4 # Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011 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-msg=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-msg=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-msg=C0103
135 self.LogWarning = processor.LogWarning # pylint: disable-msg=C0103
136 self.LogInfo = processor.LogInfo # pylint: disable-msg=C0103
137 self.LogStep = processor.LogStep # pylint: disable-msg=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-msg=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-msg=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-msg=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-msg=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-msg=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-msg=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-msg=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-msg=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-msg=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 # Information can be safely retrieved as the BGL is acquired in exclusive
1577 assert locking.BGL in self.owned_locks(locking.LEVEL_CLUSTER)
1578 self.all_group_info = self.cfg.GetAllNodeGroupsInfo()
1579 self.all_node_info = self.cfg.GetAllNodesInfo()
1580 self.all_inst_info = self.cfg.GetAllInstancesInfo()
1581 self.needed_locks = {}
1583 def Exec(self, feedback_fn):
1584 """Verify integrity of cluster, performing various test on nodes.
1588 self._feedback_fn = feedback_fn
1590 feedback_fn("* Verifying cluster config")
1592 for msg in self.cfg.VerifyConfig():
1593 self._ErrorIf(True, self.ECLUSTERCFG, None, msg)
1595 feedback_fn("* Verifying cluster certificate files")
1597 for cert_filename in constants.ALL_CERT_FILES:
1598 (errcode, msg) = _VerifyCertificate(cert_filename)
1599 self._ErrorIf(errcode, self.ECLUSTERCERT, None, msg, code=errcode)
1601 feedback_fn("* Verifying hypervisor parameters")
1603 self._VerifyHVP(_GetAllHypervisorParameters(self.cfg.GetClusterInfo(),
1604 self.all_inst_info.values()))
1606 feedback_fn("* Verifying all nodes belong to an existing group")
1608 # We do this verification here because, should this bogus circumstance
1609 # occur, it would never be caught by VerifyGroup, which only acts on
1610 # nodes/instances reachable from existing node groups.
1612 dangling_nodes = set(node.name for node in self.all_node_info.values()
1613 if node.group not in self.all_group_info)
1615 dangling_instances = {}
1616 no_node_instances = []
1618 for inst in self.all_inst_info.values():
1619 if inst.primary_node in dangling_nodes:
1620 dangling_instances.setdefault(inst.primary_node, []).append(inst.name)
1621 elif inst.primary_node not in self.all_node_info:
1622 no_node_instances.append(inst.name)
1627 utils.CommaJoin(dangling_instances.get(node.name,
1629 for node in dangling_nodes]
1631 self._ErrorIf(bool(dangling_nodes), self.ECLUSTERDANGLINGNODES, None,
1632 "the following nodes (and their instances) belong to a non"
1633 " existing group: %s", utils.CommaJoin(pretty_dangling))
1635 self._ErrorIf(bool(no_node_instances), self.ECLUSTERDANGLINGINST, None,
1636 "the following instances have a non-existing primary-node:"
1637 " %s", utils.CommaJoin(no_node_instances))
1642 class LUClusterVerifyGroup(LogicalUnit, _VerifyErrors):
1643 """Verifies the status of a node group.
1646 HPATH = "cluster-verify"
1647 HTYPE = constants.HTYPE_CLUSTER
1650 _HOOKS_INDENT_RE = re.compile("^", re.M)
1652 class NodeImage(object):
1653 """A class representing the logical and physical status of a node.
1656 @ivar name: the node name to which this object refers
1657 @ivar volumes: a structure as returned from
1658 L{ganeti.backend.GetVolumeList} (runtime)
1659 @ivar instances: a list of running instances (runtime)
1660 @ivar pinst: list of configured primary instances (config)
1661 @ivar sinst: list of configured secondary instances (config)
1662 @ivar sbp: dictionary of {primary-node: list of instances} for all
1663 instances for which this node is secondary (config)
1664 @ivar mfree: free memory, as reported by hypervisor (runtime)
1665 @ivar dfree: free disk, as reported by the node (runtime)
1666 @ivar offline: the offline status (config)
1667 @type rpc_fail: boolean
1668 @ivar rpc_fail: whether the RPC verify call was successfull (overall,
1669 not whether the individual keys were correct) (runtime)
1670 @type lvm_fail: boolean
1671 @ivar lvm_fail: whether the RPC call didn't return valid LVM data
1672 @type hyp_fail: boolean
1673 @ivar hyp_fail: whether the RPC call didn't return the instance list
1674 @type ghost: boolean
1675 @ivar ghost: whether this is a known node or not (config)
1676 @type os_fail: boolean
1677 @ivar os_fail: whether the RPC call didn't return valid OS data
1679 @ivar oslist: list of OSes as diagnosed by DiagnoseOS
1680 @type vm_capable: boolean
1681 @ivar vm_capable: whether the node can host instances
1684 def __init__(self, offline=False, name=None, vm_capable=True):
1693 self.offline = offline
1694 self.vm_capable = vm_capable
1695 self.rpc_fail = False
1696 self.lvm_fail = False
1697 self.hyp_fail = False
1699 self.os_fail = False
1702 def ExpandNames(self):
1703 # This raises errors.OpPrereqError on its own:
1704 self.group_uuid = self.cfg.LookupNodeGroup(self.op.group_name)
1706 # Get instances in node group; this is unsafe and needs verification later
1707 inst_names = self.cfg.GetNodeGroupInstances(self.group_uuid)
1709 self.needed_locks = {
1710 locking.LEVEL_INSTANCE: inst_names,
1711 locking.LEVEL_NODEGROUP: [self.group_uuid],
1712 locking.LEVEL_NODE: [],
1715 self.share_locks = _ShareAll()
1717 def DeclareLocks(self, level):
1718 if level == locking.LEVEL_NODE:
1719 # Get members of node group; this is unsafe and needs verification later
1720 nodes = set(self.cfg.GetNodeGroup(self.group_uuid).members)
1722 all_inst_info = self.cfg.GetAllInstancesInfo()
1724 # In Exec(), we warn about mirrored instances that have primary and
1725 # secondary living in separate node groups. To fully verify that
1726 # volumes for these instances are healthy, we will need to do an
1727 # extra call to their secondaries. We ensure here those nodes will
1729 for inst in self.owned_locks(locking.LEVEL_INSTANCE):
1730 # Important: access only the instances whose lock is owned
1731 if all_inst_info[inst].disk_template in constants.DTS_INT_MIRROR:
1732 nodes.update(all_inst_info[inst].secondary_nodes)
1734 self.needed_locks[locking.LEVEL_NODE] = nodes
1736 def CheckPrereq(self):
1737 assert self.group_uuid in self.owned_locks(locking.LEVEL_NODEGROUP)
1738 self.group_info = self.cfg.GetNodeGroup(self.group_uuid)
1740 group_nodes = set(self.group_info.members)
1741 group_instances = self.cfg.GetNodeGroupInstances(self.group_uuid)
1744 group_nodes.difference(self.owned_locks(locking.LEVEL_NODE))
1746 unlocked_instances = \
1747 group_instances.difference(self.owned_locks(locking.LEVEL_INSTANCE))
1750 raise errors.OpPrereqError("Missing lock for nodes: %s" %
1751 utils.CommaJoin(unlocked_nodes))
1753 if unlocked_instances:
1754 raise errors.OpPrereqError("Missing lock for instances: %s" %
1755 utils.CommaJoin(unlocked_instances))
1757 self.all_node_info = self.cfg.GetAllNodesInfo()
1758 self.all_inst_info = self.cfg.GetAllInstancesInfo()
1760 self.my_node_names = utils.NiceSort(group_nodes)
1761 self.my_inst_names = utils.NiceSort(group_instances)
1763 self.my_node_info = dict((name, self.all_node_info[name])
1764 for name in self.my_node_names)
1766 self.my_inst_info = dict((name, self.all_inst_info[name])
1767 for name in self.my_inst_names)
1769 # We detect here the nodes that will need the extra RPC calls for verifying
1770 # split LV volumes; they should be locked.
1771 extra_lv_nodes = set()
1773 for inst in self.my_inst_info.values():
1774 if inst.disk_template in constants.DTS_INT_MIRROR:
1775 group = self.my_node_info[inst.primary_node].group
1776 for nname in inst.secondary_nodes:
1777 if self.all_node_info[nname].group != group:
1778 extra_lv_nodes.add(nname)
1780 unlocked_lv_nodes = \
1781 extra_lv_nodes.difference(self.owned_locks(locking.LEVEL_NODE))
1783 if unlocked_lv_nodes:
1784 raise errors.OpPrereqError("these nodes could be locked: %s" %
1785 utils.CommaJoin(unlocked_lv_nodes))
1786 self.extra_lv_nodes = list(extra_lv_nodes)
1788 def _VerifyNode(self, ninfo, nresult):
1789 """Perform some basic validation on data returned from a node.
1791 - check the result data structure is well formed and has all the
1793 - check ganeti version
1795 @type ninfo: L{objects.Node}
1796 @param ninfo: the node to check
1797 @param nresult: the results from the node
1799 @return: whether overall this call was successful (and we can expect
1800 reasonable values in the respose)
1804 _ErrorIf = self._ErrorIf # pylint: disable-msg=C0103
1806 # main result, nresult should be a non-empty dict
1807 test = not nresult or not isinstance(nresult, dict)
1808 _ErrorIf(test, self.ENODERPC, node,
1809 "unable to verify node: no data returned")
1813 # compares ganeti version
1814 local_version = constants.PROTOCOL_VERSION
1815 remote_version = nresult.get("version", None)
1816 test = not (remote_version and
1817 isinstance(remote_version, (list, tuple)) and
1818 len(remote_version) == 2)
1819 _ErrorIf(test, self.ENODERPC, node,
1820 "connection to node returned invalid data")
1824 test = local_version != remote_version[0]
1825 _ErrorIf(test, self.ENODEVERSION, node,
1826 "incompatible protocol versions: master %s,"
1827 " node %s", local_version, remote_version[0])
1831 # node seems compatible, we can actually try to look into its results
1833 # full package version
1834 self._ErrorIf(constants.RELEASE_VERSION != remote_version[1],
1835 self.ENODEVERSION, node,
1836 "software version mismatch: master %s, node %s",
1837 constants.RELEASE_VERSION, remote_version[1],
1838 code=self.ETYPE_WARNING)
1840 hyp_result = nresult.get(constants.NV_HYPERVISOR, None)
1841 if ninfo.vm_capable and isinstance(hyp_result, dict):
1842 for hv_name, hv_result in hyp_result.iteritems():
1843 test = hv_result is not None
1844 _ErrorIf(test, self.ENODEHV, node,
1845 "hypervisor %s verify failure: '%s'", hv_name, hv_result)
1847 hvp_result = nresult.get(constants.NV_HVPARAMS, None)
1848 if ninfo.vm_capable and isinstance(hvp_result, list):
1849 for item, hv_name, hv_result in hvp_result:
1850 _ErrorIf(True, self.ENODEHV, node,
1851 "hypervisor %s parameter verify failure (source %s): %s",
1852 hv_name, item, hv_result)
1854 test = nresult.get(constants.NV_NODESETUP,
1855 ["Missing NODESETUP results"])
1856 _ErrorIf(test, self.ENODESETUP, node, "node setup error: %s",
1861 def _VerifyNodeTime(self, ninfo, nresult,
1862 nvinfo_starttime, nvinfo_endtime):
1863 """Check the node time.
1865 @type ninfo: L{objects.Node}
1866 @param ninfo: the node to check
1867 @param nresult: the remote results for the node
1868 @param nvinfo_starttime: the start time of the RPC call
1869 @param nvinfo_endtime: the end time of the RPC call
1873 _ErrorIf = self._ErrorIf # pylint: disable-msg=C0103
1875 ntime = nresult.get(constants.NV_TIME, None)
1877 ntime_merged = utils.MergeTime(ntime)
1878 except (ValueError, TypeError):
1879 _ErrorIf(True, self.ENODETIME, node, "Node returned invalid time")
1882 if ntime_merged < (nvinfo_starttime - constants.NODE_MAX_CLOCK_SKEW):
1883 ntime_diff = "%.01fs" % abs(nvinfo_starttime - ntime_merged)
1884 elif ntime_merged > (nvinfo_endtime + constants.NODE_MAX_CLOCK_SKEW):
1885 ntime_diff = "%.01fs" % abs(ntime_merged - nvinfo_endtime)
1889 _ErrorIf(ntime_diff is not None, self.ENODETIME, node,
1890 "Node time diverges by at least %s from master node time",
1893 def _VerifyNodeLVM(self, ninfo, nresult, vg_name):
1894 """Check the node LVM results.
1896 @type ninfo: L{objects.Node}
1897 @param ninfo: the node to check
1898 @param nresult: the remote results for the node
1899 @param vg_name: the configured VG name
1906 _ErrorIf = self._ErrorIf # pylint: disable-msg=C0103
1908 # checks vg existence and size > 20G
1909 vglist = nresult.get(constants.NV_VGLIST, None)
1911 _ErrorIf(test, self.ENODELVM, node, "unable to check volume groups")
1913 vgstatus = utils.CheckVolumeGroupSize(vglist, vg_name,
1914 constants.MIN_VG_SIZE)
1915 _ErrorIf(vgstatus, self.ENODELVM, node, vgstatus)
1918 pvlist = nresult.get(constants.NV_PVLIST, None)
1919 test = pvlist is None
1920 _ErrorIf(test, self.ENODELVM, node, "Can't get PV list from node")
1922 # check that ':' is not present in PV names, since it's a
1923 # special character for lvcreate (denotes the range of PEs to
1925 for _, pvname, owner_vg in pvlist:
1926 test = ":" in pvname
1927 _ErrorIf(test, self.ENODELVM, node, "Invalid character ':' in PV"
1928 " '%s' of VG '%s'", pvname, owner_vg)
1930 def _VerifyNodeBridges(self, ninfo, nresult, bridges):
1931 """Check the node bridges.
1933 @type ninfo: L{objects.Node}
1934 @param ninfo: the node to check
1935 @param nresult: the remote results for the node
1936 @param bridges: the expected list of bridges
1943 _ErrorIf = self._ErrorIf # pylint: disable-msg=C0103
1945 missing = nresult.get(constants.NV_BRIDGES, None)
1946 test = not isinstance(missing, list)
1947 _ErrorIf(test, self.ENODENET, node,
1948 "did not return valid bridge information")
1950 _ErrorIf(bool(missing), self.ENODENET, node, "missing bridges: %s" %
1951 utils.CommaJoin(sorted(missing)))
1953 def _VerifyNodeNetwork(self, ninfo, nresult):
1954 """Check the node network connectivity results.
1956 @type ninfo: L{objects.Node}
1957 @param ninfo: the node to check
1958 @param nresult: the remote results for the node
1962 _ErrorIf = self._ErrorIf # pylint: disable-msg=C0103
1964 test = constants.NV_NODELIST not in nresult
1965 _ErrorIf(test, self.ENODESSH, node,
1966 "node hasn't returned node ssh connectivity data")
1968 if nresult[constants.NV_NODELIST]:
1969 for a_node, a_msg in nresult[constants.NV_NODELIST].items():
1970 _ErrorIf(True, self.ENODESSH, node,
1971 "ssh communication with node '%s': %s", a_node, a_msg)
1973 test = constants.NV_NODENETTEST not in nresult
1974 _ErrorIf(test, self.ENODENET, node,
1975 "node hasn't returned node tcp connectivity data")
1977 if nresult[constants.NV_NODENETTEST]:
1978 nlist = utils.NiceSort(nresult[constants.NV_NODENETTEST].keys())
1980 _ErrorIf(True, self.ENODENET, node,
1981 "tcp communication with node '%s': %s",
1982 anode, nresult[constants.NV_NODENETTEST][anode])
1984 test = constants.NV_MASTERIP not in nresult
1985 _ErrorIf(test, self.ENODENET, node,
1986 "node hasn't returned node master IP reachability data")
1988 if not nresult[constants.NV_MASTERIP]:
1989 if node == self.master_node:
1990 msg = "the master node cannot reach the master IP (not configured?)"
1992 msg = "cannot reach the master IP"
1993 _ErrorIf(True, self.ENODENET, node, msg)
1995 def _VerifyInstance(self, instance, instanceconfig, node_image,
1997 """Verify an instance.
1999 This function checks to see if the required block devices are
2000 available on the instance's node.
2003 _ErrorIf = self._ErrorIf # pylint: disable-msg=C0103
2004 node_current = instanceconfig.primary_node
2006 node_vol_should = {}
2007 instanceconfig.MapLVsByNode(node_vol_should)
2009 for node in node_vol_should:
2010 n_img = node_image[node]
2011 if n_img.offline or n_img.rpc_fail or n_img.lvm_fail:
2012 # ignore missing volumes on offline or broken nodes
2014 for volume in node_vol_should[node]:
2015 test = volume not in n_img.volumes
2016 _ErrorIf(test, self.EINSTANCEMISSINGDISK, instance,
2017 "volume %s missing on node %s", volume, node)
2019 if instanceconfig.admin_up:
2020 pri_img = node_image[node_current]
2021 test = instance not in pri_img.instances and not pri_img.offline
2022 _ErrorIf(test, self.EINSTANCEDOWN, instance,
2023 "instance not running on its primary node %s",
2026 diskdata = [(nname, success, status, idx)
2027 for (nname, disks) in diskstatus.items()
2028 for idx, (success, status) in enumerate(disks)]
2030 for nname, success, bdev_status, idx in diskdata:
2031 # the 'ghost node' construction in Exec() ensures that we have a
2033 snode = node_image[nname]
2034 bad_snode = snode.ghost or snode.offline
2035 _ErrorIf(instanceconfig.admin_up and not success and not bad_snode,
2036 self.EINSTANCEFAULTYDISK, instance,
2037 "couldn't retrieve status for disk/%s on %s: %s",
2038 idx, nname, bdev_status)
2039 _ErrorIf((instanceconfig.admin_up and success and
2040 bdev_status.ldisk_status == constants.LDS_FAULTY),
2041 self.EINSTANCEFAULTYDISK, instance,
2042 "disk/%s on %s is faulty", idx, nname)
2044 def _VerifyOrphanVolumes(self, node_vol_should, node_image, reserved):
2045 """Verify if there are any unknown volumes in the cluster.
2047 The .os, .swap and backup volumes are ignored. All other volumes are
2048 reported as unknown.
2050 @type reserved: L{ganeti.utils.FieldSet}
2051 @param reserved: a FieldSet of reserved volume names
2054 for node, n_img in node_image.items():
2055 if n_img.offline or n_img.rpc_fail or n_img.lvm_fail:
2056 # skip non-healthy nodes
2058 for volume in n_img.volumes:
2059 test = ((node not in node_vol_should or
2060 volume not in node_vol_should[node]) and
2061 not reserved.Matches(volume))
2062 self._ErrorIf(test, self.ENODEORPHANLV, node,
2063 "volume %s is unknown", volume)
2065 def _VerifyNPlusOneMemory(self, node_image, instance_cfg):
2066 """Verify N+1 Memory Resilience.
2068 Check that if one single node dies we can still start all the
2069 instances it was primary for.
2072 cluster_info = self.cfg.GetClusterInfo()
2073 for node, n_img in node_image.items():
2074 # This code checks that every node which is now listed as
2075 # secondary has enough memory to host all instances it is
2076 # supposed to should a single other node in the cluster fail.
2077 # FIXME: not ready for failover to an arbitrary node
2078 # FIXME: does not support file-backed instances
2079 # WARNING: we currently take into account down instances as well
2080 # as up ones, considering that even if they're down someone
2081 # might want to start them even in the event of a node failure.
2083 # we're skipping offline nodes from the N+1 warning, since
2084 # most likely we don't have good memory infromation from them;
2085 # we already list instances living on such nodes, and that's
2088 for prinode, instances in n_img.sbp.items():
2090 for instance in instances:
2091 bep = cluster_info.FillBE(instance_cfg[instance])
2092 if bep[constants.BE_AUTO_BALANCE]:
2093 needed_mem += bep[constants.BE_MEMORY]
2094 test = n_img.mfree < needed_mem
2095 self._ErrorIf(test, self.ENODEN1, node,
2096 "not enough memory to accomodate instance failovers"
2097 " should node %s fail (%dMiB needed, %dMiB available)",
2098 prinode, needed_mem, n_img.mfree)
2101 def _VerifyFiles(cls, errorif, nodeinfo, master_node, all_nvinfo,
2102 (files_all, files_all_opt, files_mc, files_vm)):
2103 """Verifies file checksums collected from all nodes.
2105 @param errorif: Callback for reporting errors
2106 @param nodeinfo: List of L{objects.Node} objects
2107 @param master_node: Name of master node
2108 @param all_nvinfo: RPC results
2111 node_names = frozenset(node.name for node in nodeinfo if not node.offline)
2113 assert master_node in node_names
2114 assert (len(files_all | files_all_opt | files_mc | files_vm) ==
2115 sum(map(len, [files_all, files_all_opt, files_mc, files_vm]))), \
2116 "Found file listed in more than one file list"
2118 # Define functions determining which nodes to consider for a file
2119 file2nodefn = dict([(filename, fn)
2120 for (files, fn) in [(files_all, None),
2121 (files_all_opt, None),
2122 (files_mc, lambda node: (node.master_candidate or
2123 node.name == master_node)),
2124 (files_vm, lambda node: node.vm_capable)]
2125 for filename in files])
2127 fileinfo = dict((filename, {}) for filename in file2nodefn.keys())
2129 for node in nodeinfo:
2133 nresult = all_nvinfo[node.name]
2135 if nresult.fail_msg or not nresult.payload:
2138 node_files = nresult.payload.get(constants.NV_FILELIST, None)
2140 test = not (node_files and isinstance(node_files, dict))
2141 errorif(test, cls.ENODEFILECHECK, node.name,
2142 "Node did not return file checksum data")
2146 for (filename, checksum) in node_files.items():
2147 # Check if the file should be considered for a node
2148 fn = file2nodefn[filename]
2149 if fn is None or fn(node):
2150 fileinfo[filename].setdefault(checksum, set()).add(node.name)
2152 for (filename, checksums) in fileinfo.items():
2153 assert compat.all(len(i) > 10 for i in checksums), "Invalid checksum"
2155 # Nodes having the file
2156 with_file = frozenset(node_name
2157 for nodes in fileinfo[filename].values()
2158 for node_name in nodes)
2160 # Nodes missing file
2161 missing_file = node_names - with_file
2163 if filename in files_all_opt:
2165 errorif(missing_file and missing_file != node_names,
2166 cls.ECLUSTERFILECHECK, None,
2167 "File %s is optional, but it must exist on all or no"
2168 " nodes (not found on %s)",
2169 filename, utils.CommaJoin(utils.NiceSort(missing_file)))
2171 errorif(missing_file, cls.ECLUSTERFILECHECK, None,
2172 "File %s is missing from node(s) %s", filename,
2173 utils.CommaJoin(utils.NiceSort(missing_file)))
2175 # See if there are multiple versions of the file
2176 test = len(checksums) > 1
2178 variants = ["variant %s on %s" %
2179 (idx + 1, utils.CommaJoin(utils.NiceSort(nodes)))
2180 for (idx, (checksum, nodes)) in
2181 enumerate(sorted(checksums.items()))]
2185 errorif(test, cls.ECLUSTERFILECHECK, None,
2186 "File %s found with %s different checksums (%s)",
2187 filename, len(checksums), "; ".join(variants))
2189 def _VerifyNodeDrbd(self, ninfo, nresult, instanceinfo, drbd_helper,
2191 """Verifies and the node DRBD status.
2193 @type ninfo: L{objects.Node}
2194 @param ninfo: the node to check
2195 @param nresult: the remote results for the node
2196 @param instanceinfo: the dict of instances
2197 @param drbd_helper: the configured DRBD usermode helper
2198 @param drbd_map: the DRBD map as returned by
2199 L{ganeti.config.ConfigWriter.ComputeDRBDMap}
2203 _ErrorIf = self._ErrorIf # pylint: disable-msg=C0103
2206 helper_result = nresult.get(constants.NV_DRBDHELPER, None)
2207 test = (helper_result == None)
2208 _ErrorIf(test, self.ENODEDRBDHELPER, node,
2209 "no drbd usermode helper returned")
2211 status, payload = helper_result
2213 _ErrorIf(test, self.ENODEDRBDHELPER, node,
2214 "drbd usermode helper check unsuccessful: %s", payload)
2215 test = status and (payload != drbd_helper)
2216 _ErrorIf(test, self.ENODEDRBDHELPER, node,
2217 "wrong drbd usermode helper: %s", payload)
2219 # compute the DRBD minors
2221 for minor, instance in drbd_map[node].items():
2222 test = instance not in instanceinfo
2223 _ErrorIf(test, self.ECLUSTERCFG, None,
2224 "ghost instance '%s' in temporary DRBD map", instance)
2225 # ghost instance should not be running, but otherwise we
2226 # don't give double warnings (both ghost instance and
2227 # unallocated minor in use)
2229 node_drbd[minor] = (instance, False)
2231 instance = instanceinfo[instance]
2232 node_drbd[minor] = (instance.name, instance.admin_up)
2234 # and now check them
2235 used_minors = nresult.get(constants.NV_DRBDLIST, [])
2236 test = not isinstance(used_minors, (tuple, list))
2237 _ErrorIf(test, self.ENODEDRBD, node,
2238 "cannot parse drbd status file: %s", str(used_minors))
2240 # we cannot check drbd status
2243 for minor, (iname, must_exist) in node_drbd.items():
2244 test = minor not in used_minors and must_exist
2245 _ErrorIf(test, self.ENODEDRBD, node,
2246 "drbd minor %d of instance %s is not active", minor, iname)
2247 for minor in used_minors:
2248 test = minor not in node_drbd
2249 _ErrorIf(test, self.ENODEDRBD, node,
2250 "unallocated drbd minor %d is in use", minor)
2252 def _UpdateNodeOS(self, ninfo, nresult, nimg):
2253 """Builds the node OS structures.
2255 @type ninfo: L{objects.Node}
2256 @param ninfo: the node to check
2257 @param nresult: the remote results for the node
2258 @param nimg: the node image object
2262 _ErrorIf = self._ErrorIf # pylint: disable-msg=C0103
2264 remote_os = nresult.get(constants.NV_OSLIST, None)
2265 test = (not isinstance(remote_os, list) or
2266 not compat.all(isinstance(v, list) and len(v) == 7
2267 for v in remote_os))
2269 _ErrorIf(test, self.ENODEOS, node,
2270 "node hasn't returned valid OS data")
2279 for (name, os_path, status, diagnose,
2280 variants, parameters, api_ver) in nresult[constants.NV_OSLIST]:
2282 if name not in os_dict:
2285 # parameters is a list of lists instead of list of tuples due to
2286 # JSON lacking a real tuple type, fix it:
2287 parameters = [tuple(v) for v in parameters]
2288 os_dict[name].append((os_path, status, diagnose,
2289 set(variants), set(parameters), set(api_ver)))
2291 nimg.oslist = os_dict
2293 def _VerifyNodeOS(self, ninfo, nimg, base):
2294 """Verifies the node OS list.
2296 @type ninfo: L{objects.Node}
2297 @param ninfo: the node to check
2298 @param nimg: the node image object
2299 @param base: the 'template' node we match against (e.g. from the master)
2303 _ErrorIf = self._ErrorIf # pylint: disable-msg=C0103
2305 assert not nimg.os_fail, "Entered _VerifyNodeOS with failed OS rpc?"
2307 beautify_params = lambda l: ["%s: %s" % (k, v) for (k, v) in l]
2308 for os_name, os_data in nimg.oslist.items():
2309 assert os_data, "Empty OS status for OS %s?!" % os_name
2310 f_path, f_status, f_diag, f_var, f_param, f_api = os_data[0]
2311 _ErrorIf(not f_status, self.ENODEOS, node,
2312 "Invalid OS %s (located at %s): %s", os_name, f_path, f_diag)
2313 _ErrorIf(len(os_data) > 1, self.ENODEOS, node,
2314 "OS '%s' has multiple entries (first one shadows the rest): %s",
2315 os_name, utils.CommaJoin([v[0] for v in os_data]))
2316 # comparisons with the 'base' image
2317 test = os_name not in base.oslist
2318 _ErrorIf(test, self.ENODEOS, node,
2319 "Extra OS %s not present on reference node (%s)",
2323 assert base.oslist[os_name], "Base node has empty OS status?"
2324 _, b_status, _, b_var, b_param, b_api = base.oslist[os_name][0]
2326 # base OS is invalid, skipping
2328 for kind, a, b in [("API version", f_api, b_api),
2329 ("variants list", f_var, b_var),
2330 ("parameters", beautify_params(f_param),
2331 beautify_params(b_param))]:
2332 _ErrorIf(a != b, self.ENODEOS, node,
2333 "OS %s for %s differs from reference node %s: [%s] vs. [%s]",
2334 kind, os_name, base.name,
2335 utils.CommaJoin(sorted(a)), utils.CommaJoin(sorted(b)))
2337 # check any missing OSes
2338 missing = set(base.oslist.keys()).difference(nimg.oslist.keys())
2339 _ErrorIf(missing, self.ENODEOS, node,
2340 "OSes present on reference node %s but missing on this node: %s",
2341 base.name, utils.CommaJoin(missing))
2343 def _VerifyOob(self, ninfo, nresult):
2344 """Verifies out of band functionality of a node.
2346 @type ninfo: L{objects.Node}
2347 @param ninfo: the node to check
2348 @param nresult: the remote results for the node
2352 # We just have to verify the paths on master and/or master candidates
2353 # as the oob helper is invoked on the master
2354 if ((ninfo.master_candidate or ninfo.master_capable) and
2355 constants.NV_OOB_PATHS in nresult):
2356 for path_result in nresult[constants.NV_OOB_PATHS]:
2357 self._ErrorIf(path_result, self.ENODEOOBPATH, node, path_result)
2359 def _UpdateNodeVolumes(self, ninfo, nresult, nimg, vg_name):
2360 """Verifies and updates the node volume data.
2362 This function will update a L{NodeImage}'s internal structures
2363 with data from the remote call.
2365 @type ninfo: L{objects.Node}
2366 @param ninfo: the node to check
2367 @param nresult: the remote results for the node
2368 @param nimg: the node image object
2369 @param vg_name: the configured VG name
2373 _ErrorIf = self._ErrorIf # pylint: disable-msg=C0103
2375 nimg.lvm_fail = True
2376 lvdata = nresult.get(constants.NV_LVLIST, "Missing LV data")
2379 elif isinstance(lvdata, basestring):
2380 _ErrorIf(True, self.ENODELVM, node, "LVM problem on node: %s",
2381 utils.SafeEncode(lvdata))
2382 elif not isinstance(lvdata, dict):
2383 _ErrorIf(True, self.ENODELVM, node, "rpc call to node failed (lvlist)")
2385 nimg.volumes = lvdata
2386 nimg.lvm_fail = False
2388 def _UpdateNodeInstances(self, ninfo, nresult, nimg):
2389 """Verifies and updates the node instance list.
2391 If the listing was successful, then updates this node's instance
2392 list. Otherwise, it marks the RPC call as failed for the instance
2395 @type ninfo: L{objects.Node}
2396 @param ninfo: the node to check
2397 @param nresult: the remote results for the node
2398 @param nimg: the node image object
2401 idata = nresult.get(constants.NV_INSTANCELIST, None)
2402 test = not isinstance(idata, list)
2403 self._ErrorIf(test, self.ENODEHV, ninfo.name, "rpc call to node failed"
2404 " (instancelist): %s", utils.SafeEncode(str(idata)))
2406 nimg.hyp_fail = True
2408 nimg.instances = idata
2410 def _UpdateNodeInfo(self, ninfo, nresult, nimg, vg_name):
2411 """Verifies and computes a node information map
2413 @type ninfo: L{objects.Node}
2414 @param ninfo: the node to check
2415 @param nresult: the remote results for the node
2416 @param nimg: the node image object
2417 @param vg_name: the configured VG name
2421 _ErrorIf = self._ErrorIf # pylint: disable-msg=C0103
2423 # try to read free memory (from the hypervisor)
2424 hv_info = nresult.get(constants.NV_HVINFO, None)
2425 test = not isinstance(hv_info, dict) or "memory_free" not in hv_info
2426 _ErrorIf(test, self.ENODEHV, node, "rpc call to node failed (hvinfo)")
2429 nimg.mfree = int(hv_info["memory_free"])
2430 except (ValueError, TypeError):
2431 _ErrorIf(True, self.ENODERPC, node,
2432 "node returned invalid nodeinfo, check hypervisor")
2434 # FIXME: devise a free space model for file based instances as well
2435 if vg_name is not None:
2436 test = (constants.NV_VGLIST not in nresult or
2437 vg_name not in nresult[constants.NV_VGLIST])
2438 _ErrorIf(test, self.ENODELVM, node,
2439 "node didn't return data for the volume group '%s'"
2440 " - it is either missing or broken", vg_name)
2443 nimg.dfree = int(nresult[constants.NV_VGLIST][vg_name])
2444 except (ValueError, TypeError):
2445 _ErrorIf(True, self.ENODERPC, node,
2446 "node returned invalid LVM info, check LVM status")
2448 def _CollectDiskInfo(self, nodelist, node_image, instanceinfo):
2449 """Gets per-disk status information for all instances.
2451 @type nodelist: list of strings
2452 @param nodelist: Node names
2453 @type node_image: dict of (name, L{objects.Node})
2454 @param node_image: Node objects
2455 @type instanceinfo: dict of (name, L{objects.Instance})
2456 @param instanceinfo: Instance objects
2457 @rtype: {instance: {node: [(succes, payload)]}}
2458 @return: a dictionary of per-instance dictionaries with nodes as
2459 keys and disk information as values; the disk information is a
2460 list of tuples (success, payload)
2463 _ErrorIf = self._ErrorIf # pylint: disable-msg=C0103
2466 node_disks_devonly = {}
2467 diskless_instances = set()
2468 diskless = constants.DT_DISKLESS
2470 for nname in nodelist:
2471 node_instances = list(itertools.chain(node_image[nname].pinst,
2472 node_image[nname].sinst))
2473 diskless_instances.update(inst for inst in node_instances
2474 if instanceinfo[inst].disk_template == diskless)
2475 disks = [(inst, disk)
2476 for inst in node_instances
2477 for disk in instanceinfo[inst].disks]
2480 # No need to collect data
2483 node_disks[nname] = disks
2485 # Creating copies as SetDiskID below will modify the objects and that can
2486 # lead to incorrect data returned from nodes
2487 devonly = [dev.Copy() for (_, dev) in disks]
2490 self.cfg.SetDiskID(dev, nname)
2492 node_disks_devonly[nname] = devonly
2494 assert len(node_disks) == len(node_disks_devonly)
2496 # Collect data from all nodes with disks
2497 result = self.rpc.call_blockdev_getmirrorstatus_multi(node_disks.keys(),
2500 assert len(result) == len(node_disks)
2504 for (nname, nres) in result.items():
2505 disks = node_disks[nname]
2508 # No data from this node
2509 data = len(disks) * [(False, "node offline")]
2512 _ErrorIf(msg, self.ENODERPC, nname,
2513 "while getting disk information: %s", msg)
2515 # No data from this node
2516 data = len(disks) * [(False, msg)]
2519 for idx, i in enumerate(nres.payload):
2520 if isinstance(i, (tuple, list)) and len(i) == 2:
2523 logging.warning("Invalid result from node %s, entry %d: %s",
2525 data.append((False, "Invalid result from the remote node"))
2527 for ((inst, _), status) in zip(disks, data):
2528 instdisk.setdefault(inst, {}).setdefault(nname, []).append(status)
2530 # Add empty entries for diskless instances.
2531 for inst in diskless_instances:
2532 assert inst not in instdisk
2535 assert compat.all(len(statuses) == len(instanceinfo[inst].disks) and
2536 len(nnames) <= len(instanceinfo[inst].all_nodes) and
2537 compat.all(isinstance(s, (tuple, list)) and
2538 len(s) == 2 for s in statuses)
2539 for inst, nnames in instdisk.items()
2540 for nname, statuses in nnames.items())
2541 assert set(instdisk) == set(instanceinfo), "instdisk consistency failure"
2545 def BuildHooksEnv(self):
2548 Cluster-Verify hooks just ran in the post phase and their failure makes
2549 the output be logged in the verify output and the verification to fail.
2553 "CLUSTER_TAGS": " ".join(self.cfg.GetClusterInfo().GetTags())
2556 env.update(("NODE_TAGS_%s" % node.name, " ".join(node.GetTags()))
2557 for node in self.my_node_info.values())
2561 def BuildHooksNodes(self):
2562 """Build hooks nodes.
2565 return ([], self.my_node_names)
2567 def Exec(self, feedback_fn):
2568 """Verify integrity of the node group, performing various test on nodes.
2571 # This method has too many local variables. pylint: disable-msg=R0914
2572 feedback_fn("* Verifying group '%s'" % self.group_info.name)
2574 if not self.my_node_names:
2576 feedback_fn("* Empty node group, skipping verification")
2580 _ErrorIf = self._ErrorIf # pylint: disable-msg=C0103
2581 verbose = self.op.verbose
2582 self._feedback_fn = feedback_fn
2584 vg_name = self.cfg.GetVGName()
2585 drbd_helper = self.cfg.GetDRBDHelper()
2586 cluster = self.cfg.GetClusterInfo()
2587 groupinfo = self.cfg.GetAllNodeGroupsInfo()
2588 hypervisors = cluster.enabled_hypervisors
2589 node_data_list = [self.my_node_info[name] for name in self.my_node_names]
2591 i_non_redundant = [] # Non redundant instances
2592 i_non_a_balanced = [] # Non auto-balanced instances
2593 n_offline = 0 # Count of offline nodes
2594 n_drained = 0 # Count of nodes being drained
2595 node_vol_should = {}
2597 # FIXME: verify OS list
2600 filemap = _ComputeAncillaryFiles(cluster, False)
2602 # do local checksums
2603 master_node = self.master_node = self.cfg.GetMasterNode()
2604 master_ip = self.cfg.GetMasterIP()
2606 feedback_fn("* Gathering data (%d nodes)" % len(self.my_node_names))
2608 # We will make nodes contact all nodes in their group, and one node from
2609 # every other group.
2610 # TODO: should it be a *random* node, different every time?
2611 online_nodes = [node.name for node in node_data_list if not node.offline]
2612 other_group_nodes = {}
2614 for name in sorted(self.all_node_info):
2615 node = self.all_node_info[name]
2616 if (node.group not in other_group_nodes
2617 and node.group != self.group_uuid
2618 and not node.offline):
2619 other_group_nodes[node.group] = node.name
2621 node_verify_param = {
2622 constants.NV_FILELIST:
2623 utils.UniqueSequence(filename
2624 for files in filemap
2625 for filename in files),
2626 constants.NV_NODELIST: online_nodes + other_group_nodes.values(),
2627 constants.NV_HYPERVISOR: hypervisors,
2628 constants.NV_HVPARAMS:
2629 _GetAllHypervisorParameters(cluster, self.all_inst_info.values()),
2630 constants.NV_NODENETTEST: [(node.name, node.primary_ip, node.secondary_ip)
2631 for node in node_data_list
2632 if not node.offline],
2633 constants.NV_INSTANCELIST: hypervisors,
2634 constants.NV_VERSION: None,
2635 constants.NV_HVINFO: self.cfg.GetHypervisorType(),
2636 constants.NV_NODESETUP: None,
2637 constants.NV_TIME: None,
2638 constants.NV_MASTERIP: (master_node, master_ip),
2639 constants.NV_OSLIST: None,
2640 constants.NV_VMNODES: self.cfg.GetNonVmCapableNodeList(),
2643 if vg_name is not None:
2644 node_verify_param[constants.NV_VGLIST] = None
2645 node_verify_param[constants.NV_LVLIST] = vg_name
2646 node_verify_param[constants.NV_PVLIST] = [vg_name]
2647 node_verify_param[constants.NV_DRBDLIST] = None
2650 node_verify_param[constants.NV_DRBDHELPER] = drbd_helper
2653 # FIXME: this needs to be changed per node-group, not cluster-wide
2655 default_nicpp = cluster.nicparams[constants.PP_DEFAULT]
2656 if default_nicpp[constants.NIC_MODE] == constants.NIC_MODE_BRIDGED:
2657 bridges.add(default_nicpp[constants.NIC_LINK])
2658 for instance in self.my_inst_info.values():
2659 for nic in instance.nics:
2660 full_nic = cluster.SimpleFillNIC(nic.nicparams)
2661 if full_nic[constants.NIC_MODE] == constants.NIC_MODE_BRIDGED:
2662 bridges.add(full_nic[constants.NIC_LINK])
2665 node_verify_param[constants.NV_BRIDGES] = list(bridges)
2667 # Build our expected cluster state
2668 node_image = dict((node.name, self.NodeImage(offline=node.offline,
2670 vm_capable=node.vm_capable))
2671 for node in node_data_list)
2675 for node in self.all_node_info.values():
2676 path = _SupportsOob(self.cfg, node)
2677 if path and path not in oob_paths:
2678 oob_paths.append(path)
2681 node_verify_param[constants.NV_OOB_PATHS] = oob_paths
2683 for instance in self.my_inst_names:
2684 inst_config = self.my_inst_info[instance]
2686 for nname in inst_config.all_nodes:
2687 if nname not in node_image:
2688 gnode = self.NodeImage(name=nname)
2689 gnode.ghost = (nname not in self.all_node_info)
2690 node_image[nname] = gnode
2692 inst_config.MapLVsByNode(node_vol_should)
2694 pnode = inst_config.primary_node
2695 node_image[pnode].pinst.append(instance)
2697 for snode in inst_config.secondary_nodes:
2698 nimg = node_image[snode]
2699 nimg.sinst.append(instance)
2700 if pnode not in nimg.sbp:
2701 nimg.sbp[pnode] = []
2702 nimg.sbp[pnode].append(instance)
2704 # At this point, we have the in-memory data structures complete,
2705 # except for the runtime information, which we'll gather next
2707 # Due to the way our RPC system works, exact response times cannot be
2708 # guaranteed (e.g. a broken node could run into a timeout). By keeping the
2709 # time before and after executing the request, we can at least have a time
2711 nvinfo_starttime = time.time()
2712 all_nvinfo = self.rpc.call_node_verify(self.my_node_names,
2714 self.cfg.GetClusterName())
2715 nvinfo_endtime = time.time()
2717 if self.extra_lv_nodes and vg_name is not None:
2719 self.rpc.call_node_verify(self.extra_lv_nodes,
2720 {constants.NV_LVLIST: vg_name},
2721 self.cfg.GetClusterName())
2723 extra_lv_nvinfo = {}
2725 all_drbd_map = self.cfg.ComputeDRBDMap()
2727 feedback_fn("* Gathering disk information (%s nodes)" %
2728 len(self.my_node_names))
2729 instdisk = self._CollectDiskInfo(self.my_node_names, node_image,
2732 feedback_fn("* Verifying configuration file consistency")
2734 # If not all nodes are being checked, we need to make sure the master node
2735 # and a non-checked vm_capable node are in the list.
2736 absent_nodes = set(self.all_node_info).difference(self.my_node_info)
2738 vf_nvinfo = all_nvinfo.copy()
2739 vf_node_info = list(self.my_node_info.values())
2740 additional_nodes = []
2741 if master_node not in self.my_node_info:
2742 additional_nodes.append(master_node)
2743 vf_node_info.append(self.all_node_info[master_node])
2744 # Add the first vm_capable node we find which is not included
2745 for node in absent_nodes:
2746 nodeinfo = self.all_node_info[node]
2747 if nodeinfo.vm_capable and not nodeinfo.offline:
2748 additional_nodes.append(node)
2749 vf_node_info.append(self.all_node_info[node])
2751 key = constants.NV_FILELIST
2752 vf_nvinfo.update(self.rpc.call_node_verify(additional_nodes,
2753 {key: node_verify_param[key]},
2754 self.cfg.GetClusterName()))
2756 vf_nvinfo = all_nvinfo
2757 vf_node_info = self.my_node_info.values()
2759 self._VerifyFiles(_ErrorIf, vf_node_info, master_node, vf_nvinfo, filemap)
2761 feedback_fn("* Verifying node status")
2765 for node_i in node_data_list:
2767 nimg = node_image[node]
2771 feedback_fn("* Skipping offline node %s" % (node,))
2775 if node == master_node:
2777 elif node_i.master_candidate:
2778 ntype = "master candidate"
2779 elif node_i.drained:
2785 feedback_fn("* Verifying node %s (%s)" % (node, ntype))
2787 msg = all_nvinfo[node].fail_msg
2788 _ErrorIf(msg, self.ENODERPC, node, "while contacting node: %s", msg)
2790 nimg.rpc_fail = True
2793 nresult = all_nvinfo[node].payload
2795 nimg.call_ok = self._VerifyNode(node_i, nresult)
2796 self._VerifyNodeTime(node_i, nresult, nvinfo_starttime, nvinfo_endtime)
2797 self._VerifyNodeNetwork(node_i, nresult)
2798 self._VerifyOob(node_i, nresult)
2801 self._VerifyNodeLVM(node_i, nresult, vg_name)
2802 self._VerifyNodeDrbd(node_i, nresult, self.all_inst_info, drbd_helper,
2805 self._UpdateNodeVolumes(node_i, nresult, nimg, vg_name)
2806 self._UpdateNodeInstances(node_i, nresult, nimg)
2807 self._UpdateNodeInfo(node_i, nresult, nimg, vg_name)
2808 self._UpdateNodeOS(node_i, nresult, nimg)
2810 if not nimg.os_fail:
2811 if refos_img is None:
2813 self._VerifyNodeOS(node_i, nimg, refos_img)
2814 self._VerifyNodeBridges(node_i, nresult, bridges)
2816 # Check whether all running instancies are primary for the node. (This
2817 # can no longer be done from _VerifyInstance below, since some of the
2818 # wrong instances could be from other node groups.)
2819 non_primary_inst = set(nimg.instances).difference(nimg.pinst)
2821 for inst in non_primary_inst:
2822 test = inst in self.all_inst_info
2823 _ErrorIf(test, self.EINSTANCEWRONGNODE, inst,
2824 "instance should not run on node %s", node_i.name)
2825 _ErrorIf(not test, self.ENODEORPHANINSTANCE, node_i.name,
2826 "node is running unknown instance %s", inst)
2828 for node, result in extra_lv_nvinfo.items():
2829 self._UpdateNodeVolumes(self.all_node_info[node], result.payload,
2830 node_image[node], vg_name)
2832 feedback_fn("* Verifying instance status")
2833 for instance in self.my_inst_names:
2835 feedback_fn("* Verifying instance %s" % instance)
2836 inst_config = self.my_inst_info[instance]
2837 self._VerifyInstance(instance, inst_config, node_image,
2839 inst_nodes_offline = []
2841 pnode = inst_config.primary_node
2842 pnode_img = node_image[pnode]
2843 _ErrorIf(pnode_img.rpc_fail and not pnode_img.offline,
2844 self.ENODERPC, pnode, "instance %s, connection to"
2845 " primary node failed", instance)
2847 _ErrorIf(inst_config.admin_up and pnode_img.offline,
2848 self.EINSTANCEBADNODE, instance,
2849 "instance is marked as running and lives on offline node %s",
2850 inst_config.primary_node)
2852 # If the instance is non-redundant we cannot survive losing its primary
2853 # node, so we are not N+1 compliant. On the other hand we have no disk
2854 # templates with more than one secondary so that situation is not well
2856 # FIXME: does not support file-backed instances
2857 if not inst_config.secondary_nodes:
2858 i_non_redundant.append(instance)
2860 _ErrorIf(len(inst_config.secondary_nodes) > 1, self.EINSTANCELAYOUT,
2861 instance, "instance has multiple secondary nodes: %s",
2862 utils.CommaJoin(inst_config.secondary_nodes),
2863 code=self.ETYPE_WARNING)
2865 if inst_config.disk_template in constants.DTS_INT_MIRROR:
2866 pnode = inst_config.primary_node
2867 instance_nodes = utils.NiceSort(inst_config.all_nodes)
2868 instance_groups = {}
2870 for node in instance_nodes:
2871 instance_groups.setdefault(self.all_node_info[node].group,
2875 "%s (group %s)" % (utils.CommaJoin(nodes), groupinfo[group].name)
2876 # Sort so that we always list the primary node first.
2877 for group, nodes in sorted(instance_groups.items(),
2878 key=lambda (_, nodes): pnode in nodes,
2881 self._ErrorIf(len(instance_groups) > 1, self.EINSTANCESPLITGROUPS,
2882 instance, "instance has primary and secondary nodes in"
2883 " different groups: %s", utils.CommaJoin(pretty_list),
2884 code=self.ETYPE_WARNING)
2886 if not cluster.FillBE(inst_config)[constants.BE_AUTO_BALANCE]:
2887 i_non_a_balanced.append(instance)
2889 for snode in inst_config.secondary_nodes:
2890 s_img = node_image[snode]
2891 _ErrorIf(s_img.rpc_fail and not s_img.offline, self.ENODERPC, snode,
2892 "instance %s, connection to secondary node failed", instance)
2895 inst_nodes_offline.append(snode)
2897 # warn that the instance lives on offline nodes
2898 _ErrorIf(inst_nodes_offline, self.EINSTANCEBADNODE, instance,
2899 "instance has offline secondary node(s) %s",
2900 utils.CommaJoin(inst_nodes_offline))
2901 # ... or ghost/non-vm_capable nodes
2902 for node in inst_config.all_nodes:
2903 _ErrorIf(node_image[node].ghost, self.EINSTANCEBADNODE, instance,
2904 "instance lives on ghost node %s", node)
2905 _ErrorIf(not node_image[node].vm_capable, self.EINSTANCEBADNODE,
2906 instance, "instance lives on non-vm_capable node %s", node)
2908 feedback_fn("* Verifying orphan volumes")
2909 reserved = utils.FieldSet(*cluster.reserved_lvs)
2911 # We will get spurious "unknown volume" warnings if any node of this group
2912 # is secondary for an instance whose primary is in another group. To avoid
2913 # them, we find these instances and add their volumes to node_vol_should.
2914 for inst in self.all_inst_info.values():
2915 for secondary in inst.secondary_nodes:
2916 if (secondary in self.my_node_info
2917 and inst.name not in self.my_inst_info):
2918 inst.MapLVsByNode(node_vol_should)
2921 self._VerifyOrphanVolumes(node_vol_should, node_image, reserved)
2923 if constants.VERIFY_NPLUSONE_MEM not in self.op.skip_checks:
2924 feedback_fn("* Verifying N+1 Memory redundancy")
2925 self._VerifyNPlusOneMemory(node_image, self.my_inst_info)
2927 feedback_fn("* Other Notes")
2929 feedback_fn(" - NOTICE: %d non-redundant instance(s) found."
2930 % len(i_non_redundant))
2932 if i_non_a_balanced:
2933 feedback_fn(" - NOTICE: %d non-auto-balanced instance(s) found."
2934 % len(i_non_a_balanced))
2937 feedback_fn(" - NOTICE: %d offline node(s) found." % n_offline)
2940 feedback_fn(" - NOTICE: %d drained node(s) found." % n_drained)
2944 def HooksCallBack(self, phase, hooks_results, feedback_fn, lu_result):
2945 """Analyze the post-hooks' result
2947 This method analyses the hook result, handles it, and sends some
2948 nicely-formatted feedback back to the user.
2950 @param phase: one of L{constants.HOOKS_PHASE_POST} or
2951 L{constants.HOOKS_PHASE_PRE}; it denotes the hooks phase
2952 @param hooks_results: the results of the multi-node hooks rpc call
2953 @param feedback_fn: function used send feedback back to the caller
2954 @param lu_result: previous Exec result
2955 @return: the new Exec result, based on the previous result
2959 # We only really run POST phase hooks, only for non-empty groups,
2960 # and are only interested in their results
2961 if not self.my_node_names:
2964 elif phase == constants.HOOKS_PHASE_POST:
2965 # Used to change hooks' output to proper indentation
2966 feedback_fn("* Hooks Results")
2967 assert hooks_results, "invalid result from hooks"
2969 for node_name in hooks_results:
2970 res = hooks_results[node_name]
2972 test = msg and not res.offline
2973 self._ErrorIf(test, self.ENODEHOOKS, node_name,
2974 "Communication failure in hooks execution: %s", msg)
2975 if res.offline or msg:
2976 # No need to investigate payload if node is offline or gave an error.
2977 # override manually lu_result here as _ErrorIf only
2978 # overrides self.bad
2981 for script, hkr, output in res.payload:
2982 test = hkr == constants.HKR_FAIL
2983 self._ErrorIf(test, self.ENODEHOOKS, node_name,
2984 "Script %s failed, output:", script)
2986 output = self._HOOKS_INDENT_RE.sub(" ", output)
2987 feedback_fn("%s" % output)
2993 class LUClusterVerifyDisks(NoHooksLU):
2994 """Verifies the cluster disks status.
2999 def ExpandNames(self):
3000 self.share_locks = _ShareAll()
3001 self.needed_locks = {
3002 locking.LEVEL_NODEGROUP: locking.ALL_SET,
3005 def Exec(self, feedback_fn):
3006 group_names = self.owned_locks(locking.LEVEL_NODEGROUP)
3008 # Submit one instance of L{opcodes.OpGroupVerifyDisks} per node group
3009 return ResultWithJobs([[opcodes.OpGroupVerifyDisks(group_name=group)]
3010 for group in group_names])
3013 class LUGroupVerifyDisks(NoHooksLU):
3014 """Verifies the status of all disks in a node group.
3019 def ExpandNames(self):
3020 # Raises errors.OpPrereqError on its own if group can't be found
3021 self.group_uuid = self.cfg.LookupNodeGroup(self.op.group_name)
3023 self.share_locks = _ShareAll()
3024 self.needed_locks = {
3025 locking.LEVEL_INSTANCE: [],
3026 locking.LEVEL_NODEGROUP: [],
3027 locking.LEVEL_NODE: [],
3030 def DeclareLocks(self, level):
3031 if level == locking.LEVEL_INSTANCE:
3032 assert not self.needed_locks[locking.LEVEL_INSTANCE]
3034 # Lock instances optimistically, needs verification once node and group
3035 # locks have been acquired
3036 self.needed_locks[locking.LEVEL_INSTANCE] = \
3037 self.cfg.GetNodeGroupInstances(self.group_uuid)
3039 elif level == locking.LEVEL_NODEGROUP:
3040 assert not self.needed_locks[locking.LEVEL_NODEGROUP]
3042 self.needed_locks[locking.LEVEL_NODEGROUP] = \
3043 set([self.group_uuid] +
3044 # Lock all groups used by instances optimistically; this requires
3045 # going via the node before it's locked, requiring verification
3048 for instance_name in self.owned_locks(locking.LEVEL_INSTANCE)
3049 for group_uuid in self.cfg.GetInstanceNodeGroups(instance_name)])
3051 elif level == locking.LEVEL_NODE:
3052 # This will only lock the nodes in the group to be verified which contain
3054 self.recalculate_locks[locking.LEVEL_NODE] = constants.LOCKS_APPEND
3055 self._LockInstancesNodes()
3057 # Lock all nodes in group to be verified
3058 assert self.group_uuid in self.owned_locks(locking.LEVEL_NODEGROUP)
3059 member_nodes = self.cfg.GetNodeGroup(self.group_uuid).members
3060 self.needed_locks[locking.LEVEL_NODE].extend(member_nodes)
3062 def CheckPrereq(self):
3063 owned_instances = frozenset(self.owned_locks(locking.LEVEL_INSTANCE))
3064 owned_groups = frozenset(self.owned_locks(locking.LEVEL_NODEGROUP))
3065 owned_nodes = frozenset(self.owned_locks(locking.LEVEL_NODE))
3067 assert self.group_uuid in owned_groups
3069 # Check if locked instances are still correct
3070 _CheckNodeGroupInstances(self.cfg, self.group_uuid, owned_instances)
3072 # Get instance information
3073 self.instances = dict(self.cfg.GetMultiInstanceInfo(owned_instances))
3075 # Check if node groups for locked instances are still correct
3076 for (instance_name, inst) in self.instances.items():
3077 assert owned_nodes.issuperset(inst.all_nodes), \
3078 "Instance %s's nodes changed while we kept the lock" % instance_name
3080 inst_groups = _CheckInstanceNodeGroups(self.cfg, instance_name,
3083 assert self.group_uuid in inst_groups, \
3084 "Instance %s has no node in group %s" % (instance_name, self.group_uuid)
3086 def Exec(self, feedback_fn):
3087 """Verify integrity of cluster disks.
3089 @rtype: tuple of three items
3090 @return: a tuple of (dict of node-to-node_error, list of instances
3091 which need activate-disks, dict of instance: (node, volume) for
3096 res_instances = set()
3099 nv_dict = _MapInstanceDisksToNodes([inst
3100 for inst in self.instances.values()
3104 nodes = utils.NiceSort(set(self.owned_locks(locking.LEVEL_NODE)) &
3105 set(self.cfg.GetVmCapableNodeList()))
3107 node_lvs = self.rpc.call_lv_list(nodes, [])
3109 for (node, node_res) in node_lvs.items():
3110 if node_res.offline:
3113 msg = node_res.fail_msg
3115 logging.warning("Error enumerating LVs on node %s: %s", node, msg)
3116 res_nodes[node] = msg
3119 for lv_name, (_, _, lv_online) in node_res.payload.items():
3120 inst = nv_dict.pop((node, lv_name), None)
3121 if not (lv_online or inst is None):
3122 res_instances.add(inst)
3124 # any leftover items in nv_dict are missing LVs, let's arrange the data
3126 for key, inst in nv_dict.iteritems():
3127 res_missing.setdefault(inst, []).append(key)
3129 return (res_nodes, list(res_instances), res_missing)
3132 class LUClusterRepairDiskSizes(NoHooksLU):
3133 """Verifies the cluster disks sizes.
3138 def ExpandNames(self):
3139 if self.op.instances:
3140 self.wanted_names = _GetWantedInstances(self, self.op.instances)
3141 self.needed_locks = {
3142 locking.LEVEL_NODE: [],
3143 locking.LEVEL_INSTANCE: self.wanted_names,
3145 self.recalculate_locks[locking.LEVEL_NODE] = constants.LOCKS_REPLACE
3147 self.wanted_names = None
3148 self.needed_locks = {
3149 locking.LEVEL_NODE: locking.ALL_SET,
3150 locking.LEVEL_INSTANCE: locking.ALL_SET,
3152 self.share_locks = _ShareAll()
3154 def DeclareLocks(self, level):
3155 if level == locking.LEVEL_NODE and self.wanted_names is not None:
3156 self._LockInstancesNodes(primary_only=True)
3158 def CheckPrereq(self):
3159 """Check prerequisites.
3161 This only checks the optional instance list against the existing names.
3164 if self.wanted_names is None:
3165 self.wanted_names = self.owned_locks(locking.LEVEL_INSTANCE)
3167 self.wanted_instances = \
3168 map(compat.snd, self.cfg.GetMultiInstanceInfo(self.wanted_names))
3170 def _EnsureChildSizes(self, disk):
3171 """Ensure children of the disk have the needed disk size.
3173 This is valid mainly for DRBD8 and fixes an issue where the
3174 children have smaller disk size.
3176 @param disk: an L{ganeti.objects.Disk} object
3179 if disk.dev_type == constants.LD_DRBD8:
3180 assert disk.children, "Empty children for DRBD8?"
3181 fchild = disk.children[0]
3182 mismatch = fchild.size < disk.size
3184 self.LogInfo("Child disk has size %d, parent %d, fixing",
3185 fchild.size, disk.size)
3186 fchild.size = disk.size
3188 # and we recurse on this child only, not on the metadev
3189 return self._EnsureChildSizes(fchild) or mismatch
3193 def Exec(self, feedback_fn):
3194 """Verify the size of cluster disks.
3197 # TODO: check child disks too
3198 # TODO: check differences in size between primary/secondary nodes
3200 for instance in self.wanted_instances:
3201 pnode = instance.primary_node
3202 if pnode not in per_node_disks:
3203 per_node_disks[pnode] = []
3204 for idx, disk in enumerate(instance.disks):
3205 per_node_disks[pnode].append((instance, idx, disk))
3208 for node, dskl in per_node_disks.items():
3209 newl = [v[2].Copy() for v in dskl]
3211 self.cfg.SetDiskID(dsk, node)
3212 result = self.rpc.call_blockdev_getsize(node, newl)
3214 self.LogWarning("Failure in blockdev_getsize call to node"
3215 " %s, ignoring", node)
3217 if len(result.payload) != len(dskl):
3218 logging.warning("Invalid result from node %s: len(dksl)=%d,"
3219 " result.payload=%s", node, len(dskl), result.payload)
3220 self.LogWarning("Invalid result from node %s, ignoring node results",
3223 for ((instance, idx, disk), size) in zip(dskl, result.payload):
3225 self.LogWarning("Disk %d of instance %s did not return size"
3226 " information, ignoring", idx, instance.name)
3228 if not isinstance(size, (int, long)):
3229 self.LogWarning("Disk %d of instance %s did not return valid"
3230 " size information, ignoring", idx, instance.name)
3233 if size != disk.size:
3234 self.LogInfo("Disk %d of instance %s has mismatched size,"
3235 " correcting: recorded %d, actual %d", idx,
3236 instance.name, disk.size, size)
3238 self.cfg.Update(instance, feedback_fn)
3239 changed.append((instance.name, idx, size))
3240 if self._EnsureChildSizes(disk):
3241 self.cfg.Update(instance, feedback_fn)
3242 changed.append((instance.name, idx, disk.size))
3246 class LUClusterRename(LogicalUnit):
3247 """Rename the cluster.
3250 HPATH = "cluster-rename"
3251 HTYPE = constants.HTYPE_CLUSTER
3253 def BuildHooksEnv(self):
3258 "OP_TARGET": self.cfg.GetClusterName(),
3259 "NEW_NAME": self.op.name,
3262 def BuildHooksNodes(self):
3263 """Build hooks nodes.
3266 return ([self.cfg.GetMasterNode()], self.cfg.GetNodeList())
3268 def CheckPrereq(self):
3269 """Verify that the passed name is a valid one.
3272 hostname = netutils.GetHostname(name=self.op.name,
3273 family=self.cfg.GetPrimaryIPFamily())
3275 new_name = hostname.name
3276 self.ip = new_ip = hostname.ip
3277 old_name = self.cfg.GetClusterName()
3278 old_ip = self.cfg.GetMasterIP()
3279 if new_name == old_name and new_ip == old_ip:
3280 raise errors.OpPrereqError("Neither the name nor the IP address of the"
3281 " cluster has changed",
3283 if new_ip != old_ip:
3284 if netutils.TcpPing(new_ip, constants.DEFAULT_NODED_PORT):
3285 raise errors.OpPrereqError("The given cluster IP address (%s) is"
3286 " reachable on the network" %
3287 new_ip, errors.ECODE_NOTUNIQUE)
3289 self.op.name = new_name
3291 def Exec(self, feedback_fn):
3292 """Rename the cluster.
3295 clustername = self.op.name
3298 # shutdown the master IP
3299 master = self.cfg.GetMasterNode()
3300 result = self.rpc.call_node_stop_master(master, False)
3301 result.Raise("Could not disable the master role")
3304 cluster = self.cfg.GetClusterInfo()
3305 cluster.cluster_name = clustername
3306 cluster.master_ip = ip
3307 self.cfg.Update(cluster, feedback_fn)
3309 # update the known hosts file
3310 ssh.WriteKnownHostsFile(self.cfg, constants.SSH_KNOWN_HOSTS_FILE)
3311 node_list = self.cfg.GetOnlineNodeList()
3313 node_list.remove(master)
3316 _UploadHelper(self, node_list, constants.SSH_KNOWN_HOSTS_FILE)
3318 result = self.rpc.call_node_start_master(master, False, False)
3319 msg = result.fail_msg
3321 self.LogWarning("Could not re-enable the master role on"
3322 " the master, please restart manually: %s", msg)
3327 class LUClusterSetParams(LogicalUnit):
3328 """Change the parameters of the cluster.
3331 HPATH = "cluster-modify"
3332 HTYPE = constants.HTYPE_CLUSTER
3335 def CheckArguments(self):
3339 if self.op.uid_pool:
3340 uidpool.CheckUidPool(self.op.uid_pool)
3342 if self.op.add_uids:
3343 uidpool.CheckUidPool(self.op.add_uids)
3345 if self.op.remove_uids:
3346 uidpool.CheckUidPool(self.op.remove_uids)
3348 def ExpandNames(self):
3349 # FIXME: in the future maybe other cluster params won't require checking on
3350 # all nodes to be modified.
3351 self.needed_locks = {
3352 locking.LEVEL_NODE: locking.ALL_SET,
3354 self.share_locks[locking.LEVEL_NODE] = 1
3356 def BuildHooksEnv(self):
3361 "OP_TARGET": self.cfg.GetClusterName(),
3362 "NEW_VG_NAME": self.op.vg_name,
3365 def BuildHooksNodes(self):
3366 """Build hooks nodes.
3369 mn = self.cfg.GetMasterNode()
3372 def CheckPrereq(self):
3373 """Check prerequisites.
3375 This checks whether the given params don't conflict and
3376 if the given volume group is valid.
3379 if self.op.vg_name is not None and not self.op.vg_name:
3380 if self.cfg.HasAnyDiskOfType(constants.LD_LV):
3381 raise errors.OpPrereqError("Cannot disable lvm storage while lvm-based"
3382 " instances exist", errors.ECODE_INVAL)
3384 if self.op.drbd_helper is not None and not self.op.drbd_helper:
3385 if self.cfg.HasAnyDiskOfType(constants.LD_DRBD8):
3386 raise errors.OpPrereqError("Cannot disable drbd helper while"
3387 " drbd-based instances exist",
3390 node_list = self.owned_locks(locking.LEVEL_NODE)
3392 # if vg_name not None, checks given volume group on all nodes
3394 vglist = self.rpc.call_vg_list(node_list)
3395 for node in node_list:
3396 msg = vglist[node].fail_msg
3398 # ignoring down node
3399 self.LogWarning("Error while gathering data on node %s"
3400 " (ignoring node): %s", node, msg)
3402 vgstatus = utils.CheckVolumeGroupSize(vglist[node].payload,
3404 constants.MIN_VG_SIZE)
3406 raise errors.OpPrereqError("Error on node '%s': %s" %
3407 (node, vgstatus), errors.ECODE_ENVIRON)
3409 if self.op.drbd_helper:
3410 # checks given drbd helper on all nodes
3411 helpers = self.rpc.call_drbd_helper(node_list)
3412 for (node, ninfo) in self.cfg.GetMultiNodeInfo(node_list):
3414 self.LogInfo("Not checking drbd helper on offline node %s", node)
3416 msg = helpers[node].fail_msg
3418 raise errors.OpPrereqError("Error checking drbd helper on node"
3419 " '%s': %s" % (node, msg),
3420 errors.ECODE_ENVIRON)
3421 node_helper = helpers[node].payload
3422 if node_helper != self.op.drbd_helper:
3423 raise errors.OpPrereqError("Error on node '%s': drbd helper is %s" %
3424 (node, node_helper), errors.ECODE_ENVIRON)
3426 self.cluster = cluster = self.cfg.GetClusterInfo()
3427 # validate params changes
3428 if self.op.beparams:
3429 utils.ForceDictType(self.op.beparams, constants.BES_PARAMETER_TYPES)
3430 self.new_beparams = cluster.SimpleFillBE(self.op.beparams)
3432 if self.op.ndparams:
3433 utils.ForceDictType(self.op.ndparams, constants.NDS_PARAMETER_TYPES)
3434 self.new_ndparams = cluster.SimpleFillND(self.op.ndparams)
3436 # TODO: we need a more general way to handle resetting
3437 # cluster-level parameters to default values
3438 if self.new_ndparams["oob_program"] == "":
3439 self.new_ndparams["oob_program"] = \
3440 constants.NDC_DEFAULTS[constants.ND_OOB_PROGRAM]
3442 if self.op.nicparams:
3443 utils.ForceDictType(self.op.nicparams, constants.NICS_PARAMETER_TYPES)
3444 self.new_nicparams = cluster.SimpleFillNIC(self.op.nicparams)
3445 objects.NIC.CheckParameterSyntax(self.new_nicparams)
3448 # check all instances for consistency
3449 for instance in self.cfg.GetAllInstancesInfo().values():
3450 for nic_idx, nic in enumerate(instance.nics):
3451 params_copy = copy.deepcopy(nic.nicparams)
3452 params_filled = objects.FillDict(self.new_nicparams, params_copy)
3454 # check parameter syntax
3456 objects.NIC.CheckParameterSyntax(params_filled)
3457 except errors.ConfigurationError, err:
3458 nic_errors.append("Instance %s, nic/%d: %s" %
3459 (instance.name, nic_idx, err))
3461 # if we're moving instances to routed, check that they have an ip
3462 target_mode = params_filled[constants.NIC_MODE]
3463 if target_mode == constants.NIC_MODE_ROUTED and not nic.ip:
3464 nic_errors.append("Instance %s, nic/%d: routed NIC with no ip"
3465 " address" % (instance.name, nic_idx))
3467 raise errors.OpPrereqError("Cannot apply the change, errors:\n%s" %
3468 "\n".join(nic_errors))
3470 # hypervisor list/parameters
3471 self.new_hvparams = new_hvp = objects.FillDict(cluster.hvparams, {})
3472 if self.op.hvparams:
3473 for hv_name, hv_dict in self.op.hvparams.items():
3474 if hv_name not in self.new_hvparams:
3475 self.new_hvparams[hv_name] = hv_dict
3477 self.new_hvparams[hv_name].update(hv_dict)
3479 # os hypervisor parameters
3480 self.new_os_hvp = objects.FillDict(cluster.os_hvp, {})
3482 for os_name, hvs in self.op.os_hvp.items():
3483 if os_name not in self.new_os_hvp:
3484 self.new_os_hvp[os_name] = hvs
3486 for hv_name, hv_dict in hvs.items():
3487 if hv_name not in self.new_os_hvp[os_name]:
3488 self.new_os_hvp[os_name][hv_name] = hv_dict
3490 self.new_os_hvp[os_name][hv_name].update(hv_dict)
3493 self.new_osp = objects.FillDict(cluster.osparams, {})
3494 if self.op.osparams:
3495 for os_name, osp in self.op.osparams.items():
3496 if os_name not in self.new_osp:
3497 self.new_osp[os_name] = {}
3499 self.new_osp[os_name] = _GetUpdatedParams(self.new_osp[os_name], osp,
3502 if not self.new_osp[os_name]:
3503 # we removed all parameters
3504 del self.new_osp[os_name]
3506 # check the parameter validity (remote check)
3507 _CheckOSParams(self, False, [self.cfg.GetMasterNode()],
3508 os_name, self.new_osp[os_name])
3510 # changes to the hypervisor list
3511 if self.op.enabled_hypervisors is not None:
3512 self.hv_list = self.op.enabled_hypervisors
3513 for hv in self.hv_list:
3514 # if the hypervisor doesn't already exist in the cluster
3515 # hvparams, we initialize it to empty, and then (in both
3516 # cases) we make sure to fill the defaults, as we might not
3517 # have a complete defaults list if the hypervisor wasn't
3519 if hv not in new_hvp:
3521 new_hvp[hv] = objects.FillDict(constants.HVC_DEFAULTS[hv], new_hvp[hv])
3522 utils.ForceDictType(new_hvp[hv], constants.HVS_PARAMETER_TYPES)
3524 self.hv_list = cluster.enabled_hypervisors
3526 if self.op.hvparams or self.op.enabled_hypervisors is not None:
3527 # either the enabled list has changed, or the parameters have, validate
3528 for hv_name, hv_params in self.new_hvparams.items():
3529 if ((self.op.hvparams and hv_name in self.op.hvparams) or
3530 (self.op.enabled_hypervisors and
3531 hv_name in self.op.enabled_hypervisors)):
3532 # either this is a new hypervisor, or its parameters have changed
3533 hv_class = hypervisor.GetHypervisor(hv_name)
3534 utils.ForceDictType(hv_params, constants.HVS_PARAMETER_TYPES)
3535 hv_class.CheckParameterSyntax(hv_params)
3536 _CheckHVParams(self, node_list, hv_name, hv_params)
3539 # no need to check any newly-enabled hypervisors, since the
3540 # defaults have already been checked in the above code-block
3541 for os_name, os_hvp in self.new_os_hvp.items():
3542 for hv_name, hv_params in os_hvp.items():
3543 utils.ForceDictType(hv_params, constants.HVS_PARAMETER_TYPES)
3544 # we need to fill in the new os_hvp on top of the actual hv_p
3545 cluster_defaults = self.new_hvparams.get(hv_name, {})
3546 new_osp = objects.FillDict(cluster_defaults, hv_params)
3547 hv_class = hypervisor.GetHypervisor(hv_name)
3548 hv_class.CheckParameterSyntax(new_osp)
3549 _CheckHVParams(self, node_list, hv_name, new_osp)
3551 if self.op.default_iallocator:
3552 alloc_script = utils.FindFile(self.op.default_iallocator,
3553 constants.IALLOCATOR_SEARCH_PATH,
3555 if alloc_script is None:
3556 raise errors.OpPrereqError("Invalid default iallocator script '%s'"
3557 " specified" % self.op.default_iallocator,
3560 def Exec(self, feedback_fn):
3561 """Change the parameters of the cluster.
3564 if self.op.vg_name is not None:
3565 new_volume = self.op.vg_name
3568 if new_volume != self.cfg.GetVGName():
3569 self.cfg.SetVGName(new_volume)
3571 feedback_fn("Cluster LVM configuration already in desired"
3572 " state, not changing")
3573 if self.op.drbd_helper is not None:
3574 new_helper = self.op.drbd_helper
3577 if new_helper != self.cfg.GetDRBDHelper():
3578 self.cfg.SetDRBDHelper(new_helper)
3580 feedback_fn("Cluster DRBD helper already in desired state,"
3582 if self.op.hvparams:
3583 self.cluster.hvparams = self.new_hvparams
3585 self.cluster.os_hvp = self.new_os_hvp
3586 if self.op.enabled_hypervisors is not None:
3587 self.cluster.hvparams = self.new_hvparams
3588 self.cluster.enabled_hypervisors = self.op.enabled_hypervisors
3589 if self.op.beparams:
3590 self.cluster.beparams[constants.PP_DEFAULT] = self.new_beparams
3591 if self.op.nicparams:
3592 self.cluster.nicparams[constants.PP_DEFAULT] = self.new_nicparams
3593 if self.op.osparams:
3594 self.cluster.osparams = self.new_osp
3595 if self.op.ndparams:
3596 self.cluster.ndparams = self.new_ndparams
3598 if self.op.candidate_pool_size is not None:
3599 self.cluster.candidate_pool_size = self.op.candidate_pool_size
3600 # we need to update the pool size here, otherwise the save will fail
3601 _AdjustCandidatePool(self, [])
3603 if self.op.maintain_node_health is not None:
3604 self.cluster.maintain_node_health = self.op.maintain_node_health
3606 if self.op.prealloc_wipe_disks is not None:
3607 self.cluster.prealloc_wipe_disks = self.op.prealloc_wipe_disks
3609 if self.op.add_uids is not None:
3610 uidpool.AddToUidPool(self.cluster.uid_pool, self.op.add_uids)
3612 if self.op.remove_uids is not None:
3613 uidpool.RemoveFromUidPool(self.cluster.uid_pool, self.op.remove_uids)
3615 if self.op.uid_pool is not None:
3616 self.cluster.uid_pool = self.op.uid_pool
3618 if self.op.default_iallocator is not None:
3619 self.cluster.default_iallocator = self.op.default_iallocator
3621 if self.op.reserved_lvs is not None:
3622 self.cluster.reserved_lvs = self.op.reserved_lvs
3624 def helper_os(aname, mods, desc):
3626 lst = getattr(self.cluster, aname)
3627 for key, val in mods:
3628 if key == constants.DDM_ADD:
3630 feedback_fn("OS %s already in %s, ignoring" % (val, desc))
3633 elif key == constants.DDM_REMOVE:
3637 feedback_fn("OS %s not found in %s, ignoring" % (val, desc))
3639 raise errors.ProgrammerError("Invalid modification '%s'" % key)
3641 if self.op.hidden_os:
3642 helper_os("hidden_os", self.op.hidden_os, "hidden")
3644 if self.op.blacklisted_os:
3645 helper_os("blacklisted_os", self.op.blacklisted_os, "blacklisted")
3647 if self.op.master_netdev:
3648 master = self.cfg.GetMasterNode()
3649 feedback_fn("Shutting down master ip on the current netdev (%s)" %
3650 self.cluster.master_netdev)
3651 result = self.rpc.call_node_stop_master(master, False)
3652 result.Raise("Could not disable the master ip")
3653 feedback_fn("Changing master_netdev from %s to %s" %
3654 (self.cluster.master_netdev, self.op.master_netdev))
3655 self.cluster.master_netdev = self.op.master_netdev
3657 self.cfg.Update(self.cluster, feedback_fn)
3659 if self.op.master_netdev:
3660 feedback_fn("Starting the master ip on the new master netdev (%s)" %
3661 self.op.master_netdev)
3662 result = self.rpc.call_node_start_master(master, False, False)
3664 self.LogWarning("Could not re-enable the master ip on"
3665 " the master, please restart manually: %s",
3669 def _UploadHelper(lu, nodes, fname):
3670 """Helper for uploading a file and showing warnings.
3673 if os.path.exists(fname):
3674 result = lu.rpc.call_upload_file(nodes, fname)
3675 for to_node, to_result in result.items():
3676 msg = to_result.fail_msg
3678 msg = ("Copy of file %s to node %s failed: %s" %
3679 (fname, to_node, msg))
3680 lu.proc.LogWarning(msg)
3683 def _ComputeAncillaryFiles(cluster, redist):
3684 """Compute files external to Ganeti which need to be consistent.
3686 @type redist: boolean
3687 @param redist: Whether to include files which need to be redistributed
3690 # Compute files for all nodes
3692 constants.SSH_KNOWN_HOSTS_FILE,
3693 constants.CONFD_HMAC_KEY,
3694 constants.CLUSTER_DOMAIN_SECRET_FILE,
3698 files_all.update(constants.ALL_CERT_FILES)
3699 files_all.update(ssconf.SimpleStore().GetFileList())
3701 if cluster.modify_etc_hosts:
3702 files_all.add(constants.ETC_HOSTS)
3704 # Files which must either exist on all nodes or on none
3705 files_all_opt = set([
3706 constants.RAPI_USERS_FILE,
3709 # Files which should only be on master candidates
3712 files_mc.add(constants.CLUSTER_CONF_FILE)
3714 # Files which should only be on VM-capable nodes
3715 files_vm = set(filename
3716 for hv_name in cluster.enabled_hypervisors
3717 for filename in hypervisor.GetHypervisor(hv_name).GetAncillaryFiles())
3719 # Filenames must be unique
3720 assert (len(files_all | files_all_opt | files_mc | files_vm) ==
3721 sum(map(len, [files_all, files_all_opt, files_mc, files_vm]))), \
3722 "Found file listed in more than one file list"
3724 return (files_all, files_all_opt, files_mc, files_vm)
3727 def _RedistributeAncillaryFiles(lu, additional_nodes=None, additional_vm=True):
3728 """Distribute additional files which are part of the cluster configuration.
3730 ConfigWriter takes care of distributing the config and ssconf files, but
3731 there are more files which should be distributed to all nodes. This function
3732 makes sure those are copied.
3734 @param lu: calling logical unit
3735 @param additional_nodes: list of nodes not in the config to distribute to
3736 @type additional_vm: boolean
3737 @param additional_vm: whether the additional nodes are vm-capable or not
3740 # Gather target nodes
3741 cluster = lu.cfg.GetClusterInfo()
3742 master_info = lu.cfg.GetNodeInfo(lu.cfg.GetMasterNode())
3744 online_nodes = lu.cfg.GetOnlineNodeList()
3745 vm_nodes = lu.cfg.GetVmCapableNodeList()
3747 if additional_nodes is not None:
3748 online_nodes.extend(additional_nodes)
3750 vm_nodes.extend(additional_nodes)
3752 # Never distribute to master node
3753 for nodelist in [online_nodes, vm_nodes]:
3754 if master_info.name in nodelist:
3755 nodelist.remove(master_info.name)
3758 (files_all, files_all_opt, files_mc, files_vm) = \
3759 _ComputeAncillaryFiles(cluster, True)
3761 # Never re-distribute configuration file from here
3762 assert not (constants.CLUSTER_CONF_FILE in files_all or
3763 constants.CLUSTER_CONF_FILE in files_vm)
3764 assert not files_mc, "Master candidates not handled in this function"
3767 (online_nodes, files_all),
3768 (online_nodes, files_all_opt),
3769 (vm_nodes, files_vm),
3773 for (node_list, files) in filemap:
3775 _UploadHelper(lu, node_list, fname)
3778 class LUClusterRedistConf(NoHooksLU):
3779 """Force the redistribution of cluster configuration.
3781 This is a very simple LU.
3786 def ExpandNames(self):
3787 self.needed_locks = {
3788 locking.LEVEL_NODE: locking.ALL_SET,
3790 self.share_locks[locking.LEVEL_NODE] = 1
3792 def Exec(self, feedback_fn):
3793 """Redistribute the configuration.
3796 self.cfg.Update(self.cfg.GetClusterInfo(), feedback_fn)
3797 _RedistributeAncillaryFiles(self)
3800 def _WaitForSync(lu, instance, disks=None, oneshot=False):
3801 """Sleep and poll for an instance's disk to sync.
3804 if not instance.disks or disks is not None and not disks:
3807 disks = _ExpandCheckDisks(instance, disks)
3810 lu.proc.LogInfo("Waiting for instance %s to sync disks." % instance.name)
3812 node = instance.primary_node
3815 lu.cfg.SetDiskID(dev, node)
3817 # TODO: Convert to utils.Retry
3820 degr_retries = 10 # in seconds, as we sleep 1 second each time
3824 cumul_degraded = False
3825 rstats = lu.rpc.call_blockdev_getmirrorstatus(node, disks)
3826 msg = rstats.fail_msg
3828 lu.LogWarning("Can't get any data from node %s: %s", node, msg)
3831 raise errors.RemoteError("Can't contact node %s for mirror data,"
3832 " aborting." % node)
3835 rstats = rstats.payload
3837 for i, mstat in enumerate(rstats):
3839 lu.LogWarning("Can't compute data for node %s/%s",
3840 node, disks[i].iv_name)
3843 cumul_degraded = (cumul_degraded or
3844 (mstat.is_degraded and mstat.sync_percent is None))
3845 if mstat.sync_percent is not None:
3847 if mstat.estimated_time is not None:
3848 rem_time = ("%s remaining (estimated)" %
3849 utils.FormatSeconds(mstat.estimated_time))
3850 max_time = mstat.estimated_time
3852 rem_time = "no time estimate"
3853 lu.proc.LogInfo("- device %s: %5.2f%% done, %s" %
3854 (disks[i].iv_name, mstat.sync_percent, rem_time))
3856 # if we're done but degraded, let's do a few small retries, to
3857 # make sure we see a stable and not transient situation; therefore
3858 # we force restart of the loop
3859 if (done or oneshot) and cumul_degraded and degr_retries > 0:
3860 logging.info("Degraded disks found, %d retries left", degr_retries)
3868 time.sleep(min(60, max_time))
3871 lu.proc.LogInfo("Instance %s's disks are in sync." % instance.name)
3872 return not cumul_degraded
3875 def _CheckDiskConsistency(lu, dev, node, on_primary, ldisk=False):
3876 """Check that mirrors are not degraded.
3878 The ldisk parameter, if True, will change the test from the
3879 is_degraded attribute (which represents overall non-ok status for
3880 the device(s)) to the ldisk (representing the local storage status).
3883 lu.cfg.SetDiskID(dev, node)
3887 if on_primary or dev.AssembleOnSecondary():
3888 rstats = lu.rpc.call_blockdev_find(node, dev)
3889 msg = rstats.fail_msg
3891 lu.LogWarning("Can't find disk on node %s: %s", node, msg)
3893 elif not rstats.payload:
3894 lu.LogWarning("Can't find disk on node %s", node)
3898 result = result and rstats.payload.ldisk_status == constants.LDS_OKAY
3900 result = result and not rstats.payload.is_degraded
3903 for child in dev.children:
3904 result = result and _CheckDiskConsistency(lu, child, node, on_primary)
3909 class LUOobCommand(NoHooksLU):
3910 """Logical unit for OOB handling.
3914 _SKIP_MASTER = (constants.OOB_POWER_OFF, constants.OOB_POWER_CYCLE)
3916 def ExpandNames(self):
3917 """Gather locks we need.
3920 if self.op.node_names:
3921 self.op.node_names = _GetWantedNodes(self, self.op.node_names)
3922 lock_names = self.op.node_names
3924 lock_names = locking.ALL_SET
3926 self.needed_locks = {
3927 locking.LEVEL_NODE: lock_names,
3930 def CheckPrereq(self):
3931 """Check prerequisites.
3934 - the node exists in the configuration
3937 Any errors are signaled by raising errors.OpPrereqError.
3941 self.master_node = self.cfg.GetMasterNode()
3943 assert self.op.power_delay >= 0.0
3945 if self.op.node_names:
3946 if (self.op.command in self._SKIP_MASTER and
3947 self.master_node in self.op.node_names):
3948 master_node_obj = self.cfg.GetNodeInfo(self.master_node)
3949 master_oob_handler = _SupportsOob(self.cfg, master_node_obj)
3951 if master_oob_handler:
3952 additional_text = ("run '%s %s %s' if you want to operate on the"
3953 " master regardless") % (master_oob_handler,
3957 additional_text = "it does not support out-of-band operations"
3959 raise errors.OpPrereqError(("Operating on the master node %s is not"
3960 " allowed for %s; %s") %
3961 (self.master_node, self.op.command,
3962 additional_text), errors.ECODE_INVAL)
3964 self.op.node_names = self.cfg.GetNodeList()
3965 if self.op.command in self._SKIP_MASTER:
3966 self.op.node_names.remove(self.master_node)
3968 if self.op.command in self._SKIP_MASTER:
3969 assert self.master_node not in self.op.node_names
3971 for (node_name, node) in self.cfg.GetMultiNodeInfo(self.op.node_names):
3973 raise errors.OpPrereqError("Node %s not found" % node_name,
3976 self.nodes.append(node)
3978 if (not self.op.ignore_status and
3979 (self.op.command == constants.OOB_POWER_OFF and not node.offline)):
3980 raise errors.OpPrereqError(("Cannot power off node %s because it is"
3981 " not marked offline") % node_name,
3984 def Exec(self, feedback_fn):
3985 """Execute OOB and return result if we expect any.
3988 master_node = self.master_node
3991 for idx, node in enumerate(utils.NiceSort(self.nodes,
3992 key=lambda node: node.name)):
3993 node_entry = [(constants.RS_NORMAL, node.name)]
3994 ret.append(node_entry)
3996 oob_program = _SupportsOob(self.cfg, node)
3999 node_entry.append((constants.RS_UNAVAIL, None))
4002 logging.info("Executing out-of-band command '%s' using '%s' on %s",
4003 self.op.command, oob_program, node.name)
4004 result = self.rpc.call_run_oob(master_node, oob_program,
4005 self.op.command, node.name,
4009 self.LogWarning("Out-of-band RPC failed on node '%s': %s",
4010 node.name, result.fail_msg)
4011 node_entry.append((constants.RS_NODATA, None))
4014 self._CheckPayload(result)
4015 except errors.OpExecError, err:
4016 self.LogWarning("Payload returned by node '%s' is not valid: %s",
4018 node_entry.append((constants.RS_NODATA, None))
4020 if self.op.command == constants.OOB_HEALTH:
4021 # For health we should log important events
4022 for item, status in result.payload:
4023 if status in [constants.OOB_STATUS_WARNING,
4024 constants.OOB_STATUS_CRITICAL]:
4025 self.LogWarning("Item '%s' on node '%s' has status '%s'",
4026 item, node.name, status)
4028 if self.op.command == constants.OOB_POWER_ON:
4030 elif self.op.command == constants.OOB_POWER_OFF:
4031 node.powered = False
4032 elif self.op.command == constants.OOB_POWER_STATUS:
4033 powered = result.payload[constants.OOB_POWER_STATUS_POWERED]
4034 if powered != node.powered:
4035 logging.warning(("Recorded power state (%s) of node '%s' does not"
4036 " match actual power state (%s)"), node.powered,
4039 # For configuration changing commands we should update the node
4040 if self.op.command in (constants.OOB_POWER_ON,
4041 constants.OOB_POWER_OFF):
4042 self.cfg.Update(node, feedback_fn)
4044 node_entry.append((constants.RS_NORMAL, result.payload))
4046 if (self.op.command == constants.OOB_POWER_ON and
4047 idx < len(self.nodes) - 1):
4048 time.sleep(self.op.power_delay)
4052 def _CheckPayload(self, result):
4053 """Checks if the payload is valid.
4055 @param result: RPC result
4056 @raises errors.OpExecError: If payload is not valid
4060 if self.op.command == constants.OOB_HEALTH:
4061 if not isinstance(result.payload, list):
4062 errs.append("command 'health' is expected to return a list but got %s" %
4063 type(result.payload))
4065 for item, status in result.payload:
4066 if status not in constants.OOB_STATUSES:
4067 errs.append("health item '%s' has invalid status '%s'" %
4070 if self.op.command == constants.OOB_POWER_STATUS:
4071 if not isinstance(result.payload, dict):
4072 errs.append("power-status is expected to return a dict but got %s" %
4073 type(result.payload))
4075 if self.op.command in [
4076 constants.OOB_POWER_ON,
4077 constants.OOB_POWER_OFF,
4078 constants.OOB_POWER_CYCLE,
4080 if result.payload is not None:
4081 errs.append("%s is expected to not return payload but got '%s'" %
4082 (self.op.command, result.payload))
4085 raise errors.OpExecError("Check of out-of-band payload failed due to %s" %
4086 utils.CommaJoin(errs))
4088 class _OsQuery(_QueryBase):
4089 FIELDS = query.OS_FIELDS
4091 def ExpandNames(self, lu):
4092 # Lock all nodes in shared mode
4093 # Temporary removal of locks, should be reverted later
4094 # TODO: reintroduce locks when they are lighter-weight
4095 lu.needed_locks = {}
4096 #self.share_locks[locking.LEVEL_NODE] = 1
4097 #self.needed_locks[locking.LEVEL_NODE] = locking.ALL_SET
4099 # The following variables interact with _QueryBase._GetNames
4101 self.wanted = self.names
4103 self.wanted = locking.ALL_SET
4105 self.do_locking = self.use_locking
4107 def DeclareLocks(self, lu, level):
4111 def _DiagnoseByOS(rlist):
4112 """Remaps a per-node return list into an a per-os per-node dictionary
4114 @param rlist: a map with node names as keys and OS objects as values
4117 @return: a dictionary with osnames as keys and as value another
4118 map, with nodes as keys and tuples of (path, status, diagnose,
4119 variants, parameters, api_versions) as values, eg::
4121 {"debian-etch": {"node1": [(/usr/lib/..., True, "", [], []),
4122 (/srv/..., False, "invalid api")],
4123 "node2": [(/srv/..., True, "", [], [])]}
4128 # we build here the list of nodes that didn't fail the RPC (at RPC
4129 # level), so that nodes with a non-responding node daemon don't
4130 # make all OSes invalid
4131 good_nodes = [node_name for node_name in rlist
4132 if not rlist[node_name].fail_msg]
4133 for node_name, nr in rlist.items():
4134 if nr.fail_msg or not nr.payload:
4136 for (name, path, status, diagnose, variants,
4137 params, api_versions) in nr.payload:
4138 if name not in all_os:
4139 # build a list of nodes for this os containing empty lists
4140 # for each node in node_list
4142 for nname in good_nodes:
4143 all_os[name][nname] = []
4144 # convert params from [name, help] to (name, help)
4145 params = [tuple(v) for v in params]
4146 all_os[name][node_name].append((path, status, diagnose,
4147 variants, params, api_versions))
4150 def _GetQueryData(self, lu):
4151 """Computes the list of nodes and their attributes.
4154 # Locking is not used
4155 assert not (compat.any(lu.glm.is_owned(level)
4156 for level in locking.LEVELS
4157 if level != locking.LEVEL_CLUSTER) or
4158 self.do_locking or self.use_locking)
4160 valid_nodes = [node.name
4161 for node in lu.cfg.GetAllNodesInfo().values()
4162 if not node.offline and node.vm_capable]
4163 pol = self._DiagnoseByOS(lu.rpc.call_os_diagnose(valid_nodes))
4164 cluster = lu.cfg.GetClusterInfo()
4168 for (os_name, os_data) in pol.items():
4169 info = query.OsInfo(name=os_name, valid=True, node_status=os_data,
4170 hidden=(os_name in cluster.hidden_os),
4171 blacklisted=(os_name in cluster.blacklisted_os))
4175 api_versions = set()
4177 for idx, osl in enumerate(os_data.values()):
4178 info.valid = bool(info.valid and osl and osl[0][1])
4182 (node_variants, node_params, node_api) = osl[0][3:6]
4185 variants.update(node_variants)
4186 parameters.update(node_params)
4187 api_versions.update(node_api)
4189 # Filter out inconsistent values
4190 variants.intersection_update(node_variants)
4191 parameters.intersection_update(node_params)
4192 api_versions.intersection_update(node_api)
4194 info.variants = list(variants)
4195 info.parameters = list(parameters)
4196 info.api_versions = list(api_versions)
4198 data[os_name] = info
4200 # Prepare data in requested order
4201 return [data[name] for name in self._GetNames(lu, pol.keys(), None)
4205 class LUOsDiagnose(NoHooksLU):
4206 """Logical unit for OS diagnose/query.
4212 def _BuildFilter(fields, names):
4213 """Builds a filter for querying OSes.
4216 name_filter = qlang.MakeSimpleFilter("name", names)
4218 # Legacy behaviour: Hide hidden, blacklisted or invalid OSes if the
4219 # respective field is not requested
4220 status_filter = [[qlang.OP_NOT, [qlang.OP_TRUE, fname]]
4221 for fname in ["hidden", "blacklisted"]
4222 if fname not in fields]
4223 if "valid" not in fields:
4224 status_filter.append([qlang.OP_TRUE, "valid"])
4227 status_filter.insert(0, qlang.OP_AND)
4229 status_filter = None
4231 if name_filter and status_filter:
4232 return [qlang.OP_AND, name_filter, status_filter]
4236 return status_filter
4238 def CheckArguments(self):
4239 self.oq = _OsQuery(self._BuildFilter(self.op.output_fields, self.op.names),
4240 self.op.output_fields, False)
4242 def ExpandNames(self):
4243 self.oq.ExpandNames(self)
4245 def Exec(self, feedback_fn):
4246 return self.oq.OldStyleQuery(self)
4249 class LUNodeRemove(LogicalUnit):
4250 """Logical unit for removing a node.
4253 HPATH = "node-remove"
4254 HTYPE = constants.HTYPE_NODE
4256 def BuildHooksEnv(self):
4259 This doesn't run on the target node in the pre phase as a failed
4260 node would then be impossible to remove.
4264 "OP_TARGET": self.op.node_name,
4265 "NODE_NAME": self.op.node_name,
4268 def BuildHooksNodes(self):
4269 """Build hooks nodes.
4272 all_nodes = self.cfg.GetNodeList()
4274 all_nodes.remove(self.op.node_name)
4276 logging.warning("Node '%s', which is about to be removed, was not found"
4277 " in the list of all nodes", self.op.node_name)
4278 return (all_nodes, all_nodes)
4280 def CheckPrereq(self):
4281 """Check prerequisites.
4284 - the node exists in the configuration
4285 - it does not have primary or secondary instances
4286 - it's not the master
4288 Any errors are signaled by raising errors.OpPrereqError.
4291 self.op.node_name = _ExpandNodeName(self.cfg, self.op.node_name)
4292 node = self.cfg.GetNodeInfo(self.op.node_name)
4293 assert node is not None
4295 masternode = self.cfg.GetMasterNode()
4296 if node.name == masternode:
4297 raise errors.OpPrereqError("Node is the master node, failover to another"
4298 " node is required", errors.ECODE_INVAL)
4300 for instance_name, instance in self.cfg.GetAllInstancesInfo():
4301 if node.name in instance.all_nodes:
4302 raise errors.OpPrereqError("Instance %s is still running on the node,"
4303 " please remove first" % instance_name,
4305 self.op.node_name = node.name
4308 def Exec(self, feedback_fn):
4309 """Removes the node from the cluster.
4313 logging.info("Stopping the node daemon and removing configs from node %s",
4316 modify_ssh_setup = self.cfg.GetClusterInfo().modify_ssh_setup
4318 # Promote nodes to master candidate as needed
4319 _AdjustCandidatePool(self, exceptions=[node.name])
4320 self.context.RemoveNode(node.name)
4322 # Run post hooks on the node before it's removed
4323 _RunPostHook(self, node.name)
4325 result = self.rpc.call_node_leave_cluster(node.name, modify_ssh_setup)
4326 msg = result.fail_msg
4328 self.LogWarning("Errors encountered on the remote node while leaving"
4329 " the cluster: %s", msg)
4331 # Remove node from our /etc/hosts
4332 if self.cfg.GetClusterInfo().modify_etc_hosts:
4333 master_node = self.cfg.GetMasterNode()
4334 result = self.rpc.call_etc_hosts_modify(master_node,
4335 constants.ETC_HOSTS_REMOVE,
4337 result.Raise("Can't update hosts file with new host data")
4338 _RedistributeAncillaryFiles(self)
4341 class _NodeQuery(_QueryBase):
4342 FIELDS = query.NODE_FIELDS
4344 def ExpandNames(self, lu):
4345 lu.needed_locks = {}
4346 lu.share_locks = _ShareAll()
4349 self.wanted = _GetWantedNodes(lu, self.names)
4351 self.wanted = locking.ALL_SET
4353 self.do_locking = (self.use_locking and
4354 query.NQ_LIVE in self.requested_data)
4357 # If any non-static field is requested we need to lock the nodes
4358 lu.needed_locks[locking.LEVEL_NODE] = self.wanted
4360 def DeclareLocks(self, lu, level):
4363 def _GetQueryData(self, lu):
4364 """Computes the list of nodes and their attributes.
4367 all_info = lu.cfg.GetAllNodesInfo()
4369 nodenames = self._GetNames(lu, all_info.keys(), locking.LEVEL_NODE)
4371 # Gather data as requested
4372 if query.NQ_LIVE in self.requested_data:
4373 # filter out non-vm_capable nodes
4374 toquery_nodes = [name for name in nodenames if all_info[name].vm_capable]
4376 node_data = lu.rpc.call_node_info(toquery_nodes, lu.cfg.GetVGName(),
4377 lu.cfg.GetHypervisorType())
4378 live_data = dict((name, nresult.payload)
4379 for (name, nresult) in node_data.items()
4380 if not nresult.fail_msg and nresult.payload)
4384 if query.NQ_INST in self.requested_data:
4385 node_to_primary = dict([(name, set()) for name in nodenames])
4386 node_to_secondary = dict([(name, set()) for name in nodenames])
4388 inst_data = lu.cfg.GetAllInstancesInfo()
4390 for inst in inst_data.values():
4391 if inst.primary_node in node_to_primary:
4392 node_to_primary[inst.primary_node].add(inst.name)
4393 for secnode in inst.secondary_nodes:
4394 if secnode in node_to_secondary:
4395 node_to_secondary[secnode].add(inst.name)
4397 node_to_primary = None
4398 node_to_secondary = None
4400 if query.NQ_OOB in self.requested_data:
4401 oob_support = dict((name, bool(_SupportsOob(lu.cfg, node)))
4402 for name, node in all_info.iteritems())
4406 if query.NQ_GROUP in self.requested_data:
4407 groups = lu.cfg.GetAllNodeGroupsInfo()
4411 return query.NodeQueryData([all_info[name] for name in nodenames],
4412 live_data, lu.cfg.GetMasterNode(),
4413 node_to_primary, node_to_secondary, groups,
4414 oob_support, lu.cfg.GetClusterInfo())
4417 class LUNodeQuery(NoHooksLU):
4418 """Logical unit for querying nodes.
4421 # pylint: disable-msg=W0142
4424 def CheckArguments(self):
4425 self.nq = _NodeQuery(qlang.MakeSimpleFilter("name", self.op.names),
4426 self.op.output_fields, self.op.use_locking)
4428 def ExpandNames(self):
4429 self.nq.ExpandNames(self)
4431 def Exec(self, feedback_fn):
4432 return self.nq.OldStyleQuery(self)
4435 class LUNodeQueryvols(NoHooksLU):
4436 """Logical unit for getting volumes on node(s).
4440 _FIELDS_DYNAMIC = utils.FieldSet("phys", "vg", "name", "size", "instance")
4441 _FIELDS_STATIC = utils.FieldSet("node")
4443 def CheckArguments(self):
4444 _CheckOutputFields(static=self._FIELDS_STATIC,
4445 dynamic=self._FIELDS_DYNAMIC,
4446 selected=self.op.output_fields)
4448 def ExpandNames(self):
4449 self.needed_locks = {}
4450 self.share_locks[locking.LEVEL_NODE] = 1
4451 if not self.op.nodes:
4452 self.needed_locks[locking.LEVEL_NODE] = locking.ALL_SET
4454 self.needed_locks[locking.LEVEL_NODE] = \
4455 _GetWantedNodes(self, self.op.nodes)
4457 def Exec(self, feedback_fn):
4458 """Computes the list of nodes and their attributes.
4461 nodenames = self.owned_locks(locking.LEVEL_NODE)
4462 volumes = self.rpc.call_node_volumes(nodenames)
4464 ilist = self.cfg.GetAllInstancesInfo()
4465 vol2inst = _MapInstanceDisksToNodes(ilist.values())
4468 for node in nodenames:
4469 nresult = volumes[node]
4472 msg = nresult.fail_msg
4474 self.LogWarning("Can't compute volume data on node %s: %s", node, msg)
4477 node_vols = sorted(nresult.payload,
4478 key=operator.itemgetter("dev"))
4480 for vol in node_vols:
4482 for field in self.op.output_fields:
4485 elif field == "phys":
4489 elif field == "name":
4491 elif field == "size":
4492 val = int(float(vol["size"]))
4493 elif field == "instance":
4494 val = vol2inst.get((node, vol["vg"] + "/" + vol["name"]), "-")
4496 raise errors.ParameterError(field)
4497 node_output.append(str(val))
4499 output.append(node_output)
4504 class LUNodeQueryStorage(NoHooksLU):
4505 """Logical unit for getting information on storage units on node(s).
4508 _FIELDS_STATIC = utils.FieldSet(constants.SF_NODE)
4511 def CheckArguments(self):
4512 _CheckOutputFields(static=self._FIELDS_STATIC,
4513 dynamic=utils.FieldSet(*constants.VALID_STORAGE_FIELDS),
4514 selected=self.op.output_fields)
4516 def ExpandNames(self):
4517 self.needed_locks = {}
4518 self.share_locks[locking.LEVEL_NODE] = 1
4521 self.needed_locks[locking.LEVEL_NODE] = \
4522 _GetWantedNodes(self, self.op.nodes)
4524 self.needed_locks[locking.LEVEL_NODE] = locking.ALL_SET
4526 def Exec(self, feedback_fn):
4527 """Computes the list of nodes and their attributes.
4530 self.nodes = self.owned_locks(locking.LEVEL_NODE)
4532 # Always get name to sort by
4533 if constants.SF_NAME in self.op.output_fields:
4534 fields = self.op.output_fields[:]
4536 fields = [constants.SF_NAME] + self.op.output_fields
4538 # Never ask for node or type as it's only known to the LU
4539 for extra in [constants.SF_NODE, constants.SF_TYPE]:
4540 while extra in fields:
4541 fields.remove(extra)
4543 field_idx = dict([(name, idx) for (idx, name) in enumerate(fields)])
4544 name_idx = field_idx[constants.SF_NAME]
4546 st_args = _GetStorageTypeArgs(self.cfg, self.op.storage_type)
4547 data = self.rpc.call_storage_list(self.nodes,
4548 self.op.storage_type, st_args,
4549 self.op.name, fields)
4553 for node in utils.NiceSort(self.nodes):
4554 nresult = data[node]
4558 msg = nresult.fail_msg
4560 self.LogWarning("Can't get storage data from node %s: %s", node, msg)
4563 rows = dict([(row[name_idx], row) for row in nresult.payload])
4565 for name in utils.NiceSort(rows.keys()):
4570 for field in self.op.output_fields:
4571 if field == constants.SF_NODE:
4573 elif field == constants.SF_TYPE:
4574 val = self.op.storage_type
4575 elif field in field_idx:
4576 val = row[field_idx[field]]
4578 raise errors.ParameterError(field)
4587 class _InstanceQuery(_QueryBase):
4588 FIELDS = query.INSTANCE_FIELDS
4590 def ExpandNames(self, lu):
4591 lu.needed_locks = {}
4592 lu.share_locks = _ShareAll()
4595 self.wanted = _GetWantedInstances(lu, self.names)
4597 self.wanted = locking.ALL_SET
4599 self.do_locking = (self.use_locking and
4600 query.IQ_LIVE in self.requested_data)
4602 lu.needed_locks[locking.LEVEL_INSTANCE] = self.wanted
4603 lu.needed_locks[locking.LEVEL_NODEGROUP] = []
4604 lu.needed_locks[locking.LEVEL_NODE] = []
4605 lu.recalculate_locks[locking.LEVEL_NODE] = constants.LOCKS_REPLACE
4607 self.do_grouplocks = (self.do_locking and
4608 query.IQ_NODES in self.requested_data)
4610 def DeclareLocks(self, lu, level):
4612 if level == locking.LEVEL_NODEGROUP and self.do_grouplocks:
4613 assert not lu.needed_locks[locking.LEVEL_NODEGROUP]
4615 # Lock all groups used by instances optimistically; this requires going
4616 # via the node before it's locked, requiring verification later on
4617 lu.needed_locks[locking.LEVEL_NODEGROUP] = \
4619 for instance_name in lu.owned_locks(locking.LEVEL_INSTANCE)
4620 for group_uuid in lu.cfg.GetInstanceNodeGroups(instance_name))
4621 elif level == locking.LEVEL_NODE:
4622 lu._LockInstancesNodes() # pylint: disable-msg=W0212
4625 def _CheckGroupLocks(lu):
4626 owned_instances = frozenset(lu.owned_locks(locking.LEVEL_INSTANCE))
4627 owned_groups = frozenset(lu.owned_locks(locking.LEVEL_NODEGROUP))
4629 # Check if node groups for locked instances are still correct
4630 for instance_name in owned_instances:
4631 _CheckInstanceNodeGroups(lu.cfg, instance_name, owned_groups)
4633 def _GetQueryData(self, lu):
4634 """Computes the list of instances and their attributes.
4637 if self.do_grouplocks:
4638 self._CheckGroupLocks(lu)
4640 cluster = lu.cfg.GetClusterInfo()
4641 all_info = lu.cfg.GetAllInstancesInfo()
4643 instance_names = self._GetNames(lu, all_info.keys(), locking.LEVEL_INSTANCE)
4645 instance_list = [all_info[name] for name in instance_names]
4646 nodes = frozenset(itertools.chain(*(inst.all_nodes
4647 for inst in instance_list)))
4648 hv_list = list(set([inst.hypervisor for inst in instance_list]))
4651 wrongnode_inst = set()
4653 # Gather data as requested
4654 if self.requested_data & set([query.IQ_LIVE, query.IQ_CONSOLE]):
4656 node_data = lu.rpc.call_all_instances_info(nodes, hv_list)
4658 result = node_data[name]
4660 # offline nodes will be in both lists
4661 assert result.fail_msg
4662 offline_nodes.append(name)
4664 bad_nodes.append(name)
4665 elif result.payload:
4666 for inst in result.payload:
4667 if inst in all_info:
4668 if all_info[inst].primary_node == name:
4669 live_data.update(result.payload)
4671 wrongnode_inst.add(inst)
4673 # orphan instance; we don't list it here as we don't
4674 # handle this case yet in the output of instance listing
4675 logging.warning("Orphan instance '%s' found on node %s",
4677 # else no instance is alive
4681 if query.IQ_DISKUSAGE in self.requested_data:
4682 disk_usage = dict((inst.name,
4683 _ComputeDiskSize(inst.disk_template,
4684 [{constants.IDISK_SIZE: disk.size}
4685 for disk in inst.disks]))
4686 for inst in instance_list)
4690 if query.IQ_CONSOLE in self.requested_data:
4692 for inst in instance_list:
4693 if inst.name in live_data:
4694 # Instance is running
4695 consinfo[inst.name] = _GetInstanceConsole(cluster, inst)
4697 consinfo[inst.name] = None
4698 assert set(consinfo.keys()) == set(instance_names)
4702 if query.IQ_NODES in self.requested_data:
4703 node_names = set(itertools.chain(*map(operator.attrgetter("all_nodes"),
4705 nodes = dict(lu.cfg.GetMultiNodeInfo(node_names))
4706 groups = dict((uuid, lu.cfg.GetNodeGroup(uuid))
4707 for uuid in set(map(operator.attrgetter("group"),
4713 return query.InstanceQueryData(instance_list, lu.cfg.GetClusterInfo(),
4714 disk_usage, offline_nodes, bad_nodes,
4715 live_data, wrongnode_inst, consinfo,
4719 class LUQuery(NoHooksLU):
4720 """Query for resources/items of a certain kind.
4723 # pylint: disable-msg=W0142
4726 def CheckArguments(self):
4727 qcls = _GetQueryImplementation(self.op.what)
4729 self.impl = qcls(self.op.filter, self.op.fields, self.op.use_locking)
4731 def ExpandNames(self):
4732 self.impl.ExpandNames(self)
4734 def DeclareLocks(self, level):
4735 self.impl.DeclareLocks(self, level)
4737 def Exec(self, feedback_fn):
4738 return self.impl.NewStyleQuery(self)
4741 class LUQueryFields(NoHooksLU):
4742 """Query for resources/items of a certain kind.
4745 # pylint: disable-msg=W0142
4748 def CheckArguments(self):
4749 self.qcls = _GetQueryImplementation(self.op.what)
4751 def ExpandNames(self):
4752 self.needed_locks = {}
4754 def Exec(self, feedback_fn):
4755 return query.QueryFields(self.qcls.FIELDS, self.op.fields)
4758 class LUNodeModifyStorage(NoHooksLU):
4759 """Logical unit for modifying a storage volume on a node.
4764 def CheckArguments(self):
4765 self.op.node_name = _ExpandNodeName(self.cfg, self.op.node_name)
4767 storage_type = self.op.storage_type
4770 modifiable = constants.MODIFIABLE_STORAGE_FIELDS[storage_type]
4772 raise errors.OpPrereqError("Storage units of type '%s' can not be"
4773 " modified" % storage_type,
4776 diff = set(self.op.changes.keys()) - modifiable
4778 raise errors.OpPrereqError("The following fields can not be modified for"
4779 " storage units of type '%s': %r" %
4780 (storage_type, list(diff)),
4783 def ExpandNames(self):
4784 self.needed_locks = {
4785 locking.LEVEL_NODE: self.op.node_name,
4788 def Exec(self, feedback_fn):
4789 """Computes the list of nodes and their attributes.
4792 st_args = _GetStorageTypeArgs(self.cfg, self.op.storage_type)
4793 result = self.rpc.call_storage_modify(self.op.node_name,
4794 self.op.storage_type, st_args,
4795 self.op.name, self.op.changes)
4796 result.Raise("Failed to modify storage unit '%s' on %s" %
4797 (self.op.name, self.op.node_name))
4800 class LUNodeAdd(LogicalUnit):
4801 """Logical unit for adding node to the cluster.
4805 HTYPE = constants.HTYPE_NODE
4806 _NFLAGS = ["master_capable", "vm_capable"]
4808 def CheckArguments(self):
4809 self.primary_ip_family = self.cfg.GetPrimaryIPFamily()
4810 # validate/normalize the node name
4811 self.hostname = netutils.GetHostname(name=self.op.node_name,
4812 family=self.primary_ip_family)
4813 self.op.node_name = self.hostname.name
4815 if self.op.readd and self.op.node_name == self.cfg.GetMasterNode():
4816 raise errors.OpPrereqError("Cannot readd the master node",
4819 if self.op.readd and self.op.group:
4820 raise errors.OpPrereqError("Cannot pass a node group when a node is"
4821 " being readded", errors.ECODE_INVAL)
4823 def BuildHooksEnv(self):
4826 This will run on all nodes before, and on all nodes + the new node after.
4830 "OP_TARGET": self.op.node_name,
4831 "NODE_NAME": self.op.node_name,
4832 "NODE_PIP": self.op.primary_ip,
4833 "NODE_SIP": self.op.secondary_ip,
4834 "MASTER_CAPABLE": str(self.op.master_capable),
4835 "VM_CAPABLE": str(self.op.vm_capable),
4838 def BuildHooksNodes(self):
4839 """Build hooks nodes.
4842 # Exclude added node
4843 pre_nodes = list(set(self.cfg.GetNodeList()) - set([self.op.node_name]))
4844 post_nodes = pre_nodes + [self.op.node_name, ]
4846 return (pre_nodes, post_nodes)
4848 def CheckPrereq(self):
4849 """Check prerequisites.
4852 - the new node is not already in the config
4854 - its parameters (single/dual homed) matches the cluster
4856 Any errors are signaled by raising errors.OpPrereqError.
4860 hostname = self.hostname
4861 node = hostname.name
4862 primary_ip = self.op.primary_ip = hostname.ip
4863 if self.op.secondary_ip is None:
4864 if self.primary_ip_family == netutils.IP6Address.family:
4865 raise errors.OpPrereqError("When using a IPv6 primary address, a valid"
4866 " IPv4 address must be given as secondary",
4868 self.op.secondary_ip = primary_ip
4870 secondary_ip = self.op.secondary_ip
4871 if not netutils.IP4Address.IsValid(secondary_ip):
4872 raise errors.OpPrereqError("Secondary IP (%s) needs to be a valid IPv4"
4873 " address" % secondary_ip, errors.ECODE_INVAL)
4875 node_list = cfg.GetNodeList()
4876 if not self.op.readd and node in node_list:
4877 raise errors.OpPrereqError("Node %s is already in the configuration" %
4878 node, errors.ECODE_EXISTS)
4879 elif self.op.readd and node not in node_list:
4880 raise errors.OpPrereqError("Node %s is not in the configuration" % node,
4883 self.changed_primary_ip = False
4885 for existing_node_name, existing_node in cfg.GetMultiNodeInfo(node_list):
4886 if self.op.readd and node == existing_node_name:
4887 if existing_node.secondary_ip != secondary_ip:
4888 raise errors.OpPrereqError("Readded node doesn't have the same IP"
4889 " address configuration as before",
4891 if existing_node.primary_ip != primary_ip:
4892 self.changed_primary_ip = True
4896 if (existing_node.primary_ip == primary_ip or
4897 existing_node.secondary_ip == primary_ip or
4898 existing_node.primary_ip == secondary_ip or
4899 existing_node.secondary_ip == secondary_ip):
4900 raise errors.OpPrereqError("New node ip address(es) conflict with"
4901 " existing node %s" % existing_node.name,
4902 errors.ECODE_NOTUNIQUE)
4904 # After this 'if' block, None is no longer a valid value for the
4905 # _capable op attributes
4907 old_node = self.cfg.GetNodeInfo(node)
4908 assert old_node is not None, "Can't retrieve locked node %s" % node
4909 for attr in self._NFLAGS:
4910 if getattr(self.op, attr) is None:
4911 setattr(self.op, attr, getattr(old_node, attr))
4913 for attr in self._NFLAGS:
4914 if getattr(self.op, attr) is None:
4915 setattr(self.op, attr, True)
4917 if self.op.readd and not self.op.vm_capable:
4918 pri, sec = cfg.GetNodeInstances(node)
4920 raise errors.OpPrereqError("Node %s being re-added with vm_capable"
4921 " flag set to false, but it already holds"
4922 " instances" % node,
4925 # check that the type of the node (single versus dual homed) is the
4926 # same as for the master
4927 myself = cfg.GetNodeInfo(self.cfg.GetMasterNode())
4928 master_singlehomed = myself.secondary_ip == myself.primary_ip
4929 newbie_singlehomed = secondary_ip == primary_ip
4930 if master_singlehomed != newbie_singlehomed:
4931 if master_singlehomed:
4932 raise errors.OpPrereqError("The master has no secondary ip but the"
4933 " new node has one",
4936 raise errors.OpPrereqError("The master has a secondary ip but the"
4937 " new node doesn't have one",
4940 # checks reachability
4941 if not netutils.TcpPing(primary_ip, constants.DEFAULT_NODED_PORT):
4942 raise errors.OpPrereqError("Node not reachable by ping",
4943 errors.ECODE_ENVIRON)
4945 if not newbie_singlehomed:
4946 # check reachability from my secondary ip to newbie's secondary ip
4947 if not netutils.TcpPing(secondary_ip, constants.DEFAULT_NODED_PORT,
4948 source=myself.secondary_ip):
4949 raise errors.OpPrereqError("Node secondary ip not reachable by TCP"
4950 " based ping to node daemon port",
4951 errors.ECODE_ENVIRON)
4958 if self.op.master_capable:
4959 self.master_candidate = _DecideSelfPromotion(self, exceptions=exceptions)
4961 self.master_candidate = False
4964 self.new_node = old_node
4966 node_group = cfg.LookupNodeGroup(self.op.group)
4967 self.new_node = objects.Node(name=node,
4968 primary_ip=primary_ip,
4969 secondary_ip=secondary_ip,
4970 master_candidate=self.master_candidate,
4971 offline=False, drained=False,
4974 if self.op.ndparams:
4975 utils.ForceDictType(self.op.ndparams, constants.NDS_PARAMETER_TYPES)
4977 def Exec(self, feedback_fn):
4978 """Adds the new node to the cluster.
4981 new_node = self.new_node
4982 node = new_node.name
4984 # We adding a new node so we assume it's powered
4985 new_node.powered = True
4987 # for re-adds, reset the offline/drained/master-candidate flags;
4988 # we need to reset here, otherwise offline would prevent RPC calls
4989 # later in the procedure; this also means that if the re-add
4990 # fails, we are left with a non-offlined, broken node
4992 new_node.drained = new_node.offline = False # pylint: disable-msg=W0201
4993 self.LogInfo("Readding a node, the offline/drained flags were reset")
4994 # if we demote the node, we do cleanup later in the procedure
4995 new_node.master_candidate = self.master_candidate
4996 if self.changed_primary_ip:
4997 new_node.primary_ip = self.op.primary_ip
4999 # copy the master/vm_capable flags
5000 for attr in self._NFLAGS:
5001 setattr(new_node, attr, getattr(self.op, attr))
5003 # notify the user about any possible mc promotion
5004 if new_node.master_candidate:
5005 self.LogInfo("Node will be a master candidate")
5007 if self.op.ndparams:
5008 new_node.ndparams = self.op.ndparams
5010 new_node.ndparams = {}
5012 # check connectivity
5013 result = self.rpc.call_version([node])[node]
5014 result.Raise("Can't get version information from node %s" % node)
5015 if constants.PROTOCOL_VERSION == result.payload:
5016 logging.info("Communication to node %s fine, sw version %s match",
5017 node, result.payload)
5019 raise errors.OpExecError("Version mismatch master version %s,"
5020 " node version %s" %
5021 (constants.PROTOCOL_VERSION, result.payload))
5023 # Add node to our /etc/hosts, and add key to known_hosts
5024 if self.cfg.GetClusterInfo().modify_etc_hosts:
5025 master_node = self.cfg.GetMasterNode()
5026 result = self.rpc.call_etc_hosts_modify(master_node,
5027 constants.ETC_HOSTS_ADD,
5030 result.Raise("Can't update hosts file with new host data")
5032 if new_node.secondary_ip != new_node.primary_ip:
5033 _CheckNodeHasSecondaryIP(self, new_node.name, new_node.secondary_ip,
5036 node_verify_list = [self.cfg.GetMasterNode()]
5037 node_verify_param = {
5038 constants.NV_NODELIST: [node],
5039 # TODO: do a node-net-test as well?
5042 result = self.rpc.call_node_verify(node_verify_list, node_verify_param,
5043 self.cfg.GetClusterName())
5044 for verifier in node_verify_list:
5045 result[verifier].Raise("Cannot communicate with node %s" % verifier)
5046 nl_payload = result[verifier].payload[constants.NV_NODELIST]
5048 for failed in nl_payload:
5049 feedback_fn("ssh/hostname verification failed"
5050 " (checking from %s): %s" %
5051 (verifier, nl_payload[failed]))
5052 raise errors.OpExecError("ssh/hostname verification failed")
5055 _RedistributeAncillaryFiles(self)
5056 self.context.ReaddNode(new_node)
5057 # make sure we redistribute the config
5058 self.cfg.Update(new_node, feedback_fn)
5059 # and make sure the new node will not have old files around
5060 if not new_node.master_candidate:
5061 result = self.rpc.call_node_demote_from_mc(new_node.name)
5062 msg = result.fail_msg
5064 self.LogWarning("Node failed to demote itself from master"
5065 " candidate status: %s" % msg)
5067 _RedistributeAncillaryFiles(self, additional_nodes=[node],
5068 additional_vm=self.op.vm_capable)
5069 self.context.AddNode(new_node, self.proc.GetECId())
5072 class LUNodeSetParams(LogicalUnit):
5073 """Modifies the parameters of a node.
5075 @cvar _F2R: a dictionary from tuples of flags (mc, drained, offline)
5076 to the node role (as _ROLE_*)
5077 @cvar _R2F: a dictionary from node role to tuples of flags
5078 @cvar _FLAGS: a list of attribute names corresponding to the flags
5081 HPATH = "node-modify"
5082 HTYPE = constants.HTYPE_NODE
5084 (_ROLE_CANDIDATE, _ROLE_DRAINED, _ROLE_OFFLINE, _ROLE_REGULAR) = range(4)
5086 (True, False, False): _ROLE_CANDIDATE,
5087 (False, True, False): _ROLE_DRAINED,
5088 (False, False, True): _ROLE_OFFLINE,
5089 (False, False, False): _ROLE_REGULAR,
5091 _R2F = dict((v, k) for k, v in _F2R.items())
5092 _FLAGS = ["master_candidate", "drained", "offline"]
5094 def CheckArguments(self):
5095 self.op.node_name = _ExpandNodeName(self.cfg, self.op.node_name)
5096 all_mods = [self.op.offline, self.op.master_candidate, self.op.drained,
5097 self.op.master_capable, self.op.vm_capable,
5098 self.op.secondary_ip, self.op.ndparams]
5099 if all_mods.count(None) == len(all_mods):
5100 raise errors.OpPrereqError("Please pass at least one modification",
5102 if all_mods.count(True) > 1:
5103 raise errors.OpPrereqError("Can't set the node into more than one"
5104 " state at the same time",
5107 # Boolean value that tells us whether we might be demoting from MC
5108 self.might_demote = (self.op.master_candidate == False or
5109 self.op.offline == True or
5110 self.op.drained == True or
5111 self.op.master_capable == False)
5113 if self.op.secondary_ip:
5114 if not netutils.IP4Address.IsValid(self.op.secondary_ip):
5115 raise errors.OpPrereqError("Secondary IP (%s) needs to be a valid IPv4"
5116 " address" % self.op.secondary_ip,
5119 self.lock_all = self.op.auto_promote and self.might_demote
5120 self.lock_instances = self.op.secondary_ip is not None
5122 def ExpandNames(self):
5124 self.needed_locks = {locking.LEVEL_NODE: locking.ALL_SET}
5126 self.needed_locks = {locking.LEVEL_NODE: self.op.node_name}
5128 if self.lock_instances:
5129 self.needed_locks[locking.LEVEL_INSTANCE] = locking.ALL_SET
5131 def DeclareLocks(self, level):
5132 # If we have locked all instances, before waiting to lock nodes, release
5133 # all the ones living on nodes unrelated to the current operation.
5134 if level == locking.LEVEL_NODE and self.lock_instances:
5135 self.affected_instances = []
5136 if self.needed_locks[locking.LEVEL_NODE] is not locking.ALL_SET:
5139 # Build list of instances to release
5140 locked_i = self.owned_locks(locking.LEVEL_INSTANCE)
5141 for instance_name, instance in self.cfg.GetMultiInstanceInfo(locked_i):
5142 if (instance.disk_template in constants.DTS_INT_MIRROR and
5143 self.op.node_name in instance.all_nodes):
5144 instances_keep.append(instance_name)
5145 self.affected_instances.append(instance)
5147 _ReleaseLocks(self, locking.LEVEL_INSTANCE, keep=instances_keep)
5149 assert (set(self.owned_locks(locking.LEVEL_INSTANCE)) ==
5150 set(instances_keep))
5152 def BuildHooksEnv(self):
5155 This runs on the master node.
5159 "OP_TARGET": self.op.node_name,
5160 "MASTER_CANDIDATE": str(self.op.master_candidate),
5161 "OFFLINE": str(self.op.offline),
5162 "DRAINED": str(self.op.drained),
5163 "MASTER_CAPABLE": str(self.op.master_capable),
5164 "VM_CAPABLE": str(self.op.vm_capable),
5167 def BuildHooksNodes(self):
5168 """Build hooks nodes.
5171 nl = [self.cfg.GetMasterNode(), self.op.node_name]
5174 def CheckPrereq(self):
5175 """Check prerequisites.
5177 This only checks the instance list against the existing names.
5180 node = self.node = self.cfg.GetNodeInfo(self.op.node_name)
5182 if (self.op.master_candidate is not None or
5183 self.op.drained is not None or
5184 self.op.offline is not None):
5185 # we can't change the master's node flags
5186 if self.op.node_name == self.cfg.GetMasterNode():
5187 raise errors.OpPrereqError("The master role can be changed"
5188 " only via master-failover",
5191 if self.op.master_candidate and not node.master_capable:
5192 raise errors.OpPrereqError("Node %s is not master capable, cannot make"
5193 " it a master candidate" % node.name,
5196 if self.op.vm_capable == False:
5197 (ipri, isec) = self.cfg.GetNodeInstances(self.op.node_name)
5199 raise errors.OpPrereqError("Node %s hosts instances, cannot unset"
5200 " the vm_capable flag" % node.name,
5203 if node.master_candidate and self.might_demote and not self.lock_all:
5204 assert not self.op.auto_promote, "auto_promote set but lock_all not"
5205 # check if after removing the current node, we're missing master
5207 (mc_remaining, mc_should, _) = \
5208 self.cfg.GetMasterCandidateStats(exceptions=[node.name])
5209 if mc_remaining < mc_should:
5210 raise errors.OpPrereqError("Not enough master candidates, please"
5211 " pass auto promote option to allow"
5212 " promotion", errors.ECODE_STATE)
5214 self.old_flags = old_flags = (node.master_candidate,
5215 node.drained, node.offline)
5216 assert old_flags in self._F2R, "Un-handled old flags %s" % str(old_flags)
5217 self.old_role = old_role = self._F2R[old_flags]
5219 # Check for ineffective changes
5220 for attr in self._FLAGS:
5221 if (getattr(self.op, attr) == False and getattr(node, attr) == False):
5222 self.LogInfo("Ignoring request to unset flag %s, already unset", attr)
5223 setattr(self.op, attr, None)
5225 # Past this point, any flag change to False means a transition
5226 # away from the respective state, as only real changes are kept
5228 # TODO: We might query the real power state if it supports OOB
5229 if _SupportsOob(self.cfg, node):
5230 if self.op.offline is False and not (node.powered or
5231 self.op.powered == True):
5232 raise errors.OpPrereqError(("Node %s needs to be turned on before its"
5233 " offline status can be reset") %
5235 elif self.op.powered is not None:
5236 raise errors.OpPrereqError(("Unable to change powered state for node %s"
5237 " as it does not support out-of-band"
5238 " handling") % self.op.node_name)
5240 # If we're being deofflined/drained, we'll MC ourself if needed
5241 if (self.op.drained == False or self.op.offline == False or
5242 (self.op.master_capable and not node.master_capable)):
5243 if _DecideSelfPromotion(self):
5244 self.op.master_candidate = True
5245 self.LogInfo("Auto-promoting node to master candidate")
5247 # If we're no longer master capable, we'll demote ourselves from MC
5248 if self.op.master_capable == False and node.master_candidate:
5249 self.LogInfo("Demoting from master candidate")
5250 self.op.master_candidate = False
5253 assert [getattr(self.op, attr) for attr in self._FLAGS].count(True) <= 1
5254 if self.op.master_candidate:
5255 new_role = self._ROLE_CANDIDATE
5256 elif self.op.drained:
5257 new_role = self._ROLE_DRAINED
5258 elif self.op.offline:
5259 new_role = self._ROLE_OFFLINE
5260 elif False in [self.op.master_candidate, self.op.drained, self.op.offline]:
5261 # False is still in new flags, which means we're un-setting (the
5263 new_role = self._ROLE_REGULAR
5264 else: # no new flags, nothing, keep old role
5267 self.new_role = new_role
5269 if old_role == self._ROLE_OFFLINE and new_role != old_role:
5270 # Trying to transition out of offline status
5271 result = self.rpc.call_version([node.name])[node.name]
5273 raise errors.OpPrereqError("Node %s is being de-offlined but fails"
5274 " to report its version: %s" %
5275 (node.name, result.fail_msg),
5278 self.LogWarning("Transitioning node from offline to online state"
5279 " without using re-add. Please make sure the node"
5282 if self.op.secondary_ip:
5283 # Ok even without locking, because this can't be changed by any LU
5284 master = self.cfg.GetNodeInfo(self.cfg.GetMasterNode())
5285 master_singlehomed = master.secondary_ip == master.primary_ip
5286 if master_singlehomed and self.op.secondary_ip:
5287 raise errors.OpPrereqError("Cannot change the secondary ip on a single"
5288 " homed cluster", errors.ECODE_INVAL)
5291 if self.affected_instances:
5292 raise errors.OpPrereqError("Cannot change secondary ip: offline"
5293 " node has instances (%s) configured"
5294 " to use it" % self.affected_instances)
5296 # On online nodes, check that no instances are running, and that
5297 # the node has the new ip and we can reach it.
5298 for instance in self.affected_instances:
5299 _CheckInstanceDown(self, instance, "cannot change secondary ip")
5301 _CheckNodeHasSecondaryIP(self, node.name, self.op.secondary_ip, True)
5302 if master.name != node.name:
5303 # check reachability from master secondary ip to new secondary ip
5304 if not netutils.TcpPing(self.op.secondary_ip,
5305 constants.DEFAULT_NODED_PORT,
5306 source=master.secondary_ip):
5307 raise errors.OpPrereqError("Node secondary ip not reachable by TCP"
5308 " based ping to node daemon port",
5309 errors.ECODE_ENVIRON)
5311 if self.op.ndparams:
5312 new_ndparams = _GetUpdatedParams(self.node.ndparams, self.op.ndparams)
5313 utils.ForceDictType(new_ndparams, constants.NDS_PARAMETER_TYPES)
5314 self.new_ndparams = new_ndparams
5316 def Exec(self, feedback_fn):
5321 old_role = self.old_role
5322 new_role = self.new_role
5326 if self.op.ndparams:
5327 node.ndparams = self.new_ndparams
5329 if self.op.powered is not None:
5330 node.powered = self.op.powered
5332 for attr in ["master_capable", "vm_capable"]:
5333 val = getattr(self.op, attr)
5335 setattr(node, attr, val)
5336 result.append((attr, str(val)))
5338 if new_role != old_role:
5339 # Tell the node to demote itself, if no longer MC and not offline
5340 if old_role == self._ROLE_CANDIDATE and new_role != self._ROLE_OFFLINE:
5341 msg = self.rpc.call_node_demote_from_mc(node.name).fail_msg
5343 self.LogWarning("Node failed to demote itself: %s", msg)
5345 new_flags = self._R2F[new_role]
5346 for of, nf, desc in zip(self.old_flags, new_flags, self._FLAGS):
5348 result.append((desc, str(nf)))
5349 (node.master_candidate, node.drained, node.offline) = new_flags
5351 # we locked all nodes, we adjust the CP before updating this node
5353 _AdjustCandidatePool(self, [node.name])
5355 if self.op.secondary_ip:
5356 node.secondary_ip = self.op.secondary_ip
5357 result.append(("secondary_ip", self.op.secondary_ip))
5359 # this will trigger configuration file update, if needed
5360 self.cfg.Update(node, feedback_fn)
5362 # this will trigger job queue propagation or cleanup if the mc
5364 if [old_role, new_role].count(self._ROLE_CANDIDATE) == 1:
5365 self.context.ReaddNode(node)
5370 class LUNodePowercycle(NoHooksLU):
5371 """Powercycles a node.
5376 def CheckArguments(self):
5377 self.op.node_name = _ExpandNodeName(self.cfg, self.op.node_name)
5378 if self.op.node_name == self.cfg.GetMasterNode() and not self.op.force:
5379 raise errors.OpPrereqError("The node is the master and the force"
5380 " parameter was not set",
5383 def ExpandNames(self):
5384 """Locking for PowercycleNode.
5386 This is a last-resort option and shouldn't block on other
5387 jobs. Therefore, we grab no locks.
5390 self.needed_locks = {}
5392 def Exec(self, feedback_fn):
5396 result = self.rpc.call_node_powercycle(self.op.node_name,
5397 self.cfg.GetHypervisorType())
5398 result.Raise("Failed to schedule the reboot")
5399 return result.payload
5402 class LUClusterQuery(NoHooksLU):
5403 """Query cluster configuration.
5408 def ExpandNames(self):
5409 self.needed_locks = {}
5411 def Exec(self, feedback_fn):
5412 """Return cluster config.
5415 cluster = self.cfg.GetClusterInfo()
5418 # Filter just for enabled hypervisors
5419 for os_name, hv_dict in cluster.os_hvp.items():
5420 os_hvp[os_name] = {}
5421 for hv_name, hv_params in hv_dict.items():
5422 if hv_name in cluster.enabled_hypervisors:
5423 os_hvp[os_name][hv_name] = hv_params
5425 # Convert ip_family to ip_version
5426 primary_ip_version = constants.IP4_VERSION
5427 if cluster.primary_ip_family == netutils.IP6Address.family:
5428 primary_ip_version = constants.IP6_VERSION
5431 "software_version": constants.RELEASE_VERSION,
5432 "protocol_version": constants.PROTOCOL_VERSION,
5433 "config_version": constants.CONFIG_VERSION,
5434 "os_api_version": max(constants.OS_API_VERSIONS),
5435 "export_version": constants.EXPORT_VERSION,
5436 "architecture": (platform.architecture()[0], platform.machine()),
5437 "name": cluster.cluster_name,
5438 "master": cluster.master_node,
5439 "default_hypervisor": cluster.enabled_hypervisors[0],
5440 "enabled_hypervisors": cluster.enabled_hypervisors,
5441 "hvparams": dict([(hypervisor_name, cluster.hvparams[hypervisor_name])
5442 for hypervisor_name in cluster.enabled_hypervisors]),
5444 "beparams": cluster.beparams,
5445 "osparams": cluster.osparams,
5446 "nicparams": cluster.nicparams,
5447 "ndparams": cluster.ndparams,
5448 "candidate_pool_size": cluster.candidate_pool_size,
5449 "master_netdev": cluster.master_netdev,
5450 "volume_group_name": cluster.volume_group_name,
5451 "drbd_usermode_helper": cluster.drbd_usermode_helper,
5452 "file_storage_dir": cluster.file_storage_dir,
5453 "shared_file_storage_dir": cluster.shared_file_storage_dir,
5454 "maintain_node_health": cluster.maintain_node_health,
5455 "ctime": cluster.ctime,
5456 "mtime": cluster.mtime,
5457 "uuid": cluster.uuid,
5458 "tags": list(cluster.GetTags()),
5459 "uid_pool": cluster.uid_pool,
5460 "default_iallocator": cluster.default_iallocator,
5461 "reserved_lvs": cluster.reserved_lvs,
5462 "primary_ip_version": primary_ip_version,
5463 "prealloc_wipe_disks": cluster.prealloc_wipe_disks,
5464 "hidden_os": cluster.hidden_os,
5465 "blacklisted_os": cluster.blacklisted_os,
5471 class LUClusterConfigQuery(NoHooksLU):
5472 """Return configuration values.
5476 _FIELDS_DYNAMIC = utils.FieldSet()
5477 _FIELDS_STATIC = utils.FieldSet("cluster_name", "master_node", "drain_flag",
5478 "watcher_pause", "volume_group_name")
5480 def CheckArguments(self):
5481 _CheckOutputFields(static=self._FIELDS_STATIC,
5482 dynamic=self._FIELDS_DYNAMIC,
5483 selected=self.op.output_fields)
5485 def ExpandNames(self):
5486 self.needed_locks = {}
5488 def Exec(self, feedback_fn):
5489 """Dump a representation of the cluster config to the standard output.
5493 for field in self.op.output_fields:
5494 if field == "cluster_name":
5495 entry = self.cfg.GetClusterName()
5496 elif field == "master_node":
5497 entry = self.cfg.GetMasterNode()
5498 elif field == "drain_flag":
5499 entry = os.path.exists(constants.JOB_QUEUE_DRAIN_FILE)
5500 elif field == "watcher_pause":
5501 entry = utils.ReadWatcherPauseFile(constants.WATCHER_PAUSEFILE)
5502 elif field == "volume_group_name":
5503 entry = self.cfg.GetVGName()
5505 raise errors.ParameterError(field)
5506 values.append(entry)
5510 class LUInstanceActivateDisks(NoHooksLU):
5511 """Bring up an instance's disks.
5516 def ExpandNames(self):
5517 self._ExpandAndLockInstance()
5518 self.needed_locks[locking.LEVEL_NODE] = []
5519 self.recalculate_locks[locking.LEVEL_NODE] = constants.LOCKS_REPLACE
5521 def DeclareLocks(self, level):
5522 if level == locking.LEVEL_NODE:
5523 self._LockInstancesNodes()
5525 def CheckPrereq(self):
5526 """Check prerequisites.
5528 This checks that the instance is in the cluster.
5531 self.instance = self.cfg.GetInstanceInfo(self.op.instance_name)
5532 assert self.instance is not None, \
5533 "Cannot retrieve locked instance %s" % self.op.instance_name
5534 _CheckNodeOnline(self, self.instance.primary_node)
5536 def Exec(self, feedback_fn):
5537 """Activate the disks.
5540 disks_ok, disks_info = \
5541 _AssembleInstanceDisks(self, self.instance,
5542 ignore_size=self.op.ignore_size)
5544 raise errors.OpExecError("Cannot activate block devices")
5549 def _AssembleInstanceDisks(lu, instance, disks=None, ignore_secondaries=False,
5551 """Prepare the block devices for an instance.
5553 This sets up the block devices on all nodes.
5555 @type lu: L{LogicalUnit}
5556 @param lu: the logical unit on whose behalf we execute
5557 @type instance: L{objects.Instance}
5558 @param instance: the instance for whose disks we assemble
5559 @type disks: list of L{objects.Disk} or None
5560 @param disks: which disks to assemble (or all, if None)
5561 @type ignore_secondaries: boolean
5562 @param ignore_secondaries: if true, errors on secondary nodes
5563 won't result in an error return from the function
5564 @type ignore_size: boolean
5565 @param ignore_size: if true, the current known size of the disk
5566 will not be used during the disk activation, useful for cases
5567 when the size is wrong
5568 @return: False if the operation failed, otherwise a list of
5569 (host, instance_visible_name, node_visible_name)
5570 with the mapping from node devices to instance devices
5575 iname = instance.name
5576 disks = _ExpandCheckDisks(instance, disks)
5578 # With the two passes mechanism we try to reduce the window of
5579 # opportunity for the race condition of switching DRBD to primary
5580 # before handshaking occured, but we do not eliminate it
5582 # The proper fix would be to wait (with some limits) until the
5583 # connection has been made and drbd transitions from WFConnection
5584 # into any other network-connected state (Connected, SyncTarget,
5587 # 1st pass, assemble on all nodes in secondary mode
5588 for idx, inst_disk in enumerate(disks):
5589 for node, node_disk in inst_disk.ComputeNodeTree(instance.primary_node):
5591 node_disk = node_disk.Copy()
5592 node_disk.UnsetSize()
5593 lu.cfg.SetDiskID(node_disk, node)
5594 result = lu.rpc.call_blockdev_assemble(node, node_disk, iname, False, idx)
5595 msg = result.fail_msg
5597 lu.proc.LogWarning("Could not prepare block device %s on node %s"
5598 " (is_primary=False, pass=1): %s",
5599 inst_disk.iv_name, node, msg)
5600 if not ignore_secondaries:
5603 # FIXME: race condition on drbd migration to primary
5605 # 2nd pass, do only the primary node
5606 for idx, inst_disk in enumerate(disks):
5609 for node, node_disk in inst_disk.ComputeNodeTree(instance.primary_node):
5610 if node != instance.primary_node:
5613 node_disk = node_disk.Copy()
5614 node_disk.UnsetSize()
5615 lu.cfg.SetDiskID(node_disk, node)
5616 result = lu.rpc.call_blockdev_assemble(node, node_disk, iname, True, idx)
5617 msg = result.fail_msg
5619 lu.proc.LogWarning("Could not prepare block device %s on node %s"
5620 " (is_primary=True, pass=2): %s",
5621 inst_disk.iv_name, node, msg)
5624 dev_path = result.payload
5626 device_info.append((instance.primary_node, inst_disk.iv_name, dev_path))
5628 # leave the disks configured for the primary node
5629 # this is a workaround that would be fixed better by
5630 # improving the logical/physical id handling
5632 lu.cfg.SetDiskID(disk, instance.primary_node)
5634 return disks_ok, device_info
5637 def _StartInstanceDisks(lu, instance, force):
5638 """Start the disks of an instance.
5641 disks_ok, _ = _AssembleInstanceDisks(lu, instance,
5642 ignore_secondaries=force)
5644 _ShutdownInstanceDisks(lu, instance)
5645 if force is not None and not force:
5646 lu.proc.LogWarning("", hint="If the message above refers to a"
5648 " you can retry the operation using '--force'.")
5649 raise errors.OpExecError("Disk consistency error")
5652 class LUInstanceDeactivateDisks(NoHooksLU):
5653 """Shutdown an instance's disks.
5658 def ExpandNames(self):
5659 self._ExpandAndLockInstance()
5660 self.needed_locks[locking.LEVEL_NODE] = []
5661 self.recalculate_locks[locking.LEVEL_NODE] = constants.LOCKS_REPLACE
5663 def DeclareLocks(self, level):
5664 if level == locking.LEVEL_NODE:
5665 self._LockInstancesNodes()
5667 def CheckPrereq(self):
5668 """Check prerequisites.
5670 This checks that the instance is in the cluster.
5673 self.instance = self.cfg.GetInstanceInfo(self.op.instance_name)
5674 assert self.instance is not None, \
5675 "Cannot retrieve locked instance %s" % self.op.instance_name
5677 def Exec(self, feedback_fn):
5678 """Deactivate the disks
5681 instance = self.instance
5683 _ShutdownInstanceDisks(self, instance)
5685 _SafeShutdownInstanceDisks(self, instance)
5688 def _SafeShutdownInstanceDisks(lu, instance, disks=None):
5689 """Shutdown block devices of an instance.
5691 This function checks if an instance is running, before calling
5692 _ShutdownInstanceDisks.
5695 _CheckInstanceDown(lu, instance, "cannot shutdown disks")
5696 _ShutdownInstanceDisks(lu, instance, disks=disks)
5699 def _ExpandCheckDisks(instance, disks):
5700 """Return the instance disks selected by the disks list
5702 @type disks: list of L{objects.Disk} or None
5703 @param disks: selected disks
5704 @rtype: list of L{objects.Disk}
5705 @return: selected instance disks to act on
5709 return instance.disks
5711 if not set(disks).issubset(instance.disks):
5712 raise errors.ProgrammerError("Can only act on disks belonging to the"
5717 def _ShutdownInstanceDisks(lu, instance, disks=None, ignore_primary=False):
5718 """Shutdown block devices of an instance.
5720 This does the shutdown on all nodes of the instance.
5722 If the ignore_primary is false, errors on the primary node are
5727 disks = _ExpandCheckDisks(instance, disks)
5730 for node, top_disk in disk.ComputeNodeTree(instance.primary_node):
5731 lu.cfg.SetDiskID(top_disk, node)
5732 result = lu.rpc.call_blockdev_shutdown(node, top_disk)
5733 msg = result.fail_msg
5735 lu.LogWarning("Could not shutdown block device %s on node %s: %s",
5736 disk.iv_name, node, msg)
5737 if ((node == instance.primary_node and not ignore_primary) or
5738 (node != instance.primary_node and not result.offline)):
5743 def _CheckNodeFreeMemory(lu, node, reason, requested, hypervisor_name):
5744 """Checks if a node has enough free memory.
5746 This function check if a given node has the needed amount of free
5747 memory. In case the node has less memory or we cannot get the
5748 information from the node, this function raise an OpPrereqError
5751 @type lu: C{LogicalUnit}
5752 @param lu: a logical unit from which we get configuration data
5754 @param node: the node to check
5755 @type reason: C{str}
5756 @param reason: string to use in the error message
5757 @type requested: C{int}
5758 @param requested: the amount of memory in MiB to check for
5759 @type hypervisor_name: C{str}
5760 @param hypervisor_name: the hypervisor to ask for memory stats
5761 @raise errors.OpPrereqError: if the node doesn't have enough memory, or
5762 we cannot check the node
5765 nodeinfo = lu.rpc.call_node_info([node], None, hypervisor_name)
5766 nodeinfo[node].Raise("Can't get data from node %s" % node,
5767 prereq=True, ecode=errors.ECODE_ENVIRON)
5768 free_mem = nodeinfo[node].payload.get("memory_free", None)
5769 if not isinstance(free_mem, int):
5770 raise errors.OpPrereqError("Can't compute free memory on node %s, result"
5771 " was '%s'" % (node, free_mem),
5772 errors.ECODE_ENVIRON)
5773 if requested > free_mem:
5774 raise errors.OpPrereqError("Not enough memory on node %s for %s:"
5775 " needed %s MiB, available %s MiB" %
5776 (node, reason, requested, free_mem),
5780 def _CheckNodesFreeDiskPerVG(lu, nodenames, req_sizes):
5781 """Checks if nodes have enough free disk space in the all VGs.
5783 This function check if all given nodes have the needed amount of
5784 free disk. In case any node has less disk or we cannot get the
5785 information from the node, this function raise an OpPrereqError
5788 @type lu: C{LogicalUnit}
5789 @param lu: a logical unit from which we get configuration data
5790 @type nodenames: C{list}
5791 @param nodenames: the list of node names to check
5792 @type req_sizes: C{dict}
5793 @param req_sizes: the hash of vg and corresponding amount of disk in
5795 @raise errors.OpPrereqError: if the node doesn't have enough disk,
5796 or we cannot check the node
5799 for vg, req_size in req_sizes.items():
5800 _CheckNodesFreeDiskOnVG(lu, nodenames, vg, req_size)
5803 def _CheckNodesFreeDiskOnVG(lu, nodenames, vg, requested):
5804 """Checks if nodes have enough free disk space in the specified VG.
5806 This function check if all given nodes have the needed amount of
5807 free disk. In case any node has less disk 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
5813 @type nodenames: C{list}
5814 @param nodenames: the list of node names to check
5816 @param vg: the volume group to check
5817 @type requested: C{int}
5818 @param requested: the amount of disk in MiB to check for
5819 @raise errors.OpPrereqError: if the node doesn't have enough disk,
5820 or we cannot check the node
5823 nodeinfo = lu.rpc.call_node_info(nodenames, vg, None)
5824 for node in nodenames:
5825 info = nodeinfo[node]
5826 info.Raise("Cannot get current information from node %s" % node,
5827 prereq=True, ecode=errors.ECODE_ENVIRON)
5828 vg_free = info.payload.get("vg_free", None)
5829 if not isinstance(vg_free, int):
5830 raise errors.OpPrereqError("Can't compute free disk space on node"
5831 " %s for vg %s, result was '%s'" %
5832 (node, vg, vg_free), errors.ECODE_ENVIRON)
5833 if requested > vg_free:
5834 raise errors.OpPrereqError("Not enough disk space on target node %s"
5835 " vg %s: required %d MiB, available %d MiB" %
5836 (node, vg, requested, vg_free),
5840 class LUInstanceStartup(LogicalUnit):
5841 """Starts an instance.
5844 HPATH = "instance-start"
5845 HTYPE = constants.HTYPE_INSTANCE
5848 def CheckArguments(self):
5850 if self.op.beparams:
5851 # fill the beparams dict
5852 utils.ForceDictType(self.op.beparams, constants.BES_PARAMETER_TYPES)
5854 def ExpandNames(self):
5855 self._ExpandAndLockInstance()
5857 def BuildHooksEnv(self):
5860 This runs on master, primary and secondary nodes of the instance.
5864 "FORCE": self.op.force,
5867 env.update(_BuildInstanceHookEnvByObject(self, self.instance))
5871 def BuildHooksNodes(self):
5872 """Build hooks nodes.
5875 nl = [self.cfg.GetMasterNode()] + list(self.instance.all_nodes)
5878 def CheckPrereq(self):
5879 """Check prerequisites.
5881 This checks that the instance is in the cluster.
5884 self.instance = instance = self.cfg.GetInstanceInfo(self.op.instance_name)
5885 assert self.instance is not None, \
5886 "Cannot retrieve locked instance %s" % self.op.instance_name
5889 if self.op.hvparams:
5890 # check hypervisor parameter syntax (locally)
5891 cluster = self.cfg.GetClusterInfo()
5892 utils.ForceDictType(self.op.hvparams, constants.HVS_PARAMETER_TYPES)
5893 filled_hvp = cluster.FillHV(instance)
5894 filled_hvp.update(self.op.hvparams)
5895 hv_type = hypervisor.GetHypervisor(instance.hypervisor)
5896 hv_type.CheckParameterSyntax(filled_hvp)
5897 _CheckHVParams(self, instance.all_nodes, instance.hypervisor, filled_hvp)
5899 self.primary_offline = self.cfg.GetNodeInfo(instance.primary_node).offline
5901 if self.primary_offline and self.op.ignore_offline_nodes:
5902 self.proc.LogWarning("Ignoring offline primary node")
5904 if self.op.hvparams or self.op.beparams:
5905 self.proc.LogWarning("Overridden parameters are ignored")
5907 _CheckNodeOnline(self, instance.primary_node)
5909 bep = self.cfg.GetClusterInfo().FillBE(instance)
5911 # check bridges existence
5912 _CheckInstanceBridgesExist(self, instance)
5914 remote_info = self.rpc.call_instance_info(instance.primary_node,
5916 instance.hypervisor)
5917 remote_info.Raise("Error checking node %s" % instance.primary_node,
5918 prereq=True, ecode=errors.ECODE_ENVIRON)
5919 if not remote_info.payload: # not running already
5920 _CheckNodeFreeMemory(self, instance.primary_node,
5921 "starting instance %s" % instance.name,
5922 bep[constants.BE_MEMORY], instance.hypervisor)
5924 def Exec(self, feedback_fn):
5925 """Start the instance.
5928 instance = self.instance
5929 force = self.op.force
5931 if not self.op.no_remember:
5932 self.cfg.MarkInstanceUp(instance.name)
5934 if self.primary_offline:
5935 assert self.op.ignore_offline_nodes
5936 self.proc.LogInfo("Primary node offline, marked instance as started")
5938 node_current = instance.primary_node
5940 _StartInstanceDisks(self, instance, force)
5942 result = self.rpc.call_instance_start(node_current, instance,
5943 self.op.hvparams, self.op.beparams,
5944 self.op.startup_paused)
5945 msg = result.fail_msg
5947 _ShutdownInstanceDisks(self, instance)
5948 raise errors.OpExecError("Could not start instance: %s" % msg)
5951 class LUInstanceReboot(LogicalUnit):
5952 """Reboot an instance.
5955 HPATH = "instance-reboot"
5956 HTYPE = constants.HTYPE_INSTANCE
5959 def ExpandNames(self):
5960 self._ExpandAndLockInstance()
5962 def BuildHooksEnv(self):
5965 This runs on master, primary and secondary nodes of the instance.
5969 "IGNORE_SECONDARIES": self.op.ignore_secondaries,
5970 "REBOOT_TYPE": self.op.reboot_type,
5971 "SHUTDOWN_TIMEOUT": self.op.shutdown_timeout,
5974 env.update(_BuildInstanceHookEnvByObject(self, self.instance))
5978 def BuildHooksNodes(self):
5979 """Build hooks nodes.
5982 nl = [self.cfg.GetMasterNode()] + list(self.instance.all_nodes)
5985 def CheckPrereq(self):
5986 """Check prerequisites.
5988 This checks that the instance is in the cluster.
5991 self.instance = instance = self.cfg.GetInstanceInfo(self.op.instance_name)
5992 assert self.instance is not None, \
5993 "Cannot retrieve locked instance %s" % self.op.instance_name
5995 _CheckNodeOnline(self, instance.primary_node)
5997 # check bridges existence
5998 _CheckInstanceBridgesExist(self, instance)
6000 def Exec(self, feedback_fn):
6001 """Reboot the instance.
6004 instance = self.instance
6005 ignore_secondaries = self.op.ignore_secondaries
6006 reboot_type = self.op.reboot_type
6008 remote_info = self.rpc.call_instance_info(instance.primary_node,
6010 instance.hypervisor)
6011 remote_info.Raise("Error checking node %s" % instance.primary_node)
6012 instance_running = bool(remote_info.payload)
6014 node_current = instance.primary_node
6016 if instance_running and reboot_type in [constants.INSTANCE_REBOOT_SOFT,
6017 constants.INSTANCE_REBOOT_HARD]:
6018 for disk in instance.disks:
6019 self.cfg.SetDiskID(disk, node_current)
6020 result = self.rpc.call_instance_reboot(node_current, instance,
6022 self.op.shutdown_timeout)
6023 result.Raise("Could not reboot instance")
6025 if instance_running:
6026 result = self.rpc.call_instance_shutdown(node_current, instance,
6027 self.op.shutdown_timeout)
6028 result.Raise("Could not shutdown instance for full reboot")
6029 _ShutdownInstanceDisks(self, instance)
6031 self.LogInfo("Instance %s was already stopped, starting now",
6033 _StartInstanceDisks(self, instance, ignore_secondaries)
6034 result = self.rpc.call_instance_start(node_current, instance,
6036 msg = result.fail_msg
6038 _ShutdownInstanceDisks(self, instance)
6039 raise errors.OpExecError("Could not start instance for"
6040 " full reboot: %s" % msg)
6042 self.cfg.MarkInstanceUp(instance.name)
6045 class LUInstanceShutdown(LogicalUnit):
6046 """Shutdown an instance.
6049 HPATH = "instance-stop"
6050 HTYPE = constants.HTYPE_INSTANCE
6053 def ExpandNames(self):
6054 self._ExpandAndLockInstance()
6056 def BuildHooksEnv(self):
6059 This runs on master, primary and secondary nodes of the instance.
6062 env = _BuildInstanceHookEnvByObject(self, self.instance)
6063 env["TIMEOUT"] = self.op.timeout
6066 def BuildHooksNodes(self):
6067 """Build hooks nodes.
6070 nl = [self.cfg.GetMasterNode()] + list(self.instance.all_nodes)
6073 def CheckPrereq(self):
6074 """Check prerequisites.
6076 This checks that the instance is in the cluster.
6079 self.instance = self.cfg.GetInstanceInfo(self.op.instance_name)
6080 assert self.instance is not None, \
6081 "Cannot retrieve locked instance %s" % self.op.instance_name
6083 self.primary_offline = \
6084 self.cfg.GetNodeInfo(self.instance.primary_node).offline
6086 if self.primary_offline and self.op.ignore_offline_nodes:
6087 self.proc.LogWarning("Ignoring offline primary node")
6089 _CheckNodeOnline(self, self.instance.primary_node)
6091 def Exec(self, feedback_fn):
6092 """Shutdown the instance.
6095 instance = self.instance
6096 node_current = instance.primary_node
6097 timeout = self.op.timeout
6099 if not self.op.no_remember:
6100 self.cfg.MarkInstanceDown(instance.name)
6102 if self.primary_offline:
6103 assert self.op.ignore_offline_nodes
6104 self.proc.LogInfo("Primary node offline, marked instance as stopped")
6106 result = self.rpc.call_instance_shutdown(node_current, instance, timeout)
6107 msg = result.fail_msg
6109 self.proc.LogWarning("Could not shutdown instance: %s" % msg)
6111 _ShutdownInstanceDisks(self, instance)
6114 class LUInstanceReinstall(LogicalUnit):
6115 """Reinstall an instance.
6118 HPATH = "instance-reinstall"
6119 HTYPE = constants.HTYPE_INSTANCE
6122 def ExpandNames(self):
6123 self._ExpandAndLockInstance()
6125 def BuildHooksEnv(self):
6128 This runs on master, primary and secondary nodes of the instance.
6131 return _BuildInstanceHookEnvByObject(self, self.instance)
6133 def BuildHooksNodes(self):
6134 """Build hooks nodes.
6137 nl = [self.cfg.GetMasterNode()] + list(self.instance.all_nodes)
6140 def CheckPrereq(self):
6141 """Check prerequisites.
6143 This checks that the instance is in the cluster and is not running.
6146 instance = self.cfg.GetInstanceInfo(self.op.instance_name)
6147 assert instance is not None, \
6148 "Cannot retrieve locked instance %s" % self.op.instance_name
6149 _CheckNodeOnline(self, instance.primary_node, "Instance primary node"
6150 " offline, cannot reinstall")
6151 for node in instance.secondary_nodes:
6152 _CheckNodeOnline(self, node, "Instance secondary node offline,"
6153 " cannot reinstall")
6155 if instance.disk_template == constants.DT_DISKLESS:
6156 raise errors.OpPrereqError("Instance '%s' has no disks" %
6157 self.op.instance_name,
6159 _CheckInstanceDown(self, instance, "cannot reinstall")
6161 if self.op.os_type is not None:
6163 pnode = _ExpandNodeName(self.cfg, instance.primary_node)
6164 _CheckNodeHasOS(self, pnode, self.op.os_type, self.op.force_variant)
6165 instance_os = self.op.os_type
6167 instance_os = instance.os
6169 nodelist = list(instance.all_nodes)
6171 if self.op.osparams:
6172 i_osdict = _GetUpdatedParams(instance.osparams, self.op.osparams)
6173 _CheckOSParams(self, True, nodelist, instance_os, i_osdict)
6174 self.os_inst = i_osdict # the new dict (without defaults)
6178 self.instance = instance
6180 def Exec(self, feedback_fn):
6181 """Reinstall the instance.
6184 inst = self.instance
6186 if self.op.os_type is not None:
6187 feedback_fn("Changing OS to '%s'..." % self.op.os_type)
6188 inst.os = self.op.os_type
6189 # Write to configuration
6190 self.cfg.Update(inst, feedback_fn)
6192 _StartInstanceDisks(self, inst, None)
6194 feedback_fn("Running the instance OS create scripts...")
6195 # FIXME: pass debug option from opcode to backend
6196 result = self.rpc.call_instance_os_add(inst.primary_node, inst, True,
6197 self.op.debug_level,
6198 osparams=self.os_inst)
6199 result.Raise("Could not install OS for instance %s on node %s" %
6200 (inst.name, inst.primary_node))
6202 _ShutdownInstanceDisks(self, inst)
6205 class LUInstanceRecreateDisks(LogicalUnit):
6206 """Recreate an instance's missing disks.
6209 HPATH = "instance-recreate-disks"
6210 HTYPE = constants.HTYPE_INSTANCE
6213 def CheckArguments(self):
6214 # normalise the disk list
6215 self.op.disks = sorted(frozenset(self.op.disks))
6217 def ExpandNames(self):
6218 self._ExpandAndLockInstance()
6219 self.recalculate_locks[locking.LEVEL_NODE] = constants.LOCKS_APPEND
6221 self.op.nodes = [_ExpandNodeName(self.cfg, n) for n in self.op.nodes]
6222 self.needed_locks[locking.LEVEL_NODE] = list(self.op.nodes)
6224 self.needed_locks[locking.LEVEL_NODE] = []
6226 def DeclareLocks(self, level):
6227 if level == locking.LEVEL_NODE:
6228 # if we replace the nodes, we only need to lock the old primary,
6229 # otherwise we need to lock all nodes for disk re-creation
6230 primary_only = bool(self.op.nodes)
6231 self._LockInstancesNodes(primary_only=primary_only)
6233 def BuildHooksEnv(self):
6236 This runs on master, primary and secondary nodes of the instance.
6239 return _BuildInstanceHookEnvByObject(self, self.instance)
6241 def BuildHooksNodes(self):
6242 """Build hooks nodes.
6245 nl = [self.cfg.GetMasterNode()] + list(self.instance.all_nodes)
6248 def CheckPrereq(self):
6249 """Check prerequisites.
6251 This checks that the instance is in the cluster and is not running.
6254 instance = self.cfg.GetInstanceInfo(self.op.instance_name)
6255 assert instance is not None, \
6256 "Cannot retrieve locked instance %s" % self.op.instance_name
6258 if len(self.op.nodes) != len(instance.all_nodes):
6259 raise errors.OpPrereqError("Instance %s currently has %d nodes, but"
6260 " %d replacement nodes were specified" %
6261 (instance.name, len(instance.all_nodes),
6262 len(self.op.nodes)),
6264 assert instance.disk_template != constants.DT_DRBD8 or \
6265 len(self.op.nodes) == 2
6266 assert instance.disk_template != constants.DT_PLAIN or \
6267 len(self.op.nodes) == 1
6268 primary_node = self.op.nodes[0]
6270 primary_node = instance.primary_node
6271 _CheckNodeOnline(self, primary_node)
6273 if instance.disk_template == constants.DT_DISKLESS:
6274 raise errors.OpPrereqError("Instance '%s' has no disks" %
6275 self.op.instance_name, errors.ECODE_INVAL)
6276 # if we replace nodes *and* the old primary is offline, we don't
6278 assert instance.primary_node in self.needed_locks[locking.LEVEL_NODE]
6279 old_pnode = self.cfg.GetNodeInfo(instance.primary_node)
6280 if not (self.op.nodes and old_pnode.offline):
6281 _CheckInstanceDown(self, instance, "cannot recreate disks")
6283 if not self.op.disks:
6284 self.op.disks = range(len(instance.disks))
6286 for idx in self.op.disks:
6287 if idx >= len(instance.disks):
6288 raise errors.OpPrereqError("Invalid disk index '%s'" % idx,
6290 if self.op.disks != range(len(instance.disks)) and self.op.nodes:
6291 raise errors.OpPrereqError("Can't recreate disks partially and"
6292 " change the nodes at the same time",
6294 self.instance = instance
6296 def Exec(self, feedback_fn):
6297 """Recreate the disks.
6300 instance = self.instance
6303 mods = [] # keeps track of needed logical_id changes
6305 for idx, disk in enumerate(instance.disks):
6306 if idx not in self.op.disks: # disk idx has not been passed in
6309 # update secondaries for disks, if needed
6311 if disk.dev_type == constants.LD_DRBD8:
6312 # need to update the nodes and minors
6313 assert len(self.op.nodes) == 2
6314 assert len(disk.logical_id) == 6 # otherwise disk internals
6316 (_, _, old_port, _, _, old_secret) = disk.logical_id
6317 new_minors = self.cfg.AllocateDRBDMinor(self.op.nodes, instance.name)
6318 new_id = (self.op.nodes[0], self.op.nodes[1], old_port,
6319 new_minors[0], new_minors[1], old_secret)
6320 assert len(disk.logical_id) == len(new_id)
6321 mods.append((idx, new_id))
6323 # now that we have passed all asserts above, we can apply the mods
6324 # in a single run (to avoid partial changes)
6325 for idx, new_id in mods:
6326 instance.disks[idx].logical_id = new_id
6328 # change primary node, if needed
6330 instance.primary_node = self.op.nodes[0]
6331 self.LogWarning("Changing the instance's nodes, you will have to"
6332 " remove any disks left on the older nodes manually")
6335 self.cfg.Update(instance, feedback_fn)
6337 _CreateDisks(self, instance, to_skip=to_skip)
6340 class LUInstanceRename(LogicalUnit):
6341 """Rename an instance.
6344 HPATH = "instance-rename"
6345 HTYPE = constants.HTYPE_INSTANCE
6347 def CheckArguments(self):
6351 if self.op.ip_check and not self.op.name_check:
6352 # TODO: make the ip check more flexible and not depend on the name check
6353 raise errors.OpPrereqError("IP address check requires a name check",
6356 def BuildHooksEnv(self):
6359 This runs on master, primary and secondary nodes of the instance.
6362 env = _BuildInstanceHookEnvByObject(self, self.instance)
6363 env["INSTANCE_NEW_NAME"] = self.op.new_name
6366 def BuildHooksNodes(self):
6367 """Build hooks nodes.
6370 nl = [self.cfg.GetMasterNode()] + list(self.instance.all_nodes)
6373 def CheckPrereq(self):
6374 """Check prerequisites.
6376 This checks that the instance is in the cluster and is not running.
6379 self.op.instance_name = _ExpandInstanceName(self.cfg,
6380 self.op.instance_name)
6381 instance = self.cfg.GetInstanceInfo(self.op.instance_name)
6382 assert instance is not None
6383 _CheckNodeOnline(self, instance.primary_node)
6384 _CheckInstanceDown(self, instance, "cannot rename")
6385 self.instance = instance
6387 new_name = self.op.new_name
6388 if self.op.name_check:
6389 hostname = netutils.GetHostname(name=new_name)
6390 if hostname != new_name:
6391 self.LogInfo("Resolved given name '%s' to '%s'", new_name,
6393 if not utils.MatchNameComponent(self.op.new_name, [hostname.name]):
6394 raise errors.OpPrereqError(("Resolved hostname '%s' does not look the"
6395 " same as given hostname '%s'") %
6396 (hostname.name, self.op.new_name),
6398 new_name = self.op.new_name = hostname.name
6399 if (self.op.ip_check and
6400 netutils.TcpPing(hostname.ip, constants.DEFAULT_NODED_PORT)):
6401 raise errors.OpPrereqError("IP %s of instance %s already in use" %
6402 (hostname.ip, new_name),
6403 errors.ECODE_NOTUNIQUE)
6405 instance_list = self.cfg.GetInstanceList()
6406 if new_name in instance_list and new_name != instance.name:
6407 raise errors.OpPrereqError("Instance '%s' is already in the cluster" %
6408 new_name, errors.ECODE_EXISTS)
6410 def Exec(self, feedback_fn):
6411 """Rename the instance.
6414 inst = self.instance
6415 old_name = inst.name
6417 rename_file_storage = False
6418 if (inst.disk_template in constants.DTS_FILEBASED and
6419 self.op.new_name != inst.name):
6420 old_file_storage_dir = os.path.dirname(inst.disks[0].logical_id[1])
6421 rename_file_storage = True
6423 self.cfg.RenameInstance(inst.name, self.op.new_name)
6424 # Change the instance lock. This is definitely safe while we hold the BGL.
6425 # Otherwise the new lock would have to be added in acquired mode.
6427 self.glm.remove(locking.LEVEL_INSTANCE, old_name)
6428 self.glm.add(locking.LEVEL_INSTANCE, self.op.new_name)
6430 # re-read the instance from the configuration after rename
6431 inst = self.cfg.GetInstanceInfo(self.op.new_name)
6433 if rename_file_storage:
6434 new_file_storage_dir = os.path.dirname(inst.disks[0].logical_id[1])
6435 result = self.rpc.call_file_storage_dir_rename(inst.primary_node,
6436 old_file_storage_dir,
6437 new_file_storage_dir)
6438 result.Raise("Could not rename on node %s directory '%s' to '%s'"
6439 " (but the instance has been renamed in Ganeti)" %
6440 (inst.primary_node, old_file_storage_dir,
6441 new_file_storage_dir))
6443 _StartInstanceDisks(self, inst, None)
6445 result = self.rpc.call_instance_run_rename(inst.primary_node, inst,
6446 old_name, self.op.debug_level)
6447 msg = result.fail_msg
6449 msg = ("Could not run OS rename script for instance %s on node %s"
6450 " (but the instance has been renamed in Ganeti): %s" %
6451 (inst.name, inst.primary_node, msg))
6452 self.proc.LogWarning(msg)
6454 _ShutdownInstanceDisks(self, inst)
6459 class LUInstanceRemove(LogicalUnit):
6460 """Remove an instance.
6463 HPATH = "instance-remove"
6464 HTYPE = constants.HTYPE_INSTANCE
6467 def ExpandNames(self):
6468 self._ExpandAndLockInstance()
6469 self.needed_locks[locking.LEVEL_NODE] = []
6470 self.recalculate_locks[locking.LEVEL_NODE] = constants.LOCKS_REPLACE
6472 def DeclareLocks(self, level):
6473 if level == locking.LEVEL_NODE:
6474 self._LockInstancesNodes()
6476 def BuildHooksEnv(self):
6479 This runs on master, primary and secondary nodes of the instance.
6482 env = _BuildInstanceHookEnvByObject(self, self.instance)
6483 env["SHUTDOWN_TIMEOUT"] = self.op.shutdown_timeout
6486 def BuildHooksNodes(self):
6487 """Build hooks nodes.
6490 nl = [self.cfg.GetMasterNode()]
6491 nl_post = list(self.instance.all_nodes) + nl
6492 return (nl, nl_post)
6494 def CheckPrereq(self):
6495 """Check prerequisites.
6497 This checks that the instance is in the cluster.
6500 self.instance = self.cfg.GetInstanceInfo(self.op.instance_name)
6501 assert self.instance is not None, \
6502 "Cannot retrieve locked instance %s" % self.op.instance_name
6504 def Exec(self, feedback_fn):
6505 """Remove the instance.
6508 instance = self.instance
6509 logging.info("Shutting down instance %s on node %s",
6510 instance.name, instance.primary_node)
6512 result = self.rpc.call_instance_shutdown(instance.primary_node, instance,
6513 self.op.shutdown_timeout)
6514 msg = result.fail_msg
6516 if self.op.ignore_failures:
6517 feedback_fn("Warning: can't shutdown instance: %s" % msg)
6519 raise errors.OpExecError("Could not shutdown instance %s on"
6521 (instance.name, instance.primary_node, msg))
6523 _RemoveInstance(self, feedback_fn, instance, self.op.ignore_failures)
6526 def _RemoveInstance(lu, feedback_fn, instance, ignore_failures):
6527 """Utility function to remove an instance.
6530 logging.info("Removing block devices for instance %s", instance.name)
6532 if not _RemoveDisks(lu, instance):
6533 if not ignore_failures:
6534 raise errors.OpExecError("Can't remove instance's disks")
6535 feedback_fn("Warning: can't remove instance's disks")
6537 logging.info("Removing instance %s out of cluster config", instance.name)
6539 lu.cfg.RemoveInstance(instance.name)
6541 assert not lu.remove_locks.get(locking.LEVEL_INSTANCE), \
6542 "Instance lock removal conflict"
6544 # Remove lock for the instance
6545 lu.remove_locks[locking.LEVEL_INSTANCE] = instance.name
6548 class LUInstanceQuery(NoHooksLU):
6549 """Logical unit for querying instances.
6552 # pylint: disable-msg=W0142
6555 def CheckArguments(self):
6556 self.iq = _InstanceQuery(qlang.MakeSimpleFilter("name", self.op.names),
6557 self.op.output_fields, self.op.use_locking)
6559 def ExpandNames(self):
6560 self.iq.ExpandNames(self)
6562 def DeclareLocks(self, level):
6563 self.iq.DeclareLocks(self, level)
6565 def Exec(self, feedback_fn):
6566 return self.iq.OldStyleQuery(self)
6569 class LUInstanceFailover(LogicalUnit):
6570 """Failover an instance.
6573 HPATH = "instance-failover"
6574 HTYPE = constants.HTYPE_INSTANCE
6577 def CheckArguments(self):
6578 """Check the arguments.
6581 self.iallocator = getattr(self.op, "iallocator", None)
6582 self.target_node = getattr(self.op, "target_node", None)
6584 def ExpandNames(self):
6585 self._ExpandAndLockInstance()
6587 if self.op.target_node is not None:
6588 self.op.target_node = _ExpandNodeName(self.cfg, self.op.target_node)
6590 self.needed_locks[locking.LEVEL_NODE] = []
6591 self.recalculate_locks[locking.LEVEL_NODE] = constants.LOCKS_REPLACE
6593 ignore_consistency = self.op.ignore_consistency
6594 shutdown_timeout = self.op.shutdown_timeout
6595 self._migrater = TLMigrateInstance(self, self.op.instance_name,
6598 ignore_consistency=ignore_consistency,
6599 shutdown_timeout=shutdown_timeout)
6600 self.tasklets = [self._migrater]
6602 def DeclareLocks(self, level):
6603 if level == locking.LEVEL_NODE:
6604 instance = self.context.cfg.GetInstanceInfo(self.op.instance_name)
6605 if instance.disk_template in constants.DTS_EXT_MIRROR:
6606 if self.op.target_node is None:
6607 self.needed_locks[locking.LEVEL_NODE] = locking.ALL_SET
6609 self.needed_locks[locking.LEVEL_NODE] = [instance.primary_node,
6610 self.op.target_node]
6611 del self.recalculate_locks[locking.LEVEL_NODE]
6613 self._LockInstancesNodes()
6615 def BuildHooksEnv(self):
6618 This runs on master, primary and secondary nodes of the instance.
6621 instance = self._migrater.instance
6622 source_node = instance.primary_node
6623 target_node = self.op.target_node
6625 "IGNORE_CONSISTENCY": self.op.ignore_consistency,
6626 "SHUTDOWN_TIMEOUT": self.op.shutdown_timeout,
6627 "OLD_PRIMARY": source_node,
6628 "NEW_PRIMARY": target_node,
6631 if instance.disk_template in constants.DTS_INT_MIRROR:
6632 env["OLD_SECONDARY"] = instance.secondary_nodes[0]
6633 env["NEW_SECONDARY"] = source_node
6635 env["OLD_SECONDARY"] = env["NEW_SECONDARY"] = ""
6637 env.update(_BuildInstanceHookEnvByObject(self, instance))
6641 def BuildHooksNodes(self):
6642 """Build hooks nodes.
6645 instance = self._migrater.instance
6646 nl = [self.cfg.GetMasterNode()] + list(instance.secondary_nodes)
6647 return (nl, nl + [instance.primary_node])
6650 class LUInstanceMigrate(LogicalUnit):
6651 """Migrate an instance.
6653 This is migration without shutting down, compared to the failover,
6654 which is done with shutdown.
6657 HPATH = "instance-migrate"
6658 HTYPE = constants.HTYPE_INSTANCE
6661 def ExpandNames(self):
6662 self._ExpandAndLockInstance()
6664 if self.op.target_node is not None:
6665 self.op.target_node = _ExpandNodeName(self.cfg, self.op.target_node)
6667 self.needed_locks[locking.LEVEL_NODE] = []
6668 self.recalculate_locks[locking.LEVEL_NODE] = constants.LOCKS_REPLACE
6670 self._migrater = TLMigrateInstance(self, self.op.instance_name,
6671 cleanup=self.op.cleanup,
6673 fallback=self.op.allow_failover)
6674 self.tasklets = [self._migrater]
6676 def DeclareLocks(self, level):
6677 if level == locking.LEVEL_NODE:
6678 instance = self.context.cfg.GetInstanceInfo(self.op.instance_name)
6679 if instance.disk_template in constants.DTS_EXT_MIRROR:
6680 if self.op.target_node is None:
6681 self.needed_locks[locking.LEVEL_NODE] = locking.ALL_SET
6683 self.needed_locks[locking.LEVEL_NODE] = [instance.primary_node,
6684 self.op.target_node]
6685 del self.recalculate_locks[locking.LEVEL_NODE]
6687 self._LockInstancesNodes()
6689 def BuildHooksEnv(self):
6692 This runs on master, primary and secondary nodes of the instance.
6695 instance = self._migrater.instance
6696 source_node = instance.primary_node
6697 target_node = self.op.target_node
6698 env = _BuildInstanceHookEnvByObject(self, instance)
6700 "MIGRATE_LIVE": self._migrater.live,
6701 "MIGRATE_CLEANUP": self.op.cleanup,
6702 "OLD_PRIMARY": source_node,
6703 "NEW_PRIMARY": target_node,
6706 if instance.disk_template in constants.DTS_INT_MIRROR:
6707 env["OLD_SECONDARY"] = target_node
6708 env["NEW_SECONDARY"] = source_node
6710 env["OLD_SECONDARY"] = env["NEW_SECONDARY"] = None
6714 def BuildHooksNodes(self):
6715 """Build hooks nodes.
6718 instance = self._migrater.instance
6719 nl = [self.cfg.GetMasterNode()] + list(instance.secondary_nodes)
6720 return (nl, nl + [instance.primary_node])
6723 class LUInstanceMove(LogicalUnit):
6724 """Move an instance by data-copying.
6727 HPATH = "instance-move"
6728 HTYPE = constants.HTYPE_INSTANCE
6731 def ExpandNames(self):
6732 self._ExpandAndLockInstance()
6733 target_node = _ExpandNodeName(self.cfg, self.op.target_node)
6734 self.op.target_node = target_node
6735 self.needed_locks[locking.LEVEL_NODE] = [target_node]
6736 self.recalculate_locks[locking.LEVEL_NODE] = constants.LOCKS_APPEND
6738 def DeclareLocks(self, level):
6739 if level == locking.LEVEL_NODE:
6740 self._LockInstancesNodes(primary_only=True)
6742 def BuildHooksEnv(self):
6745 This runs on master, primary and secondary nodes of the instance.
6749 "TARGET_NODE": self.op.target_node,
6750 "SHUTDOWN_TIMEOUT": self.op.shutdown_timeout,
6752 env.update(_BuildInstanceHookEnvByObject(self, self.instance))
6755 def BuildHooksNodes(self):
6756 """Build hooks nodes.
6760 self.cfg.GetMasterNode(),
6761 self.instance.primary_node,
6762 self.op.target_node,
6766 def CheckPrereq(self):
6767 """Check prerequisites.
6769 This checks that the instance is in the cluster.
6772 self.instance = instance = self.cfg.GetInstanceInfo(self.op.instance_name)
6773 assert self.instance is not None, \
6774 "Cannot retrieve locked instance %s" % self.op.instance_name
6776 node = self.cfg.GetNodeInfo(self.op.target_node)
6777 assert node is not None, \
6778 "Cannot retrieve locked node %s" % self.op.target_node
6780 self.target_node = target_node = node.name
6782 if target_node == instance.primary_node:
6783 raise errors.OpPrereqError("Instance %s is already on the node %s" %
6784 (instance.name, target_node),
6787 bep = self.cfg.GetClusterInfo().FillBE(instance)
6789 for idx, dsk in enumerate(instance.disks):
6790 if dsk.dev_type not in (constants.LD_LV, constants.LD_FILE):
6791 raise errors.OpPrereqError("Instance disk %d has a complex layout,"
6792 " cannot copy" % idx, errors.ECODE_STATE)
6794 _CheckNodeOnline(self, target_node)
6795 _CheckNodeNotDrained(self, target_node)
6796 _CheckNodeVmCapable(self, target_node)
6798 if instance.admin_up:
6799 # check memory requirements on the secondary node
6800 _CheckNodeFreeMemory(self, target_node, "failing over instance %s" %
6801 instance.name, bep[constants.BE_MEMORY],
6802 instance.hypervisor)
6804 self.LogInfo("Not checking memory on the secondary node as"
6805 " instance will not be started")
6807 # check bridge existance
6808 _CheckInstanceBridgesExist(self, instance, node=target_node)
6810 def Exec(self, feedback_fn):
6811 """Move an instance.
6813 The move is done by shutting it down on its present node, copying
6814 the data over (slow) and starting it on the new node.
6817 instance = self.instance
6819 source_node = instance.primary_node
6820 target_node = self.target_node
6822 self.LogInfo("Shutting down instance %s on source node %s",
6823 instance.name, source_node)
6825 result = self.rpc.call_instance_shutdown(source_node, instance,
6826 self.op.shutdown_timeout)
6827 msg = result.fail_msg
6829 if self.op.ignore_consistency:
6830 self.proc.LogWarning("Could not shutdown instance %s on node %s."
6831 " Proceeding anyway. Please make sure node"
6832 " %s is down. Error details: %s",
6833 instance.name, source_node, source_node, msg)
6835 raise errors.OpExecError("Could not shutdown instance %s on"
6837 (instance.name, source_node, msg))
6839 # create the target disks
6841 _CreateDisks(self, instance, target_node=target_node)
6842 except errors.OpExecError:
6843 self.LogWarning("Device creation failed, reverting...")
6845 _RemoveDisks(self, instance, target_node=target_node)
6847 self.cfg.ReleaseDRBDMinors(instance.name)
6850 cluster_name = self.cfg.GetClusterInfo().cluster_name
6853 # activate, get path, copy the data over
6854 for idx, disk in enumerate(instance.disks):
6855 self.LogInfo("Copying data for disk %d", idx)
6856 result = self.rpc.call_blockdev_assemble(target_node, disk,
6857 instance.name, True, idx)
6859 self.LogWarning("Can't assemble newly created disk %d: %s",
6860 idx, result.fail_msg)
6861 errs.append(result.fail_msg)
6863 dev_path = result.payload
6864 result = self.rpc.call_blockdev_export(source_node, disk,
6865 target_node, dev_path,
6868 self.LogWarning("Can't copy data over for disk %d: %s",
6869 idx, result.fail_msg)
6870 errs.append(result.fail_msg)
6874 self.LogWarning("Some disks failed to copy, aborting")
6876 _RemoveDisks(self, instance, target_node=target_node)
6878 self.cfg.ReleaseDRBDMinors(instance.name)
6879 raise errors.OpExecError("Errors during disk copy: %s" %
6882 instance.primary_node = target_node
6883 self.cfg.Update(instance, feedback_fn)
6885 self.LogInfo("Removing the disks on the original node")
6886 _RemoveDisks(self, instance, target_node=source_node)
6888 # Only start the instance if it's marked as up
6889 if instance.admin_up:
6890 self.LogInfo("Starting instance %s on node %s",
6891 instance.name, target_node)
6893 disks_ok, _ = _AssembleInstanceDisks(self, instance,
6894 ignore_secondaries=True)
6896 _ShutdownInstanceDisks(self, instance)
6897 raise errors.OpExecError("Can't activate the instance's disks")
6899 result = self.rpc.call_instance_start(target_node, instance,
6901 msg = result.fail_msg
6903 _ShutdownInstanceDisks(self, instance)
6904 raise errors.OpExecError("Could not start instance %s on node %s: %s" %
6905 (instance.name, target_node, msg))
6908 class LUNodeMigrate(LogicalUnit):
6909 """Migrate all instances from a node.
6912 HPATH = "node-migrate"
6913 HTYPE = constants.HTYPE_NODE
6916 def CheckArguments(self):
6919 def ExpandNames(self):
6920 self.op.node_name = _ExpandNodeName(self.cfg, self.op.node_name)
6922 self.share_locks = _ShareAll()
6923 self.needed_locks = {
6924 locking.LEVEL_NODE: [self.op.node_name],
6927 def BuildHooksEnv(self):
6930 This runs on the master, the primary and all the secondaries.
6934 "NODE_NAME": self.op.node_name,
6937 def BuildHooksNodes(self):
6938 """Build hooks nodes.
6941 nl = [self.cfg.GetMasterNode()]
6944 def CheckPrereq(self):
6947 def Exec(self, feedback_fn):
6948 # Prepare jobs for migration instances
6950 [opcodes.OpInstanceMigrate(instance_name=inst.name,
6953 iallocator=self.op.iallocator,
6954 target_node=self.op.target_node)]
6955 for inst in _GetNodePrimaryInstances(self.cfg, self.op.node_name)
6958 # TODO: Run iallocator in this opcode and pass correct placement options to
6959 # OpInstanceMigrate. Since other jobs can modify the cluster between
6960 # running the iallocator and the actual migration, a good consistency model
6961 # will have to be found.
6963 assert (frozenset(self.owned_locks(locking.LEVEL_NODE)) ==
6964 frozenset([self.op.node_name]))
6966 return ResultWithJobs(jobs)
6969 class TLMigrateInstance(Tasklet):
6970 """Tasklet class for instance migration.
6973 @ivar live: whether the migration will be done live or non-live;
6974 this variable is initalized only after CheckPrereq has run
6975 @type cleanup: boolean
6976 @ivar cleanup: Wheater we cleanup from a failed migration
6977 @type iallocator: string
6978 @ivar iallocator: The iallocator used to determine target_node
6979 @type target_node: string
6980 @ivar target_node: If given, the target_node to reallocate the instance to
6981 @type failover: boolean
6982 @ivar failover: Whether operation results in failover or migration
6983 @type fallback: boolean
6984 @ivar fallback: Whether fallback to failover is allowed if migration not
6986 @type ignore_consistency: boolean
6987 @ivar ignore_consistency: Wheter we should ignore consistency between source
6989 @type shutdown_timeout: int
6990 @ivar shutdown_timeout: In case of failover timeout of the shutdown
6993 def __init__(self, lu, instance_name, cleanup=False,
6994 failover=False, fallback=False,
6995 ignore_consistency=False,
6996 shutdown_timeout=constants.DEFAULT_SHUTDOWN_TIMEOUT):
6997 """Initializes this class.
7000 Tasklet.__init__(self, lu)
7003 self.instance_name = instance_name
7004 self.cleanup = cleanup
7005 self.live = False # will be overridden later
7006 self.failover = failover
7007 self.fallback = fallback
7008 self.ignore_consistency = ignore_consistency
7009 self.shutdown_timeout = shutdown_timeout
7011 def CheckPrereq(self):
7012 """Check prerequisites.
7014 This checks that the instance is in the cluster.
7017 instance_name = _ExpandInstanceName(self.lu.cfg, self.instance_name)
7018 instance = self.cfg.GetInstanceInfo(instance_name)
7019 assert instance is not None
7020 self.instance = instance
7022 if (not self.cleanup and not instance.admin_up and not self.failover and
7024 self.lu.LogInfo("Instance is marked down, fallback allowed, switching"
7026 self.failover = True
7028 if instance.disk_template not in constants.DTS_MIRRORED:
7033 raise errors.OpPrereqError("Instance's disk layout '%s' does not allow"
7034 " %s" % (instance.disk_template, text),
7037 if instance.disk_template in constants.DTS_EXT_MIRROR:
7038 _CheckIAllocatorOrNode(self.lu, "iallocator", "target_node")
7040 if self.lu.op.iallocator:
7041 self._RunAllocator()
7043 # We set set self.target_node as it is required by
7045 self.target_node = self.lu.op.target_node
7047 # self.target_node is already populated, either directly or by the
7049 target_node = self.target_node
7050 if self.target_node == instance.primary_node:
7051 raise errors.OpPrereqError("Cannot migrate instance %s"
7052 " to its primary (%s)" %
7053 (instance.name, instance.primary_node))
7055 if len(self.lu.tasklets) == 1:
7056 # It is safe to release locks only when we're the only tasklet
7058 _ReleaseLocks(self.lu, locking.LEVEL_NODE,
7059 keep=[instance.primary_node, self.target_node])
7062 secondary_nodes = instance.secondary_nodes
7063 if not secondary_nodes:
7064 raise errors.ConfigurationError("No secondary node but using"
7065 " %s disk template" %
7066 instance.disk_template)
7067 target_node = secondary_nodes[0]
7068 if self.lu.op.iallocator or (self.lu.op.target_node and
7069 self.lu.op.target_node != target_node):
7071 text = "failed over"
7074 raise errors.OpPrereqError("Instances with disk template %s cannot"
7075 " be %s to arbitrary nodes"
7076 " (neither an iallocator nor a target"
7077 " node can be passed)" %
7078 (instance.disk_template, text),
7081 i_be = self.cfg.GetClusterInfo().FillBE(instance)
7083 # check memory requirements on the secondary node
7084 if not self.failover or instance.admin_up:
7085 _CheckNodeFreeMemory(self.lu, target_node, "migrating instance %s" %
7086 instance.name, i_be[constants.BE_MEMORY],
7087 instance.hypervisor)
7089 self.lu.LogInfo("Not checking memory on the secondary node as"
7090 " instance will not be started")
7092 # check bridge existance
7093 _CheckInstanceBridgesExist(self.lu, instance, node=target_node)
7095 if not self.cleanup:
7096 _CheckNodeNotDrained(self.lu, target_node)
7097 if not self.failover:
7098 result = self.rpc.call_instance_migratable(instance.primary_node,
7100 if result.fail_msg and self.fallback:
7101 self.lu.LogInfo("Can't migrate, instance offline, fallback to"
7103 self.failover = True
7105 result.Raise("Can't migrate, please use failover",
7106 prereq=True, ecode=errors.ECODE_STATE)
7108 assert not (self.failover and self.cleanup)
7110 if not self.failover:
7111 if self.lu.op.live is not None and self.lu.op.mode is not None:
7112 raise errors.OpPrereqError("Only one of the 'live' and 'mode'"
7113 " parameters are accepted",
7115 if self.lu.op.live is not None:
7117 self.lu.op.mode = constants.HT_MIGRATION_LIVE
7119 self.lu.op.mode = constants.HT_MIGRATION_NONLIVE
7120 # reset the 'live' parameter to None so that repeated
7121 # invocations of CheckPrereq do not raise an exception
7122 self.lu.op.live = None
7123 elif self.lu.op.mode is None:
7124 # read the default value from the hypervisor
7125 i_hv = self.cfg.GetClusterInfo().FillHV(self.instance,
7127 self.lu.op.mode = i_hv[constants.HV_MIGRATION_MODE]
7129 self.live = self.lu.op.mode == constants.HT_MIGRATION_LIVE
7131 # Failover is never live
7134 def _RunAllocator(self):
7135 """Run the allocator based on input opcode.
7138 ial = IAllocator(self.cfg, self.rpc,
7139 mode=constants.IALLOCATOR_MODE_RELOC,
7140 name=self.instance_name,
7141 # TODO See why hail breaks with a single node below
7142 relocate_from=[self.instance.primary_node,
7143 self.instance.primary_node],
7146 ial.Run(self.lu.op.iallocator)
7149 raise errors.OpPrereqError("Can't compute nodes using"
7150 " iallocator '%s': %s" %
7151 (self.lu.op.iallocator, ial.info),
7153 if len(ial.result) != ial.required_nodes:
7154 raise errors.OpPrereqError("iallocator '%s' returned invalid number"
7155 " of nodes (%s), required %s" %
7156 (self.lu.op.iallocator, len(ial.result),
7157 ial.required_nodes), errors.ECODE_FAULT)
7158 self.target_node = ial.result[0]
7159 self.lu.LogInfo("Selected nodes for instance %s via iallocator %s: %s",
7160 self.instance_name, self.lu.op.iallocator,
7161 utils.CommaJoin(ial.result))
7163 def _WaitUntilSync(self):
7164 """Poll with custom rpc for disk sync.
7166 This uses our own step-based rpc call.
7169 self.feedback_fn("* wait until resync is done")
7173 result = self.rpc.call_drbd_wait_sync(self.all_nodes,
7175 self.instance.disks)
7177 for node, nres in result.items():
7178 nres.Raise("Cannot resync disks on node %s" % node)
7179 node_done, node_percent = nres.payload
7180 all_done = all_done and node_done
7181 if node_percent is not None:
7182 min_percent = min(min_percent, node_percent)
7184 if min_percent < 100:
7185 self.feedback_fn(" - progress: %.1f%%" % min_percent)
7188 def _EnsureSecondary(self, node):
7189 """Demote a node to secondary.
7192 self.feedback_fn("* switching node %s to secondary mode" % node)
7194 for dev in self.instance.disks:
7195 self.cfg.SetDiskID(dev, node)
7197 result = self.rpc.call_blockdev_close(node, self.instance.name,
7198 self.instance.disks)
7199 result.Raise("Cannot change disk to secondary on node %s" % node)
7201 def _GoStandalone(self):
7202 """Disconnect from the network.
7205 self.feedback_fn("* changing into standalone mode")
7206 result = self.rpc.call_drbd_disconnect_net(self.all_nodes, self.nodes_ip,
7207 self.instance.disks)
7208 for node, nres in result.items():
7209 nres.Raise("Cannot disconnect disks node %s" % node)
7211 def _GoReconnect(self, multimaster):
7212 """Reconnect to the network.
7218 msg = "single-master"
7219 self.feedback_fn("* changing disks into %s mode" % msg)
7220 result = self.rpc.call_drbd_attach_net(self.all_nodes, self.nodes_ip,
7221 self.instance.disks,
7222 self.instance.name, multimaster)
7223 for node, nres in result.items():
7224 nres.Raise("Cannot change disks config on node %s" % node)
7226 def _ExecCleanup(self):
7227 """Try to cleanup after a failed migration.
7229 The cleanup is done by:
7230 - check that the instance is running only on one node
7231 (and update the config if needed)
7232 - change disks on its secondary node to secondary
7233 - wait until disks are fully synchronized
7234 - disconnect from the network
7235 - change disks into single-master mode
7236 - wait again until disks are fully synchronized
7239 instance = self.instance
7240 target_node = self.target_node
7241 source_node = self.source_node
7243 # check running on only one node
7244 self.feedback_fn("* checking where the instance actually runs"
7245 " (if this hangs, the hypervisor might be in"
7247 ins_l = self.rpc.call_instance_list(self.all_nodes, [instance.hypervisor])
7248 for node, result in ins_l.items():
7249 result.Raise("Can't contact node %s" % node)
7251 runningon_source = instance.name in ins_l[source_node].payload
7252 runningon_target = instance.name in ins_l[target_node].payload
7254 if runningon_source and runningon_target:
7255 raise errors.OpExecError("Instance seems to be running on two nodes,"
7256 " or the hypervisor is confused; you will have"
7257 " to ensure manually that it runs only on one"
7258 " and restart this operation")
7260 if not (runningon_source or runningon_target):
7261 raise errors.OpExecError("Instance does not seem to be running at all;"
7262 " in this case it's safer to repair by"
7263 " running 'gnt-instance stop' to ensure disk"
7264 " shutdown, and then restarting it")
7266 if runningon_target:
7267 # the migration has actually succeeded, we need to update the config
7268 self.feedback_fn("* instance running on secondary node (%s),"
7269 " updating config" % target_node)
7270 instance.primary_node = target_node
7271 self.cfg.Update(instance, self.feedback_fn)
7272 demoted_node = source_node
7274 self.feedback_fn("* instance confirmed to be running on its"
7275 " primary node (%s)" % source_node)
7276 demoted_node = target_node
7278 if instance.disk_template in constants.DTS_INT_MIRROR:
7279 self._EnsureSecondary(demoted_node)
7281 self._WaitUntilSync()
7282 except errors.OpExecError:
7283 # we ignore here errors, since if the device is standalone, it
7284 # won't be able to sync
7286 self._GoStandalone()
7287 self._GoReconnect(False)
7288 self._WaitUntilSync()
7290 self.feedback_fn("* done")
7292 def _RevertDiskStatus(self):
7293 """Try to revert the disk status after a failed migration.
7296 target_node = self.target_node
7297 if self.instance.disk_template in constants.DTS_EXT_MIRROR:
7301 self._EnsureSecondary(target_node)
7302 self._GoStandalone()
7303 self._GoReconnect(False)
7304 self._WaitUntilSync()
7305 except errors.OpExecError, err:
7306 self.lu.LogWarning("Migration failed and I can't reconnect the drives,"
7307 " please try to recover the instance manually;"
7308 " error '%s'" % str(err))
7310 def _AbortMigration(self):
7311 """Call the hypervisor code to abort a started migration.
7314 instance = self.instance
7315 target_node = self.target_node
7316 migration_info = self.migration_info
7318 abort_result = self.rpc.call_finalize_migration(target_node,
7322 abort_msg = abort_result.fail_msg
7324 logging.error("Aborting migration failed on target node %s: %s",
7325 target_node, abort_msg)
7326 # Don't raise an exception here, as we stil have to try to revert the
7327 # disk status, even if this step failed.
7329 def _ExecMigration(self):
7330 """Migrate an instance.
7332 The migrate is done by:
7333 - change the disks into dual-master mode
7334 - wait until disks are fully synchronized again
7335 - migrate the instance
7336 - change disks on the new secondary node (the old primary) to secondary
7337 - wait until disks are fully synchronized
7338 - change disks into single-master mode
7341 instance = self.instance
7342 target_node = self.target_node
7343 source_node = self.source_node
7345 self.feedback_fn("* checking disk consistency between source and target")
7346 for dev in instance.disks:
7347 if not _CheckDiskConsistency(self.lu, dev, target_node, False):
7348 raise errors.OpExecError("Disk %s is degraded or not fully"
7349 " synchronized on target node,"
7350 " aborting migration" % dev.iv_name)
7352 # First get the migration information from the remote node
7353 result = self.rpc.call_migration_info(source_node, instance)
7354 msg = result.fail_msg
7356 log_err = ("Failed fetching source migration information from %s: %s" %
7358 logging.error(log_err)
7359 raise errors.OpExecError(log_err)
7361 self.migration_info = migration_info = result.payload
7363 if self.instance.disk_template not in constants.DTS_EXT_MIRROR:
7364 # Then switch the disks to master/master mode
7365 self._EnsureSecondary(target_node)
7366 self._GoStandalone()
7367 self._GoReconnect(True)
7368 self._WaitUntilSync()
7370 self.feedback_fn("* preparing %s to accept the instance" % target_node)
7371 result = self.rpc.call_accept_instance(target_node,
7374 self.nodes_ip[target_node])
7376 msg = result.fail_msg
7378 logging.error("Instance pre-migration failed, trying to revert"
7379 " disk status: %s", msg)
7380 self.feedback_fn("Pre-migration failed, aborting")
7381 self._AbortMigration()
7382 self._RevertDiskStatus()
7383 raise errors.OpExecError("Could not pre-migrate instance %s: %s" %
7384 (instance.name, msg))
7386 self.feedback_fn("* migrating instance to %s" % target_node)
7387 result = self.rpc.call_instance_migrate(source_node, instance,
7388 self.nodes_ip[target_node],
7390 msg = result.fail_msg
7392 logging.error("Instance migration failed, trying to revert"
7393 " disk status: %s", msg)
7394 self.feedback_fn("Migration failed, aborting")
7395 self._AbortMigration()
7396 self._RevertDiskStatus()
7397 raise errors.OpExecError("Could not migrate instance %s: %s" %
7398 (instance.name, msg))
7400 instance.primary_node = target_node
7401 # distribute new instance config to the other nodes
7402 self.cfg.Update(instance, self.feedback_fn)
7404 result = self.rpc.call_finalize_migration(target_node,
7408 msg = result.fail_msg
7410 logging.error("Instance migration succeeded, but finalization failed:"
7412 raise errors.OpExecError("Could not finalize instance migration: %s" %
7415 if self.instance.disk_template not in constants.DTS_EXT_MIRROR:
7416 self._EnsureSecondary(source_node)
7417 self._WaitUntilSync()
7418 self._GoStandalone()
7419 self._GoReconnect(False)
7420 self._WaitUntilSync()
7422 self.feedback_fn("* done")
7424 def _ExecFailover(self):
7425 """Failover an instance.
7427 The failover is done by shutting it down on its present node and
7428 starting it on the secondary.
7431 instance = self.instance
7432 primary_node = self.cfg.GetNodeInfo(instance.primary_node)
7434 source_node = instance.primary_node
7435 target_node = self.target_node
7437 if instance.admin_up:
7438 self.feedback_fn("* checking disk consistency between source and target")
7439 for dev in instance.disks:
7440 # for drbd, these are drbd over lvm
7441 if not _CheckDiskConsistency(self.lu, dev, target_node, False):
7442 if primary_node.offline:
7443 self.feedback_fn("Node %s is offline, ignoring degraded disk %s on"
7445 (primary_node.name, dev.iv_name, target_node))
7446 elif not self.ignore_consistency:
7447 raise errors.OpExecError("Disk %s is degraded on target node,"
7448 " aborting failover" % dev.iv_name)
7450 self.feedback_fn("* not checking disk consistency as instance is not"
7453 self.feedback_fn("* shutting down instance on source node")
7454 logging.info("Shutting down instance %s on node %s",
7455 instance.name, source_node)
7457 result = self.rpc.call_instance_shutdown(source_node, instance,
7458 self.shutdown_timeout)
7459 msg = result.fail_msg
7461 if self.ignore_consistency or primary_node.offline:
7462 self.lu.LogWarning("Could not shutdown instance %s on node %s,"
7463 " proceeding anyway; please make sure node"
7464 " %s is down; error details: %s",
7465 instance.name, source_node, source_node, msg)
7467 raise errors.OpExecError("Could not shutdown instance %s on"
7469 (instance.name, source_node, msg))
7471 self.feedback_fn("* deactivating the instance's disks on source node")
7472 if not _ShutdownInstanceDisks(self.lu, instance, ignore_primary=True):
7473 raise errors.OpExecError("Can't shut down the instance's disks")
7475 instance.primary_node = target_node
7476 # distribute new instance config to the other nodes
7477 self.cfg.Update(instance, self.feedback_fn)
7479 # Only start the instance if it's marked as up
7480 if instance.admin_up:
7481 self.feedback_fn("* activating the instance's disks on target node %s" %
7483 logging.info("Starting instance %s on node %s",
7484 instance.name, target_node)
7486 disks_ok, _ = _AssembleInstanceDisks(self.lu, instance,
7487 ignore_secondaries=True)
7489 _ShutdownInstanceDisks(self.lu, instance)
7490 raise errors.OpExecError("Can't activate the instance's disks")
7492 self.feedback_fn("* starting the instance on the target node %s" %
7494 result = self.rpc.call_instance_start(target_node, instance, None, None,
7496 msg = result.fail_msg
7498 _ShutdownInstanceDisks(self.lu, instance)
7499 raise errors.OpExecError("Could not start instance %s on node %s: %s" %
7500 (instance.name, target_node, msg))
7502 def Exec(self, feedback_fn):
7503 """Perform the migration.
7506 self.feedback_fn = feedback_fn
7507 self.source_node = self.instance.primary_node
7509 # FIXME: if we implement migrate-to-any in DRBD, this needs fixing
7510 if self.instance.disk_template in constants.DTS_INT_MIRROR:
7511 self.target_node = self.instance.secondary_nodes[0]
7512 # Otherwise self.target_node has been populated either
7513 # directly, or through an iallocator.
7515 self.all_nodes = [self.source_node, self.target_node]
7516 self.nodes_ip = dict((name, node.secondary_ip) for (name, node)
7517 in self.cfg.GetMultiNodeInfo(self.all_nodes))
7520 feedback_fn("Failover instance %s" % self.instance.name)
7521 self._ExecFailover()
7523 feedback_fn("Migrating instance %s" % self.instance.name)
7526 return self._ExecCleanup()
7528 return self._ExecMigration()
7531 def _CreateBlockDev(lu, node, instance, device, force_create,
7533 """Create a tree of block devices on a given node.
7535 If this device type has to be created on secondaries, create it and
7538 If not, just recurse to children keeping the same 'force' value.
7540 @param lu: the lu on whose behalf we execute
7541 @param node: the node on which to create the device
7542 @type instance: L{objects.Instance}
7543 @param instance: the instance which owns the device
7544 @type device: L{objects.Disk}
7545 @param device: the device to create
7546 @type force_create: boolean
7547 @param force_create: whether to force creation of this device; this
7548 will be change to True whenever we find a device which has
7549 CreateOnSecondary() attribute
7550 @param info: the extra 'metadata' we should attach to the device
7551 (this will be represented as a LVM tag)
7552 @type force_open: boolean
7553 @param force_open: this parameter will be passes to the
7554 L{backend.BlockdevCreate} function where it specifies
7555 whether we run on primary or not, and it affects both
7556 the child assembly and the device own Open() execution
7559 if device.CreateOnSecondary():
7563 for child in device.children:
7564 _CreateBlockDev(lu, node, instance, child, force_create,
7567 if not force_create:
7570 _CreateSingleBlockDev(lu, node, instance, device, info, force_open)
7573 def _CreateSingleBlockDev(lu, node, instance, device, info, force_open):
7574 """Create a single block device on a given node.
7576 This will not recurse over children of the device, so they must be
7579 @param lu: the lu on whose behalf we execute
7580 @param node: the node on which to create the device
7581 @type instance: L{objects.Instance}
7582 @param instance: the instance which owns the device
7583 @type device: L{objects.Disk}
7584 @param device: the device to create
7585 @param info: the extra 'metadata' we should attach to the device
7586 (this will be represented as a LVM tag)
7587 @type force_open: boolean
7588 @param force_open: this parameter will be passes to the
7589 L{backend.BlockdevCreate} function where it specifies
7590 whether we run on primary or not, and it affects both
7591 the child assembly and the device own Open() execution
7594 lu.cfg.SetDiskID(device, node)
7595 result = lu.rpc.call_blockdev_create(node, device, device.size,
7596 instance.name, force_open, info)
7597 result.Raise("Can't create block device %s on"
7598 " node %s for instance %s" % (device, node, instance.name))
7599 if device.physical_id is None:
7600 device.physical_id = result.payload
7603 def _GenerateUniqueNames(lu, exts):
7604 """Generate a suitable LV name.
7606 This will generate a logical volume name for the given instance.
7611 new_id = lu.cfg.GenerateUniqueID(lu.proc.GetECId())
7612 results.append("%s%s" % (new_id, val))
7616 def _GenerateDRBD8Branch(lu, primary, secondary, size, vgnames, names,
7617 iv_name, p_minor, s_minor):
7618 """Generate a drbd8 device complete with its children.
7621 assert len(vgnames) == len(names) == 2
7622 port = lu.cfg.AllocatePort()
7623 shared_secret = lu.cfg.GenerateDRBDSecret(lu.proc.GetECId())
7624 dev_data = objects.Disk(dev_type=constants.LD_LV, size=size,
7625 logical_id=(vgnames[0], names[0]))
7626 dev_meta = objects.Disk(dev_type=constants.LD_LV, size=128,
7627 logical_id=(vgnames[1], names[1]))
7628 drbd_dev = objects.Disk(dev_type=constants.LD_DRBD8, size=size,
7629 logical_id=(primary, secondary, port,
7632 children=[dev_data, dev_meta],
7637 def _GenerateDiskTemplate(lu, template_name,
7638 instance_name, primary_node,
7639 secondary_nodes, disk_info,
7640 file_storage_dir, file_driver,
7641 base_index, feedback_fn):
7642 """Generate the entire disk layout for a given template type.
7645 #TODO: compute space requirements
7647 vgname = lu.cfg.GetVGName()
7648 disk_count = len(disk_info)
7650 if template_name == constants.DT_DISKLESS:
7652 elif template_name == constants.DT_PLAIN:
7653 if len(secondary_nodes) != 0:
7654 raise errors.ProgrammerError("Wrong template configuration")
7656 names = _GenerateUniqueNames(lu, [".disk%d" % (base_index + i)
7657 for i in range(disk_count)])
7658 for idx, disk in enumerate(disk_info):
7659 disk_index = idx + base_index
7660 vg = disk.get(constants.IDISK_VG, vgname)
7661 feedback_fn("* disk %i, vg %s, name %s" % (idx, vg, names[idx]))
7662 disk_dev = objects.Disk(dev_type=constants.LD_LV,
7663 size=disk[constants.IDISK_SIZE],
7664 logical_id=(vg, names[idx]),
7665 iv_name="disk/%d" % disk_index,
7666 mode=disk[constants.IDISK_MODE])
7667 disks.append(disk_dev)
7668 elif template_name == constants.DT_DRBD8:
7669 if len(secondary_nodes) != 1:
7670 raise errors.ProgrammerError("Wrong template configuration")
7671 remote_node = secondary_nodes[0]
7672 minors = lu.cfg.AllocateDRBDMinor(
7673 [primary_node, remote_node] * len(disk_info), instance_name)
7676 for lv_prefix in _GenerateUniqueNames(lu, [".disk%d" % (base_index + i)
7677 for i in range(disk_count)]):
7678 names.append(lv_prefix + "_data")
7679 names.append(lv_prefix + "_meta")
7680 for idx, disk in enumerate(disk_info):
7681 disk_index = idx + base_index
7682 data_vg = disk.get(constants.IDISK_VG, vgname)
7683 meta_vg = disk.get(constants.IDISK_METAVG, data_vg)
7684 disk_dev = _GenerateDRBD8Branch(lu, primary_node, remote_node,
7685 disk[constants.IDISK_SIZE],
7687 names[idx * 2:idx * 2 + 2],
7688 "disk/%d" % disk_index,
7689 minors[idx * 2], minors[idx * 2 + 1])
7690 disk_dev.mode = disk[constants.IDISK_MODE]
7691 disks.append(disk_dev)
7692 elif template_name == constants.DT_FILE:
7693 if len(secondary_nodes) != 0:
7694 raise errors.ProgrammerError("Wrong template configuration")
7696 opcodes.RequireFileStorage()
7698 for idx, disk in enumerate(disk_info):
7699 disk_index = idx + base_index
7700 disk_dev = objects.Disk(dev_type=constants.LD_FILE,
7701 size=disk[constants.IDISK_SIZE],
7702 iv_name="disk/%d" % disk_index,
7703 logical_id=(file_driver,
7704 "%s/disk%d" % (file_storage_dir,
7706 mode=disk[constants.IDISK_MODE])
7707 disks.append(disk_dev)
7708 elif template_name == constants.DT_SHARED_FILE:
7709 if len(secondary_nodes) != 0:
7710 raise errors.ProgrammerError("Wrong template configuration")
7712 opcodes.RequireSharedFileStorage()
7714 for idx, disk in enumerate(disk_info):
7715 disk_index = idx + base_index
7716 disk_dev = objects.Disk(dev_type=constants.LD_FILE,
7717 size=disk[constants.IDISK_SIZE],
7718 iv_name="disk/%d" % disk_index,
7719 logical_id=(file_driver,
7720 "%s/disk%d" % (file_storage_dir,
7722 mode=disk[constants.IDISK_MODE])
7723 disks.append(disk_dev)
7724 elif template_name == constants.DT_BLOCK:
7725 if len(secondary_nodes) != 0:
7726 raise errors.ProgrammerError("Wrong template configuration")
7728 for idx, disk in enumerate(disk_info):
7729 disk_index = idx + base_index
7730 disk_dev = objects.Disk(dev_type=constants.LD_BLOCKDEV,
7731 size=disk[constants.IDISK_SIZE],
7732 logical_id=(constants.BLOCKDEV_DRIVER_MANUAL,
7733 disk[constants.IDISK_ADOPT]),
7734 iv_name="disk/%d" % disk_index,
7735 mode=disk[constants.IDISK_MODE])
7736 disks.append(disk_dev)
7739 raise errors.ProgrammerError("Invalid disk template '%s'" % template_name)
7743 def _GetInstanceInfoText(instance):
7744 """Compute that text that should be added to the disk's metadata.
7747 return "originstname+%s" % instance.name
7750 def _CalcEta(time_taken, written, total_size):
7751 """Calculates the ETA based on size written and total size.
7753 @param time_taken: The time taken so far
7754 @param written: amount written so far
7755 @param total_size: The total size of data to be written
7756 @return: The remaining time in seconds
7759 avg_time = time_taken / float(written)
7760 return (total_size - written) * avg_time
7763 def _WipeDisks(lu, instance):
7764 """Wipes instance disks.
7766 @type lu: L{LogicalUnit}
7767 @param lu: the logical unit on whose behalf we execute
7768 @type instance: L{objects.Instance}
7769 @param instance: the instance whose disks we should create
7770 @return: the success of the wipe
7773 node = instance.primary_node
7775 for device in instance.disks:
7776 lu.cfg.SetDiskID(device, node)
7778 logging.info("Pause sync of instance %s disks", instance.name)
7779 result = lu.rpc.call_blockdev_pause_resume_sync(node, instance.disks, True)
7781 for idx, success in enumerate(result.payload):
7783 logging.warn("pause-sync of instance %s for disks %d failed",
7787 for idx, device in enumerate(instance.disks):
7788 # The wipe size is MIN_WIPE_CHUNK_PERCENT % of the instance disk but
7789 # MAX_WIPE_CHUNK at max
7790 wipe_chunk_size = min(constants.MAX_WIPE_CHUNK, device.size / 100.0 *
7791 constants.MIN_WIPE_CHUNK_PERCENT)
7792 # we _must_ make this an int, otherwise rounding errors will
7794 wipe_chunk_size = int(wipe_chunk_size)
7796 lu.LogInfo("* Wiping disk %d", idx)
7797 logging.info("Wiping disk %d for instance %s, node %s using"
7798 " chunk size %s", idx, instance.name, node, wipe_chunk_size)
7803 start_time = time.time()
7805 while offset < size:
7806 wipe_size = min(wipe_chunk_size, size - offset)
7807 logging.debug("Wiping disk %d, offset %s, chunk %s",
7808 idx, offset, wipe_size)
7809 result = lu.rpc.call_blockdev_wipe(node, device, offset, wipe_size)
7810 result.Raise("Could not wipe disk %d at offset %d for size %d" %
7811 (idx, offset, wipe_size))
7814 if now - last_output >= 60:
7815 eta = _CalcEta(now - start_time, offset, size)
7816 lu.LogInfo(" - done: %.1f%% ETA: %s" %
7817 (offset / float(size) * 100, utils.FormatSeconds(eta)))
7820 logging.info("Resume sync of instance %s disks", instance.name)
7822 result = lu.rpc.call_blockdev_pause_resume_sync(node, instance.disks, False)
7824 for idx, success in enumerate(result.payload):
7826 lu.LogWarning("Resume sync of disk %d failed, please have a"
7827 " look at the status and troubleshoot the issue", idx)
7828 logging.warn("resume-sync of instance %s for disks %d failed",
7832 def _CreateDisks(lu, instance, to_skip=None, target_node=None):
7833 """Create all disks for an instance.
7835 This abstracts away some work from AddInstance.
7837 @type lu: L{LogicalUnit}
7838 @param lu: the logical unit on whose behalf we execute
7839 @type instance: L{objects.Instance}
7840 @param instance: the instance whose disks we should create
7842 @param to_skip: list of indices to skip
7843 @type target_node: string
7844 @param target_node: if passed, overrides the target node for creation
7846 @return: the success of the creation
7849 info = _GetInstanceInfoText(instance)
7850 if target_node is None:
7851 pnode = instance.primary_node
7852 all_nodes = instance.all_nodes
7857 if instance.disk_template in constants.DTS_FILEBASED:
7858 file_storage_dir = os.path.dirname(instance.disks[0].logical_id[1])
7859 result = lu.rpc.call_file_storage_dir_create(pnode, file_storage_dir)
7861 result.Raise("Failed to create directory '%s' on"
7862 " node %s" % (file_storage_dir, pnode))
7864 # Note: this needs to be kept in sync with adding of disks in
7865 # LUInstanceSetParams
7866 for idx, device in enumerate(instance.disks):
7867 if to_skip and idx in to_skip:
7869 logging.info("Creating volume %s for instance %s",
7870 device.iv_name, instance.name)
7872 for node in all_nodes:
7873 f_create = node == pnode
7874 _CreateBlockDev(lu, node, instance, device, f_create, info, f_create)
7877 def _RemoveDisks(lu, instance, target_node=None):
7878 """Remove all disks for an instance.
7880 This abstracts away some work from `AddInstance()` and
7881 `RemoveInstance()`. Note that in case some of the devices couldn't
7882 be removed, the removal will continue with the other ones (compare
7883 with `_CreateDisks()`).
7885 @type lu: L{LogicalUnit}
7886 @param lu: the logical unit on whose behalf we execute
7887 @type instance: L{objects.Instance}
7888 @param instance: the instance whose disks we should remove
7889 @type target_node: string
7890 @param target_node: used to override the node on which to remove the disks
7892 @return: the success of the removal
7895 logging.info("Removing block devices for instance %s", instance.name)
7898 for device in instance.disks:
7900 edata = [(target_node, device)]
7902 edata = device.ComputeNodeTree(instance.primary_node)
7903 for node, disk in edata:
7904 lu.cfg.SetDiskID(disk, node)
7905 msg = lu.rpc.call_blockdev_remove(node, disk).fail_msg
7907 lu.LogWarning("Could not remove block device %s on node %s,"
7908 " continuing anyway: %s", device.iv_name, node, msg)
7911 if instance.disk_template == constants.DT_FILE:
7912 file_storage_dir = os.path.dirname(instance.disks[0].logical_id[1])
7916 tgt = instance.primary_node
7917 result = lu.rpc.call_file_storage_dir_remove(tgt, file_storage_dir)
7919 lu.LogWarning("Could not remove directory '%s' on node %s: %s",
7920 file_storage_dir, instance.primary_node, result.fail_msg)
7926 def _ComputeDiskSizePerVG(disk_template, disks):
7927 """Compute disk size requirements in the volume group
7930 def _compute(disks, payload):
7931 """Universal algorithm.
7936 vgs[disk[constants.IDISK_VG]] = \
7937 vgs.get(constants.IDISK_VG, 0) + disk[constants.IDISK_SIZE] + payload
7941 # Required free disk space as a function of disk and swap space
7943 constants.DT_DISKLESS: {},
7944 constants.DT_PLAIN: _compute(disks, 0),
7945 # 128 MB are added for drbd metadata for each disk
7946 constants.DT_DRBD8: _compute(disks, 128),
7947 constants.DT_FILE: {},
7948 constants.DT_SHARED_FILE: {},
7951 if disk_template not in req_size_dict:
7952 raise errors.ProgrammerError("Disk template '%s' size requirement"
7953 " is unknown" % disk_template)
7955 return req_size_dict[disk_template]
7958 def _ComputeDiskSize(disk_template, disks):
7959 """Compute disk size requirements in the volume group
7962 # Required free disk space as a function of disk and swap space
7964 constants.DT_DISKLESS: None,
7965 constants.DT_PLAIN: sum(d[constants.IDISK_SIZE] for d in disks),
7966 # 128 MB are added for drbd metadata for each disk
7967 constants.DT_DRBD8: sum(d[constants.IDISK_SIZE] + 128 for d in disks),
7968 constants.DT_FILE: None,
7969 constants.DT_SHARED_FILE: 0,
7970 constants.DT_BLOCK: 0,
7973 if disk_template not in req_size_dict:
7974 raise errors.ProgrammerError("Disk template '%s' size requirement"
7975 " is unknown" % disk_template)
7977 return req_size_dict[disk_template]
7980 def _FilterVmNodes(lu, nodenames):
7981 """Filters out non-vm_capable nodes from a list.
7983 @type lu: L{LogicalUnit}
7984 @param lu: the logical unit for which we check
7985 @type nodenames: list
7986 @param nodenames: the list of nodes on which we should check
7988 @return: the list of vm-capable nodes
7991 vm_nodes = frozenset(lu.cfg.GetNonVmCapableNodeList())
7992 return [name for name in nodenames if name not in vm_nodes]
7995 def _CheckHVParams(lu, nodenames, hvname, hvparams):
7996 """Hypervisor parameter validation.
7998 This function abstract the hypervisor parameter validation to be
7999 used in both instance create and instance modify.
8001 @type lu: L{LogicalUnit}
8002 @param lu: the logical unit for which we check
8003 @type nodenames: list
8004 @param nodenames: the list of nodes on which we should check
8005 @type hvname: string
8006 @param hvname: the name of the hypervisor we should use
8007 @type hvparams: dict
8008 @param hvparams: the parameters which we need to check
8009 @raise errors.OpPrereqError: if the parameters are not valid
8012 nodenames = _FilterVmNodes(lu, nodenames)
8013 hvinfo = lu.rpc.call_hypervisor_validate_params(nodenames,
8016 for node in nodenames:
8020 info.Raise("Hypervisor parameter validation failed on node %s" % node)
8023 def _CheckOSParams(lu, required, nodenames, osname, osparams):
8024 """OS parameters validation.
8026 @type lu: L{LogicalUnit}
8027 @param lu: the logical unit for which we check
8028 @type required: boolean
8029 @param required: whether the validation should fail if the OS is not
8031 @type nodenames: list
8032 @param nodenames: the list of nodes on which we should check
8033 @type osname: string
8034 @param osname: the name of the hypervisor we should use
8035 @type osparams: dict
8036 @param osparams: the parameters which we need to check
8037 @raise errors.OpPrereqError: if the parameters are not valid
8040 nodenames = _FilterVmNodes(lu, nodenames)
8041 result = lu.rpc.call_os_validate(required, nodenames, osname,
8042 [constants.OS_VALIDATE_PARAMETERS],
8044 for node, nres in result.items():
8045 # we don't check for offline cases since this should be run only
8046 # against the master node and/or an instance's nodes
8047 nres.Raise("OS Parameters validation failed on node %s" % node)
8048 if not nres.payload:
8049 lu.LogInfo("OS %s not found on node %s, validation skipped",
8053 class LUInstanceCreate(LogicalUnit):
8054 """Create an instance.
8057 HPATH = "instance-add"
8058 HTYPE = constants.HTYPE_INSTANCE
8061 def CheckArguments(self):
8065 # do not require name_check to ease forward/backward compatibility
8067 if self.op.no_install and self.op.start:
8068 self.LogInfo("No-installation mode selected, disabling startup")
8069 self.op.start = False
8070 # validate/normalize the instance name
8071 self.op.instance_name = \
8072 netutils.Hostname.GetNormalizedName(self.op.instance_name)
8074 if self.op.ip_check and not self.op.name_check:
8075 # TODO: make the ip check more flexible and not depend on the name check
8076 raise errors.OpPrereqError("Cannot do IP address check without a name"
8077 " check", errors.ECODE_INVAL)
8079 # check nics' parameter names
8080 for nic in self.op.nics:
8081 utils.ForceDictType(nic, constants.INIC_PARAMS_TYPES)
8083 # check disks. parameter names and consistent adopt/no-adopt strategy
8084 has_adopt = has_no_adopt = False
8085 for disk in self.op.disks:
8086 utils.ForceDictType(disk, constants.IDISK_PARAMS_TYPES)
8087 if constants.IDISK_ADOPT in disk:
8091 if has_adopt and has_no_adopt:
8092 raise errors.OpPrereqError("Either all disks are adopted or none is",
8095 if self.op.disk_template not in constants.DTS_MAY_ADOPT:
8096 raise errors.OpPrereqError("Disk adoption is not supported for the"
8097 " '%s' disk template" %
8098 self.op.disk_template,
8100 if self.op.iallocator is not None:
8101 raise errors.OpPrereqError("Disk adoption not allowed with an"
8102 " iallocator script", errors.ECODE_INVAL)
8103 if self.op.mode == constants.INSTANCE_IMPORT:
8104 raise errors.OpPrereqError("Disk adoption not allowed for"
8105 " instance import", errors.ECODE_INVAL)
8107 if self.op.disk_template in constants.DTS_MUST_ADOPT:
8108 raise errors.OpPrereqError("Disk template %s requires disk adoption,"
8109 " but no 'adopt' parameter given" %
8110 self.op.disk_template,
8113 self.adopt_disks = has_adopt
8115 # instance name verification
8116 if self.op.name_check:
8117 self.hostname1 = netutils.GetHostname(name=self.op.instance_name)
8118 self.op.instance_name = self.hostname1.name
8119 # used in CheckPrereq for ip ping check
8120 self.check_ip = self.hostname1.ip
8122 self.check_ip = None
8124 # file storage checks
8125 if (self.op.file_driver and
8126 not self.op.file_driver in constants.FILE_DRIVER):
8127 raise errors.OpPrereqError("Invalid file driver name '%s'" %
8128 self.op.file_driver, errors.ECODE_INVAL)
8130 if self.op.disk_template == constants.DT_FILE:
8131 opcodes.RequireFileStorage()
8132 elif self.op.disk_template == constants.DT_SHARED_FILE:
8133 opcodes.RequireSharedFileStorage()
8135 ### Node/iallocator related checks
8136 _CheckIAllocatorOrNode(self, "iallocator", "pnode")
8138 if self.op.pnode is not None:
8139 if self.op.disk_template in constants.DTS_INT_MIRROR:
8140 if self.op.snode is None:
8141 raise errors.OpPrereqError("The networked disk templates need"
8142 " a mirror node", errors.ECODE_INVAL)
8144 self.LogWarning("Secondary node will be ignored on non-mirrored disk"
8146 self.op.snode = None
8148 self._cds = _GetClusterDomainSecret()
8150 if self.op.mode == constants.INSTANCE_IMPORT:
8151 # On import force_variant must be True, because if we forced it at
8152 # initial install, our only chance when importing it back is that it
8154 self.op.force_variant = True
8156 if self.op.no_install:
8157 self.LogInfo("No-installation mode has no effect during import")
8159 elif self.op.mode == constants.INSTANCE_CREATE:
8160 if self.op.os_type is None:
8161 raise errors.OpPrereqError("No guest OS specified",
8163 if self.op.os_type in self.cfg.GetClusterInfo().blacklisted_os:
8164 raise errors.OpPrereqError("Guest OS '%s' is not allowed for"
8165 " installation" % self.op.os_type,
8167 if self.op.disk_template is None:
8168 raise errors.OpPrereqError("No disk template specified",
8171 elif self.op.mode == constants.INSTANCE_REMOTE_IMPORT:
8172 # Check handshake to ensure both clusters have the same domain secret
8173 src_handshake = self.op.source_handshake
8174 if not src_handshake:
8175 raise errors.OpPrereqError("Missing source handshake",
8178 errmsg = masterd.instance.CheckRemoteExportHandshake(self._cds,
8181 raise errors.OpPrereqError("Invalid handshake: %s" % errmsg,
8184 # Load and check source CA
8185 self.source_x509_ca_pem = self.op.source_x509_ca
8186 if not self.source_x509_ca_pem:
8187 raise errors.OpPrereqError("Missing source X509 CA",
8191 (cert, _) = utils.LoadSignedX509Certificate(self.source_x509_ca_pem,
8193 except OpenSSL.crypto.Error, err:
8194 raise errors.OpPrereqError("Unable to load source X509 CA (%s)" %
8195 (err, ), errors.ECODE_INVAL)
8197 (errcode, msg) = utils.VerifyX509Certificate(cert, None, None)
8198 if errcode is not None:
8199 raise errors.OpPrereqError("Invalid source X509 CA (%s)" % (msg, ),
8202 self.source_x509_ca = cert
8204 src_instance_name = self.op.source_instance_name
8205 if not src_instance_name:
8206 raise errors.OpPrereqError("Missing source instance name",
8209 self.source_instance_name = \
8210 netutils.GetHostname(name=src_instance_name).name
8213 raise errors.OpPrereqError("Invalid instance creation mode %r" %
8214 self.op.mode, errors.ECODE_INVAL)
8216 def ExpandNames(self):
8217 """ExpandNames for CreateInstance.
8219 Figure out the right locks for instance creation.
8222 self.needed_locks = {}
8224 instance_name = self.op.instance_name
8225 # this is just a preventive check, but someone might still add this
8226 # instance in the meantime, and creation will fail at lock-add time
8227 if instance_name in self.cfg.GetInstanceList():
8228 raise errors.OpPrereqError("Instance '%s' is already in the cluster" %
8229 instance_name, errors.ECODE_EXISTS)
8231 self.add_locks[locking.LEVEL_INSTANCE] = instance_name
8233 if self.op.iallocator:
8234 self.needed_locks[locking.LEVEL_NODE] = locking.ALL_SET
8236 self.op.pnode = _ExpandNodeName(self.cfg, self.op.pnode)
8237 nodelist = [self.op.pnode]
8238 if self.op.snode is not None:
8239 self.op.snode = _ExpandNodeName(self.cfg, self.op.snode)
8240 nodelist.append(self.op.snode)
8241 self.needed_locks[locking.LEVEL_NODE] = nodelist
8243 # in case of import lock the source node too
8244 if self.op.mode == constants.INSTANCE_IMPORT:
8245 src_node = self.op.src_node
8246 src_path = self.op.src_path
8248 if src_path is None:
8249 self.op.src_path = src_path = self.op.instance_name
8251 if src_node is None:
8252 self.needed_locks[locking.LEVEL_NODE] = locking.ALL_SET
8253 self.op.src_node = None
8254 if os.path.isabs(src_path):
8255 raise errors.OpPrereqError("Importing an instance from an absolute"
8256 " path requires a source node option",
8259 self.op.src_node = src_node = _ExpandNodeName(self.cfg, src_node)
8260 if self.needed_locks[locking.LEVEL_NODE] is not locking.ALL_SET:
8261 self.needed_locks[locking.LEVEL_NODE].append(src_node)
8262 if not os.path.isabs(src_path):
8263 self.op.src_path = src_path = \
8264 utils.PathJoin(constants.EXPORT_DIR, src_path)
8266 def _RunAllocator(self):
8267 """Run the allocator based on input opcode.
8270 nics = [n.ToDict() for n in self.nics]
8271 ial = IAllocator(self.cfg, self.rpc,
8272 mode=constants.IALLOCATOR_MODE_ALLOC,
8273 name=self.op.instance_name,
8274 disk_template=self.op.disk_template,
8277 vcpus=self.be_full[constants.BE_VCPUS],
8278 memory=self.be_full[constants.BE_MEMORY],
8281 hypervisor=self.op.hypervisor,
8284 ial.Run(self.op.iallocator)
8287 raise errors.OpPrereqError("Can't compute nodes using"
8288 " iallocator '%s': %s" %
8289 (self.op.iallocator, ial.info),
8291 if len(ial.result) != ial.required_nodes:
8292 raise errors.OpPrereqError("iallocator '%s' returned invalid number"
8293 " of nodes (%s), required %s" %
8294 (self.op.iallocator, len(ial.result),
8295 ial.required_nodes), errors.ECODE_FAULT)
8296 self.op.pnode = ial.result[0]
8297 self.LogInfo("Selected nodes for instance %s via iallocator %s: %s",
8298 self.op.instance_name, self.op.iallocator,
8299 utils.CommaJoin(ial.result))
8300 if ial.required_nodes == 2:
8301 self.op.snode = ial.result[1]
8303 def BuildHooksEnv(self):
8306 This runs on master, primary and secondary nodes of the instance.
8310 "ADD_MODE": self.op.mode,
8312 if self.op.mode == constants.INSTANCE_IMPORT:
8313 env["SRC_NODE"] = self.op.src_node
8314 env["SRC_PATH"] = self.op.src_path
8315 env["SRC_IMAGES"] = self.src_images
8317 env.update(_BuildInstanceHookEnv(
8318 name=self.op.instance_name,
8319 primary_node=self.op.pnode,
8320 secondary_nodes=self.secondaries,
8321 status=self.op.start,
8322 os_type=self.op.os_type,
8323 memory=self.be_full[constants.BE_MEMORY],
8324 vcpus=self.be_full[constants.BE_VCPUS],
8325 nics=_NICListToTuple(self, self.nics),
8326 disk_template=self.op.disk_template,
8327 disks=[(d[constants.IDISK_SIZE], d[constants.IDISK_MODE])
8328 for d in self.disks],
8331 hypervisor_name=self.op.hypervisor,
8337 def BuildHooksNodes(self):
8338 """Build hooks nodes.
8341 nl = [self.cfg.GetMasterNode(), self.op.pnode] + self.secondaries
8344 def _ReadExportInfo(self):
8345 """Reads the export information from disk.
8347 It will override the opcode source node and path with the actual
8348 information, if these two were not specified before.
8350 @return: the export information
8353 assert self.op.mode == constants.INSTANCE_IMPORT
8355 src_node = self.op.src_node
8356 src_path = self.op.src_path
8358 if src_node is None:
8359 locked_nodes = self.owned_locks(locking.LEVEL_NODE)
8360 exp_list = self.rpc.call_export_list(locked_nodes)
8362 for node in exp_list:
8363 if exp_list[node].fail_msg:
8365 if src_path in exp_list[node].payload:
8367 self.op.src_node = src_node = node
8368 self.op.src_path = src_path = utils.PathJoin(constants.EXPORT_DIR,
8372 raise errors.OpPrereqError("No export found for relative path %s" %
8373 src_path, errors.ECODE_INVAL)
8375 _CheckNodeOnline(self, src_node)
8376 result = self.rpc.call_export_info(src_node, src_path)
8377 result.Raise("No export or invalid export found in dir %s" % src_path)
8379 export_info = objects.SerializableConfigParser.Loads(str(result.payload))
8380 if not export_info.has_section(constants.INISECT_EXP):
8381 raise errors.ProgrammerError("Corrupted export config",
8382 errors.ECODE_ENVIRON)
8384 ei_version = export_info.get(constants.INISECT_EXP, "version")
8385 if (int(ei_version) != constants.EXPORT_VERSION):
8386 raise errors.OpPrereqError("Wrong export version %s (wanted %d)" %
8387 (ei_version, constants.EXPORT_VERSION),
8388 errors.ECODE_ENVIRON)
8391 def _ReadExportParams(self, einfo):
8392 """Use export parameters as defaults.
8394 In case the opcode doesn't specify (as in override) some instance
8395 parameters, then try to use them from the export information, if
8399 self.op.os_type = einfo.get(constants.INISECT_EXP, "os")
8401 if self.op.disk_template is None:
8402 if einfo.has_option(constants.INISECT_INS, "disk_template"):
8403 self.op.disk_template = einfo.get(constants.INISECT_INS,
8406 raise errors.OpPrereqError("No disk template specified and the export"
8407 " is missing the disk_template information",
8410 if not self.op.disks:
8411 if einfo.has_option(constants.INISECT_INS, "disk_count"):
8413 # TODO: import the disk iv_name too
8414 for idx in range(einfo.getint(constants.INISECT_INS, "disk_count")):
8415 disk_sz = einfo.getint(constants.INISECT_INS, "disk%d_size" % idx)
8416 disks.append({constants.IDISK_SIZE: disk_sz})
8417 self.op.disks = disks
8419 raise errors.OpPrereqError("No disk info specified and the export"
8420 " is missing the disk information",
8423 if (not self.op.nics and
8424 einfo.has_option(constants.INISECT_INS, "nic_count")):
8426 for idx in range(einfo.getint(constants.INISECT_INS, "nic_count")):
8428 for name in list(constants.NICS_PARAMETERS) + ["ip", "mac"]:
8429 v = einfo.get(constants.INISECT_INS, "nic%d_%s" % (idx, name))
8434 if not self.op.tags and einfo.has_option(constants.INISECT_INS, "tags"):
8435 self.op.tags = einfo.get(constants.INISECT_INS, "tags").split()
8437 if (self.op.hypervisor is None and
8438 einfo.has_option(constants.INISECT_INS, "hypervisor")):
8439 self.op.hypervisor = einfo.get(constants.INISECT_INS, "hypervisor")
8441 if einfo.has_section(constants.INISECT_HYP):
8442 # use the export parameters but do not override the ones
8443 # specified by the user
8444 for name, value in einfo.items(constants.INISECT_HYP):
8445 if name not in self.op.hvparams:
8446 self.op.hvparams[name] = value
8448 if einfo.has_section(constants.INISECT_BEP):
8449 # use the parameters, without overriding
8450 for name, value in einfo.items(constants.INISECT_BEP):
8451 if name not in self.op.beparams:
8452 self.op.beparams[name] = value
8454 # try to read the parameters old style, from the main section
8455 for name in constants.BES_PARAMETERS:
8456 if (name not in self.op.beparams and
8457 einfo.has_option(constants.INISECT_INS, name)):
8458 self.op.beparams[name] = einfo.get(constants.INISECT_INS, name)
8460 if einfo.has_section(constants.INISECT_OSP):
8461 # use the parameters, without overriding
8462 for name, value in einfo.items(constants.INISECT_OSP):
8463 if name not in self.op.osparams:
8464 self.op.osparams[name] = value
8466 def _RevertToDefaults(self, cluster):
8467 """Revert the instance parameters to the default values.
8471 hv_defs = cluster.SimpleFillHV(self.op.hypervisor, self.op.os_type, {})
8472 for name in self.op.hvparams.keys():
8473 if name in hv_defs and hv_defs[name] == self.op.hvparams[name]:
8474 del self.op.hvparams[name]
8476 be_defs = cluster.SimpleFillBE({})
8477 for name in self.op.beparams.keys():
8478 if name in be_defs and be_defs[name] == self.op.beparams[name]:
8479 del self.op.beparams[name]
8481 nic_defs = cluster.SimpleFillNIC({})
8482 for nic in self.op.nics:
8483 for name in constants.NICS_PARAMETERS:
8484 if name in nic and name in nic_defs and nic[name] == nic_defs[name]:
8487 os_defs = cluster.SimpleFillOS(self.op.os_type, {})
8488 for name in self.op.osparams.keys():
8489 if name in os_defs and os_defs[name] == self.op.osparams[name]:
8490 del self.op.osparams[name]
8492 def _CalculateFileStorageDir(self):
8493 """Calculate final instance file storage dir.
8496 # file storage dir calculation/check
8497 self.instance_file_storage_dir = None
8498 if self.op.disk_template in constants.DTS_FILEBASED:
8499 # build the full file storage dir path
8502 if self.op.disk_template == constants.DT_SHARED_FILE:
8503 get_fsd_fn = self.cfg.GetSharedFileStorageDir
8505 get_fsd_fn = self.cfg.GetFileStorageDir
8507 cfg_storagedir = get_fsd_fn()
8508 if not cfg_storagedir:
8509 raise errors.OpPrereqError("Cluster file storage dir not defined")
8510 joinargs.append(cfg_storagedir)
8512 if self.op.file_storage_dir is not None:
8513 joinargs.append(self.op.file_storage_dir)
8515 joinargs.append(self.op.instance_name)
8517 # pylint: disable-msg=W0142
8518 self.instance_file_storage_dir = utils.PathJoin(*joinargs)
8520 def CheckPrereq(self):
8521 """Check prerequisites.
8524 self._CalculateFileStorageDir()
8526 if self.op.mode == constants.INSTANCE_IMPORT:
8527 export_info = self._ReadExportInfo()
8528 self._ReadExportParams(export_info)
8530 if (not self.cfg.GetVGName() and
8531 self.op.disk_template not in constants.DTS_NOT_LVM):
8532 raise errors.OpPrereqError("Cluster does not support lvm-based"
8533 " instances", errors.ECODE_STATE)
8535 if self.op.hypervisor is None:
8536 self.op.hypervisor = self.cfg.GetHypervisorType()
8538 cluster = self.cfg.GetClusterInfo()
8539 enabled_hvs = cluster.enabled_hypervisors
8540 if self.op.hypervisor not in enabled_hvs:
8541 raise errors.OpPrereqError("Selected hypervisor (%s) not enabled in the"
8542 " cluster (%s)" % (self.op.hypervisor,
8543 ",".join(enabled_hvs)),
8546 # Check tag validity
8547 for tag in self.op.tags:
8548 objects.TaggableObject.ValidateTag(tag)
8550 # check hypervisor parameter syntax (locally)
8551 utils.ForceDictType(self.op.hvparams, constants.HVS_PARAMETER_TYPES)
8552 filled_hvp = cluster.SimpleFillHV(self.op.hypervisor, self.op.os_type,
8554 hv_type = hypervisor.GetHypervisor(self.op.hypervisor)
8555 hv_type.CheckParameterSyntax(filled_hvp)
8556 self.hv_full = filled_hvp
8557 # check that we don't specify global parameters on an instance
8558 _CheckGlobalHvParams(self.op.hvparams)
8560 # fill and remember the beparams dict
8561 utils.ForceDictType(self.op.beparams, constants.BES_PARAMETER_TYPES)
8562 self.be_full = cluster.SimpleFillBE(self.op.beparams)
8564 # build os parameters
8565 self.os_full = cluster.SimpleFillOS(self.op.os_type, self.op.osparams)
8567 # now that hvp/bep are in final format, let's reset to defaults,
8569 if self.op.identify_defaults:
8570 self._RevertToDefaults(cluster)
8574 for idx, nic in enumerate(self.op.nics):
8575 nic_mode_req = nic.get(constants.INIC_MODE, None)
8576 nic_mode = nic_mode_req
8577 if nic_mode is None:
8578 nic_mode = cluster.nicparams[constants.PP_DEFAULT][constants.NIC_MODE]
8580 # in routed mode, for the first nic, the default ip is 'auto'
8581 if nic_mode == constants.NIC_MODE_ROUTED and idx == 0:
8582 default_ip_mode = constants.VALUE_AUTO
8584 default_ip_mode = constants.VALUE_NONE
8586 # ip validity checks
8587 ip = nic.get(constants.INIC_IP, default_ip_mode)
8588 if ip is None or ip.lower() == constants.VALUE_NONE:
8590 elif ip.lower() == constants.VALUE_AUTO:
8591 if not self.op.name_check:
8592 raise errors.OpPrereqError("IP address set to auto but name checks"
8593 " have been skipped",
8595 nic_ip = self.hostname1.ip
8597 if not netutils.IPAddress.IsValid(ip):
8598 raise errors.OpPrereqError("Invalid IP address '%s'" % ip,
8602 # TODO: check the ip address for uniqueness
8603 if nic_mode == constants.NIC_MODE_ROUTED and not nic_ip:
8604 raise errors.OpPrereqError("Routed nic mode requires an ip address",
8607 # MAC address verification
8608 mac = nic.get(constants.INIC_MAC, constants.VALUE_AUTO)
8609 if mac not in (constants.VALUE_AUTO, constants.VALUE_GENERATE):
8610 mac = utils.NormalizeAndValidateMac(mac)
8613 self.cfg.ReserveMAC(mac, self.proc.GetECId())
8614 except errors.ReservationError:
8615 raise errors.OpPrereqError("MAC address %s already in use"
8616 " in cluster" % mac,
8617 errors.ECODE_NOTUNIQUE)
8619 # Build nic parameters
8620 link = nic.get(constants.INIC_LINK, None)
8623 nicparams[constants.NIC_MODE] = nic_mode_req
8625 nicparams[constants.NIC_LINK] = link
8627 check_params = cluster.SimpleFillNIC(nicparams)
8628 objects.NIC.CheckParameterSyntax(check_params)
8629 self.nics.append(objects.NIC(mac=mac, ip=nic_ip, nicparams=nicparams))
8631 # disk checks/pre-build
8632 default_vg = self.cfg.GetVGName()
8634 for disk in self.op.disks:
8635 mode = disk.get(constants.IDISK_MODE, constants.DISK_RDWR)
8636 if mode not in constants.DISK_ACCESS_SET:
8637 raise errors.OpPrereqError("Invalid disk access mode '%s'" %
8638 mode, errors.ECODE_INVAL)
8639 size = disk.get(constants.IDISK_SIZE, None)
8641 raise errors.OpPrereqError("Missing disk size", errors.ECODE_INVAL)
8644 except (TypeError, ValueError):
8645 raise errors.OpPrereqError("Invalid disk size '%s'" % size,
8648 data_vg = disk.get(constants.IDISK_VG, default_vg)
8650 constants.IDISK_SIZE: size,
8651 constants.IDISK_MODE: mode,
8652 constants.IDISK_VG: data_vg,
8653 constants.IDISK_METAVG: disk.get(constants.IDISK_METAVG, data_vg),
8655 if constants.IDISK_ADOPT in disk:
8656 new_disk[constants.IDISK_ADOPT] = disk[constants.IDISK_ADOPT]
8657 self.disks.append(new_disk)
8659 if self.op.mode == constants.INSTANCE_IMPORT:
8661 # Check that the new instance doesn't have less disks than the export
8662 instance_disks = len(self.disks)
8663 export_disks = export_info.getint(constants.INISECT_INS, 'disk_count')
8664 if instance_disks < export_disks:
8665 raise errors.OpPrereqError("Not enough disks to import."
8666 " (instance: %d, export: %d)" %
8667 (instance_disks, export_disks),
8671 for idx in range(export_disks):
8672 option = "disk%d_dump" % idx
8673 if export_info.has_option(constants.INISECT_INS, option):
8674 # FIXME: are the old os-es, disk sizes, etc. useful?
8675 export_name = export_info.get(constants.INISECT_INS, option)
8676 image = utils.PathJoin(self.op.src_path, export_name)
8677 disk_images.append(image)
8679 disk_images.append(False)
8681 self.src_images = disk_images
8683 old_name = export_info.get(constants.INISECT_INS, "name")
8685 exp_nic_count = export_info.getint(constants.INISECT_INS, "nic_count")
8686 except (TypeError, ValueError), err:
8687 raise errors.OpPrereqError("Invalid export file, nic_count is not"
8688 " an integer: %s" % str(err),
8690 if self.op.instance_name == old_name:
8691 for idx, nic in enumerate(self.nics):
8692 if nic.mac == constants.VALUE_AUTO and exp_nic_count >= idx:
8693 nic_mac_ini = "nic%d_mac" % idx
8694 nic.mac = export_info.get(constants.INISECT_INS, nic_mac_ini)
8696 # ENDIF: self.op.mode == constants.INSTANCE_IMPORT
8698 # ip ping checks (we use the same ip that was resolved in ExpandNames)
8699 if self.op.ip_check:
8700 if netutils.TcpPing(self.check_ip, constants.DEFAULT_NODED_PORT):
8701 raise errors.OpPrereqError("IP %s of instance %s already in use" %
8702 (self.check_ip, self.op.instance_name),
8703 errors.ECODE_NOTUNIQUE)
8705 #### mac address generation
8706 # By generating here the mac address both the allocator and the hooks get
8707 # the real final mac address rather than the 'auto' or 'generate' value.
8708 # There is a race condition between the generation and the instance object
8709 # creation, which means that we know the mac is valid now, but we're not
8710 # sure it will be when we actually add the instance. If things go bad
8711 # adding the instance will abort because of a duplicate mac, and the
8712 # creation job will fail.
8713 for nic in self.nics:
8714 if nic.mac in (constants.VALUE_AUTO, constants.VALUE_GENERATE):
8715 nic.mac = self.cfg.GenerateMAC(self.proc.GetECId())
8719 if self.op.iallocator is not None:
8720 self._RunAllocator()
8722 #### node related checks
8724 # check primary node
8725 self.pnode = pnode = self.cfg.GetNodeInfo(self.op.pnode)
8726 assert self.pnode is not None, \
8727 "Cannot retrieve locked node %s" % self.op.pnode
8729 raise errors.OpPrereqError("Cannot use offline primary node '%s'" %
8730 pnode.name, errors.ECODE_STATE)
8732 raise errors.OpPrereqError("Cannot use drained primary node '%s'" %
8733 pnode.name, errors.ECODE_STATE)
8734 if not pnode.vm_capable:
8735 raise errors.OpPrereqError("Cannot use non-vm_capable primary node"
8736 " '%s'" % pnode.name, errors.ECODE_STATE)
8738 self.secondaries = []
8740 # mirror node verification
8741 if self.op.disk_template in constants.DTS_INT_MIRROR:
8742 if self.op.snode == pnode.name:
8743 raise errors.OpPrereqError("The secondary node cannot be the"
8744 " primary node", errors.ECODE_INVAL)
8745 _CheckNodeOnline(self, self.op.snode)
8746 _CheckNodeNotDrained(self, self.op.snode)
8747 _CheckNodeVmCapable(self, self.op.snode)
8748 self.secondaries.append(self.op.snode)
8750 nodenames = [pnode.name] + self.secondaries
8752 if not self.adopt_disks:
8753 # Check lv size requirements, if not adopting
8754 req_sizes = _ComputeDiskSizePerVG(self.op.disk_template, self.disks)
8755 _CheckNodesFreeDiskPerVG(self, nodenames, req_sizes)
8757 elif self.op.disk_template == constants.DT_PLAIN: # Check the adoption data
8758 all_lvs = set(["%s/%s" % (disk[constants.IDISK_VG],
8759 disk[constants.IDISK_ADOPT])
8760 for disk in self.disks])
8761 if len(all_lvs) != len(self.disks):
8762 raise errors.OpPrereqError("Duplicate volume names given for adoption",
8764 for lv_name in all_lvs:
8766 # FIXME: lv_name here is "vg/lv" need to ensure that other calls
8767 # to ReserveLV uses the same syntax
8768 self.cfg.ReserveLV(lv_name, self.proc.GetECId())
8769 except errors.ReservationError:
8770 raise errors.OpPrereqError("LV named %s used by another instance" %
8771 lv_name, errors.ECODE_NOTUNIQUE)
8773 vg_names = self.rpc.call_vg_list([pnode.name])[pnode.name]
8774 vg_names.Raise("Cannot get VG information from node %s" % pnode.name)
8776 node_lvs = self.rpc.call_lv_list([pnode.name],
8777 vg_names.payload.keys())[pnode.name]
8778 node_lvs.Raise("Cannot get LV information from node %s" % pnode.name)
8779 node_lvs = node_lvs.payload
8781 delta = all_lvs.difference(node_lvs.keys())
8783 raise errors.OpPrereqError("Missing logical volume(s): %s" %
8784 utils.CommaJoin(delta),
8786 online_lvs = [lv for lv in all_lvs if node_lvs[lv][2]]
8788 raise errors.OpPrereqError("Online logical volumes found, cannot"
8789 " adopt: %s" % utils.CommaJoin(online_lvs),
8791 # update the size of disk based on what is found
8792 for dsk in self.disks:
8793 dsk[constants.IDISK_SIZE] = \
8794 int(float(node_lvs["%s/%s" % (dsk[constants.IDISK_VG],
8795 dsk[constants.IDISK_ADOPT])][0]))
8797 elif self.op.disk_template == constants.DT_BLOCK:
8798 # Normalize and de-duplicate device paths
8799 all_disks = set([os.path.abspath(disk[constants.IDISK_ADOPT])
8800 for disk in self.disks])
8801 if len(all_disks) != len(self.disks):
8802 raise errors.OpPrereqError("Duplicate disk names given for adoption",
8804 baddisks = [d for d in all_disks
8805 if not d.startswith(constants.ADOPTABLE_BLOCKDEV_ROOT)]
8807 raise errors.OpPrereqError("Device node(s) %s lie outside %s and"
8808 " cannot be adopted" %
8809 (", ".join(baddisks),
8810 constants.ADOPTABLE_BLOCKDEV_ROOT),
8813 node_disks = self.rpc.call_bdev_sizes([pnode.name],
8814 list(all_disks))[pnode.name]
8815 node_disks.Raise("Cannot get block device information from node %s" %
8817 node_disks = node_disks.payload
8818 delta = all_disks.difference(node_disks.keys())
8820 raise errors.OpPrereqError("Missing block device(s): %s" %
8821 utils.CommaJoin(delta),
8823 for dsk in self.disks:
8824 dsk[constants.IDISK_SIZE] = \
8825 int(float(node_disks[dsk[constants.IDISK_ADOPT]]))
8827 _CheckHVParams(self, nodenames, self.op.hypervisor, self.op.hvparams)
8829 _CheckNodeHasOS(self, pnode.name, self.op.os_type, self.op.force_variant)
8830 # check OS parameters (remotely)
8831 _CheckOSParams(self, True, nodenames, self.op.os_type, self.os_full)
8833 _CheckNicsBridgesExist(self, self.nics, self.pnode.name)
8835 # memory check on primary node
8837 _CheckNodeFreeMemory(self, self.pnode.name,
8838 "creating instance %s" % self.op.instance_name,
8839 self.be_full[constants.BE_MEMORY],
8842 self.dry_run_result = list(nodenames)
8844 def Exec(self, feedback_fn):
8845 """Create and add the instance to the cluster.
8848 instance = self.op.instance_name
8849 pnode_name = self.pnode.name
8851 ht_kind = self.op.hypervisor
8852 if ht_kind in constants.HTS_REQ_PORT:
8853 network_port = self.cfg.AllocatePort()
8857 disks = _GenerateDiskTemplate(self,
8858 self.op.disk_template,
8859 instance, pnode_name,
8862 self.instance_file_storage_dir,
8863 self.op.file_driver,
8867 iobj = objects.Instance(name=instance, os=self.op.os_type,
8868 primary_node=pnode_name,
8869 nics=self.nics, disks=disks,
8870 disk_template=self.op.disk_template,
8872 network_port=network_port,
8873 beparams=self.op.beparams,
8874 hvparams=self.op.hvparams,
8875 hypervisor=self.op.hypervisor,
8876 osparams=self.op.osparams,
8880 for tag in self.op.tags:
8883 if self.adopt_disks:
8884 if self.op.disk_template == constants.DT_PLAIN:
8885 # rename LVs to the newly-generated names; we need to construct
8886 # 'fake' LV disks with the old data, plus the new unique_id
8887 tmp_disks = [objects.Disk.FromDict(v.ToDict()) for v in disks]
8889 for t_dsk, a_dsk in zip (tmp_disks, self.disks):
8890 rename_to.append(t_dsk.logical_id)
8891 t_dsk.logical_id = (t_dsk.logical_id[0], a_dsk[constants.IDISK_ADOPT])
8892 self.cfg.SetDiskID(t_dsk, pnode_name)
8893 result = self.rpc.call_blockdev_rename(pnode_name,
8894 zip(tmp_disks, rename_to))
8895 result.Raise("Failed to rename adoped LVs")
8897 feedback_fn("* creating instance disks...")
8899 _CreateDisks(self, iobj)
8900 except errors.OpExecError:
8901 self.LogWarning("Device creation failed, reverting...")
8903 _RemoveDisks(self, iobj)
8905 self.cfg.ReleaseDRBDMinors(instance)
8908 feedback_fn("adding instance %s to cluster config" % instance)
8910 self.cfg.AddInstance(iobj, self.proc.GetECId())
8912 # Declare that we don't want to remove the instance lock anymore, as we've
8913 # added the instance to the config
8914 del self.remove_locks[locking.LEVEL_INSTANCE]
8916 if self.op.mode == constants.INSTANCE_IMPORT:
8917 # Release unused nodes
8918 _ReleaseLocks(self, locking.LEVEL_NODE, keep=[self.op.src_node])
8921 _ReleaseLocks(self, locking.LEVEL_NODE)
8924 if not self.adopt_disks and self.cfg.GetClusterInfo().prealloc_wipe_disks:
8925 feedback_fn("* wiping instance disks...")
8927 _WipeDisks(self, iobj)
8928 except errors.OpExecError, err:
8929 logging.exception("Wiping disks failed")
8930 self.LogWarning("Wiping instance disks failed (%s)", err)
8934 # Something is already wrong with the disks, don't do anything else
8936 elif self.op.wait_for_sync:
8937 disk_abort = not _WaitForSync(self, iobj)
8938 elif iobj.disk_template in constants.DTS_INT_MIRROR:
8939 # make sure the disks are not degraded (still sync-ing is ok)
8940 feedback_fn("* checking mirrors status")
8941 disk_abort = not _WaitForSync(self, iobj, oneshot=True)
8946 _RemoveDisks(self, iobj)
8947 self.cfg.RemoveInstance(iobj.name)
8948 # Make sure the instance lock gets removed
8949 self.remove_locks[locking.LEVEL_INSTANCE] = iobj.name
8950 raise errors.OpExecError("There are some degraded disks for"
8953 if iobj.disk_template != constants.DT_DISKLESS and not self.adopt_disks:
8954 if self.op.mode == constants.INSTANCE_CREATE:
8955 if not self.op.no_install:
8956 pause_sync = (iobj.disk_template in constants.DTS_INT_MIRROR and
8957 not self.op.wait_for_sync)
8959 feedback_fn("* pausing disk sync to install instance OS")
8960 result = self.rpc.call_blockdev_pause_resume_sync(pnode_name,
8962 for idx, success in enumerate(result.payload):
8964 logging.warn("pause-sync of instance %s for disk %d failed",
8967 feedback_fn("* running the instance OS create scripts...")
8968 # FIXME: pass debug option from opcode to backend
8969 result = self.rpc.call_instance_os_add(pnode_name, iobj, False,
8970 self.op.debug_level)
8972 feedback_fn("* resuming disk sync")
8973 result = self.rpc.call_blockdev_pause_resume_sync(pnode_name,
8975 for idx, success in enumerate(result.payload):
8977 logging.warn("resume-sync of instance %s for disk %d failed",
8980 result.Raise("Could not add os for instance %s"
8981 " on node %s" % (instance, pnode_name))
8983 elif self.op.mode == constants.INSTANCE_IMPORT:
8984 feedback_fn("* running the instance OS import scripts...")
8988 for idx, image in enumerate(self.src_images):
8992 # FIXME: pass debug option from opcode to backend
8993 dt = masterd.instance.DiskTransfer("disk/%s" % idx,
8994 constants.IEIO_FILE, (image, ),
8995 constants.IEIO_SCRIPT,
8996 (iobj.disks[idx], idx),
8998 transfers.append(dt)
9001 masterd.instance.TransferInstanceData(self, feedback_fn,
9002 self.op.src_node, pnode_name,
9003 self.pnode.secondary_ip,
9005 if not compat.all(import_result):
9006 self.LogWarning("Some disks for instance %s on node %s were not"
9007 " imported successfully" % (instance, pnode_name))
9009 elif self.op.mode == constants.INSTANCE_REMOTE_IMPORT:
9010 feedback_fn("* preparing remote import...")
9011 # The source cluster will stop the instance before attempting to make a
9012 # connection. In some cases stopping an instance can take a long time,
9013 # hence the shutdown timeout is added to the connection timeout.
9014 connect_timeout = (constants.RIE_CONNECT_TIMEOUT +
9015 self.op.source_shutdown_timeout)
9016 timeouts = masterd.instance.ImportExportTimeouts(connect_timeout)
9018 assert iobj.primary_node == self.pnode.name
9020 masterd.instance.RemoteImport(self, feedback_fn, iobj, self.pnode,
9021 self.source_x509_ca,
9022 self._cds, timeouts)
9023 if not compat.all(disk_results):
9024 # TODO: Should the instance still be started, even if some disks
9025 # failed to import (valid for local imports, too)?
9026 self.LogWarning("Some disks for instance %s on node %s were not"
9027 " imported successfully" % (instance, pnode_name))
9029 # Run rename script on newly imported instance
9030 assert iobj.name == instance
9031 feedback_fn("Running rename script for %s" % instance)
9032 result = self.rpc.call_instance_run_rename(pnode_name, iobj,
9033 self.source_instance_name,
9034 self.op.debug_level)
9036 self.LogWarning("Failed to run rename script for %s on node"
9037 " %s: %s" % (instance, pnode_name, result.fail_msg))
9040 # also checked in the prereq part
9041 raise errors.ProgrammerError("Unknown OS initialization mode '%s'"
9045 iobj.admin_up = True
9046 self.cfg.Update(iobj, feedback_fn)
9047 logging.info("Starting instance %s on node %s", instance, pnode_name)
9048 feedback_fn("* starting instance...")
9049 result = self.rpc.call_instance_start(pnode_name, iobj,
9051 result.Raise("Could not start instance")
9053 return list(iobj.all_nodes)
9056 class LUInstanceConsole(NoHooksLU):
9057 """Connect to an instance's console.
9059 This is somewhat special in that it returns the command line that
9060 you need to run on the master node in order to connect to the
9066 def ExpandNames(self):
9067 self._ExpandAndLockInstance()
9069 def CheckPrereq(self):
9070 """Check prerequisites.
9072 This checks that the instance is in the cluster.
9075 self.instance = self.cfg.GetInstanceInfo(self.op.instance_name)
9076 assert self.instance is not None, \
9077 "Cannot retrieve locked instance %s" % self.op.instance_name
9078 _CheckNodeOnline(self, self.instance.primary_node)
9080 def Exec(self, feedback_fn):
9081 """Connect to the console of an instance
9084 instance = self.instance
9085 node = instance.primary_node
9087 node_insts = self.rpc.call_instance_list([node],
9088 [instance.hypervisor])[node]
9089 node_insts.Raise("Can't get node information from %s" % node)
9091 if instance.name not in node_insts.payload:
9092 if instance.admin_up:
9093 state = constants.INSTST_ERRORDOWN
9095 state = constants.INSTST_ADMINDOWN
9096 raise errors.OpExecError("Instance %s is not running (state %s)" %
9097 (instance.name, state))
9099 logging.debug("Connecting to console of %s on %s", instance.name, node)
9101 return _GetInstanceConsole(self.cfg.GetClusterInfo(), instance)
9104 def _GetInstanceConsole(cluster, instance):
9105 """Returns console information for an instance.
9107 @type cluster: L{objects.Cluster}
9108 @type instance: L{objects.Instance}
9112 hyper = hypervisor.GetHypervisor(instance.hypervisor)
9113 # beparams and hvparams are passed separately, to avoid editing the
9114 # instance and then saving the defaults in the instance itself.
9115 hvparams = cluster.FillHV(instance)
9116 beparams = cluster.FillBE(instance)
9117 console = hyper.GetInstanceConsole(instance, hvparams, beparams)
9119 assert console.instance == instance.name
9120 assert console.Validate()
9122 return console.ToDict()
9125 class LUInstanceReplaceDisks(LogicalUnit):
9126 """Replace the disks of an instance.
9129 HPATH = "mirrors-replace"
9130 HTYPE = constants.HTYPE_INSTANCE
9133 def CheckArguments(self):
9134 TLReplaceDisks.CheckArguments(self.op.mode, self.op.remote_node,
9137 def ExpandNames(self):
9138 self._ExpandAndLockInstance()
9140 assert locking.LEVEL_NODE not in self.needed_locks
9141 assert locking.LEVEL_NODEGROUP not in self.needed_locks
9143 assert self.op.iallocator is None or self.op.remote_node is None, \
9144 "Conflicting options"
9146 if self.op.remote_node is not None:
9147 self.op.remote_node = _ExpandNodeName(self.cfg, self.op.remote_node)
9149 # Warning: do not remove the locking of the new secondary here
9150 # unless DRBD8.AddChildren is changed to work in parallel;
9151 # currently it doesn't since parallel invocations of
9152 # FindUnusedMinor will conflict
9153 self.needed_locks[locking.LEVEL_NODE] = [self.op.remote_node]
9154 self.recalculate_locks[locking.LEVEL_NODE] = constants.LOCKS_APPEND
9156 self.needed_locks[locking.LEVEL_NODE] = []
9157 self.recalculate_locks[locking.LEVEL_NODE] = constants.LOCKS_REPLACE
9159 if self.op.iallocator is not None:
9160 # iallocator will select a new node in the same group
9161 self.needed_locks[locking.LEVEL_NODEGROUP] = []
9163 self.replacer = TLReplaceDisks(self, self.op.instance_name, self.op.mode,
9164 self.op.iallocator, self.op.remote_node,
9165 self.op.disks, False, self.op.early_release)
9167 self.tasklets = [self.replacer]
9169 def DeclareLocks(self, level):
9170 if level == locking.LEVEL_NODEGROUP:
9171 assert self.op.remote_node is None
9172 assert self.op.iallocator is not None
9173 assert not self.needed_locks[locking.LEVEL_NODEGROUP]
9175 self.share_locks[locking.LEVEL_NODEGROUP] = 1
9176 self.needed_locks[locking.LEVEL_NODEGROUP] = \
9177 self.cfg.GetInstanceNodeGroups(self.op.instance_name)
9179 elif level == locking.LEVEL_NODE:
9180 if self.op.iallocator is not None:
9181 assert self.op.remote_node is None
9182 assert not self.needed_locks[locking.LEVEL_NODE]
9184 # Lock member nodes of all locked groups
9185 self.needed_locks[locking.LEVEL_NODE] = [node_name
9186 for group_uuid in self.owned_locks(locking.LEVEL_NODEGROUP)
9187 for node_name in self.cfg.GetNodeGroup(group_uuid).members]
9189 self._LockInstancesNodes()
9191 def BuildHooksEnv(self):
9194 This runs on the master, the primary and all the secondaries.
9197 instance = self.replacer.instance
9199 "MODE": self.op.mode,
9200 "NEW_SECONDARY": self.op.remote_node,
9201 "OLD_SECONDARY": instance.secondary_nodes[0],
9203 env.update(_BuildInstanceHookEnvByObject(self, instance))
9206 def BuildHooksNodes(self):
9207 """Build hooks nodes.
9210 instance = self.replacer.instance
9212 self.cfg.GetMasterNode(),
9213 instance.primary_node,
9215 if self.op.remote_node is not None:
9216 nl.append(self.op.remote_node)
9219 def CheckPrereq(self):
9220 """Check prerequisites.
9223 assert (self.glm.is_owned(locking.LEVEL_NODEGROUP) or
9224 self.op.iallocator is None)
9226 owned_groups = self.owned_locks(locking.LEVEL_NODEGROUP)
9228 _CheckInstanceNodeGroups(self.cfg, self.op.instance_name, owned_groups)
9230 return LogicalUnit.CheckPrereq(self)
9233 class TLReplaceDisks(Tasklet):
9234 """Replaces disks for an instance.
9236 Note: Locking is not within the scope of this class.
9239 def __init__(self, lu, instance_name, mode, iallocator_name, remote_node,
9240 disks, delay_iallocator, early_release):
9241 """Initializes this class.
9244 Tasklet.__init__(self, lu)
9247 self.instance_name = instance_name
9249 self.iallocator_name = iallocator_name
9250 self.remote_node = remote_node
9252 self.delay_iallocator = delay_iallocator
9253 self.early_release = early_release
9256 self.instance = None
9257 self.new_node = None
9258 self.target_node = None
9259 self.other_node = None
9260 self.remote_node_info = None
9261 self.node_secondary_ip = None
9264 def CheckArguments(mode, remote_node, iallocator):
9265 """Helper function for users of this class.
9268 # check for valid parameter combination
9269 if mode == constants.REPLACE_DISK_CHG:
9270 if remote_node is None and iallocator is None:
9271 raise errors.OpPrereqError("When changing the secondary either an"
9272 " iallocator script must be used or the"
9273 " new node given", errors.ECODE_INVAL)
9275 if remote_node is not None and iallocator is not None:
9276 raise errors.OpPrereqError("Give either the iallocator or the new"
9277 " secondary, not both", errors.ECODE_INVAL)
9279 elif remote_node is not None or iallocator is not None:
9280 # Not replacing the secondary
9281 raise errors.OpPrereqError("The iallocator and new node options can"
9282 " only be used when changing the"
9283 " secondary node", errors.ECODE_INVAL)
9286 def _RunAllocator(lu, iallocator_name, instance_name, relocate_from):
9287 """Compute a new secondary node using an IAllocator.
9290 ial = IAllocator(lu.cfg, lu.rpc,
9291 mode=constants.IALLOCATOR_MODE_RELOC,
9293 relocate_from=list(relocate_from))
9295 ial.Run(iallocator_name)
9298 raise errors.OpPrereqError("Can't compute nodes using iallocator '%s':"
9299 " %s" % (iallocator_name, ial.info),
9302 if len(ial.result) != ial.required_nodes:
9303 raise errors.OpPrereqError("iallocator '%s' returned invalid number"
9304 " of nodes (%s), required %s" %
9306 len(ial.result), ial.required_nodes),
9309 remote_node_name = ial.result[0]
9311 lu.LogInfo("Selected new secondary for instance '%s': %s",
9312 instance_name, remote_node_name)
9314 return remote_node_name
9316 def _FindFaultyDisks(self, node_name):
9317 """Wrapper for L{_FindFaultyInstanceDisks}.
9320 return _FindFaultyInstanceDisks(self.cfg, self.rpc, self.instance,
9323 def _CheckDisksActivated(self, instance):
9324 """Checks if the instance disks are activated.
9326 @param instance: The instance to check disks
9327 @return: True if they are activated, False otherwise
9330 nodes = instance.all_nodes
9332 for idx, dev in enumerate(instance.disks):
9334 self.lu.LogInfo("Checking disk/%d on %s", idx, node)
9335 self.cfg.SetDiskID(dev, node)
9337 result = self.rpc.call_blockdev_find(node, dev)
9341 elif result.fail_msg or not result.payload:
9346 def CheckPrereq(self):
9347 """Check prerequisites.
9349 This checks that the instance is in the cluster.
9352 self.instance = instance = self.cfg.GetInstanceInfo(self.instance_name)
9353 assert instance is not None, \
9354 "Cannot retrieve locked instance %s" % self.instance_name
9356 if instance.disk_template != constants.DT_DRBD8:
9357 raise errors.OpPrereqError("Can only run replace disks for DRBD8-based"
9358 " instances", errors.ECODE_INVAL)
9360 if len(instance.secondary_nodes) != 1:
9361 raise errors.OpPrereqError("The instance has a strange layout,"
9362 " expected one secondary but found %d" %
9363 len(instance.secondary_nodes),
9366 if not self.delay_iallocator:
9367 self._CheckPrereq2()
9369 def _CheckPrereq2(self):
9370 """Check prerequisites, second part.
9372 This function should always be part of CheckPrereq. It was separated and is
9373 now called from Exec because during node evacuation iallocator was only
9374 called with an unmodified cluster model, not taking planned changes into
9378 instance = self.instance
9379 secondary_node = instance.secondary_nodes[0]
9381 if self.iallocator_name is None:
9382 remote_node = self.remote_node
9384 remote_node = self._RunAllocator(self.lu, self.iallocator_name,
9385 instance.name, instance.secondary_nodes)
9387 if remote_node is None:
9388 self.remote_node_info = None
9390 assert remote_node in self.lu.owned_locks(locking.LEVEL_NODE), \
9391 "Remote node '%s' is not locked" % remote_node
9393 self.remote_node_info = self.cfg.GetNodeInfo(remote_node)
9394 assert self.remote_node_info is not None, \
9395 "Cannot retrieve locked node %s" % remote_node
9397 if remote_node == self.instance.primary_node:
9398 raise errors.OpPrereqError("The specified node is the primary node of"
9399 " the instance", errors.ECODE_INVAL)
9401 if remote_node == secondary_node:
9402 raise errors.OpPrereqError("The specified node is already the"
9403 " secondary node of the instance",
9406 if self.disks and self.mode in (constants.REPLACE_DISK_AUTO,
9407 constants.REPLACE_DISK_CHG):
9408 raise errors.OpPrereqError("Cannot specify disks to be replaced",
9411 if self.mode == constants.REPLACE_DISK_AUTO:
9412 if not self._CheckDisksActivated(instance):
9413 raise errors.OpPrereqError("Please run activate-disks on instance %s"
9414 " first" % self.instance_name,
9416 faulty_primary = self._FindFaultyDisks(instance.primary_node)
9417 faulty_secondary = self._FindFaultyDisks(secondary_node)
9419 if faulty_primary and faulty_secondary:
9420 raise errors.OpPrereqError("Instance %s has faulty disks on more than"
9421 " one node and can not be repaired"
9422 " automatically" % self.instance_name,
9426 self.disks = faulty_primary
9427 self.target_node = instance.primary_node
9428 self.other_node = secondary_node
9429 check_nodes = [self.target_node, self.other_node]
9430 elif faulty_secondary:
9431 self.disks = faulty_secondary
9432 self.target_node = secondary_node
9433 self.other_node = instance.primary_node
9434 check_nodes = [self.target_node, self.other_node]
9440 # Non-automatic modes
9441 if self.mode == constants.REPLACE_DISK_PRI:
9442 self.target_node = instance.primary_node
9443 self.other_node = secondary_node
9444 check_nodes = [self.target_node, self.other_node]
9446 elif self.mode == constants.REPLACE_DISK_SEC:
9447 self.target_node = secondary_node
9448 self.other_node = instance.primary_node
9449 check_nodes = [self.target_node, self.other_node]
9451 elif self.mode == constants.REPLACE_DISK_CHG:
9452 self.new_node = remote_node
9453 self.other_node = instance.primary_node
9454 self.target_node = secondary_node
9455 check_nodes = [self.new_node, self.other_node]
9457 _CheckNodeNotDrained(self.lu, remote_node)
9458 _CheckNodeVmCapable(self.lu, remote_node)
9460 old_node_info = self.cfg.GetNodeInfo(secondary_node)
9461 assert old_node_info is not None
9462 if old_node_info.offline and not self.early_release:
9463 # doesn't make sense to delay the release
9464 self.early_release = True
9465 self.lu.LogInfo("Old secondary %s is offline, automatically enabling"
9466 " early-release mode", secondary_node)
9469 raise errors.ProgrammerError("Unhandled disk replace mode (%s)" %
9472 # If not specified all disks should be replaced
9474 self.disks = range(len(self.instance.disks))
9476 for node in check_nodes:
9477 _CheckNodeOnline(self.lu, node)
9479 touched_nodes = frozenset(node_name for node_name in [self.new_node,
9482 if node_name is not None)
9484 # Release unneeded node locks
9485 _ReleaseLocks(self.lu, locking.LEVEL_NODE, keep=touched_nodes)
9487 # Release any owned node group
9488 if self.lu.glm.is_owned(locking.LEVEL_NODEGROUP):
9489 _ReleaseLocks(self.lu, locking.LEVEL_NODEGROUP)
9491 # Check whether disks are valid
9492 for disk_idx in self.disks:
9493 instance.FindDisk(disk_idx)
9495 # Get secondary node IP addresses
9496 self.node_secondary_ip = dict((name, node.secondary_ip) for (name, node)
9497 in self.cfg.GetMultiNodeInfo(touched_nodes))
9499 def Exec(self, feedback_fn):
9500 """Execute disk replacement.
9502 This dispatches the disk replacement to the appropriate handler.
9505 if self.delay_iallocator:
9506 self._CheckPrereq2()
9509 # Verify owned locks before starting operation
9510 owned_nodes = self.lu.owned_locks(locking.LEVEL_NODE)
9511 assert set(owned_nodes) == set(self.node_secondary_ip), \
9512 ("Incorrect node locks, owning %s, expected %s" %
9513 (owned_nodes, self.node_secondary_ip.keys()))
9515 owned_instances = self.lu.owned_locks(locking.LEVEL_INSTANCE)
9516 assert list(owned_instances) == [self.instance_name], \
9517 "Instance '%s' not locked" % self.instance_name
9519 assert not self.lu.glm.is_owned(locking.LEVEL_NODEGROUP), \
9520 "Should not own any node group lock at this point"
9523 feedback_fn("No disks need replacement")
9526 feedback_fn("Replacing disk(s) %s for %s" %
9527 (utils.CommaJoin(self.disks), self.instance.name))
9529 activate_disks = (not self.instance.admin_up)
9531 # Activate the instance disks if we're replacing them on a down instance
9533 _StartInstanceDisks(self.lu, self.instance, True)
9536 # Should we replace the secondary node?
9537 if self.new_node is not None:
9538 fn = self._ExecDrbd8Secondary
9540 fn = self._ExecDrbd8DiskOnly
9542 result = fn(feedback_fn)
9544 # Deactivate the instance disks if we're replacing them on a
9547 _SafeShutdownInstanceDisks(self.lu, self.instance)
9550 # Verify owned locks
9551 owned_nodes = self.lu.owned_locks(locking.LEVEL_NODE)
9552 nodes = frozenset(self.node_secondary_ip)
9553 assert ((self.early_release and not owned_nodes) or
9554 (not self.early_release and not (set(owned_nodes) - nodes))), \
9555 ("Not owning the correct locks, early_release=%s, owned=%r,"
9556 " nodes=%r" % (self.early_release, owned_nodes, nodes))
9560 def _CheckVolumeGroup(self, nodes):
9561 self.lu.LogInfo("Checking volume groups")
9563 vgname = self.cfg.GetVGName()
9565 # Make sure volume group exists on all involved nodes
9566 results = self.rpc.call_vg_list(nodes)
9568 raise errors.OpExecError("Can't list volume groups on the nodes")
9572 res.Raise("Error checking node %s" % node)
9573 if vgname not in res.payload:
9574 raise errors.OpExecError("Volume group '%s' not found on node %s" %
9577 def _CheckDisksExistence(self, nodes):
9578 # Check disk existence
9579 for idx, dev in enumerate(self.instance.disks):
9580 if idx not in self.disks:
9584 self.lu.LogInfo("Checking disk/%d on %s" % (idx, node))
9585 self.cfg.SetDiskID(dev, node)
9587 result = self.rpc.call_blockdev_find(node, dev)
9589 msg = result.fail_msg
9590 if msg or not result.payload:
9592 msg = "disk not found"
9593 raise errors.OpExecError("Can't find disk/%d on node %s: %s" %
9596 def _CheckDisksConsistency(self, node_name, on_primary, ldisk):
9597 for idx, dev in enumerate(self.instance.disks):
9598 if idx not in self.disks:
9601 self.lu.LogInfo("Checking disk/%d consistency on node %s" %
9604 if not _CheckDiskConsistency(self.lu, dev, node_name, on_primary,
9606 raise errors.OpExecError("Node %s has degraded storage, unsafe to"
9607 " replace disks for instance %s" %
9608 (node_name, self.instance.name))
9610 def _CreateNewStorage(self, node_name):
9611 """Create new storage on the primary or secondary node.
9613 This is only used for same-node replaces, not for changing the
9614 secondary node, hence we don't want to modify the existing disk.
9619 for idx, dev in enumerate(self.instance.disks):
9620 if idx not in self.disks:
9623 self.lu.LogInfo("Adding storage on %s for disk/%d" % (node_name, idx))
9625 self.cfg.SetDiskID(dev, node_name)
9627 lv_names = [".disk%d_%s" % (idx, suffix) for suffix in ["data", "meta"]]
9628 names = _GenerateUniqueNames(self.lu, lv_names)
9630 vg_data = dev.children[0].logical_id[0]
9631 lv_data = objects.Disk(dev_type=constants.LD_LV, size=dev.size,
9632 logical_id=(vg_data, names[0]))
9633 vg_meta = dev.children[1].logical_id[0]
9634 lv_meta = objects.Disk(dev_type=constants.LD_LV, size=128,
9635 logical_id=(vg_meta, names[1]))
9637 new_lvs = [lv_data, lv_meta]
9638 old_lvs = [child.Copy() for child in dev.children]
9639 iv_names[dev.iv_name] = (dev, old_lvs, new_lvs)
9641 # we pass force_create=True to force the LVM creation
9642 for new_lv in new_lvs:
9643 _CreateBlockDev(self.lu, node_name, self.instance, new_lv, True,
9644 _GetInstanceInfoText(self.instance), False)
9648 def _CheckDevices(self, node_name, iv_names):
9649 for name, (dev, _, _) in iv_names.iteritems():
9650 self.cfg.SetDiskID(dev, node_name)
9652 result = self.rpc.call_blockdev_find(node_name, 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 DRBD device %s: %s" %
9661 if result.payload.is_degraded:
9662 raise errors.OpExecError("DRBD device %s is degraded!" % name)
9664 def _RemoveOldStorage(self, node_name, iv_names):
9665 for name, (_, old_lvs, _) in iv_names.iteritems():
9666 self.lu.LogInfo("Remove logical volumes for %s" % name)
9669 self.cfg.SetDiskID(lv, node_name)
9671 msg = self.rpc.call_blockdev_remove(node_name, lv).fail_msg
9673 self.lu.LogWarning("Can't remove old LV: %s" % msg,
9674 hint="remove unused LVs manually")
9676 def _ExecDrbd8DiskOnly(self, feedback_fn): # pylint: disable-msg=W0613
9677 """Replace a disk on the primary or secondary for DRBD 8.
9679 The algorithm for replace is quite complicated:
9681 1. for each disk to be replaced:
9683 1. create new LVs on the target node with unique names
9684 1. detach old LVs from the drbd device
9685 1. rename old LVs to name_replaced.<time_t>
9686 1. rename new LVs to old LVs
9687 1. attach the new LVs (with the old names now) to the drbd device
9689 1. wait for sync across all devices
9691 1. for each modified disk:
9693 1. remove old LVs (which have the name name_replaces.<time_t>)
9695 Failures are not very well handled.
9700 # Step: check device activation
9701 self.lu.LogStep(1, steps_total, "Check device existence")
9702 self._CheckDisksExistence([self.other_node, self.target_node])
9703 self._CheckVolumeGroup([self.target_node, self.other_node])
9705 # Step: check other node consistency
9706 self.lu.LogStep(2, steps_total, "Check peer consistency")
9707 self._CheckDisksConsistency(self.other_node,
9708 self.other_node == self.instance.primary_node,
9711 # Step: create new storage
9712 self.lu.LogStep(3, steps_total, "Allocate new storage")
9713 iv_names = self._CreateNewStorage(self.target_node)
9715 # Step: for each lv, detach+rename*2+attach
9716 self.lu.LogStep(4, steps_total, "Changing drbd configuration")
9717 for dev, old_lvs, new_lvs in iv_names.itervalues():
9718 self.lu.LogInfo("Detaching %s drbd from local storage" % dev.iv_name)
9720 result = self.rpc.call_blockdev_removechildren(self.target_node, dev,
9722 result.Raise("Can't detach drbd from local storage on node"
9723 " %s for device %s" % (self.target_node, dev.iv_name))
9725 #cfg.Update(instance)
9727 # ok, we created the new LVs, so now we know we have the needed
9728 # storage; as such, we proceed on the target node to rename
9729 # old_lv to _old, and new_lv to old_lv; note that we rename LVs
9730 # using the assumption that logical_id == physical_id (which in
9731 # turn is the unique_id on that node)
9733 # FIXME(iustin): use a better name for the replaced LVs
9734 temp_suffix = int(time.time())
9735 ren_fn = lambda d, suff: (d.physical_id[0],
9736 d.physical_id[1] + "_replaced-%s" % suff)
9738 # Build the rename list based on what LVs exist on the node
9739 rename_old_to_new = []
9740 for to_ren in old_lvs:
9741 result = self.rpc.call_blockdev_find(self.target_node, to_ren)
9742 if not result.fail_msg and result.payload:
9744 rename_old_to_new.append((to_ren, ren_fn(to_ren, temp_suffix)))
9746 self.lu.LogInfo("Renaming the old LVs on the target node")
9747 result = self.rpc.call_blockdev_rename(self.target_node,
9749 result.Raise("Can't rename old LVs on node %s" % self.target_node)
9751 # Now we rename the new LVs to the old LVs
9752 self.lu.LogInfo("Renaming the new LVs on the target node")
9753 rename_new_to_old = [(new, old.physical_id)
9754 for old, new in zip(old_lvs, new_lvs)]
9755 result = self.rpc.call_blockdev_rename(self.target_node,
9757 result.Raise("Can't rename new LVs on node %s" % self.target_node)
9759 # Intermediate steps of in memory modifications
9760 for old, new in zip(old_lvs, new_lvs):
9761 new.logical_id = old.logical_id
9762 self.cfg.SetDiskID(new, self.target_node)
9764 # We need to modify old_lvs so that removal later removes the
9765 # right LVs, not the newly added ones; note that old_lvs is a
9767 for disk in old_lvs:
9768 disk.logical_id = ren_fn(disk, temp_suffix)
9769 self.cfg.SetDiskID(disk, self.target_node)
9771 # Now that the new lvs have the old name, we can add them to the device
9772 self.lu.LogInfo("Adding new mirror component on %s" % self.target_node)
9773 result = self.rpc.call_blockdev_addchildren(self.target_node, dev,
9775 msg = result.fail_msg
9777 for new_lv in new_lvs:
9778 msg2 = self.rpc.call_blockdev_remove(self.target_node,
9781 self.lu.LogWarning("Can't rollback device %s: %s", dev, msg2,
9782 hint=("cleanup manually the unused logical"
9784 raise errors.OpExecError("Can't add local storage to drbd: %s" % msg)
9787 if self.early_release:
9788 self.lu.LogStep(cstep, steps_total, "Removing old storage")
9790 self._RemoveOldStorage(self.target_node, iv_names)
9791 # WARNING: we release both node locks here, do not do other RPCs
9792 # than WaitForSync to the primary node
9793 _ReleaseLocks(self.lu, locking.LEVEL_NODE,
9794 names=[self.target_node, self.other_node])
9797 # This can fail as the old devices are degraded and _WaitForSync
9798 # does a combined result over all disks, so we don't check its return value
9799 self.lu.LogStep(cstep, steps_total, "Sync devices")
9801 _WaitForSync(self.lu, self.instance)
9803 # Check all devices manually
9804 self._CheckDevices(self.instance.primary_node, iv_names)
9806 # Step: remove old storage
9807 if not self.early_release:
9808 self.lu.LogStep(cstep, steps_total, "Removing old storage")
9810 self._RemoveOldStorage(self.target_node, iv_names)
9812 def _ExecDrbd8Secondary(self, feedback_fn):
9813 """Replace the secondary node for DRBD 8.
9815 The algorithm for replace is quite complicated:
9816 - for all disks of the instance:
9817 - create new LVs on the new node with same names
9818 - shutdown the drbd device on the old secondary
9819 - disconnect the drbd network on the primary
9820 - create the drbd device on the new secondary
9821 - network attach the drbd on the primary, using an artifice:
9822 the drbd code for Attach() will connect to the network if it
9823 finds a device which is connected to the good local disks but
9825 - wait for sync across all devices
9826 - remove all disks from the old secondary
9828 Failures are not very well handled.
9833 # Step: check device activation
9834 self.lu.LogStep(1, steps_total, "Check device existence")
9835 self._CheckDisksExistence([self.instance.primary_node])
9836 self._CheckVolumeGroup([self.instance.primary_node])
9838 # Step: check other node consistency
9839 self.lu.LogStep(2, steps_total, "Check peer consistency")
9840 self._CheckDisksConsistency(self.instance.primary_node, True, True)
9842 # Step: create new storage
9843 self.lu.LogStep(3, steps_total, "Allocate new storage")
9844 for idx, dev in enumerate(self.instance.disks):
9845 self.lu.LogInfo("Adding new local storage on %s for disk/%d" %
9846 (self.new_node, idx))
9847 # we pass force_create=True to force LVM creation
9848 for new_lv in dev.children:
9849 _CreateBlockDev(self.lu, self.new_node, self.instance, new_lv, True,
9850 _GetInstanceInfoText(self.instance), False)
9852 # Step 4: dbrd minors and drbd setups changes
9853 # after this, we must manually remove the drbd minors on both the
9854 # error and the success paths
9855 self.lu.LogStep(4, steps_total, "Changing drbd configuration")
9856 minors = self.cfg.AllocateDRBDMinor([self.new_node
9857 for dev in self.instance.disks],
9859 logging.debug("Allocated minors %r", minors)
9862 for idx, (dev, new_minor) in enumerate(zip(self.instance.disks, minors)):
9863 self.lu.LogInfo("activating a new drbd on %s for disk/%d" %
9864 (self.new_node, idx))
9865 # create new devices on new_node; note that we create two IDs:
9866 # one without port, so the drbd will be activated without
9867 # networking information on the new node at this stage, and one
9868 # with network, for the latter activation in step 4
9869 (o_node1, o_node2, o_port, o_minor1, o_minor2, o_secret) = dev.logical_id
9870 if self.instance.primary_node == o_node1:
9873 assert self.instance.primary_node == o_node2, "Three-node instance?"
9876 new_alone_id = (self.instance.primary_node, self.new_node, None,
9877 p_minor, new_minor, o_secret)
9878 new_net_id = (self.instance.primary_node, self.new_node, o_port,
9879 p_minor, new_minor, o_secret)
9881 iv_names[idx] = (dev, dev.children, new_net_id)
9882 logging.debug("Allocated new_minor: %s, new_logical_id: %s", new_minor,
9884 new_drbd = objects.Disk(dev_type=constants.LD_DRBD8,
9885 logical_id=new_alone_id,
9886 children=dev.children,
9889 _CreateSingleBlockDev(self.lu, self.new_node, self.instance, new_drbd,
9890 _GetInstanceInfoText(self.instance), False)
9891 except errors.GenericError:
9892 self.cfg.ReleaseDRBDMinors(self.instance.name)
9895 # We have new devices, shutdown the drbd on the old secondary
9896 for idx, dev in enumerate(self.instance.disks):
9897 self.lu.LogInfo("Shutting down drbd for disk/%d on old node" % idx)
9898 self.cfg.SetDiskID(dev, self.target_node)
9899 msg = self.rpc.call_blockdev_shutdown(self.target_node, dev).fail_msg
9901 self.lu.LogWarning("Failed to shutdown drbd for disk/%d on old"
9902 "node: %s" % (idx, msg),
9903 hint=("Please cleanup this device manually as"
9904 " soon as possible"))
9906 self.lu.LogInfo("Detaching primary drbds from the network (=> standalone)")
9907 result = self.rpc.call_drbd_disconnect_net([self.instance.primary_node],
9908 self.node_secondary_ip,
9909 self.instance.disks)\
9910 [self.instance.primary_node]
9912 msg = result.fail_msg
9914 # detaches didn't succeed (unlikely)
9915 self.cfg.ReleaseDRBDMinors(self.instance.name)
9916 raise errors.OpExecError("Can't detach the disks from the network on"
9917 " old node: %s" % (msg,))
9919 # if we managed to detach at least one, we update all the disks of
9920 # the instance to point to the new secondary
9921 self.lu.LogInfo("Updating instance configuration")
9922 for dev, _, new_logical_id in iv_names.itervalues():
9923 dev.logical_id = new_logical_id
9924 self.cfg.SetDiskID(dev, self.instance.primary_node)
9926 self.cfg.Update(self.instance, feedback_fn)
9928 # and now perform the drbd attach
9929 self.lu.LogInfo("Attaching primary drbds to new secondary"
9930 " (standalone => connected)")
9931 result = self.rpc.call_drbd_attach_net([self.instance.primary_node,
9933 self.node_secondary_ip,
9934 self.instance.disks,
9937 for to_node, to_result in result.items():
9938 msg = to_result.fail_msg
9940 self.lu.LogWarning("Can't attach drbd disks on node %s: %s",
9942 hint=("please do a gnt-instance info to see the"
9943 " status of disks"))
9945 if self.early_release:
9946 self.lu.LogStep(cstep, steps_total, "Removing old storage")
9948 self._RemoveOldStorage(self.target_node, iv_names)
9949 # WARNING: we release all node locks here, do not do other RPCs
9950 # than WaitForSync to the primary node
9951 _ReleaseLocks(self.lu, locking.LEVEL_NODE,
9952 names=[self.instance.primary_node,
9957 # This can fail as the old devices are degraded and _WaitForSync
9958 # does a combined result over all disks, so we don't check its return value
9959 self.lu.LogStep(cstep, steps_total, "Sync devices")
9961 _WaitForSync(self.lu, self.instance)
9963 # Check all devices manually
9964 self._CheckDevices(self.instance.primary_node, iv_names)
9966 # Step: remove old storage
9967 if not self.early_release:
9968 self.lu.LogStep(cstep, steps_total, "Removing old storage")
9969 self._RemoveOldStorage(self.target_node, iv_names)
9972 class LURepairNodeStorage(NoHooksLU):
9973 """Repairs the volume group on a node.
9978 def CheckArguments(self):
9979 self.op.node_name = _ExpandNodeName(self.cfg, self.op.node_name)
9981 storage_type = self.op.storage_type
9983 if (constants.SO_FIX_CONSISTENCY not in
9984 constants.VALID_STORAGE_OPERATIONS.get(storage_type, [])):
9985 raise errors.OpPrereqError("Storage units of type '%s' can not be"
9986 " repaired" % storage_type,
9989 def ExpandNames(self):
9990 self.needed_locks = {
9991 locking.LEVEL_NODE: [self.op.node_name],
9994 def _CheckFaultyDisks(self, instance, node_name):
9995 """Ensure faulty disks abort the opcode or at least warn."""
9997 if _FindFaultyInstanceDisks(self.cfg, self.rpc, instance,
9999 raise errors.OpPrereqError("Instance '%s' has faulty disks on"
10000 " node '%s'" % (instance.name, node_name),
10001 errors.ECODE_STATE)
10002 except errors.OpPrereqError, err:
10003 if self.op.ignore_consistency:
10004 self.proc.LogWarning(str(err.args[0]))
10008 def CheckPrereq(self):
10009 """Check prerequisites.
10012 # Check whether any instance on this node has faulty disks
10013 for inst in _GetNodeInstances(self.cfg, self.op.node_name):
10014 if not inst.admin_up:
10016 check_nodes = set(inst.all_nodes)
10017 check_nodes.discard(self.op.node_name)
10018 for inst_node_name in check_nodes:
10019 self._CheckFaultyDisks(inst, inst_node_name)
10021 def Exec(self, feedback_fn):
10022 feedback_fn("Repairing storage unit '%s' on %s ..." %
10023 (self.op.name, self.op.node_name))
10025 st_args = _GetStorageTypeArgs(self.cfg, self.op.storage_type)
10026 result = self.rpc.call_storage_execute(self.op.node_name,
10027 self.op.storage_type, st_args,
10029 constants.SO_FIX_CONSISTENCY)
10030 result.Raise("Failed to repair storage unit '%s' on %s" %
10031 (self.op.name, self.op.node_name))
10034 class LUNodeEvacuate(NoHooksLU):
10035 """Evacuates instances off a list of nodes.
10040 def CheckArguments(self):
10041 _CheckIAllocatorOrNode(self, "iallocator", "remote_node")
10043 def ExpandNames(self):
10044 self.op.node_name = _ExpandNodeName(self.cfg, self.op.node_name)
10046 if self.op.remote_node is not None:
10047 self.op.remote_node = _ExpandNodeName(self.cfg, self.op.remote_node)
10048 assert self.op.remote_node
10050 if self.op.remote_node == self.op.node_name:
10051 raise errors.OpPrereqError("Can not use evacuated node as a new"
10052 " secondary node", errors.ECODE_INVAL)
10054 if self.op.mode != constants.IALLOCATOR_NEVAC_SEC:
10055 raise errors.OpPrereqError("Without the use of an iallocator only"
10056 " secondary instances can be evacuated",
10057 errors.ECODE_INVAL)
10060 self.share_locks = _ShareAll()
10061 self.needed_locks = {
10062 locking.LEVEL_INSTANCE: [],
10063 locking.LEVEL_NODEGROUP: [],
10064 locking.LEVEL_NODE: [],
10067 if self.op.remote_node is None:
10068 # Iallocator will choose any node(s) in the same group
10069 group_nodes = self.cfg.GetNodeGroupMembersByNodes([self.op.node_name])
10071 group_nodes = frozenset([self.op.remote_node])
10073 # Determine nodes to be locked
10074 self.lock_nodes = set([self.op.node_name]) | group_nodes
10076 def _DetermineInstances(self):
10077 """Builds list of instances to operate on.
10080 assert self.op.mode in constants.IALLOCATOR_NEVAC_MODES
10082 if self.op.mode == constants.IALLOCATOR_NEVAC_PRI:
10083 # Primary instances only
10084 inst_fn = _GetNodePrimaryInstances
10085 assert self.op.remote_node is None, \
10086 "Evacuating primary instances requires iallocator"
10087 elif self.op.mode == constants.IALLOCATOR_NEVAC_SEC:
10088 # Secondary instances only
10089 inst_fn = _GetNodeSecondaryInstances
10092 assert self.op.mode == constants.IALLOCATOR_NEVAC_ALL
10093 inst_fn = _GetNodeInstances
10095 return inst_fn(self.cfg, self.op.node_name)
10097 def DeclareLocks(self, level):
10098 if level == locking.LEVEL_INSTANCE:
10099 # Lock instances optimistically, needs verification once node and group
10100 # locks have been acquired
10101 self.needed_locks[locking.LEVEL_INSTANCE] = \
10102 set(i.name for i in self._DetermineInstances())
10104 elif level == locking.LEVEL_NODEGROUP:
10105 # Lock node groups optimistically, needs verification once nodes have
10107 self.needed_locks[locking.LEVEL_NODEGROUP] = \
10108 self.cfg.GetNodeGroupsFromNodes(self.lock_nodes)
10110 elif level == locking.LEVEL_NODE:
10111 self.needed_locks[locking.LEVEL_NODE] = self.lock_nodes
10113 def CheckPrereq(self):
10115 owned_instances = self.owned_locks(locking.LEVEL_INSTANCE)
10116 owned_nodes = self.owned_locks(locking.LEVEL_NODE)
10117 owned_groups = self.owned_locks(locking.LEVEL_NODEGROUP)
10119 assert owned_nodes == self.lock_nodes
10121 wanted_groups = self.cfg.GetNodeGroupsFromNodes(owned_nodes)
10122 if owned_groups != wanted_groups:
10123 raise errors.OpExecError("Node groups changed since locks were acquired,"
10124 " current groups are '%s', used to be '%s'" %
10125 (utils.CommaJoin(wanted_groups),
10126 utils.CommaJoin(owned_groups)))
10128 # Determine affected instances
10129 self.instances = self._DetermineInstances()
10130 self.instance_names = [i.name for i in self.instances]
10132 if set(self.instance_names) != owned_instances:
10133 raise errors.OpExecError("Instances on node '%s' changed since locks"
10134 " were acquired, current instances are '%s',"
10135 " used to be '%s'" %
10136 (self.op.node_name,
10137 utils.CommaJoin(self.instance_names),
10138 utils.CommaJoin(owned_instances)))
10140 if self.instance_names:
10141 self.LogInfo("Evacuating instances from node '%s': %s",
10143 utils.CommaJoin(utils.NiceSort(self.instance_names)))
10145 self.LogInfo("No instances to evacuate from node '%s'",
10148 if self.op.remote_node is not None:
10149 for i in self.instances:
10150 if i.primary_node == self.op.remote_node:
10151 raise errors.OpPrereqError("Node %s is the primary node of"
10152 " instance %s, cannot use it as"
10154 (self.op.remote_node, i.name),
10155 errors.ECODE_INVAL)
10157 def Exec(self, feedback_fn):
10158 assert (self.op.iallocator is not None) ^ (self.op.remote_node is not None)
10160 if not self.instance_names:
10161 # No instances to evacuate
10164 elif self.op.iallocator is not None:
10165 # TODO: Implement relocation to other group
10166 ial = IAllocator(self.cfg, self.rpc, constants.IALLOCATOR_MODE_NODE_EVAC,
10167 evac_mode=self.op.mode,
10168 instances=list(self.instance_names))
10170 ial.Run(self.op.iallocator)
10172 if not ial.success:
10173 raise errors.OpPrereqError("Can't compute node evacuation using"
10174 " iallocator '%s': %s" %
10175 (self.op.iallocator, ial.info),
10176 errors.ECODE_NORES)
10178 jobs = _LoadNodeEvacResult(self, ial.result, self.op.early_release, True)
10180 elif self.op.remote_node is not None:
10181 assert self.op.mode == constants.IALLOCATOR_NEVAC_SEC
10183 [opcodes.OpInstanceReplaceDisks(instance_name=instance_name,
10184 remote_node=self.op.remote_node,
10186 mode=constants.REPLACE_DISK_CHG,
10187 early_release=self.op.early_release)]
10188 for instance_name in self.instance_names
10192 raise errors.ProgrammerError("No iallocator or remote node")
10194 return ResultWithJobs(jobs)
10197 def _SetOpEarlyRelease(early_release, op):
10198 """Sets C{early_release} flag on opcodes if available.
10202 op.early_release = early_release
10203 except AttributeError:
10204 assert not isinstance(op, opcodes.OpInstanceReplaceDisks)
10209 def _NodeEvacDest(use_nodes, group, nodes):
10210 """Returns group or nodes depending on caller's choice.
10214 return utils.CommaJoin(nodes)
10219 def _LoadNodeEvacResult(lu, alloc_result, early_release, use_nodes):
10220 """Unpacks the result of change-group and node-evacuate iallocator requests.
10222 Iallocator modes L{constants.IALLOCATOR_MODE_NODE_EVAC} and
10223 L{constants.IALLOCATOR_MODE_CHG_GROUP}.
10225 @type lu: L{LogicalUnit}
10226 @param lu: Logical unit instance
10227 @type alloc_result: tuple/list
10228 @param alloc_result: Result from iallocator
10229 @type early_release: bool
10230 @param early_release: Whether to release locks early if possible
10231 @type use_nodes: bool
10232 @param use_nodes: Whether to display node names instead of groups
10235 (moved, failed, jobs) = alloc_result
10238 lu.LogWarning("Unable to evacuate instances %s",
10239 utils.CommaJoin("%s (%s)" % (name, reason)
10240 for (name, reason) in failed))
10243 lu.LogInfo("Instances to be moved: %s",
10244 utils.CommaJoin("%s (to %s)" %
10245 (name, _NodeEvacDest(use_nodes, group, nodes))
10246 for (name, group, nodes) in moved))
10248 return [map(compat.partial(_SetOpEarlyRelease, early_release),
10249 map(opcodes.OpCode.LoadOpCode, ops))
10253 class LUInstanceGrowDisk(LogicalUnit):
10254 """Grow a disk of an instance.
10257 HPATH = "disk-grow"
10258 HTYPE = constants.HTYPE_INSTANCE
10261 def ExpandNames(self):
10262 self._ExpandAndLockInstance()
10263 self.needed_locks[locking.LEVEL_NODE] = []
10264 self.recalculate_locks[locking.LEVEL_NODE] = constants.LOCKS_REPLACE
10266 def DeclareLocks(self, level):
10267 if level == locking.LEVEL_NODE:
10268 self._LockInstancesNodes()
10270 def BuildHooksEnv(self):
10271 """Build hooks env.
10273 This runs on the master, the primary and all the secondaries.
10277 "DISK": self.op.disk,
10278 "AMOUNT": self.op.amount,
10280 env.update(_BuildInstanceHookEnvByObject(self, self.instance))
10283 def BuildHooksNodes(self):
10284 """Build hooks nodes.
10287 nl = [self.cfg.GetMasterNode()] + list(self.instance.all_nodes)
10290 def CheckPrereq(self):
10291 """Check prerequisites.
10293 This checks that the instance is in the cluster.
10296 instance = self.cfg.GetInstanceInfo(self.op.instance_name)
10297 assert instance is not None, \
10298 "Cannot retrieve locked instance %s" % self.op.instance_name
10299 nodenames = list(instance.all_nodes)
10300 for node in nodenames:
10301 _CheckNodeOnline(self, node)
10303 self.instance = instance
10305 if instance.disk_template not in constants.DTS_GROWABLE:
10306 raise errors.OpPrereqError("Instance's disk layout does not support"
10307 " growing", errors.ECODE_INVAL)
10309 self.disk = instance.FindDisk(self.op.disk)
10311 if instance.disk_template not in (constants.DT_FILE,
10312 constants.DT_SHARED_FILE):
10313 # TODO: check the free disk space for file, when that feature will be
10315 _CheckNodesFreeDiskPerVG(self, nodenames,
10316 self.disk.ComputeGrowth(self.op.amount))
10318 def Exec(self, feedback_fn):
10319 """Execute disk grow.
10322 instance = self.instance
10325 disks_ok, _ = _AssembleInstanceDisks(self, self.instance, disks=[disk])
10327 raise errors.OpExecError("Cannot activate block device to grow")
10329 # First run all grow ops in dry-run mode
10330 for node in instance.all_nodes:
10331 self.cfg.SetDiskID(disk, node)
10332 result = self.rpc.call_blockdev_grow(node, disk, self.op.amount, True)
10333 result.Raise("Grow request failed to node %s" % node)
10335 # We know that (as far as we can test) operations across different
10336 # nodes will succeed, time to run it for real
10337 for node in instance.all_nodes:
10338 self.cfg.SetDiskID(disk, node)
10339 result = self.rpc.call_blockdev_grow(node, disk, self.op.amount, False)
10340 result.Raise("Grow request failed to node %s" % node)
10342 # TODO: Rewrite code to work properly
10343 # DRBD goes into sync mode for a short amount of time after executing the
10344 # "resize" command. DRBD 8.x below version 8.0.13 contains a bug whereby
10345 # calling "resize" in sync mode fails. Sleeping for a short amount of
10346 # time is a work-around.
10349 disk.RecordGrow(self.op.amount)
10350 self.cfg.Update(instance, feedback_fn)
10351 if self.op.wait_for_sync:
10352 disk_abort = not _WaitForSync(self, instance, disks=[disk])
10354 self.proc.LogWarning("Disk sync-ing has not returned a good"
10355 " status; please check the instance")
10356 if not instance.admin_up:
10357 _SafeShutdownInstanceDisks(self, instance, disks=[disk])
10358 elif not instance.admin_up:
10359 self.proc.LogWarning("Not shutting down the disk even if the instance is"
10360 " not supposed to be running because no wait for"
10361 " sync mode was requested")
10364 class LUInstanceQueryData(NoHooksLU):
10365 """Query runtime instance data.
10370 def ExpandNames(self):
10371 self.needed_locks = {}
10373 # Use locking if requested or when non-static information is wanted
10374 if not (self.op.static or self.op.use_locking):
10375 self.LogWarning("Non-static data requested, locks need to be acquired")
10376 self.op.use_locking = True
10378 if self.op.instances or not self.op.use_locking:
10379 # Expand instance names right here
10380 self.wanted_names = _GetWantedInstances(self, self.op.instances)
10382 # Will use acquired locks
10383 self.wanted_names = None
10385 if self.op.use_locking:
10386 self.share_locks = _ShareAll()
10388 if self.wanted_names is None:
10389 self.needed_locks[locking.LEVEL_INSTANCE] = locking.ALL_SET
10391 self.needed_locks[locking.LEVEL_INSTANCE] = self.wanted_names
10393 self.needed_locks[locking.LEVEL_NODE] = []
10394 self.recalculate_locks[locking.LEVEL_NODE] = constants.LOCKS_REPLACE
10396 def DeclareLocks(self, level):
10397 if self.op.use_locking and level == locking.LEVEL_NODE:
10398 self._LockInstancesNodes()
10400 def CheckPrereq(self):
10401 """Check prerequisites.
10403 This only checks the optional instance list against the existing names.
10406 if self.wanted_names is None:
10407 assert self.op.use_locking, "Locking was not used"
10408 self.wanted_names = self.owned_locks(locking.LEVEL_INSTANCE)
10410 self.wanted_instances = \
10411 map(compat.snd, self.cfg.GetMultiInstanceInfo(self.wanted_names))
10413 def _ComputeBlockdevStatus(self, node, instance_name, dev):
10414 """Returns the status of a block device
10417 if self.op.static or not node:
10420 self.cfg.SetDiskID(dev, node)
10422 result = self.rpc.call_blockdev_find(node, dev)
10426 result.Raise("Can't compute disk status for %s" % instance_name)
10428 status = result.payload
10432 return (status.dev_path, status.major, status.minor,
10433 status.sync_percent, status.estimated_time,
10434 status.is_degraded, status.ldisk_status)
10436 def _ComputeDiskStatus(self, instance, snode, dev):
10437 """Compute block device status.
10440 if dev.dev_type in constants.LDS_DRBD:
10441 # we change the snode then (otherwise we use the one passed in)
10442 if dev.logical_id[0] == instance.primary_node:
10443 snode = dev.logical_id[1]
10445 snode = dev.logical_id[0]
10447 dev_pstatus = self._ComputeBlockdevStatus(instance.primary_node,
10448 instance.name, dev)
10449 dev_sstatus = self._ComputeBlockdevStatus(snode, instance.name, dev)
10452 dev_children = map(compat.partial(self._ComputeDiskStatus,
10459 "iv_name": dev.iv_name,
10460 "dev_type": dev.dev_type,
10461 "logical_id": dev.logical_id,
10462 "physical_id": dev.physical_id,
10463 "pstatus": dev_pstatus,
10464 "sstatus": dev_sstatus,
10465 "children": dev_children,
10470 def Exec(self, feedback_fn):
10471 """Gather and return data"""
10474 cluster = self.cfg.GetClusterInfo()
10476 pri_nodes = self.cfg.GetMultiNodeInfo(i.primary_node
10477 for i in self.wanted_instances)
10478 for instance, (_, pnode) in zip(self.wanted_instances, pri_nodes):
10479 if self.op.static or pnode.offline:
10480 remote_state = None
10482 self.LogWarning("Primary node %s is marked offline, returning static"
10483 " information only for instance %s" %
10484 (pnode.name, instance.name))
10486 remote_info = self.rpc.call_instance_info(instance.primary_node,
10488 instance.hypervisor)
10489 remote_info.Raise("Error checking node %s" % instance.primary_node)
10490 remote_info = remote_info.payload
10491 if remote_info and "state" in remote_info:
10492 remote_state = "up"
10494 remote_state = "down"
10496 if instance.admin_up:
10497 config_state = "up"
10499 config_state = "down"
10501 disks = map(compat.partial(self._ComputeDiskStatus, instance, None),
10504 result[instance.name] = {
10505 "name": instance.name,
10506 "config_state": config_state,
10507 "run_state": remote_state,
10508 "pnode": instance.primary_node,
10509 "snodes": instance.secondary_nodes,
10511 # this happens to be the same format used for hooks
10512 "nics": _NICListToTuple(self, instance.nics),
10513 "disk_template": instance.disk_template,
10515 "hypervisor": instance.hypervisor,
10516 "network_port": instance.network_port,
10517 "hv_instance": instance.hvparams,
10518 "hv_actual": cluster.FillHV(instance, skip_globals=True),
10519 "be_instance": instance.beparams,
10520 "be_actual": cluster.FillBE(instance),
10521 "os_instance": instance.osparams,
10522 "os_actual": cluster.SimpleFillOS(instance.os, instance.osparams),
10523 "serial_no": instance.serial_no,
10524 "mtime": instance.mtime,
10525 "ctime": instance.ctime,
10526 "uuid": instance.uuid,
10532 class LUInstanceSetParams(LogicalUnit):
10533 """Modifies an instances's parameters.
10536 HPATH = "instance-modify"
10537 HTYPE = constants.HTYPE_INSTANCE
10540 def CheckArguments(self):
10541 if not (self.op.nics or self.op.disks or self.op.disk_template or
10542 self.op.hvparams or self.op.beparams or self.op.os_name):
10543 raise errors.OpPrereqError("No changes submitted", errors.ECODE_INVAL)
10545 if self.op.hvparams:
10546 _CheckGlobalHvParams(self.op.hvparams)
10550 for disk_op, disk_dict in self.op.disks:
10551 utils.ForceDictType(disk_dict, constants.IDISK_PARAMS_TYPES)
10552 if disk_op == constants.DDM_REMOVE:
10553 disk_addremove += 1
10555 elif disk_op == constants.DDM_ADD:
10556 disk_addremove += 1
10558 if not isinstance(disk_op, int):
10559 raise errors.OpPrereqError("Invalid disk index", errors.ECODE_INVAL)
10560 if not isinstance(disk_dict, dict):
10561 msg = "Invalid disk value: expected dict, got '%s'" % disk_dict
10562 raise errors.OpPrereqError(msg, errors.ECODE_INVAL)
10564 if disk_op == constants.DDM_ADD:
10565 mode = disk_dict.setdefault(constants.IDISK_MODE, constants.DISK_RDWR)
10566 if mode not in constants.DISK_ACCESS_SET:
10567 raise errors.OpPrereqError("Invalid disk access mode '%s'" % mode,
10568 errors.ECODE_INVAL)
10569 size = disk_dict.get(constants.IDISK_SIZE, None)
10571 raise errors.OpPrereqError("Required disk parameter size missing",
10572 errors.ECODE_INVAL)
10575 except (TypeError, ValueError), err:
10576 raise errors.OpPrereqError("Invalid disk size parameter: %s" %
10577 str(err), errors.ECODE_INVAL)
10578 disk_dict[constants.IDISK_SIZE] = size
10580 # modification of disk
10581 if constants.IDISK_SIZE in disk_dict:
10582 raise errors.OpPrereqError("Disk size change not possible, use"
10583 " grow-disk", errors.ECODE_INVAL)
10585 if disk_addremove > 1:
10586 raise errors.OpPrereqError("Only one disk add or remove operation"
10587 " supported at a time", errors.ECODE_INVAL)
10589 if self.op.disks and self.op.disk_template is not None:
10590 raise errors.OpPrereqError("Disk template conversion and other disk"
10591 " changes not supported at the same time",
10592 errors.ECODE_INVAL)
10594 if (self.op.disk_template and
10595 self.op.disk_template in constants.DTS_INT_MIRROR and
10596 self.op.remote_node is None):
10597 raise errors.OpPrereqError("Changing the disk template to a mirrored"
10598 " one requires specifying a secondary node",
10599 errors.ECODE_INVAL)
10603 for nic_op, nic_dict in self.op.nics:
10604 utils.ForceDictType(nic_dict, constants.INIC_PARAMS_TYPES)
10605 if nic_op == constants.DDM_REMOVE:
10608 elif nic_op == constants.DDM_ADD:
10611 if not isinstance(nic_op, int):
10612 raise errors.OpPrereqError("Invalid nic index", errors.ECODE_INVAL)
10613 if not isinstance(nic_dict, dict):
10614 msg = "Invalid nic value: expected dict, got '%s'" % nic_dict
10615 raise errors.OpPrereqError(msg, errors.ECODE_INVAL)
10617 # nic_dict should be a dict
10618 nic_ip = nic_dict.get(constants.INIC_IP, None)
10619 if nic_ip is not None:
10620 if nic_ip.lower() == constants.VALUE_NONE:
10621 nic_dict[constants.INIC_IP] = None
10623 if not netutils.IPAddress.IsValid(nic_ip):
10624 raise errors.OpPrereqError("Invalid IP address '%s'" % nic_ip,
10625 errors.ECODE_INVAL)
10627 nic_bridge = nic_dict.get("bridge", None)
10628 nic_link = nic_dict.get(constants.INIC_LINK, None)
10629 if nic_bridge and nic_link:
10630 raise errors.OpPrereqError("Cannot pass 'bridge' and 'link'"
10631 " at the same time", errors.ECODE_INVAL)
10632 elif nic_bridge and nic_bridge.lower() == constants.VALUE_NONE:
10633 nic_dict["bridge"] = None
10634 elif nic_link and nic_link.lower() == constants.VALUE_NONE:
10635 nic_dict[constants.INIC_LINK] = None
10637 if nic_op == constants.DDM_ADD:
10638 nic_mac = nic_dict.get(constants.INIC_MAC, None)
10639 if nic_mac is None:
10640 nic_dict[constants.INIC_MAC] = constants.VALUE_AUTO
10642 if constants.INIC_MAC in nic_dict:
10643 nic_mac = nic_dict[constants.INIC_MAC]
10644 if nic_mac not in (constants.VALUE_AUTO, constants.VALUE_GENERATE):
10645 nic_mac = utils.NormalizeAndValidateMac(nic_mac)
10647 if nic_op != constants.DDM_ADD and nic_mac == constants.VALUE_AUTO:
10648 raise errors.OpPrereqError("'auto' is not a valid MAC address when"
10649 " modifying an existing nic",
10650 errors.ECODE_INVAL)
10652 if nic_addremove > 1:
10653 raise errors.OpPrereqError("Only one NIC add or remove operation"
10654 " supported at a time", errors.ECODE_INVAL)
10656 def ExpandNames(self):
10657 self._ExpandAndLockInstance()
10658 self.needed_locks[locking.LEVEL_NODE] = []
10659 self.recalculate_locks[locking.LEVEL_NODE] = constants.LOCKS_REPLACE
10661 def DeclareLocks(self, level):
10662 if level == locking.LEVEL_NODE:
10663 self._LockInstancesNodes()
10664 if self.op.disk_template and self.op.remote_node:
10665 self.op.remote_node = _ExpandNodeName(self.cfg, self.op.remote_node)
10666 self.needed_locks[locking.LEVEL_NODE].append(self.op.remote_node)
10668 def BuildHooksEnv(self):
10669 """Build hooks env.
10671 This runs on the master, primary and secondaries.
10675 if constants.BE_MEMORY in self.be_new:
10676 args["memory"] = self.be_new[constants.BE_MEMORY]
10677 if constants.BE_VCPUS in self.be_new:
10678 args["vcpus"] = self.be_new[constants.BE_VCPUS]
10679 # TODO: export disk changes. Note: _BuildInstanceHookEnv* don't export disk
10680 # information at all.
10683 nic_override = dict(self.op.nics)
10684 for idx, nic in enumerate(self.instance.nics):
10685 if idx in nic_override:
10686 this_nic_override = nic_override[idx]
10688 this_nic_override = {}
10689 if constants.INIC_IP in this_nic_override:
10690 ip = this_nic_override[constants.INIC_IP]
10693 if constants.INIC_MAC in this_nic_override:
10694 mac = this_nic_override[constants.INIC_MAC]
10697 if idx in self.nic_pnew:
10698 nicparams = self.nic_pnew[idx]
10700 nicparams = self.cluster.SimpleFillNIC(nic.nicparams)
10701 mode = nicparams[constants.NIC_MODE]
10702 link = nicparams[constants.NIC_LINK]
10703 args["nics"].append((ip, mac, mode, link))
10704 if constants.DDM_ADD in nic_override:
10705 ip = nic_override[constants.DDM_ADD].get(constants.INIC_IP, None)
10706 mac = nic_override[constants.DDM_ADD][constants.INIC_MAC]
10707 nicparams = self.nic_pnew[constants.DDM_ADD]
10708 mode = nicparams[constants.NIC_MODE]
10709 link = nicparams[constants.NIC_LINK]
10710 args["nics"].append((ip, mac, mode, link))
10711 elif constants.DDM_REMOVE in nic_override:
10712 del args["nics"][-1]
10714 env = _BuildInstanceHookEnvByObject(self, self.instance, override=args)
10715 if self.op.disk_template:
10716 env["NEW_DISK_TEMPLATE"] = self.op.disk_template
10720 def BuildHooksNodes(self):
10721 """Build hooks nodes.
10724 nl = [self.cfg.GetMasterNode()] + list(self.instance.all_nodes)
10727 def CheckPrereq(self):
10728 """Check prerequisites.
10730 This only checks the instance list against the existing names.
10733 # checking the new params on the primary/secondary nodes
10735 instance = self.instance = self.cfg.GetInstanceInfo(self.op.instance_name)
10736 cluster = self.cluster = self.cfg.GetClusterInfo()
10737 assert self.instance is not None, \
10738 "Cannot retrieve locked instance %s" % self.op.instance_name
10739 pnode = instance.primary_node
10740 nodelist = list(instance.all_nodes)
10743 if self.op.os_name and not self.op.force:
10744 _CheckNodeHasOS(self, instance.primary_node, self.op.os_name,
10745 self.op.force_variant)
10746 instance_os = self.op.os_name
10748 instance_os = instance.os
10750 if self.op.disk_template:
10751 if instance.disk_template == self.op.disk_template:
10752 raise errors.OpPrereqError("Instance already has disk template %s" %
10753 instance.disk_template, errors.ECODE_INVAL)
10755 if (instance.disk_template,
10756 self.op.disk_template) not in self._DISK_CONVERSIONS:
10757 raise errors.OpPrereqError("Unsupported disk template conversion from"
10758 " %s to %s" % (instance.disk_template,
10759 self.op.disk_template),
10760 errors.ECODE_INVAL)
10761 _CheckInstanceDown(self, instance, "cannot change disk template")
10762 if self.op.disk_template in constants.DTS_INT_MIRROR:
10763 if self.op.remote_node == pnode:
10764 raise errors.OpPrereqError("Given new secondary node %s is the same"
10765 " as the primary node of the instance" %
10766 self.op.remote_node, errors.ECODE_STATE)
10767 _CheckNodeOnline(self, self.op.remote_node)
10768 _CheckNodeNotDrained(self, self.op.remote_node)
10769 # FIXME: here we assume that the old instance type is DT_PLAIN
10770 assert instance.disk_template == constants.DT_PLAIN
10771 disks = [{constants.IDISK_SIZE: d.size,
10772 constants.IDISK_VG: d.logical_id[0]}
10773 for d in instance.disks]
10774 required = _ComputeDiskSizePerVG(self.op.disk_template, disks)
10775 _CheckNodesFreeDiskPerVG(self, [self.op.remote_node], required)
10777 # hvparams processing
10778 if self.op.hvparams:
10779 hv_type = instance.hypervisor
10780 i_hvdict = _GetUpdatedParams(instance.hvparams, self.op.hvparams)
10781 utils.ForceDictType(i_hvdict, constants.HVS_PARAMETER_TYPES)
10782 hv_new = cluster.SimpleFillHV(hv_type, instance.os, i_hvdict)
10785 hypervisor.GetHypervisor(hv_type).CheckParameterSyntax(hv_new)
10786 _CheckHVParams(self, nodelist, instance.hypervisor, hv_new)
10787 self.hv_new = hv_new # the new actual values
10788 self.hv_inst = i_hvdict # the new dict (without defaults)
10790 self.hv_new = self.hv_inst = {}
10792 # beparams processing
10793 if self.op.beparams:
10794 i_bedict = _GetUpdatedParams(instance.beparams, self.op.beparams,
10796 utils.ForceDictType(i_bedict, constants.BES_PARAMETER_TYPES)
10797 be_new = cluster.SimpleFillBE(i_bedict)
10798 self.be_new = be_new # the new actual values
10799 self.be_inst = i_bedict # the new dict (without defaults)
10801 self.be_new = self.be_inst = {}
10802 be_old = cluster.FillBE(instance)
10804 # osparams processing
10805 if self.op.osparams:
10806 i_osdict = _GetUpdatedParams(instance.osparams, self.op.osparams)
10807 _CheckOSParams(self, True, nodelist, instance_os, i_osdict)
10808 self.os_inst = i_osdict # the new dict (without defaults)
10814 if (constants.BE_MEMORY in self.op.beparams and not self.op.force and
10815 be_new[constants.BE_MEMORY] > be_old[constants.BE_MEMORY]):
10816 mem_check_list = [pnode]
10817 if be_new[constants.BE_AUTO_BALANCE]:
10818 # either we changed auto_balance to yes or it was from before
10819 mem_check_list.extend(instance.secondary_nodes)
10820 instance_info = self.rpc.call_instance_info(pnode, instance.name,
10821 instance.hypervisor)
10822 nodeinfo = self.rpc.call_node_info(mem_check_list, None,
10823 instance.hypervisor)
10824 pninfo = nodeinfo[pnode]
10825 msg = pninfo.fail_msg
10827 # Assume the primary node is unreachable and go ahead
10828 self.warn.append("Can't get info from primary node %s: %s" %
10830 elif not isinstance(pninfo.payload.get("memory_free", None), int):
10831 self.warn.append("Node data from primary node %s doesn't contain"
10832 " free memory information" % pnode)
10833 elif instance_info.fail_msg:
10834 self.warn.append("Can't get instance runtime information: %s" %
10835 instance_info.fail_msg)
10837 if instance_info.payload:
10838 current_mem = int(instance_info.payload["memory"])
10840 # Assume instance not running
10841 # (there is a slight race condition here, but it's not very probable,
10842 # and we have no other way to check)
10844 miss_mem = (be_new[constants.BE_MEMORY] - current_mem -
10845 pninfo.payload["memory_free"])
10847 raise errors.OpPrereqError("This change will prevent the instance"
10848 " from starting, due to %d MB of memory"
10849 " missing on its primary node" % miss_mem,
10850 errors.ECODE_NORES)
10852 if be_new[constants.BE_AUTO_BALANCE]:
10853 for node, nres in nodeinfo.items():
10854 if node not in instance.secondary_nodes:
10856 nres.Raise("Can't get info from secondary node %s" % node,
10857 prereq=True, ecode=errors.ECODE_STATE)
10858 if not isinstance(nres.payload.get("memory_free", None), int):
10859 raise errors.OpPrereqError("Secondary node %s didn't return free"
10860 " memory information" % node,
10861 errors.ECODE_STATE)
10862 elif be_new[constants.BE_MEMORY] > nres.payload["memory_free"]:
10863 raise errors.OpPrereqError("This change will prevent the instance"
10864 " from failover to its secondary node"
10865 " %s, due to not enough memory" % node,
10866 errors.ECODE_STATE)
10870 self.nic_pinst = {}
10871 for nic_op, nic_dict in self.op.nics:
10872 if nic_op == constants.DDM_REMOVE:
10873 if not instance.nics:
10874 raise errors.OpPrereqError("Instance has no NICs, cannot remove",
10875 errors.ECODE_INVAL)
10877 if nic_op != constants.DDM_ADD:
10879 if not instance.nics:
10880 raise errors.OpPrereqError("Invalid NIC index %s, instance has"
10881 " no NICs" % nic_op,
10882 errors.ECODE_INVAL)
10883 if nic_op < 0 or nic_op >= len(instance.nics):
10884 raise errors.OpPrereqError("Invalid NIC index %s, valid values"
10886 (nic_op, len(instance.nics) - 1),
10887 errors.ECODE_INVAL)
10888 old_nic_params = instance.nics[nic_op].nicparams
10889 old_nic_ip = instance.nics[nic_op].ip
10891 old_nic_params = {}
10894 update_params_dict = dict([(key, nic_dict[key])
10895 for key in constants.NICS_PARAMETERS
10896 if key in nic_dict])
10898 if "bridge" in nic_dict:
10899 update_params_dict[constants.NIC_LINK] = nic_dict["bridge"]
10901 new_nic_params = _GetUpdatedParams(old_nic_params,
10902 update_params_dict)
10903 utils.ForceDictType(new_nic_params, constants.NICS_PARAMETER_TYPES)
10904 new_filled_nic_params = cluster.SimpleFillNIC(new_nic_params)
10905 objects.NIC.CheckParameterSyntax(new_filled_nic_params)
10906 self.nic_pinst[nic_op] = new_nic_params
10907 self.nic_pnew[nic_op] = new_filled_nic_params
10908 new_nic_mode = new_filled_nic_params[constants.NIC_MODE]
10910 if new_nic_mode == constants.NIC_MODE_BRIDGED:
10911 nic_bridge = new_filled_nic_params[constants.NIC_LINK]
10912 msg = self.rpc.call_bridges_exist(pnode, [nic_bridge]).fail_msg
10914 msg = "Error checking bridges on node %s: %s" % (pnode, msg)
10916 self.warn.append(msg)
10918 raise errors.OpPrereqError(msg, errors.ECODE_ENVIRON)
10919 if new_nic_mode == constants.NIC_MODE_ROUTED:
10920 if constants.INIC_IP in nic_dict:
10921 nic_ip = nic_dict[constants.INIC_IP]
10923 nic_ip = old_nic_ip
10925 raise errors.OpPrereqError("Cannot set the nic ip to None"
10926 " on a routed nic", errors.ECODE_INVAL)
10927 if constants.INIC_MAC in nic_dict:
10928 nic_mac = nic_dict[constants.INIC_MAC]
10929 if nic_mac is None:
10930 raise errors.OpPrereqError("Cannot set the nic mac to None",
10931 errors.ECODE_INVAL)
10932 elif nic_mac in (constants.VALUE_AUTO, constants.VALUE_GENERATE):
10933 # otherwise generate the mac
10934 nic_dict[constants.INIC_MAC] = \
10935 self.cfg.GenerateMAC(self.proc.GetECId())
10937 # or validate/reserve the current one
10939 self.cfg.ReserveMAC(nic_mac, self.proc.GetECId())
10940 except errors.ReservationError:
10941 raise errors.OpPrereqError("MAC address %s already in use"
10942 " in cluster" % nic_mac,
10943 errors.ECODE_NOTUNIQUE)
10946 if self.op.disks and instance.disk_template == constants.DT_DISKLESS:
10947 raise errors.OpPrereqError("Disk operations not supported for"
10948 " diskless instances",
10949 errors.ECODE_INVAL)
10950 for disk_op, _ in self.op.disks:
10951 if disk_op == constants.DDM_REMOVE:
10952 if len(instance.disks) == 1:
10953 raise errors.OpPrereqError("Cannot remove the last disk of"
10954 " an instance", errors.ECODE_INVAL)
10955 _CheckInstanceDown(self, instance, "cannot remove disks")
10957 if (disk_op == constants.DDM_ADD and
10958 len(instance.disks) >= constants.MAX_DISKS):
10959 raise errors.OpPrereqError("Instance has too many disks (%d), cannot"
10960 " add more" % constants.MAX_DISKS,
10961 errors.ECODE_STATE)
10962 if disk_op not in (constants.DDM_ADD, constants.DDM_REMOVE):
10964 if disk_op < 0 or disk_op >= len(instance.disks):
10965 raise errors.OpPrereqError("Invalid disk index %s, valid values"
10967 (disk_op, len(instance.disks)),
10968 errors.ECODE_INVAL)
10972 def _ConvertPlainToDrbd(self, feedback_fn):
10973 """Converts an instance from plain to drbd.
10976 feedback_fn("Converting template to drbd")
10977 instance = self.instance
10978 pnode = instance.primary_node
10979 snode = self.op.remote_node
10981 # create a fake disk info for _GenerateDiskTemplate
10982 disk_info = [{constants.IDISK_SIZE: d.size, constants.IDISK_MODE: d.mode,
10983 constants.IDISK_VG: d.logical_id[0]}
10984 for d in instance.disks]
10985 new_disks = _GenerateDiskTemplate(self, self.op.disk_template,
10986 instance.name, pnode, [snode],
10987 disk_info, None, None, 0, feedback_fn)
10988 info = _GetInstanceInfoText(instance)
10989 feedback_fn("Creating aditional volumes...")
10990 # first, create the missing data and meta devices
10991 for disk in new_disks:
10992 # unfortunately this is... not too nice
10993 _CreateSingleBlockDev(self, pnode, instance, disk.children[1],
10995 for child in disk.children:
10996 _CreateSingleBlockDev(self, snode, instance, child, info, True)
10997 # at this stage, all new LVs have been created, we can rename the
10999 feedback_fn("Renaming original volumes...")
11000 rename_list = [(o, n.children[0].logical_id)
11001 for (o, n) in zip(instance.disks, new_disks)]
11002 result = self.rpc.call_blockdev_rename(pnode, rename_list)
11003 result.Raise("Failed to rename original LVs")
11005 feedback_fn("Initializing DRBD devices...")
11006 # all child devices are in place, we can now create the DRBD devices
11007 for disk in new_disks:
11008 for node in [pnode, snode]:
11009 f_create = node == pnode
11010 _CreateSingleBlockDev(self, node, instance, disk, info, f_create)
11012 # at this point, the instance has been modified
11013 instance.disk_template = constants.DT_DRBD8
11014 instance.disks = new_disks
11015 self.cfg.Update(instance, feedback_fn)
11017 # disks are created, waiting for sync
11018 disk_abort = not _WaitForSync(self, instance,
11019 oneshot=not self.op.wait_for_sync)
11021 raise errors.OpExecError("There are some degraded disks for"
11022 " this instance, please cleanup manually")
11024 def _ConvertDrbdToPlain(self, feedback_fn):
11025 """Converts an instance from drbd to plain.
11028 instance = self.instance
11029 assert len(instance.secondary_nodes) == 1
11030 pnode = instance.primary_node
11031 snode = instance.secondary_nodes[0]
11032 feedback_fn("Converting template to plain")
11034 old_disks = instance.disks
11035 new_disks = [d.children[0] for d in old_disks]
11037 # copy over size and mode
11038 for parent, child in zip(old_disks, new_disks):
11039 child.size = parent.size
11040 child.mode = parent.mode
11042 # update instance structure
11043 instance.disks = new_disks
11044 instance.disk_template = constants.DT_PLAIN
11045 self.cfg.Update(instance, feedback_fn)
11047 feedback_fn("Removing volumes on the secondary node...")
11048 for disk in old_disks:
11049 self.cfg.SetDiskID(disk, snode)
11050 msg = self.rpc.call_blockdev_remove(snode, disk).fail_msg
11052 self.LogWarning("Could not remove block device %s on node %s,"
11053 " continuing anyway: %s", disk.iv_name, snode, msg)
11055 feedback_fn("Removing unneeded volumes on the primary node...")
11056 for idx, disk in enumerate(old_disks):
11057 meta = disk.children[1]
11058 self.cfg.SetDiskID(meta, pnode)
11059 msg = self.rpc.call_blockdev_remove(pnode, meta).fail_msg
11061 self.LogWarning("Could not remove metadata for disk %d on node %s,"
11062 " continuing anyway: %s", idx, pnode, msg)
11064 def Exec(self, feedback_fn):
11065 """Modifies an instance.
11067 All parameters take effect only at the next restart of the instance.
11070 # Process here the warnings from CheckPrereq, as we don't have a
11071 # feedback_fn there.
11072 for warn in self.warn:
11073 feedback_fn("WARNING: %s" % warn)
11076 instance = self.instance
11078 for disk_op, disk_dict in self.op.disks:
11079 if disk_op == constants.DDM_REMOVE:
11080 # remove the last disk
11081 device = instance.disks.pop()
11082 device_idx = len(instance.disks)
11083 for node, disk in device.ComputeNodeTree(instance.primary_node):
11084 self.cfg.SetDiskID(disk, node)
11085 msg = self.rpc.call_blockdev_remove(node, disk).fail_msg
11087 self.LogWarning("Could not remove disk/%d on node %s: %s,"
11088 " continuing anyway", device_idx, node, msg)
11089 result.append(("disk/%d" % device_idx, "remove"))
11090 elif disk_op == constants.DDM_ADD:
11092 if instance.disk_template in (constants.DT_FILE,
11093 constants.DT_SHARED_FILE):
11094 file_driver, file_path = instance.disks[0].logical_id
11095 file_path = os.path.dirname(file_path)
11097 file_driver = file_path = None
11098 disk_idx_base = len(instance.disks)
11099 new_disk = _GenerateDiskTemplate(self,
11100 instance.disk_template,
11101 instance.name, instance.primary_node,
11102 instance.secondary_nodes,
11106 disk_idx_base, feedback_fn)[0]
11107 instance.disks.append(new_disk)
11108 info = _GetInstanceInfoText(instance)
11110 logging.info("Creating volume %s for instance %s",
11111 new_disk.iv_name, instance.name)
11112 # Note: this needs to be kept in sync with _CreateDisks
11114 for node in instance.all_nodes:
11115 f_create = node == instance.primary_node
11117 _CreateBlockDev(self, node, instance, new_disk,
11118 f_create, info, f_create)
11119 except errors.OpExecError, err:
11120 self.LogWarning("Failed to create volume %s (%s) on"
11122 new_disk.iv_name, new_disk, node, err)
11123 result.append(("disk/%d" % disk_idx_base, "add:size=%s,mode=%s" %
11124 (new_disk.size, new_disk.mode)))
11126 # change a given disk
11127 instance.disks[disk_op].mode = disk_dict[constants.IDISK_MODE]
11128 result.append(("disk.mode/%d" % disk_op,
11129 disk_dict[constants.IDISK_MODE]))
11131 if self.op.disk_template:
11132 r_shut = _ShutdownInstanceDisks(self, instance)
11134 raise errors.OpExecError("Cannot shutdown instance disks, unable to"
11135 " proceed with disk template conversion")
11136 mode = (instance.disk_template, self.op.disk_template)
11138 self._DISK_CONVERSIONS[mode](self, feedback_fn)
11140 self.cfg.ReleaseDRBDMinors(instance.name)
11142 result.append(("disk_template", self.op.disk_template))
11145 for nic_op, nic_dict in self.op.nics:
11146 if nic_op == constants.DDM_REMOVE:
11147 # remove the last nic
11148 del instance.nics[-1]
11149 result.append(("nic.%d" % len(instance.nics), "remove"))
11150 elif nic_op == constants.DDM_ADD:
11151 # mac and bridge should be set, by now
11152 mac = nic_dict[constants.INIC_MAC]
11153 ip = nic_dict.get(constants.INIC_IP, None)
11154 nicparams = self.nic_pinst[constants.DDM_ADD]
11155 new_nic = objects.NIC(mac=mac, ip=ip, nicparams=nicparams)
11156 instance.nics.append(new_nic)
11157 result.append(("nic.%d" % (len(instance.nics) - 1),
11158 "add:mac=%s,ip=%s,mode=%s,link=%s" %
11159 (new_nic.mac, new_nic.ip,
11160 self.nic_pnew[constants.DDM_ADD][constants.NIC_MODE],
11161 self.nic_pnew[constants.DDM_ADD][constants.NIC_LINK]
11164 for key in (constants.INIC_MAC, constants.INIC_IP):
11165 if key in nic_dict:
11166 setattr(instance.nics[nic_op], key, nic_dict[key])
11167 if nic_op in self.nic_pinst:
11168 instance.nics[nic_op].nicparams = self.nic_pinst[nic_op]
11169 for key, val in nic_dict.iteritems():
11170 result.append(("nic.%s/%d" % (key, nic_op), val))
11173 if self.op.hvparams:
11174 instance.hvparams = self.hv_inst
11175 for key, val in self.op.hvparams.iteritems():
11176 result.append(("hv/%s" % key, val))
11179 if self.op.beparams:
11180 instance.beparams = self.be_inst
11181 for key, val in self.op.beparams.iteritems():
11182 result.append(("be/%s" % key, val))
11185 if self.op.os_name:
11186 instance.os = self.op.os_name
11189 if self.op.osparams:
11190 instance.osparams = self.os_inst
11191 for key, val in self.op.osparams.iteritems():
11192 result.append(("os/%s" % key, val))
11194 self.cfg.Update(instance, feedback_fn)
11198 _DISK_CONVERSIONS = {
11199 (constants.DT_PLAIN, constants.DT_DRBD8): _ConvertPlainToDrbd,
11200 (constants.DT_DRBD8, constants.DT_PLAIN): _ConvertDrbdToPlain,
11204 class LUInstanceChangeGroup(LogicalUnit):
11205 HPATH = "instance-change-group"
11206 HTYPE = constants.HTYPE_INSTANCE
11209 def ExpandNames(self):
11210 self.share_locks = _ShareAll()
11211 self.needed_locks = {
11212 locking.LEVEL_NODEGROUP: [],
11213 locking.LEVEL_NODE: [],
11216 self._ExpandAndLockInstance()
11218 if self.op.target_groups:
11219 self.req_target_uuids = map(self.cfg.LookupNodeGroup,
11220 self.op.target_groups)
11222 self.req_target_uuids = None
11224 self.op.iallocator = _GetDefaultIAllocator(self.cfg, self.op.iallocator)
11226 def DeclareLocks(self, level):
11227 if level == locking.LEVEL_NODEGROUP:
11228 assert not self.needed_locks[locking.LEVEL_NODEGROUP]
11230 if self.req_target_uuids:
11231 lock_groups = set(self.req_target_uuids)
11233 # Lock all groups used by instance optimistically; this requires going
11234 # via the node before it's locked, requiring verification later on
11235 instance_groups = self.cfg.GetInstanceNodeGroups(self.op.instance_name)
11236 lock_groups.update(instance_groups)
11238 # No target groups, need to lock all of them
11239 lock_groups = locking.ALL_SET
11241 self.needed_locks[locking.LEVEL_NODEGROUP] = lock_groups
11243 elif level == locking.LEVEL_NODE:
11244 if self.req_target_uuids:
11245 # Lock all nodes used by instances
11246 self.recalculate_locks[locking.LEVEL_NODE] = constants.LOCKS_APPEND
11247 self._LockInstancesNodes()
11249 # Lock all nodes in all potential target groups
11250 lock_groups = (frozenset(self.owned_locks(locking.LEVEL_NODEGROUP)) -
11251 self.cfg.GetInstanceNodeGroups(self.op.instance_name))
11252 member_nodes = [node_name
11253 for group in lock_groups
11254 for node_name in self.cfg.GetNodeGroup(group).members]
11255 self.needed_locks[locking.LEVEL_NODE].extend(member_nodes)
11257 # Lock all nodes as all groups are potential targets
11258 self.needed_locks[locking.LEVEL_NODE] = locking.ALL_SET
11260 def CheckPrereq(self):
11261 owned_instances = frozenset(self.owned_locks(locking.LEVEL_INSTANCE))
11262 owned_groups = frozenset(self.owned_locks(locking.LEVEL_NODEGROUP))
11263 owned_nodes = frozenset(self.owned_locks(locking.LEVEL_NODE))
11265 assert (self.req_target_uuids is None or
11266 owned_groups.issuperset(self.req_target_uuids))
11267 assert owned_instances == set([self.op.instance_name])
11269 # Get instance information
11270 self.instance = self.cfg.GetInstanceInfo(self.op.instance_name)
11272 # Check if node groups for locked instance are still correct
11273 assert owned_nodes.issuperset(self.instance.all_nodes), \
11274 ("Instance %s's nodes changed while we kept the lock" %
11275 self.op.instance_name)
11277 inst_groups = _CheckInstanceNodeGroups(self.cfg, self.op.instance_name,
11280 if self.req_target_uuids:
11281 # User requested specific target groups
11282 self.target_uuids = self.req_target_uuids
11284 # All groups except those used by the instance are potential targets
11285 self.target_uuids = owned_groups - inst_groups
11287 conflicting_groups = self.target_uuids & inst_groups
11288 if conflicting_groups:
11289 raise errors.OpPrereqError("Can't use group(s) '%s' as targets, they are"
11290 " used by the instance '%s'" %
11291 (utils.CommaJoin(conflicting_groups),
11292 self.op.instance_name),
11293 errors.ECODE_INVAL)
11295 if not self.target_uuids:
11296 raise errors.OpPrereqError("There are no possible target groups",
11297 errors.ECODE_INVAL)
11299 def BuildHooksEnv(self):
11300 """Build hooks env.
11303 assert self.target_uuids
11306 "TARGET_GROUPS": " ".join(self.target_uuids),
11309 env.update(_BuildInstanceHookEnvByObject(self, self.instance))
11313 def BuildHooksNodes(self):
11314 """Build hooks nodes.
11317 mn = self.cfg.GetMasterNode()
11318 return ([mn], [mn])
11320 def Exec(self, feedback_fn):
11321 instances = list(self.owned_locks(locking.LEVEL_INSTANCE))
11323 assert instances == [self.op.instance_name], "Instance not locked"
11325 ial = IAllocator(self.cfg, self.rpc, constants.IALLOCATOR_MODE_CHG_GROUP,
11326 instances=instances, target_groups=list(self.target_uuids))
11328 ial.Run(self.op.iallocator)
11330 if not ial.success:
11331 raise errors.OpPrereqError("Can't compute solution for changing group of"
11332 " instance '%s' using iallocator '%s': %s" %
11333 (self.op.instance_name, self.op.iallocator,
11335 errors.ECODE_NORES)
11337 jobs = _LoadNodeEvacResult(self, ial.result, self.op.early_release, False)
11339 self.LogInfo("Iallocator returned %s job(s) for changing group of"
11340 " instance '%s'", len(jobs), self.op.instance_name)
11342 return ResultWithJobs(jobs)
11345 class LUBackupQuery(NoHooksLU):
11346 """Query the exports list
11351 def ExpandNames(self):
11352 self.needed_locks = {}
11353 self.share_locks[locking.LEVEL_NODE] = 1
11354 if not self.op.nodes:
11355 self.needed_locks[locking.LEVEL_NODE] = locking.ALL_SET
11357 self.needed_locks[locking.LEVEL_NODE] = \
11358 _GetWantedNodes(self, self.op.nodes)
11360 def Exec(self, feedback_fn):
11361 """Compute the list of all the exported system images.
11364 @return: a dictionary with the structure node->(export-list)
11365 where export-list is a list of the instances exported on
11369 self.nodes = self.owned_locks(locking.LEVEL_NODE)
11370 rpcresult = self.rpc.call_export_list(self.nodes)
11372 for node in rpcresult:
11373 if rpcresult[node].fail_msg:
11374 result[node] = False
11376 result[node] = rpcresult[node].payload
11381 class LUBackupPrepare(NoHooksLU):
11382 """Prepares an instance for an export and returns useful information.
11387 def ExpandNames(self):
11388 self._ExpandAndLockInstance()
11390 def CheckPrereq(self):
11391 """Check prerequisites.
11394 instance_name = self.op.instance_name
11396 self.instance = self.cfg.GetInstanceInfo(instance_name)
11397 assert self.instance is not None, \
11398 "Cannot retrieve locked instance %s" % self.op.instance_name
11399 _CheckNodeOnline(self, self.instance.primary_node)
11401 self._cds = _GetClusterDomainSecret()
11403 def Exec(self, feedback_fn):
11404 """Prepares an instance for an export.
11407 instance = self.instance
11409 if self.op.mode == constants.EXPORT_MODE_REMOTE:
11410 salt = utils.GenerateSecret(8)
11412 feedback_fn("Generating X509 certificate on %s" % instance.primary_node)
11413 result = self.rpc.call_x509_cert_create(instance.primary_node,
11414 constants.RIE_CERT_VALIDITY)
11415 result.Raise("Can't create X509 key and certificate on %s" % result.node)
11417 (name, cert_pem) = result.payload
11419 cert = OpenSSL.crypto.load_certificate(OpenSSL.crypto.FILETYPE_PEM,
11423 "handshake": masterd.instance.ComputeRemoteExportHandshake(self._cds),
11424 "x509_key_name": (name, utils.Sha1Hmac(self._cds, name, salt=salt),
11426 "x509_ca": utils.SignX509Certificate(cert, self._cds, salt),
11432 class LUBackupExport(LogicalUnit):
11433 """Export an instance to an image in the cluster.
11436 HPATH = "instance-export"
11437 HTYPE = constants.HTYPE_INSTANCE
11440 def CheckArguments(self):
11441 """Check the arguments.
11444 self.x509_key_name = self.op.x509_key_name
11445 self.dest_x509_ca_pem = self.op.destination_x509_ca
11447 if self.op.mode == constants.EXPORT_MODE_REMOTE:
11448 if not self.x509_key_name:
11449 raise errors.OpPrereqError("Missing X509 key name for encryption",
11450 errors.ECODE_INVAL)
11452 if not self.dest_x509_ca_pem:
11453 raise errors.OpPrereqError("Missing destination X509 CA",
11454 errors.ECODE_INVAL)
11456 def ExpandNames(self):
11457 self._ExpandAndLockInstance()
11459 # Lock all nodes for local exports
11460 if self.op.mode == constants.EXPORT_MODE_LOCAL:
11461 # FIXME: lock only instance primary and destination node
11463 # Sad but true, for now we have do lock all nodes, as we don't know where
11464 # the previous export might be, and in this LU we search for it and
11465 # remove it from its current node. In the future we could fix this by:
11466 # - making a tasklet to search (share-lock all), then create the
11467 # new one, then one to remove, after
11468 # - removing the removal operation altogether
11469 self.needed_locks[locking.LEVEL_NODE] = locking.ALL_SET
11471 def DeclareLocks(self, level):
11472 """Last minute lock declaration."""
11473 # All nodes are locked anyway, so nothing to do here.
11475 def BuildHooksEnv(self):
11476 """Build hooks env.
11478 This will run on the master, primary node and target node.
11482 "EXPORT_MODE": self.op.mode,
11483 "EXPORT_NODE": self.op.target_node,
11484 "EXPORT_DO_SHUTDOWN": self.op.shutdown,
11485 "SHUTDOWN_TIMEOUT": self.op.shutdown_timeout,
11486 # TODO: Generic function for boolean env variables
11487 "REMOVE_INSTANCE": str(bool(self.op.remove_instance)),
11490 env.update(_BuildInstanceHookEnvByObject(self, self.instance))
11494 def BuildHooksNodes(self):
11495 """Build hooks nodes.
11498 nl = [self.cfg.GetMasterNode(), self.instance.primary_node]
11500 if self.op.mode == constants.EXPORT_MODE_LOCAL:
11501 nl.append(self.op.target_node)
11505 def CheckPrereq(self):
11506 """Check prerequisites.
11508 This checks that the instance and node names are valid.
11511 instance_name = self.op.instance_name
11513 self.instance = self.cfg.GetInstanceInfo(instance_name)
11514 assert self.instance is not None, \
11515 "Cannot retrieve locked instance %s" % self.op.instance_name
11516 _CheckNodeOnline(self, self.instance.primary_node)
11518 if (self.op.remove_instance and self.instance.admin_up and
11519 not self.op.shutdown):
11520 raise errors.OpPrereqError("Can not remove instance without shutting it"
11523 if self.op.mode == constants.EXPORT_MODE_LOCAL:
11524 self.op.target_node = _ExpandNodeName(self.cfg, self.op.target_node)
11525 self.dst_node = self.cfg.GetNodeInfo(self.op.target_node)
11526 assert self.dst_node is not None
11528 _CheckNodeOnline(self, self.dst_node.name)
11529 _CheckNodeNotDrained(self, self.dst_node.name)
11532 self.dest_disk_info = None
11533 self.dest_x509_ca = None
11535 elif self.op.mode == constants.EXPORT_MODE_REMOTE:
11536 self.dst_node = None
11538 if len(self.op.target_node) != len(self.instance.disks):
11539 raise errors.OpPrereqError(("Received destination information for %s"
11540 " disks, but instance %s has %s disks") %
11541 (len(self.op.target_node), instance_name,
11542 len(self.instance.disks)),
11543 errors.ECODE_INVAL)
11545 cds = _GetClusterDomainSecret()
11547 # Check X509 key name
11549 (key_name, hmac_digest, hmac_salt) = self.x509_key_name
11550 except (TypeError, ValueError), err:
11551 raise errors.OpPrereqError("Invalid data for X509 key name: %s" % err)
11553 if not utils.VerifySha1Hmac(cds, key_name, hmac_digest, salt=hmac_salt):
11554 raise errors.OpPrereqError("HMAC for X509 key name is wrong",
11555 errors.ECODE_INVAL)
11557 # Load and verify CA
11559 (cert, _) = utils.LoadSignedX509Certificate(self.dest_x509_ca_pem, cds)
11560 except OpenSSL.crypto.Error, err:
11561 raise errors.OpPrereqError("Unable to load destination X509 CA (%s)" %
11562 (err, ), errors.ECODE_INVAL)
11564 (errcode, msg) = utils.VerifyX509Certificate(cert, None, None)
11565 if errcode is not None:
11566 raise errors.OpPrereqError("Invalid destination X509 CA (%s)" %
11567 (msg, ), errors.ECODE_INVAL)
11569 self.dest_x509_ca = cert
11571 # Verify target information
11573 for idx, disk_data in enumerate(self.op.target_node):
11575 (host, port, magic) = \
11576 masterd.instance.CheckRemoteExportDiskInfo(cds, idx, disk_data)
11577 except errors.GenericError, err:
11578 raise errors.OpPrereqError("Target info for disk %s: %s" %
11579 (idx, err), errors.ECODE_INVAL)
11581 disk_info.append((host, port, magic))
11583 assert len(disk_info) == len(self.op.target_node)
11584 self.dest_disk_info = disk_info
11587 raise errors.ProgrammerError("Unhandled export mode %r" %
11590 # instance disk type verification
11591 # TODO: Implement export support for file-based disks
11592 for disk in self.instance.disks:
11593 if disk.dev_type == constants.LD_FILE:
11594 raise errors.OpPrereqError("Export not supported for instances with"
11595 " file-based disks", errors.ECODE_INVAL)
11597 def _CleanupExports(self, feedback_fn):
11598 """Removes exports of current instance from all other nodes.
11600 If an instance in a cluster with nodes A..D was exported to node C, its
11601 exports will be removed from the nodes A, B and D.
11604 assert self.op.mode != constants.EXPORT_MODE_REMOTE
11606 nodelist = self.cfg.GetNodeList()
11607 nodelist.remove(self.dst_node.name)
11609 # on one-node clusters nodelist will be empty after the removal
11610 # if we proceed the backup would be removed because OpBackupQuery
11611 # substitutes an empty list with the full cluster node list.
11612 iname = self.instance.name
11614 feedback_fn("Removing old exports for instance %s" % iname)
11615 exportlist = self.rpc.call_export_list(nodelist)
11616 for node in exportlist:
11617 if exportlist[node].fail_msg:
11619 if iname in exportlist[node].payload:
11620 msg = self.rpc.call_export_remove(node, iname).fail_msg
11622 self.LogWarning("Could not remove older export for instance %s"
11623 " on node %s: %s", iname, node, msg)
11625 def Exec(self, feedback_fn):
11626 """Export an instance to an image in the cluster.
11629 assert self.op.mode in constants.EXPORT_MODES
11631 instance = self.instance
11632 src_node = instance.primary_node
11634 if self.op.shutdown:
11635 # shutdown the instance, but not the disks
11636 feedback_fn("Shutting down instance %s" % instance.name)
11637 result = self.rpc.call_instance_shutdown(src_node, instance,
11638 self.op.shutdown_timeout)
11639 # TODO: Maybe ignore failures if ignore_remove_failures is set
11640 result.Raise("Could not shutdown instance %s on"
11641 " node %s" % (instance.name, src_node))
11643 # set the disks ID correctly since call_instance_start needs the
11644 # correct drbd minor to create the symlinks
11645 for disk in instance.disks:
11646 self.cfg.SetDiskID(disk, src_node)
11648 activate_disks = (not instance.admin_up)
11651 # Activate the instance disks if we'exporting a stopped instance
11652 feedback_fn("Activating disks for %s" % instance.name)
11653 _StartInstanceDisks(self, instance, None)
11656 helper = masterd.instance.ExportInstanceHelper(self, feedback_fn,
11659 helper.CreateSnapshots()
11661 if (self.op.shutdown and instance.admin_up and
11662 not self.op.remove_instance):
11663 assert not activate_disks
11664 feedback_fn("Starting instance %s" % instance.name)
11665 result = self.rpc.call_instance_start(src_node, instance,
11667 msg = result.fail_msg
11669 feedback_fn("Failed to start instance: %s" % msg)
11670 _ShutdownInstanceDisks(self, instance)
11671 raise errors.OpExecError("Could not start instance: %s" % msg)
11673 if self.op.mode == constants.EXPORT_MODE_LOCAL:
11674 (fin_resu, dresults) = helper.LocalExport(self.dst_node)
11675 elif self.op.mode == constants.EXPORT_MODE_REMOTE:
11676 connect_timeout = constants.RIE_CONNECT_TIMEOUT
11677 timeouts = masterd.instance.ImportExportTimeouts(connect_timeout)
11679 (key_name, _, _) = self.x509_key_name
11682 OpenSSL.crypto.dump_certificate(OpenSSL.crypto.FILETYPE_PEM,
11685 (fin_resu, dresults) = helper.RemoteExport(self.dest_disk_info,
11686 key_name, dest_ca_pem,
11691 # Check for backwards compatibility
11692 assert len(dresults) == len(instance.disks)
11693 assert compat.all(isinstance(i, bool) for i in dresults), \
11694 "Not all results are boolean: %r" % dresults
11698 feedback_fn("Deactivating disks for %s" % instance.name)
11699 _ShutdownInstanceDisks(self, instance)
11701 if not (compat.all(dresults) and fin_resu):
11704 failures.append("export finalization")
11705 if not compat.all(dresults):
11706 fdsk = utils.CommaJoin(idx for (idx, dsk) in enumerate(dresults)
11708 failures.append("disk export: disk(s) %s" % fdsk)
11710 raise errors.OpExecError("Export failed, errors in %s" %
11711 utils.CommaJoin(failures))
11713 # At this point, the export was successful, we can cleanup/finish
11715 # Remove instance if requested
11716 if self.op.remove_instance:
11717 feedback_fn("Removing instance %s" % instance.name)
11718 _RemoveInstance(self, feedback_fn, instance,
11719 self.op.ignore_remove_failures)
11721 if self.op.mode == constants.EXPORT_MODE_LOCAL:
11722 self._CleanupExports(feedback_fn)
11724 return fin_resu, dresults
11727 class LUBackupRemove(NoHooksLU):
11728 """Remove exports related to the named instance.
11733 def ExpandNames(self):
11734 self.needed_locks = {}
11735 # We need all nodes to be locked in order for RemoveExport to work, but we
11736 # don't need to lock the instance itself, as nothing will happen to it (and
11737 # we can remove exports also for a removed instance)
11738 self.needed_locks[locking.LEVEL_NODE] = locking.ALL_SET
11740 def Exec(self, feedback_fn):
11741 """Remove any export.
11744 instance_name = self.cfg.ExpandInstanceName(self.op.instance_name)
11745 # If the instance was not found we'll try with the name that was passed in.
11746 # This will only work if it was an FQDN, though.
11748 if not instance_name:
11750 instance_name = self.op.instance_name
11752 locked_nodes = self.owned_locks(locking.LEVEL_NODE)
11753 exportlist = self.rpc.call_export_list(locked_nodes)
11755 for node in exportlist:
11756 msg = exportlist[node].fail_msg
11758 self.LogWarning("Failed to query node %s (continuing): %s", node, msg)
11760 if instance_name in exportlist[node].payload:
11762 result = self.rpc.call_export_remove(node, instance_name)
11763 msg = result.fail_msg
11765 logging.error("Could not remove export for instance %s"
11766 " on node %s: %s", instance_name, node, msg)
11768 if fqdn_warn and not found:
11769 feedback_fn("Export not found. If trying to remove an export belonging"
11770 " to a deleted instance please use its Fully Qualified"
11774 class LUGroupAdd(LogicalUnit):
11775 """Logical unit for creating node groups.
11778 HPATH = "group-add"
11779 HTYPE = constants.HTYPE_GROUP
11782 def ExpandNames(self):
11783 # We need the new group's UUID here so that we can create and acquire the
11784 # corresponding lock. Later, in Exec(), we'll indicate to cfg.AddNodeGroup
11785 # that it should not check whether the UUID exists in the configuration.
11786 self.group_uuid = self.cfg.GenerateUniqueID(self.proc.GetECId())
11787 self.needed_locks = {}
11788 self.add_locks[locking.LEVEL_NODEGROUP] = self.group_uuid
11790 def CheckPrereq(self):
11791 """Check prerequisites.
11793 This checks that the given group name is not an existing node group
11798 existing_uuid = self.cfg.LookupNodeGroup(self.op.group_name)
11799 except errors.OpPrereqError:
11802 raise errors.OpPrereqError("Desired group name '%s' already exists as a"
11803 " node group (UUID: %s)" %
11804 (self.op.group_name, existing_uuid),
11805 errors.ECODE_EXISTS)
11807 if self.op.ndparams:
11808 utils.ForceDictType(self.op.ndparams, constants.NDS_PARAMETER_TYPES)
11810 def BuildHooksEnv(self):
11811 """Build hooks env.
11815 "GROUP_NAME": self.op.group_name,
11818 def BuildHooksNodes(self):
11819 """Build hooks nodes.
11822 mn = self.cfg.GetMasterNode()
11823 return ([mn], [mn])
11825 def Exec(self, feedback_fn):
11826 """Add the node group to the cluster.
11829 group_obj = objects.NodeGroup(name=self.op.group_name, members=[],
11830 uuid=self.group_uuid,
11831 alloc_policy=self.op.alloc_policy,
11832 ndparams=self.op.ndparams)
11834 self.cfg.AddNodeGroup(group_obj, self.proc.GetECId(), check_uuid=False)
11835 del self.remove_locks[locking.LEVEL_NODEGROUP]
11838 class LUGroupAssignNodes(NoHooksLU):
11839 """Logical unit for assigning nodes to groups.
11844 def ExpandNames(self):
11845 # These raise errors.OpPrereqError on their own:
11846 self.group_uuid = self.cfg.LookupNodeGroup(self.op.group_name)
11847 self.op.nodes = _GetWantedNodes(self, self.op.nodes)
11849 # We want to lock all the affected nodes and groups. We have readily
11850 # available the list of nodes, and the *destination* group. To gather the
11851 # list of "source" groups, we need to fetch node information later on.
11852 self.needed_locks = {
11853 locking.LEVEL_NODEGROUP: set([self.group_uuid]),
11854 locking.LEVEL_NODE: self.op.nodes,
11857 def DeclareLocks(self, level):
11858 if level == locking.LEVEL_NODEGROUP:
11859 assert len(self.needed_locks[locking.LEVEL_NODEGROUP]) == 1
11861 # Try to get all affected nodes' groups without having the group or node
11862 # lock yet. Needs verification later in the code flow.
11863 groups = self.cfg.GetNodeGroupsFromNodes(self.op.nodes)
11865 self.needed_locks[locking.LEVEL_NODEGROUP].update(groups)
11867 def CheckPrereq(self):
11868 """Check prerequisites.
11871 assert self.needed_locks[locking.LEVEL_NODEGROUP]
11872 assert (frozenset(self.owned_locks(locking.LEVEL_NODE)) ==
11873 frozenset(self.op.nodes))
11875 expected_locks = (set([self.group_uuid]) |
11876 self.cfg.GetNodeGroupsFromNodes(self.op.nodes))
11877 actual_locks = self.owned_locks(locking.LEVEL_NODEGROUP)
11878 if actual_locks != expected_locks:
11879 raise errors.OpExecError("Nodes changed groups since locks were acquired,"
11880 " current groups are '%s', used to be '%s'" %
11881 (utils.CommaJoin(expected_locks),
11882 utils.CommaJoin(actual_locks)))
11884 self.node_data = self.cfg.GetAllNodesInfo()
11885 self.group = self.cfg.GetNodeGroup(self.group_uuid)
11886 instance_data = self.cfg.GetAllInstancesInfo()
11888 if self.group is None:
11889 raise errors.OpExecError("Could not retrieve group '%s' (UUID: %s)" %
11890 (self.op.group_name, self.group_uuid))
11892 (new_splits, previous_splits) = \
11893 self.CheckAssignmentForSplitInstances([(node, self.group_uuid)
11894 for node in self.op.nodes],
11895 self.node_data, instance_data)
11898 fmt_new_splits = utils.CommaJoin(utils.NiceSort(new_splits))
11900 if not self.op.force:
11901 raise errors.OpExecError("The following instances get split by this"
11902 " change and --force was not given: %s" %
11905 self.LogWarning("This operation will split the following instances: %s",
11908 if previous_splits:
11909 self.LogWarning("In addition, these already-split instances continue"
11910 " to be split across groups: %s",
11911 utils.CommaJoin(utils.NiceSort(previous_splits)))
11913 def Exec(self, feedback_fn):
11914 """Assign nodes to a new group.
11917 for node in self.op.nodes:
11918 self.node_data[node].group = self.group_uuid
11920 # FIXME: Depends on side-effects of modifying the result of
11921 # C{cfg.GetAllNodesInfo}
11923 self.cfg.Update(self.group, feedback_fn) # Saves all modified nodes.
11926 def CheckAssignmentForSplitInstances(changes, node_data, instance_data):
11927 """Check for split instances after a node assignment.
11929 This method considers a series of node assignments as an atomic operation,
11930 and returns information about split instances after applying the set of
11933 In particular, it returns information about newly split instances, and
11934 instances that were already split, and remain so after the change.
11936 Only instances whose disk template is listed in constants.DTS_INT_MIRROR are
11939 @type changes: list of (node_name, new_group_uuid) pairs.
11940 @param changes: list of node assignments to consider.
11941 @param node_data: a dict with data for all nodes
11942 @param instance_data: a dict with all instances to consider
11943 @rtype: a two-tuple
11944 @return: a list of instances that were previously okay and result split as a
11945 consequence of this change, and a list of instances that were previously
11946 split and this change does not fix.
11949 changed_nodes = dict((node, group) for node, group in changes
11950 if node_data[node].group != group)
11952 all_split_instances = set()
11953 previously_split_instances = set()
11955 def InstanceNodes(instance):
11956 return [instance.primary_node] + list(instance.secondary_nodes)
11958 for inst in instance_data.values():
11959 if inst.disk_template not in constants.DTS_INT_MIRROR:
11962 instance_nodes = InstanceNodes(inst)
11964 if len(set(node_data[node].group for node in instance_nodes)) > 1:
11965 previously_split_instances.add(inst.name)
11967 if len(set(changed_nodes.get(node, node_data[node].group)
11968 for node in instance_nodes)) > 1:
11969 all_split_instances.add(inst.name)
11971 return (list(all_split_instances - previously_split_instances),
11972 list(previously_split_instances & all_split_instances))
11975 class _GroupQuery(_QueryBase):
11976 FIELDS = query.GROUP_FIELDS
11978 def ExpandNames(self, lu):
11979 lu.needed_locks = {}
11981 self._all_groups = lu.cfg.GetAllNodeGroupsInfo()
11982 name_to_uuid = dict((g.name, g.uuid) for g in self._all_groups.values())
11985 self.wanted = [name_to_uuid[name]
11986 for name in utils.NiceSort(name_to_uuid.keys())]
11988 # Accept names to be either names or UUIDs.
11991 all_uuid = frozenset(self._all_groups.keys())
11993 for name in self.names:
11994 if name in all_uuid:
11995 self.wanted.append(name)
11996 elif name in name_to_uuid:
11997 self.wanted.append(name_to_uuid[name])
11999 missing.append(name)
12002 raise errors.OpPrereqError("Some groups do not exist: %s" %
12003 utils.CommaJoin(missing),
12004 errors.ECODE_NOENT)
12006 def DeclareLocks(self, lu, level):
12009 def _GetQueryData(self, lu):
12010 """Computes the list of node groups and their attributes.
12013 do_nodes = query.GQ_NODE in self.requested_data
12014 do_instances = query.GQ_INST in self.requested_data
12016 group_to_nodes = None
12017 group_to_instances = None
12019 # For GQ_NODE, we need to map group->[nodes], and group->[instances] for
12020 # GQ_INST. The former is attainable with just GetAllNodesInfo(), but for the
12021 # latter GetAllInstancesInfo() is not enough, for we have to go through
12022 # instance->node. Hence, we will need to process nodes even if we only need
12023 # instance information.
12024 if do_nodes or do_instances:
12025 all_nodes = lu.cfg.GetAllNodesInfo()
12026 group_to_nodes = dict((uuid, []) for uuid in self.wanted)
12029 for node in all_nodes.values():
12030 if node.group in group_to_nodes:
12031 group_to_nodes[node.group].append(node.name)
12032 node_to_group[node.name] = node.group
12035 all_instances = lu.cfg.GetAllInstancesInfo()
12036 group_to_instances = dict((uuid, []) for uuid in self.wanted)
12038 for instance in all_instances.values():
12039 node = instance.primary_node
12040 if node in node_to_group:
12041 group_to_instances[node_to_group[node]].append(instance.name)
12044 # Do not pass on node information if it was not requested.
12045 group_to_nodes = None
12047 return query.GroupQueryData([self._all_groups[uuid]
12048 for uuid in self.wanted],
12049 group_to_nodes, group_to_instances)
12052 class LUGroupQuery(NoHooksLU):
12053 """Logical unit for querying node groups.
12058 def CheckArguments(self):
12059 self.gq = _GroupQuery(qlang.MakeSimpleFilter("name", self.op.names),
12060 self.op.output_fields, False)
12062 def ExpandNames(self):
12063 self.gq.ExpandNames(self)
12065 def DeclareLocks(self, level):
12066 self.gq.DeclareLocks(self, level)
12068 def Exec(self, feedback_fn):
12069 return self.gq.OldStyleQuery(self)
12072 class LUGroupSetParams(LogicalUnit):
12073 """Modifies the parameters of a node group.
12076 HPATH = "group-modify"
12077 HTYPE = constants.HTYPE_GROUP
12080 def CheckArguments(self):
12083 self.op.alloc_policy,
12086 if all_changes.count(None) == len(all_changes):
12087 raise errors.OpPrereqError("Please pass at least one modification",
12088 errors.ECODE_INVAL)
12090 def ExpandNames(self):
12091 # This raises errors.OpPrereqError on its own:
12092 self.group_uuid = self.cfg.LookupNodeGroup(self.op.group_name)
12094 self.needed_locks = {
12095 locking.LEVEL_NODEGROUP: [self.group_uuid],
12098 def CheckPrereq(self):
12099 """Check prerequisites.
12102 self.group = self.cfg.GetNodeGroup(self.group_uuid)
12104 if self.group is None:
12105 raise errors.OpExecError("Could not retrieve group '%s' (UUID: %s)" %
12106 (self.op.group_name, self.group_uuid))
12108 if self.op.ndparams:
12109 new_ndparams = _GetUpdatedParams(self.group.ndparams, self.op.ndparams)
12110 utils.ForceDictType(self.op.ndparams, constants.NDS_PARAMETER_TYPES)
12111 self.new_ndparams = new_ndparams
12113 def BuildHooksEnv(self):
12114 """Build hooks env.
12118 "GROUP_NAME": self.op.group_name,
12119 "NEW_ALLOC_POLICY": self.op.alloc_policy,
12122 def BuildHooksNodes(self):
12123 """Build hooks nodes.
12126 mn = self.cfg.GetMasterNode()
12127 return ([mn], [mn])
12129 def Exec(self, feedback_fn):
12130 """Modifies the node group.
12135 if self.op.ndparams:
12136 self.group.ndparams = self.new_ndparams
12137 result.append(("ndparams", str(self.group.ndparams)))
12139 if self.op.alloc_policy:
12140 self.group.alloc_policy = self.op.alloc_policy
12142 self.cfg.Update(self.group, feedback_fn)
12147 class LUGroupRemove(LogicalUnit):
12148 HPATH = "group-remove"
12149 HTYPE = constants.HTYPE_GROUP
12152 def ExpandNames(self):
12153 # This will raises errors.OpPrereqError on its own:
12154 self.group_uuid = self.cfg.LookupNodeGroup(self.op.group_name)
12155 self.needed_locks = {
12156 locking.LEVEL_NODEGROUP: [self.group_uuid],
12159 def CheckPrereq(self):
12160 """Check prerequisites.
12162 This checks that the given group name exists as a node group, that is
12163 empty (i.e., contains no nodes), and that is not the last group of the
12167 # Verify that the group is empty.
12168 group_nodes = [node.name
12169 for node in self.cfg.GetAllNodesInfo().values()
12170 if node.group == self.group_uuid]
12173 raise errors.OpPrereqError("Group '%s' not empty, has the following"
12175 (self.op.group_name,
12176 utils.CommaJoin(utils.NiceSort(group_nodes))),
12177 errors.ECODE_STATE)
12179 # Verify the cluster would not be left group-less.
12180 if len(self.cfg.GetNodeGroupList()) == 1:
12181 raise errors.OpPrereqError("Group '%s' is the only group,"
12182 " cannot be removed" %
12183 self.op.group_name,
12184 errors.ECODE_STATE)
12186 def BuildHooksEnv(self):
12187 """Build hooks env.
12191 "GROUP_NAME": self.op.group_name,
12194 def BuildHooksNodes(self):
12195 """Build hooks nodes.
12198 mn = self.cfg.GetMasterNode()
12199 return ([mn], [mn])
12201 def Exec(self, feedback_fn):
12202 """Remove the node group.
12206 self.cfg.RemoveNodeGroup(self.group_uuid)
12207 except errors.ConfigurationError:
12208 raise errors.OpExecError("Group '%s' with UUID %s disappeared" %
12209 (self.op.group_name, self.group_uuid))
12211 self.remove_locks[locking.LEVEL_NODEGROUP] = self.group_uuid
12214 class LUGroupRename(LogicalUnit):
12215 HPATH = "group-rename"
12216 HTYPE = constants.HTYPE_GROUP
12219 def ExpandNames(self):
12220 # This raises errors.OpPrereqError on its own:
12221 self.group_uuid = self.cfg.LookupNodeGroup(self.op.group_name)
12223 self.needed_locks = {
12224 locking.LEVEL_NODEGROUP: [self.group_uuid],
12227 def CheckPrereq(self):
12228 """Check prerequisites.
12230 Ensures requested new name is not yet used.
12234 new_name_uuid = self.cfg.LookupNodeGroup(self.op.new_name)
12235 except errors.OpPrereqError:
12238 raise errors.OpPrereqError("Desired new name '%s' clashes with existing"
12239 " node group (UUID: %s)" %
12240 (self.op.new_name, new_name_uuid),
12241 errors.ECODE_EXISTS)
12243 def BuildHooksEnv(self):
12244 """Build hooks env.
12248 "OLD_NAME": self.op.group_name,
12249 "NEW_NAME": self.op.new_name,
12252 def BuildHooksNodes(self):
12253 """Build hooks nodes.
12256 mn = self.cfg.GetMasterNode()
12258 all_nodes = self.cfg.GetAllNodesInfo()
12259 all_nodes.pop(mn, None)
12262 run_nodes.extend(node.name for node in all_nodes.values()
12263 if node.group == self.group_uuid)
12265 return (run_nodes, run_nodes)
12267 def Exec(self, feedback_fn):
12268 """Rename the node group.
12271 group = self.cfg.GetNodeGroup(self.group_uuid)
12274 raise errors.OpExecError("Could not retrieve group '%s' (UUID: %s)" %
12275 (self.op.group_name, self.group_uuid))
12277 group.name = self.op.new_name
12278 self.cfg.Update(group, feedback_fn)
12280 return self.op.new_name
12283 class LUGroupEvacuate(LogicalUnit):
12284 HPATH = "group-evacuate"
12285 HTYPE = constants.HTYPE_GROUP
12288 def ExpandNames(self):
12289 # This raises errors.OpPrereqError on its own:
12290 self.group_uuid = self.cfg.LookupNodeGroup(self.op.group_name)
12292 if self.op.target_groups:
12293 self.req_target_uuids = map(self.cfg.LookupNodeGroup,
12294 self.op.target_groups)
12296 self.req_target_uuids = []
12298 if self.group_uuid in self.req_target_uuids:
12299 raise errors.OpPrereqError("Group to be evacuated (%s) can not be used"
12300 " as a target group (targets are %s)" %
12302 utils.CommaJoin(self.req_target_uuids)),
12303 errors.ECODE_INVAL)
12305 self.op.iallocator = _GetDefaultIAllocator(self.cfg, self.op.iallocator)
12307 self.share_locks = _ShareAll()
12308 self.needed_locks = {
12309 locking.LEVEL_INSTANCE: [],
12310 locking.LEVEL_NODEGROUP: [],
12311 locking.LEVEL_NODE: [],
12314 def DeclareLocks(self, level):
12315 if level == locking.LEVEL_INSTANCE:
12316 assert not self.needed_locks[locking.LEVEL_INSTANCE]
12318 # Lock instances optimistically, needs verification once node and group
12319 # locks have been acquired
12320 self.needed_locks[locking.LEVEL_INSTANCE] = \
12321 self.cfg.GetNodeGroupInstances(self.group_uuid)
12323 elif level == locking.LEVEL_NODEGROUP:
12324 assert not self.needed_locks[locking.LEVEL_NODEGROUP]
12326 if self.req_target_uuids:
12327 lock_groups = set([self.group_uuid] + self.req_target_uuids)
12329 # Lock all groups used by instances optimistically; this requires going
12330 # via the node before it's locked, requiring verification later on
12331 lock_groups.update(group_uuid
12332 for instance_name in
12333 self.owned_locks(locking.LEVEL_INSTANCE)
12335 self.cfg.GetInstanceNodeGroups(instance_name))
12337 # No target groups, need to lock all of them
12338 lock_groups = locking.ALL_SET
12340 self.needed_locks[locking.LEVEL_NODEGROUP] = lock_groups
12342 elif level == locking.LEVEL_NODE:
12343 # This will only lock the nodes in the group to be evacuated which
12344 # contain actual instances
12345 self.recalculate_locks[locking.LEVEL_NODE] = constants.LOCKS_APPEND
12346 self._LockInstancesNodes()
12348 # Lock all nodes in group to be evacuated and target groups
12349 owned_groups = frozenset(self.owned_locks(locking.LEVEL_NODEGROUP))
12350 assert self.group_uuid in owned_groups
12351 member_nodes = [node_name
12352 for group in owned_groups
12353 for node_name in self.cfg.GetNodeGroup(group).members]
12354 self.needed_locks[locking.LEVEL_NODE].extend(member_nodes)
12356 def CheckPrereq(self):
12357 owned_instances = frozenset(self.owned_locks(locking.LEVEL_INSTANCE))
12358 owned_groups = frozenset(self.owned_locks(locking.LEVEL_NODEGROUP))
12359 owned_nodes = frozenset(self.owned_locks(locking.LEVEL_NODE))
12361 assert owned_groups.issuperset(self.req_target_uuids)
12362 assert self.group_uuid in owned_groups
12364 # Check if locked instances are still correct
12365 _CheckNodeGroupInstances(self.cfg, self.group_uuid, owned_instances)
12367 # Get instance information
12368 self.instances = dict(self.cfg.GetMultiInstanceInfo(owned_instances))
12370 # Check if node groups for locked instances are still correct
12371 for instance_name in owned_instances:
12372 inst = self.instances[instance_name]
12373 assert owned_nodes.issuperset(inst.all_nodes), \
12374 "Instance %s's nodes changed while we kept the lock" % instance_name
12376 inst_groups = _CheckInstanceNodeGroups(self.cfg, instance_name,
12379 assert self.group_uuid in inst_groups, \
12380 "Instance %s has no node in group %s" % (instance_name, self.group_uuid)
12382 if self.req_target_uuids:
12383 # User requested specific target groups
12384 self.target_uuids = self.req_target_uuids
12386 # All groups except the one to be evacuated are potential targets
12387 self.target_uuids = [group_uuid for group_uuid in owned_groups
12388 if group_uuid != self.group_uuid]
12390 if not self.target_uuids:
12391 raise errors.OpPrereqError("There are no possible target groups",
12392 errors.ECODE_INVAL)
12394 def BuildHooksEnv(self):
12395 """Build hooks env.
12399 "GROUP_NAME": self.op.group_name,
12400 "TARGET_GROUPS": " ".join(self.target_uuids),
12403 def BuildHooksNodes(self):
12404 """Build hooks nodes.
12407 mn = self.cfg.GetMasterNode()
12409 assert self.group_uuid in self.owned_locks(locking.LEVEL_NODEGROUP)
12411 run_nodes = [mn] + self.cfg.GetNodeGroup(self.group_uuid).members
12413 return (run_nodes, run_nodes)
12415 def Exec(self, feedback_fn):
12416 instances = list(self.owned_locks(locking.LEVEL_INSTANCE))
12418 assert self.group_uuid not in self.target_uuids
12420 ial = IAllocator(self.cfg, self.rpc, constants.IALLOCATOR_MODE_CHG_GROUP,
12421 instances=instances, target_groups=self.target_uuids)
12423 ial.Run(self.op.iallocator)
12425 if not ial.success:
12426 raise errors.OpPrereqError("Can't compute group evacuation using"
12427 " iallocator '%s': %s" %
12428 (self.op.iallocator, ial.info),
12429 errors.ECODE_NORES)
12431 jobs = _LoadNodeEvacResult(self, ial.result, self.op.early_release, False)
12433 self.LogInfo("Iallocator returned %s job(s) for evacuating node group %s",
12434 len(jobs), self.op.group_name)
12436 return ResultWithJobs(jobs)
12439 class TagsLU(NoHooksLU): # pylint: disable-msg=W0223
12440 """Generic tags LU.
12442 This is an abstract class which is the parent of all the other tags LUs.
12445 def ExpandNames(self):
12446 self.group_uuid = None
12447 self.needed_locks = {}
12448 if self.op.kind == constants.TAG_NODE:
12449 self.op.name = _ExpandNodeName(self.cfg, self.op.name)
12450 self.needed_locks[locking.LEVEL_NODE] = self.op.name
12451 elif self.op.kind == constants.TAG_INSTANCE:
12452 self.op.name = _ExpandInstanceName(self.cfg, self.op.name)
12453 self.needed_locks[locking.LEVEL_INSTANCE] = self.op.name
12454 elif self.op.kind == constants.TAG_NODEGROUP:
12455 self.group_uuid = self.cfg.LookupNodeGroup(self.op.name)
12457 # FIXME: Acquire BGL for cluster tag operations (as of this writing it's
12458 # not possible to acquire the BGL based on opcode parameters)
12460 def CheckPrereq(self):
12461 """Check prerequisites.
12464 if self.op.kind == constants.TAG_CLUSTER:
12465 self.target = self.cfg.GetClusterInfo()
12466 elif self.op.kind == constants.TAG_NODE:
12467 self.target = self.cfg.GetNodeInfo(self.op.name)
12468 elif self.op.kind == constants.TAG_INSTANCE:
12469 self.target = self.cfg.GetInstanceInfo(self.op.name)
12470 elif self.op.kind == constants.TAG_NODEGROUP:
12471 self.target = self.cfg.GetNodeGroup(self.group_uuid)
12473 raise errors.OpPrereqError("Wrong tag type requested (%s)" %
12474 str(self.op.kind), errors.ECODE_INVAL)
12477 class LUTagsGet(TagsLU):
12478 """Returns the tags of a given object.
12483 def ExpandNames(self):
12484 TagsLU.ExpandNames(self)
12486 # Share locks as this is only a read operation
12487 self.share_locks = _ShareAll()
12489 def Exec(self, feedback_fn):
12490 """Returns the tag list.
12493 return list(self.target.GetTags())
12496 class LUTagsSearch(NoHooksLU):
12497 """Searches the tags for a given pattern.
12502 def ExpandNames(self):
12503 self.needed_locks = {}
12505 def CheckPrereq(self):
12506 """Check prerequisites.
12508 This checks the pattern passed for validity by compiling it.
12512 self.re = re.compile(self.op.pattern)
12513 except re.error, err:
12514 raise errors.OpPrereqError("Invalid search pattern '%s': %s" %
12515 (self.op.pattern, err), errors.ECODE_INVAL)
12517 def Exec(self, feedback_fn):
12518 """Returns the tag list.
12522 tgts = [("/cluster", cfg.GetClusterInfo())]
12523 ilist = cfg.GetAllInstancesInfo().values()
12524 tgts.extend([("/instances/%s" % i.name, i) for i in ilist])
12525 nlist = cfg.GetAllNodesInfo().values()
12526 tgts.extend([("/nodes/%s" % n.name, n) for n in nlist])
12527 tgts.extend(("/nodegroup/%s" % n.name, n)
12528 for n in cfg.GetAllNodeGroupsInfo().values())
12530 for path, target in tgts:
12531 for tag in target.GetTags():
12532 if self.re.search(tag):
12533 results.append((path, tag))
12537 class LUTagsSet(TagsLU):
12538 """Sets a tag on a given object.
12543 def CheckPrereq(self):
12544 """Check prerequisites.
12546 This checks the type and length of the tag name and value.
12549 TagsLU.CheckPrereq(self)
12550 for tag in self.op.tags:
12551 objects.TaggableObject.ValidateTag(tag)
12553 def Exec(self, feedback_fn):
12558 for tag in self.op.tags:
12559 self.target.AddTag(tag)
12560 except errors.TagError, err:
12561 raise errors.OpExecError("Error while setting tag: %s" % str(err))
12562 self.cfg.Update(self.target, feedback_fn)
12565 class LUTagsDel(TagsLU):
12566 """Delete a list of tags from a given object.
12571 def CheckPrereq(self):
12572 """Check prerequisites.
12574 This checks that we have the given tag.
12577 TagsLU.CheckPrereq(self)
12578 for tag in self.op.tags:
12579 objects.TaggableObject.ValidateTag(tag)
12580 del_tags = frozenset(self.op.tags)
12581 cur_tags = self.target.GetTags()
12583 diff_tags = del_tags - cur_tags
12585 diff_names = ("'%s'" % i for i in sorted(diff_tags))
12586 raise errors.OpPrereqError("Tag(s) %s not found" %
12587 (utils.CommaJoin(diff_names), ),
12588 errors.ECODE_NOENT)
12590 def Exec(self, feedback_fn):
12591 """Remove the tag from the object.
12594 for tag in self.op.tags:
12595 self.target.RemoveTag(tag)
12596 self.cfg.Update(self.target, feedback_fn)
12599 class LUTestDelay(NoHooksLU):
12600 """Sleep for a specified amount of time.
12602 This LU sleeps on the master and/or nodes for a specified amount of
12608 def ExpandNames(self):
12609 """Expand names and set required locks.
12611 This expands the node list, if any.
12614 self.needed_locks = {}
12615 if self.op.on_nodes:
12616 # _GetWantedNodes can be used here, but is not always appropriate to use
12617 # this way in ExpandNames. Check LogicalUnit.ExpandNames docstring for
12618 # more information.
12619 self.op.on_nodes = _GetWantedNodes(self, self.op.on_nodes)
12620 self.needed_locks[locking.LEVEL_NODE] = self.op.on_nodes
12622 def _TestDelay(self):
12623 """Do the actual sleep.
12626 if self.op.on_master:
12627 if not utils.TestDelay(self.op.duration):
12628 raise errors.OpExecError("Error during master delay test")
12629 if self.op.on_nodes:
12630 result = self.rpc.call_test_delay(self.op.on_nodes, self.op.duration)
12631 for node, node_result in result.items():
12632 node_result.Raise("Failure during rpc call to node %s" % node)
12634 def Exec(self, feedback_fn):
12635 """Execute the test delay opcode, with the wanted repetitions.
12638 if self.op.repeat == 0:
12641 top_value = self.op.repeat - 1
12642 for i in range(self.op.repeat):
12643 self.LogInfo("Test delay iteration %d/%d" % (i, top_value))
12647 class LUTestJqueue(NoHooksLU):
12648 """Utility LU to test some aspects of the job queue.
12653 # Must be lower than default timeout for WaitForJobChange to see whether it
12654 # notices changed jobs
12655 _CLIENT_CONNECT_TIMEOUT = 20.0
12656 _CLIENT_CONFIRM_TIMEOUT = 60.0
12659 def _NotifyUsingSocket(cls, cb, errcls):
12660 """Opens a Unix socket and waits for another program to connect.
12663 @param cb: Callback to send socket name to client
12664 @type errcls: class
12665 @param errcls: Exception class to use for errors
12668 # Using a temporary directory as there's no easy way to create temporary
12669 # sockets without writing a custom loop around tempfile.mktemp and
12671 tmpdir = tempfile.mkdtemp()
12673 tmpsock = utils.PathJoin(tmpdir, "sock")
12675 logging.debug("Creating temporary socket at %s", tmpsock)
12676 sock = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
12681 # Send details to client
12684 # Wait for client to connect before continuing
12685 sock.settimeout(cls._CLIENT_CONNECT_TIMEOUT)
12687 (conn, _) = sock.accept()
12688 except socket.error, err:
12689 raise errcls("Client didn't connect in time (%s)" % err)
12693 # Remove as soon as client is connected
12694 shutil.rmtree(tmpdir)
12696 # Wait for client to close
12699 # pylint: disable-msg=E1101
12700 # Instance of '_socketobject' has no ... member
12701 conn.settimeout(cls._CLIENT_CONFIRM_TIMEOUT)
12703 except socket.error, err:
12704 raise errcls("Client failed to confirm notification (%s)" % err)
12708 def _SendNotification(self, test, arg, sockname):
12709 """Sends a notification to the client.
12712 @param test: Test name
12713 @param arg: Test argument (depends on test)
12714 @type sockname: string
12715 @param sockname: Socket path
12718 self.Log(constants.ELOG_JQUEUE_TEST, (sockname, test, arg))
12720 def _Notify(self, prereq, test, arg):
12721 """Notifies the client of a test.
12724 @param prereq: Whether this is a prereq-phase test
12726 @param test: Test name
12727 @param arg: Test argument (depends on test)
12731 errcls = errors.OpPrereqError
12733 errcls = errors.OpExecError
12735 return self._NotifyUsingSocket(compat.partial(self._SendNotification,
12739 def CheckArguments(self):
12740 self.checkargs_calls = getattr(self, "checkargs_calls", 0) + 1
12741 self.expandnames_calls = 0
12743 def ExpandNames(self):
12744 checkargs_calls = getattr(self, "checkargs_calls", 0)
12745 if checkargs_calls < 1:
12746 raise errors.ProgrammerError("CheckArguments was not called")
12748 self.expandnames_calls += 1
12750 if self.op.notify_waitlock:
12751 self._Notify(True, constants.JQT_EXPANDNAMES, None)
12753 self.LogInfo("Expanding names")
12755 # Get lock on master node (just to get a lock, not for a particular reason)
12756 self.needed_locks = {
12757 locking.LEVEL_NODE: self.cfg.GetMasterNode(),
12760 def Exec(self, feedback_fn):
12761 if self.expandnames_calls < 1:
12762 raise errors.ProgrammerError("ExpandNames was not called")
12764 if self.op.notify_exec:
12765 self._Notify(False, constants.JQT_EXEC, None)
12767 self.LogInfo("Executing")
12769 if self.op.log_messages:
12770 self._Notify(False, constants.JQT_STARTMSG, len(self.op.log_messages))
12771 for idx, msg in enumerate(self.op.log_messages):
12772 self.LogInfo("Sending log message %s", idx + 1)
12773 feedback_fn(constants.JQT_MSGPREFIX + msg)
12774 # Report how many test messages have been sent
12775 self._Notify(False, constants.JQT_LOGMSG, idx + 1)
12778 raise errors.OpExecError("Opcode failure was requested")
12783 class IAllocator(object):
12784 """IAllocator framework.
12786 An IAllocator instance has three sets of attributes:
12787 - cfg that is needed to query the cluster
12788 - input data (all members of the _KEYS class attribute are required)
12789 - four buffer attributes (in|out_data|text), that represent the
12790 input (to the external script) in text and data structure format,
12791 and the output from it, again in two formats
12792 - the result variables from the script (success, info, nodes) for
12796 # pylint: disable-msg=R0902
12797 # lots of instance attributes
12799 def __init__(self, cfg, rpc, mode, **kwargs):
12802 # init buffer variables
12803 self.in_text = self.out_text = self.in_data = self.out_data = None
12804 # init all input fields so that pylint is happy
12806 self.memory = self.disks = self.disk_template = None
12807 self.os = self.tags = self.nics = self.vcpus = None
12808 self.hypervisor = None
12809 self.relocate_from = None
12811 self.instances = None
12812 self.evac_mode = None
12813 self.target_groups = []
12815 self.required_nodes = None
12816 # init result fields
12817 self.success = self.info = self.result = None
12820 (fn, keydata, self._result_check) = self._MODE_DATA[self.mode]
12822 raise errors.ProgrammerError("Unknown mode '%s' passed to the"
12823 " IAllocator" % self.mode)
12825 keyset = [n for (n, _) in keydata]
12828 if key not in keyset:
12829 raise errors.ProgrammerError("Invalid input parameter '%s' to"
12830 " IAllocator" % key)
12831 setattr(self, key, kwargs[key])
12834 if key not in kwargs:
12835 raise errors.ProgrammerError("Missing input parameter '%s' to"
12836 " IAllocator" % key)
12837 self._BuildInputData(compat.partial(fn, self), keydata)
12839 def _ComputeClusterData(self):
12840 """Compute the generic allocator input data.
12842 This is the data that is independent of the actual operation.
12846 cluster_info = cfg.GetClusterInfo()
12849 "version": constants.IALLOCATOR_VERSION,
12850 "cluster_name": cfg.GetClusterName(),
12851 "cluster_tags": list(cluster_info.GetTags()),
12852 "enabled_hypervisors": list(cluster_info.enabled_hypervisors),
12853 # we don't have job IDs
12855 ninfo = cfg.GetAllNodesInfo()
12856 iinfo = cfg.GetAllInstancesInfo().values()
12857 i_list = [(inst, cluster_info.FillBE(inst)) for inst in iinfo]
12860 node_list = [n.name for n in ninfo.values() if n.vm_capable]
12862 if self.mode == constants.IALLOCATOR_MODE_ALLOC:
12863 hypervisor_name = self.hypervisor
12864 elif self.mode == constants.IALLOCATOR_MODE_RELOC:
12865 hypervisor_name = cfg.GetInstanceInfo(self.name).hypervisor
12867 hypervisor_name = cluster_info.enabled_hypervisors[0]
12869 node_data = self.rpc.call_node_info(node_list, cfg.GetVGName(),
12872 self.rpc.call_all_instances_info(node_list,
12873 cluster_info.enabled_hypervisors)
12875 data["nodegroups"] = self._ComputeNodeGroupData(cfg)
12877 config_ndata = self._ComputeBasicNodeData(ninfo)
12878 data["nodes"] = self._ComputeDynamicNodeData(ninfo, node_data, node_iinfo,
12879 i_list, config_ndata)
12880 assert len(data["nodes"]) == len(ninfo), \
12881 "Incomplete node data computed"
12883 data["instances"] = self._ComputeInstanceData(cluster_info, i_list)
12885 self.in_data = data
12888 def _ComputeNodeGroupData(cfg):
12889 """Compute node groups data.
12892 ng = dict((guuid, {
12893 "name": gdata.name,
12894 "alloc_policy": gdata.alloc_policy,
12896 for guuid, gdata in cfg.GetAllNodeGroupsInfo().items())
12901 def _ComputeBasicNodeData(node_cfg):
12902 """Compute global node data.
12905 @returns: a dict of name: (node dict, node config)
12908 # fill in static (config-based) values
12909 node_results = dict((ninfo.name, {
12910 "tags": list(ninfo.GetTags()),
12911 "primary_ip": ninfo.primary_ip,
12912 "secondary_ip": ninfo.secondary_ip,
12913 "offline": ninfo.offline,
12914 "drained": ninfo.drained,
12915 "master_candidate": ninfo.master_candidate,
12916 "group": ninfo.group,
12917 "master_capable": ninfo.master_capable,
12918 "vm_capable": ninfo.vm_capable,
12920 for ninfo in node_cfg.values())
12922 return node_results
12925 def _ComputeDynamicNodeData(node_cfg, node_data, node_iinfo, i_list,
12927 """Compute global node data.
12929 @param node_results: the basic node structures as filled from the config
12932 # make a copy of the current dict
12933 node_results = dict(node_results)
12934 for nname, nresult in node_data.items():
12935 assert nname in node_results, "Missing basic data for node %s" % nname
12936 ninfo = node_cfg[nname]
12938 if not (ninfo.offline or ninfo.drained):
12939 nresult.Raise("Can't get data for node %s" % nname)
12940 node_iinfo[nname].Raise("Can't get node instance info from node %s" %
12942 remote_info = nresult.payload
12944 for attr in ["memory_total", "memory_free", "memory_dom0",
12945 "vg_size", "vg_free", "cpu_total"]:
12946 if attr not in remote_info:
12947 raise errors.OpExecError("Node '%s' didn't return attribute"
12948 " '%s'" % (nname, attr))
12949 if not isinstance(remote_info[attr], int):
12950 raise errors.OpExecError("Node '%s' returned invalid value"
12952 (nname, attr, remote_info[attr]))
12953 # compute memory used by primary instances
12954 i_p_mem = i_p_up_mem = 0
12955 for iinfo, beinfo in i_list:
12956 if iinfo.primary_node == nname:
12957 i_p_mem += beinfo[constants.BE_MEMORY]
12958 if iinfo.name not in node_iinfo[nname].payload:
12961 i_used_mem = int(node_iinfo[nname].payload[iinfo.name]["memory"])
12962 i_mem_diff = beinfo[constants.BE_MEMORY] - i_used_mem
12963 remote_info["memory_free"] -= max(0, i_mem_diff)
12966 i_p_up_mem += beinfo[constants.BE_MEMORY]
12968 # compute memory used by instances
12970 "total_memory": remote_info["memory_total"],
12971 "reserved_memory": remote_info["memory_dom0"],
12972 "free_memory": remote_info["memory_free"],
12973 "total_disk": remote_info["vg_size"],
12974 "free_disk": remote_info["vg_free"],
12975 "total_cpus": remote_info["cpu_total"],
12976 "i_pri_memory": i_p_mem,
12977 "i_pri_up_memory": i_p_up_mem,
12979 pnr_dyn.update(node_results[nname])
12980 node_results[nname] = pnr_dyn
12982 return node_results
12985 def _ComputeInstanceData(cluster_info, i_list):
12986 """Compute global instance data.
12990 for iinfo, beinfo in i_list:
12992 for nic in iinfo.nics:
12993 filled_params = cluster_info.SimpleFillNIC(nic.nicparams)
12997 "mode": filled_params[constants.NIC_MODE],
12998 "link": filled_params[constants.NIC_LINK],
13000 if filled_params[constants.NIC_MODE] == constants.NIC_MODE_BRIDGED:
13001 nic_dict["bridge"] = filled_params[constants.NIC_LINK]
13002 nic_data.append(nic_dict)
13004 "tags": list(iinfo.GetTags()),
13005 "admin_up": iinfo.admin_up,
13006 "vcpus": beinfo[constants.BE_VCPUS],
13007 "memory": beinfo[constants.BE_MEMORY],
13009 "nodes": [iinfo.primary_node] + list(iinfo.secondary_nodes),
13011 "disks": [{constants.IDISK_SIZE: dsk.size,
13012 constants.IDISK_MODE: dsk.mode}
13013 for dsk in iinfo.disks],
13014 "disk_template": iinfo.disk_template,
13015 "hypervisor": iinfo.hypervisor,
13017 pir["disk_space_total"] = _ComputeDiskSize(iinfo.disk_template,
13019 instance_data[iinfo.name] = pir
13021 return instance_data
13023 def _AddNewInstance(self):
13024 """Add new instance data to allocator structure.
13026 This in combination with _AllocatorGetClusterData will create the
13027 correct structure needed as input for the allocator.
13029 The checks for the completeness of the opcode must have already been
13033 disk_space = _ComputeDiskSize(self.disk_template, self.disks)
13035 if self.disk_template in constants.DTS_INT_MIRROR:
13036 self.required_nodes = 2
13038 self.required_nodes = 1
13042 "disk_template": self.disk_template,
13045 "vcpus": self.vcpus,
13046 "memory": self.memory,
13047 "disks": self.disks,
13048 "disk_space_total": disk_space,
13050 "required_nodes": self.required_nodes,
13051 "hypervisor": self.hypervisor,
13056 def _AddRelocateInstance(self):
13057 """Add relocate instance data to allocator structure.
13059 This in combination with _IAllocatorGetClusterData will create the
13060 correct structure needed as input for the allocator.
13062 The checks for the completeness of the opcode must have already been
13066 instance = self.cfg.GetInstanceInfo(self.name)
13067 if instance is None:
13068 raise errors.ProgrammerError("Unknown instance '%s' passed to"
13069 " IAllocator" % self.name)
13071 if instance.disk_template not in constants.DTS_MIRRORED:
13072 raise errors.OpPrereqError("Can't relocate non-mirrored instances",
13073 errors.ECODE_INVAL)
13075 if instance.disk_template in constants.DTS_INT_MIRROR and \
13076 len(instance.secondary_nodes) != 1:
13077 raise errors.OpPrereqError("Instance has not exactly one secondary node",
13078 errors.ECODE_STATE)
13080 self.required_nodes = 1
13081 disk_sizes = [{constants.IDISK_SIZE: disk.size} for disk in instance.disks]
13082 disk_space = _ComputeDiskSize(instance.disk_template, disk_sizes)
13086 "disk_space_total": disk_space,
13087 "required_nodes": self.required_nodes,
13088 "relocate_from": self.relocate_from,
13092 def _AddNodeEvacuate(self):
13093 """Get data for node-evacuate requests.
13097 "instances": self.instances,
13098 "evac_mode": self.evac_mode,
13101 def _AddChangeGroup(self):
13102 """Get data for node-evacuate requests.
13106 "instances": self.instances,
13107 "target_groups": self.target_groups,
13110 def _BuildInputData(self, fn, keydata):
13111 """Build input data structures.
13114 self._ComputeClusterData()
13117 request["type"] = self.mode
13118 for keyname, keytype in keydata:
13119 if keyname not in request:
13120 raise errors.ProgrammerError("Request parameter %s is missing" %
13122 val = request[keyname]
13123 if not keytype(val):
13124 raise errors.ProgrammerError("Request parameter %s doesn't pass"
13125 " validation, value %s, expected"
13126 " type %s" % (keyname, val, keytype))
13127 self.in_data["request"] = request
13129 self.in_text = serializer.Dump(self.in_data)
13131 _STRING_LIST = ht.TListOf(ht.TString)
13132 _JOB_LIST = ht.TListOf(ht.TListOf(ht.TStrictDict(True, False, {
13133 # pylint: disable-msg=E1101
13134 # Class '...' has no 'OP_ID' member
13135 "OP_ID": ht.TElemOf([opcodes.OpInstanceFailover.OP_ID,
13136 opcodes.OpInstanceMigrate.OP_ID,
13137 opcodes.OpInstanceReplaceDisks.OP_ID])
13141 ht.TListOf(ht.TAnd(ht.TIsLength(3),
13142 ht.TItems([ht.TNonEmptyString,
13143 ht.TNonEmptyString,
13144 ht.TListOf(ht.TNonEmptyString),
13147 ht.TListOf(ht.TAnd(ht.TIsLength(2),
13148 ht.TItems([ht.TNonEmptyString,
13151 _NEVAC_RESULT = ht.TAnd(ht.TIsLength(3),
13152 ht.TItems([_NEVAC_MOVED, _NEVAC_FAILED, _JOB_LIST]))
13155 constants.IALLOCATOR_MODE_ALLOC:
13158 ("name", ht.TString),
13159 ("memory", ht.TInt),
13160 ("disks", ht.TListOf(ht.TDict)),
13161 ("disk_template", ht.TString),
13162 ("os", ht.TString),
13163 ("tags", _STRING_LIST),
13164 ("nics", ht.TListOf(ht.TDict)),
13165 ("vcpus", ht.TInt),
13166 ("hypervisor", ht.TString),
13168 constants.IALLOCATOR_MODE_RELOC:
13169 (_AddRelocateInstance,
13170 [("name", ht.TString), ("relocate_from", _STRING_LIST)],
13172 constants.IALLOCATOR_MODE_NODE_EVAC:
13173 (_AddNodeEvacuate, [
13174 ("instances", _STRING_LIST),
13175 ("evac_mode", ht.TElemOf(constants.IALLOCATOR_NEVAC_MODES)),
13177 constants.IALLOCATOR_MODE_CHG_GROUP:
13178 (_AddChangeGroup, [
13179 ("instances", _STRING_LIST),
13180 ("target_groups", _STRING_LIST),
13184 def Run(self, name, validate=True, call_fn=None):
13185 """Run an instance allocator and return the results.
13188 if call_fn is None:
13189 call_fn = self.rpc.call_iallocator_runner
13191 result = call_fn(self.cfg.GetMasterNode(), name, self.in_text)
13192 result.Raise("Failure while running the iallocator script")
13194 self.out_text = result.payload
13196 self._ValidateResult()
13198 def _ValidateResult(self):
13199 """Process the allocator results.
13201 This will process and if successful save the result in
13202 self.out_data and the other parameters.
13206 rdict = serializer.Load(self.out_text)
13207 except Exception, err:
13208 raise errors.OpExecError("Can't parse iallocator results: %s" % str(err))
13210 if not isinstance(rdict, dict):
13211 raise errors.OpExecError("Can't parse iallocator results: not a dict")
13213 # TODO: remove backwards compatiblity in later versions
13214 if "nodes" in rdict and "result" not in rdict:
13215 rdict["result"] = rdict["nodes"]
13218 for key in "success", "info", "result":
13219 if key not in rdict:
13220 raise errors.OpExecError("Can't parse iallocator results:"
13221 " missing key '%s'" % key)
13222 setattr(self, key, rdict[key])
13224 if not self._result_check(self.result):
13225 raise errors.OpExecError("Iallocator returned invalid result,"
13226 " expected %s, got %s" %
13227 (self._result_check, self.result),
13228 errors.ECODE_INVAL)
13230 if self.mode == constants.IALLOCATOR_MODE_RELOC:
13231 assert self.relocate_from is not None
13232 assert self.required_nodes == 1
13234 node2group = dict((name, ndata["group"])
13235 for (name, ndata) in self.in_data["nodes"].items())
13237 fn = compat.partial(self._NodesToGroups, node2group,
13238 self.in_data["nodegroups"])
13240 instance = self.cfg.GetInstanceInfo(self.name)
13241 request_groups = fn(self.relocate_from + [instance.primary_node])
13242 result_groups = fn(rdict["result"] + [instance.primary_node])
13244 if self.success and not set(result_groups).issubset(request_groups):
13245 raise errors.OpExecError("Groups of nodes returned by iallocator (%s)"
13246 " differ from original groups (%s)" %
13247 (utils.CommaJoin(result_groups),
13248 utils.CommaJoin(request_groups)))
13250 elif self.mode == constants.IALLOCATOR_MODE_NODE_EVAC:
13251 assert self.evac_mode in constants.IALLOCATOR_NEVAC_MODES
13253 self.out_data = rdict
13256 def _NodesToGroups(node2group, groups, nodes):
13257 """Returns a list of unique group names for a list of nodes.
13259 @type node2group: dict
13260 @param node2group: Map from node name to group UUID
13262 @param groups: Group information
13264 @param nodes: Node names
13271 group_uuid = node2group[node]
13273 # Ignore unknown node
13277 group = groups[group_uuid]
13279 # Can't find group, let's use UUID
13280 group_name = group_uuid
13282 group_name = group["name"]
13284 result.add(group_name)
13286 return sorted(result)
13289 class LUTestAllocator(NoHooksLU):
13290 """Run allocator tests.
13292 This LU runs the allocator tests
13295 def CheckPrereq(self):
13296 """Check prerequisites.
13298 This checks the opcode parameters depending on the director and mode test.
13301 if self.op.mode == constants.IALLOCATOR_MODE_ALLOC:
13302 for attr in ["memory", "disks", "disk_template",
13303 "os", "tags", "nics", "vcpus"]:
13304 if not hasattr(self.op, attr):
13305 raise errors.OpPrereqError("Missing attribute '%s' on opcode input" %
13306 attr, errors.ECODE_INVAL)
13307 iname = self.cfg.ExpandInstanceName(self.op.name)
13308 if iname is not None:
13309 raise errors.OpPrereqError("Instance '%s' already in the cluster" %
13310 iname, errors.ECODE_EXISTS)
13311 if not isinstance(self.op.nics, list):
13312 raise errors.OpPrereqError("Invalid parameter 'nics'",
13313 errors.ECODE_INVAL)
13314 if not isinstance(self.op.disks, list):
13315 raise errors.OpPrereqError("Invalid parameter 'disks'",
13316 errors.ECODE_INVAL)
13317 for row in self.op.disks:
13318 if (not isinstance(row, dict) or
13319 constants.IDISK_SIZE not in row or
13320 not isinstance(row[constants.IDISK_SIZE], int) or
13321 constants.IDISK_MODE not in row or
13322 row[constants.IDISK_MODE] not in constants.DISK_ACCESS_SET):
13323 raise errors.OpPrereqError("Invalid contents of the 'disks'"
13324 " parameter", errors.ECODE_INVAL)
13325 if self.op.hypervisor is None:
13326 self.op.hypervisor = self.cfg.GetHypervisorType()
13327 elif self.op.mode == constants.IALLOCATOR_MODE_RELOC:
13328 fname = _ExpandInstanceName(self.cfg, self.op.name)
13329 self.op.name = fname
13330 self.relocate_from = \
13331 list(self.cfg.GetInstanceInfo(fname).secondary_nodes)
13332 elif self.op.mode in (constants.IALLOCATOR_MODE_CHG_GROUP,
13333 constants.IALLOCATOR_MODE_NODE_EVAC):
13334 if not self.op.instances:
13335 raise errors.OpPrereqError("Missing instances", errors.ECODE_INVAL)
13336 self.op.instances = _GetWantedInstances(self, self.op.instances)
13338 raise errors.OpPrereqError("Invalid test allocator mode '%s'" %
13339 self.op.mode, errors.ECODE_INVAL)
13341 if self.op.direction == constants.IALLOCATOR_DIR_OUT:
13342 if self.op.allocator is None:
13343 raise errors.OpPrereqError("Missing allocator name",
13344 errors.ECODE_INVAL)
13345 elif self.op.direction != constants.IALLOCATOR_DIR_IN:
13346 raise errors.OpPrereqError("Wrong allocator test '%s'" %
13347 self.op.direction, errors.ECODE_INVAL)
13349 def Exec(self, feedback_fn):
13350 """Run the allocator test.
13353 if self.op.mode == constants.IALLOCATOR_MODE_ALLOC:
13354 ial = IAllocator(self.cfg, self.rpc,
13357 memory=self.op.memory,
13358 disks=self.op.disks,
13359 disk_template=self.op.disk_template,
13363 vcpus=self.op.vcpus,
13364 hypervisor=self.op.hypervisor,
13366 elif self.op.mode == constants.IALLOCATOR_MODE_RELOC:
13367 ial = IAllocator(self.cfg, self.rpc,
13370 relocate_from=list(self.relocate_from),
13372 elif self.op.mode == constants.IALLOCATOR_MODE_CHG_GROUP:
13373 ial = IAllocator(self.cfg, self.rpc,
13375 instances=self.op.instances,
13376 target_groups=self.op.target_groups)
13377 elif self.op.mode == constants.IALLOCATOR_MODE_NODE_EVAC:
13378 ial = IAllocator(self.cfg, self.rpc,
13380 instances=self.op.instances,
13381 evac_mode=self.op.evac_mode)
13383 raise errors.ProgrammerError("Uncatched mode %s in"
13384 " LUTestAllocator.Exec", self.op.mode)
13386 if self.op.direction == constants.IALLOCATOR_DIR_IN:
13387 result = ial.in_text
13389 ial.Run(self.op.allocator, validate=False)
13390 result = ial.out_text
13394 #: Query type implementations
13396 constants.QR_INSTANCE: _InstanceQuery,
13397 constants.QR_NODE: _NodeQuery,
13398 constants.QR_GROUP: _GroupQuery,
13399 constants.QR_OS: _OsQuery,
13402 assert set(_QUERY_IMPL.keys()) == constants.QR_VIA_OP
13405 def _GetQueryImplementation(name):
13406 """Returns the implemtnation for a query type.
13408 @param name: Query type, must be one of L{constants.QR_VIA_OP}
13412 return _QUERY_IMPL[name]
13414 raise errors.OpPrereqError("Unknown query resource '%s'" % name,
13415 errors.ECODE_INVAL)