
11165 """Modifies an instance.
11167 All parameters take effect only at the next restart of the instance.
11170 # Process here the warnings from CheckPrereq, as we don't have a
11171 # feedback_fn there.
11172 for warn in self.warn:
11173 feedback_fn("WARNING: %s" % warn)
11176 instance = self.instance
11178 for disk_op, disk_dict in self.op.disks:
11179 if disk_op == constants.DDM_REMOVE:
11180 # remove the last disk
11181 device = instance.disks.pop()
11182 device_idx = len(instance.disks)
11183 for node, disk in device.ComputeNodeTree(instance.primary_node):
11184 self.cfg.SetDiskID(disk, node)
11185 msg = self.rpc.call_blockdev_remove(node, disk).fail_msg
11187 self.LogWarning("Could not remove disk/%d on node %s: %s,"
11188 " continuing anyway", device_idx, node, msg)
11189 result.append(("disk/%d" % device_idx, "remove"))
11191 # if this is a DRBD disk, return its port to the pool
11192 if device.dev_type in constants.LDS_DRBD:
11193 tcp_port = device.logical_id[2]
11194 self.cfg.AddTcpUdpPort(tcp_port)
11195 elif disk_op == constants.DDM_ADD:
11197 if instance.disk_template in (constants.DT_FILE,
11198 constants.DT_SHARED_FILE):
11199 file_driver, file_path = instance.disks[0].logical_id
11200 file_path = os.path.dirname(file_path)
11202 file_driver = file_path = None
11203 disk_idx_base = len(instance.disks)
11204 new_disk = _GenerateDiskTemplate(self,
11205 instance.disk_template,
11206 instance.name, instance.primary_node,
11207 instance.secondary_nodes,
11211 disk_idx_base, feedback_fn)[0]
11212 instance.disks.append(new_disk)
11213 info = _GetInstanceInfoText(instance)
11215 logging.info("Creating volume %s for instance %s",
11216 new_disk.iv_name, instance.name)
11217 # Note: this needs to be kept in sync with _CreateDisks
11219 for node in instance.all_nodes:
11220 f_create = node == instance.primary_node
11222 _CreateBlockDev(self, node, instance, new_disk,
11223 f_create, info, f_create)
11224 except errors.OpExecError, err:
11225 self.LogWarning("Failed to create volume %s (%s) on"
11227 new_disk.iv_name, new_disk, node, err)
11228 result.append(("disk/%d" % disk_idx_base, "add:size=%s,mode=%s" %
11229 (new_disk.size, new_disk.mode)))
11231 # change a given disk
11232 instance.disks[disk_op].mode = disk_dict[constants.IDISK_MODE]
11233 result.append(("disk.mode/%d" % disk_op,
11234 disk_dict[constants.IDISK_MODE]))
11236 if self.op.disk_template:
11237 r_shut = _ShutdownInstanceDisks(self, instance)
11239 raise errors.OpExecError("Cannot shutdown instance disks, unable to"
11240 " proceed with disk template conversion")
11241 mode = (instance.disk_template, self.op.disk_template)
11243 self._DISK_CONVERSIONS[mode](self, feedback_fn)
11245 self.cfg.ReleaseDRBDMinors(instance.name)
11247 result.append(("disk_template", self.op.disk_template))
11250 for nic_op, nic_dict in self.op.nics:
11251 if nic_op == constants.DDM_REMOVE:
11252 # remove the last nic
11253 del instance.nics[-1]
11254 result.append(("nic.%d" % len(instance.nics), "remove"))
11255 elif nic_op == constants.DDM_ADD:
11256 # mac and bridge should be set, by now
11257 mac = nic_dict[constants.INIC_MAC]
11258 ip = nic_dict.get(constants.INIC_IP, None)
11259 nicparams = self.nic_pinst[constants.DDM_ADD]
11260 new_nic = objects.NIC(mac=mac, ip=ip, nicparams=nicparams)
11261 instance.nics.append(new_nic)
11262 result.append(("nic.%d" % (len(instance.nics) - 1),
11263 "add:mac=%s,ip=%s,mode=%s,link=%s" %
11264 (new_nic.mac, new_nic.ip,
11265 self.nic_pnew[constants.DDM_ADD][constants.NIC_MODE],
11266 self.nic_pnew[constants.DDM_ADD][constants.NIC_LINK]
11269 for key in (constants.INIC_MAC, constants.INIC_IP):
11270 if key in nic_dict:
11271 setattr(instance.nics[nic_op], key, nic_dict[key])
11272 if nic_op in self.nic_pinst:
11273 instance.nics[nic_op].nicparams = self.nic_pinst[nic_op]
11274 for key, val in nic_dict.iteritems():
11275 result.append(("nic.%s/%d" % (key, nic_op), val))
11278 if self.op.hvparams:
11279 instance.hvparams = self.hv_inst
11280 for key, val in self.op.hvparams.iteritems():
11281 result.append(("hv/%s" % key, val))
11284 if self.op.beparams:
11285 instance.beparams = self.be_inst
11286 for key, val in self.op.beparams.iteritems():
11287 result.append(("be/%s" % key, val))
11290 if self.op.os_name:
11291 instance.os = self.op.os_name
11294 if self.op.osparams:
11295 instance.osparams = self.os_inst
11296 for key, val in self.op.osparams.iteritems():
11297 result.append(("os/%s" % key, val))
11299 self.cfg.Update(instance, feedback_fn)
11303 _DISK_CONVERSIONS = {
11304 (constants.DT_PLAIN, constants.DT_DRBD8): _ConvertPlainToDrbd,
11305 (constants.DT_DRBD8, constants.DT_PLAIN): _ConvertDrbdToPlain,
11309 class LUInstanceChangeGroup(LogicalUnit):
11310 HPATH = "instance-change-group"
11311 HTYPE = constants.HTYPE_INSTANCE
11314 def ExpandNames(self):
11315 self.share_locks = _ShareAll()
11316 self.needed_locks = {
11317 locking.LEVEL_NODEGROUP: [],
11318 locking.LEVEL_NODE: [],
11321 self._ExpandAndLockInstance()
11323 if self.op.target_groups:
11324 self.req_target_uuids = map(self.cfg.LookupNodeGroup,
11325 self.op.target_groups)
11327 self.req_target_uuids = None
11329 self.op.iallocator = _GetDefaultIAllocator(self.cfg, self.op.iallocator)
11331 def DeclareLocks(self, level):
11332 if level == locking.LEVEL_NODEGROUP:
11333 assert not self.needed_locks[locking.LEVEL_NODEGROUP]
11335 if self.req_target_uuids:
11336 lock_groups = set(self.req_target_uuids)
11338 # Lock all groups used by instance optimistically; this requires going
11339 # via the node before it's locked, requiring verification later on
11340 instance_groups = self.cfg.GetInstanceNodeGroups(self.op.instance_name)
11341 lock_groups.update(instance_groups)
11343 # No target groups, need to lock all of them
11344 lock_groups = locking.ALL_SET
11346 self.needed_locks[locking.LEVEL_NODEGROUP] = lock_groups
11348 elif level == locking.LEVEL_NODE:
11349 if self.req_target_uuids:
11350 # Lock all nodes used by instances
11351 self.recalculate_locks[locking.LEVEL_NODE] = constants.LOCKS_APPEND
11352 self._LockInstancesNodes()
11354 # Lock all nodes in all potential target groups
11355 lock_groups = (frozenset(self.owned_locks(locking.LEVEL_NODEGROUP)) -
11356 self.cfg.GetInstanceNodeGroups(self.op.instance_name))
11357 member_nodes = [node_name
11358 for group in lock_groups
11359 for node_name in self.cfg.GetNodeGroup(group).members]
11360 self.needed_locks[locking.LEVEL_NODE].extend(member_nodes)
11362 # Lock all nodes as all groups are potential targets
11363 self.needed_locks[locking.LEVEL_NODE] = locking.ALL_SET
11365 def CheckPrereq(self):
11366 owned_instances = frozenset(self.owned_locks(locking.LEVEL_INSTANCE))
11367 owned_groups = frozenset(self.owned_locks(locking.LEVEL_NODEGROUP))
11368 owned_nodes = frozenset(self.owned_locks(locking.LEVEL_NODE))
11370 assert (self.req_target_uuids is None or
11371 owned_groups.issuperset(self.req_target_uuids))
11372 assert owned_instances == set([self.op.instance_name])
11374 # Get instance information
11375 self.instance = self.cfg.GetInstanceInfo(self.op.instance_name)
11377 # Check if node groups for locked instance are still correct
11378 assert owned_nodes.issuperset(self.instance.all_nodes), \
11379 ("Instance %s's nodes changed while we kept the lock" %
11380 self.op.instance_name)
11382 inst_groups = _CheckInstanceNodeGroups(self.cfg, self.op.instance_name,
11385 if self.req_target_uuids:
11386 # User requested specific target groups
11387 self.target_uuids = frozenset(self.req_target_uuids)
11389 # All groups except those used by the instance are potential targets
11390 self.target_uuids = owned_groups - inst_groups
11392 conflicting_groups = self.target_uuids & inst_groups
11393 if conflicting_groups:
11394 raise errors.OpPrereqError("Can't use group(s) '%s' as targets, they are"
11395 " used by the instance '%s'" %
11396 (utils.CommaJoin(conflicting_groups),
11397 self.op.instance_name),
11398 errors.ECODE_INVAL)
11400 if not self.target_uuids:
11401 raise errors.OpPrereqError("There are no possible target groups",
11402 errors.ECODE_INVAL)
11404 def BuildHooksEnv(self):
11405 """Build hooks env.
11408 assert self.target_uuids
11411 "TARGET_GROUPS": " ".join(self.target_uuids),
11414 env.update(_BuildInstanceHookEnvByObject(self, self.instance))
11418 def BuildHooksNodes(self):
11419 """Build hooks nodes.
11422 mn = self.cfg.GetMasterNode()
11423 return ([mn], [mn])
11425 def Exec(self, feedback_fn):
11426 instances = list(self.owned_locks(locking.LEVEL_INSTANCE))
11428 assert instances == [self.op.instance_name], "Instance not locked"
11430 ial = IAllocator(self.cfg, self.rpc, constants.IALLOCATOR_MODE_CHG_GROUP,
11431 instances=instances, target_groups=list(self.target_uuids))
11433 ial.Run(self.op.iallocator)
11435 if not ial.success:
11436 raise errors.OpPrereqError("Can't compute solution for changing group of"
11437 " instance '%s' using iallocator '%s': %s" %
11438 (self.op.instance_name, self.op.iallocator,
11440 errors.ECODE_NORES)
11442 jobs = _LoadNodeEvacResult(self, ial.result, self.op.early_release, False)
11444 self.LogInfo("Iallocator returned %s job(s) for changing group of"
11445 " instance '%s'", len(jobs), self.op.instance_name)
11447 return ResultWithJobs(jobs)
11450 class LUBackupQuery(NoHooksLU):
11451 """Query the exports list
11456 def ExpandNames(self):
11457 self.needed_locks = {}
11458 self.share_locks[locking.LEVEL_NODE] = 1
11459 if not self.op.nodes:
11460 self.needed_locks[locking.LEVEL_NODE] = locking.ALL_SET
11462 self.needed_locks[locking.LEVEL_NODE] = \
11463 _GetWantedNodes(self, self.op.nodes)
11465 def Exec(self, feedback_fn):
11466 """Compute the list of all the exported system images.
11469 @return: a dictionary with the structure node->(export-list)
11470 where export-list is a list of the instances exported on
11474 self.nodes = self.owned_locks(locking.LEVEL_NODE)
11475 rpcresult = self.rpc.call_export_list(self.nodes)
11477 for node in rpcresult:
11478 if rpcresult[node].fail_msg:
11479 result[node] = False
11481 result[node] = rpcresult[node].payload
11486 class LUBackupPrepare(NoHooksLU):
11487 """Prepares an instance for an export and returns useful information.
11492 def ExpandNames(self):
11493 self._ExpandAndLockInstance()
11495 def CheckPrereq(self):
11496 """Check prerequisites.
11499 instance_name = self.op.instance_name
11501 self.instance = self.cfg.GetInstanceInfo(instance_name)
11502 assert self.instance is not None, \
11503 "Cannot retrieve locked instance %s" % self.op.instance_name
11504 _CheckNodeOnline(self, self.instance.primary_node)
11506 self._cds = _GetClusterDomainSecret()
11508 def Exec(self, feedback_fn):
11509 """Prepares an instance for an export.
11512 instance = self.instance
11514 if self.op.mode == constants.EXPORT_MODE_REMOTE:
11515 salt = utils.GenerateSecret(8)
11517 feedback_fn("Generating X509 certificate on %s" % instance.primary_node)
11518 result = self.rpc.call_x509_cert_create(instance.primary_node,
11519 constants.RIE_CERT_VALIDITY)
11520 result.Raise("Can't create X509 key and certificate on %s" % result.node)
11522 (name, cert_pem) = result.payload
11524 cert = OpenSSL.crypto.load_certificate(OpenSSL.crypto.FILETYPE_PEM,
11528 "handshake": masterd.instance.ComputeRemoteExportHandshake(self._cds),
11529 "x509_key_name": (name, utils.Sha1Hmac(self._cds, name, salt=salt),
11531 "x509_ca": utils.SignX509Certificate(cert, self._cds, salt),
11537 class LUBackupExport(LogicalUnit):
11538 """Export an instance to an image in the cluster.
11541 HPATH = "instance-export"
11542 HTYPE = constants.HTYPE_INSTANCE
11545 def CheckArguments(self):
11546 """Check the arguments.
11549 self.x509_key_name = self.op.x509_key_name
11550 self.dest_x509_ca_pem = self.op.destination_x509_ca
11552 if self.op.mode == constants.EXPORT_MODE_REMOTE:
11553 if not self.x509_key_name:
11554 raise errors.OpPrereqError("Missing X509 key name for encryption",
11555 errors.ECODE_INVAL)
11557 if not self.dest_x509_ca_pem:
11558 raise errors.OpPrereqError("Missing destination X509 CA",
11559 errors.ECODE_INVAL)
11561 def ExpandNames(self):
11562 self._ExpandAndLockInstance()
11564 # Lock all nodes for local exports
11565 if self.op.mode == constants.EXPORT_MODE_LOCAL:
11566 # FIXME: lock only instance primary and destination node
11568 # Sad but true, for now we have do lock all nodes, as we don't know where
11569 # the previous export might be, and in this LU we search for it and
11570 # remove it from its current node. In the future we could fix this by:
11571 # - making a tasklet to search (share-lock all), then create the
11572 # new one, then one to remove, after
11573 # - removing the removal operation altogether
11574 self.needed_locks[locking.LEVEL_NODE] = locking.ALL_SET
11576 def DeclareLocks(self, level):
11577 """Last minute lock declaration."""
11578 # All nodes are locked anyway, so nothing to do here.
11580 def BuildHooksEnv(self):
11581 """Build hooks env.
11583 This will run on the master, primary node and target node.
11587 "EXPORT_MODE": self.op.mode,
11588 "EXPORT_NODE": self.op.target_node,
11589 "EXPORT_DO_SHUTDOWN": self.op.shutdown,
11590 "SHUTDOWN_TIMEOUT": self.op.shutdown_timeout,
11591 # TODO: Generic function for boolean env variables
11592 "REMOVE_INSTANCE": str(bool(self.op.remove_instance)),
11595 env.update(_BuildInstanceHookEnvByObject(self, self.instance))
11599 def BuildHooksNodes(self):
11600 """Build hooks nodes.
11603 nl = [self.cfg.GetMasterNode(), self.instance.primary_node]
11605 if self.op.mode == constants.EXPORT_MODE_LOCAL:
11606 nl.append(self.op.target_node)
11610 def CheckPrereq(self):
11611 """Check prerequisites.
11613 This checks that the instance and node names are valid.
11616 instance_name = self.op.instance_name
11618 self.instance = self.cfg.GetInstanceInfo(instance_name)
11619 assert self.instance is not None, \
11620 "Cannot retrieve locked instance %s" % self.op.instance_name
11621 _CheckNodeOnline(self, self.instance.primary_node)
11623 if (self.op.remove_instance and self.instance.admin_up and
11624 not self.op.shutdown):
11625 raise errors.OpPrereqError("Can not remove instance without shutting it"
11628 if self.op.mode == constants.EXPORT_MODE_LOCAL:
11629 self.op.target_node = _ExpandNodeName(self.cfg, self.op.target_node)
11630 self.dst_node = self.cfg.GetNodeInfo(self.op.target_node)
11631 assert self.dst_node is not None
11633 _CheckNodeOnline(self, self.dst_node.name)
11634 _CheckNodeNotDrained(self, self.dst_node.name)
11637 self.dest_disk_info = None
11638 self.dest_x509_ca = None
11640 elif self.op.mode == constants.EXPORT_MODE_REMOTE:
11641 self.dst_node = None
11643 if len(self.op.target_node) != len(self.instance.disks):
11644 raise errors.OpPrereqError(("Received destination information for %s"
11645 " disks, but instance %s has %s disks") %
11646 (len(self.op.target_node), instance_name,
11647 len(self.instance.disks)),
11648 errors.ECODE_INVAL)
11650 cds = _GetClusterDomainSecret()
11652 # Check X509 key name
11654 (key_name, hmac_digest, hmac_salt) = self.x509_key_name
11655 except (TypeError, ValueError), err:
11656 raise errors.OpPrereqError("Invalid data for X509 key name: %s" % err)
11658 if not utils.VerifySha1Hmac(cds, key_name, hmac_digest, salt=hmac_salt):
11659 raise errors.OpPrereqError("HMAC for X509 key name is wrong",
11660 errors.ECODE_INVAL)
11662 # Load and verify CA
11664 (cert, _) = utils.LoadSignedX509Certificate(self.dest_x509_ca_pem, cds)
11665 except OpenSSL.crypto.Error, err:
11666 raise errors.OpPrereqError("Unable to load destination X509 CA (%s)" %
11667 (err, ), errors.ECODE_INVAL)
11669 (errcode, msg) = utils.VerifyX509Certificate(cert, None, None)
11670 if errcode is not None:
11671 raise errors.OpPrereqError("Invalid destination X509 CA (%s)" %
11672 (msg, ), errors.ECODE_INVAL)
11674 self.dest_x509_ca = cert
11676 # Verify target information
11678 for idx, disk_data in enumerate(self.op.target_node):
11680 (host, port, magic) = \
11681 masterd.instance.CheckRemoteExportDiskInfo(cds, idx, disk_data)
11682 except errors.GenericError, err:
11683 raise errors.OpPrereqError("Target info for disk %s: %s" %
11684 (idx, err), errors.ECODE_INVAL)
11686 disk_info.append((host, port, magic))
11688 assert len(disk_info) == len(self.op.target_node)
11689 self.dest_disk_info = disk_info
11692 raise errors.ProgrammerError("Unhandled export mode %r" %
11695 # instance disk type verification
11696 # TODO: Implement export support for file-based disks
11697 for disk in self.instance.disks:
11698 if disk.dev_type == constants.LD_FILE:
11699 raise errors.OpPrereqError("Export not supported for instances with"
11700 " file-based disks", errors.ECODE_INVAL)
11702 def _CleanupExports(self, feedback_fn):
11703 """Removes exports of current instance from all other nodes.
11705 If an instance in a cluster with nodes A..D was exported to node C, its
11706 exports will be removed from the nodes A, B and D.
11709 assert self.op.mode != constants.EXPORT_MODE_REMOTE
11711 nodelist = self.cfg.GetNodeList()
11712 nodelist.remove(self.dst_node.name)
11714 # on one-node clusters nodelist will be empty after the removal
11715 # if we proceed the backup would be removed because OpBackupQuery
11716 # substitutes an empty list with the full cluster node list.
11717 iname = self.instance.name
11719 feedback_fn("Removing old exports for instance %s" % iname)
11720 exportlist = self.rpc.call_export_list(nodelist)
11721 for node in exportlist:
11722 if exportlist[node].fail_msg:
11724 if iname in exportlist[node].payload:
11725 msg = self.rpc.call_export_remove(node, iname).fail_msg
11727 self.LogWarning("Could not remove older export for instance %s"
11728 " on node %s: %s", iname, node, msg)
11730 def Exec(self, feedback_fn):
11731 """Export an instance to an image in the cluster.
11734 assert self.op.mode in constants.EXPORT_MODES
11736 instance = self.instance
11737 src_node = instance.primary_node
11739 if self.op.shutdown:
11740 # shutdown the instance, but not the disks
11741 feedback_fn("Shutting down instance %s" % instance.name)
11742 result = self.rpc.call_instance_shutdown(src_node, instance,
11743 self.op.shutdown_timeout)
11744 # TODO: Maybe ignore failures if ignore_remove_failures is set
11745 result.Raise("Could not shutdown instance %s on"
11746 " node %s" % (instance.name, src_node))
11748 # set the disks ID correctly since call_instance_start needs the
11749 # correct drbd minor to create the symlinks
11750 for disk in instance.disks:
11751 self.cfg.SetDiskID(disk, src_node)
11753 activate_disks = (not instance.admin_up)
11756 # Activate the instance disks if we'exporting a stopped instance
11757 feedback_fn("Activating disks for %s" % instance.name)
11758 _StartInstanceDisks(self, instance, None)
11761 helper = masterd.instance.ExportInstanceHelper(self, feedback_fn,
11764 helper.CreateSnapshots()
11766 if (self.op.shutdown and instance.admin_up and
11767 not self.op.remove_instance):
11768 assert not activate_disks
11769 feedback_fn("Starting instance %s" % instance.name)
11770 result = self.rpc.call_instance_start(src_node, instance,
11772 msg = result.fail_msg
11774 feedback_fn("Failed to start instance: %s" % msg)
11775 _ShutdownInstanceDisks(self, instance)
11776 raise errors.OpExecError("Could not start instance: %s" % msg)
11778 if self.op.mode == constants.EXPORT_MODE_LOCAL:
11779 (fin_resu, dresults) = helper.LocalExport(self.dst_node)
11780 elif self.op.mode == constants.EXPORT_MODE_REMOTE:
11781 connect_timeout = constants.RIE_CONNECT_TIMEOUT
11782 timeouts = masterd.instance.ImportExportTimeouts(connect_timeout)
11784 (key_name, _, _) = self.x509_key_name
11787 OpenSSL.crypto.dump_certificate(OpenSSL.crypto.FILETYPE_PEM,
11790 (fin_resu, dresults) = helper.RemoteExport(self.dest_disk_info,
11791 key_name, dest_ca_pem,
11796 # Check for backwards compatibility
11797 assert len(dresults) == len(instance.disks)
11798 assert compat.all(isinstance(i, bool) for i in dresults), \
11799 "Not all results are boolean: %r" % dresults
11803 feedback_fn("Deactivating disks for %s" % instance.name)
11804 _ShutdownInstanceDisks(self, instance)
11806 if not (compat.all(dresults) and fin_resu):
11809 failures.append("export finalization")
11810 if not compat.all(dresults):
11811 fdsk = utils.CommaJoin(idx for (idx, dsk) in enumerate(dresults)
11813 failures.append("disk export: disk(s) %s" % fdsk)
11815 raise errors.OpExecError("Export failed, errors in %s" %
11816 utils.CommaJoin(failures))
11818 # At this point, the export was successful, we can cleanup/finish
11820 # Remove instance if requested
11821 if self.op.remove_instance:
11822 feedback_fn("Removing instance %s" % instance.name)
11823 _RemoveInstance(self, feedback_fn, instance,
11824 self.op.ignore_remove_failures)
11826 if self.op.mode == constants.EXPORT_MODE_LOCAL:
11827 self._CleanupExports(feedback_fn)
11829 return fin_resu, dresults
11832 class LUBackupRemove(NoHooksLU):
11833 """Remove exports related to the named instance.
11838 def ExpandNames(self):
11839 self.needed_locks = {}
11840 # We need all nodes to be locked in order for RemoveExport to work, but we
11841 # don't need to lock the instance itself, as nothing will happen to it (and
11842 # we can remove exports also for a removed instance)
11843 self.needed_locks[locking.LEVEL_NODE] = locking.ALL_SET
11845 def Exec(self, feedback_fn):
11846 """Remove any export.
11849 instance_name = self.cfg.ExpandInstanceName(self.op.instance_name)
11850 # If the instance was not found we'll try with the name that was passed in.
11851 # This will only work if it was an FQDN, though.
11853 if not instance_name:
11855 instance_name = self.op.instance_name
11857 locked_nodes = self.owned_locks(locking.LEVEL_NODE)
11858 exportlist = self.rpc.call_export_list(locked_nodes)
11860 for node in exportlist:
11861 msg = exportlist[node].fail_msg
11863 self.LogWarning("Failed to query node %s (continuing): %s", node, msg)
11865 if instance_name in exportlist[node].payload:
11867 result = self.rpc.call_export_remove(node, instance_name)
11868 msg = result.fail_msg
11870 logging.error("Could not remove export for instance %s"
11871 " on node %s: %s", instance_name, node, msg)
11873 if fqdn_warn and not found:
11874 feedback_fn("Export not found. If trying to remove an export belonging"
11875 " to a deleted instance please use its Fully Qualified"
11879 class LUGroupAdd(LogicalUnit):
11880 """Logical unit for creating node groups.
11883 HPATH = "group-add"
11884 HTYPE = constants.HTYPE_GROUP
11887 def ExpandNames(self):
11888 # We need the new group's UUID here so that we can create and acquire the
11889 # corresponding lock. Later, in Exec(), we'll indicate to cfg.AddNodeGroup
11890 # that it should not check whether the UUID exists in the configuration.
11891 self.group_uuid = self.cfg.GenerateUniqueID(self.proc.GetECId())
11892 self.needed_locks = {}
11893 self.add_locks[locking.LEVEL_NODEGROUP] = self.group_uuid
11895 def CheckPrereq(self):
11896 """Check prerequisites.
11898 This checks that the given group name is not an existing node group
11903 existing_uuid = self.cfg.LookupNodeGroup(self.op.group_name)
11904 except errors.OpPrereqError:
11907 raise errors.OpPrereqError("Desired group name '%s' already exists as a"
11908 " node group (UUID: %s)" %
11909 (self.op.group_name, existing_uuid),
11910 errors.ECODE_EXISTS)
11912 if self.op.ndparams:
11913 utils.ForceDictType(self.op.ndparams, constants.NDS_PARAMETER_TYPES)
11915 def BuildHooksEnv(self):
11916 """Build hooks env.
11920 "GROUP_NAME": self.op.group_name,
11923 def BuildHooksNodes(self):
11924 """Build hooks nodes.
11927 mn = self.cfg.GetMasterNode()
11928 return ([mn], [mn])
11930 def Exec(self, feedback_fn):
11931 """Add the node group to the cluster.
11934 group_obj = objects.NodeGroup(name=self.op.group_name, members=[],
11935 uuid=self.group_uuid,
11936 alloc_policy=self.op.alloc_policy,
11937 ndparams=self.op.ndparams)
11939 self.cfg.AddNodeGroup(group_obj, self.proc.GetECId(), check_uuid=False)
11940 del self.remove_locks[locking.LEVEL_NODEGROUP]
11943 class LUGroupAssignNodes(NoHooksLU):
11944 """Logical unit for assigning nodes to groups.
11949 def ExpandNames(self):
11950 # These raise errors.OpPrereqError on their own:
11951 self.group_uuid = self.cfg.LookupNodeGroup(self.op.group_name)
11952 self.op.nodes = _GetWantedNodes(self, self.op.nodes)
11954 # We want to lock all the affected nodes and groups. We have readily
11955 # available the list of nodes, and the *destination* group. To gather the
11956 # list of "source" groups, we need to fetch node information later on.
11957 self.needed_locks = {
11958 locking.LEVEL_NODEGROUP: set([self.group_uuid]),
11959 locking.LEVEL_NODE: self.op.nodes,
11962 def DeclareLocks(self, level):
11963 if level == locking.LEVEL_NODEGROUP:
11964 assert len(self.needed_locks[locking.LEVEL_NODEGROUP]) == 1
11966 # Try to get all affected nodes' groups without having the group or node
11967 # lock yet. Needs verification later in the code flow.
11968 groups = self.cfg.GetNodeGroupsFromNodes(self.op.nodes)
11970 self.needed_locks[locking.LEVEL_NODEGROUP].update(groups)
11972 def CheckPrereq(self):
11973 """Check prerequisites.
11976 assert self.needed_locks[locking.LEVEL_NODEGROUP]
11977 assert (frozenset(self.owned_locks(locking.LEVEL_NODE)) ==
11978 frozenset(self.op.nodes))
11980 expected_locks = (set([self.group_uuid]) |
11981 self.cfg.GetNodeGroupsFromNodes(self.op.nodes))
11982 actual_locks = self.owned_locks(locking.LEVEL_NODEGROUP)
11983 if actual_locks != expected_locks:
11984 raise errors.OpExecError("Nodes changed groups since locks were acquired,"
11985 " current groups are '%s', used to be '%s'" %
11986 (utils.CommaJoin(expected_locks),
11987 utils.CommaJoin(actual_locks)))
11989 self.node_data = self.cfg.GetAllNodesInfo()
11990 self.group = self.cfg.GetNodeGroup(self.group_uuid)
11991 instance_data = self.cfg.GetAllInstancesInfo()
11993 if self.group is None:
11994 raise errors.OpExecError("Could not retrieve group '%s' (UUID: %s)" %
11995 (self.op.group_name, self.group_uuid))
11997 (new_splits, previous_splits) = \
11998 self.CheckAssignmentForSplitInstances([(node, self.group_uuid)
11999 for node in self.op.nodes],
12000 self.node_data, instance_data)
12003 fmt_new_splits = utils.CommaJoin(utils.NiceSort(new_splits))
12005 if not self.op.force:
12006 raise errors.OpExecError("The following instances get split by this"
12007 " change and --force was not given: %s" %
12010 self.LogWarning("This operation will split the following instances: %s",
12013 if previous_splits:
12014 self.LogWarning("In addition, these already-split instances continue"
12015 " to be split across groups: %s",
12016 utils.CommaJoin(utils.NiceSort(previous_splits)))
12018 def Exec(self, feedback_fn):
12019 """Assign nodes to a new group.
12022 mods = [(node_name, self.group_uuid) for node_name in self.op.nodes]
12024 self.cfg.AssignGroupNodes(mods)
12027 def CheckAssignmentForSplitInstances(changes, node_data, instance_data):
12028 """Check for split instances after a node assignment.
12030 This method considers a series of node assignments as an atomic operation,
12031 and returns information about split instances after applying the set of
12034 In particular, it returns information about newly split instances, and
12035 instances that were already split, and remain so after the change.
12037 Only instances whose disk template is listed in constants.DTS_INT_MIRROR are
12040 @type changes: list of (node_name, new_group_uuid) pairs.
12041 @param changes: list of node assignments to consider.
12042 @param node_data: a dict with data for all nodes
12043 @param instance_data: a dict with all instances to consider
12044 @rtype: a two-tuple
12045 @return: a list of instances that were previously okay and result split as a
12046 consequence of this change, and a list of instances that were previously
12047 split and this change does not fix.
12050 changed_nodes = dict((node, group) for node, group in changes
12051 if node_data[node].group != group)
12053 all_split_instances = set()
12054 previously_split_instances = set()
12056 def InstanceNodes(instance):
12057 return [instance.primary_node] + list(instance.secondary_nodes)
12059 for inst in instance_data.values():
12060 if inst.disk_template not in constants.DTS_INT_MIRROR:
12063 instance_nodes = InstanceNodes(inst)
12065 if len(set(node_data[node].group for node in instance_nodes)) > 1:
12066 previously_split_instances.add(inst.name)
12068 if len(set(changed_nodes.get(node, node_data[node].group)
12069 for node in instance_nodes)) > 1:
12070 all_split_instances.add(inst.name)
12072 return (list(all_split_instances - previously_split_instances),
12073 list(previously_split_instances & all_split_instances))
12076 class _GroupQuery(_QueryBase):
12077 FIELDS = query.GROUP_FIELDS
12079 def ExpandNames(self, lu):
12080 lu.needed_locks = {}
12082 self._all_groups = lu.cfg.GetAllNodeGroupsInfo()
12083 name_to_uuid = dict((g.name, g.uuid) for g in self._all_groups.values())
12086 self.wanted = [name_to_uuid[name]
12087 for name in utils.NiceSort(name_to_uuid.keys())]
12089 # Accept names to be either names or UUIDs.
12092 all_uuid = frozenset(self._all_groups.keys())
12094 for name in self.names:
12095 if name in all_uuid:
12096 self.wanted.append(name)
12097 elif name in name_to_uuid:
12098 self.wanted.append(name_to_uuid[name])
12100 missing.append(name)
12103 raise errors.OpPrereqError("Some groups do not exist: %s" %
12104 utils.CommaJoin(missing),
12105 errors.ECODE_NOENT)
12107 def DeclareLocks(self, lu, level):
12110 def _GetQueryData(self, lu):
12111 """Computes the list of node groups and their attributes.
12114 do_nodes = query.GQ_NODE in self.requested_data
12115 do_instances = query.GQ_INST in self.requested_data
12117 group_to_nodes = None
12118 group_to_instances = None
12120 # For GQ_NODE, we need to map group->[nodes], and group->[instances] for
12121 # GQ_INST. The former is attainable with just GetAllNodesInfo(), but for the
12122 # latter GetAllInstancesInfo() is not enough, for we have to go through
12123 # instance->node. Hence, we will need to process nodes even if we only need
12124 # instance information.
12125 if do_nodes or do_instances:
12126 all_nodes = lu.cfg.GetAllNodesInfo()
12127 group_to_nodes = dict((uuid, []) for uuid in self.wanted)
12130 for node in all_nodes.values():
12131 if node.group in group_to_nodes:
12132 group_to_nodes[node.group].append(node.name)
12133 node_to_group[node.name] = node.group
12136 all_instances = lu.cfg.GetAllInstancesInfo()
12137 group_to_instances = dict((uuid, []) for uuid in self.wanted)
12139 for instance in all_instances.values():
12140 node = instance.primary_node
12141 if node in node_to_group:
12142 group_to_instances[node_to_group[node]].append(instance.name)
12145 # Do not pass on node information if it was not requested.
12146 group_to_nodes = None
12148 return query.GroupQueryData([self._all_groups[uuid]
12149 for uuid in self.wanted],
12150 group_to_nodes, group_to_instances)
12153 class LUGroupQuery(NoHooksLU):
12154 """Logical unit for querying node groups.
12159 def CheckArguments(self):
12160 self.gq = _GroupQuery(qlang.MakeSimpleFilter("name", self.op.names),
12161 self.op.output_fields, False)
12163 def ExpandNames(self):
12164 self.gq.ExpandNames(self)
12166 def DeclareLocks(self, level):
12167 self.gq.DeclareLocks(self, level)
12169 def Exec(self, feedback_fn):
12170 return self.gq.OldStyleQuery(self)
12173 class LUGroupSetParams(LogicalUnit):
12174 """Modifies the parameters of a node group.
12177 HPATH = "group-modify"
12178 HTYPE = constants.HTYPE_GROUP
12181 def CheckArguments(self):
12184 self.op.alloc_policy,
12187 if all_changes.count(None) == len(all_changes):
12188 raise errors.OpPrereqError("Please pass at least one modification",
12189 errors.ECODE_INVAL)
12191 def ExpandNames(self):
12192 # This raises errors.OpPrereqError on its own:
12193 self.group_uuid = self.cfg.LookupNodeGroup(self.op.group_name)
12195 self.needed_locks = {
12196 locking.LEVEL_NODEGROUP: [self.group_uuid],
12199 def CheckPrereq(self):
12200 """Check prerequisites.
12203 self.group = self.cfg.GetNodeGroup(self.group_uuid)
12205 if self.group is None:
12206 raise errors.OpExecError("Could not retrieve group '%s' (UUID: %s)" %
12207 (self.op.group_name, self.group_uuid))
12209 if self.op.ndparams:
12210 new_ndparams = _GetUpdatedParams(self.group.ndparams, self.op.ndparams)
12211 utils.ForceDictType(self.op.ndparams, constants.NDS_PARAMETER_TYPES)
12212 self.new_ndparams = new_ndparams
12214 def BuildHooksEnv(self):
12215 """Build hooks env.
12219 "GROUP_NAME": self.op.group_name,
12220 "NEW_ALLOC_POLICY": self.op.alloc_policy,
12223 def BuildHooksNodes(self):
12224 """Build hooks nodes.
12227 mn = self.cfg.GetMasterNode()
12228 return ([mn], [mn])
12230 def Exec(self, feedback_fn):
12231 """Modifies the node group.
12236 if self.op.ndparams:
12237 self.group.ndparams = self.new_ndparams
12238 result.append(("ndparams", str(self.group.ndparams)))
12240 if self.op.alloc_policy:
12241 self.group.alloc_policy = self.op.alloc_policy
12243 self.cfg.Update(self.group, feedback_fn)
12247 class LUGroupRemove(LogicalUnit):
12248 HPATH = "group-remove"
12249 HTYPE = constants.HTYPE_GROUP
12252 def ExpandNames(self):
12253 # This will raises errors.OpPrereqError on its own:
12254 self.group_uuid = self.cfg.LookupNodeGroup(self.op.group_name)
12255 self.needed_locks = {
12256 locking.LEVEL_NODEGROUP: [self.group_uuid],
12259 def CheckPrereq(self):
12260 """Check prerequisites.
12262 This checks that the given group name exists as a node group, that is
12263 empty (i.e., contains no nodes), and that is not the last group of the
12267 # Verify that the group is empty.
12268 group_nodes = [node.name
12269 for node in self.cfg.GetAllNodesInfo().values()
12270 if node.group == self.group_uuid]
12273 raise errors.OpPrereqError("Group '%s' not empty, has the following"
12275 (self.op.group_name,
12276 utils.CommaJoin(utils.NiceSort(group_nodes))),
12277 errors.ECODE_STATE)
12279 # Verify the cluster would not be left group-less.
12280 if len(self.cfg.GetNodeGroupList()) == 1:
12281 raise errors.OpPrereqError("Group '%s' is the only group,"
12282 " cannot be removed" %
12283 self.op.group_name,
12284 errors.ECODE_STATE)
12286 def BuildHooksEnv(self):
12287 """Build hooks env.
12291 "GROUP_NAME": self.op.group_name,
12294 def BuildHooksNodes(self):
12295 """Build hooks nodes.
12298 mn = self.cfg.GetMasterNode()
12299 return ([mn], [mn])
12301 def Exec(self, feedback_fn):
12302 """Remove the node group.
12306 self.cfg.RemoveNodeGroup(self.group_uuid)
12307 except errors.ConfigurationError:
12308 raise errors.OpExecError("Group '%s' with UUID %s disappeared" %
12309 (self.op.group_name, self.group_uuid))
12311 self.remove_locks[locking.LEVEL_NODEGROUP] = self.group_uuid
12314 class LUGroupRename(LogicalUnit):
12315 HPATH = "group-rename"
12316 HTYPE = constants.HTYPE_GROUP
12319 def ExpandNames(self):
12320 # This raises errors.OpPrereqError on its own:
12321 self.group_uuid = self.cfg.LookupNodeGroup(self.op.group_name)
12323 self.needed_locks = {
12324 locking.LEVEL_NODEGROUP: [self.group_uuid],
12327 def CheckPrereq(self):
12328 """Check prerequisites.
12330 Ensures requested new name is not yet used.
12334 new_name_uuid = self.cfg.LookupNodeGroup(self.op.new_name)
12335 except errors.OpPrereqError:
12338 raise errors.OpPrereqError("Desired new name '%s' clashes with existing"
12339 " node group (UUID: %s)" %
12340 (self.op.new_name, new_name_uuid),
12341 errors.ECODE_EXISTS)
12343 def BuildHooksEnv(self):
12344 """Build hooks env.
12348 "OLD_NAME": self.op.group_name,
12349 "NEW_NAME": self.op.new_name,
12352 def BuildHooksNodes(self):
12353 """Build hooks nodes.
12356 mn = self.cfg.GetMasterNode()
12358 all_nodes = self.cfg.GetAllNodesInfo()
12359 all_nodes.pop(mn, None)
12362 run_nodes.extend(node.name for node in all_nodes.values()
12363 if node.group == self.group_uuid)
12365 return (run_nodes, run_nodes)
12367 def Exec(self, feedback_fn):
12368 """Rename the node group.
12371 group = self.cfg.GetNodeGroup(self.group_uuid)
12374 raise errors.OpExecError("Could not retrieve group '%s' (UUID: %s)" %
12375 (self.op.group_name, self.group_uuid))
12377 group.name = self.op.new_name
12378 self.cfg.Update(group, feedback_fn)
12380 return self.op.new_name
12383 class LUGroupEvacuate(LogicalUnit):
12384 HPATH = "group-evacuate"
12385 HTYPE = constants.HTYPE_GROUP
12388 def ExpandNames(self):
12389 # This raises errors.OpPrereqError on its own:
12390 self.group_uuid = self.cfg.LookupNodeGroup(self.op.group_name)
12392 if self.op.target_groups:
12393 self.req_target_uuids = map(self.cfg.LookupNodeGroup,
12394 self.op.target_groups)
12396 self.req_target_uuids = []
12398 if self.group_uuid in self.req_target_uuids:
12399 raise errors.OpPrereqError("Group to be evacuated (%s) can not be used"
12400 " as a target group (targets are %s)" %
12402 utils.CommaJoin(self.req_target_uuids)),
12403 errors.ECODE_INVAL)
12405 self.op.iallocator = _GetDefaultIAllocator(self.cfg, self.op.iallocator)
12407 self.share_locks = _ShareAll()
12408 self.needed_locks = {
12409 locking.LEVEL_INSTANCE: [],
12410 locking.LEVEL_NODEGROUP: [],
12411 locking.LEVEL_NODE: [],
12414 def DeclareLocks(self, level):
12415 if level == locking.LEVEL_INSTANCE:
12416 assert not self.needed_locks[locking.LEVEL_INSTANCE]
12418 # Lock instances optimistically, needs verification once node and group
12419 # locks have been acquired
12420 self.needed_locks[locking.LEVEL_INSTANCE] = \
12421 self.cfg.GetNodeGroupInstances(self.group_uuid)
12423 elif level == locking.LEVEL_NODEGROUP:
12424 assert not self.needed_locks[locking.LEVEL_NODEGROUP]
12426 if self.req_target_uuids:
12427 lock_groups = set([self.group_uuid] + self.req_target_uuids)
12429 # Lock all groups used by instances optimistically; this requires going
12430 # via the node before it's locked, requiring verification later on
12431 lock_groups.update(group_uuid
12432 for instance_name in
12433 self.owned_locks(locking.LEVEL_INSTANCE)
12435 self.cfg.GetInstanceNodeGroups(instance_name))
12437 # No target groups, need to lock all of them
12438 lock_groups = locking.ALL_SET
12440 self.needed_locks[locking.LEVEL_NODEGROUP] = lock_groups
12442 elif level == locking.LEVEL_NODE:
12443 # This will only lock the nodes in the group to be evacuated which
12444 # contain actual instances
12445 self.recalculate_locks[locking.LEVEL_NODE] = constants.LOCKS_APPEND
12446 self._LockInstancesNodes()
12448 # Lock all nodes in group to be evacuated and target groups
12449 owned_groups = frozenset(self.owned_locks(locking.LEVEL_NODEGROUP))
12450 assert self.group_uuid in owned_groups
12451 member_nodes = [node_name
12452 for group in owned_groups
12453 for node_name in self.cfg.GetNodeGroup(group).members]
12454 self.needed_locks[locking.LEVEL_NODE].extend(member_nodes)
12456 def CheckPrereq(self):
12457 owned_instances = frozenset(self.owned_locks(locking.LEVEL_INSTANCE))
12458 owned_groups = frozenset(self.owned_locks(locking.LEVEL_NODEGROUP))
12459 owned_nodes = frozenset(self.owned_locks(locking.LEVEL_NODE))
12461 assert owned_groups.issuperset(self.req_target_uuids)
12462 assert self.group_uuid in owned_groups
12464 # Check if locked instances are still correct
12465 _CheckNodeGroupInstances(self.cfg, self.group_uuid, owned_instances)
12467 # Get instance information
12468 self.instances = dict(self.cfg.GetMultiInstanceInfo(owned_instances))
12470 # Check if node groups for locked instances are still correct
12471 for instance_name in owned_instances:
12472 inst = self.instances[instance_name]
12473 assert owned_nodes.issuperset(inst.all_nodes), \
12474 "Instance %s's nodes changed while we kept the lock" % instance_name
12476 inst_groups = _CheckInstanceNodeGroups(self.cfg, instance_name,
12479 assert self.group_uuid in inst_groups, \
12480 "Instance %s has no node in group %s" % (instance_name, self.group_uuid)
12482 if self.req_target_uuids:
12483 # User requested specific target groups
12484 self.target_uuids = self.req_target_uuids
12486 # All groups except the one to be evacuated are potential targets
12487 self.target_uuids = [group_uuid for group_uuid in owned_groups
12488 if group_uuid != self.group_uuid]
12490 if not self.target_uuids:
12491 raise errors.OpPrereqError("There are no possible target groups",
12492 errors.ECODE_INVAL)
12494 def BuildHooksEnv(self):
12495 """Build hooks env.
12499 "GROUP_NAME": self.op.group_name,
12500 "TARGET_GROUPS": " ".join(self.target_uuids),
12503 def BuildHooksNodes(self):
12504 """Build hooks nodes.
12507 mn = self.cfg.GetMasterNode()
12509 assert self.group_uuid in self.owned_locks(locking.LEVEL_NODEGROUP)
12511 run_nodes = [mn] + self.cfg.GetNodeGroup(self.group_uuid).members
12513 return (run_nodes, run_nodes)
12515 def Exec(self, feedback_fn):
12516 instances = list(self.owned_locks(locking.LEVEL_INSTANCE))
12518 assert self.group_uuid not in self.target_uuids
12520 ial = IAllocator(self.cfg, self.rpc, constants.IALLOCATOR_MODE_CHG_GROUP,
12521 instances=instances, target_groups=self.target_uuids)
12523 ial.Run(self.op.iallocator)
12525 if not ial.success:
12526 raise errors.OpPrereqError("Can't compute group evacuation using"
12527 " iallocator '%s': %s" %
12528 (self.op.iallocator, ial.info),
12529 errors.ECODE_NORES)
12531 jobs = _LoadNodeEvacResult(self, ial.result, self.op.early_release, False)
12533 self.LogInfo("Iallocator returned %s job(s) for evacuating node group %s",
12534 len(jobs), self.op.group_name)
12536 return ResultWithJobs(jobs)
12539 class TagsLU(NoHooksLU): # pylint: disable=W0223
12540 """Generic tags LU.
12542 This is an abstract class which is the parent of all the other tags LUs.
12545 def ExpandNames(self):
12546 self.group_uuid = None
12547 self.needed_locks = {}
12548 if self.op.kind == constants.TAG_NODE:
12549 self.op.name = _ExpandNodeName(self.cfg, self.op.name)
12550 self.needed_locks[locking.LEVEL_NODE] = self.op.name
12551 elif self.op.kind == constants.TAG_INSTANCE:
12552 self.op.name = _ExpandInstanceName(self.cfg, self.op.name)
12553 self.needed_locks[locking.LEVEL_INSTANCE] = self.op.name
12554 elif self.op.kind == constants.TAG_NODEGROUP:
12555 self.group_uuid = self.cfg.LookupNodeGroup(self.op.name)
12557 # FIXME: Acquire BGL for cluster tag operations (as of this writing it's
12558 # not possible to acquire the BGL based on opcode parameters)
12560 def CheckPrereq(self):
12561 """Check prerequisites.
12564 if self.op.kind == constants.TAG_CLUSTER:
12565 self.target = self.cfg.GetClusterInfo()
12566 elif self.op.kind == constants.TAG_NODE:
12567 self.target = self.cfg.GetNodeInfo(self.op.name)
12568 elif self.op.kind == constants.TAG_INSTANCE:
12569 self.target = self.cfg.GetInstanceInfo(self.op.name)
12570 elif self.op.kind == constants.TAG_NODEGROUP:
12571 self.target = self.cfg.GetNodeGroup(self.group_uuid)
12573 raise errors.OpPrereqError("Wrong tag type requested (%s)" %
12574 str(self.op.kind), errors.ECODE_INVAL)
12577 class LUTagsGet(TagsLU):
12578 """Returns the tags of a given object.
12583 def ExpandNames(self):
12584 TagsLU.ExpandNames(self)
12586 # Share locks as this is only a read operation
12587 self.share_locks = _ShareAll()
12589 def Exec(self, feedback_fn):
12590 """Returns the tag list.
12593 return list(self.target.GetTags())
12596 class LUTagsSearch(NoHooksLU):
12597 """Searches the tags for a given pattern.
12602 def ExpandNames(self):
12603 self.needed_locks = {}
12605 def CheckPrereq(self):
12606 """Check prerequisites.
12608 This checks the pattern passed for validity by compiling it.
12612 self.re = re.compile(self.op.pattern)
12613 except re.error, err:
12614 raise errors.OpPrereqError("Invalid search pattern '%s': %s" %
12615 (self.op.pattern, err), errors.ECODE_INVAL)
12617 def Exec(self, feedback_fn):
12618 """Returns the tag list.
12622 tgts = [("/cluster", cfg.GetClusterInfo())]
12623 ilist = cfg.GetAllInstancesInfo().values()
12624 tgts.extend([("/instances/%s" % i.name, i) for i in ilist])
12625 nlist = cfg.GetAllNodesInfo().values()
12626 tgts.extend([("/nodes/%s" % n.name, n) for n in nlist])
12627 tgts.extend(("/nodegroup/%s" % n.name, n)
12628 for n in cfg.GetAllNodeGroupsInfo().values())
12630 for path, target in tgts:
12631 for tag in target.GetTags():
12632 if self.re.search(tag):
12633 results.append((path, tag))
12637 class LUTagsSet(TagsLU):
12638 """Sets a tag on a given object.
12643 def CheckPrereq(self):
12644 """Check prerequisites.
12646 This checks the type and length of the tag name and value.
12649 TagsLU.CheckPrereq(self)
12650 for tag in self.op.tags:
12651 objects.TaggableObject.ValidateTag(tag)
12653 def Exec(self, feedback_fn):
12658 for tag in self.op.tags:
12659 self.target.AddTag(tag)
12660 except errors.TagError, err:
12661 raise errors.OpExecError("Error while setting tag: %s" % str(err))
12662 self.cfg.Update(self.target, feedback_fn)
12665 class LUTagsDel(TagsLU):
12666 """Delete a list of tags from a given object.
12671 def CheckPrereq(self):
12672 """Check prerequisites.
12674 This checks that we have the given tag.
12677 TagsLU.CheckPrereq(self)
12678 for tag in self.op.tags:
12679 objects.TaggableObject.ValidateTag(tag)
12680 del_tags = frozenset(self.op.tags)
12681 cur_tags = self.target.GetTags()
12683 diff_tags = del_tags - cur_tags
12685 diff_names = ("'%s'" % i for i in sorted(diff_tags))
12686 raise errors.OpPrereqError("Tag(s) %s not found" %
12687 (utils.CommaJoin(diff_names), ),
12688 errors.ECODE_NOENT)
12690 def Exec(self, feedback_fn):
12691 """Remove the tag from the object.
12694 for tag in self.op.tags:
12695 self.target.RemoveTag(tag)
12696 self.cfg.Update(self.target, feedback_fn)
12699 class LUTestDelay(NoHooksLU):
12700 """Sleep for a specified amount of time.
12702 This LU sleeps on the master and/or nodes for a specified amount of
12708 def ExpandNames(self):
12709 """Expand names and set required locks.
12711 This expands the node list, if any.
12714 self.needed_locks = {}
12715 if self.op.on_nodes:
12716 # _GetWantedNodes can be used here, but is not always appropriate to use
12717 # this way in ExpandNames. Check LogicalUnit.ExpandNames docstring for
12718 # more information.
12719 self.op.on_nodes = _GetWantedNodes(self, self.op.on_nodes)
12720 self.needed_locks[locking.LEVEL_NODE] = self.op.on_nodes
12722 def _TestDelay(self):
12723 """Do the actual sleep.
12726 if self.op.on_master:
12727 if not utils.TestDelay(self.op.duration):
12728 raise errors.OpExecError("Error during master delay test")
12729 if self.op.on_nodes:
12730 result = self.rpc.call_test_delay(self.op.on_nodes, self.op.duration)
12731 for node, node_result in result.items():
12732 node_result.Raise("Failure during rpc call to node %s" % node)
12734 def Exec(self, feedback_fn):
12735 """Execute the test delay opcode, with the wanted repetitions.
12738 if self.op.repeat == 0:
12741 top_value = self.op.repeat - 1
12742 for i in range(self.op.repeat):
12743 self.LogInfo("Test delay iteration %d/%d" % (i, top_value))
12747 class LUTestJqueue(NoHooksLU):
12748 """Utility LU to test some aspects of the job queue.
12753 # Must be lower than default timeout for WaitForJobChange to see whether it
12754 # notices changed jobs
12755 _CLIENT_CONNECT_TIMEOUT = 20.0
12756 _CLIENT_CONFIRM_TIMEOUT = 60.0
12759 def _NotifyUsingSocket(cls, cb, errcls):
12760 """Opens a Unix socket and waits for another program to connect.
12763 @param cb: Callback to send socket name to client
12764 @type errcls: class
12765 @param errcls: Exception class to use for errors
12768 # Using a temporary directory as there's no easy way to create temporary
12769 # sockets without writing a custom loop around tempfile.mktemp and
12771 tmpdir = tempfile.mkdtemp()
12773 tmpsock = utils.PathJoin(tmpdir, "sock")
12775 logging.debug("Creating temporary socket at %s", tmpsock)
12776 sock = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
12781 # Send details to client
12784 # Wait for client to connect before continuing
12785 sock.settimeout(cls._CLIENT_CONNECT_TIMEOUT)
12787 (conn, _) = sock.accept()
12788 except socket.error, err:
12789 raise errcls("Client didn't connect in time (%s)" % err)
12793 # Remove as soon as client is connected
12794 shutil.rmtree(tmpdir)
12796 # Wait for client to close
12799 # pylint: disable=E1101
12800 # Instance of '_socketobject' has no ... member
12801 conn.settimeout(cls._CLIENT_CONFIRM_TIMEOUT)
12803 except socket.error, err:
12804 raise errcls("Client failed to confirm notification (%s)" % err)
12808 def _SendNotification(self, test, arg, sockname):
12809 """Sends a notification to the client.
12812 @param test: Test name
12813 @param arg: Test argument (depends on test)
12814 @type sockname: string
12815 @param sockname: Socket path
12818 self.Log(constants.ELOG_JQUEUE_TEST, (sockname, test, arg))
12820 def _Notify(self, prereq, test, arg):
12821 """Notifies the client of a test.
12824 @param prereq: Whether this is a prereq-phase test
12826 @param test: Test name
12827 @param arg: Test argument (depends on test)
12831 errcls = errors.OpPrereqError
12833 errcls = errors.OpExecError
12835 return self._NotifyUsingSocket(compat.partial(self._SendNotification,
12839 def CheckArguments(self):
12840 self.checkargs_calls = getattr(self, "checkargs_calls", 0) + 1
12841 self.expandnames_calls = 0
12843 def ExpandNames(self):
12844 checkargs_calls = getattr(self, "checkargs_calls", 0)
12845 if checkargs_calls < 1:
12846 raise errors.ProgrammerError("CheckArguments was not called")
12848 self.expandnames_calls += 1
12850 if self.op.notify_waitlock:
12851 self._Notify(True, constants.JQT_EXPANDNAMES, None)
12853 self.LogInfo("Expanding names")
12855 # Get lock on master node (just to get a lock, not for a particular reason)
12856 self.needed_locks = {
12857 locking.LEVEL_NODE: self.cfg.GetMasterNode(),
12860 def Exec(self, feedback_fn):
12861 if self.expandnames_calls < 1:
12862 raise errors.ProgrammerError("ExpandNames was not called")
12864 if self.op.notify_exec:
12865 self._Notify(False, constants.JQT_EXEC, None)
12867 self.LogInfo("Executing")
12869 if self.op.log_messages:
12870 self._Notify(False, constants.JQT_STARTMSG, len(self.op.log_messages))
12871 for idx, msg in enumerate(self.op.log_messages):
12872 self.LogInfo("Sending log message %s", idx + 1)
12873 feedback_fn(constants.JQT_MSGPREFIX + msg)
12874 # Report how many test messages have been sent
12875 self._Notify(False, constants.JQT_LOGMSG, idx + 1)
12878 raise errors.OpExecError("Opcode failure was requested")
12883 class IAllocator(object):
12884 """IAllocator framework.
12886 An IAllocator instance has three sets of attributes:
12887 - cfg that is needed to query the cluster
12888 - input data (all members of the _KEYS class attribute are required)
12889 - four buffer attributes (in|out_data|text), that represent the
12890 input (to the external script) in text and data structure format,
12891 and the output from it, again in two formats
12892 - the result variables from the script (success, info, nodes) for
12896 # pylint: disable=R0902
12897 # lots of instance attributes
12899 def __init__(self, cfg, rpc, mode, **kwargs):
12902 # init buffer variables
12903 self.in_text = self.out_text = self.in_data = self.out_data = None
12904 # init all input fields so that pylint is happy
12906 self.memory = self.disks = self.disk_template = None
12907 self.os = self.tags = self.nics = self.vcpus = None
12908 self.hypervisor = None
12909 self.relocate_from = None
12911 self.instances = None
12912 self.evac_mode = None
12913 self.target_groups = []
12915 self.required_nodes = None
12916 # init result fields
12917 self.success = self.info = self.result = None
12920 (fn, keydata, self._result_check) = self._MODE_DATA[self.mode]
12922 raise errors.ProgrammerError("Unknown mode '%s' passed to the"
12923 " IAllocator" % self.mode)
12925 keyset = [n for (n, _) in keydata]
12928 if key not in keyset:
12929 raise errors.ProgrammerError("Invalid input parameter '%s' to"
12930 " IAllocator" % key)
12931 setattr(self, key, kwargs[key])
12934 if key not in kwargs:
12935 raise errors.ProgrammerError("Missing input parameter '%s' to"
12936 " IAllocator" % key)
12937 self._BuildInputData(compat.partial(fn, self), keydata)
12939 def _ComputeClusterData(self):
12940 """Compute the generic allocator input data.
12942 This is the data that is independent of the actual operation.
12946 cluster_info = cfg.GetClusterInfo()
12949 "version": constants.IALLOCATOR_VERSION,
12950 "cluster_name": cfg.GetClusterName(),
12951 "cluster_tags": list(cluster_info.GetTags()),
12952 "enabled_hypervisors": list(cluster_info.enabled_hypervisors),
12953 # we don't have job IDs
12955 ninfo = cfg.GetAllNodesInfo()
12956 iinfo = cfg.GetAllInstancesInfo().values()
12957 i_list = [(inst, cluster_info.FillBE(inst)) for inst in iinfo]
12960 node_list = [n.name for n in ninfo.values() if n.vm_capable]
12962 if self.mode == constants.IALLOCATOR_MODE_ALLOC:
12963 hypervisor_name = self.hypervisor
12964 elif self.mode == constants.IALLOCATOR_MODE_RELOC:
12965 hypervisor_name = cfg.GetInstanceInfo(self.name).hypervisor
12967 hypervisor_name = cluster_info.enabled_hypervisors[0]
12969 node_data = self.rpc.call_node_info(node_list, cfg.GetVGName(),
12972 self.rpc.call_all_instances_info(node_list,
12973 cluster_info.enabled_hypervisors)
12975 data["nodegroups"] = self._ComputeNodeGroupData(cfg)
12977 config_ndata = self._ComputeBasicNodeData(ninfo)
12978 data["nodes"] = self._ComputeDynamicNodeData(ninfo, node_data, node_iinfo,
12979 i_list, config_ndata)
12980 assert len(data["nodes"]) == len(ninfo), \
12981 "Incomplete node data computed"
12983 data["instances"] = self._ComputeInstanceData(cluster_info, i_list)
12985 self.in_data = data
12988 def _ComputeNodeGroupData(cfg):
12989 """Compute node groups data.
12992 ng = dict((guuid, {
12993 "name": gdata.name,
12994 "alloc_policy": gdata.alloc_policy,
12996 for guuid, gdata in cfg.GetAllNodeGroupsInfo().items())
13001 def _ComputeBasicNodeData(node_cfg):
13002 """Compute global node data.
13005 @returns: a dict of name: (node dict, node config)
13008 # fill in static (config-based) values
13009 node_results = dict((ninfo.name, {
13010 "tags": list(ninfo.GetTags()),
13011 "primary_ip": ninfo.primary_ip,
13012 "secondary_ip": ninfo.secondary_ip,
13013 "offline": ninfo.offline,
13014 "drained": ninfo.drained,
13015 "master_candidate": ninfo.master_candidate,
13016 "group": ninfo.group,
13017 "master_capable": ninfo.master_capable,
13018 "vm_capable": ninfo.vm_capable,
13020 for ninfo in node_cfg.values())
13022 return node_results
13025 def _ComputeDynamicNodeData(node_cfg, node_data, node_iinfo, i_list,
13027 """Compute global node data.
13029 @param node_results: the basic node structures as filled from the config
13032 # make a copy of the current dict
13033 node_results = dict(node_results)
13034 for nname, nresult in node_data.items():
13035 assert nname in node_results, "Missing basic data for node %s" % nname
13036 ninfo = node_cfg[nname]
13038 if not (ninfo.offline or ninfo.drained):
13039 nresult.Raise("Can't get data for node %s" % nname)
13040 node_iinfo[nname].Raise("Can't get node instance info from node %s" %
13042 remote_info = nresult.payload
13044 for attr in ["memory_total", "memory_free", "memory_dom0",
13045 "vg_size", "vg_free", "cpu_total"]:
13046 if attr not in remote_info:
13047 raise errors.OpExecError("Node '%s' didn't return attribute"
13048 " '%s'" % (nname, attr))
13049 if not isinstance(remote_info[attr], int):
13050 raise errors.OpExecError("Node '%s' returned invalid value"
13052 (nname, attr, remote_info[attr]))
13053 # compute memory used by primary instances
13054 i_p_mem = i_p_up_mem = 0
13055 for iinfo, beinfo in i_list:
13056 if iinfo.primary_node == nname:
13057 i_p_mem += beinfo[constants.BE_MEMORY]
13058 if iinfo.name not in node_iinfo[nname].payload:
13061 i_used_mem = int(node_iinfo[nname].payload[iinfo.name]["memory"])
13062 i_mem_diff = beinfo[constants.BE_MEMORY] - i_used_mem
13063 remote_info["memory_free"] -= max(0, i_mem_diff)
13066 i_p_up_mem += beinfo[constants.BE_MEMORY]
13068 # compute memory used by instances
13070 "total_memory": remote_info["memory_total"],
13071 "reserved_memory": remote_info["memory_dom0"],
13072 "free_memory": remote_info["memory_free"],
13073 "total_disk": remote_info["vg_size"],
13074 "free_disk": remote_info["vg_free"],
13075 "total_cpus": remote_info["cpu_total"],
13076 "i_pri_memory": i_p_mem,
13077 "i_pri_up_memory": i_p_up_mem,
13079 pnr_dyn.update(node_results[nname])
13080 node_results[nname] = pnr_dyn
13082 return node_results
13085 def _ComputeInstanceData(cluster_info, i_list):
13086 """Compute global instance data.
13090 for iinfo, beinfo in i_list:
13092 for nic in iinfo.nics:
13093 filled_params = cluster_info.SimpleFillNIC(nic.nicparams)
13097 "mode": filled_params[constants.NIC_MODE],
13098 "link": filled_params[constants.NIC_LINK],
13100 if filled_params[constants.NIC_MODE] == constants.NIC_MODE_BRIDGED:
13101 nic_dict["bridge"] = filled_params[constants.NIC_LINK]
13102 nic_data.append(nic_dict)
13104 "tags": list(iinfo.GetTags()),
13105 "admin_up": iinfo.admin_up,
13106 "vcpus": beinfo[constants.BE_VCPUS],
13107 "memory": beinfo[constants.BE_MEMORY],
13109 "nodes": [iinfo.primary_node] + list(iinfo.secondary_nodes),
13111 "disks": [{constants.IDISK_SIZE: dsk.size,
13112 constants.IDISK_MODE: dsk.mode}
13113 for dsk in iinfo.disks],
13114 "disk_template": iinfo.disk_template,
13115 "hypervisor": iinfo.hypervisor,
13117 pir["disk_space_total"] = _ComputeDiskSize(iinfo.disk_template,
13119 instance_data[iinfo.name] = pir
13121 return instance_data
13123 def _AddNewInstance(self):
13124 """Add new instance data to allocator structure.
13126 This in combination with _AllocatorGetClusterData will create the
13127 correct structure needed as input for the allocator.
13129 The checks for the completeness of the opcode must have already been
13133 disk_space = _ComputeDiskSize(self.disk_template, self.disks)
13135 if self.disk_template in constants.DTS_INT_MIRROR:
13136 self.required_nodes = 2
13138 self.required_nodes = 1
13142 "disk_template": self.disk_template,
13145 "vcpus": self.vcpus,
13146 "memory": self.memory,
13147 "disks": self.disks,
13148 "disk_space_total": disk_space,
13150 "required_nodes": self.required_nodes,
13151 "hypervisor": self.hypervisor,
13156 def _AddRelocateInstance(self):
13157 """Add relocate instance data to allocator structure.
13159 This in combination with _IAllocatorGetClusterData will create the
13160 correct structure needed as input for the allocator.
13162 The checks for the completeness of the opcode must have already been
13166 instance = self.cfg.GetInstanceInfo(self.name)
13167 if instance is None:
13168 raise errors.ProgrammerError("Unknown instance '%s' passed to"
13169 " IAllocator" % self.name)
13171 if instance.disk_template not in constants.DTS_MIRRORED:
13172 raise errors.OpPrereqError("Can't relocate non-mirrored instances",
13173 errors.ECODE_INVAL)
13175 if instance.disk_template in constants.DTS_INT_MIRROR and \
13176 len(instance.secondary_nodes) != 1:
13177 raise errors.OpPrereqError("Instance has not exactly one secondary node",
13178 errors.ECODE_STATE)
13180 self.required_nodes = 1
13181 disk_sizes = [{constants.IDISK_SIZE: disk.size} for disk in instance.disks]
13182 disk_space = _ComputeDiskSize(instance.disk_template, disk_sizes)
13186 "disk_space_total": disk_space,
13187 "required_nodes": self.required_nodes,
13188 "relocate_from": self.relocate_from,
13192 def _AddNodeEvacuate(self):
13193 """Get data for node-evacuate requests.
13197 "instances": self.instances,
13198 "evac_mode": self.evac_mode,
13201 def _AddChangeGroup(self):
13202 """Get data for node-evacuate requests.
13206 "instances": self.instances,
13207 "target_groups": self.target_groups,
13210 def _BuildInputData(self, fn, keydata):
13211 """Build input data structures.
13214 self._ComputeClusterData()
13217 request["type"] = self.mode
13218 for keyname, keytype in keydata:
13219 if keyname not in request:
13220 raise errors.ProgrammerError("Request parameter %s is missing" %
13222 val = request[keyname]
13223 if not keytype(val):
13224 raise errors.ProgrammerError("Request parameter %s doesn't pass"
13225 " validation, value %s, expected"
13226 " type %s" % (keyname, val, keytype))
13227 self.in_data["request"] = request
13229 self.in_text = serializer.Dump(self.in_data)
13231 _STRING_LIST = ht.TListOf(ht.TString)
13232 _JOB_LIST = ht.TListOf(ht.TListOf(ht.TStrictDict(True, False, {
13233 # pylint: disable=E1101
13234 # Class '...' has no 'OP_ID' member
13235 "OP_ID": ht.TElemOf([opcodes.OpInstanceFailover.OP_ID,
13236 opcodes.OpInstanceMigrate.OP_ID,
13237 opcodes.OpInstanceReplaceDisks.OP_ID])
13241 ht.TListOf(ht.TAnd(ht.TIsLength(3),
13242 ht.TItems([ht.TNonEmptyString,
13243 ht.TNonEmptyString,
13244 ht.TListOf(ht.TNonEmptyString),
13247 ht.TListOf(ht.TAnd(ht.TIsLength(2),
13248 ht.TItems([ht.TNonEmptyString,
13251 _NEVAC_RESULT = ht.TAnd(ht.TIsLength(3),
13252 ht.TItems([_NEVAC_MOVED, _NEVAC_FAILED, _JOB_LIST]))
13255 constants.IALLOCATOR_MODE_ALLOC:
13258 ("name", ht.TString),
13259 ("memory", ht.TInt),
13260 ("disks", ht.TListOf(ht.TDict)),
13261 ("disk_template", ht.TString),
13262 ("os", ht.TString),
13263 ("tags", _STRING_LIST),
13264 ("nics", ht.TListOf(ht.TDict)),
13265 ("vcpus", ht.TInt),
13266 ("hypervisor", ht.TString),
13268 constants.IALLOCATOR_MODE_RELOC:
13269 (_AddRelocateInstance,
13270 [("name", ht.TString), ("relocate_from", _STRING_LIST)],
13272 constants.IALLOCATOR_MODE_NODE_EVAC:
13273 (_AddNodeEvacuate, [
13274 ("instances", _STRING_LIST),
13275 ("evac_mode", ht.TElemOf(constants.IALLOCATOR_NEVAC_MODES)),
13277 constants.IALLOCATOR_MODE_CHG_GROUP:
13278 (_AddChangeGroup, [
13279 ("instances", _STRING_LIST),
13280 ("target_groups", _STRING_LIST),
13284 def Run(self, name, validate=True, call_fn=None):
13285 """Run an instance allocator and return the results.
13288 if call_fn is None:
13289 call_fn = self.rpc.call_iallocator_runner
13291 result = call_fn(self.cfg.GetMasterNode(), name, self.in_text)
13292 result.Raise("Failure while running the iallocator script")
13294 self.out_text = result.payload
13296 self._ValidateResult()
13298 def _ValidateResult(self):
13299 """Process the allocator results.
13301 This will process and if successful save the result in
13302 self.out_data and the other parameters.
13306 rdict = serializer.Load(self.out_text)
13307 except Exception, err:
13308 raise errors.OpExecError("Can't parse iallocator results: %s" % str(err))
13310 if not isinstance(rdict, dict):
13311 raise errors.OpExecError("Can't parse iallocator results: not a dict")
13313 # TODO: remove backwards compatiblity in later versions
13314 if "nodes" in rdict and "result" not in rdict:
13315 rdict["result"] = rdict["nodes"]
13318 for key in "success", "info", "result":
13319 if key not in rdict:
13320 raise errors.OpExecError("Can't parse iallocator results:"
13321 " missing key '%s'" % key)
13322 setattr(self, key, rdict[key])
13324 if not self._result_check(self.result):
13325 raise errors.OpExecError("Iallocator returned invalid result,"
13326 " expected %s, got %s" %
13327 (self._result_check, self.result),
13328 errors.ECODE_INVAL)
13330 if self.mode == constants.IALLOCATOR_MODE_RELOC:
13331 assert self.relocate_from is not None
13332 assert self.required_nodes == 1
13334 node2group = dict((name, ndata["group"])
13335 for (name, ndata) in self.in_data["nodes"].items())
13337 fn = compat.partial(self._NodesToGroups, node2group,
13338 self.in_data["nodegroups"])
13340 instance = self.cfg.GetInstanceInfo(self.name)
13341 request_groups = fn(self.relocate_from + [instance.primary_node])
13342 result_groups = fn(rdict["result"] + [instance.primary_node])
13344 if self.success and not set(result_groups).issubset(request_groups):
13345 raise errors.OpExecError("Groups of nodes returned by iallocator (%s)"
13346 " differ from original groups (%s)" %
13347 (utils.CommaJoin(result_groups),
13348 utils.CommaJoin(request_groups)))
13350 elif self.mode == constants.IALLOCATOR_MODE_NODE_EVAC:
13351 assert self.evac_mode in constants.IALLOCATOR_NEVAC_MODES
13353 self.out_data = rdict
13356 def _NodesToGroups(node2group, groups, nodes):
13357 """Returns a list of unique group names for a list of nodes.
13359 @type node2group: dict
13360 @param node2group: Map from node name to group UUID
13362 @param groups: Group information
13364 @param nodes: Node names
13371 group_uuid = node2group[node]
13373 # Ignore unknown node
13377 group = groups[group_uuid]
13379 # Can't find group, let's use UUID
13380 group_name = group_uuid
13382 group_name = group["name"]
13384 result.add(group_name)
13386 return sorted(result)
13389 class LUTestAllocator(NoHooksLU):
13390 """Run allocator tests.
13392 This LU runs the allocator tests
13395 def CheckPrereq(self):
13396 """Check prerequisites.
13398 This checks the opcode parameters depending on the director and mode test.
13401 if self.op.mode == constants.IALLOCATOR_MODE_ALLOC:
13402 for attr in ["memory", "disks", "disk_template",
13403 "os", "tags", "nics", "vcpus"]:
13404 if not hasattr(self.op, attr):
13405 raise errors.OpPrereqError("Missing attribute '%s' on opcode input" %
13406 attr, errors.ECODE_INVAL)
13407 iname = self.cfg.ExpandInstanceName(self.op.name)
13408 if iname is not None:
13409 raise errors.OpPrereqError("Instance '%s' already in the cluster" %
13410 iname, errors.ECODE_EXISTS)
13411 if not isinstance(self.op.nics, list):
13412 raise errors.OpPrereqError("Invalid parameter 'nics'",
13413 errors.ECODE_INVAL)
13414 if not isinstance(self.op.disks, list):
13415 raise errors.OpPrereqError("Invalid parameter 'disks'",
13416 errors.ECODE_INVAL)
13417 for row in self.op.disks:
13418 if (not isinstance(row, dict) or
13419 constants.IDISK_SIZE not in row or
13420 not isinstance(row[constants.IDISK_SIZE], int) or
13421 constants.IDISK_MODE not in row or
13422 row[constants.IDISK_MODE] not in constants.DISK_ACCESS_SET):
13423 raise errors.OpPrereqError("Invalid contents of the 'disks'"
13424 " parameter", errors.ECODE_INVAL)
13425 if self.op.hypervisor is None:
13426 self.op.hypervisor = self.cfg.GetHypervisorType()
13427 elif self.op.mode == constants.IALLOCATOR_MODE_RELOC:
13428 fname = _ExpandInstanceName(self.cfg, self.op.name)
13429 self.op.name = fname
13430 self.relocate_from = \
13431 list(self.cfg.GetInstanceInfo(fname).secondary_nodes)
13432 elif self.op.mode in (constants.IALLOCATOR_MODE_CHG_GROUP,
13433 constants.IALLOCATOR_MODE_NODE_EVAC):
13434 if not self.op.instances:
13435 raise errors.OpPrereqError("Missing instances", errors.ECODE_INVAL)
13436 self.op.instances = _GetWantedInstances(self, self.op.instances)
13438 raise errors.OpPrereqError("Invalid test allocator mode '%s'" %
13439 self.op.mode, errors.ECODE_INVAL)
13441 if self.op.direction == constants.IALLOCATOR_DIR_OUT:
13442 if self.op.allocator is None:
13443 raise errors.OpPrereqError("Missing allocator name",
13444 errors.ECODE_INVAL)
13445 elif self.op.direction != constants.IALLOCATOR_DIR_IN:
13446 raise errors.OpPrereqError("Wrong allocator test '%s'" %
13447 self.op.direction, errors.ECODE_INVAL)
13449 def Exec(self, feedback_fn):
13450 """Run the allocator test.
13453 if self.op.mode == constants.IALLOCATOR_MODE_ALLOC:
13454 ial = IAllocator(self.cfg, self.rpc,
13457 memory=self.op.memory,
13458 disks=self.op.disks,
13459 disk_template=self.op.disk_template,
13463 vcpus=self.op.vcpus,
13464 hypervisor=self.op.hypervisor,
13466 elif self.op.mode == constants.IALLOCATOR_MODE_RELOC:
13467 ial = IAllocator(self.cfg, self.rpc,
13470 relocate_from=list(self.relocate_from),
13472 elif self.op.mode == constants.IALLOCATOR_MODE_CHG_GROUP:
13473 ial = IAllocator(self.cfg, self.rpc,
13475 instances=self.op.instances,
13476 target_groups=self.op.target_groups)
13477 elif self.op.mode == constants.IALLOCATOR_MODE_NODE_EVAC:
13478 ial = IAllocator(self.cfg, self.rpc,
13480 instances=self.op.instances,
13481 evac_mode=self.op.evac_mode)
13483 raise errors.ProgrammerError("Uncatched mode %s in"
13484 " LUTestAllocator.Exec", self.op.mode)
13486 if self.op.direction == constants.IALLOCATOR_DIR_IN:
13487 result = ial.in_text
13489 ial.Run(self.op.allocator, validate=False)
13490 result = ial.out_text
13494 #: Query type implementations
13496 constants.QR_INSTANCE: _InstanceQuery,
13497 constants.QR_NODE: _NodeQuery,
13498 constants.QR_GROUP: _GroupQuery,
13499 constants.QR_OS: _OsQuery,
13502 assert set(_QUERY_IMPL.keys()) == constants.QR_VIA_OP
13505 def _GetQueryImplementation(name):
13506 """Returns the implemtnation for a query type.
13508 @param name: Query type, must be one of L{constants.QR_VIA_OP}
13512 return _QUERY_IMPL[name]
13514 raise errors.OpPrereqError("Unknown query resource '%s'" % name,
13515 errors.ECODE_INVAL)