import os
import os.path
import time
-import tempfile
import re
import platform
import logging
import copy
-import random
from ganeti import ssh
from ganeti import utils
from ganeti import locking
from ganeti import constants
from ganeti import objects
-from ganeti import opcodes
from ganeti import serializer
from ganeti import ssconf
Subclasses must follow these rules:
- implement ExpandNames
- - implement CheckPrereq
- - implement Exec
+ - implement CheckPrereq (except when tasklets are used)
+ - implement Exec (except when tasklets are used)
- implement BuildHooksEnv
- redefine HPATH and HTYPE
- optionally redefine their run requirements:
Note that all commands require root permissions.
+ @ivar dry_run_result: the value (if any) that will be returned to the caller
+ in dry-run mode (signalled by opcode dry_run parameter)
+
"""
HPATH = None
HTYPE = None
def __init__(self, processor, op, context, rpc):
"""Constructor for LogicalUnit.
- This needs to be overriden in derived classes in order to check op
+ This needs to be overridden in derived classes in order to check op
validity.
"""
# Dicts used to declare locking needs to mcpu
self.needed_locks = None
self.acquired_locks = {}
- self.share_locks = dict(((i, 0) for i in locking.LEVELS))
+ self.share_locks = dict.fromkeys(locking.LEVELS, 0)
self.add_locks = {}
self.remove_locks = {}
# Used to force good behavior when calling helper functions
# logging
self.LogWarning = processor.LogWarning
self.LogInfo = processor.LogInfo
+ self.LogStep = processor.LogStep
+ # support for dry-run
+ self.dry_run_result = None
+
+ # Tasklets
+ self.tasklets = None
for attr_name in self._OP_REQP:
attr_val = getattr(op, attr_name, None)
if attr_val is None:
raise errors.OpPrereqError("Required parameter '%s' missing" %
attr_name)
+
self.CheckArguments()
def __GetSSH(self):
CheckPrereq, doing these separate is better because:
- ExpandNames is left as as purely a lock-related function
- - CheckPrereq is run after we have aquired locks (and possible
+ - CheckPrereq is run after we have acquired locks (and possible
waited for them)
The function is allowed to change the self.op attribute so that
level you can modify self.share_locks, setting a true value (usually 1) for
that level. By default locks are not shared.
+ This function can also define a list of tasklets, which then will be
+ executed in order instead of the usual LU-level CheckPrereq and Exec
+ functions, if those are not defined by the LU.
+
Examples::
# Acquire all nodes and one instance
their canonical form if it hasn't been done by ExpandNames before.
"""
- raise NotImplementedError
+ if self.tasklets is not None:
+ for (idx, tl) in enumerate(self.tasklets):
+ logging.debug("Checking prerequisites for tasklet %s/%s",
+ idx + 1, len(self.tasklets))
+ tl.CheckPrereq()
+ else:
+ raise NotImplementedError
def Exec(self, feedback_fn):
"""Execute the LU.
code, or expected.
"""
- raise NotImplementedError
+ if self.tasklets is not None:
+ for (idx, tl) in enumerate(self.tasklets):
+ logging.debug("Executing tasklet %s/%s", idx + 1, len(self.tasklets))
+ tl.Exec(feedback_fn)
+ else:
+ raise NotImplementedError
def BuildHooksEnv(self):
"""Build hooks environment for this LU.
HTYPE = None
+class Tasklet:
+ """Tasklet base class.
+
+ Tasklets are subcomponents for LUs. LUs can consist entirely of tasklets or
+ they can mix legacy code with tasklets. Locking needs to be done in the LU,
+ tasklets know nothing about locks.
+
+ Subclasses must follow these rules:
+ - Implement CheckPrereq
+ - Implement Exec
+
+ """
+ def __init__(self, lu):
+ self.lu = lu
+
+ # Shortcuts
+ self.cfg = lu.cfg
+ self.rpc = lu.rpc
+
+ def CheckPrereq(self):
+ """Check prerequisites for this tasklets.
+
+ This method should check whether the prerequisites for the execution of
+ this tasklet are fulfilled. It can do internode communication, but it
+ should be idempotent - no cluster or system changes are allowed.
+
+ The method should raise errors.OpPrereqError in case something is not
+ fulfilled. Its return value is ignored.
+
+ This method should also update all parameters to their canonical form if it
+ hasn't been done before.
+
+ """
+ raise NotImplementedError
+
+ def Exec(self, feedback_fn):
+ """Execute the tasklet.
+
+ This method should implement the actual work. It should raise
+ errors.OpExecError for failures that are somewhat dealt with in code, or
+ expected.
+
+ """
+ raise NotImplementedError
+
+
def _GetWantedNodes(lu, nodes):
"""Returns list of checked and expanded node names.
def _BuildInstanceHookEnv(name, primary_node, secondary_nodes, os_type, status,
memory, vcpus, nics, disk_template, disks,
- bep, hvp, hypervisor):
+ bep, hvp, hypervisor_name):
"""Builds instance related env variables for hooks
This builds the hook environment from individual variables.
@type vcpus: string
@param vcpus: the count of VCPUs the instance has
@type nics: list
- @param nics: list of tuples (ip, bridge, mac) representing
- the NICs the instance has
+ @param nics: list of tuples (ip, mac, mode, link) representing
+ the NICs the instance has
@type disk_template: string
- @param disk_template: the distk template of the instance
+ @param disk_template: the disk template of the instance
@type disks: list
@param disks: the list of (size, mode) pairs
@type bep: dict
@param bep: the backend parameters for the instance
@type hvp: dict
@param hvp: the hypervisor parameters for the instance
- @type hypervisor: string
- @param hypervisor: the hypervisor for the instance
+ @type hypervisor_name: string
+ @param hypervisor_name: the hypervisor for the instance
@rtype: dict
@return: the hook environment for this instance
"INSTANCE_MEMORY": memory,
"INSTANCE_VCPUS": vcpus,
"INSTANCE_DISK_TEMPLATE": disk_template,
- "INSTANCE_HYPERVISOR": hypervisor,
+ "INSTANCE_HYPERVISOR": hypervisor_name,
}
if nics:
return env
-def _PreBuildNICHooksList(lu, nics):
+
+def _NICListToTuple(lu, nics):
"""Build a list of nic information tuples.
- This list is suitable to be passed to _BuildInstanceHookEnv.
+ This list is suitable to be passed to _BuildInstanceHookEnv or as a return
+ value in LUQueryInstanceData.
@type lu: L{LogicalUnit}
@param lu: the logical unit on whose behalf we execute
hooks_nics.append((ip, mac, mode, link))
return hooks_nics
+
def _BuildInstanceHookEnvByObject(lu, instance, override=None):
"""Builds instance related env variables for hooks from an object.
'status': instance.admin_up,
'memory': bep[constants.BE_MEMORY],
'vcpus': bep[constants.BE_VCPUS],
- 'nics': _PreBuildNICHooksList(lu, instance.nics),
+ 'nics': _NICListToTuple(lu, instance.nics),
'disk_template': instance.disk_template,
'disks': [(disk.size, disk.mode) for disk in instance.disks],
'bep': bep,
'hvp': hvp,
- 'hypervisor': instance.hypervisor,
+ 'hypervisor_name': instance.hypervisor,
}
if override:
args.update(override)
return _BuildInstanceHookEnv(**args)
-def _AdjustCandidatePool(lu):
+def _AdjustCandidatePool(lu, exceptions):
"""Adjust the candidate pool after node operations.
"""
- mod_list = lu.cfg.MaintainCandidatePool()
+ mod_list = lu.cfg.MaintainCandidatePool(exceptions)
if mod_list:
lu.LogInfo("Promoted nodes to master candidate role: %s",
", ".join(node.name for node in mod_list))
for name in mod_list:
lu.context.ReaddNode(name)
- mc_now, mc_max = lu.cfg.GetMasterCandidateStats()
+ mc_now, mc_max, _ = lu.cfg.GetMasterCandidateStats(exceptions)
if mc_now > mc_max:
lu.LogInfo("Note: more nodes are candidates (%d) than desired (%d)" %
(mc_now, mc_max))
+def _DecideSelfPromotion(lu, exceptions=None):
+ """Decide whether I should promote myself as a master candidate.
+
+ """
+ cp_size = lu.cfg.GetClusterInfo().candidate_pool_size
+ mc_now, mc_should, _ = lu.cfg.GetMasterCandidateStats(exceptions)
+ # the new node will increase mc_max with one, so:
+ mc_should = min(mc_should + 1, cp_size)
+ return mc_now < mc_should
+
+
def _CheckNicsBridgesExist(lu, target_nics, target_node,
profile=constants.PP_DEFAULT):
"""Check that the brigdes needed by a list of nics exist.
"""
if node is None:
- node=instance.primary_node
+ node = instance.primary_node
_CheckNicsBridgesExist(lu, instance.nics, node)
-class LUDestroyCluster(NoHooksLU):
+def _GetNodeInstancesInner(cfg, fn):
+ return [i for i in cfg.GetAllInstancesInfo().values() if fn(i)]
+
+
+def _GetNodeInstances(cfg, node_name):
+ """Returns a list of all primary and secondary instances on a node.
+
+ """
+
+ return _GetNodeInstancesInner(cfg, lambda inst: node_name in inst.all_nodes)
+
+
+def _GetNodePrimaryInstances(cfg, node_name):
+ """Returns primary instances on a node.
+
+ """
+ return _GetNodeInstancesInner(cfg,
+ lambda inst: node_name == inst.primary_node)
+
+
+def _GetNodeSecondaryInstances(cfg, node_name):
+ """Returns secondary instances on a node.
+
+ """
+ return _GetNodeInstancesInner(cfg,
+ lambda inst: node_name in inst.secondary_nodes)
+
+
+def _GetStorageTypeArgs(cfg, storage_type):
+ """Returns the arguments for a storage type.
+
+ """
+ # Special case for file storage
+ if storage_type == constants.ST_FILE:
+ # storage.FileStorage wants a list of storage directories
+ return [[cfg.GetFileStorageDir()]]
+
+ return []
+
+
+def _FindFaultyInstanceDisks(cfg, rpc, instance, node_name, prereq):
+ faulty = []
+
+ for dev in instance.disks:
+ cfg.SetDiskID(dev, node_name)
+
+ result = rpc.call_blockdev_getmirrorstatus(node_name, instance.disks)
+ result.Raise("Failed to get disk status from node %s" % node_name,
+ prereq=prereq)
+
+ for idx, bdev_status in enumerate(result.payload):
+ if bdev_status and bdev_status.ldisk_status == constants.LDS_FAULTY:
+ faulty.append(idx)
+
+ return faulty
+
+
+class LUPostInitCluster(LogicalUnit):
+ """Logical unit for running hooks after cluster initialization.
+
+ """
+ HPATH = "cluster-init"
+ HTYPE = constants.HTYPE_CLUSTER
+ _OP_REQP = []
+
+ def BuildHooksEnv(self):
+ """Build hooks env.
+
+ """
+ env = {"OP_TARGET": self.cfg.GetClusterName()}
+ mn = self.cfg.GetMasterNode()
+ return env, [], [mn]
+
+ def CheckPrereq(self):
+ """No prerequisites to check.
+
+ """
+ return True
+
+ def Exec(self, feedback_fn):
+ """Nothing to do.
+
+ """
+ return True
+
+
+class LUDestroyCluster(LogicalUnit):
"""Logical unit for destroying the cluster.
"""
+ HPATH = "cluster-destroy"
+ HTYPE = constants.HTYPE_CLUSTER
_OP_REQP = []
+ def BuildHooksEnv(self):
+ """Build hooks env.
+
+ """
+ env = {"OP_TARGET": self.cfg.GetClusterName()}
+ return env, [], []
+
def CheckPrereq(self):
"""Check prerequisites.
This checks whether the cluster is empty.
- Any errors are signalled by raising errors.OpPrereqError.
+ Any errors are signaled by raising errors.OpPrereqError.
"""
master = self.cfg.GetMasterNode()
"""
master = self.cfg.GetMasterNode()
+
+ # Run post hooks on master node before it's removed
+ hm = self.proc.hmclass(self.rpc.call_hooks_runner, self)
+ try:
+ hm.RunPhase(constants.HOOKS_PHASE_POST, [master])
+ except:
+ self.LogWarning("Errors occurred running hooks on %s" % master)
+
result = self.rpc.call_node_stop_master(master, False)
result.Raise("Could not disable the master role")
priv_key, pub_key, _ = ssh.GetUserFiles(constants.GANETI_RUNAS)
"""
HPATH = "cluster-verify"
HTYPE = constants.HTYPE_CLUSTER
- _OP_REQP = ["skip_checks"]
+ _OP_REQP = ["skip_checks", "verbose", "error_codes", "debug_simulate_errors"]
REQ_BGL = False
+ TCLUSTER = "cluster"
+ TNODE = "node"
+ TINSTANCE = "instance"
+
+ ECLUSTERCFG = (TCLUSTER, "ECLUSTERCFG")
+ EINSTANCEBADNODE = (TINSTANCE, "EINSTANCEBADNODE")
+ EINSTANCEDOWN = (TINSTANCE, "EINSTANCEDOWN")
+ EINSTANCELAYOUT = (TINSTANCE, "EINSTANCELAYOUT")
+ EINSTANCEMISSINGDISK = (TINSTANCE, "EINSTANCEMISSINGDISK")
+ EINSTANCEMISSINGDISK = (TINSTANCE, "EINSTANCEMISSINGDISK")
+ EINSTANCEWRONGNODE = (TINSTANCE, "EINSTANCEWRONGNODE")
+ ENODEDRBD = (TNODE, "ENODEDRBD")
+ ENODEFILECHECK = (TNODE, "ENODEFILECHECK")
+ ENODEHOOKS = (TNODE, "ENODEHOOKS")
+ ENODEHV = (TNODE, "ENODEHV")
+ ENODELVM = (TNODE, "ENODELVM")
+ ENODEN1 = (TNODE, "ENODEN1")
+ ENODENET = (TNODE, "ENODENET")
+ ENODEORPHANINSTANCE = (TNODE, "ENODEORPHANINSTANCE")
+ ENODEORPHANLV = (TNODE, "ENODEORPHANLV")
+ ENODERPC = (TNODE, "ENODERPC")
+ ENODESSH = (TNODE, "ENODESSH")
+ ENODEVERSION = (TNODE, "ENODEVERSION")
+
+ ETYPE_FIELD = "code"
+ ETYPE_ERROR = "ERROR"
+ ETYPE_WARNING = "WARNING"
+
def ExpandNames(self):
self.needed_locks = {
locking.LEVEL_NODE: locking.ALL_SET,
locking.LEVEL_INSTANCE: locking.ALL_SET,
}
- self.share_locks = dict(((i, 1) for i in locking.LEVELS))
+ self.share_locks = dict.fromkeys(locking.LEVELS, 1)
+
+ def _Error(self, ecode, item, msg, *args, **kwargs):
+ """Format an error message.
+
+ Based on the opcode's error_codes parameter, either format a
+ parseable error code, or a simpler error string.
+
+ This must be called only from Exec and functions called from Exec.
+
+ """
+ ltype = kwargs.get(self.ETYPE_FIELD, self.ETYPE_ERROR)
+ itype, etxt = ecode
+ # first complete the msg
+ if args:
+ msg = msg % args
+ # then format the whole message
+ if self.op.error_codes:
+ msg = "%s:%s:%s:%s:%s" % (ltype, etxt, itype, item, msg)
+ else:
+ if item:
+ item = " " + item
+ else:
+ item = ""
+ msg = "%s: %s%s: %s" % (ltype, itype, item, msg)
+ # and finally report it via the feedback_fn
+ self._feedback_fn(" - %s" % msg)
+
+ def _ErrorIf(self, cond, *args, **kwargs):
+ """Log an error message if the passed condition is True.
+
+ """
+ cond = bool(cond) or self.op.debug_simulate_errors
+ if cond:
+ self._Error(*args, **kwargs)
+ # do not mark the operation as failed for WARN cases only
+ if kwargs.get(self.ETYPE_FIELD, self.ETYPE_ERROR) == self.ETYPE_ERROR:
+ self.bad = self.bad or cond
def _VerifyNode(self, nodeinfo, file_list, local_cksum,
- node_result, feedback_fn, master_files,
- drbd_map, vg_name):
+ node_result, master_files, drbd_map, vg_name):
"""Run multiple tests against a node.
Test list:
- compares ganeti version
- - checks vg existance and size > 20G
+ - checks vg existence and size > 20G
- checks config file checksum
- checks ssh to other nodes
@param file_list: required list of files
@param local_cksum: dictionary of local files and their checksums
@param node_result: the results from the node
- @param feedback_fn: function used to accumulate results
@param master_files: list of files that only masters should have
@param drbd_map: the useddrbd minors for this node, in
form of minor: (instance, must_exist) which correspond to instances
"""
node = nodeinfo.name
+ _ErrorIf = self._ErrorIf
# main result, node_result should be a non-empty dict
- if not node_result or not isinstance(node_result, dict):
- feedback_fn(" - ERROR: unable to verify node %s." % (node,))
- return True
+ test = not node_result or not isinstance(node_result, dict)
+ _ErrorIf(test, self.ENODERPC, node,
+ "unable to verify node: no data returned")
+ if test:
+ return
# compares ganeti version
local_version = constants.PROTOCOL_VERSION
remote_version = node_result.get('version', None)
- if not (remote_version and isinstance(remote_version, (list, tuple)) and
- len(remote_version) == 2):
- feedback_fn(" - ERROR: connection to %s failed" % (node))
- return True
-
- if local_version != remote_version[0]:
- feedback_fn(" - ERROR: incompatible protocol versions: master %s,"
- " node %s %s" % (local_version, node, remote_version[0]))
- return True
+ test = not (remote_version and
+ isinstance(remote_version, (list, tuple)) and
+ len(remote_version) == 2)
+ _ErrorIf(test, self.ENODERPC, node,
+ "connection to node returned invalid data")
+ if test:
+ return
+
+ test = local_version != remote_version[0]
+ _ErrorIf(test, self.ENODEVERSION, node,
+ "incompatible protocol versions: master %s,"
+ " node %s", local_version, remote_version[0])
+ if test:
+ return
# node seems compatible, we can actually try to look into its results
- bad = False
-
# full package version
- if constants.RELEASE_VERSION != remote_version[1]:
- feedback_fn(" - WARNING: software version mismatch: master %s,"
- " node %s %s" %
- (constants.RELEASE_VERSION, node, remote_version[1]))
+ self._ErrorIf(constants.RELEASE_VERSION != remote_version[1],
+ self.ENODEVERSION, node,
+ "software version mismatch: master %s, node %s",
+ constants.RELEASE_VERSION, remote_version[1],
+ code=self.ETYPE_WARNING)
# checks vg existence and size > 20G
if vg_name is not None:
vglist = node_result.get(constants.NV_VGLIST, None)
- if not vglist:
- feedback_fn(" - ERROR: unable to check volume groups on node %s." %
- (node,))
- bad = True
- else:
+ test = not vglist
+ _ErrorIf(test, self.ENODELVM, node, "unable to check volume groups")
+ if not test:
vgstatus = utils.CheckVolumeGroupSize(vglist, vg_name,
constants.MIN_VG_SIZE)
- if vgstatus:
- feedback_fn(" - ERROR: %s on node %s" % (vgstatus, node))
- bad = True
+ _ErrorIf(vgstatus, self.ENODELVM, node, vgstatus)
# checks config file checksum
remote_cksum = node_result.get(constants.NV_FILELIST, None)
- if not isinstance(remote_cksum, dict):
- bad = True
- feedback_fn(" - ERROR: node hasn't returned file checksum data")
- else:
+ test = not isinstance(remote_cksum, dict)
+ _ErrorIf(test, self.ENODEFILECHECK, node,
+ "node hasn't returned file checksum data")
+ if not test:
for file_name in file_list:
node_is_mc = nodeinfo.master_candidate
- must_have_file = file_name not in master_files
- if file_name not in remote_cksum:
- if node_is_mc or must_have_file:
- bad = True
- feedback_fn(" - ERROR: file '%s' missing" % file_name)
- elif remote_cksum[file_name] != local_cksum[file_name]:
- if node_is_mc or must_have_file:
- bad = True
- feedback_fn(" - ERROR: file '%s' has wrong checksum" % file_name)
- else:
- # not candidate and this is not a must-have file
- bad = True
- feedback_fn(" - ERROR: non master-candidate has old/wrong file"
- " '%s'" % file_name)
- else:
- # all good, except non-master/non-must have combination
- if not node_is_mc and not must_have_file:
- feedback_fn(" - ERROR: file '%s' should not exist on non master"
- " candidates" % file_name)
+ must_have = (file_name not in master_files) or node_is_mc
+ # missing
+ test1 = file_name not in remote_cksum
+ # invalid checksum
+ test2 = not test1 and remote_cksum[file_name] != local_cksum[file_name]
+ # existing and good
+ test3 = not test1 and remote_cksum[file_name] == local_cksum[file_name]
+ _ErrorIf(test1 and must_have, self.ENODEFILECHECK, node,
+ "file '%s' missing", file_name)
+ _ErrorIf(test2 and must_have, self.ENODEFILECHECK, node,
+ "file '%s' has wrong checksum", file_name)
+ # not candidate and this is not a must-have file
+ _ErrorIf(test2 and not must_have, self.ENODEFILECHECK, node,
+ "file '%s' should not exist on non master"
+ " candidates (and the file is outdated)", file_name)
+ # all good, except non-master/non-must have combination
+ _ErrorIf(test3 and not must_have, self.ENODEFILECHECK, node,
+ "file '%s' should not exist"
+ " on non master candidates", file_name)
# checks ssh to any
- if constants.NV_NODELIST not in node_result:
- bad = True
- feedback_fn(" - ERROR: node hasn't returned node ssh connectivity data")
- else:
+ test = constants.NV_NODELIST not in node_result
+ _ErrorIf(test, self.ENODESSH, node,
+ "node hasn't returned node ssh connectivity data")
+ if not test:
if node_result[constants.NV_NODELIST]:
- bad = True
- for node in node_result[constants.NV_NODELIST]:
- feedback_fn(" - ERROR: ssh communication with node '%s': %s" %
- (node, node_result[constants.NV_NODELIST][node]))
-
- if constants.NV_NODENETTEST not in node_result:
- bad = True
- feedback_fn(" - ERROR: node hasn't returned node tcp connectivity data")
- else:
+ for a_node, a_msg in node_result[constants.NV_NODELIST].items():
+ _ErrorIf(True, self.ENODESSH, node,
+ "ssh communication with node '%s': %s", a_node, a_msg)
+
+ test = constants.NV_NODENETTEST not in node_result
+ _ErrorIf(test, self.ENODENET, node,
+ "node hasn't returned node tcp connectivity data")
+ if not test:
if node_result[constants.NV_NODENETTEST]:
- bad = True
nlist = utils.NiceSort(node_result[constants.NV_NODENETTEST].keys())
- for node in nlist:
- feedback_fn(" - ERROR: tcp communication with node '%s': %s" %
- (node, node_result[constants.NV_NODENETTEST][node]))
+ for anode in nlist:
+ _ErrorIf(True, self.ENODENET, node,
+ "tcp communication with node '%s': %s",
+ anode, node_result[constants.NV_NODENETTEST][anode])
hyp_result = node_result.get(constants.NV_HYPERVISOR, None)
if isinstance(hyp_result, dict):
for hv_name, hv_result in hyp_result.iteritems():
- if hv_result is not None:
- feedback_fn(" - ERROR: hypervisor %s verify failure: '%s'" %
- (hv_name, hv_result))
+ test = hv_result is not None
+ _ErrorIf(test, self.ENODEHV, node,
+ "hypervisor %s verify failure: '%s'", hv_name, hv_result)
# check used drbd list
if vg_name is not None:
used_minors = node_result.get(constants.NV_DRBDLIST, [])
- if not isinstance(used_minors, (tuple, list)):
- feedback_fn(" - ERROR: cannot parse drbd status file: %s" %
- str(used_minors))
- else:
+ test = not isinstance(used_minors, (tuple, list))
+ _ErrorIf(test, self.ENODEDRBD, node,
+ "cannot parse drbd status file: %s", str(used_minors))
+ if not test:
for minor, (iname, must_exist) in drbd_map.items():
- if minor not in used_minors and must_exist:
- feedback_fn(" - ERROR: drbd minor %d of instance %s is"
- " not active" % (minor, iname))
- bad = True
+ test = minor not in used_minors and must_exist
+ _ErrorIf(test, self.ENODEDRBD, node,
+ "drbd minor %d of instance %s is not active",
+ minor, iname)
for minor in used_minors:
- if minor not in drbd_map:
- feedback_fn(" - ERROR: unallocated drbd minor %d is in use" %
- minor)
- bad = True
-
- return bad
+ test = minor not in drbd_map
+ _ErrorIf(test, self.ENODEDRBD, node,
+ "unallocated drbd minor %d is in use", minor)
def _VerifyInstance(self, instance, instanceconfig, node_vol_is,
- node_instance, feedback_fn, n_offline):
+ node_instance, n_offline):
"""Verify an instance.
This function checks to see if the required block devices are
available on the instance's node.
"""
- bad = False
-
+ _ErrorIf = self._ErrorIf
node_current = instanceconfig.primary_node
node_vol_should = {}
# ignore missing volumes on offline nodes
continue
for volume in node_vol_should[node]:
- if node not in node_vol_is or volume not in node_vol_is[node]:
- feedback_fn(" - ERROR: volume %s missing on node %s" %
- (volume, node))
- bad = True
+ test = node not in node_vol_is or volume not in node_vol_is[node]
+ _ErrorIf(test, self.EINSTANCEMISSINGDISK, instance,
+ "volume %s missing on node %s", volume, node)
if instanceconfig.admin_up:
- if ((node_current not in node_instance or
- not instance in node_instance[node_current]) and
- node_current not in n_offline):
- feedback_fn(" - ERROR: instance %s not running on node %s" %
- (instance, node_current))
- bad = True
+ test = ((node_current not in node_instance or
+ not instance in node_instance[node_current]) and
+ node_current not in n_offline)
+ _ErrorIf(test, self.EINSTANCEDOWN, instance,
+ "instance not running on its primary node %s",
+ node_current)
for node in node_instance:
if (not node == node_current):
- if instance in node_instance[node]:
- feedback_fn(" - ERROR: instance %s should not run on node %s" %
- (instance, node))
- bad = True
-
- return bad
+ test = instance in node_instance[node]
+ _ErrorIf(test, self.EINSTANCEWRONGNODE, instance,
+ "instance should not run on node %s", node)
- def _VerifyOrphanVolumes(self, node_vol_should, node_vol_is, feedback_fn):
+ def _VerifyOrphanVolumes(self, node_vol_should, node_vol_is):
"""Verify if there are any unknown volumes in the cluster.
The .os, .swap and backup volumes are ignored. All other volumes are
reported as unknown.
"""
- bad = False
-
for node in node_vol_is:
for volume in node_vol_is[node]:
- if node not in node_vol_should or volume not in node_vol_should[node]:
- feedback_fn(" - ERROR: volume %s on node %s should not exist" %
- (volume, node))
- bad = True
- return bad
+ test = (node not in node_vol_should or
+ volume not in node_vol_should[node])
+ self._ErrorIf(test, self.ENODEORPHANLV, node,
+ "volume %s is unknown", volume)
- def _VerifyOrphanInstances(self, instancelist, node_instance, feedback_fn):
+ def _VerifyOrphanInstances(self, instancelist, node_instance):
"""Verify the list of running instances.
This checks what instances are running but unknown to the cluster.
"""
- bad = False
for node in node_instance:
- for runninginstance in node_instance[node]:
- if runninginstance not in instancelist:
- feedback_fn(" - ERROR: instance %s on node %s should not exist" %
- (runninginstance, node))
- bad = True
- return bad
-
- def _VerifyNPlusOneMemory(self, node_info, instance_cfg, feedback_fn):
+ for o_inst in node_instance[node]:
+ test = o_inst not in instancelist
+ self._ErrorIf(test, self.ENODEORPHANINSTANCE, node,
+ "instance %s on node %s should not exist", o_inst, node)
+
+ def _VerifyNPlusOneMemory(self, node_info, instance_cfg):
"""Verify N+1 Memory Resilience.
Check that if one single node dies we can still start all the instances it
was primary for.
"""
- bad = False
-
for node, nodeinfo in node_info.iteritems():
# This code checks that every node which is now listed as secondary has
# enough memory to host all instances it is supposed to should a single
bep = self.cfg.GetClusterInfo().FillBE(instance_cfg[instance])
if bep[constants.BE_AUTO_BALANCE]:
needed_mem += bep[constants.BE_MEMORY]
- if nodeinfo['mfree'] < needed_mem:
- feedback_fn(" - ERROR: not enough memory on node %s to accomodate"
- " failovers should node %s fail" % (node, prinode))
- bad = True
- return bad
+ test = nodeinfo['mfree'] < needed_mem
+ self._ErrorIf(test, self.ENODEN1, node,
+ "not enough memory on to accommodate"
+ " failovers should peer node %s fail", prinode)
def CheckPrereq(self):
"""Check prerequisites.
def BuildHooksEnv(self):
"""Build hooks env.
- Cluster-Verify hooks just rone in the post phase and their failure makes
+ Cluster-Verify hooks just ran in the post phase and their failure makes
the output be logged in the verify output and the verification to fail.
"""
"""Verify integrity of cluster, performing various test on nodes.
"""
- bad = False
+ self.bad = False
+ _ErrorIf = self._ErrorIf
+ verbose = self.op.verbose
+ self._feedback_fn = feedback_fn
feedback_fn("* Verifying global settings")
for msg in self.cfg.VerifyConfig():
- feedback_fn(" - ERROR: %s" % msg)
+ _ErrorIf(True, self.ECLUSTERCFG, None, msg)
vg_name = self.cfg.GetVGName()
hypervisors = self.cfg.GetClusterInfo().enabled_hypervisors
master_node = self.cfg.GetMasterNode()
all_drbd_map = self.cfg.ComputeDRBDMap()
+ feedback_fn("* Verifying node status")
for node_i in nodeinfo:
node = node_i.name
if node_i.offline:
- feedback_fn("* Skipping offline node %s" % (node,))
+ if verbose:
+ feedback_fn("* Skipping offline node %s" % (node,))
n_offline.append(node)
continue
n_drained.append(node)
else:
ntype = "regular"
- feedback_fn("* Verifying node %s (%s)" % (node, ntype))
+ if verbose:
+ feedback_fn("* Verifying node %s (%s)" % (node, ntype))
msg = all_nvinfo[node].fail_msg
+ _ErrorIf(msg, self.ENODERPC, node, "while contacting node: %s", msg)
if msg:
- feedback_fn(" - ERROR: while contacting node %s: %s" % (node, msg))
- bad = True
continue
nresult = all_nvinfo[node].payload
node_drbd = {}
for minor, instance in all_drbd_map[node].items():
- if instance not in instanceinfo:
- feedback_fn(" - ERROR: ghost instance '%s' in temporary DRBD map" %
- instance)
+ test = instance not in instanceinfo
+ _ErrorIf(test, self.ECLUSTERCFG, None,
+ "ghost instance '%s' in temporary DRBD map", instance)
# ghost instance should not be running, but otherwise we
# don't give double warnings (both ghost instance and
# unallocated minor in use)
+ if test:
node_drbd[minor] = (instance, False)
else:
instance = instanceinfo[instance]
node_drbd[minor] = (instance.name, instance.admin_up)
- result = self._VerifyNode(node_i, file_names, local_checksums,
- nresult, feedback_fn, master_files,
- node_drbd, vg_name)
- bad = bad or result
+ self._VerifyNode(node_i, file_names, local_checksums,
+ nresult, master_files, node_drbd, vg_name)
lvdata = nresult.get(constants.NV_LVLIST, "Missing LV data")
if vg_name is None:
node_volume[node] = {}
elif isinstance(lvdata, basestring):
- feedback_fn(" - ERROR: LVM problem on node %s: %s" %
- (node, utils.SafeEncode(lvdata)))
- bad = True
+ _ErrorIf(True, self.ENODELVM, node, "LVM problem on node: %s",
+ utils.SafeEncode(lvdata))
node_volume[node] = {}
elif not isinstance(lvdata, dict):
- feedback_fn(" - ERROR: connection to %s failed (lvlist)" % (node,))
- bad = True
+ _ErrorIf(True, self.ENODELVM, node, "rpc call to node failed (lvlist)")
continue
else:
node_volume[node] = lvdata
# node_instance
idata = nresult.get(constants.NV_INSTANCELIST, None)
- if not isinstance(idata, list):
- feedback_fn(" - ERROR: connection to %s failed (instancelist)" %
- (node,))
- bad = True
+ test = not isinstance(idata, list)
+ _ErrorIf(test, self.ENODEHV, node,
+ "rpc call to node failed (instancelist)")
+ if test:
continue
node_instance[node] = idata
# node_info
nodeinfo = nresult.get(constants.NV_HVINFO, None)
- if not isinstance(nodeinfo, dict):
- feedback_fn(" - ERROR: connection to %s failed (hvinfo)" % (node,))
- bad = True
+ test = not isinstance(nodeinfo, dict)
+ _ErrorIf(test, self.ENODEHV, node, "rpc call to node failed (hvinfo)")
+ if test:
continue
try:
}
# FIXME: devise a free space model for file based instances as well
if vg_name is not None:
- if (constants.NV_VGLIST not in nresult or
- vg_name not in nresult[constants.NV_VGLIST]):
- feedback_fn(" - ERROR: node %s didn't return data for the"
- " volume group '%s' - it is either missing or broken" %
- (node, vg_name))
- bad = True
+ test = (constants.NV_VGLIST not in nresult or
+ vg_name not in nresult[constants.NV_VGLIST])
+ _ErrorIf(test, self.ENODELVM, node,
+ "node didn't return data for the volume group '%s'"
+ " - it is either missing or broken", vg_name)
+ if test:
continue
node_info[node]["dfree"] = int(nresult[constants.NV_VGLIST][vg_name])
except (ValueError, KeyError):
- feedback_fn(" - ERROR: invalid nodeinfo value returned"
- " from node %s" % (node,))
- bad = True
+ _ErrorIf(True, self.ENODERPC, node,
+ "node returned invalid nodeinfo, check lvm/hypervisor")
continue
node_vol_should = {}
+ feedback_fn("* Verifying instance status")
for instance in instancelist:
- feedback_fn("* Verifying instance %s" % instance)
+ if verbose:
+ feedback_fn("* Verifying instance %s" % instance)
inst_config = instanceinfo[instance]
- result = self._VerifyInstance(instance, inst_config, node_volume,
- node_instance, feedback_fn, n_offline)
- bad = bad or result
+ self._VerifyInstance(instance, inst_config, node_volume,
+ node_instance, n_offline)
inst_nodes_offline = []
inst_config.MapLVsByNode(node_vol_should)
instance_cfg[instance] = inst_config
pnode = inst_config.primary_node
+ _ErrorIf(pnode not in node_info and pnode not in n_offline,
+ self.ENODERPC, pnode, "instance %s, connection to"
+ " primary node failed", instance)
if pnode in node_info:
node_info[pnode]['pinst'].append(instance)
- elif pnode not in n_offline:
- feedback_fn(" - ERROR: instance %s, connection to primary node"
- " %s failed" % (instance, pnode))
- bad = True
if pnode in n_offline:
inst_nodes_offline.append(pnode)
# FIXME: does not support file-backed instances
if len(inst_config.secondary_nodes) == 0:
i_non_redundant.append(instance)
- elif len(inst_config.secondary_nodes) > 1:
- feedback_fn(" - WARNING: multiple secondaries for instance %s"
- % instance)
+ _ErrorIf(len(inst_config.secondary_nodes) > 1,
+ self.EINSTANCELAYOUT, instance,
+ "instance has multiple secondary nodes", code="WARNING")
if not cluster.FillBE(inst_config)[constants.BE_AUTO_BALANCE]:
i_non_a_balanced.append(instance)
for snode in inst_config.secondary_nodes:
+ _ErrorIf(snode not in node_info and snode not in n_offline,
+ self.ENODERPC, snode,
+ "instance %s, connection to secondary node"
+ "failed", instance)
+
if snode in node_info:
node_info[snode]['sinst'].append(instance)
if pnode not in node_info[snode]['sinst-by-pnode']:
node_info[snode]['sinst-by-pnode'][pnode] = []
node_info[snode]['sinst-by-pnode'][pnode].append(instance)
- elif snode not in n_offline:
- feedback_fn(" - ERROR: instance %s, connection to secondary node"
- " %s failed" % (instance, snode))
- bad = True
+
if snode in n_offline:
inst_nodes_offline.append(snode)
- if inst_nodes_offline:
- # warn that the instance lives on offline nodes, and set bad=True
- feedback_fn(" - ERROR: instance lives on offline node(s) %s" %
- ", ".join(inst_nodes_offline))
- bad = True
+ # warn that the instance lives on offline nodes
+ _ErrorIf(inst_nodes_offline, self.EINSTANCEBADNODE, instance,
+ "instance lives on offline node(s) %s",
+ ", ".join(inst_nodes_offline))
feedback_fn("* Verifying orphan volumes")
- result = self._VerifyOrphanVolumes(node_vol_should, node_volume,
- feedback_fn)
- bad = bad or result
+ self._VerifyOrphanVolumes(node_vol_should, node_volume)
feedback_fn("* Verifying remaining instances")
- result = self._VerifyOrphanInstances(instancelist, node_instance,
- feedback_fn)
- bad = bad or result
+ self._VerifyOrphanInstances(instancelist, node_instance)
if constants.VERIFY_NPLUSONE_MEM not in self.skip_set:
feedback_fn("* Verifying N+1 Memory redundancy")
- result = self._VerifyNPlusOneMemory(node_info, instance_cfg, feedback_fn)
- bad = bad or result
+ self._VerifyNPlusOneMemory(node_info, instance_cfg)
feedback_fn("* Other Notes")
if i_non_redundant:
if n_drained:
feedback_fn(" - NOTICE: %d drained node(s) found." % len(n_drained))
- return not bad
+ return not self.bad
def HooksCallBack(self, phase, hooks_results, feedback_fn, lu_result):
- """Analize the post-hooks' result
+ """Analyze the post-hooks' result
This method analyses the hook result, handles it, and sends some
nicely-formatted feedback back to the user.
# Used to change hooks' output to proper indentation
indent_re = re.compile('^', re.M)
feedback_fn("* Hooks Results")
- if not hooks_results:
- feedback_fn(" - ERROR: general communication failure")
- lu_result = 1
- else:
- for node_name in hooks_results:
- show_node_header = True
- res = hooks_results[node_name]
- msg = res.fail_msg
- if msg:
- if res.offline:
- # no need to warn or set fail return value
- continue
- feedback_fn(" Communication failure in hooks execution: %s" %
- msg)
+ assert hooks_results, "invalid result from hooks"
+
+ for node_name in hooks_results:
+ show_node_header = True
+ res = hooks_results[node_name]
+ msg = res.fail_msg
+ test = msg and not res.offline
+ self._ErrorIf(test, self.ENODEHOOKS, node_name,
+ "Communication failure in hooks execution: %s", msg)
+ if test:
+ # override manually lu_result here as _ErrorIf only
+ # overrides self.bad
+ lu_result = 1
+ continue
+ for script, hkr, output in res.payload:
+ test = hkr == constants.HKR_FAIL
+ self._ErrorIf(test, self.ENODEHOOKS, node_name,
+ "Script %s failed, output:", script)
+ if test:
+ output = indent_re.sub(' ', output)
+ feedback_fn("%s" % output)
lu_result = 1
- continue
- for script, hkr, output in res.payload:
- if hkr == constants.HKR_FAIL:
- # The node header is only shown once, if there are
- # failing hooks on that node
- if show_node_header:
- feedback_fn(" Node %s:" % node_name)
- show_node_header = False
- feedback_fn(" ERROR: Script %s failed, output:" % script)
- output = indent_re.sub(' ', output)
- feedback_fn("%s" % output)
- lu_result = 1
return lu_result
locking.LEVEL_NODE: locking.ALL_SET,
locking.LEVEL_INSTANCE: locking.ALL_SET,
}
- self.share_locks = dict(((i, 1) for i in locking.LEVELS))
+ self.share_locks = dict.fromkeys(locking.LEVELS, 1)
def CheckPrereq(self):
"""Check prerequisites.
if not nv_dict:
return result
- node_lvs = self.rpc.call_volume_list(nodes, vg_name)
+ node_lvs = self.rpc.call_lv_list(nodes, vg_name)
- to_act = set()
for node in nodes:
# node_volume
node_res = node_lvs[node]
return result
+class LURepairDiskSizes(NoHooksLU):
+ """Verifies the cluster disks sizes.
+
+ """
+ _OP_REQP = ["instances"]
+ REQ_BGL = False
+
+ def ExpandNames(self):
+ if not isinstance(self.op.instances, list):
+ raise errors.OpPrereqError("Invalid argument type 'instances'")
+
+ if self.op.instances:
+ self.wanted_names = []
+ for name in self.op.instances:
+ full_name = self.cfg.ExpandInstanceName(name)
+ if full_name is None:
+ raise errors.OpPrereqError("Instance '%s' not known" % name)
+ self.wanted_names.append(full_name)
+ self.needed_locks = {
+ locking.LEVEL_NODE: [],
+ locking.LEVEL_INSTANCE: self.wanted_names,
+ }
+ self.recalculate_locks[locking.LEVEL_NODE] = constants.LOCKS_REPLACE
+ else:
+ self.wanted_names = None
+ self.needed_locks = {
+ locking.LEVEL_NODE: locking.ALL_SET,
+ locking.LEVEL_INSTANCE: locking.ALL_SET,
+ }
+ self.share_locks = dict(((i, 1) for i in locking.LEVELS))
+
+ def DeclareLocks(self, level):
+ if level == locking.LEVEL_NODE and self.wanted_names is not None:
+ self._LockInstancesNodes(primary_only=True)
+
+ def CheckPrereq(self):
+ """Check prerequisites.
+
+ This only checks the optional instance list against the existing names.
+
+ """
+ if self.wanted_names is None:
+ self.wanted_names = self.acquired_locks[locking.LEVEL_INSTANCE]
+
+ self.wanted_instances = [self.cfg.GetInstanceInfo(name) for name
+ in self.wanted_names]
+
+ def _EnsureChildSizes(self, disk):
+ """Ensure children of the disk have the needed disk size.
+
+ This is valid mainly for DRBD8 and fixes an issue where the
+ children have smaller disk size.
+
+ @param disk: an L{ganeti.objects.Disk} object
+
+ """
+ if disk.dev_type == constants.LD_DRBD8:
+ assert disk.children, "Empty children for DRBD8?"
+ fchild = disk.children[0]
+ mismatch = fchild.size < disk.size
+ if mismatch:
+ self.LogInfo("Child disk has size %d, parent %d, fixing",
+ fchild.size, disk.size)
+ fchild.size = disk.size
+
+ # and we recurse on this child only, not on the metadev
+ return self._EnsureChildSizes(fchild) or mismatch
+ else:
+ return False
+
+ def Exec(self, feedback_fn):
+ """Verify the size of cluster disks.
+
+ """
+ # TODO: check child disks too
+ # TODO: check differences in size between primary/secondary nodes
+ per_node_disks = {}
+ for instance in self.wanted_instances:
+ pnode = instance.primary_node
+ if pnode not in per_node_disks:
+ per_node_disks[pnode] = []
+ for idx, disk in enumerate(instance.disks):
+ per_node_disks[pnode].append((instance, idx, disk))
+
+ changed = []
+ for node, dskl in per_node_disks.items():
+ newl = [v[2].Copy() for v in dskl]
+ for dsk in newl:
+ self.cfg.SetDiskID(dsk, node)
+ result = self.rpc.call_blockdev_getsizes(node, newl)
+ if result.fail_msg:
+ self.LogWarning("Failure in blockdev_getsizes call to node"
+ " %s, ignoring", node)
+ continue
+ if len(result.data) != len(dskl):
+ self.LogWarning("Invalid result from node %s, ignoring node results",
+ node)
+ continue
+ for ((instance, idx, disk), size) in zip(dskl, result.data):
+ if size is None:
+ self.LogWarning("Disk %d of instance %s did not return size"
+ " information, ignoring", idx, instance.name)
+ continue
+ if not isinstance(size, (int, long)):
+ self.LogWarning("Disk %d of instance %s did not return valid"
+ " size information, ignoring", idx, instance.name)
+ continue
+ size = size >> 20
+ if size != disk.size:
+ self.LogInfo("Disk %d of instance %s has mismatched size,"
+ " correcting: recorded %d, actual %d", idx,
+ instance.name, disk.size, size)
+ disk.size = size
+ self.cfg.Update(instance)
+ changed.append((instance.name, idx, size))
+ if self._EnsureChildSizes(disk):
+ self.cfg.Update(instance)
+ changed.append((instance.name, idx, disk.size))
+ return changed
+
+
class LURenameCluster(LogicalUnit):
"""Rename the cluster.
self.proc.LogWarning(msg)
finally:
- result = self.rpc.call_node_start_master(master, False)
+ result = self.rpc.call_node_start_master(master, False, False)
msg = result.fail_msg
if msg:
self.LogWarning("Could not re-enable the master role on"
@type disk: L{objects.Disk}
@param disk: the disk to check
- @rtype: booleean
+ @rtype: boolean
@return: boolean indicating whether a LD_LV dev_type was found or not
"""
if self.op.enabled_hypervisors is not None:
self.hv_list = self.op.enabled_hypervisors
+ if not self.hv_list:
+ raise errors.OpPrereqError("Enabled hypervisors list must contain at"
+ " least one member")
+ invalid_hvs = set(self.hv_list) - constants.HYPER_TYPES
+ if invalid_hvs:
+ raise errors.OpPrereqError("Enabled hypervisors contains invalid"
+ " entries: %s" %
+ utils.CommaJoin(invalid_hvs))
else:
self.hv_list = cluster.enabled_hypervisors
if self.op.candidate_pool_size is not None:
self.cluster.candidate_pool_size = self.op.candidate_pool_size
+ # we need to update the pool size here, otherwise the save will fail
+ _AdjustCandidatePool(self, [])
self.cfg.Update(self.cluster)
- # we want to update nodes after the cluster so that if any errors
- # happen, we have recorded and saved the cluster info
- if self.op.candidate_pool_size is not None:
- _AdjustCandidatePool(self)
-
def _RedistributeAncillaryFiles(lu, additional_nodes=None):
"""Distribute additional files which are part of the cluster configuration.
constants.SSH_KNOWN_HOSTS_FILE,
constants.RAPI_CERT_FILE,
constants.RAPI_USERS_FILE,
+ constants.HMAC_CLUSTER_KEY,
])
enabled_hypervisors = lu.cfg.GetClusterInfo().enabled_hypervisors
lu.LogWarning("Can't compute data for node %s/%s",
node, instance.disks[i].iv_name)
continue
- # we ignore the ldisk parameter
- perc_done, est_time, is_degraded, _ = mstat
- cumul_degraded = cumul_degraded or (is_degraded and perc_done is None)
- if perc_done is not None:
+
+ cumul_degraded = (cumul_degraded or
+ (mstat.is_degraded and mstat.sync_percent is None))
+ if mstat.sync_percent is not None:
done = False
- if est_time is not None:
- rem_time = "%d estimated seconds remaining" % est_time
- max_time = est_time
+ if mstat.estimated_time is not None:
+ rem_time = "%d estimated seconds remaining" % mstat.estimated_time
+ max_time = mstat.estimated_time
else:
rem_time = "no time estimate"
lu.proc.LogInfo("- device %s: %5.2f%% done, %s" %
- (instance.disks[i].iv_name, perc_done, rem_time))
+ (instance.disks[i].iv_name, mstat.sync_percent,
+ rem_time))
# if we're done but degraded, let's do a few small retries, to
# make sure we see a stable and not transient situation; therefore
"""
lu.cfg.SetDiskID(dev, node)
- if ldisk:
- idx = 6
- else:
- idx = 5
result = True
+
if on_primary or dev.AssembleOnSecondary():
rstats = lu.rpc.call_blockdev_find(node, dev)
msg = rstats.fail_msg
lu.LogWarning("Can't find disk on node %s", node)
result = False
else:
- result = result and (not rstats.payload[idx])
+ if ldisk:
+ result = result and rstats.payload.ldisk_status == constants.LDS_OKAY
+ else:
+ result = result and not rstats.payload.is_degraded
+
if dev.children:
for child in dev.children:
result = result and _CheckDiskConsistency(lu, child, node, on_primary)
"NODE_NAME": self.op.node_name,
}
all_nodes = self.cfg.GetNodeList()
- all_nodes.remove(self.op.node_name)
+ if self.op.node_name in all_nodes:
+ all_nodes.remove(self.op.node_name)
return env, all_nodes, all_nodes
def CheckPrereq(self):
- it does not have primary or secondary instances
- it's not the master
- Any errors are signalled by raising errors.OpPrereqError.
+ Any errors are signaled by raising errors.OpPrereqError.
"""
node = self.cfg.GetNodeInfo(self.cfg.ExpandNodeName(self.op.node_name))
logging.info("Stopping the node daemon and removing configs from node %s",
node.name)
+ # Promote nodes to master candidate as needed
+ _AdjustCandidatePool(self, exceptions=[node.name])
self.context.RemoveNode(node.name)
+ # Run post hooks on the node before it's removed
+ hm = self.proc.hmclass(self.rpc.call_hooks_runner, self)
+ try:
+ h_results = hm.RunPhase(constants.HOOKS_PHASE_POST, [node.name])
+ except:
+ self.LogWarning("Errors occurred running hooks on %s" % node.name)
+
result = self.rpc.call_node_leave_cluster(node.name)
msg = result.fail_msg
if msg:
self.LogWarning("Errors encountered on the remote node while leaving"
" the cluster: %s", msg)
- # Promote nodes to master candidate as needed
- _AdjustCandidatePool(self)
-
class LUQueryNodes(NoHooksLU):
"""Logical unit for querying nodes.
"""
_OP_REQP = ["output_fields", "names", "use_locking"]
REQ_BGL = False
+
+ _SIMPLE_FIELDS = ["name", "serial_no", "ctime", "mtime", "uuid",
+ "master_candidate", "offline", "drained"]
+
_FIELDS_DYNAMIC = utils.FieldSet(
"dtotal", "dfree",
"mtotal", "mnode", "mfree",
"ctotal", "cnodes", "csockets",
)
- _FIELDS_STATIC = utils.FieldSet(
- "name", "pinst_cnt", "sinst_cnt",
+ _FIELDS_STATIC = utils.FieldSet(*[
+ "pinst_cnt", "sinst_cnt",
"pinst_list", "sinst_list",
"pip", "sip", "tags",
- "serial_no",
- "master_candidate",
"master",
- "offline",
- "drained",
+ "role"] + _SIMPLE_FIELDS
)
def ExpandNames(self):
for node in nodelist:
node_output = []
for field in self.op.output_fields:
- if field == "name":
- val = node.name
+ if field in self._SIMPLE_FIELDS:
+ val = getattr(node, field)
elif field == "pinst_list":
val = list(node_to_primary[node.name])
elif field == "sinst_list":
val = node.secondary_ip
elif field == "tags":
val = list(node.GetTags())
- elif field == "serial_no":
- val = node.serial_no
- elif field == "master_candidate":
- val = node.master_candidate
elif field == "master":
val = node.name == master_node
- elif field == "offline":
- val = node.offline
- elif field == "drained":
- val = node.drained
elif self._FIELDS_DYNAMIC.Matches(field):
val = live_data[node.name].get(field, None)
+ elif field == "role":
+ if node.name == master_node:
+ val = "M"
+ elif node.master_candidate:
+ val = "C"
+ elif node.drained:
+ val = "D"
+ elif node.offline:
+ val = "O"
+ else:
+ val = "R"
else:
raise errors.ParameterError(field)
node_output.append(val)
return output
-class LUAddNode(LogicalUnit):
- """Logical unit for adding node to the cluster.
+class LUQueryNodeStorage(NoHooksLU):
+ """Logical unit for getting information on storage units on node(s).
"""
- HPATH = "node-add"
- HTYPE = constants.HTYPE_NODE
- _OP_REQP = ["node_name"]
+ _OP_REQP = ["nodes", "storage_type", "output_fields"]
+ REQ_BGL = False
+ _FIELDS_STATIC = utils.FieldSet("node")
- def BuildHooksEnv(self):
- """Build hooks env.
+ def ExpandNames(self):
+ storage_type = self.op.storage_type
- This will run on all nodes before, and on all nodes + the new node after.
+ if storage_type not in constants.VALID_STORAGE_FIELDS:
+ raise errors.OpPrereqError("Unknown storage type: %s" % storage_type)
- """
- env = {
- "OP_TARGET": self.op.node_name,
- "NODE_NAME": self.op.node_name,
- "NODE_PIP": self.op.primary_ip,
- "NODE_SIP": self.op.secondary_ip,
- }
- nodes_0 = self.cfg.GetNodeList()
- nodes_1 = nodes_0 + [self.op.node_name, ]
- return env, nodes_0, nodes_1
+ dynamic_fields = constants.VALID_STORAGE_FIELDS[storage_type]
+
+ _CheckOutputFields(static=self._FIELDS_STATIC,
+ dynamic=utils.FieldSet(*dynamic_fields),
+ selected=self.op.output_fields)
+
+ self.needed_locks = {}
+ self.share_locks[locking.LEVEL_NODE] = 1
+
+ if self.op.nodes:
+ self.needed_locks[locking.LEVEL_NODE] = \
+ _GetWantedNodes(self, self.op.nodes)
+ else:
+ self.needed_locks[locking.LEVEL_NODE] = locking.ALL_SET
def CheckPrereq(self):
"""Check prerequisites.
- This checks:
- - the new node is not already in the config
- - it is resolvable
- - its parameters (single/dual homed) matches the cluster
+ This checks that the fields required are valid output fields.
+
+ """
+ self.op.name = getattr(self.op, "name", None)
- Any errors are signalled by raising errors.OpPrereqError.
+ self.nodes = self.acquired_locks[locking.LEVEL_NODE]
+
+ def Exec(self, feedback_fn):
+ """Computes the list of nodes and their attributes.
"""
- node_name = self.op.node_name
- cfg = self.cfg
+ # Always get name to sort by
+ if constants.SF_NAME in self.op.output_fields:
+ fields = self.op.output_fields[:]
+ else:
+ fields = [constants.SF_NAME] + self.op.output_fields
- dns_data = utils.HostInfo(node_name)
+ # Never ask for node as it's only known to the LU
+ while "node" in fields:
+ fields.remove("node")
+
+ field_idx = dict([(name, idx) for (idx, name) in enumerate(fields)])
+ name_idx = field_idx[constants.SF_NAME]
+
+ st_args = _GetStorageTypeArgs(self.cfg, self.op.storage_type)
+ data = self.rpc.call_storage_list(self.nodes,
+ self.op.storage_type, st_args,
+ self.op.name, fields)
+
+ result = []
+
+ for node in utils.NiceSort(self.nodes):
+ nresult = data[node]
+ if nresult.offline:
+ continue
+
+ msg = nresult.fail_msg
+ if msg:
+ self.LogWarning("Can't get storage data from node %s: %s", node, msg)
+ continue
+
+ rows = dict([(row[name_idx], row) for row in nresult.payload])
+
+ for name in utils.NiceSort(rows.keys()):
+ row = rows[name]
+
+ out = []
+
+ for field in self.op.output_fields:
+ if field == "node":
+ val = node
+ elif field in field_idx:
+ val = row[field_idx[field]]
+ else:
+ raise errors.ParameterError(field)
+
+ out.append(val)
+
+ result.append(out)
+
+ return result
+
+
+class LUModifyNodeStorage(NoHooksLU):
+ """Logical unit for modifying a storage volume on a node.
+
+ """
+ _OP_REQP = ["node_name", "storage_type", "name", "changes"]
+ REQ_BGL = False
+
+ def CheckArguments(self):
+ node_name = self.cfg.ExpandNodeName(self.op.node_name)
+ if node_name is None:
+ raise errors.OpPrereqError("Invalid node name '%s'" % self.op.node_name)
+
+ self.op.node_name = node_name
+
+ storage_type = self.op.storage_type
+ if storage_type not in constants.VALID_STORAGE_FIELDS:
+ raise errors.OpPrereqError("Unknown storage type: %s" % storage_type)
+
+ def ExpandNames(self):
+ self.needed_locks = {
+ locking.LEVEL_NODE: self.op.node_name,
+ }
+
+ def CheckPrereq(self):
+ """Check prerequisites.
+
+ """
+ storage_type = self.op.storage_type
+
+ try:
+ modifiable = constants.MODIFIABLE_STORAGE_FIELDS[storage_type]
+ except KeyError:
+ raise errors.OpPrereqError("Storage units of type '%s' can not be"
+ " modified" % storage_type)
+
+ diff = set(self.op.changes.keys()) - modifiable
+ if diff:
+ raise errors.OpPrereqError("The following fields can not be modified for"
+ " storage units of type '%s': %r" %
+ (storage_type, list(diff)))
+
+ def Exec(self, feedback_fn):
+ """Computes the list of nodes and their attributes.
+
+ """
+ st_args = _GetStorageTypeArgs(self.cfg, self.op.storage_type)
+ result = self.rpc.call_storage_modify(self.op.node_name,
+ self.op.storage_type, st_args,
+ self.op.name, self.op.changes)
+ result.Raise("Failed to modify storage unit '%s' on %s" %
+ (self.op.name, self.op.node_name))
+
+
+class LUAddNode(LogicalUnit):
+ """Logical unit for adding node to the cluster.
+
+ """
+ HPATH = "node-add"
+ HTYPE = constants.HTYPE_NODE
+ _OP_REQP = ["node_name"]
+
+ def BuildHooksEnv(self):
+ """Build hooks env.
+
+ This will run on all nodes before, and on all nodes + the new node after.
+
+ """
+ env = {
+ "OP_TARGET": self.op.node_name,
+ "NODE_NAME": self.op.node_name,
+ "NODE_PIP": self.op.primary_ip,
+ "NODE_SIP": self.op.secondary_ip,
+ }
+ nodes_0 = self.cfg.GetNodeList()
+ nodes_1 = nodes_0 + [self.op.node_name, ]
+ return env, nodes_0, nodes_1
+
+ def CheckPrereq(self):
+ """Check prerequisites.
+
+ This checks:
+ - the new node is not already in the config
+ - it is resolvable
+ - its parameters (single/dual homed) matches the cluster
+
+ Any errors are signaled by raising errors.OpPrereqError.
+
+ """
+ node_name = self.op.node_name
+ cfg = self.cfg
+
+ dns_data = utils.HostInfo(node_name)
node = dns_data.name
primary_ip = self.op.primary_ip = dns_data.ip
raise errors.OpPrereqError("The master has a private ip but the"
" new node doesn't have one")
- # checks reachablity
+ # checks reachability
if not utils.TcpPing(primary_ip, constants.DEFAULT_NODED_PORT):
raise errors.OpPrereqError("Node not reachable by ping")
raise errors.OpPrereqError("Node secondary ip not reachable by TCP"
" based ping to noded port")
- cp_size = self.cfg.GetClusterInfo().candidate_pool_size
- mc_now, _ = self.cfg.GetMasterCandidateStats()
- master_candidate = mc_now < cp_size
+ if self.op.readd:
+ exceptions = [node]
+ else:
+ exceptions = []
+
+ self.master_candidate = _DecideSelfPromotion(self, exceptions=exceptions)
- self.new_node = objects.Node(name=node,
- primary_ip=primary_ip,
- secondary_ip=secondary_ip,
- master_candidate=master_candidate,
- offline=False, drained=False)
+ if self.op.readd:
+ self.new_node = self.cfg.GetNodeInfo(node)
+ assert self.new_node is not None, "Can't retrieve locked node %s" % node
+ else:
+ self.new_node = objects.Node(name=node,
+ primary_ip=primary_ip,
+ secondary_ip=secondary_ip,
+ master_candidate=self.master_candidate,
+ offline=False, drained=False)
def Exec(self, feedback_fn):
"""Adds the new node to the cluster.
new_node = self.new_node
node = new_node.name
+ # for re-adds, reset the offline/drained/master-candidate flags;
+ # we need to reset here, otherwise offline would prevent RPC calls
+ # later in the procedure; this also means that if the re-add
+ # fails, we are left with a non-offlined, broken node
+ if self.op.readd:
+ new_node.drained = new_node.offline = False
+ self.LogInfo("Readding a node, the offline/drained flags were reset")
+ # if we demote the node, we do cleanup later in the procedure
+ new_node.master_candidate = self.master_candidate
+
+ # notify the user about any possible mc promotion
+ if new_node.master_candidate:
+ self.LogInfo("Node will be a master candidate")
+
# check connectivity
result = self.rpc.call_version([node])[node]
result.Raise("Can't get version information from node %s" % node)
priv_key, pub_key]
for i in keyfiles:
- f = open(i, 'r')
- try:
- keyarray.append(f.read())
- finally:
- f.close()
+ keyarray.append(utils.ReadFile(i))
result = self.rpc.call_node_add(node, keyarray[0], keyarray[1],
keyarray[2],
node_verify_list = [self.cfg.GetMasterNode()]
node_verify_param = {
- 'nodelist': [node],
+ constants.NV_NODELIST: [node],
# TODO: do a node-net-test as well?
}
self.cfg.GetClusterName())
for verifier in node_verify_list:
result[verifier].Raise("Cannot communicate with node %s" % verifier)
- nl_payload = result[verifier].payload['nodelist']
+ nl_payload = result[verifier].payload[constants.NV_NODELIST]
if nl_payload:
for failed in nl_payload:
- feedback_fn("ssh/hostname verification failed %s -> %s" %
+ feedback_fn("ssh/hostname verification failed"
+ " (checking from %s): %s" %
(verifier, nl_payload[failed]))
raise errors.OpExecError("ssh/hostname verification failed.")
if self.op.readd:
_RedistributeAncillaryFiles(self)
self.context.ReaddNode(new_node)
+ # make sure we redistribute the config
+ self.cfg.Update(new_node)
+ # and make sure the new node will not have old files around
+ if not new_node.master_candidate:
+ result = self.rpc.call_node_demote_from_mc(new_node.name)
+ msg = result.fail_msg
+ if msg:
+ self.LogWarning("Node failed to demote itself from master"
+ " candidate status: %s" % msg)
else:
_RedistributeAncillaryFiles(self, additional_nodes=[node])
self.context.AddNode(new_node)
"""
node = self.node = self.cfg.GetNodeInfo(self.op.node_name)
- if ((self.op.master_candidate == False or self.op.offline == True or
- self.op.drained == True) and node.master_candidate):
- # we will demote the node from master_candidate
+ if (self.op.master_candidate is not None or
+ self.op.drained is not None or
+ self.op.offline is not None):
+ # we can't change the master's node flags
if self.op.node_name == self.cfg.GetMasterNode():
- raise errors.OpPrereqError("The master node has to be a"
- " master candidate, online and not drained")
+ raise errors.OpPrereqError("The master role can be changed"
+ " only via masterfailover")
+
+ # Boolean value that tells us whether we're offlining or draining the node
+ offline_or_drain = self.op.offline == True or self.op.drained == True
+ deoffline_or_drain = self.op.offline == False or self.op.drained == False
+
+ if (node.master_candidate and
+ (self.op.master_candidate == False or offline_or_drain)):
cp_size = self.cfg.GetClusterInfo().candidate_pool_size
- num_candidates, _ = self.cfg.GetMasterCandidateStats()
- if num_candidates <= cp_size:
+ mc_now, mc_should, mc_max = self.cfg.GetMasterCandidateStats()
+ if mc_now <= cp_size:
msg = ("Not enough master candidates (desired"
- " %d, new value will be %d)" % (cp_size, num_candidates-1))
- if self.op.force:
+ " %d, new value will be %d)" % (cp_size, mc_now-1))
+ # Only allow forcing the operation if it's an offline/drain operation,
+ # and we could not possibly promote more nodes.
+ # FIXME: this can still lead to issues if in any way another node which
+ # could be promoted appears in the meantime.
+ if self.op.force and offline_or_drain and mc_should == mc_max:
self.LogWarning(msg)
else:
raise errors.OpPrereqError(msg)
raise errors.OpPrereqError("Node '%s' is offline or drained, can't set"
" to master_candidate" % node.name)
+ # If we're being deofflined/drained, we'll MC ourself if needed
+ if (deoffline_or_drain and not offline_or_drain and not
+ self.op.master_candidate == True):
+ self.op.master_candidate = _DecideSelfPromotion(self)
+ if self.op.master_candidate:
+ self.LogInfo("Autopromoting node to master candidate")
+
return
def Exec(self, feedback_fn):
node.master_candidate = False
changed_mc = True
result.append(("master_candidate", "auto-demotion due to drain"))
+ rrc = self.rpc.call_node_demote_from_mc(node.name)
+ msg = rrc.fail_msg
+ if msg:
+ self.LogWarning("Node failed to demote itself: %s" % msg)
if node.offline:
node.offline = False
result.append(("offline", "clear offline status due to drain"))
def ExpandNames(self):
"""Locking for PowercycleNode.
- This is a last-resource option and shouldn't block on other
+ This is a last-resort option and shouldn't block on other
jobs. Therefore, we grab no locks.
"""
"software_version": constants.RELEASE_VERSION,
"protocol_version": constants.PROTOCOL_VERSION,
"config_version": constants.CONFIG_VERSION,
- "os_api_version": constants.OS_API_VERSION,
+ "os_api_version": max(constants.OS_API_VERSIONS),
"export_version": constants.EXPORT_VERSION,
"architecture": (platform.architecture()[0], platform.machine()),
"name": cluster.cluster_name,
"master": cluster.master_node,
- "default_hypervisor": cluster.default_hypervisor,
+ "default_hypervisor": cluster.enabled_hypervisors[0],
"enabled_hypervisors": cluster.enabled_hypervisors,
- "hvparams": dict([(hypervisor, cluster.hvparams[hypervisor])
- for hypervisor in cluster.enabled_hypervisors]),
+ "hvparams": dict([(hypervisor_name, cluster.hvparams[hypervisor_name])
+ for hypervisor_name in cluster.enabled_hypervisors]),
"beparams": cluster.beparams,
"nicparams": cluster.nicparams,
"candidate_pool_size": cluster.candidate_pool_size,
"master_netdev": cluster.master_netdev,
"volume_group_name": cluster.volume_group_name,
"file_storage_dir": cluster.file_storage_dir,
+ "ctime": cluster.ctime,
+ "mtime": cluster.mtime,
+ "uuid": cluster.uuid,
+ "tags": list(cluster.GetTags()),
}
return result
_OP_REQP = []
REQ_BGL = False
_FIELDS_DYNAMIC = utils.FieldSet()
- _FIELDS_STATIC = utils.FieldSet("cluster_name", "master_node", "drain_flag")
+ _FIELDS_STATIC = utils.FieldSet("cluster_name", "master_node", "drain_flag",
+ "watcher_pause")
def ExpandNames(self):
self.needed_locks = {}
entry = self.cfg.GetMasterNode()
elif field == "drain_flag":
entry = os.path.exists(constants.JOB_QUEUE_DRAIN_FILE)
+ elif field == "watcher_pause":
+ return utils.ReadWatcherPauseFile(constants.WATCHER_PAUSEFILE)
else:
raise errors.ParameterError(field)
values.append(entry)
assert self.instance is not None, \
"Cannot retrieve locked instance %s" % self.op.instance_name
_CheckNodeOnline(self, self.instance.primary_node)
+ if not hasattr(self.op, "ignore_size"):
+ self.op.ignore_size = False
def Exec(self, feedback_fn):
"""Activate the disks.
"""
- disks_ok, disks_info = _AssembleInstanceDisks(self, self.instance)
+ disks_ok, disks_info = \
+ _AssembleInstanceDisks(self, self.instance,
+ ignore_size=self.op.ignore_size)
if not disks_ok:
raise errors.OpExecError("Cannot activate block devices")
return disks_info
-def _AssembleInstanceDisks(lu, instance, ignore_secondaries=False):
+def _AssembleInstanceDisks(lu, instance, ignore_secondaries=False,
+ ignore_size=False):
"""Prepare the block devices for an instance.
This sets up the block devices on all nodes.
@type ignore_secondaries: boolean
@param ignore_secondaries: if true, errors on secondary nodes
won't result in an error return from the function
+ @type ignore_size: boolean
+ @param ignore_size: if true, the current known size of the disk
+ will not be used during the disk activation, useful for cases
+ when the size is wrong
@return: False if the operation failed, otherwise a list of
(host, instance_visible_name, node_visible_name)
with the mapping from node devices to instance devices
# 1st pass, assemble on all nodes in secondary mode
for inst_disk in instance.disks:
for node, node_disk in inst_disk.ComputeNodeTree(instance.primary_node):
+ if ignore_size:
+ node_disk = node_disk.Copy()
+ node_disk.UnsetSize()
lu.cfg.SetDiskID(node_disk, node)
result = lu.rpc.call_blockdev_assemble(node, node_disk, iname, False)
msg = result.fail_msg
for node, node_disk in inst_disk.ComputeNodeTree(instance.primary_node):
if node != instance.primary_node:
continue
+ if ignore_size:
+ node_disk = node_disk.Copy()
+ node_disk.UnsetSize()
lu.cfg.SetDiskID(node_disk, node)
result = lu.rpc.call_blockdev_assemble(node, node_disk, iname, True)
msg = result.fail_msg
"""Start the disks of an instance.
"""
- disks_ok, dummy = _AssembleInstanceDisks(lu, instance,
+ disks_ok, _ = _AssembleInstanceDisks(lu, instance,
ignore_secondaries=force)
if not disks_ok:
_ShutdownInstanceDisks(lu, instance)
_CheckNodeOnline(self, instance.primary_node)
bep = self.cfg.GetClusterInfo().FillBE(instance)
- # check bridges existance
+ # check bridges existence
_CheckInstanceBridgesExist(self, instance)
remote_info = self.rpc.call_instance_info(instance.primary_node,
_CheckNodeOnline(self, instance.primary_node)
- # check bridges existance
+ # check bridges existence
_CheckInstanceBridgesExist(self, instance)
def Exec(self, feedback_fn):
_ShutdownInstanceDisks(self, inst)
+class LURecreateInstanceDisks(LogicalUnit):
+ """Recreate an instance's missing disks.
+
+ """
+ HPATH = "instance-recreate-disks"
+ HTYPE = constants.HTYPE_INSTANCE
+ _OP_REQP = ["instance_name", "disks"]
+ REQ_BGL = False
+
+ def CheckArguments(self):
+ """Check the arguments.
+
+ """
+ if not isinstance(self.op.disks, list):
+ raise errors.OpPrereqError("Invalid disks parameter")
+ for item in self.op.disks:
+ if (not isinstance(item, int) or
+ item < 0):
+ raise errors.OpPrereqError("Invalid disk specification '%s'" %
+ str(item))
+
+ def ExpandNames(self):
+ self._ExpandAndLockInstance()
+
+ def BuildHooksEnv(self):
+ """Build hooks env.
+
+ This runs on master, primary and secondary nodes of the instance.
+
+ """
+ env = _BuildInstanceHookEnvByObject(self, self.instance)
+ nl = [self.cfg.GetMasterNode()] + list(self.instance.all_nodes)
+ return env, nl, nl
+
+ def CheckPrereq(self):
+ """Check prerequisites.
+
+ This checks that the instance is in the cluster and is not running.
+
+ """
+ instance = self.cfg.GetInstanceInfo(self.op.instance_name)
+ assert instance is not None, \
+ "Cannot retrieve locked instance %s" % self.op.instance_name
+ _CheckNodeOnline(self, instance.primary_node)
+
+ if instance.disk_template == constants.DT_DISKLESS:
+ raise errors.OpPrereqError("Instance '%s' has no disks" %
+ self.op.instance_name)
+ if instance.admin_up:
+ raise errors.OpPrereqError("Instance '%s' is marked to be up" %
+ self.op.instance_name)
+ remote_info = self.rpc.call_instance_info(instance.primary_node,
+ instance.name,
+ instance.hypervisor)
+ remote_info.Raise("Error checking node %s" % instance.primary_node,
+ prereq=True)
+ if remote_info.payload:
+ raise errors.OpPrereqError("Instance '%s' is running on the node %s" %
+ (self.op.instance_name,
+ instance.primary_node))
+
+ if not self.op.disks:
+ self.op.disks = range(len(instance.disks))
+ else:
+ for idx in self.op.disks:
+ if idx >= len(instance.disks):
+ raise errors.OpPrereqError("Invalid disk index passed '%s'" % idx)
+
+ self.instance = instance
+
+ def Exec(self, feedback_fn):
+ """Recreate the disks.
+
+ """
+ to_skip = []
+ for idx, disk in enumerate(self.instance.disks):
+ if idx not in self.op.disks: # disk idx has not been passed in
+ to_skip.append(idx)
+ continue
+
+ _CreateDisks(self, self.instance, to_skip=to_skip)
+
+
class LURenameInstance(LogicalUnit):
"""Rename an instance.
"""
_OP_REQP = ["output_fields", "names", "use_locking"]
REQ_BGL = False
+ _SIMPLE_FIELDS = ["name", "os", "network_port", "hypervisor",
+ "serial_no", "ctime", "mtime", "uuid"]
_FIELDS_STATIC = utils.FieldSet(*["name", "os", "pnode", "snodes",
"admin_state",
"disk_template", "ip", "mac", "bridge",
+ "nic_mode", "nic_link",
"sda_size", "sdb_size", "vcpus", "tags",
"network_port", "beparams",
r"(disk)\.(size)/([0-9]+)",
r"(disk)\.(sizes)", "disk_usage",
- r"(nic)\.(mac|ip|bridge)/([0-9]+)",
- r"(nic)\.(macs|ips|bridges)",
+ r"(nic)\.(mac|ip|mode|link)/([0-9]+)",
+ r"(nic)\.(bridge)/([0-9]+)",
+ r"(nic)\.(macs|ips|modes|links|bridges)",
r"(disk|nic)\.(count)",
- "serial_no", "hypervisor", "hvparams",] +
+ "hvparams",
+ ] + _SIMPLE_FIELDS +
["hv/%s" % name
for name in constants.HVS_PARAMETERS] +
["be/%s" % name
if result.offline:
# offline nodes will be in both lists
off_nodes.append(name)
- if result.failed or result.fail_msg:
+ if result.fail_msg:
bad_nodes.append(name)
else:
if result.payload:
HVPREFIX = "hv/"
BEPREFIX = "be/"
output = []
+ cluster = self.cfg.GetClusterInfo()
for instance in instance_list:
iout = []
- i_hv = self.cfg.GetClusterInfo().FillHV(instance)
- i_be = self.cfg.GetClusterInfo().FillBE(instance)
+ i_hv = cluster.FillHV(instance)
+ i_be = cluster.FillBE(instance)
+ i_nicp = [objects.FillDict(cluster.nicparams[constants.PP_DEFAULT],
+ nic.nicparams) for nic in instance.nics]
for field in self.op.output_fields:
st_match = self._FIELDS_STATIC.Matches(field)
- if field == "name":
- val = instance.name
- elif field == "os":
- val = instance.os
+ if field in self._SIMPLE_FIELDS:
+ val = getattr(instance, field)
elif field == "pnode":
val = instance.primary_node
elif field == "snodes":
val = live_data[instance.name].get("memory", "?")
else:
val = "-"
+ elif field == "vcpus":
+ val = i_be[constants.BE_VCPUS]
elif field == "disk_template":
val = instance.disk_template
elif field == "ip":
- val = instance.nics[0].ip
+ if instance.nics:
+ val = instance.nics[0].ip
+ else:
+ val = None
+ elif field == "nic_mode":
+ if instance.nics:
+ val = i_nicp[0][constants.NIC_MODE]
+ else:
+ val = None
+ elif field == "nic_link":
+ if instance.nics:
+ val = i_nicp[0][constants.NIC_LINK]
+ else:
+ val = None
elif field == "bridge":
- val = instance.nics[0].bridge
+ if (instance.nics and
+ i_nicp[0][constants.NIC_MODE] == constants.NIC_MODE_BRIDGED):
+ val = i_nicp[0][constants.NIC_LINK]
+ else:
+ val = None
elif field == "mac":
- val = instance.nics[0].mac
+ if instance.nics:
+ val = instance.nics[0].mac
+ else:
+ val = None
elif field == "sda_size" or field == "sdb_size":
idx = ord(field[2]) - ord('a')
try:
val = _ComputeDiskSize(instance.disk_template, disk_sizes)
elif field == "tags":
val = list(instance.GetTags())
- elif field == "serial_no":
- val = instance.serial_no
- elif field == "network_port":
- val = instance.network_port
- elif field == "hypervisor":
- val = instance.hypervisor
elif field == "hvparams":
val = i_hv
elif (field.startswith(HVPREFIX) and
val = [nic.mac for nic in instance.nics]
elif st_groups[1] == "ips":
val = [nic.ip for nic in instance.nics]
+ elif st_groups[1] == "modes":
+ val = [nicp[constants.NIC_MODE] for nicp in i_nicp]
+ elif st_groups[1] == "links":
+ val = [nicp[constants.NIC_LINK] for nicp in i_nicp]
elif st_groups[1] == "bridges":
- val = [nic.bridge for nic in instance.nics]
+ val = []
+ for nicp in i_nicp:
+ if nicp[constants.NIC_MODE] == constants.NIC_MODE_BRIDGED:
+ val.append(nicp[constants.NIC_LINK])
+ else:
+ val.append(None)
else:
# index-based item
nic_idx = int(st_groups[2])
val = instance.nics[nic_idx].mac
elif st_groups[1] == "ip":
val = instance.nics[nic_idx].ip
+ elif st_groups[1] == "mode":
+ val = i_nicp[nic_idx][constants.NIC_MODE]
+ elif st_groups[1] == "link":
+ val = i_nicp[nic_idx][constants.NIC_LINK]
elif st_groups[1] == "bridge":
- val = instance.nics[nic_idx].bridge
+ nic_mode = i_nicp[nic_idx][constants.NIC_MODE]
+ if nic_mode == constants.NIC_MODE_BRIDGED:
+ val = i_nicp[nic_idx][constants.NIC_LINK]
+ else:
+ val = None
else:
assert False, "Unhandled NIC parameter"
else:
- assert False, "Unhandled variable parameter"
+ assert False, ("Declared but unhandled variable parameter '%s'" %
+ field)
else:
- raise errors.ParameterError(field)
+ assert False, "Declared but unhandled parameter '%s'" % field
iout.append(val)
output.append(iout)
logging.info("Starting instance %s on node %s",
instance.name, target_node)
- disks_ok, dummy = _AssembleInstanceDisks(self, instance,
+ disks_ok, _ = _AssembleInstanceDisks(self, instance,
ignore_secondaries=True)
if not disks_ok:
_ShutdownInstanceDisks(self, instance)
def ExpandNames(self):
self._ExpandAndLockInstance()
+
self.needed_locks[locking.LEVEL_NODE] = []
self.recalculate_locks[locking.LEVEL_NODE] = constants.LOCKS_REPLACE
+ self._migrater = TLMigrateInstance(self, self.op.instance_name,
+ self.op.live, self.op.cleanup)
+ self.tasklets = [self._migrater]
+
def DeclareLocks(self, level):
if level == locking.LEVEL_NODE:
self._LockInstancesNodes()
This runs on master, primary and secondary nodes of the instance.
"""
- env = _BuildInstanceHookEnvByObject(self, self.instance)
+ instance = self._migrater.instance
+ env = _BuildInstanceHookEnvByObject(self, instance)
env["MIGRATE_LIVE"] = self.op.live
env["MIGRATE_CLEANUP"] = self.op.cleanup
- nl = [self.cfg.GetMasterNode()] + list(self.instance.secondary_nodes)
+ nl = [self.cfg.GetMasterNode()] + list(instance.secondary_nodes)
+ return env, nl, nl
+
+
+class LUMoveInstance(LogicalUnit):
+ """Move an instance by data-copying.
+
+ """
+ HPATH = "instance-move"
+ HTYPE = constants.HTYPE_INSTANCE
+ _OP_REQP = ["instance_name", "target_node"]
+ REQ_BGL = False
+
+ def ExpandNames(self):
+ self._ExpandAndLockInstance()
+ target_node = self.cfg.ExpandNodeName(self.op.target_node)
+ if target_node is None:
+ raise errors.OpPrereqError("Node '%s' not known" %
+ self.op.target_node)
+ self.op.target_node = target_node
+ self.needed_locks[locking.LEVEL_NODE] = [target_node]
+ self.recalculate_locks[locking.LEVEL_NODE] = constants.LOCKS_APPEND
+
+ def DeclareLocks(self, level):
+ if level == locking.LEVEL_NODE:
+ self._LockInstancesNodes(primary_only=True)
+
+ def BuildHooksEnv(self):
+ """Build hooks env.
+
+ This runs on master, primary and secondary nodes of the instance.
+
+ """
+ env = {
+ "TARGET_NODE": self.op.target_node,
+ }
+ env.update(_BuildInstanceHookEnvByObject(self, self.instance))
+ nl = [self.cfg.GetMasterNode()] + [self.instance.primary_node,
+ self.op.target_node]
return env, nl, nl
def CheckPrereq(self):
This checks that the instance is in the cluster.
"""
- instance = self.cfg.GetInstanceInfo(
- self.cfg.ExpandInstanceName(self.op.instance_name))
- if instance is None:
- raise errors.OpPrereqError("Instance '%s' not known" %
- self.op.instance_name)
+ self.instance = instance = self.cfg.GetInstanceInfo(self.op.instance_name)
+ assert self.instance is not None, \
+ "Cannot retrieve locked instance %s" % self.op.instance_name
- if instance.disk_template != constants.DT_DRBD8:
- raise errors.OpPrereqError("Instance's disk layout is not"
- " drbd8, cannot migrate.")
+ node = self.cfg.GetNodeInfo(self.op.target_node)
+ assert node is not None, \
+ "Cannot retrieve locked node %s" % self.op.target_node
- secondary_nodes = instance.secondary_nodes
- if not secondary_nodes:
- raise errors.ConfigurationError("No secondary node but using"
- " drbd8 disk template")
+ self.target_node = target_node = node.name
- i_be = self.cfg.GetClusterInfo().FillBE(instance)
+ if target_node == instance.primary_node:
+ raise errors.OpPrereqError("Instance %s is already on the node %s" %
+ (instance.name, target_node))
- target_node = secondary_nodes[0]
- # check memory requirements on the secondary node
- _CheckNodeFreeMemory(self, target_node, "migrating instance %s" %
- instance.name, i_be[constants.BE_MEMORY],
- instance.hypervisor)
+ bep = self.cfg.GetClusterInfo().FillBE(instance)
+
+ for idx, dsk in enumerate(instance.disks):
+ if dsk.dev_type not in (constants.LD_LV, constants.LD_FILE):
+ raise errors.OpPrereqError("Instance disk %d has a complex layout,"
+ " cannot copy")
+
+ _CheckNodeOnline(self, target_node)
+ _CheckNodeNotDrained(self, target_node)
+
+ if instance.admin_up:
+ # check memory requirements on the secondary node
+ _CheckNodeFreeMemory(self, target_node, "failing over instance %s" %
+ instance.name, bep[constants.BE_MEMORY],
+ instance.hypervisor)
+ else:
+ self.LogInfo("Not checking memory on the secondary node as"
+ " instance will not be started")
# check bridge existance
_CheckInstanceBridgesExist(self, instance, node=target_node)
- if not self.op.cleanup:
- _CheckNodeNotDrained(self, target_node)
- result = self.rpc.call_instance_migratable(instance.primary_node,
- instance)
- result.Raise("Can't migrate, please use failover", prereq=True)
+ def Exec(self, feedback_fn):
+ """Move an instance.
- self.instance = instance
+ The move is done by shutting it down on its present node, copying
+ the data over (slow) and starting it on the new node.
- def _WaitUntilSync(self):
- """Poll with custom rpc for disk sync.
+ """
+ instance = self.instance
+
+ source_node = instance.primary_node
+ target_node = self.target_node
+
+ self.LogInfo("Shutting down instance %s on source node %s",
+ instance.name, source_node)
+
+ result = self.rpc.call_instance_shutdown(source_node, instance)
+ msg = result.fail_msg
+ if msg:
+ if self.op.ignore_consistency:
+ self.proc.LogWarning("Could not shutdown instance %s on node %s."
+ " Proceeding anyway. Please make sure node"
+ " %s is down. Error details: %s",
+ instance.name, source_node, source_node, msg)
+ else:
+ raise errors.OpExecError("Could not shutdown instance %s on"
+ " node %s: %s" %
+ (instance.name, source_node, msg))
+
+ # create the target disks
+ try:
+ _CreateDisks(self, instance, target_node=target_node)
+ except errors.OpExecError:
+ self.LogWarning("Device creation failed, reverting...")
+ try:
+ _RemoveDisks(self, instance, target_node=target_node)
+ finally:
+ self.cfg.ReleaseDRBDMinors(instance.name)
+ raise
+
+ cluster_name = self.cfg.GetClusterInfo().cluster_name
+
+ errs = []
+ # activate, get path, copy the data over
+ for idx, disk in enumerate(instance.disks):
+ self.LogInfo("Copying data for disk %d", idx)
+ result = self.rpc.call_blockdev_assemble(target_node, disk,
+ instance.name, True)
+ if result.fail_msg:
+ self.LogWarning("Can't assemble newly created disk %d: %s",
+ idx, result.fail_msg)
+ errs.append(result.fail_msg)
+ break
+ dev_path = result.payload
+ result = self.rpc.call_blockdev_export(source_node, disk,
+ target_node, dev_path,
+ cluster_name)
+ if result.fail_msg:
+ self.LogWarning("Can't copy data over for disk %d: %s",
+ idx, result.fail_msg)
+ errs.append(result.fail_msg)
+ break
+
+ if errs:
+ self.LogWarning("Some disks failed to copy, aborting")
+ try:
+ _RemoveDisks(self, instance, target_node=target_node)
+ finally:
+ self.cfg.ReleaseDRBDMinors(instance.name)
+ raise errors.OpExecError("Errors during disk copy: %s" %
+ (",".join(errs),))
+
+ instance.primary_node = target_node
+ self.cfg.Update(instance)
+
+ self.LogInfo("Removing the disks on the original node")
+ _RemoveDisks(self, instance, target_node=source_node)
+
+ # Only start the instance if it's marked as up
+ if instance.admin_up:
+ self.LogInfo("Starting instance %s on node %s",
+ instance.name, target_node)
+
+ disks_ok, _ = _AssembleInstanceDisks(self, instance,
+ ignore_secondaries=True)
+ if not disks_ok:
+ _ShutdownInstanceDisks(self, instance)
+ raise errors.OpExecError("Can't activate the instance's disks")
+
+ result = self.rpc.call_instance_start(target_node, instance, None, None)
+ msg = result.fail_msg
+ if msg:
+ _ShutdownInstanceDisks(self, instance)
+ raise errors.OpExecError("Could not start instance %s on node %s: %s" %
+ (instance.name, target_node, msg))
+
+
+class LUMigrateNode(LogicalUnit):
+ """Migrate all instances from a node.
+
+ """
+ HPATH = "node-migrate"
+ HTYPE = constants.HTYPE_NODE
+ _OP_REQP = ["node_name", "live"]
+ REQ_BGL = False
+
+ def ExpandNames(self):
+ self.op.node_name = self.cfg.ExpandNodeName(self.op.node_name)
+ if self.op.node_name is None:
+ raise errors.OpPrereqError("Node '%s' not known" % self.op.node_name)
+
+ self.needed_locks = {
+ locking.LEVEL_NODE: [self.op.node_name],
+ }
+
+ self.recalculate_locks[locking.LEVEL_NODE] = constants.LOCKS_APPEND
+
+ # Create tasklets for migrating instances for all instances on this node
+ names = []
+ tasklets = []
+
+ for inst in _GetNodePrimaryInstances(self.cfg, self.op.node_name):
+ logging.debug("Migrating instance %s", inst.name)
+ names.append(inst.name)
+
+ tasklets.append(TLMigrateInstance(self, inst.name, self.op.live, False))
+
+ self.tasklets = tasklets
+
+ # Declare instance locks
+ self.needed_locks[locking.LEVEL_INSTANCE] = names
+
+ def DeclareLocks(self, level):
+ if level == locking.LEVEL_NODE:
+ self._LockInstancesNodes()
+
+ def BuildHooksEnv(self):
+ """Build hooks env.
+
+ This runs on the master, the primary and all the secondaries.
+
+ """
+ env = {
+ "NODE_NAME": self.op.node_name,
+ }
+
+ nl = [self.cfg.GetMasterNode()]
+
+ return (env, nl, nl)
+
+
+class TLMigrateInstance(Tasklet):
+ def __init__(self, lu, instance_name, live, cleanup):
+ """Initializes this class.
+
+ """
+ Tasklet.__init__(self, lu)
+
+ # Parameters
+ self.instance_name = instance_name
+ self.live = live
+ self.cleanup = cleanup
+
+ def CheckPrereq(self):
+ """Check prerequisites.
+
+ This checks that the instance is in the cluster.
+
+ """
+ instance = self.cfg.GetInstanceInfo(
+ self.cfg.ExpandInstanceName(self.instance_name))
+ if instance is None:
+ raise errors.OpPrereqError("Instance '%s' not known" %
+ self.instance_name)
+
+ if instance.disk_template != constants.DT_DRBD8:
+ raise errors.OpPrereqError("Instance's disk layout is not"
+ " drbd8, cannot migrate.")
+
+ secondary_nodes = instance.secondary_nodes
+ if not secondary_nodes:
+ raise errors.ConfigurationError("No secondary node but using"
+ " drbd8 disk template")
+
+ i_be = self.cfg.GetClusterInfo().FillBE(instance)
+
+ target_node = secondary_nodes[0]
+ # check memory requirements on the secondary node
+ _CheckNodeFreeMemory(self, target_node, "migrating instance %s" %
+ instance.name, i_be[constants.BE_MEMORY],
+ instance.hypervisor)
+
+ # check bridge existance
+ _CheckInstanceBridgesExist(self, instance, node=target_node)
+
+ if not self.cleanup:
+ _CheckNodeNotDrained(self, target_node)
+ result = self.rpc.call_instance_migratable(instance.primary_node,
+ instance)
+ result.Raise("Can't migrate, please use failover", prereq=True)
+
+ self.instance = instance
+
+ def _WaitUntilSync(self):
+ """Poll with custom rpc for disk sync.
This uses our own step-based rpc call.
self._GoReconnect(False)
self._WaitUntilSync()
except errors.OpExecError, err:
- self.LogWarning("Migration failed and I can't reconnect the"
- " drives: error '%s'\n"
- "Please look and recover the instance status" %
- str(err))
+ self.lu.LogWarning("Migration failed and I can't reconnect the"
+ " drives: error '%s'\n"
+ "Please look and recover the instance status" %
+ str(err))
def _AbortMigration(self):
"""Call the hypervisor code to abort a started migration.
time.sleep(10)
result = self.rpc.call_instance_migrate(source_node, instance,
self.nodes_ip[target_node],
- self.op.live)
+ self.live)
msg = result.fail_msg
if msg:
logging.error("Instance migration failed, trying to revert"
"""Perform the migration.
"""
+ feedback_fn("Migrating instance %s" % self.instance.name)
+
self.feedback_fn = feedback_fn
self.source_node = self.instance.primary_node
self.source_node: self.cfg.GetNodeInfo(self.source_node).secondary_ip,
self.target_node: self.cfg.GetNodeInfo(self.target_node).secondary_ip,
}
- if self.op.cleanup:
+
+ if self.cleanup:
return self._ExecCleanup()
else:
return self._ExecMigration()
if len(secondary_nodes) != 0:
raise errors.ProgrammerError("Wrong template configuration")
- names = _GenerateUniqueNames(lu, [".disk%d" % i
+ names = _GenerateUniqueNames(lu, [".disk%d" % (base_index + i)
for i in range(disk_count)])
for idx, disk in enumerate(disk_info):
disk_index = idx + base_index
[primary_node, remote_node] * len(disk_info), instance_name)
names = []
- for lv_prefix in _GenerateUniqueNames(lu, [".disk%d" % i
+ for lv_prefix in _GenerateUniqueNames(lu, [".disk%d" % (base_index + i)
for i in range(disk_count)]):
names.append(lv_prefix + "_data")
names.append(lv_prefix + "_meta")
return "originstname+%s" % instance.name
-def _CreateDisks(lu, instance):
+def _CreateDisks(lu, instance, to_skip=None, target_node=None):
"""Create all disks for an instance.
This abstracts away some work from AddInstance.
@param lu: the logical unit on whose behalf we execute
@type instance: L{objects.Instance}
@param instance: the instance whose disks we should create
+ @type to_skip: list
+ @param to_skip: list of indices to skip
+ @type target_node: string
+ @param target_node: if passed, overrides the target node for creation
@rtype: boolean
@return: the success of the creation
"""
info = _GetInstanceInfoText(instance)
- pnode = instance.primary_node
+ if target_node is None:
+ pnode = instance.primary_node
+ all_nodes = instance.all_nodes
+ else:
+ pnode = target_node
+ all_nodes = [pnode]
if instance.disk_template == constants.DT_FILE:
file_storage_dir = os.path.dirname(instance.disks[0].logical_id[1])
result = lu.rpc.call_file_storage_dir_create(pnode, file_storage_dir)
result.Raise("Failed to create directory '%s' on"
- " node %s: %s" % (file_storage_dir, pnode))
+ " node %s" % (file_storage_dir, pnode))
# Note: this needs to be kept in sync with adding of disks in
# LUSetInstanceParams
- for device in instance.disks:
+ for idx, device in enumerate(instance.disks):
+ if to_skip and idx in to_skip:
+ continue
logging.info("Creating volume %s for instance %s",
device.iv_name, instance.name)
#HARDCODE
- for node in instance.all_nodes:
+ for node in all_nodes:
f_create = node == pnode
_CreateBlockDev(lu, node, instance, device, f_create, info, f_create)
-def _RemoveDisks(lu, instance):
+def _RemoveDisks(lu, instance, target_node=None):
"""Remove all disks for an instance.
This abstracts away some work from `AddInstance()` and
@param lu: the logical unit on whose behalf we execute
@type instance: L{objects.Instance}
@param instance: the instance whose disks we should remove
+ @type target_node: string
+ @param target_node: used to override the node on which to remove the disks
@rtype: boolean
@return: the success of the removal
all_result = True
for device in instance.disks:
- for node, disk in device.ComputeNodeTree(instance.primary_node):
+ if target_node:
+ edata = [(target_node, device)]
+ else:
+ edata = device.ComputeNodeTree(instance.primary_node)
+ for node, disk in edata:
lu.cfg.SetDiskID(disk, node)
msg = lu.rpc.call_blockdev_remove(node, disk).fail_msg
if msg:
if instance.disk_template == constants.DT_FILE:
file_storage_dir = os.path.dirname(instance.disks[0].logical_id[1])
- result = lu.rpc.call_file_storage_dir_remove(instance.primary_node,
- file_storage_dir)
- msg = result.fail_msg
- if msg:
+ if target_node:
+ tgt = target_node
+ else:
+ tgt = instance.primary_node
+ result = lu.rpc.call_file_storage_dir_remove(tgt, file_storage_dir)
+ if result.fail_msg:
lu.LogWarning("Could not remove directory '%s' on node %s: %s",
- file_storage_dir, instance.primary_node, msg)
+ file_storage_dir, instance.primary_node, result.fail_msg)
all_result = False
return all_result
if not utils.IsValidMac(mac.lower()):
raise errors.OpPrereqError("Invalid MAC address specified: %s" %
mac)
+ else:
+ # or validate/reserve the current one
+ if self.cfg.IsMacInUse(mac):
+ raise errors.OpPrereqError("MAC address %s already in use"
+ " in cluster" % mac)
+
# bridge verification
bridge = nic.get("bridge", None)
link = nic.get("link", None)
if bridge and link:
- raise errors.OpPrereqError("Cannot pass 'bridge' and 'link' at the same time")
+ raise errors.OpPrereqError("Cannot pass 'bridge' and 'link'"
+ " at the same time")
elif bridge and nic_mode == constants.NIC_MODE_ROUTED:
raise errors.OpPrereqError("Cannot pass 'bridge' on a routed nic")
elif bridge:
"""
nics = [n.ToDict() for n in self.nics]
- ial = IAllocator(self,
+ ial = IAllocator(self.cfg, self.rpc,
mode=constants.IALLOCATOR_MODE_ALLOC,
name=self.op.instance_name,
disk_template=self.op.disk_template,
os_type=self.op.os_type,
memory=self.be_full[constants.BE_MEMORY],
vcpus=self.be_full[constants.BE_VCPUS],
- nics=_PreBuildNICHooksList(self, self.nics),
+ nics=_NICListToTuple(self, self.nics),
disk_template=self.op.disk_template,
disks=[(d["size"], d["mode"]) for d in self.disks],
bep=self.be_full,
hvp=self.hv_full,
- hypervisor=self.op.hypervisor,
+ hypervisor_name=self.op.hypervisor,
))
nl = ([self.cfg.GetMasterNode(), self.op.pnode] +
self.be_full[constants.BE_MEMORY],
self.op.hypervisor)
+ self.dry_run_result = list(nodenames)
+
def Exec(self, feedback_fn):
"""Create and add the instance to the cluster.
result = self.rpc.call_instance_start(pnode_name, iobj, None, None)
result.Raise("Could not start instance")
+ return list(iobj.all_nodes)
+
class LUConnectConsole(NoHooksLU):
"""Connect to an instance's console.
if not hasattr(self.op, "iallocator"):
self.op.iallocator = None
- # check for valid parameter combination
- cnt = [self.op.remote_node, self.op.iallocator].count(None)
- if self.op.mode == constants.REPLACE_DISK_CHG:
- if cnt == 2:
- raise errors.OpPrereqError("When changing the secondary either an"
- " iallocator script must be used or the"
- " new node given")
- elif cnt == 0:
- raise errors.OpPrereqError("Give either the iallocator or the new"
- " secondary, not both")
- else: # not replacing the secondary
- if cnt != 2:
- raise errors.OpPrereqError("The iallocator and new node options can"
- " be used only when changing the"
- " secondary node")
+ TLReplaceDisks.CheckArguments(self.op.mode, self.op.remote_node,
+ self.op.iallocator)
def ExpandNames(self):
self._ExpandAndLockInstance()
if self.op.iallocator is not None:
self.needed_locks[locking.LEVEL_NODE] = locking.ALL_SET
+
elif self.op.remote_node is not None:
remote_node = self.cfg.ExpandNodeName(self.op.remote_node)
if remote_node is None:
raise errors.OpPrereqError("Node '%s' not known" %
self.op.remote_node)
+
self.op.remote_node = remote_node
+
# Warning: do not remove the locking of the new secondary here
# unless DRBD8.AddChildren is changed to work in parallel;
# currently it doesn't since parallel invocations of
# FindUnusedMinor will conflict
self.needed_locks[locking.LEVEL_NODE] = [remote_node]
self.recalculate_locks[locking.LEVEL_NODE] = constants.LOCKS_APPEND
+
else:
self.needed_locks[locking.LEVEL_NODE] = []
self.recalculate_locks[locking.LEVEL_NODE] = constants.LOCKS_REPLACE
+ self.replacer = TLReplaceDisks(self, self.op.instance_name, self.op.mode,
+ self.op.iallocator, self.op.remote_node,
+ self.op.disks)
+
+ self.tasklets = [self.replacer]
+
def DeclareLocks(self, level):
# If we're not already locking all nodes in the set we have to declare the
# instance's primary/secondary nodes.
self.needed_locks[locking.LEVEL_NODE] is not locking.ALL_SET):
self._LockInstancesNodes()
- def _RunAllocator(self):
- """Compute a new secondary node using an IAllocator.
-
- """
- ial = IAllocator(self,
- mode=constants.IALLOCATOR_MODE_RELOC,
- name=self.op.instance_name,
- relocate_from=[self.sec_node])
-
- ial.Run(self.op.iallocator)
-
- if not ial.success:
- raise errors.OpPrereqError("Can't compute nodes using"
- " iallocator '%s': %s" % (self.op.iallocator,
- ial.info))
- if len(ial.nodes) != ial.required_nodes:
- raise errors.OpPrereqError("iallocator '%s' returned invalid number"
- " of nodes (%s), required %s" %
- (len(ial.nodes), ial.required_nodes))
- self.op.remote_node = ial.nodes[0]
- self.LogInfo("Selected new secondary for the instance: %s",
- self.op.remote_node)
-
def BuildHooksEnv(self):
"""Build hooks env.
This runs on the master, the primary and all the secondaries.
"""
+ instance = self.replacer.instance
env = {
"MODE": self.op.mode,
"NEW_SECONDARY": self.op.remote_node,
- "OLD_SECONDARY": self.instance.secondary_nodes[0],
+ "OLD_SECONDARY": instance.secondary_nodes[0],
}
- env.update(_BuildInstanceHookEnvByObject(self, self.instance))
+ env.update(_BuildInstanceHookEnvByObject(self, instance))
nl = [
self.cfg.GetMasterNode(),
- self.instance.primary_node,
+ instance.primary_node,
]
if self.op.remote_node is not None:
nl.append(self.op.remote_node)
return env, nl, nl
+
+class LUEvacuateNode(LogicalUnit):
+ """Relocate the secondary instances from a node.
+
+ """
+ HPATH = "node-evacuate"
+ HTYPE = constants.HTYPE_NODE
+ _OP_REQP = ["node_name"]
+ REQ_BGL = False
+
+ def CheckArguments(self):
+ if not hasattr(self.op, "remote_node"):
+ self.op.remote_node = None
+ if not hasattr(self.op, "iallocator"):
+ self.op.iallocator = None
+
+ TLReplaceDisks.CheckArguments(constants.REPLACE_DISK_CHG,
+ self.op.remote_node,
+ self.op.iallocator)
+
+ def ExpandNames(self):
+ self.op.node_name = self.cfg.ExpandNodeName(self.op.node_name)
+ if self.op.node_name is None:
+ raise errors.OpPrereqError("Node '%s' not known" % self.op.node_name)
+
+ self.needed_locks = {}
+
+ # Declare node locks
+ if self.op.iallocator is not None:
+ self.needed_locks[locking.LEVEL_NODE] = locking.ALL_SET
+
+ elif self.op.remote_node is not None:
+ remote_node = self.cfg.ExpandNodeName(self.op.remote_node)
+ if remote_node is None:
+ raise errors.OpPrereqError("Node '%s' not known" %
+ self.op.remote_node)
+
+ self.op.remote_node = remote_node
+
+ # Warning: do not remove the locking of the new secondary here
+ # unless DRBD8.AddChildren is changed to work in parallel;
+ # currently it doesn't since parallel invocations of
+ # FindUnusedMinor will conflict
+ self.needed_locks[locking.LEVEL_NODE] = [remote_node]
+ self.recalculate_locks[locking.LEVEL_NODE] = constants.LOCKS_APPEND
+
+ else:
+ raise errors.OpPrereqError("Invalid parameters")
+
+ # Create tasklets for replacing disks for all secondary instances on this
+ # node
+ names = []
+ tasklets = []
+
+ for inst in _GetNodeSecondaryInstances(self.cfg, self.op.node_name):
+ logging.debug("Replacing disks for instance %s", inst.name)
+ names.append(inst.name)
+
+ replacer = TLReplaceDisks(self, inst.name, constants.REPLACE_DISK_CHG,
+ self.op.iallocator, self.op.remote_node, [])
+ tasklets.append(replacer)
+
+ self.tasklets = tasklets
+ self.instance_names = names
+
+ # Declare instance locks
+ self.needed_locks[locking.LEVEL_INSTANCE] = self.instance_names
+
+ def DeclareLocks(self, level):
+ # If we're not already locking all nodes in the set we have to declare the
+ # instance's primary/secondary nodes.
+ if (level == locking.LEVEL_NODE and
+ self.needed_locks[locking.LEVEL_NODE] is not locking.ALL_SET):
+ self._LockInstancesNodes()
+
+ def BuildHooksEnv(self):
+ """Build hooks env.
+
+ This runs on the master, the primary and all the secondaries.
+
+ """
+ env = {
+ "NODE_NAME": self.op.node_name,
+ }
+
+ nl = [self.cfg.GetMasterNode()]
+
+ if self.op.remote_node is not None:
+ env["NEW_SECONDARY"] = self.op.remote_node
+ nl.append(self.op.remote_node)
+
+ return (env, nl, nl)
+
+
+class TLReplaceDisks(Tasklet):
+ """Replaces disks for an instance.
+
+ Note: Locking is not within the scope of this class.
+
+ """
+ def __init__(self, lu, instance_name, mode, iallocator_name, remote_node,
+ disks):
+ """Initializes this class.
+
+ """
+ Tasklet.__init__(self, lu)
+
+ # Parameters
+ self.instance_name = instance_name
+ self.mode = mode
+ self.iallocator_name = iallocator_name
+ self.remote_node = remote_node
+ self.disks = disks
+
+ # Runtime data
+ self.instance = None
+ self.new_node = None
+ self.target_node = None
+ self.other_node = None
+ self.remote_node_info = None
+ self.node_secondary_ip = None
+
+ @staticmethod
+ def CheckArguments(mode, remote_node, iallocator):
+ """Helper function for users of this class.
+
+ """
+ # check for valid parameter combination
+ if mode == constants.REPLACE_DISK_CHG:
+ if remote_node is None and iallocator is None:
+ raise errors.OpPrereqError("When changing the secondary either an"
+ " iallocator script must be used or the"
+ " new node given")
+
+ if remote_node is not None and iallocator is not None:
+ raise errors.OpPrereqError("Give either the iallocator or the new"
+ " secondary, not both")
+
+ elif remote_node is not None or iallocator is not None:
+ # Not replacing the secondary
+ raise errors.OpPrereqError("The iallocator and new node options can"
+ " only be used when changing the"
+ " secondary node")
+
+ @staticmethod
+ def _RunAllocator(lu, iallocator_name, instance_name, relocate_from):
+ """Compute a new secondary node using an IAllocator.
+
+ """
+ ial = IAllocator(lu.cfg, lu.rpc,
+ mode=constants.IALLOCATOR_MODE_RELOC,
+ name=instance_name,
+ relocate_from=relocate_from)
+
+ ial.Run(iallocator_name)
+
+ if not ial.success:
+ raise errors.OpPrereqError("Can't compute nodes using iallocator '%s':"
+ " %s" % (iallocator_name, ial.info))
+
+ if len(ial.nodes) != ial.required_nodes:
+ raise errors.OpPrereqError("iallocator '%s' returned invalid number"
+ " of nodes (%s), required %s" %
+ (len(ial.nodes), ial.required_nodes))
+
+ remote_node_name = ial.nodes[0]
+
+ lu.LogInfo("Selected new secondary for instance '%s': %s",
+ instance_name, remote_node_name)
+
+ return remote_node_name
+
+ def _FindFaultyDisks(self, node_name):
+ return _FindFaultyInstanceDisks(self.cfg, self.rpc, self.instance,
+ node_name, True)
+
def CheckPrereq(self):
"""Check prerequisites.
This checks that the instance is in the cluster.
"""
- instance = self.cfg.GetInstanceInfo(self.op.instance_name)
- assert instance is not None, \
- "Cannot retrieve locked instance %s" % self.op.instance_name
- self.instance = instance
+ self.instance = self.cfg.GetInstanceInfo(self.instance_name)
+ assert self.instance is not None, \
+ "Cannot retrieve locked instance %s" % self.instance_name
- if instance.disk_template != constants.DT_DRBD8:
+ if self.instance.disk_template != constants.DT_DRBD8:
raise errors.OpPrereqError("Can only run replace disks for DRBD8-based"
" instances")
- if len(instance.secondary_nodes) != 1:
+ if len(self.instance.secondary_nodes) != 1:
raise errors.OpPrereqError("The instance has a strange layout,"
" expected one secondary but found %d" %
- len(instance.secondary_nodes))
+ len(self.instance.secondary_nodes))
- self.sec_node = instance.secondary_nodes[0]
+ secondary_node = self.instance.secondary_nodes[0]
- if self.op.iallocator is not None:
- self._RunAllocator()
+ if self.iallocator_name is None:
+ remote_node = self.remote_node
+ else:
+ remote_node = self._RunAllocator(self.lu, self.iallocator_name,
+ self.instance.name, secondary_node)
- remote_node = self.op.remote_node
if remote_node is not None:
self.remote_node_info = self.cfg.GetNodeInfo(remote_node)
assert self.remote_node_info is not None, \
"Cannot retrieve locked node %s" % remote_node
else:
self.remote_node_info = None
- if remote_node == instance.primary_node:
+
+ if remote_node == self.instance.primary_node:
raise errors.OpPrereqError("The specified node is the primary node of"
" the instance.")
- elif remote_node == self.sec_node:
+
+ if remote_node == secondary_node:
raise errors.OpPrereqError("The specified node is already the"
" secondary node of the instance.")
- if self.op.mode == constants.REPLACE_DISK_PRI:
- n1 = self.tgt_node = instance.primary_node
- n2 = self.oth_node = self.sec_node
- elif self.op.mode == constants.REPLACE_DISK_SEC:
- n1 = self.tgt_node = self.sec_node
- n2 = self.oth_node = instance.primary_node
- elif self.op.mode == constants.REPLACE_DISK_CHG:
- n1 = self.new_node = remote_node
- n2 = self.oth_node = instance.primary_node
- self.tgt_node = self.sec_node
- _CheckNodeNotDrained(self, remote_node)
+ if self.disks and self.mode in (constants.REPLACE_DISK_AUTO,
+ constants.REPLACE_DISK_CHG):
+ raise errors.OpPrereqError("Cannot specify disks to be replaced")
+
+ if self.mode == constants.REPLACE_DISK_AUTO:
+ faulty_primary = self._FindFaultyDisks(self.instance.primary_node)
+ faulty_secondary = self._FindFaultyDisks(secondary_node)
+
+ if faulty_primary and faulty_secondary:
+ raise errors.OpPrereqError("Instance %s has faulty disks on more than"
+ " one node and can not be repaired"
+ " automatically" % self.instance_name)
+
+ if faulty_primary:
+ self.disks = faulty_primary
+ self.target_node = self.instance.primary_node
+ self.other_node = secondary_node
+ check_nodes = [self.target_node, self.other_node]
+ elif faulty_secondary:
+ self.disks = faulty_secondary
+ self.target_node = secondary_node
+ self.other_node = self.instance.primary_node
+ check_nodes = [self.target_node, self.other_node]
+ else:
+ self.disks = []
+ check_nodes = []
+
else:
- raise errors.ProgrammerError("Unhandled disk replace mode")
+ # Non-automatic modes
+ if self.mode == constants.REPLACE_DISK_PRI:
+ self.target_node = self.instance.primary_node
+ self.other_node = secondary_node
+ check_nodes = [self.target_node, self.other_node]
- _CheckNodeOnline(self, n1)
- _CheckNodeOnline(self, n2)
+ elif self.mode == constants.REPLACE_DISK_SEC:
+ self.target_node = secondary_node
+ self.other_node = self.instance.primary_node
+ check_nodes = [self.target_node, self.other_node]
- if not self.op.disks:
- self.op.disks = range(len(instance.disks))
+ elif self.mode == constants.REPLACE_DISK_CHG:
+ self.new_node = remote_node
+ self.other_node = self.instance.primary_node
+ self.target_node = secondary_node
+ check_nodes = [self.new_node, self.other_node]
- for disk_idx in self.op.disks:
- instance.FindDisk(disk_idx)
+ _CheckNodeNotDrained(self.lu, remote_node)
- def _ExecD8DiskOnly(self, feedback_fn):
- """Replace a disk on the primary or secondary for dbrd8.
+ else:
+ raise errors.ProgrammerError("Unhandled disk replace mode (%s)" %
+ self.mode)
- The algorithm for replace is quite complicated:
+ # If not specified all disks should be replaced
+ if not self.disks:
+ self.disks = range(len(self.instance.disks))
- 1. for each disk to be replaced:
+ for node in check_nodes:
+ _CheckNodeOnline(self.lu, node)
- 1. create new LVs on the target node with unique names
- 1. detach old LVs from the drbd device
- 1. rename old LVs to name_replaced.<time_t>
- 1. rename new LVs to old LVs
- 1. attach the new LVs (with the old names now) to the drbd device
+ # Check whether disks are valid
+ for disk_idx in self.disks:
+ self.instance.FindDisk(disk_idx)
- 1. wait for sync across all devices
+ # Get secondary node IP addresses
+ node_2nd_ip = {}
- 1. for each modified disk:
+ for node_name in [self.target_node, self.other_node, self.new_node]:
+ if node_name is not None:
+ node_2nd_ip[node_name] = self.cfg.GetNodeInfo(node_name).secondary_ip
- 1. remove old LVs (which have the name name_replaces.<time_t>)
+ self.node_secondary_ip = node_2nd_ip
- Failures are not very well handled.
+ def Exec(self, feedback_fn):
+ """Execute disk replacement.
+
+ This dispatches the disk replacement to the appropriate handler.
"""
- steps_total = 6
- warning, info = (self.proc.LogWarning, self.proc.LogInfo)
- instance = self.instance
- iv_names = {}
+ if not self.disks:
+ feedback_fn("No disks need replacement")
+ return
+
+ feedback_fn("Replacing disk(s) %s for %s" %
+ (", ".join([str(i) for i in self.disks]), self.instance.name))
+
+ activate_disks = (not self.instance.admin_up)
+
+ # Activate the instance disks if we're replacing them on a down instance
+ if activate_disks:
+ _StartInstanceDisks(self.lu, self.instance, True)
+
+ try:
+ # Should we replace the secondary node?
+ if self.new_node is not None:
+ return self._ExecDrbd8Secondary()
+ else:
+ return self._ExecDrbd8DiskOnly()
+
+ finally:
+ # Deactivate the instance disks if we're replacing them on a down instance
+ if activate_disks:
+ _SafeShutdownInstanceDisks(self.lu, self.instance)
+
+ def _CheckVolumeGroup(self, nodes):
+ self.lu.LogInfo("Checking volume groups")
+
vgname = self.cfg.GetVGName()
- # start of work
- cfg = self.cfg
- tgt_node = self.tgt_node
- oth_node = self.oth_node
- # Step: check device activation
- self.proc.LogStep(1, steps_total, "check device existence")
- info("checking volume groups")
- my_vg = cfg.GetVGName()
- results = self.rpc.call_vg_list([oth_node, tgt_node])
+ # Make sure volume group exists on all involved nodes
+ results = self.rpc.call_vg_list(nodes)
if not results:
raise errors.OpExecError("Can't list volume groups on the nodes")
- for node in oth_node, tgt_node:
+
+ for node in nodes:
res = results[node]
res.Raise("Error checking node %s" % node)
- if my_vg not in res.payload:
- raise errors.OpExecError("Volume group '%s' not found on %s" %
- (my_vg, node))
- for idx, dev in enumerate(instance.disks):
- if idx not in self.op.disks:
+ if vgname not in res.payload:
+ raise errors.OpExecError("Volume group '%s' not found on node %s" %
+ (vgname, node))
+
+ def _CheckDisksExistence(self, nodes):
+ # Check disk existence
+ for idx, dev in enumerate(self.instance.disks):
+ if idx not in self.disks:
continue
- for node in tgt_node, oth_node:
- info("checking disk/%d on %s" % (idx, node))
- cfg.SetDiskID(dev, node)
+
+ for node in nodes:
+ self.lu.LogInfo("Checking disk/%d on %s" % (idx, node))
+ self.cfg.SetDiskID(dev, node)
+
result = self.rpc.call_blockdev_find(node, dev)
+
msg = result.fail_msg
- if not msg and not result.payload:
- msg = "disk not found"
- if msg:
+ if msg or not result.payload:
+ if not msg:
+ msg = "disk not found"
raise errors.OpExecError("Can't find disk/%d on node %s: %s" %
(idx, node, msg))
- # Step: check other node consistency
- self.proc.LogStep(2, steps_total, "check peer consistency")
- for idx, dev in enumerate(instance.disks):
- if idx not in self.op.disks:
+ def _CheckDisksConsistency(self, node_name, on_primary, ldisk):
+ for idx, dev in enumerate(self.instance.disks):
+ if idx not in self.disks:
continue
- info("checking disk/%d consistency on %s" % (idx, oth_node))
- if not _CheckDiskConsistency(self, dev, oth_node,
- oth_node==instance.primary_node):
- raise errors.OpExecError("Peer node (%s) has degraded storage, unsafe"
- " to replace disks on this node (%s)" %
- (oth_node, tgt_node))
- # Step: create new storage
- self.proc.LogStep(3, steps_total, "allocate new storage")
- for idx, dev in enumerate(instance.disks):
- if idx not in self.op.disks:
+ self.lu.LogInfo("Checking disk/%d consistency on node %s" %
+ (idx, node_name))
+
+ if not _CheckDiskConsistency(self.lu, dev, node_name, on_primary,
+ ldisk=ldisk):
+ raise errors.OpExecError("Node %s has degraded storage, unsafe to"
+ " replace disks for instance %s" %
+ (node_name, self.instance.name))
+
+ def _CreateNewStorage(self, node_name):
+ vgname = self.cfg.GetVGName()
+ iv_names = {}
+
+ for idx, dev in enumerate(self.instance.disks):
+ if idx not in self.disks:
continue
- size = dev.size
- cfg.SetDiskID(dev, tgt_node)
- lv_names = [".disk%d_%s" % (idx, suf)
- for suf in ["data", "meta"]]
- names = _GenerateUniqueNames(self, lv_names)
- lv_data = objects.Disk(dev_type=constants.LD_LV, size=size,
+
+ self.lu.LogInfo("Adding storage on %s for disk/%d" % (node_name, idx))
+
+ self.cfg.SetDiskID(dev, node_name)
+
+ lv_names = [".disk%d_%s" % (idx, suffix) for suffix in ["data", "meta"]]
+ names = _GenerateUniqueNames(self.lu, lv_names)
+
+ lv_data = objects.Disk(dev_type=constants.LD_LV, size=dev.size,
logical_id=(vgname, names[0]))
lv_meta = objects.Disk(dev_type=constants.LD_LV, size=128,
logical_id=(vgname, names[1]))
+
new_lvs = [lv_data, lv_meta]
old_lvs = dev.children
iv_names[dev.iv_name] = (dev, old_lvs, new_lvs)
- info("creating new local storage on %s for %s" %
- (tgt_node, dev.iv_name))
+
# we pass force_create=True to force the LVM creation
for new_lv in new_lvs:
- _CreateBlockDev(self, tgt_node, instance, new_lv, True,
- _GetInstanceInfoText(instance), False)
+ _CreateBlockDev(self.lu, node_name, self.instance, new_lv, True,
+ _GetInstanceInfoText(self.instance), False)
+
+ return iv_names
+
+ def _CheckDevices(self, node_name, iv_names):
+ for name, (dev, old_lvs, new_lvs) in iv_names.iteritems():
+ self.cfg.SetDiskID(dev, node_name)
+
+ result = self.rpc.call_blockdev_find(node_name, dev)
+
+ msg = result.fail_msg
+ if msg or not result.payload:
+ if not msg:
+ msg = "disk not found"
+ raise errors.OpExecError("Can't find DRBD device %s: %s" %
+ (name, msg))
+
+ if result.payload.is_degraded:
+ raise errors.OpExecError("DRBD device %s is degraded!" % name)
+
+ def _RemoveOldStorage(self, node_name, iv_names):
+ for name, (dev, old_lvs, _) in iv_names.iteritems():
+ self.lu.LogInfo("Remove logical volumes for %s" % name)
+
+ for lv in old_lvs:
+ self.cfg.SetDiskID(lv, node_name)
+
+ msg = self.rpc.call_blockdev_remove(node_name, lv).fail_msg
+ if msg:
+ self.lu.LogWarning("Can't remove old LV: %s" % msg,
+ hint="remove unused LVs manually")
+
+ def _ExecDrbd8DiskOnly(self):
+ """Replace a disk on the primary or secondary for DRBD 8.
+
+ The algorithm for replace is quite complicated:
+
+ 1. for each disk to be replaced:
+
+ 1. create new LVs on the target node with unique names
+ 1. detach old LVs from the drbd device
+ 1. rename old LVs to name_replaced.<time_t>
+ 1. rename new LVs to old LVs
+ 1. attach the new LVs (with the old names now) to the drbd device
+
+ 1. wait for sync across all devices
+
+ 1. for each modified disk:
+
+ 1. remove old LVs (which have the name name_replaces.<time_t>)
+
+ Failures are not very well handled.
+
+ """
+ steps_total = 6
+
+ # Step: check device activation
+ self.lu.LogStep(1, steps_total, "Check device existence")
+ self._CheckDisksExistence([self.other_node, self.target_node])
+ self._CheckVolumeGroup([self.target_node, self.other_node])
+
+ # Step: check other node consistency
+ self.lu.LogStep(2, steps_total, "Check peer consistency")
+ self._CheckDisksConsistency(self.other_node,
+ self.other_node == self.instance.primary_node,
+ False)
+
+ # Step: create new storage
+ self.lu.LogStep(3, steps_total, "Allocate new storage")
+ iv_names = self._CreateNewStorage(self.target_node)
# Step: for each lv, detach+rename*2+attach
- self.proc.LogStep(4, steps_total, "change drbd configuration")
+ self.lu.LogStep(4, steps_total, "Changing drbd configuration")
for dev, old_lvs, new_lvs in iv_names.itervalues():
- info("detaching %s drbd from local storage" % dev.iv_name)
- result = self.rpc.call_blockdev_removechildren(tgt_node, dev, old_lvs)
+ self.lu.LogInfo("Detaching %s drbd from local storage" % dev.iv_name)
+
+ result = self.rpc.call_blockdev_removechildren(self.target_node, dev,
+ old_lvs)
result.Raise("Can't detach drbd from local storage on node"
- " %s for device %s" % (tgt_node, dev.iv_name))
+ " %s for device %s" % (self.target_node, dev.iv_name))
#dev.children = []
#cfg.Update(instance)
temp_suffix = int(time.time())
ren_fn = lambda d, suff: (d.physical_id[0],
d.physical_id[1] + "_replaced-%s" % suff)
- # build the rename list based on what LVs exist on the node
- rlist = []
+
+ # Build the rename list based on what LVs exist on the node
+ rename_old_to_new = []
for to_ren in old_lvs:
- result = self.rpc.call_blockdev_find(tgt_node, to_ren)
+ result = self.rpc.call_blockdev_find(self.target_node, to_ren)
if not result.fail_msg and result.payload:
# device exists
- rlist.append((to_ren, ren_fn(to_ren, temp_suffix)))
+ rename_old_to_new.append((to_ren, ren_fn(to_ren, temp_suffix)))
- info("renaming the old LVs on the target node")
- result = self.rpc.call_blockdev_rename(tgt_node, rlist)
- result.Raise("Can't rename old LVs on node %s" % tgt_node)
- # now we rename the new LVs to the old LVs
- info("renaming the new LVs on the target node")
- rlist = [(new, old.physical_id) for old, new in zip(old_lvs, new_lvs)]
- result = self.rpc.call_blockdev_rename(tgt_node, rlist)
- result.Raise("Can't rename new LVs on node %s" % tgt_node)
+ self.lu.LogInfo("Renaming the old LVs on the target node")
+ result = self.rpc.call_blockdev_rename(self.target_node,
+ rename_old_to_new)
+ result.Raise("Can't rename old LVs on node %s" % self.target_node)
+
+ # Now we rename the new LVs to the old LVs
+ self.lu.LogInfo("Renaming the new LVs on the target node")
+ rename_new_to_old = [(new, old.physical_id)
+ for old, new in zip(old_lvs, new_lvs)]
+ result = self.rpc.call_blockdev_rename(self.target_node,
+ rename_new_to_old)
+ result.Raise("Can't rename new LVs on node %s" % self.target_node)
for old, new in zip(old_lvs, new_lvs):
new.logical_id = old.logical_id
- cfg.SetDiskID(new, tgt_node)
+ self.cfg.SetDiskID(new, self.target_node)
for disk in old_lvs:
disk.logical_id = ren_fn(disk, temp_suffix)
- cfg.SetDiskID(disk, tgt_node)
+ self.cfg.SetDiskID(disk, self.target_node)
- # now that the new lvs have the old name, we can add them to the device
- info("adding new mirror component on %s" % tgt_node)
- result = self.rpc.call_blockdev_addchildren(tgt_node, dev, new_lvs)
+ # Now that the new lvs have the old name, we can add them to the device
+ self.lu.LogInfo("Adding new mirror component on %s" % self.target_node)
+ result = self.rpc.call_blockdev_addchildren(self.target_node, dev,
+ new_lvs)
msg = result.fail_msg
if msg:
for new_lv in new_lvs:
- msg2 = self.rpc.call_blockdev_remove(tgt_node, new_lv).fail_msg
+ msg2 = self.rpc.call_blockdev_remove(self.target_node,
+ new_lv).fail_msg
if msg2:
- warning("Can't rollback device %s: %s", dev, msg2,
- hint="cleanup manually the unused logical volumes")
+ self.lu.LogWarning("Can't rollback device %s: %s", dev, msg2,
+ hint=("cleanup manually the unused logical"
+ "volumes"))
raise errors.OpExecError("Can't add local storage to drbd: %s" % msg)
dev.children = new_lvs
- cfg.Update(instance)
- # Step: wait for sync
+ self.cfg.Update(self.instance)
- # this can fail as the old devices are degraded and _WaitForSync
- # does a combined result over all disks, so we don't check its
- # return value
- self.proc.LogStep(5, steps_total, "sync devices")
- _WaitForSync(self, instance, unlock=True)
+ # Wait for sync
+ # This can fail as the old devices are degraded and _WaitForSync
+ # does a combined result over all disks, so we don't check its return value
+ self.lu.LogStep(5, steps_total, "Sync devices")
+ _WaitForSync(self.lu, self.instance, unlock=True)
- # so check manually all the devices
- for name, (dev, old_lvs, new_lvs) in iv_names.iteritems():
- cfg.SetDiskID(dev, instance.primary_node)
- result = self.rpc.call_blockdev_find(instance.primary_node, dev)
- msg = result.fail_msg
- if not msg and not result.payload:
- msg = "disk not found"
- if msg:
- raise errors.OpExecError("Can't find DRBD device %s: %s" %
- (name, msg))
- if result.payload[5]:
- raise errors.OpExecError("DRBD device %s is degraded!" % name)
+ # Check all devices manually
+ self._CheckDevices(self.instance.primary_node, iv_names)
# Step: remove old storage
- self.proc.LogStep(6, steps_total, "removing old storage")
- for name, (dev, old_lvs, new_lvs) in iv_names.iteritems():
- info("remove logical volumes for %s" % name)
- for lv in old_lvs:
- cfg.SetDiskID(lv, tgt_node)
- msg = self.rpc.call_blockdev_remove(tgt_node, lv).fail_msg
- if msg:
- warning("Can't remove old LV: %s" % msg,
- hint="manually remove unused LVs")
- continue
+ self.lu.LogStep(6, steps_total, "Removing old storage")
+ self._RemoveOldStorage(self.target_node, iv_names)
- def _ExecD8Secondary(self, feedback_fn):
- """Replace the secondary node for drbd8.
+ def _ExecDrbd8Secondary(self):
+ """Replace the secondary node for DRBD 8.
The algorithm for replace is quite complicated:
- for all disks of the instance:
"""
steps_total = 6
- warning, info = (self.proc.LogWarning, self.proc.LogInfo)
- instance = self.instance
- iv_names = {}
- # start of work
- cfg = self.cfg
- old_node = self.tgt_node
- new_node = self.new_node
- pri_node = instance.primary_node
- nodes_ip = {
- old_node: self.cfg.GetNodeInfo(old_node).secondary_ip,
- new_node: self.cfg.GetNodeInfo(new_node).secondary_ip,
- pri_node: self.cfg.GetNodeInfo(pri_node).secondary_ip,
- }
# Step: check device activation
- self.proc.LogStep(1, steps_total, "check device existence")
- info("checking volume groups")
- my_vg = cfg.GetVGName()
- results = self.rpc.call_vg_list([pri_node, new_node])
- for node in pri_node, new_node:
- res = results[node]
- res.Raise("Error checking node %s" % node)
- if my_vg not in res.payload:
- raise errors.OpExecError("Volume group '%s' not found on %s" %
- (my_vg, node))
- for idx, dev in enumerate(instance.disks):
- if idx not in self.op.disks:
- continue
- info("checking disk/%d on %s" % (idx, pri_node))
- cfg.SetDiskID(dev, pri_node)
- result = self.rpc.call_blockdev_find(pri_node, dev)
- msg = result.fail_msg
- if not msg and not result.payload:
- msg = "disk not found"
- if msg:
- raise errors.OpExecError("Can't find disk/%d on node %s: %s" %
- (idx, pri_node, msg))
+ self.lu.LogStep(1, steps_total, "Check device existence")
+ self._CheckDisksExistence([self.instance.primary_node])
+ self._CheckVolumeGroup([self.instance.primary_node])
# Step: check other node consistency
- self.proc.LogStep(2, steps_total, "check peer consistency")
- for idx, dev in enumerate(instance.disks):
- if idx not in self.op.disks:
- continue
- info("checking disk/%d consistency on %s" % (idx, pri_node))
- if not _CheckDiskConsistency(self, dev, pri_node, True, ldisk=True):
- raise errors.OpExecError("Primary node (%s) has degraded storage,"
- " unsafe to replace the secondary" %
- pri_node)
+ self.lu.LogStep(2, steps_total, "Check peer consistency")
+ self._CheckDisksConsistency(self.instance.primary_node, True, True)
# Step: create new storage
- self.proc.LogStep(3, steps_total, "allocate new storage")
- for idx, dev in enumerate(instance.disks):
- info("adding new local storage on %s for disk/%d" %
- (new_node, idx))
+ self.lu.LogStep(3, steps_total, "Allocate new storage")
+ for idx, dev in enumerate(self.instance.disks):
+ self.lu.LogInfo("Adding new local storage on %s for disk/%d" %
+ (self.new_node, idx))
# we pass force_create=True to force LVM creation
for new_lv in dev.children:
- _CreateBlockDev(self, new_node, instance, new_lv, True,
- _GetInstanceInfoText(instance), False)
+ _CreateBlockDev(self.lu, self.new_node, self.instance, new_lv, True,
+ _GetInstanceInfoText(self.instance), False)
# Step 4: dbrd minors and drbd setups changes
# after this, we must manually remove the drbd minors on both the
# error and the success paths
- minors = cfg.AllocateDRBDMinor([new_node for dev in instance.disks],
- instance.name)
- logging.debug("Allocated minors %s" % (minors,))
- self.proc.LogStep(4, steps_total, "changing drbd configuration")
- for idx, (dev, new_minor) in enumerate(zip(instance.disks, minors)):
- size = dev.size
- info("activating a new drbd on %s for disk/%d" % (new_node, idx))
+ self.lu.LogStep(4, steps_total, "Changing drbd configuration")
+ minors = self.cfg.AllocateDRBDMinor([self.new_node
+ for dev in self.instance.disks],
+ self.instance.name)
+ logging.debug("Allocated minors %r" % (minors,))
+
+ iv_names = {}
+ for idx, (dev, new_minor) in enumerate(zip(self.instance.disks, minors)):
+ self.lu.LogInfo("activating a new drbd on %s for disk/%d" %
+ (self.new_node, idx))
# create new devices on new_node; note that we create two IDs:
# one without port, so the drbd will be activated without
# networking information on the new node at this stage, and one
# with network, for the latter activation in step 4
(o_node1, o_node2, o_port, o_minor1, o_minor2, o_secret) = dev.logical_id
- if pri_node == o_node1:
+ if self.instance.primary_node == o_node1:
p_minor = o_minor1
else:
p_minor = o_minor2
- new_alone_id = (pri_node, new_node, None, p_minor, new_minor, o_secret)
- new_net_id = (pri_node, new_node, o_port, p_minor, new_minor, o_secret)
+ new_alone_id = (self.instance.primary_node, self.new_node, None,
+ p_minor, new_minor, o_secret)
+ new_net_id = (self.instance.primary_node, self.new_node, o_port,
+ p_minor, new_minor, o_secret)
iv_names[idx] = (dev, dev.children, new_net_id)
logging.debug("Allocated new_minor: %s, new_logical_id: %s", new_minor,
children=dev.children,
size=dev.size)
try:
- _CreateSingleBlockDev(self, new_node, instance, new_drbd,
- _GetInstanceInfoText(instance), False)
+ _CreateSingleBlockDev(self.lu, self.new_node, self.instance, new_drbd,
+ _GetInstanceInfoText(self.instance), False)
except errors.GenericError:
- self.cfg.ReleaseDRBDMinors(instance.name)
+ self.cfg.ReleaseDRBDMinors(self.instance.name)
raise
- for idx, dev in enumerate(instance.disks):
- # we have new devices, shutdown the drbd on the old secondary
- info("shutting down drbd for disk/%d on old node" % idx)
- cfg.SetDiskID(dev, old_node)
- msg = self.rpc.call_blockdev_shutdown(old_node, dev).fail_msg
+ # We have new devices, shutdown the drbd on the old secondary
+ for idx, dev in enumerate(self.instance.disks):
+ self.lu.LogInfo("Shutting down drbd for disk/%d on old node" % idx)
+ self.cfg.SetDiskID(dev, self.target_node)
+ msg = self.rpc.call_blockdev_shutdown(self.target_node, dev).fail_msg
if msg:
- warning("Failed to shutdown drbd for disk/%d on old node: %s" %
- (idx, msg),
- hint="Please cleanup this device manually as soon as possible")
+ self.lu.LogWarning("Failed to shutdown drbd for disk/%d on old"
+ "node: %s" % (idx, msg),
+ hint=("Please cleanup this device manually as"
+ " soon as possible"))
- info("detaching primary drbds from the network (=> standalone)")
- result = self.rpc.call_drbd_disconnect_net([pri_node], nodes_ip,
- instance.disks)[pri_node]
+ self.lu.LogInfo("Detaching primary drbds from the network (=> standalone)")
+ result = self.rpc.call_drbd_disconnect_net([self.instance.primary_node],
+ self.node_secondary_ip,
+ self.instance.disks)\
+ [self.instance.primary_node]
msg = result.fail_msg
if msg:
# detaches didn't succeed (unlikely)
- self.cfg.ReleaseDRBDMinors(instance.name)
+ self.cfg.ReleaseDRBDMinors(self.instance.name)
raise errors.OpExecError("Can't detach the disks from the network on"
" old node: %s" % (msg,))
# if we managed to detach at least one, we update all the disks of
# the instance to point to the new secondary
- info("updating instance configuration")
+ self.lu.LogInfo("Updating instance configuration")
for dev, _, new_logical_id in iv_names.itervalues():
dev.logical_id = new_logical_id
- cfg.SetDiskID(dev, pri_node)
- cfg.Update(instance)
+ self.cfg.SetDiskID(dev, self.instance.primary_node)
+
+ self.cfg.Update(self.instance)
# and now perform the drbd attach
- info("attaching primary drbds to new secondary (standalone => connected)")
- result = self.rpc.call_drbd_attach_net([pri_node, new_node], nodes_ip,
- instance.disks, instance.name,
+ self.lu.LogInfo("Attaching primary drbds to new secondary"
+ " (standalone => connected)")
+ result = self.rpc.call_drbd_attach_net([self.instance.primary_node,
+ self.new_node],
+ self.node_secondary_ip,
+ self.instance.disks,
+ self.instance.name,
False)
for to_node, to_result in result.items():
msg = to_result.fail_msg
if msg:
- warning("can't attach drbd disks on node %s: %s", to_node, msg,
- hint="please do a gnt-instance info to see the"
- " status of disks")
-
- # this can fail as the old devices are degraded and _WaitForSync
- # does a combined result over all disks, so we don't check its
- # return value
- self.proc.LogStep(5, steps_total, "sync devices")
- _WaitForSync(self, instance, unlock=True)
-
- # so check manually all the devices
- for idx, (dev, old_lvs, _) in iv_names.iteritems():
- cfg.SetDiskID(dev, pri_node)
- result = self.rpc.call_blockdev_find(pri_node, dev)
- msg = result.fail_msg
- if not msg and not result.payload:
- msg = "disk not found"
- if msg:
- raise errors.OpExecError("Can't find DRBD device disk/%d: %s" %
- (idx, msg))
- if result.payload[5]:
- raise errors.OpExecError("DRBD device disk/%d is degraded!" % idx)
-
- self.proc.LogStep(6, steps_total, "removing old storage")
- for idx, (dev, old_lvs, _) in iv_names.iteritems():
- info("remove logical volumes for disk/%d" % idx)
- for lv in old_lvs:
- cfg.SetDiskID(lv, old_node)
- msg = self.rpc.call_blockdev_remove(old_node, lv).fail_msg
- if msg:
- warning("Can't remove LV on old secondary: %s", msg,
- hint="Cleanup stale volumes by hand")
+ self.lu.LogWarning("Can't attach drbd disks on node %s: %s",
+ to_node, msg,
+ hint=("please do a gnt-instance info to see the"
+ " status of disks"))
- def Exec(self, feedback_fn):
- """Execute disk replacement.
+ # Wait for sync
+ # This can fail as the old devices are degraded and _WaitForSync
+ # does a combined result over all disks, so we don't check its return value
+ self.lu.LogStep(5, steps_total, "Sync devices")
+ _WaitForSync(self.lu, self.instance, unlock=True)
- This dispatches the disk replacement to the appropriate handler.
+ # Check all devices manually
+ self._CheckDevices(self.instance.primary_node, iv_names)
- """
- instance = self.instance
+ # Step: remove old storage
+ self.lu.LogStep(6, steps_total, "Removing old storage")
+ self._RemoveOldStorage(self.target_node, iv_names)
- # Activate the instance disks if we're replacing them on a down instance
- if not instance.admin_up:
- _StartInstanceDisks(self, instance, True)
- if self.op.mode == constants.REPLACE_DISK_CHG:
- fn = self._ExecD8Secondary
- else:
- fn = self._ExecD8DiskOnly
+class LURepairNodeStorage(NoHooksLU):
+ """Repairs the volume group on a node.
- ret = fn(feedback_fn)
+ """
+ _OP_REQP = ["node_name"]
+ REQ_BGL = False
- # Deactivate the instance disks if we're replacing them on a down instance
- if not instance.admin_up:
- _SafeShutdownInstanceDisks(self, instance)
+ def CheckArguments(self):
+ node_name = self.cfg.ExpandNodeName(self.op.node_name)
+ if node_name is None:
+ raise errors.OpPrereqError("Invalid node name '%s'" % self.op.node_name)
- return ret
+ self.op.node_name = node_name
+
+ def ExpandNames(self):
+ self.needed_locks = {
+ locking.LEVEL_NODE: [self.op.node_name],
+ }
+
+ def _CheckFaultyDisks(self, instance, node_name):
+ if _FindFaultyInstanceDisks(self.cfg, self.rpc, instance,
+ node_name, True):
+ raise errors.OpPrereqError("Instance '%s' has faulty disks on"
+ " node '%s'" % (instance.name, node_name))
+
+ def CheckPrereq(self):
+ """Check prerequisites.
+
+ """
+ storage_type = self.op.storage_type
+
+ if (constants.SO_FIX_CONSISTENCY not in
+ constants.VALID_STORAGE_OPERATIONS.get(storage_type, [])):
+ raise errors.OpPrereqError("Storage units of type '%s' can not be"
+ " repaired" % storage_type)
+
+ # Check whether any instance on this node has faulty disks
+ for inst in _GetNodeInstances(self.cfg, self.op.node_name):
+ check_nodes = set(inst.all_nodes)
+ check_nodes.discard(self.op.node_name)
+ for inst_node_name in check_nodes:
+ self._CheckFaultyDisks(inst, inst_node_name)
+
+ def Exec(self, feedback_fn):
+ feedback_fn("Repairing storage unit '%s' on %s ..." %
+ (self.op.name, self.op.node_name))
+
+ st_args = _GetStorageTypeArgs(self.cfg, self.op.storage_type)
+ result = self.rpc.call_storage_execute(self.op.node_name,
+ self.op.storage_type, st_args,
+ self.op.name,
+ constants.SO_FIX_CONSISTENCY)
+ result.Raise("Failed to repair storage unit '%s' on %s" %
+ (self.op.name, self.op.node_name))
class LUGrowDisk(LogicalUnit):
def ExpandNames(self):
self.needed_locks = {}
- self.share_locks = dict(((i, 1) for i in locking.LEVELS))
+ self.share_locks = dict.fromkeys(locking.LEVELS, 1)
if not isinstance(self.op.instances, list):
raise errors.OpPrereqError("Invalid argument type 'instances'")
in self.wanted_names]
return
+ def _ComputeBlockdevStatus(self, node, instance_name, dev):
+ """Returns the status of a block device
+
+ """
+ if self.op.static or not node:
+ return None
+
+ self.cfg.SetDiskID(dev, node)
+
+ result = self.rpc.call_blockdev_find(node, dev)
+ if result.offline:
+ return None
+
+ result.Raise("Can't compute disk status for %s" % instance_name)
+
+ status = result.payload
+ if status is None:
+ return None
+
+ return (status.dev_path, status.major, status.minor,
+ status.sync_percent, status.estimated_time,
+ status.is_degraded, status.ldisk_status)
+
def _ComputeDiskStatus(self, instance, snode, dev):
"""Compute block device status.
"""
- static = self.op.static
- if not static:
- self.cfg.SetDiskID(dev, instance.primary_node)
- dev_pstatus = self.rpc.call_blockdev_find(instance.primary_node, dev)
- if dev_pstatus.offline:
- dev_pstatus = None
- else:
- dev_pstatus.Raise("Can't compute disk status for %s" % instance.name)
- dev_pstatus = dev_pstatus.payload
- else:
- dev_pstatus = None
-
if dev.dev_type in constants.LDS_DRBD:
# we change the snode then (otherwise we use the one passed in)
if dev.logical_id[0] == instance.primary_node:
else:
snode = dev.logical_id[0]
- if snode and not static:
- self.cfg.SetDiskID(dev, snode)
- dev_sstatus = self.rpc.call_blockdev_find(snode, dev)
- if dev_sstatus.offline:
- dev_sstatus = None
- else:
- dev_sstatus.Raise("Can't compute disk status for %s" % instance.name)
- dev_sstatus = dev_sstatus.payload
- else:
- dev_sstatus = None
+ dev_pstatus = self._ComputeBlockdevStatus(instance.primary_node,
+ instance.name, dev)
+ dev_sstatus = self._ComputeBlockdevStatus(snode, instance.name, dev)
if dev.children:
dev_children = [self._ComputeDiskStatus(instance, snode, child)
"sstatus": dev_sstatus,
"children": dev_children,
"mode": dev.mode,
+ "size": dev.size,
}
return data
"pnode": instance.primary_node,
"snodes": instance.secondary_nodes,
"os": instance.os,
- "nics": [(nic.mac, nic.ip, nic.bridge) for nic in instance.nics],
+ # this happens to be the same format used for hooks
+ "nics": _NICListToTuple(self, instance.nics),
"disks": disks,
"hypervisor": instance.hypervisor,
"network_port": instance.network_port,
"hv_actual": cluster.FillHV(instance),
"be_instance": instance.beparams,
"be_actual": cluster.FillBE(instance),
+ "serial_no": instance.serial_no,
+ "mtime": instance.mtime,
+ "ctime": instance.ctime,
+ "uuid": instance.uuid,
}
result[instance.name] = idict
else:
if not isinstance(disk_op, int):
raise errors.OpPrereqError("Invalid disk index")
+ if not isinstance(disk_dict, dict):
+ msg = "Invalid disk value: expected dict, got '%s'" % disk_dict
+ raise errors.OpPrereqError(msg)
+
if disk_op == constants.DDM_ADD:
mode = disk_dict.setdefault('mode', constants.DISK_RDWR)
if mode not in constants.DISK_ACCESS_SET:
else:
if not isinstance(nic_op, int):
raise errors.OpPrereqError("Invalid nic index")
+ if not isinstance(nic_dict, dict):
+ msg = "Invalid nic value: expected dict, got '%s'" % nic_dict
+ raise errors.OpPrereqError(msg)
# nic_dict should be a dict
nic_ip = nic_dict.get('ip', None)
nic_bridge = nic_dict.get('bridge', None)
nic_link = nic_dict.get('link', None)
if nic_bridge and nic_link:
- raise errors.OpPrereqError("Cannot pass 'bridge' and 'link' at the same time")
+ raise errors.OpPrereqError("Cannot pass 'bridge' and 'link'"
+ " at the same time")
elif nic_bridge and nic_bridge.lower() == constants.VALUE_NONE:
nic_dict['bridge'] = None
elif nic_link and nic_link.lower() == constants.VALUE_NONE:
"""Return the new params dict for the given params.
@type old_params: dict
- @type old_params: old parameters
+ @param old_params: old parameters
@type update_dict: dict
- @type update_dict: dict containing new parameter values,
- or constants.VALUE_DEFAULT to reset the
- parameter to its default value
+ @param update_dict: dict containing new parameter values,
+ or constants.VALUE_DEFAULT to reset the
+ parameter to its default value
@type default_values: dict
@param default_values: default values for the filled parameters
@type parameter_types: dict
This only checks the instance list against the existing names.
"""
- force = self.force = self.op.force
+ self.force = self.op.force
# checking the new params on the primary/secondary nodes
# remove it from its current node. In the future we could fix this by:
# - making a tasklet to search (share-lock all), then create the new one,
# then one to remove, after
- # - removing the removal operation altoghether
+ # - removing the removal operation altogether
self.needed_locks[locking.LEVEL_NODE] = locking.ALL_SET
def DeclareLocks(self, level):
instance = self.instance
dst_node = self.dst_node
src_node = instance.primary_node
+
if self.op.shutdown:
# shutdown the instance, but not the disks
+ feedback_fn("Shutting down instance %s" % instance.name)
result = self.rpc.call_instance_shutdown(src_node, instance)
result.Raise("Could not shutdown instance %s on"
" node %s" % (instance.name, src_node))
for disk in instance.disks:
self.cfg.SetDiskID(disk, src_node)
+ # per-disk results
+ dresults = []
try:
for idx, disk in enumerate(instance.disks):
+ feedback_fn("Creating a snapshot of disk/%s on node %s" %
+ (idx, src_node))
+
# result.payload will be a snapshot of an lvm leaf of the one we passed
result = self.rpc.call_blockdev_snapshot(src_node, disk)
msg = result.fail_msg
finally:
if self.op.shutdown and instance.admin_up:
+ feedback_fn("Starting instance %s" % instance.name)
result = self.rpc.call_instance_start(src_node, instance, None, None)
msg = result.fail_msg
if msg:
cluster_name = self.cfg.GetClusterName()
for idx, dev in enumerate(snap_disks):
+ feedback_fn("Exporting snapshot %s from %s to %s" %
+ (idx, src_node, dst_node.name))
if dev:
result = self.rpc.call_snapshot_export(src_node, dev, dst_node.name,
instance, cluster_name, idx)
if msg:
self.LogWarning("Could not export disk/%s from node %s to"
" node %s: %s", idx, src_node, dst_node.name, msg)
+ dresults.append(False)
+ else:
+ dresults.append(True)
msg = self.rpc.call_blockdev_remove(src_node, dev).fail_msg
if msg:
self.LogWarning("Could not remove snapshot for disk/%d from node"
" %s: %s", idx, src_node, msg)
+ else:
+ dresults.append(False)
+ feedback_fn("Finalizing export on %s" % dst_node.name)
result = self.rpc.call_finalize_export(dst_node.name, instance, snap_disks)
+ fin_resu = True
msg = result.fail_msg
if msg:
self.LogWarning("Could not finalize export for instance %s"
" on node %s: %s", instance.name, dst_node.name, msg)
+ fin_resu = False
nodelist = self.cfg.GetNodeList()
nodelist.remove(dst_node.name)
# substitutes an empty list with the full cluster node list.
iname = instance.name
if nodelist:
+ feedback_fn("Removing old exports for instance %s" % iname)
exportlist = self.rpc.call_export_list(nodelist)
for node in exportlist:
if exportlist[node].fail_msg:
if msg:
self.LogWarning("Could not remove older export for instance %s"
" on node %s: %s", iname, node, msg)
+ return fin_resu, dresults
class LURemoveExport(NoHooksLU):
"relocate_from",
]
- def __init__(self, lu, mode, name, **kwargs):
- self.lu = lu
+ def __init__(self, cfg, rpc, mode, name, **kwargs):
+ self.cfg = cfg
+ self.rpc = rpc
# init buffer variables
self.in_text = self.out_text = self.in_data = self.out_data = None
# init all input fields so that pylint is happy
This is the data that is independent of the actual operation.
"""
- cfg = self.lu.cfg
+ cfg = self.cfg
cluster_info = cfg.GetClusterInfo()
# cluster data
data = {
elif self.mode == constants.IALLOCATOR_MODE_RELOC:
hypervisor_name = cfg.GetInstanceInfo(self.name).hypervisor
- node_data = self.lu.rpc.call_node_info(node_list, cfg.GetVGName(),
- hypervisor_name)
- node_iinfo = self.lu.rpc.call_all_instances_info(node_list,
- cluster_info.enabled_hypervisors)
+ node_data = self.rpc.call_node_info(node_list, cfg.GetVGName(),
+ hypervisor_name)
+ node_iinfo = \
+ self.rpc.call_all_instances_info(node_list,
+ cluster_info.enabled_hypervisors)
for nname, nresult in node_data.items():
# first fill in static (config-based) values
ninfo = cfg.GetNodeInfo(nname)
"master_candidate": ninfo.master_candidate,
}
- if not ninfo.offline:
+ if not (ninfo.offline or ninfo.drained):
nresult.Raise("Can't get data for node %s" % nname)
node_iinfo[nname].Raise("Can't get node instance info from node %s" %
nname)
remote_info = nresult.payload
+
for attr in ['memory_total', 'memory_free', 'memory_dom0',
'vg_size', 'vg_free', 'cpu_total']:
if attr not in remote_info:
done.
"""
- instance = self.lu.cfg.GetInstanceInfo(self.name)
+ instance = self.cfg.GetInstanceInfo(self.name)
if instance is None:
raise errors.ProgrammerError("Unknown instance '%s' passed to"
" IAllocator" % self.name)
"""
if call_fn is None:
- call_fn = self.lu.rpc.call_iallocator_runner
- data = self.in_text
+ call_fn = self.rpc.call_iallocator_runner
- result = call_fn(self.lu.cfg.GetMasterNode(), name, self.in_text)
+ result = call_fn(self.cfg.GetMasterNode(), name, self.in_text)
result.Raise("Failure while running the iallocator script")
self.out_text = result.payload
"""
if self.op.mode == constants.IALLOCATOR_MODE_ALLOC:
- ial = IAllocator(self,
+ ial = IAllocator(self.cfg, self.rpc,
mode=self.op.mode,
name=self.op.name,
mem_size=self.op.mem_size,
hypervisor=self.op.hypervisor,
)
else:
- ial = IAllocator(self,
+ ial = IAllocator(self.cfg, self.rpc,
mode=self.op.mode,
name=self.op.name,
relocate_from=list(self.relocate_from),