import os
import os.path
-import sha
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.
wanted.append(instance)
else:
- wanted = lu.cfg.GetInstanceList()
- return utils.NiceSort(wanted)
+ wanted = utils.NiceSort(lu.cfg.GetInstanceList())
+ return wanted
def _CheckOutputFields(static, dynamic, selected):
@param lu: the LU on behalf of which we make the check
@param node: the node to check
- @raise errors.OpPrereqError: if the nodes is offline
+ @raise errors.OpPrereqError: if the node is offline
"""
if lu.cfg.GetNodeInfo(node).offline:
raise errors.OpPrereqError("Can't use offline node %s" % node)
+def _CheckNodeNotDrained(lu, node):
+ """Ensure that a given node is not drained.
+
+ @param lu: the LU on behalf of which we make the check
+ @param node: the node to check
+ @raise errors.OpPrereqError: if the node is drained
+
+ """
+ if lu.cfg.GetNodeInfo(node).drained:
+ raise errors.OpPrereqError("Can't use drained node %s" % node)
+
+
def _BuildInstanceHookEnv(name, primary_node, secondary_nodes, os_type, status,
- memory, vcpus, nics):
+ memory, vcpus, nics, disk_template, disks,
+ bep, hvp, hypervisor_name):
"""Builds instance related env variables for hooks
This builds the hook environment from individual variables.
@param secondary_nodes: list of secondary nodes as strings
@type os_type: string
@param os_type: the name of the instance's OS
- @type status: string
- @param status: the desired status of the instances
+ @type status: boolean
+ @param status: the should_run status of the instance
@type memory: string
@param memory: the memory size of the instance
@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 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_name: string
+ @param hypervisor_name: the hypervisor for the instance
@rtype: dict
@return: the hook environment for this instance
"""
+ if status:
+ str_status = "up"
+ else:
+ str_status = "down"
env = {
"OP_TARGET": name,
"INSTANCE_NAME": name,
"INSTANCE_PRIMARY": primary_node,
"INSTANCE_SECONDARIES": " ".join(secondary_nodes),
"INSTANCE_OS_TYPE": os_type,
- "INSTANCE_STATUS": status,
+ "INSTANCE_STATUS": str_status,
"INSTANCE_MEMORY": memory,
"INSTANCE_VCPUS": vcpus,
+ "INSTANCE_DISK_TEMPLATE": disk_template,
+ "INSTANCE_HYPERVISOR": hypervisor_name,
}
if nics:
nic_count = len(nics)
- for idx, (ip, bridge, mac) in enumerate(nics):
+ for idx, (ip, mac, mode, link) in enumerate(nics):
if ip is None:
ip = ""
env["INSTANCE_NIC%d_IP" % idx] = ip
- env["INSTANCE_NIC%d_BRIDGE" % idx] = bridge
- env["INSTANCE_NIC%d_HWADDR" % idx] = mac
+ env["INSTANCE_NIC%d_MAC" % idx] = mac
+ env["INSTANCE_NIC%d_MODE" % idx] = mode
+ env["INSTANCE_NIC%d_LINK" % idx] = link
+ if mode == constants.NIC_MODE_BRIDGED:
+ env["INSTANCE_NIC%d_BRIDGE" % idx] = link
else:
nic_count = 0
env["INSTANCE_NIC_COUNT"] = nic_count
+ if disks:
+ disk_count = len(disks)
+ for idx, (size, mode) in enumerate(disks):
+ env["INSTANCE_DISK%d_SIZE" % idx] = size
+ env["INSTANCE_DISK%d_MODE" % idx] = mode
+ else:
+ disk_count = 0
+
+ env["INSTANCE_DISK_COUNT"] = disk_count
+
+ for source, kind in [(bep, "BE"), (hvp, "HV")]:
+ for key, value in source.items():
+ env["INSTANCE_%s_%s" % (kind, key)] = value
+
return env
+def _NICListToTuple(lu, nics):
+ """Build a list of nic information tuples.
+
+ 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
+ @type nics: list of L{objects.NIC}
+ @param nics: list of nics to convert to hooks tuples
+
+ """
+ hooks_nics = []
+ c_nicparams = lu.cfg.GetClusterInfo().nicparams[constants.PP_DEFAULT]
+ for nic in nics:
+ ip = nic.ip
+ mac = nic.mac
+ filled_params = objects.FillDict(c_nicparams, nic.nicparams)
+ mode = filled_params[constants.NIC_MODE]
+ link = filled_params[constants.NIC_LINK]
+ 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.
@return: the hook environment dictionary
"""
- bep = lu.cfg.GetClusterInfo().FillBE(instance)
+ cluster = lu.cfg.GetClusterInfo()
+ bep = cluster.FillBE(instance)
+ hvp = cluster.FillHV(instance)
args = {
'name': instance.name,
'primary_node': instance.primary_node,
'secondary_nodes': instance.secondary_nodes,
'os_type': instance.os,
- 'status': instance.os,
+ 'status': instance.admin_up,
'memory': bep[constants.BE_MEMORY],
'vcpus': bep[constants.BE_VCPUS],
- 'nics': [(nic.ip, nic.bridge, nic.mac) for nic in 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_name': instance.hypervisor,
}
if override:
args.update(override)
(mc_now, mc_max))
-def _CheckInstanceBridgesExist(lu, instance):
+def _CheckNicsBridgesExist(lu, target_nics, target_node,
+ profile=constants.PP_DEFAULT):
+ """Check that the brigdes needed by a list of nics exist.
+
+ """
+ c_nicparams = lu.cfg.GetClusterInfo().nicparams[profile]
+ paramslist = [objects.FillDict(c_nicparams, nic.nicparams)
+ for nic in target_nics]
+ brlist = [params[constants.NIC_LINK] for params in paramslist
+ if params[constants.NIC_MODE] == constants.NIC_MODE_BRIDGED]
+ if brlist:
+ result = lu.rpc.call_bridges_exist(target_node, brlist)
+ result.Raise("Error checking bridges on destination node '%s'" %
+ target_node, prereq=True)
+
+
+def _CheckInstanceBridgesExist(lu, instance, node=None):
"""Check that the brigdes needed by an instance exist.
"""
- # check bridges existance
- brlist = [nic.bridge for nic in instance.nics]
- result = lu.rpc.call_bridges_exist(instance.primary_node, brlist)
- result.Raise()
- if not result.data:
- raise errors.OpPrereqError("One or more target bridges %s does not"
- " exist on destination node '%s'" %
- (brlist, instance.primary_node))
+ if node is None:
+ node = instance.primary_node
+ _CheckNicsBridgesExist(lu, instance.nics, node)
+
+
+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(NoHooksLU):
+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()
- if not result.data:
- raise errors.OpExecError("Could not disable the master role")
+ result.Raise("Could not disable the master role")
priv_key, pub_key, _ = ssh.GetUserFiles(constants.GANETI_RUNAS)
utils.CreateBackup(priv_key)
utils.CreateBackup(pub_key)
"""
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):
+ 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
+ and their running status
+ @param vg_name: Ganeti Volume Group (result of self.cfg.GetVGName())
"""
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:
- feedback_fn(" - ERROR: connection to %s failed" % (node))
- return True
-
- if local_version != remote_version:
- feedback_fn(" - ERROR: sw version mismatch: master %s, node(%s) %s" %
- (local_version, node, remote_version))
- return True
-
- # checks vg existance and size > 20G
-
- bad = False
- 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:
- vgstatus = utils.CheckVolumeGroupSize(vglist, self.cfg.GetVGName(),
- constants.MIN_VG_SIZE)
- if vgstatus:
- feedback_fn(" - ERROR: %s on node %s" % (vgstatus, node))
- bad = 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
+
+ # full package version
+ 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)
+ 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)
+ _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))
- return bad
+ 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, [])
+ 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():
+ 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:
+ 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
-
- if not instanceconfig.status == 'down':
- 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 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:
+ 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.
"""
all_nodes = self.cfg.GetNodeList()
- # TODO: populate the environment with useful information for verify hooks
- env = {}
+ env = {
+ "CLUSTER_TAGS": " ".join(self.cfg.GetClusterInfo().GetTags())
+ }
+ for node in self.cfg.GetAllNodesInfo().values():
+ env["NODE_TAGS_%s" % node.name] = " ".join(node.GetTags())
+
return env, [], all_nodes
def Exec(self, feedback_fn):
"""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
nodelist = utils.NiceSort(self.cfg.GetNodeList())
nodeinfo = [self.cfg.GetNodeInfo(nname) for nname in nodelist]
instancelist = utils.NiceSort(self.cfg.GetInstanceList())
+ instanceinfo = dict((iname, self.cfg.GetInstanceInfo(iname))
+ for iname in instancelist)
i_non_redundant = [] # Non redundant instances
i_non_a_balanced = [] # Non auto-balanced instances
n_offline = [] # List of offline nodes
+ n_drained = [] # List of nodes being drained
node_volume = {}
node_instance = {}
node_info = {}
constants.NV_NODENETTEST: [(node.name, node.primary_ip,
node.secondary_ip) for node in nodeinfo
if not node.offline],
- constants.NV_LVLIST: vg_name,
constants.NV_INSTANCELIST: hypervisors,
- constants.NV_VGLIST: None,
constants.NV_VERSION: None,
constants.NV_HVINFO: self.cfg.GetHypervisorType(),
}
+ if vg_name is not None:
+ node_verify_param[constants.NV_VGLIST] = None
+ node_verify_param[constants.NV_LVLIST] = vg_name
+ node_verify_param[constants.NV_DRBDLIST] = None
all_nvinfo = self.rpc.call_node_verify(nodelist, node_verify_param,
self.cfg.GetClusterName())
cluster = self.cfg.GetClusterInfo()
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
- nresult = all_nvinfo[node].data
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
ntype = "master"
elif node_i.master_candidate:
ntype = "master candidate"
+ elif node_i.drained:
+ ntype = "drained"
+ 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))
- if all_nvinfo[node].failed or not isinstance(nresult, dict):
- feedback_fn(" - ERROR: connection to %s failed" % (node,))
- bad = True
+ msg = all_nvinfo[node].fail_msg
+ _ErrorIf(msg, self.ENODERPC, node, "while contacting node: %s", msg)
+ if msg:
continue
- result = self._VerifyNode(node_i, file_names, local_checksums,
- nresult, feedback_fn, master_files)
- bad = bad or result
+ nresult = all_nvinfo[node].payload
+ node_drbd = {}
+ for minor, instance in all_drbd_map[node].items():
+ 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)
+ 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 isinstance(lvdata, basestring):
- feedback_fn(" - ERROR: LVM problem on node %s: %s" %
- (node, lvdata.encode('string_escape')))
- bad = True
+ if vg_name is None:
+ node_volume[node] = {}
+ elif isinstance(lvdata, basestring):
+ _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:
node_info[node] = {
"mfree": int(nodeinfo['memory_free']),
- "dfree": int(nresult[constants.NV_VGLIST][vg_name]),
"pinst": [],
"sinst": [],
# dictionary holding all instances this node is secondary for,
# secondary.
"sinst-by-pnode": {},
}
- except ValueError:
- feedback_fn(" - ERROR: invalid value returned from node %s" % (node,))
- bad = True
+ # FIXME: devise a free space model for file based instances as well
+ if vg_name is not None:
+ 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):
+ _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)
- inst_config = self.cfg.GetInstanceInfo(instance)
- result = self._VerifyInstance(instance, inst_config, node_volume,
- node_instance, feedback_fn, n_offline)
- bad = bad or result
+ if verbose:
+ feedback_fn("* Verifying instance %s" % instance)
+ inst_config = instanceinfo[instance]
+ 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_offline:
feedback_fn(" - NOTICE: %d offline node(s) found." % len(n_offline))
- return not bad
+ if n_drained:
+ feedback_fn(" - NOTICE: %d drained node(s) found." % len(n_drained))
+
+ 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]
- if res.failed or res.data is False or not isinstance(res.data, list):
- if res.offline:
- # no need to warn or set fail return value
- continue
- feedback_fn(" Communication failure in hooks execution")
+ 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.data:
- 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.
def Exec(self, feedback_fn):
"""Verify integrity of cluster disks.
+ @rtype: tuple of three items
+ @return: a tuple of (dict of node-to-node_error, list of instances
+ which need activate-disks, dict of instance: (node, volume) for
+ missing volumes
+
"""
- result = res_nodes, res_nlvm, res_instances, res_missing = [], {}, [], {}
+ result = res_nodes, res_instances, res_missing = {}, [], {}
vg_name = self.cfg.GetVGName()
nodes = utils.NiceSort(self.cfg.GetNodeList())
nv_dict = {}
for inst in instances:
inst_lvs = {}
- if (inst.status != "up" or
+ if (not inst.admin_up or
inst.disk_template not in constants.DTS_NET_MIRROR):
continue
inst.MapLVsByNode(inst_lvs)
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
- lvs = node_lvs[node]
- if lvs.failed:
- if not lvs.offline:
- self.LogWarning("Connection to node %s failed: %s" %
- (node, lvs.data))
+ node_res = node_lvs[node]
+ if node_res.offline:
continue
- lvs = lvs.data
- if isinstance(lvs, basestring):
- logging.warning("Error enumerating LVs on node %s: %s", node, lvs)
- res_nlvm[node] = lvs
- elif not isinstance(lvs, dict):
- logging.warning("Connection to node %s failed or invalid data"
- " returned", node)
- res_nodes.append(node)
+ msg = node_res.fail_msg
+ if msg:
+ logging.warning("Error enumerating LVs on node %s: %s", node, msg)
+ res_nodes[node] = msg
continue
- for lv_name, (_, lv_inactive, lv_online) in lvs.iteritems():
+ lvs = node_res.payload
+ for lv_name, (_, lv_inactive, lv_online) in lvs.items():
inst = nv_dict.pop((node, lv_name), None)
if (not lv_online and inst is not None
and inst.name not in res_instances):
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_INSTANCE] = self.wanted_names
+ 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 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():
+ result = self.rpc.call_blockdev_getsizes(node, [v[2] for v in dskl])
+ 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))
+ return changed
+
+
class LURenameCluster(LogicalUnit):
"""Rename the cluster.
# shutdown the master IP
master = self.cfg.GetMasterNode()
result = self.rpc.call_node_stop_master(master, False)
- if result.failed or not result.data:
- raise errors.OpExecError("Could not disable the master role")
+ result.Raise("Could not disable the master role")
try:
cluster = self.cfg.GetClusterInfo()
result = self.rpc.call_upload_file(node_list,
constants.SSH_KNOWN_HOSTS_FILE)
for to_node, to_result in result.iteritems():
- if to_result.failed or not to_result.data:
- logging.error("Copy of file %s to node %s failed",
- constants.SSH_KNOWN_HOSTS_FILE, to_node)
+ msg = to_result.fail_msg
+ if msg:
+ msg = ("Copy of file %s to node %s failed: %s" %
+ (constants.SSH_KNOWN_HOSTS_FILE, to_node, msg))
+ self.proc.LogWarning(msg)
finally:
- result = self.rpc.call_node_start_master(master, False)
- if result.failed or not result.data:
+ 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"
- " the master, please restart manually.")
+ " the master, please restart manually: %s", msg)
def _RecursiveCheckIfLVMBased(disk):
@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
"""
_OP_REQP = []
REQ_BGL = False
- def CheckParameters(self):
+ def CheckArguments(self):
"""Check parameters
"""
if self.op.candidate_pool_size is not None:
try:
self.op.candidate_pool_size = int(self.op.candidate_pool_size)
- except ValueError, err:
+ except (ValueError, TypeError), err:
raise errors.OpPrereqError("Invalid candidate_pool_size value: %s" %
str(err))
if self.op.candidate_pool_size < 1:
if the given volume group is valid.
"""
- # FIXME: This only works because there is only one parameter that can be
- # changed or removed.
if self.op.vg_name is not None and not self.op.vg_name:
instances = self.cfg.GetAllInstancesInfo().values()
for inst in instances:
if self.op.vg_name:
vglist = self.rpc.call_vg_list(node_list)
for node in node_list:
- if vglist[node].failed:
+ msg = vglist[node].fail_msg
+ if msg:
# ignoring down node
- self.LogWarning("Node %s unreachable/error, ignoring" % node)
+ self.LogWarning("Error while gathering data on node %s"
+ " (ignoring node): %s", node, msg)
continue
- vgstatus = utils.CheckVolumeGroupSize(vglist[node].data,
+ vgstatus = utils.CheckVolumeGroupSize(vglist[node].payload,
self.op.vg_name,
constants.MIN_VG_SIZE)
if vgstatus:
(node, vgstatus))
self.cluster = cluster = self.cfg.GetClusterInfo()
- # validate beparams changes
+ # validate params changes
if self.op.beparams:
- utils.CheckBEParams(self.op.beparams)
- self.new_beparams = cluster.FillDict(
- cluster.beparams[constants.BEGR_DEFAULT], self.op.beparams)
+ utils.ForceDictType(self.op.beparams, constants.BES_PARAMETER_TYPES)
+ self.new_beparams = objects.FillDict(
+ cluster.beparams[constants.PP_DEFAULT], self.op.beparams)
+
+ if self.op.nicparams:
+ utils.ForceDictType(self.op.nicparams, constants.NICS_PARAMETER_TYPES)
+ self.new_nicparams = objects.FillDict(
+ cluster.nicparams[constants.PP_DEFAULT], self.op.nicparams)
+ objects.NIC.CheckParameterSyntax(self.new_nicparams)
# hypervisor list/parameters
- self.new_hvparams = cluster.FillDict(cluster.hvparams, {})
+ self.new_hvparams = objects.FillDict(cluster.hvparams, {})
if self.op.hvparams:
if not isinstance(self.op.hvparams, dict):
raise errors.OpPrereqError("Invalid 'hvparams' parameter on input")
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
hv_name in self.op.enabled_hypervisors)):
# either this is a new hypervisor, or its parameters have changed
hv_class = hypervisor.GetHypervisor(hv_name)
+ utils.ForceDictType(hv_params, constants.HVS_PARAMETER_TYPES)
hv_class.CheckParameterSyntax(hv_params)
_CheckHVParams(self, node_list, hv_name, hv_params)
"""
if self.op.vg_name is not None:
- if self.op.vg_name != self.cfg.GetVGName():
- self.cfg.SetVGName(self.op.vg_name)
+ new_volume = self.op.vg_name
+ if not new_volume:
+ new_volume = None
+ if new_volume != self.cfg.GetVGName():
+ self.cfg.SetVGName(new_volume)
else:
feedback_fn("Cluster LVM configuration already in desired"
" state, not changing")
if self.op.enabled_hypervisors is not None:
self.cluster.enabled_hypervisors = self.op.enabled_hypervisors
if self.op.beparams:
- self.cluster.beparams[constants.BEGR_DEFAULT] = self.new_beparams
+ self.cluster.beparams[constants.PP_DEFAULT] = self.new_beparams
+ if self.op.nicparams:
+ self.cluster.nicparams[constants.PP_DEFAULT] = self.new_nicparams
+
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.
+
+ ConfigWriter takes care of distributing the config and ssconf files, but
+ there are more files which should be distributed to all nodes. This function
+ makes sure those are copied.
+
+ @param lu: calling logical unit
+ @param additional_nodes: list of nodes not in the config to distribute to
+
+ """
+ # 1. Gather target nodes
+ myself = lu.cfg.GetNodeInfo(lu.cfg.GetMasterNode())
+ dist_nodes = lu.cfg.GetNodeList()
+ if additional_nodes is not None:
+ dist_nodes.extend(additional_nodes)
+ if myself.name in dist_nodes:
+ dist_nodes.remove(myself.name)
+ # 2. Gather files to distribute
+ dist_files = set([constants.ETC_HOSTS,
+ constants.SSH_KNOWN_HOSTS_FILE,
+ constants.RAPI_CERT_FILE,
+ constants.RAPI_USERS_FILE,
+ constants.HMAC_CLUSTER_KEY,
+ ])
+
+ enabled_hypervisors = lu.cfg.GetClusterInfo().enabled_hypervisors
+ for hv_name in enabled_hypervisors:
+ hv_class = hypervisor.GetHypervisor(hv_name)
+ dist_files.update(hv_class.GetAncillaryFiles())
+
+ # 3. Perform the files upload
+ for fname in dist_files:
+ if os.path.exists(fname):
+ result = lu.rpc.call_upload_file(dist_nodes, fname)
+ for to_node, to_result in result.items():
+ msg = to_result.fail_msg
+ if msg:
+ msg = ("Copy of file %s to node %s failed: %s" %
+ (fname, to_node, msg))
+ lu.proc.LogWarning(msg)
+
+
+class LURedistributeConfig(NoHooksLU):
+ """Force the redistribution of cluster configuration.
+
+ This is a very simple LU.
+
+ """
+ _OP_REQP = []
+ REQ_BGL = False
+
+ def ExpandNames(self):
+ self.needed_locks = {
+ locking.LEVEL_NODE: locking.ALL_SET,
+ }
+ self.share_locks[locking.LEVEL_NODE] = 1
+
+ def CheckPrereq(self):
+ """Check prerequisites.
+
+ """
+
+ def Exec(self, feedback_fn):
+ """Redistribute the configuration.
+
+ """
+ self.cfg.Update(self.cfg.GetClusterInfo())
+ _RedistributeAncillaryFiles(self)
def _WaitForSync(lu, instance, oneshot=False, unlock=False):
lu.cfg.SetDiskID(dev, node)
retries = 0
+ degr_retries = 10 # in seconds, as we sleep 1 second each time
while True:
max_time = 0
done = True
cumul_degraded = False
rstats = lu.rpc.call_blockdev_getmirrorstatus(node, instance.disks)
- if rstats.failed or not rstats.data:
- lu.LogWarning("Can't get any data from node %s", node)
+ msg = rstats.fail_msg
+ if msg:
+ lu.LogWarning("Can't get any data from node %s: %s", node, msg)
retries += 1
if retries >= 10:
raise errors.RemoteError("Can't contact node %s for mirror data,"
" aborting." % node)
time.sleep(6)
continue
- rstats = rstats.data
+ rstats = rstats.payload
retries = 0
- for i in range(len(rstats)):
- mstat = rstats[i]
+ for i, mstat in enumerate(rstats):
if mstat is None:
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
+ # we force restart of the loop
+ if (done or oneshot) and cumul_degraded and degr_retries > 0:
+ logging.info("Degraded disks found, %d retries left", degr_retries)
+ degr_retries -= 1
+ time.sleep(1)
+ continue
+
if done or oneshot:
break
"""
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)
- if rstats.failed or not rstats.data:
- logging.warning("Node %s: disk degraded, not found or node down", node)
+ msg = rstats.fail_msg
+ if msg:
+ lu.LogWarning("Can't find disk on node %s: %s", node, msg)
+ result = False
+ elif not rstats.payload:
+ lu.LogWarning("Can't find disk on node %s", node)
result = False
else:
- result = result and (not rstats.data[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)
selected=self.op.output_fields)
# Lock all nodes, in shared mode
+ # Temporary removal of locks, should be reverted later
+ # TODO: reintroduce locks when they are lighter-weight
self.needed_locks = {}
- self.share_locks[locking.LEVEL_NODE] = 1
- self.needed_locks[locking.LEVEL_NODE] = locking.ALL_SET
+ #self.share_locks[locking.LEVEL_NODE] = 1
+ #self.needed_locks[locking.LEVEL_NODE] = locking.ALL_SET
def CheckPrereq(self):
"""Check prerequisites.
@param rlist: a map with node names as keys and OS objects as values
@rtype: dict
- @returns: a dictionary with osnames as keys and as value another map, with
- nodes as keys and list of OS objects as values, eg::
+ @return: a dictionary with osnames as keys and as value another map, with
+ nodes as keys and tuples of (path, status, diagnose) as values, eg::
- {"debian-etch": {"node1": [<object>,...],
- "node2": [<object>,]}
+ {"debian-etch": {"node1": [(/usr/lib/..., True, ""),
+ (/srv/..., False, "invalid api")],
+ "node2": [(/srv/..., True, "")]}
}
"""
all_os = {}
- for node_name, nr in rlist.iteritems():
- if nr.failed or not nr.data:
+ # we build here the list of nodes that didn't fail the RPC (at RPC
+ # level), so that nodes with a non-responding node daemon don't
+ # make all OSes invalid
+ good_nodes = [node_name for node_name in rlist
+ if not rlist[node_name].fail_msg]
+ for node_name, nr in rlist.items():
+ if nr.fail_msg or not nr.payload:
continue
- for os_obj in nr.data:
- if os_obj.name not in all_os:
+ for name, path, status, diagnose in nr.payload:
+ if name not in all_os:
# build a list of nodes for this os containing empty lists
# for each node in node_list
- all_os[os_obj.name] = {}
- for nname in node_list:
- all_os[os_obj.name][nname] = []
- all_os[os_obj.name][node_name].append(os_obj)
+ all_os[name] = {}
+ for nname in good_nodes:
+ all_os[name][nname] = []
+ all_os[name][node_name].append((path, status, diagnose))
return all_os
def Exec(self, feedback_fn):
"""Compute the list of OSes.
"""
- node_list = self.acquired_locks[locking.LEVEL_NODE]
- node_data = self.rpc.call_os_diagnose(node_list)
- if node_data == False:
- raise errors.OpExecError("Can't gather the list of OSes")
- pol = self._DiagnoseByOS(node_list, node_data)
+ valid_nodes = [node for node in self.cfg.GetOnlineNodeList()]
+ node_data = self.rpc.call_os_diagnose(valid_nodes)
+ pol = self._DiagnoseByOS(valid_nodes, node_data)
output = []
- for os_name, os_data in pol.iteritems():
+ for os_name, os_data in pol.items():
row = []
for field in self.op.output_fields:
if field == "name":
val = os_name
elif field == "valid":
- val = utils.all([osl and osl[0] for osl in os_data.values()])
+ val = utils.all([osl and osl[0][1] for osl in os_data.values()])
elif field == "node_status":
+ # this is just a copy of the dict
val = {}
- for node_name, nos_list in os_data.iteritems():
- val[node_name] = [(v.status, v.path) for v in nos_list]
+ for node_name, nos_list in os_data.items():
+ val[node_name] = nos_list
else:
raise errors.ParameterError(field)
row.append(val)
"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))
for instance_name in instance_list:
instance = self.cfg.GetInstanceInfo(instance_name)
- if node.name == instance.primary_node:
- raise errors.OpPrereqError("Instance %s still running on the node,"
- " please remove first." % instance_name)
- if node.name in instance.secondary_nodes:
- raise errors.OpPrereqError("Instance %s has node as a secondary,"
+ if node.name in instance.all_nodes:
+ raise errors.OpPrereqError("Instance %s is still running on the node,"
" please remove first." % instance_name)
self.op.node_name = node.name
self.node = node
self.context.RemoveNode(node.name)
- self.rpc.call_node_leave_cluster(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)
"""Logical unit for querying nodes.
"""
- _OP_REQP = ["output_fields", "names"]
+ _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",
"bootid",
- "ctotal",
+ "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",
+ "role"] + _SIMPLE_FIELDS
)
def ExpandNames(self):
else:
self.wanted = locking.ALL_SET
- self.do_locking = self._FIELDS_STATIC.NonMatching(self.op.output_fields)
+ self.do_node_query = self._FIELDS_STATIC.NonMatching(self.op.output_fields)
+ self.do_locking = self.do_node_query and self.op.use_locking
if self.do_locking:
# if we don't request only static fields, we need to lock the nodes
self.needed_locks[locking.LEVEL_NODE] = self.wanted
# begin data gathering
- if self.do_locking:
+ if self.do_node_query:
live_data = {}
node_data = self.rpc.call_node_info(nodenames, self.cfg.GetVGName(),
self.cfg.GetHypervisorType())
for name in nodenames:
nodeinfo = node_data[name]
- if not nodeinfo.failed and nodeinfo.data:
- nodeinfo = nodeinfo.data
+ if not nodeinfo.fail_msg and nodeinfo.payload:
+ nodeinfo = nodeinfo.payload
fn = utils.TryConvert
live_data[name] = {
"mtotal": fn(int, nodeinfo.get('memory_total', None)),
"dfree": fn(int, nodeinfo.get('vg_free', None)),
"ctotal": fn(int, nodeinfo.get('cpu_total', None)),
"bootid": nodeinfo.get('bootid', None),
+ "cnodes": fn(int, nodeinfo.get('cpu_nodes', None)),
+ "csockets": fn(int, nodeinfo.get('cpu_sockets', None)),
}
else:
live_data[name] = {}
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 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)
output = []
for node in nodenames:
- if node not in volumes or volumes[node].failed or not volumes[node].data:
+ nresult = volumes[node]
+ if nresult.offline:
+ continue
+ msg = nresult.fail_msg
+ if msg:
+ self.LogWarning("Can't compute volume data on node %s: %s", node, msg)
continue
- node_vols = volumes[node].data[:]
+ node_vols = nresult.payload[:]
node_vols.sort(key=lambda vol: vol['dev'])
for vol in node_vols:
return output
+class LUQueryNodeStorage(NoHooksLU):
+ """Logical unit for getting information on storage units on node(s).
+
+ """
+ _OP_REQP = ["nodes", "storage_type", "output_fields"]
+ REQ_BGL = False
+ _FIELDS_STATIC = utils.FieldSet("node")
+
+ def ExpandNames(self):
+ storage_type = self.op.storage_type
+
+ if storage_type not in constants.VALID_STORAGE_FIELDS:
+ raise errors.OpPrereqError("Unknown storage type: %s" % storage_type)
+
+ 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 that the fields required are valid output fields.
+
+ """
+ self.op.name = getattr(self.op, "name", None)
+
+ self.nodes = self.acquired_locks[locking.LEVEL_NODE]
+
+ def Exec(self, feedback_fn):
+ """Computes the list of nodes and their attributes.
+
+ """
+ # 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
+
+ # 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.
- it is resolvable
- its parameters (single/dual homed) matches the cluster
- Any errors are signalled by raising errors.OpPrereqError.
+ Any errors are signaled by raising errors.OpPrereqError.
"""
node_name = self.op.node_name
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")
" 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 = []
+ mc_now, mc_max = self.cfg.GetMasterCandidateStats(exceptions)
+ # the new node will increase mc_max with one, so:
+ mc_max = min(mc_max + 1, cp_size)
+ self.master_candidate = mc_now < mc_max
- self.new_node = objects.Node(name=node,
- primary_ip=primary_ip,
- secondary_ip=secondary_ip,
- master_candidate=master_candidate,
- offline=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()
- if result.data:
- if constants.PROTOCOL_VERSION == result.data:
- logging.info("Communication to node %s fine, sw version %s match",
- node, result.data)
- else:
- raise errors.OpExecError("Version mismatch master version %s,"
- " node version %s" %
- (constants.PROTOCOL_VERSION, result.data))
+ result.Raise("Can't get version information from node %s" % node)
+ if constants.PROTOCOL_VERSION == result.payload:
+ logging.info("Communication to node %s fine, sw version %s match",
+ node, result.payload)
else:
- raise errors.OpExecError("Cannot get version from the new node")
+ raise errors.OpExecError("Version mismatch master version %s,"
+ " node version %s" %
+ (constants.PROTOCOL_VERSION, result.payload))
# setup ssh on node
logging.info("Copy ssh key to 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],
keyarray[3], keyarray[4], keyarray[5])
-
- if result.failed or not result.data:
- raise errors.OpExecError("Cannot transfer ssh keys to the new node")
+ result.Raise("Cannot transfer ssh keys to the new node")
# Add node to our /etc/hosts, and add key to known_hosts
- utils.AddHostToEtcHosts(new_node.name)
+ if self.cfg.GetClusterInfo().modify_etc_hosts:
+ utils.AddHostToEtcHosts(new_node.name)
if new_node.secondary_ip != new_node.primary_ip:
result = self.rpc.call_node_has_ip_address(new_node.name,
new_node.secondary_ip)
- if result.failed or not result.data:
+ result.Raise("Failure checking secondary ip on node %s" % new_node.name,
+ prereq=True)
+ if not result.payload:
raise errors.OpExecError("Node claims it doesn't have the secondary ip"
" you gave (%s). Please fix and re-run this"
" command." % new_node.secondary_ip)
node_verify_list = [self.cfg.GetMasterNode()]
node_verify_param = {
- 'nodelist': [node],
+ constants.NV_NODELIST: [node],
# TODO: do a node-net-test as well?
}
result = self.rpc.call_node_verify(node_verify_list, node_verify_param,
self.cfg.GetClusterName())
for verifier in node_verify_list:
- if result[verifier].failed or not result[verifier].data:
- raise errors.OpExecError("Cannot communicate with %s's node daemon"
- " for remote verification" % verifier)
- if result[verifier].data['nodelist']:
- for failed in result[verifier].data['nodelist']:
+ result[verifier].Raise("Cannot communicate with node %s" % verifier)
+ nl_payload = result[verifier].payload[constants.NV_NODELIST]
+ if nl_payload:
+ for failed in nl_payload:
feedback_fn("ssh/hostname verification failed %s -> %s" %
- (verifier, result[verifier]['nodelist'][failed]))
+ (verifier, nl_payload[failed]))
raise errors.OpExecError("ssh/hostname verification failed.")
- # Distribute updated /etc/hosts and known_hosts to all nodes,
- # including the node just added
- myself = self.cfg.GetNodeInfo(self.cfg.GetMasterNode())
- dist_nodes = self.cfg.GetNodeList()
- if not self.op.readd:
- dist_nodes.append(node)
- if myself.name in dist_nodes:
- dist_nodes.remove(myself.name)
-
- logging.debug("Copying hosts and known_hosts to all nodes")
- for fname in (constants.ETC_HOSTS, constants.SSH_KNOWN_HOSTS_FILE):
- result = self.rpc.call_upload_file(dist_nodes, fname)
- for to_node, to_result in result.iteritems():
- if to_result.failed or not to_result.data:
- logging.error("Copy of file %s to node %s failed", fname, to_node)
-
- to_copy = []
- if constants.HT_XEN_HVM in self.cfg.GetClusterInfo().enabled_hypervisors:
- to_copy.append(constants.VNC_PASSWORD_FILE)
- for fname in to_copy:
- result = self.rpc.call_upload_file([node], fname)
- if result[node].failed or not result[node]:
- logging.error("Could not copy file %s to node %s", fname, node)
-
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)
self.op.node_name = node_name
_CheckBooleanOpField(self.op, 'master_candidate')
_CheckBooleanOpField(self.op, 'offline')
- if self.op.master_candidate is None and self.op.offline is None:
+ _CheckBooleanOpField(self.op, 'drained')
+ all_mods = [self.op.offline, self.op.master_candidate, self.op.drained]
+ if all_mods.count(None) == 3:
raise errors.OpPrereqError("Please pass at least one modification")
- if self.op.offline == True and self.op.master_candidate == True:
- raise errors.OpPrereqError("Can't set the node into offline and"
- " master_candidate at the same time")
+ if all_mods.count(True) > 1:
+ raise errors.OpPrereqError("Can't set the node into more than one"
+ " state at the same time")
def ExpandNames(self):
self.needed_locks = {locking.LEVEL_NODE: self.op.node_name}
"OP_TARGET": self.op.node_name,
"MASTER_CANDIDATE": str(self.op.master_candidate),
"OFFLINE": str(self.op.offline),
+ "DRAINED": str(self.op.drained),
}
nl = [self.cfg.GetMasterNode(),
self.op.node_name]
"""
node = self.node = self.cfg.GetNodeInfo(self.op.node_name)
- if ((self.op.master_candidate == False or self.op.offline == 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 and online")
+ raise errors.OpPrereqError("The master role can be changed"
+ " only via masterfailover")
+
+ if ((self.op.master_candidate == False or self.op.offline == True or
+ self.op.drained == True) and node.master_candidate):
cp_size = self.cfg.GetClusterInfo().candidate_pool_size
num_candidates, _ = self.cfg.GetMasterCandidateStats()
if num_candidates <= cp_size:
else:
raise errors.OpPrereqError(msg)
- if (self.op.master_candidate == True and node.offline and
- not self.op.offline == False):
- raise errors.OpPrereqError("Can't set an offline node to"
- " master_candidate")
+ if (self.op.master_candidate == True and
+ ((node.offline and not self.op.offline == False) or
+ (node.drained and not self.op.drained == False))):
+ raise errors.OpPrereqError("Node '%s' is offline or drained, can't set"
+ " to master_candidate" % node.name)
return
node = self.node
result = []
+ changed_mc = False
if self.op.offline is not None:
node.offline = self.op.offline
result.append(("offline", str(self.op.offline)))
- if self.op.offline == True and node.master_candidate:
- node.master_candidate = False
- result.append(("master_candidate", "auto-demotion due to offline"))
+ if self.op.offline == True:
+ if node.master_candidate:
+ node.master_candidate = False
+ changed_mc = True
+ result.append(("master_candidate", "auto-demotion due to offline"))
+ if node.drained:
+ node.drained = False
+ result.append(("drained", "clear drained status due to offline"))
if self.op.master_candidate is not None:
node.master_candidate = self.op.master_candidate
+ changed_mc = True
result.append(("master_candidate", str(self.op.master_candidate)))
if self.op.master_candidate == False:
rrc = self.rpc.call_node_demote_from_mc(node.name)
- if (rrc.failed or not isinstance(rrc.data, (tuple, list))
- or len(rrc.data) != 2):
- self.LogWarning("Node rpc error: %s" % rrc.error)
- elif not rrc.data[0]:
- self.LogWarning("Node failed to demote itself: %s" % rrc.data[1])
+ msg = rrc.fail_msg
+ if msg:
+ self.LogWarning("Node failed to demote itself: %s" % msg)
+
+ if self.op.drained is not None:
+ node.drained = self.op.drained
+ result.append(("drained", str(self.op.drained)))
+ if self.op.drained == True:
+ if node.master_candidate:
+ 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"))
# this will trigger configuration file update, if needed
self.cfg.Update(node)
# this will trigger job queue propagation or cleanup
- if self.op.node_name != self.cfg.GetMasterNode():
+ if changed_mc:
self.context.ReaddNode(node)
return result
+class LUPowercycleNode(NoHooksLU):
+ """Powercycles a node.
+
+ """
+ _OP_REQP = ["node_name", "force"]
+ 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
+ if node_name == self.cfg.GetMasterNode() and not self.op.force:
+ raise errors.OpPrereqError("The node is the master and the force"
+ " parameter was not set")
+
+ def ExpandNames(self):
+ """Locking for PowercycleNode.
+
+ This is a last-resort option and shouldn't block on other
+ jobs. Therefore, we grab no locks.
+
+ """
+ self.needed_locks = {}
+
+ def CheckPrereq(self):
+ """Check prerequisites.
+
+ This LU has no prereqs.
+
+ """
+ pass
+
+ def Exec(self, feedback_fn):
+ """Reboots a node.
+
+ """
+ result = self.rpc.call_node_powercycle(self.op.node_name,
+ self.cfg.GetHypervisorType())
+ result.Raise("Failed to schedule the reboot")
+ return result.payload
+
+
class LUQueryClusterInfo(NoHooksLU):
"""Query cluster configuration.
"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": cluster.hvparams,
+ "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)
- if result.failed or not result:
+ msg = result.fail_msg
+ if msg:
lu.proc.LogWarning("Could not prepare block device %s on node %s"
- " (is_primary=False, pass=1)",
- inst_disk.iv_name, node)
+ " (is_primary=False, pass=1): %s",
+ inst_disk.iv_name, node, msg)
if not ignore_secondaries:
disks_ok = False
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)
- if result.failed or not result:
+ msg = result.fail_msg
+ if msg:
lu.proc.LogWarning("Could not prepare block device %s on node %s"
- " (is_primary=True, pass=2)",
- inst_disk.iv_name, node)
+ " (is_primary=True, pass=2): %s",
+ inst_disk.iv_name, node, msg)
disks_ok = False
- device_info.append((instance.primary_node, inst_disk.iv_name, result.data))
+ device_info.append((instance.primary_node, inst_disk.iv_name,
+ result.payload))
# leave the disks configured for the primary node
# this is a workaround that would be fixed better by
"""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)
_ShutdownInstanceDisks.
"""
- ins_l = lu.rpc.call_instance_list([instance.primary_node],
- [instance.hypervisor])
- ins_l = ins_l[instance.primary_node]
- if ins_l.failed or not isinstance(ins_l.data, list):
- raise errors.OpExecError("Can't contact node '%s'" %
- instance.primary_node)
-
- if instance.name in ins_l.data:
+ pnode = instance.primary_node
+ ins_l = lu.rpc.call_instance_list([pnode], [instance.hypervisor])[pnode]
+ ins_l.Raise("Can't contact node %s" % pnode)
+
+ if instance.name in ins_l.payload:
raise errors.OpExecError("Instance is running, can't shutdown"
" block devices.")
ignored.
"""
- result = True
+ all_result = True
for disk in instance.disks:
for node, top_disk in disk.ComputeNodeTree(instance.primary_node):
lu.cfg.SetDiskID(top_disk, node)
result = lu.rpc.call_blockdev_shutdown(node, top_disk)
- if result.failed or not result.data:
- logging.error("Could not shutdown block device %s on node %s",
- disk.iv_name, node)
+ msg = result.fail_msg
+ if msg:
+ lu.LogWarning("Could not shutdown block device %s on node %s: %s",
+ disk.iv_name, node, msg)
if not ignore_primary or node != instance.primary_node:
- result = False
- return result
+ all_result = False
+ return all_result
def _CheckNodeFreeMemory(lu, node, reason, requested, hypervisor_name):
"""
nodeinfo = lu.rpc.call_node_info([node], lu.cfg.GetVGName(), hypervisor_name)
- nodeinfo[node].Raise()
- free_mem = nodeinfo[node].data.get('memory_free')
+ nodeinfo[node].Raise("Can't get data from node %s" % node, prereq=True)
+ free_mem = nodeinfo[node].payload.get('memory_free', None)
if not isinstance(free_mem, int):
raise errors.OpPrereqError("Can't compute free memory on node %s, result"
- " was '%s'" % (node, free_mem))
+ " was '%s'" % (node, free_mem))
if requested > free_mem:
raise errors.OpPrereqError("Not enough memory on node %s for %s:"
- " needed %s MiB, available %s MiB" %
- (node, reason, requested, free_mem))
+ " needed %s MiB, available %s MiB" %
+ (node, reason, requested, free_mem))
class LUStartupInstance(LogicalUnit):
"FORCE": self.op.force,
}
env.update(_BuildInstanceHookEnvByObject(self, self.instance))
- nl = ([self.cfg.GetMasterNode(), self.instance.primary_node] +
- list(self.instance.secondary_nodes))
+ nl = [self.cfg.GetMasterNode()] + list(self.instance.all_nodes)
return env, nl, nl
def CheckPrereq(self):
assert self.instance is not None, \
"Cannot retrieve locked instance %s" % self.op.instance_name
+ # extra beparams
+ self.beparams = getattr(self.op, "beparams", {})
+ if self.beparams:
+ if not isinstance(self.beparams, dict):
+ raise errors.OpPrereqError("Invalid beparams passed: %s, expected"
+ " dict" % (type(self.beparams), ))
+ # fill the beparams dict
+ utils.ForceDictType(self.beparams, constants.BES_PARAMETER_TYPES)
+ self.op.beparams = self.beparams
+
+ # extra hvparams
+ self.hvparams = getattr(self.op, "hvparams", {})
+ if self.hvparams:
+ if not isinstance(self.hvparams, dict):
+ raise errors.OpPrereqError("Invalid hvparams passed: %s, expected"
+ " dict" % (type(self.hvparams), ))
+
+ # check hypervisor parameter syntax (locally)
+ cluster = self.cfg.GetClusterInfo()
+ utils.ForceDictType(self.hvparams, constants.HVS_PARAMETER_TYPES)
+ filled_hvp = objects.FillDict(cluster.hvparams[instance.hypervisor],
+ instance.hvparams)
+ filled_hvp.update(self.hvparams)
+ hv_type = hypervisor.GetHypervisor(instance.hypervisor)
+ hv_type.CheckParameterSyntax(filled_hvp)
+ _CheckHVParams(self, instance.all_nodes, instance.hypervisor, filled_hvp)
+ self.op.hvparams = self.hvparams
+
_CheckNodeOnline(self, instance.primary_node)
bep = self.cfg.GetClusterInfo().FillBE(instance)
- # check bridges existance
+ # check bridges existence
_CheckInstanceBridgesExist(self, instance)
- _CheckNodeFreeMemory(self, instance.primary_node,
- "starting instance %s" % instance.name,
- bep[constants.BE_MEMORY], instance.hypervisor)
+ 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 not remote_info.payload: # not running already
+ _CheckNodeFreeMemory(self, instance.primary_node,
+ "starting instance %s" % instance.name,
+ bep[constants.BE_MEMORY], instance.hypervisor)
def Exec(self, feedback_fn):
"""Start the instance.
"""
instance = self.instance
force = self.op.force
- extra_args = getattr(self.op, "extra_args", "")
self.cfg.MarkInstanceUp(instance.name)
_StartInstanceDisks(self, instance, force)
- result = self.rpc.call_instance_start(node_current, instance, extra_args)
- if result.failed or not result.data:
+ result = self.rpc.call_instance_start(node_current, instance,
+ self.hvparams, self.beparams)
+ msg = result.fail_msg
+ if msg:
_ShutdownInstanceDisks(self, instance)
- raise errors.OpExecError("Could not start instance")
+ raise errors.OpExecError("Could not start instance: %s" % msg)
class LURebootInstance(LogicalUnit):
"""
env = {
"IGNORE_SECONDARIES": self.op.ignore_secondaries,
+ "REBOOT_TYPE": self.op.reboot_type,
}
env.update(_BuildInstanceHookEnvByObject(self, self.instance))
- nl = ([self.cfg.GetMasterNode(), self.instance.primary_node] +
- list(self.instance.secondary_nodes))
+ nl = [self.cfg.GetMasterNode()] + list(self.instance.all_nodes)
return env, nl, nl
def CheckPrereq(self):
_CheckNodeOnline(self, instance.primary_node)
- # check bridges existance
+ # check bridges existence
_CheckInstanceBridgesExist(self, instance)
def Exec(self, feedback_fn):
instance = self.instance
ignore_secondaries = self.op.ignore_secondaries
reboot_type = self.op.reboot_type
- extra_args = getattr(self.op, "extra_args", "")
node_current = instance.primary_node
if reboot_type in [constants.INSTANCE_REBOOT_SOFT,
constants.INSTANCE_REBOOT_HARD]:
+ for disk in instance.disks:
+ self.cfg.SetDiskID(disk, node_current)
result = self.rpc.call_instance_reboot(node_current, instance,
- reboot_type, extra_args)
- if result.failed or not result.data:
- raise errors.OpExecError("Could not reboot instance")
+ reboot_type)
+ result.Raise("Could not reboot instance")
else:
- if not self.rpc.call_instance_shutdown(node_current, instance):
- raise errors.OpExecError("could not shutdown instance for full reboot")
+ result = self.rpc.call_instance_shutdown(node_current, instance)
+ result.Raise("Could not shutdown instance for full reboot")
_ShutdownInstanceDisks(self, instance)
_StartInstanceDisks(self, instance, ignore_secondaries)
- result = self.rpc.call_instance_start(node_current, instance, extra_args)
- if result.failed or not result.data:
+ result = self.rpc.call_instance_start(node_current, instance, None, None)
+ msg = result.fail_msg
+ if msg:
_ShutdownInstanceDisks(self, instance)
- raise errors.OpExecError("Could not start instance for full reboot")
+ raise errors.OpExecError("Could not start instance for"
+ " full reboot: %s" % msg)
self.cfg.MarkInstanceUp(instance.name)
"""
env = _BuildInstanceHookEnvByObject(self, self.instance)
- nl = ([self.cfg.GetMasterNode(), self.instance.primary_node] +
- list(self.instance.secondary_nodes))
+ nl = [self.cfg.GetMasterNode()] + list(self.instance.all_nodes)
return env, nl, nl
def CheckPrereq(self):
node_current = instance.primary_node
self.cfg.MarkInstanceDown(instance.name)
result = self.rpc.call_instance_shutdown(node_current, instance)
- if result.failed or not result.data:
- self.proc.LogWarning("Could not shutdown instance")
+ msg = result.fail_msg
+ if msg:
+ self.proc.LogWarning("Could not shutdown instance: %s" % msg)
_ShutdownInstanceDisks(self, instance)
"""
env = _BuildInstanceHookEnvByObject(self, self.instance)
- nl = ([self.cfg.GetMasterNode(), self.instance.primary_node] +
- list(self.instance.secondary_nodes))
+ nl = [self.cfg.GetMasterNode()] + list(self.instance.all_nodes)
return env, nl, nl
def CheckPrereq(self):
if instance.disk_template == constants.DT_DISKLESS:
raise errors.OpPrereqError("Instance '%s' has no disks" %
self.op.instance_name)
- if instance.status != "down":
+ 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)
- if remote_info.failed or remote_info.data:
+ 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))
raise errors.OpPrereqError("Primary node '%s' is unknown" %
self.op.pnode)
result = self.rpc.call_os_get(pnode.name, self.op.os_type)
- result.Raise()
- if not isinstance(result.data, objects.OS):
- raise errors.OpPrereqError("OS '%s' not in supported OS list for"
- " primary node" % self.op.os_type)
+ result.Raise("OS '%s' not in supported OS list for primary node %s" %
+ (self.op.os_type, pnode.name), prereq=True)
self.instance = instance
_StartInstanceDisks(self, inst, None)
try:
feedback_fn("Running the instance OS create scripts...")
- result = self.rpc.call_instance_os_add(inst.primary_node, inst)
- result.Raise()
- if not result.data:
- raise errors.OpExecError("Could not install OS for instance %s"
- " on node %s" %
- (inst.name, inst.primary_node))
+ result = self.rpc.call_instance_os_add(inst.primary_node, inst, True)
+ result.Raise("Could not install OS for instance %s on node %s" %
+ (inst.name, inst.primary_node))
finally:
_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.
"""
env = _BuildInstanceHookEnvByObject(self, self.instance)
env["INSTANCE_NEW_NAME"] = self.op.new_name
- nl = ([self.cfg.GetMasterNode(), self.instance.primary_node] +
- list(self.instance.secondary_nodes))
+ nl = [self.cfg.GetMasterNode()] + list(self.instance.all_nodes)
return env, nl, nl
def CheckPrereq(self):
self.op.instance_name)
_CheckNodeOnline(self, instance.primary_node)
- if instance.status != "down":
+ 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()
- if remote_info.data:
+ 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))
result = self.rpc.call_file_storage_dir_rename(inst.primary_node,
old_file_storage_dir,
new_file_storage_dir)
- result.Raise()
- if not result.data:
- raise errors.OpExecError("Could not connect to node '%s' to rename"
- " directory '%s' to '%s' (but the instance"
- " has been renamed in Ganeti)" % (
- inst.primary_node, old_file_storage_dir,
- new_file_storage_dir))
-
- if not result.data[0]:
- raise errors.OpExecError("Could not rename directory '%s' to '%s'"
- " (but the instance has been renamed in"
- " Ganeti)" % (old_file_storage_dir,
- new_file_storage_dir))
+ result.Raise("Could not rename on node %s directory '%s' to '%s'"
+ " (but the instance has been renamed in Ganeti)" %
+ (inst.primary_node, old_file_storage_dir,
+ new_file_storage_dir))
_StartInstanceDisks(self, inst, None)
try:
result = self.rpc.call_instance_run_rename(inst.primary_node, inst,
old_name)
- if result.failed or not result.data:
+ msg = result.fail_msg
+ if msg:
msg = ("Could not run OS rename script for instance %s on node %s"
- " (but the instance has been renamed in Ganeti)" %
- (inst.name, inst.primary_node))
+ " (but the instance has been renamed in Ganeti): %s" %
+ (inst.name, inst.primary_node, msg))
self.proc.LogWarning(msg)
finally:
_ShutdownInstanceDisks(self, inst)
instance.name, instance.primary_node)
result = self.rpc.call_instance_shutdown(instance.primary_node, instance)
- if result.failed or not result.data:
+ msg = result.fail_msg
+ if msg:
if self.op.ignore_failures:
- feedback_fn("Warning: can't shutdown instance")
+ feedback_fn("Warning: can't shutdown instance: %s" % msg)
else:
- raise errors.OpExecError("Could not shutdown instance %s on node %s" %
- (instance.name, instance.primary_node))
+ raise errors.OpExecError("Could not shutdown instance %s on"
+ " node %s: %s" %
+ (instance.name, instance.primary_node, msg))
logging.info("Removing block devices for instance %s", instance.name)
"""Logical unit for querying instances.
"""
- _OP_REQP = ["output_fields", "names"]
+ _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", "admin_ram",
+ "admin_state",
"disk_template", "ip", "mac", "bridge",
+ "nic_mode", "nic_link",
"sda_size", "sdb_size", "vcpus", "tags",
"network_port", "beparams",
- "(disk).(size)/([0-9]+)",
- "(disk).(sizes)",
- "(nic).(mac|ip|bridge)/([0-9]+)",
- "(nic).(macs|ips|bridges)",
- "(disk|nic).(count)",
- "serial_no", "hypervisor", "hvparams",] +
+ r"(disk)\.(size)/([0-9]+)",
+ r"(disk)\.(sizes)", "disk_usage",
+ r"(nic)\.(mac|ip|mode|link)/([0-9]+)",
+ r"(nic)\.(bridge)/([0-9]+)",
+ r"(nic)\.(macs|ips|modes|links|bridges)",
+ r"(disk|nic)\.(count)",
+ "hvparams",
+ ] + _SIMPLE_FIELDS +
["hv/%s" % name
for name in constants.HVS_PARAMETERS] +
["be/%s" % name
else:
self.wanted = locking.ALL_SET
- self.do_locking = self._FIELDS_STATIC.NonMatching(self.op.output_fields)
+ self.do_node_query = self._FIELDS_STATIC.NonMatching(self.op.output_fields)
+ self.do_locking = self.do_node_query and self.op.use_locking
if self.do_locking:
self.needed_locks[locking.LEVEL_INSTANCE] = self.wanted
self.needed_locks[locking.LEVEL_NODE] = []
"""
all_info = self.cfg.GetAllInstancesInfo()
- if self.do_locking:
- instance_names = self.acquired_locks[locking.LEVEL_INSTANCE]
- elif self.wanted != locking.ALL_SET:
- instance_names = self.wanted
- missing = set(instance_names).difference(all_info.keys())
- if missing:
- raise errors.OpExecError(
- "Some instances were removed before retrieving their data: %s"
- % missing)
+ if self.wanted == locking.ALL_SET:
+ # caller didn't specify instance names, so ordering is not important
+ if self.do_locking:
+ instance_names = self.acquired_locks[locking.LEVEL_INSTANCE]
+ else:
+ instance_names = all_info.keys()
+ instance_names = utils.NiceSort(instance_names)
else:
- instance_names = all_info.keys()
+ # caller did specify names, so we must keep the ordering
+ if self.do_locking:
+ tgt_set = self.acquired_locks[locking.LEVEL_INSTANCE]
+ else:
+ tgt_set = all_info.keys()
+ missing = set(self.wanted).difference(tgt_set)
+ if missing:
+ raise errors.OpExecError("Some instances were removed before"
+ " retrieving their data: %s" % missing)
+ instance_names = self.wanted
- instance_names = utils.NiceSort(instance_names)
instance_list = [all_info[iname] for iname in instance_names]
# begin data gathering
bad_nodes = []
off_nodes = []
- if self.do_locking:
+ if self.do_node_query:
live_data = {}
node_data = self.rpc.call_all_instances_info(nodes, hv_list)
for name in nodes:
if result.offline:
# offline nodes will be in both lists
off_nodes.append(name)
- if result.failed:
+ if result.fail_msg:
bad_nodes.append(name)
else:
- if result.data:
- live_data.update(result.data)
- # else no instance is alive
+ if result.payload:
+ live_data.update(result.payload)
+ # else no instance is alive
else:
live_data = dict([(name, {}) for name in instance_names])
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 = list(instance.secondary_nodes)
elif field == "admin_state":
- val = (instance.status != "down")
+ val = instance.admin_up
elif field == "oper_state":
if instance.primary_node in bad_nodes:
val = None
else:
running = bool(live_data.get(instance.name))
if running:
- if instance.status != "down":
+ if instance.admin_up:
val = "running"
else:
val = "ERROR_up"
else:
- if instance.status != "down":
+ if instance.admin_up:
val = "ERROR_down"
else:
val = "ADMIN_down"
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 = instance.FindDisk(idx).size
except errors.OpPrereqError:
val = None
+ elif field == "disk_usage": # total disk usage per node
+ disk_sizes = [{'size': disk.size} for disk in instance.disks]
+ 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)
target_node = secondary_nodes[0]
_CheckNodeOnline(self, target_node)
- # check memory requirements on the secondary node
- _CheckNodeFreeMemory(self, target_node, "failing over instance %s" %
- instance.name, bep[constants.BE_MEMORY],
- instance.hypervisor)
+ _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
- brlist = [nic.bridge for nic in instance.nics]
- result = self.rpc.call_bridges_exist(target_node, brlist)
- result.Raise()
- if not result.data:
- raise errors.OpPrereqError("One or more target bridges %s does not"
- " exist on destination node '%s'" %
- (brlist, target_node))
+ _CheckInstanceBridgesExist(self, instance, node=target_node)
def Exec(self, feedback_fn):
"""Failover an instance.
for dev in instance.disks:
# for drbd, these are drbd over lvm
if not _CheckDiskConsistency(self, dev, target_node, False):
- if instance.status == "up" and not self.op.ignore_consistency:
+ if instance.admin_up and not self.op.ignore_consistency:
raise errors.OpExecError("Disk %s is degraded on target node,"
" aborting failover." % dev.iv_name)
instance.name, source_node)
result = self.rpc.call_instance_shutdown(source_node, instance)
- if result.failed or not result.data:
+ 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",
- instance.name, source_node, source_node)
+ " 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" %
- (instance.name, source_node))
+ raise errors.OpExecError("Could not shutdown instance %s on"
+ " node %s: %s" %
+ (instance.name, source_node, msg))
feedback_fn("* deactivating the instance's disks on source node")
if not _ShutdownInstanceDisks(self, instance, ignore_primary=True):
self.cfg.Update(instance)
# Only start the instance if it's marked as up
- if instance.status == "up":
+ if instance.admin_up:
feedback_fn("* activating the instance's disks on target node")
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)
raise errors.OpExecError("Can't activate the instance's disks")
feedback_fn("* starting the instance on the target node")
- result = self.rpc.call_instance_start(target_node, instance, None)
- if result.failed or not result.data:
+ 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." %
- (instance.name, target_node))
+ raise errors.OpExecError("Could not start instance %s on node %s: %s" %
+ (instance.name, target_node, msg))
-def _CreateBlockDevOnPrimary(lu, node, instance, device, info):
- """Create a tree of block devices on the primary node.
+class LUMigrateInstance(LogicalUnit):
+ """Migrate an instance.
- This always creates all devices.
+ This is migration without shutting down, compared to the failover,
+ which is done with shutdown.
"""
- if device.children:
- for child in device.children:
- if not _CreateBlockDevOnPrimary(lu, node, instance, child, info):
- return False
+ HPATH = "instance-migrate"
+ HTYPE = constants.HTYPE_INSTANCE
+ _OP_REQP = ["instance_name", "live", "cleanup"]
- lu.cfg.SetDiskID(device, node)
- new_id = lu.rpc.call_blockdev_create(node, device, device.size,
- instance.name, True, info)
- if new_id.failed or not new_id.data:
- return False
- if device.physical_id is None:
- device.physical_id = new_id
- return True
+ REQ_BGL = False
+ def ExpandNames(self):
+ self._ExpandAndLockInstance()
-def _CreateBlockDevOnSecondary(lu, node, instance, device, force, info):
- """Create a tree of block devices on a secondary node.
+ self.needed_locks[locking.LEVEL_NODE] = []
+ self.recalculate_locks[locking.LEVEL_NODE] = constants.LOCKS_REPLACE
- If this device type has to be created on secondaries, create it and
- all its children.
+ self._migrater = TLMigrateInstance(self, self.op.instance_name,
+ self.op.live, self.op.cleanup)
+ self.tasklets = [self._migrater]
- If not, just recurse to children keeping the same 'force' value.
+ def DeclareLocks(self, level):
+ if level == locking.LEVEL_NODE:
+ self._LockInstancesNodes()
- """
- if device.CreateOnSecondary():
- force = True
- if device.children:
- for child in device.children:
- if not _CreateBlockDevOnSecondary(lu, node, instance,
- child, force, info):
- return False
+ def BuildHooksEnv(self):
+ """Build hooks env.
- if not force:
- return True
- lu.cfg.SetDiskID(device, node)
- new_id = lu.rpc.call_blockdev_create(node, device, device.size,
- instance.name, False, info)
- if new_id.failed or not new_id.data:
- return False
- if device.physical_id is None:
- device.physical_id = new_id
- return True
+ This runs on master, primary and secondary nodes of the 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(instance.secondary_nodes)
+ return env, nl, nl
-def _GenerateUniqueNames(lu, exts):
+
+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):
+ """Check prerequisites.
+
+ This checks that the instance is in the cluster.
+
+ """
+ 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
+
+ node = self.cfg.GetNodeInfo(self.op.target_node)
+ assert node is not None, \
+ "Cannot retrieve locked node %s" % self.op.target_node
+
+ self.target_node = target_node = node.name
+
+ if target_node == instance.primary_node:
+ raise errors.OpPrereqError("Instance %s is already on the node %s" %
+ (instance.name, target_node))
+
+ 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)
+
+ def Exec(self, feedback_fn):
+ """Move an 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.
+
+ """
+ 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.feedback_fn("* wait until resync is done")
+ all_done = False
+ while not all_done:
+ all_done = True
+ result = self.rpc.call_drbd_wait_sync(self.all_nodes,
+ self.nodes_ip,
+ self.instance.disks)
+ min_percent = 100
+ for node, nres in result.items():
+ nres.Raise("Cannot resync disks on node %s" % node)
+ node_done, node_percent = nres.payload
+ all_done = all_done and node_done
+ if node_percent is not None:
+ min_percent = min(min_percent, node_percent)
+ if not all_done:
+ if min_percent < 100:
+ self.feedback_fn(" - progress: %.1f%%" % min_percent)
+ time.sleep(2)
+
+ def _EnsureSecondary(self, node):
+ """Demote a node to secondary.
+
+ """
+ self.feedback_fn("* switching node %s to secondary mode" % node)
+
+ for dev in self.instance.disks:
+ self.cfg.SetDiskID(dev, node)
+
+ result = self.rpc.call_blockdev_close(node, self.instance.name,
+ self.instance.disks)
+ result.Raise("Cannot change disk to secondary on node %s" % node)
+
+ def _GoStandalone(self):
+ """Disconnect from the network.
+
+ """
+ self.feedback_fn("* changing into standalone mode")
+ result = self.rpc.call_drbd_disconnect_net(self.all_nodes, self.nodes_ip,
+ self.instance.disks)
+ for node, nres in result.items():
+ nres.Raise("Cannot disconnect disks node %s" % node)
+
+ def _GoReconnect(self, multimaster):
+ """Reconnect to the network.
+
+ """
+ if multimaster:
+ msg = "dual-master"
+ else:
+ msg = "single-master"
+ self.feedback_fn("* changing disks into %s mode" % msg)
+ result = self.rpc.call_drbd_attach_net(self.all_nodes, self.nodes_ip,
+ self.instance.disks,
+ self.instance.name, multimaster)
+ for node, nres in result.items():
+ nres.Raise("Cannot change disks config on node %s" % node)
+
+ def _ExecCleanup(self):
+ """Try to cleanup after a failed migration.
+
+ The cleanup is done by:
+ - check that the instance is running only on one node
+ (and update the config if needed)
+ - change disks on its secondary node to secondary
+ - wait until disks are fully synchronized
+ - disconnect from the network
+ - change disks into single-master mode
+ - wait again until disks are fully synchronized
+
+ """
+ instance = self.instance
+ target_node = self.target_node
+ source_node = self.source_node
+
+ # check running on only one node
+ self.feedback_fn("* checking where the instance actually runs"
+ " (if this hangs, the hypervisor might be in"
+ " a bad state)")
+ ins_l = self.rpc.call_instance_list(self.all_nodes, [instance.hypervisor])
+ for node, result in ins_l.items():
+ result.Raise("Can't contact node %s" % node)
+
+ runningon_source = instance.name in ins_l[source_node].payload
+ runningon_target = instance.name in ins_l[target_node].payload
+
+ if runningon_source and runningon_target:
+ raise errors.OpExecError("Instance seems to be running on two nodes,"
+ " or the hypervisor is confused. You will have"
+ " to ensure manually that it runs only on one"
+ " and restart this operation.")
+
+ if not (runningon_source or runningon_target):
+ raise errors.OpExecError("Instance does not seem to be running at all."
+ " In this case, it's safer to repair by"
+ " running 'gnt-instance stop' to ensure disk"
+ " shutdown, and then restarting it.")
+
+ if runningon_target:
+ # the migration has actually succeeded, we need to update the config
+ self.feedback_fn("* instance running on secondary node (%s),"
+ " updating config" % target_node)
+ instance.primary_node = target_node
+ self.cfg.Update(instance)
+ demoted_node = source_node
+ else:
+ self.feedback_fn("* instance confirmed to be running on its"
+ " primary node (%s)" % source_node)
+ demoted_node = target_node
+
+ self._EnsureSecondary(demoted_node)
+ try:
+ self._WaitUntilSync()
+ except errors.OpExecError:
+ # we ignore here errors, since if the device is standalone, it
+ # won't be able to sync
+ pass
+ self._GoStandalone()
+ self._GoReconnect(False)
+ self._WaitUntilSync()
+
+ self.feedback_fn("* done")
+
+ def _RevertDiskStatus(self):
+ """Try to revert the disk status after a failed migration.
+
+ """
+ target_node = self.target_node
+ try:
+ self._EnsureSecondary(target_node)
+ self._GoStandalone()
+ self._GoReconnect(False)
+ self._WaitUntilSync()
+ except errors.OpExecError, 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.
+
+ """
+ instance = self.instance
+ target_node = self.target_node
+ migration_info = self.migration_info
+
+ abort_result = self.rpc.call_finalize_migration(target_node,
+ instance,
+ migration_info,
+ False)
+ abort_msg = abort_result.fail_msg
+ if abort_msg:
+ logging.error("Aborting migration failed on target node %s: %s" %
+ (target_node, abort_msg))
+ # Don't raise an exception here, as we stil have to try to revert the
+ # disk status, even if this step failed.
+
+ def _ExecMigration(self):
+ """Migrate an instance.
+
+ The migrate is done by:
+ - change the disks into dual-master mode
+ - wait until disks are fully synchronized again
+ - migrate the instance
+ - change disks on the new secondary node (the old primary) to secondary
+ - wait until disks are fully synchronized
+ - change disks into single-master mode
+
+ """
+ instance = self.instance
+ target_node = self.target_node
+ source_node = self.source_node
+
+ self.feedback_fn("* checking disk consistency between source and target")
+ for dev in instance.disks:
+ if not _CheckDiskConsistency(self, dev, target_node, False):
+ raise errors.OpExecError("Disk %s is degraded or not fully"
+ " synchronized on target node,"
+ " aborting migrate." % dev.iv_name)
+
+ # First get the migration information from the remote node
+ result = self.rpc.call_migration_info(source_node, instance)
+ msg = result.fail_msg
+ if msg:
+ log_err = ("Failed fetching source migration information from %s: %s" %
+ (source_node, msg))
+ logging.error(log_err)
+ raise errors.OpExecError(log_err)
+
+ self.migration_info = migration_info = result.payload
+
+ # Then switch the disks to master/master mode
+ self._EnsureSecondary(target_node)
+ self._GoStandalone()
+ self._GoReconnect(True)
+ self._WaitUntilSync()
+
+ self.feedback_fn("* preparing %s to accept the instance" % target_node)
+ result = self.rpc.call_accept_instance(target_node,
+ instance,
+ migration_info,
+ self.nodes_ip[target_node])
+
+ msg = result.fail_msg
+ if msg:
+ logging.error("Instance pre-migration failed, trying to revert"
+ " disk status: %s", msg)
+ self._AbortMigration()
+ self._RevertDiskStatus()
+ raise errors.OpExecError("Could not pre-migrate instance %s: %s" %
+ (instance.name, msg))
+
+ self.feedback_fn("* migrating instance to %s" % target_node)
+ time.sleep(10)
+ result = self.rpc.call_instance_migrate(source_node, instance,
+ self.nodes_ip[target_node],
+ self.live)
+ msg = result.fail_msg
+ if msg:
+ logging.error("Instance migration failed, trying to revert"
+ " disk status: %s", msg)
+ self._AbortMigration()
+ self._RevertDiskStatus()
+ raise errors.OpExecError("Could not migrate instance %s: %s" %
+ (instance.name, msg))
+ time.sleep(10)
+
+ instance.primary_node = target_node
+ # distribute new instance config to the other nodes
+ self.cfg.Update(instance)
+
+ result = self.rpc.call_finalize_migration(target_node,
+ instance,
+ migration_info,
+ True)
+ msg = result.fail_msg
+ if msg:
+ logging.error("Instance migration succeeded, but finalization failed:"
+ " %s" % msg)
+ raise errors.OpExecError("Could not finalize instance migration: %s" %
+ msg)
+
+ self._EnsureSecondary(source_node)
+ self._WaitUntilSync()
+ self._GoStandalone()
+ self._GoReconnect(False)
+ self._WaitUntilSync()
+
+ self.feedback_fn("* done")
+
+ def Exec(self, feedback_fn):
+ """Perform the migration.
+
+ """
+ feedback_fn("Migrating instance %s" % self.instance.name)
+
+ self.feedback_fn = feedback_fn
+
+ self.source_node = self.instance.primary_node
+ self.target_node = self.instance.secondary_nodes[0]
+ self.all_nodes = [self.source_node, self.target_node]
+ self.nodes_ip = {
+ self.source_node: self.cfg.GetNodeInfo(self.source_node).secondary_ip,
+ self.target_node: self.cfg.GetNodeInfo(self.target_node).secondary_ip,
+ }
+
+ if self.cleanup:
+ return self._ExecCleanup()
+ else:
+ return self._ExecMigration()
+
+
+def _CreateBlockDev(lu, node, instance, device, force_create,
+ info, force_open):
+ """Create a tree of block devices on a given node.
+
+ If this device type has to be created on secondaries, create it and
+ all its children.
+
+ If not, just recurse to children keeping the same 'force' value.
+
+ @param lu: the lu on whose behalf we execute
+ @param node: the node on which to create the device
+ @type instance: L{objects.Instance}
+ @param instance: the instance which owns the device
+ @type device: L{objects.Disk}
+ @param device: the device to create
+ @type force_create: boolean
+ @param force_create: whether to force creation of this device; this
+ will be change to True whenever we find a device which has
+ CreateOnSecondary() attribute
+ @param info: the extra 'metadata' we should attach to the device
+ (this will be represented as a LVM tag)
+ @type force_open: boolean
+ @param force_open: this parameter will be passes to the
+ L{backend.BlockdevCreate} function where it specifies
+ whether we run on primary or not, and it affects both
+ the child assembly and the device own Open() execution
+
+ """
+ if device.CreateOnSecondary():
+ force_create = True
+
+ if device.children:
+ for child in device.children:
+ _CreateBlockDev(lu, node, instance, child, force_create,
+ info, force_open)
+
+ if not force_create:
+ return
+
+ _CreateSingleBlockDev(lu, node, instance, device, info, force_open)
+
+
+def _CreateSingleBlockDev(lu, node, instance, device, info, force_open):
+ """Create a single block device on a given node.
+
+ This will not recurse over children of the device, so they must be
+ created in advance.
+
+ @param lu: the lu on whose behalf we execute
+ @param node: the node on which to create the device
+ @type instance: L{objects.Instance}
+ @param instance: the instance which owns the device
+ @type device: L{objects.Disk}
+ @param device: the device to create
+ @param info: the extra 'metadata' we should attach to the device
+ (this will be represented as a LVM tag)
+ @type force_open: boolean
+ @param force_open: this parameter will be passes to the
+ L{backend.BlockdevCreate} function where it specifies
+ whether we run on primary or not, and it affects both
+ the child assembly and the device own Open() execution
+
+ """
+ lu.cfg.SetDiskID(device, node)
+ result = lu.rpc.call_blockdev_create(node, device, device.size,
+ instance.name, force_open, info)
+ result.Raise("Can't create block device %s on"
+ " node %s for instance %s" % (device, node, instance.name))
+ if device.physical_id is None:
+ device.physical_id = result.payload
+
+
+def _GenerateUniqueNames(lu, exts):
"""Generate a suitable LV name.
This will generate a logical volume name for the given instance.
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
disk_dev = objects.Disk(dev_type=constants.LD_LV, size=disk["size"],
logical_id=(vgname, names[idx]),
- iv_name="disk/%d" % disk_index)
+ iv_name="disk/%d" % disk_index,
+ mode=disk["mode"])
disks.append(disk_dev)
elif template_name == constants.DT_DRBD8:
if len(secondary_nodes) != 1:
minors = lu.cfg.AllocateDRBDMinor(
[primary_node, remote_node] * len(disk_info), instance_name)
- names = _GenerateUniqueNames(lu,
- [".disk%d_%s" % (i, s)
- for i in range(disk_count)
- for s in ("data", "meta")
- ])
+ names = []
+ 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")
for idx, disk in enumerate(disk_info):
disk_index = idx + base_index
disk_dev = _GenerateDRBD8Branch(lu, primary_node, remote_node,
disk["size"], names[idx*2:idx*2+2],
"disk/%d" % disk_index,
minors[idx*2], minors[idx*2+1])
+ disk_dev.mode = disk["mode"]
disks.append(disk_dev)
elif template_name == constants.DT_FILE:
if len(secondary_nodes) != 0:
iv_name="disk/%d" % disk_index,
logical_id=(file_driver,
"%s/disk%d" % (file_storage_dir,
- idx)))
+ disk_index)),
+ mode=disk["mode"])
disks.append(disk_dev)
else:
raise errors.ProgrammerError("Invalid disk template '%s'" % template_name)
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)
+ 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(instance.primary_node,
- file_storage_dir)
-
- if result.failed or not result.data:
- logging.error("Could not connect to node '%s'", instance.primary_node)
- return False
+ result = lu.rpc.call_file_storage_dir_create(pnode, file_storage_dir)
- if not result.data[0]:
- logging.error("Failed to create directory '%s'", file_storage_dir)
- return False
+ result.Raise("Failed to create directory '%s' on"
+ " 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 secondary_node in instance.secondary_nodes:
- if not _CreateBlockDevOnSecondary(lu, secondary_node, instance,
- device, False, info):
- logging.error("Failed to create volume %s (%s) on secondary node %s!",
- device.iv_name, device, secondary_node)
- return False
- #HARDCODE
- if not _CreateBlockDevOnPrimary(lu, instance.primary_node,
- instance, device, info):
- logging.error("Failed to create volume %s on primary!", device.iv_name)
- return False
-
- return True
+ 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
"""
logging.info("Removing block devices for instance %s", instance.name)
- result = True
+ 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)
- result = lu.rpc.call_blockdev_remove(node, disk)
- if result.failed or not result.data:
- lu.proc.LogWarning("Could not remove block device %s on node %s,"
- " continuing anyway", device.iv_name, node)
- result = False
+ msg = lu.rpc.call_blockdev_remove(node, disk).fail_msg
+ if msg:
+ lu.LogWarning("Could not remove block device %s on node %s,"
+ " continuing anyway: %s", device.iv_name, node, msg)
+ all_result = False
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)
- if result.failed or not result.data:
- logging.error("Could not remove directory '%s'", file_storage_dir)
- result = False
+ 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, result.fail_msg)
+ all_result = False
- return result
+ return all_result
def _ComputeDiskSize(disk_template, disks):
hvparams)
for node in nodenames:
info = hvinfo[node]
- info.Raise()
- if not info.data or not isinstance(info.data, (tuple, list)):
- raise errors.OpPrereqError("Cannot get current information"
- " from node '%s' (%s)" % (node, info.data))
- if not info.data[0]:
- raise errors.OpPrereqError("Hypervisor parameter validation failed:"
- " %s" % info.data[1])
+ if info.offline:
+ continue
+ info.Raise("Hypervisor parameter validation failed on node %s" % node)
class LUCreateInstance(LogicalUnit):
",".join(enabled_hvs)))
# check hypervisor parameter syntax (locally)
-
- filled_hvp = cluster.FillDict(cluster.hvparams[self.op.hypervisor],
+ utils.ForceDictType(self.op.hvparams, constants.HVS_PARAMETER_TYPES)
+ filled_hvp = objects.FillDict(cluster.hvparams[self.op.hypervisor],
self.op.hvparams)
hv_type = hypervisor.GetHypervisor(self.op.hypervisor)
hv_type.CheckParameterSyntax(filled_hvp)
+ self.hv_full = filled_hvp
# fill and remember the beparams dict
- utils.CheckBEParams(self.op.beparams)
- self.be_full = cluster.FillDict(cluster.beparams[constants.BEGR_DEFAULT],
+ utils.ForceDictType(self.op.beparams, constants.BES_PARAMETER_TYPES)
+ self.be_full = objects.FillDict(cluster.beparams[constants.PP_DEFAULT],
self.op.beparams)
#### instance parameters check
# NIC buildup
self.nics = []
- for nic in self.op.nics:
+ for idx, nic in enumerate(self.op.nics):
+ nic_mode_req = nic.get("mode", None)
+ nic_mode = nic_mode_req
+ if nic_mode is None:
+ nic_mode = cluster.nicparams[constants.PP_DEFAULT][constants.NIC_MODE]
+
+ # in routed mode, for the first nic, the default ip is 'auto'
+ if nic_mode == constants.NIC_MODE_ROUTED and idx == 0:
+ default_ip_mode = constants.VALUE_AUTO
+ else:
+ default_ip_mode = constants.VALUE_NONE
+
# ip validity checks
- ip = nic.get("ip", None)
- if ip is None or ip.lower() == "none":
+ ip = nic.get("ip", default_ip_mode)
+ if ip is None or ip.lower() == constants.VALUE_NONE:
nic_ip = None
elif ip.lower() == constants.VALUE_AUTO:
nic_ip = hostname1.ip
" like a valid IP" % ip)
nic_ip = ip
+ # TODO: check the ip for uniqueness !!
+ if nic_mode == constants.NIC_MODE_ROUTED and not nic_ip:
+ raise errors.OpPrereqError("Routed nic mode requires an ip address")
+
# MAC address verification
mac = nic.get("mac", constants.VALUE_AUTO)
if mac not in (constants.VALUE_AUTO, constants.VALUE_GENERATE):
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", self.cfg.GetDefBridge())
- self.nics.append(objects.NIC(mac=mac, ip=nic_ip, bridge=bridge))
+ 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")
+ elif bridge and nic_mode == constants.NIC_MODE_ROUTED:
+ raise errors.OpPrereqError("Cannot pass 'bridge' on a routed nic")
+ elif bridge:
+ link = bridge
+
+ nicparams = {}
+ if nic_mode_req:
+ nicparams[constants.NIC_MODE] = nic_mode_req
+ if link:
+ nicparams[constants.NIC_LINK] = link
+
+ check_params = objects.FillDict(cluster.nicparams[constants.PP_DEFAULT],
+ nicparams)
+ objects.NIC.CheckParameterSyntax(check_params)
+ self.nics.append(objects.NIC(mac=mac, ip=nic_ip, nicparams=nicparams))
# disk checks/pre-build
self.disks = []
"""
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,
"""
env = {
- "INSTANCE_DISK_TEMPLATE": self.op.disk_template,
- "INSTANCE_DISK_SIZE": ",".join(str(d["size"]) for d in self.disks),
- "INSTANCE_ADD_MODE": self.op.mode,
+ "ADD_MODE": self.op.mode,
}
if self.op.mode == constants.INSTANCE_IMPORT:
- env["INSTANCE_SRC_NODE"] = self.op.src_node
- env["INSTANCE_SRC_PATH"] = self.op.src_path
- env["INSTANCE_SRC_IMAGES"] = self.src_images
+ env["SRC_NODE"] = self.op.src_node
+ env["SRC_PATH"] = self.op.src_path
+ env["SRC_IMAGES"] = self.src_images
- env.update(_BuildInstanceHookEnv(name=self.op.instance_name,
+ env.update(_BuildInstanceHookEnv(
+ name=self.op.instance_name,
primary_node=self.op.pnode,
secondary_nodes=self.secondaries,
- status=self.instance_status,
+ status=self.op.start,
os_type=self.op.os_type,
memory=self.be_full[constants.BE_MEMORY],
vcpus=self.be_full[constants.BE_VCPUS],
- nics=[(n.ip, n.bridge, n.mac) for n in 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_name=self.op.hypervisor,
))
nl = ([self.cfg.GetMasterNode(), self.op.pnode] +
raise errors.OpPrereqError("Cluster does not support lvm-based"
" instances")
-
if self.op.mode == constants.INSTANCE_IMPORT:
src_node = self.op.src_node
src_path = self.op.src_path
if src_node is None:
- exp_list = self.rpc.call_export_list(
- self.acquired_locks[locking.LEVEL_NODE])
+ locked_nodes = self.acquired_locks[locking.LEVEL_NODE]
+ exp_list = self.rpc.call_export_list(locked_nodes)
found = False
for node in exp_list:
- if not exp_list[node].failed and src_path in exp_list[node].data:
+ if exp_list[node].fail_msg:
+ continue
+ if src_path in exp_list[node].payload:
found = True
self.op.src_node = src_node = node
self.op.src_path = src_path = os.path.join(constants.EXPORT_DIR,
_CheckNodeOnline(self, src_node)
result = self.rpc.call_export_info(src_node, src_path)
- result.Raise()
- if not result.data:
- raise errors.OpPrereqError("No export found in dir %s" % src_path)
+ result.Raise("No export or invalid export found in dir %s" % src_path)
- export_info = result.data
+ export_info = objects.SerializableConfigParser.Loads(str(result.payload))
if not export_info.has_section(constants.INISECT_EXP):
raise errors.ProgrammerError("Corrupted export config")
nic_mac_ini = 'nic%d_mac' % idx
nic.mac = export_info.get(constants.INISECT_INS, nic_mac_ini)
+ # ENDIF: self.op.mode == constants.INSTANCE_IMPORT
# ip ping checks (we use the same ip that was resolved in ExpandNames)
if self.op.start and not self.op.ip_check:
raise errors.OpPrereqError("Cannot ignore IP address conflicts when"
raise errors.OpPrereqError("IP %s of instance %s already in use" %
(self.check_ip, self.op.instance_name))
+ #### mac address generation
+ # By generating here the mac address both the allocator and the hooks get
+ # the real final mac address rather than the 'auto' or 'generate' value.
+ # There is a race condition between the generation and the instance object
+ # creation, which means that we know the mac is valid now, but we're not
+ # sure it will be when we actually add the instance. If things go bad
+ # adding the instance will abort because of a duplicate mac, and the
+ # creation job will fail.
+ for nic in self.nics:
+ if nic.mac in (constants.VALUE_AUTO, constants.VALUE_GENERATE):
+ nic.mac = self.cfg.GenerateMAC()
+
#### allocator run
if self.op.iallocator is not None:
if pnode.offline:
raise errors.OpPrereqError("Cannot use offline primary node '%s'" %
pnode.name)
+ if pnode.drained:
+ raise errors.OpPrereqError("Cannot use drained primary node '%s'" %
+ pnode.name)
self.secondaries = []
if self.op.snode == pnode.name:
raise errors.OpPrereqError("The secondary node cannot be"
" the primary node.")
- self.secondaries.append(self.op.snode)
_CheckNodeOnline(self, self.op.snode)
+ _CheckNodeNotDrained(self, self.op.snode)
+ self.secondaries.append(self.op.snode)
nodenames = [pnode.name] + self.secondaries
self.op.hypervisor)
for node in nodenames:
info = nodeinfo[node]
- info.Raise()
- info = info.data
- if not info:
- raise errors.OpPrereqError("Cannot get current information"
- " from node '%s'" % node)
+ info.Raise("Cannot get current information from node %s" % node)
+ info = info.payload
vg_free = info.get('vg_free', None)
if not isinstance(vg_free, int):
raise errors.OpPrereqError("Can't compute free disk space on"
" node %s" % node)
- if req_size > info['vg_free']:
+ if req_size > vg_free:
raise errors.OpPrereqError("Not enough disk space on target node %s."
" %d MB available, %d MB required" %
- (node, info['vg_free'], req_size))
+ (node, vg_free, req_size))
_CheckHVParams(self, nodenames, self.op.hypervisor, self.op.hvparams)
# os verification
result = self.rpc.call_os_get(pnode.name, self.op.os_type)
- result.Raise()
- if not isinstance(result.data, objects.OS):
- raise errors.OpPrereqError("OS '%s' not in supported os list for"
- " primary node" % self.op.os_type)
-
- # bridge check on primary node
- bridges = [n.bridge for n in self.nics]
- result = self.rpc.call_bridges_exist(self.pnode.name, bridges)
- result.Raise()
- if not result.data:
- raise errors.OpPrereqError("One of the target bridges '%s' does not"
- " exist on destination node '%s'" %
- (",".join(bridges), pnode.name))
+ result.Raise("OS '%s' not in supported os list for primary node %s" %
+ (self.op.os_type, pnode.name), prereq=True)
+
+ _CheckNicsBridgesExist(self, self.nics, self.pnode.name)
# memory check on primary node
if self.op.start:
self.be_full[constants.BE_MEMORY],
self.op.hypervisor)
- if self.op.start:
- self.instance_status = 'up'
- else:
- self.instance_status = 'down'
+ self.dry_run_result = list(nodenames)
def Exec(self, feedback_fn):
"""Create and add the instance to the cluster.
instance = self.op.instance_name
pnode_name = self.pnode.name
- for nic in self.nics:
- if nic.mac in (constants.VALUE_AUTO, constants.VALUE_GENERATE):
- nic.mac = self.cfg.GenerateMAC()
-
ht_kind = self.op.hypervisor
if ht_kind in constants.HTS_REQ_PORT:
network_port = self.cfg.AllocatePort()
primary_node=pnode_name,
nics=self.nics, disks=disks,
disk_template=self.op.disk_template,
- status=self.instance_status,
+ admin_up=False,
network_port=network_port,
beparams=self.op.beparams,
hvparams=self.op.hvparams,
)
feedback_fn("* creating instance disks...")
- if not _CreateDisks(self, iobj):
- _RemoveDisks(self, iobj)
- self.cfg.ReleaseDRBDMinors(instance)
- raise errors.OpExecError("Device creation failed, reverting...")
+ try:
+ _CreateDisks(self, iobj)
+ except errors.OpExecError:
+ self.LogWarning("Device creation failed, reverting...")
+ try:
+ _RemoveDisks(self, iobj)
+ finally:
+ self.cfg.ReleaseDRBDMinors(instance)
+ raise
feedback_fn("adding instance %s to cluster config" % instance)
# Declare that we don't want to remove the instance lock anymore, as we've
# added the instance to the config
del self.remove_locks[locking.LEVEL_INSTANCE]
- # Remove the temp. assignements for the instance's drbds
- self.cfg.ReleaseDRBDMinors(instance)
# Unlock all the nodes
if self.op.mode == constants.INSTANCE_IMPORT:
nodes_keep = [self.op.src_node]
if iobj.disk_template != constants.DT_DISKLESS:
if self.op.mode == constants.INSTANCE_CREATE:
feedback_fn("* running the instance OS create scripts...")
- result = self.rpc.call_instance_os_add(pnode_name, iobj)
- result.Raise()
- if not result.data:
- raise errors.OpExecError("Could not add os for instance %s"
- " on node %s" %
- (instance, pnode_name))
+ result = self.rpc.call_instance_os_add(pnode_name, iobj, False)
+ result.Raise("Could not add os for instance %s"
+ " on node %s" % (instance, pnode_name))
elif self.op.mode == constants.INSTANCE_IMPORT:
feedback_fn("* running the instance OS import scripts...")
import_result = self.rpc.call_instance_os_import(pnode_name, iobj,
src_node, src_images,
cluster_name)
- import_result.Raise()
- for idx, result in enumerate(import_result.data):
- if not result:
- self.LogWarning("Could not import the image %s for instance"
- " %s, disk %d, on node %s" %
- (src_images[idx], instance, idx, pnode_name))
+ msg = import_result.fail_msg
+ if msg:
+ self.LogWarning("Error while importing the disk images for instance"
+ " %s on node %s: %s" % (instance, pnode_name, msg))
else:
# also checked in the prereq part
raise errors.ProgrammerError("Unknown OS initialization mode '%s'"
% self.op.mode)
if self.op.start:
+ iobj.admin_up = True
+ self.cfg.Update(iobj)
logging.info("Starting instance %s on node %s", instance, pnode_name)
feedback_fn("* starting instance...")
- result = self.rpc.call_instance_start(pnode_name, iobj, None)
- result.Raise()
- if not result.data:
- raise errors.OpExecError("Could not start instance")
+ 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):
node_insts = self.rpc.call_instance_list([node],
[instance.hypervisor])[node]
- node_insts.Raise()
+ node_insts.Raise("Can't get node information from %s" % node)
- if instance.name not in node_insts.data:
+ if instance.name not in node_insts.payload:
raise errors.OpExecError("Instance %s is not running." % instance.name)
logging.debug("Connecting to console of %s on %s", instance.name, node)
hyper = hypervisor.GetHypervisor(instance.hypervisor)
- console_cmd = hyper.GetShellCommandForConsole(instance)
+ cluster = self.cfg.GetClusterInfo()
+ # beparams and hvparams are passed separately, to avoid editing the
+ # instance and then saving the defaults in the instance itself.
+ hvparams = cluster.FillHV(instance)
+ beparams = cluster.FillBE(instance)
+ console_cmd = hyper.GetShellCommandForConsole(instance, hvparams, beparams)
# build ssh cmdline
return self.ssh.BuildCmd(node, "root", console_cmd, batch=True, tty=True)
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):
+ 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": instance.secondary_nodes[0],
+ }
+ env.update(_BuildInstanceHookEnvByObject(self, instance))
+ nl = [
+ self.cfg.GetMasterNode(),
+ 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(self,
+ ial = IAllocator(lu.cfg, lu.rpc,
mode=constants.IALLOCATOR_MODE_RELOC,
- name=self.op.instance_name,
- relocate_from=[self.sec_node])
+ name=instance_name,
+ relocate_from=relocate_from)
- ial.Run(self.op.iallocator)
+ ial.Run(iallocator_name)
if not ial.success:
- raise errors.OpPrereqError("Can't compute nodes using"
- " iallocator '%s': %s" % (self.op.iallocator,
- ial.info))
+ 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))
- 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.
+ remote_node_name = ial.nodes[0]
- This runs on the master, the primary and all the secondaries.
+ lu.LogInfo("Selected new secondary for instance '%s': %s",
+ instance_name, remote_node_name)
- """
- env = {
- "MODE": self.op.mode,
- "NEW_SECONDARY": self.op.remote_node,
- "OLD_SECONDARY": self.instance.secondary_nodes[0],
- }
- env.update(_BuildInstanceHookEnvByObject(self, self.instance))
- nl = [
- self.cfg.GetMasterNode(),
- self.instance.primary_node,
- ]
- if self.op.remote_node is not None:
- nl.append(self.op.remote_node)
- return env, nl, nl
+ 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
+ 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]
+
+ _CheckNodeNotDrained(self.lu, remote_node)
+
+ else:
+ raise errors.ProgrammerError("Unhandled disk replace mode (%s)" %
+ self.mode)
+
+ # If not specified all disks should be replaced
+ if not self.disks:
+ self.disks = range(len(self.instance.disks))
+
+ for node in check_nodes:
+ _CheckNodeOnline(self.lu, node)
+
+ # Check whether disks are valid
+ for disk_idx in self.disks:
+ self.instance.FindDisk(disk_idx)
+
+ # Get secondary node IP addresses
+ node_2nd_ip = {}
+
+ 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
+
+ self.node_secondary_ip = node_2nd_ip
+
+ def Exec(self, feedback_fn):
+ """Execute disk replacement.
+
+ This dispatches the disk replacement to the appropriate handler.
+
+ """
+ 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()
+
+ # 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 nodes:
+ res = results[node]
+ res.Raise("Error checking node %s" % node)
+ 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 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 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))
+
+ def _CheckDisksConsistency(self, node_name, on_primary, ldisk):
+ for idx, dev in enumerate(self.instance.disks):
+ if idx not in self.disks:
+ continue
+
+ 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
+
+ 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)
+
+ # we pass force_create=True to force the LVM creation
+ for new_lv in new_lvs:
+ _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)
- for disk_idx in self.op.disks:
- instance.FindDisk(disk_idx)
+ 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)
- def _ExecD8DiskOnly(self, feedback_fn):
- """Replace a disk on the primary or secondary for dbrd8.
+ 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:
"""
steps_total = 6
- warning, info = (self.proc.LogWarning, self.proc.LogInfo)
- instance = self.instance
- iv_names = {}
- 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])
- if not results:
- raise errors.OpExecError("Can't list volume groups on the nodes")
- for node in oth_node, tgt_node:
- res = results[node]
- if res.failed or not res.data or my_vg not in res.data:
- 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
- for node in tgt_node, oth_node:
- info("checking disk/%d on %s" % (idx, node))
- cfg.SetDiskID(dev, node)
- if not self.rpc.call_blockdev_find(node, dev):
- raise errors.OpExecError("Can't find disk/%d on node %s" %
- (idx, node))
+ 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.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, 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))
+ 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.proc.LogStep(3, steps_total, "allocate new storage")
- for idx, dev in enumerate(instance.disks):
- if idx not in self.op.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,
- 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))
- # since we *always* want to create this LV, we use the
- # _Create...OnPrimary (which forces the creation), even if we
- # are talking about the secondary node
- for new_lv in new_lvs:
- if not _CreateBlockDevOnPrimary(self, tgt_node, instance, new_lv,
- _GetInstanceInfoText(instance)):
- raise errors.OpExecError("Failed to create new LV named '%s' on"
- " node '%s'" %
- (new_lv.logical_id[1], tgt_node))
+ 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)
- result.Raise()
- if not result.data:
- raise errors.OpExecError("Can't detach drbd from local storage on node"
- " %s for device %s" % (tgt_node, dev.iv_name))
+ 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" % (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:
- find_res = self.rpc.call_blockdev_find(tgt_node, to_ren)
- if not find_res.failed and find_res.data is not None: # device exists
- rlist.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()
- if not result.data:
- raise errors.OpExecError("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()
- if not result.data:
- raise errors.OpExecError("Can't rename new LVs on node %s" % tgt_node)
+ result = self.rpc.call_blockdev_find(self.target_node, to_ren)
+ if not result.fail_msg and result.payload:
+ # device exists
+ rename_old_to_new.append((to_ren, ren_fn(to_ren, temp_suffix)))
+
+ 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)
-
- # 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)
- if result.failed or not result.data:
+ self.cfg.SetDiskID(disk, self.target_node)
+
+ # 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:
- result = self.rpc.call_blockdev_remove(tgt_node, new_lv)
- if result.failed or not result.data:
- warning("Can't rollback device %s", hint="manually cleanup unused"
- " logical volumes")
- raise errors.OpExecError("Can't add local storage to drbd")
+ msg2 = self.rpc.call_blockdev_remove(self.target_node,
+ new_lv).fail_msg
+ if msg2:
+ 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)
- if result.failed or result.data[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)
- result = self.rpc.call_blockdev_remove(tgt_node, lv)
- if result.failed or not result.data:
- warning("Can't remove old LV", 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
# 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]
- if res.failed or not res.data or my_vg not in res.data:
- 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)
- result.Raise()
- if not result.data:
- raise errors.OpExecError("Can't find disk/%d on node %s" %
- (idx, pri_node))
+ 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))
- # since we *always* want to create this LV, we use the
- # _Create...OnPrimary (which forces the creation), even if we
- # are talking about the secondary node
+ 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:
- if not _CreateBlockDevOnPrimary(self, new_node, instance, new_lv,
- _GetInstanceInfoText(instance)):
- raise errors.OpExecError("Failed to create new LV named '%s' on"
- " node '%s'" %
- (new_lv.logical_id[1], new_node))
+ _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))
- # create new devices on new_node
- if pri_node == dev.logical_id[0]:
- new_logical_id = (pri_node, new_node,
- dev.logical_id[2], dev.logical_id[3], new_minor,
- dev.logical_id[5])
+ 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 self.instance.primary_node == o_node1:
+ p_minor = o_minor1
else:
- new_logical_id = (new_node, pri_node,
- dev.logical_id[2], new_minor, dev.logical_id[4],
- dev.logical_id[5])
- iv_names[idx] = (dev, dev.children, new_logical_id)
+ p_minor = o_minor2
+
+ 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,
- new_logical_id)
+ new_net_id)
new_drbd = objects.Disk(dev_type=constants.LD_DRBD8,
- logical_id=new_logical_id,
- children=dev.children)
- if not _CreateBlockDevOnSecondary(self, new_node, instance,
- new_drbd, False,
- _GetInstanceInfoText(instance)):
- self.cfg.ReleaseDRBDMinors(instance.name)
- raise errors.OpExecError("Failed to create new DRBD on"
- " node '%s'" % new_node)
-
- 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)
- result = self.rpc.call_blockdev_shutdown(old_node, dev)
- if result.failed or not result.data:
- warning("Failed to shutdown drbd for disk/%d on old node" % idx,
- hint="Please cleanup this device manually as soon as possible")
-
- info("detaching primary drbds from the network (=> standalone)")
- done = 0
- for idx, dev in enumerate(instance.disks):
- cfg.SetDiskID(dev, pri_node)
- # set the network part of the physical (unique in bdev terms) id
- # to None, meaning detach from network
- dev.physical_id = (None, None, None, None) + dev.physical_id[4:]
- # and 'find' the device, which will 'fix' it to match the
- # standalone state
- result = self.rpc.call_blockdev_find(pri_node, dev)
- if not result.failed and result.data:
- done += 1
- else:
- warning("Failed to detach drbd disk/%d from network, unusual case" %
- idx)
-
- if not done:
- # no detaches succeeded (very unlikely)
- self.cfg.ReleaseDRBDMinors(instance.name)
- raise errors.OpExecError("Can't detach at least one DRBD from old node")
+ logical_id=new_alone_id,
+ children=dev.children,
+ size=dev.size)
+ try:
+ _CreateSingleBlockDev(self.lu, self.new_node, self.instance, new_drbd,
+ _GetInstanceInfoText(self.instance), False)
+ except errors.GenericError:
+ self.cfg.ReleaseDRBDMinors(self.instance.name)
+ raise
+
+ # 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:
+ 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"))
+
+ 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(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)
- # we can remove now the temp minors as now the new values are
- # written to the config file (and therefore stable)
- self.cfg.ReleaseDRBDMinors(instance.name)
+ 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)")
- for idx, dev in enumerate(instance.disks):
- info("attaching primary drbd for disk/%d to new secondary node" % idx)
- # since the attach is smart, it's enough to 'find' the device,
- # it will automatically activate the network, if the physical_id
- # is correct
- cfg.SetDiskID(dev, pri_node)
- logging.debug("Disk to attach: %s", dev)
- result = self.rpc.call_blockdev_find(pri_node, dev)
- if result.failed or not result.data:
- warning("can't attach drbd disk/%d to new secondary!" % idx,
- "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)
- result.Raise()
- if result.data[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)
- result = self.rpc.call_blockdev_remove(old_node, lv)
- if result.failed or not result.data:
- warning("Can't remove LV on old secondary",
- hint="Cleanup stale volumes by hand")
+ 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:
+ 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"))
+
+ # 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)
+
+ # Check all devices manually
+ self._CheckDevices(self.instance.primary_node, iv_names)
- def Exec(self, feedback_fn):
- """Execute disk replacement.
+ # Step: remove old storage
+ self.lu.LogStep(6, steps_total, "Removing old storage")
+ self._RemoveOldStorage(self.target_node, iv_names)
- This dispatches the disk replacement to the appropriate handler.
- """
- instance = self.instance
+class LURepairNodeStorage(NoHooksLU):
+ """Repairs the volume group on a node.
- # Activate the instance disks if we're replacing them on a down instance
- if instance.status == "down":
- _StartInstanceDisks(self, instance, True)
+ """
+ _OP_REQP = ["node_name"]
+ REQ_BGL = False
- if self.op.mode == constants.REPLACE_DISK_CHG:
- fn = self._ExecD8Secondary
- else:
- fn = self._ExecD8DiskOnly
+ 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
+
+ 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
- ret = fn(feedback_fn)
+ 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)
- # Deactivate the instance disks if we're replacing them on a down instance
- if instance.status == "down":
- _SafeShutdownInstanceDisks(self, instance)
+ # 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)
- return ret
+ 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):
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)
- for node in instance.secondary_nodes:
+ nodenames = list(instance.all_nodes)
+ for node in nodenames:
_CheckNodeOnline(self, node)
self.disk = instance.FindDisk(self.op.disk)
- nodenames = [instance.primary_node] + list(instance.secondary_nodes)
nodeinfo = self.rpc.call_node_info(nodenames, self.cfg.GetVGName(),
instance.hypervisor)
for node in nodenames:
info = nodeinfo[node]
- if info.failed or not info.data:
- raise errors.OpPrereqError("Cannot get current information"
- " from node '%s'" % node)
- vg_free = info.data.get('vg_free', None)
+ info.Raise("Cannot get current information from node %s" % node)
+ vg_free = info.payload.get('vg_free', None)
if not isinstance(vg_free, int):
raise errors.OpPrereqError("Can't compute free disk space on"
" node %s" % node)
"""
instance = self.instance
disk = self.disk
- for node in (instance.secondary_nodes + (instance.primary_node,)):
+ for node in instance.all_nodes:
self.cfg.SetDiskID(disk, node)
result = self.rpc.call_blockdev_grow(node, disk, self.op.amount)
- result.Raise()
- if (not result.data or not isinstance(result.data, (list, tuple)) or
- len(result.data) != 2):
- raise errors.OpExecError("Grow request failed to node %s" % node)
- elif not result.data[0]:
- raise errors.OpExecError("Grow request failed to node %s: %s" %
- (node, result.data[1]))
+ result.Raise("Grow request failed to node %s" % node)
disk.RecordGrow(self.op.amount)
self.cfg.Update(instance)
if self.op.wait_for_sync:
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'")
for name in self.op.instances:
full_name = self.cfg.ExpandInstanceName(name)
if full_name is None:
- raise errors.OpPrereqError("Instance '%s' not known" %
- self.op.instance_name)
+ raise errors.OpPrereqError("Instance '%s' not known" % name)
self.wanted_names.append(full_name)
self.needed_locks[locking.LEVEL_INSTANCE] = self.wanted_names
else:
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)
- dev_pstatus.Raise()
- dev_pstatus = dev_pstatus.data
- 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)
- dev_sstatus.Raise()
- dev_sstatus = dev_sstatus.data
- 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
remote_info = self.rpc.call_instance_info(instance.primary_node,
instance.name,
instance.hypervisor)
- remote_info.Raise()
- remote_info = remote_info.data
+ remote_info.Raise("Error checking node %s" % instance.primary_node)
+ remote_info = remote_info.payload
if remote_info and "state" in remote_info:
remote_state = "up"
else:
remote_state = "down"
else:
remote_state = None
- if instance.status == "down":
- config_state = "down"
- else:
+ if instance.admin_up:
config_state = "up"
+ else:
+ config_state = "down"
disks = [self._ComputeDiskStatus(instance, None, device)
for device in instance.disks]
"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
self.op.hvparams or self.op.beparams):
raise errors.OpPrereqError("No changes submitted")
- utils.CheckBEParams(self.op.beparams)
-
# Disk validation
disk_addremove = 0
for disk_op, disk_dict in self.op.disks:
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_RDONLY, constants.DISK_RDWR):
+ if mode not in constants.DISK_ACCESS_SET:
raise errors.OpPrereqError("Invalid disk access mode '%s'" % mode)
size = disk_dict.get('size', None)
if size is None:
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)
if nic_ip is not None:
- if nic_ip.lower() == "none":
+ if nic_ip.lower() == constants.VALUE_NONE:
nic_dict['ip'] = None
else:
if not utils.IsValidIP(nic_ip):
raise errors.OpPrereqError("Invalid IP address '%s'" % nic_ip)
- # we can only check None bridges and assign the default one
+
nic_bridge = nic_dict.get('bridge', None)
- if nic_bridge is None:
- nic_dict['bridge'] = self.cfg.GetDefBridge()
- # but we can validate MACs
- nic_mac = nic_dict.get('mac', None)
- if nic_mac is not None:
- if self.cfg.IsMacInUse(nic_mac):
- raise errors.OpPrereqError("MAC address %s already in use"
- " in cluster" % nic_mac)
+ 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")
+ elif nic_bridge and nic_bridge.lower() == constants.VALUE_NONE:
+ nic_dict['bridge'] = None
+ elif nic_link and nic_link.lower() == constants.VALUE_NONE:
+ nic_dict['link'] = None
+
+ if nic_op == constants.DDM_ADD:
+ nic_mac = nic_dict.get('mac', None)
+ if nic_mac is None:
+ nic_dict['mac'] = constants.VALUE_AUTO
+
+ if 'mac' in nic_dict:
+ nic_mac = nic_dict['mac']
if nic_mac not in (constants.VALUE_AUTO, constants.VALUE_GENERATE):
if not utils.IsValidMac(nic_mac):
raise errors.OpPrereqError("Invalid MAC address %s" % nic_mac)
+ if nic_op != constants.DDM_ADD and nic_mac == constants.VALUE_AUTO:
+ raise errors.OpPrereqError("'auto' is not a valid MAC address when"
+ " modifying an existing nic")
+
if nic_addremove > 1:
raise errors.OpPrereqError("Only one NIC add or remove operation"
" supported at a time")
args['memory'] = self.be_new[constants.BE_MEMORY]
if constants.BE_VCPUS in self.be_new:
args['vcpus'] = self.be_new[constants.BE_VCPUS]
- # FIXME: readd disk/nic changes
+ # TODO: export disk changes. Note: _BuildInstanceHookEnv* don't export disk
+ # information at all.
+ if self.op.nics:
+ args['nics'] = []
+ nic_override = dict(self.op.nics)
+ c_nicparams = self.cluster.nicparams[constants.PP_DEFAULT]
+ for idx, nic in enumerate(self.instance.nics):
+ if idx in nic_override:
+ this_nic_override = nic_override[idx]
+ else:
+ this_nic_override = {}
+ if 'ip' in this_nic_override:
+ ip = this_nic_override['ip']
+ else:
+ ip = nic.ip
+ if 'mac' in this_nic_override:
+ mac = this_nic_override['mac']
+ else:
+ mac = nic.mac
+ if idx in self.nic_pnew:
+ nicparams = self.nic_pnew[idx]
+ else:
+ nicparams = objects.FillDict(c_nicparams, nic.nicparams)
+ mode = nicparams[constants.NIC_MODE]
+ link = nicparams[constants.NIC_LINK]
+ args['nics'].append((ip, mac, mode, link))
+ if constants.DDM_ADD in nic_override:
+ ip = nic_override[constants.DDM_ADD].get('ip', None)
+ mac = nic_override[constants.DDM_ADD]['mac']
+ nicparams = self.nic_pnew[constants.DDM_ADD]
+ mode = nicparams[constants.NIC_MODE]
+ link = nicparams[constants.NIC_LINK]
+ args['nics'].append((ip, mac, mode, link))
+ elif constants.DDM_REMOVE in nic_override:
+ del args['nics'][-1]
+
env = _BuildInstanceHookEnvByObject(self, self.instance, override=args)
- nl = [self.cfg.GetMasterNode(),
- self.instance.primary_node] + list(self.instance.secondary_nodes)
+ nl = [self.cfg.GetMasterNode()] + list(self.instance.all_nodes)
return env, nl, nl
+ def _GetUpdatedParams(self, old_params, update_dict,
+ default_values, parameter_types):
+ """Return the new params dict for the given params.
+
+ @type old_params: dict
+ @param old_params: old parameters
+ @type update_dict: dict
+ @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
+ @param parameter_types: dict mapping target dict keys to types
+ in constants.ENFORCEABLE_TYPES
+ @rtype: (dict, dict)
+ @return: (new_parameters, filled_parameters)
+
+ """
+ params_copy = copy.deepcopy(old_params)
+ for key, val in update_dict.iteritems():
+ if val == constants.VALUE_DEFAULT:
+ try:
+ del params_copy[key]
+ except KeyError:
+ pass
+ else:
+ params_copy[key] = val
+ utils.ForceDictType(params_copy, parameter_types)
+ params_filled = objects.FillDict(default_values, params_copy)
+ return (params_copy, params_filled)
+
def CheckPrereq(self):
"""Check prerequisites.
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
instance = self.instance = self.cfg.GetInstanceInfo(self.op.instance_name)
+ cluster = self.cluster = self.cfg.GetClusterInfo()
assert self.instance is not None, \
"Cannot retrieve locked instance %s" % self.op.instance_name
- pnode = self.instance.primary_node
- nodelist = [pnode]
- nodelist.extend(instance.secondary_nodes)
+ pnode = instance.primary_node
+ nodelist = list(instance.all_nodes)
# hvparams processing
if self.op.hvparams:
- i_hvdict = copy.deepcopy(instance.hvparams)
- for key, val in self.op.hvparams.iteritems():
- if val == constants.VALUE_DEFAULT:
- try:
- del i_hvdict[key]
- except KeyError:
- pass
- elif val == constants.VALUE_NONE:
- i_hvdict[key] = None
- else:
- i_hvdict[key] = val
- cluster = self.cfg.GetClusterInfo()
- hv_new = cluster.FillDict(cluster.hvparams[instance.hypervisor],
- i_hvdict)
+ i_hvdict, hv_new = self._GetUpdatedParams(
+ instance.hvparams, self.op.hvparams,
+ cluster.hvparams[instance.hypervisor],
+ constants.HVS_PARAMETER_TYPES)
# local check
hypervisor.GetHypervisor(
instance.hypervisor).CheckParameterSyntax(hv_new)
# beparams processing
if self.op.beparams:
- i_bedict = copy.deepcopy(instance.beparams)
- for key, val in self.op.beparams.iteritems():
- if val == constants.VALUE_DEFAULT:
- try:
- del i_bedict[key]
- except KeyError:
- pass
- else:
- i_bedict[key] = val
- cluster = self.cfg.GetClusterInfo()
- be_new = cluster.FillDict(cluster.beparams[constants.BEGR_DEFAULT],
- i_bedict)
+ i_bedict, be_new = self._GetUpdatedParams(
+ instance.beparams, self.op.beparams,
+ cluster.beparams[constants.PP_DEFAULT],
+ constants.BES_PARAMETER_TYPES)
self.be_new = be_new # the new actual values
self.be_inst = i_bedict # the new dict (without defaults)
else:
instance.hypervisor)
nodeinfo = self.rpc.call_node_info(mem_check_list, self.cfg.GetVGName(),
instance.hypervisor)
- if nodeinfo[pnode].failed or not isinstance(nodeinfo[pnode].data, dict):
+ pninfo = nodeinfo[pnode]
+ msg = pninfo.fail_msg
+ if msg:
# Assume the primary node is unreachable and go ahead
- self.warn.append("Can't get info from primary node %s" % pnode)
+ self.warn.append("Can't get info from primary node %s: %s" %
+ (pnode, msg))
+ elif not isinstance(pninfo.payload.get('memory_free', None), int):
+ self.warn.append("Node data from primary node %s doesn't contain"
+ " free memory information" % pnode)
+ elif instance_info.fail_msg:
+ self.warn.append("Can't get instance runtime information: %s" %
+ instance_info.fail_msg)
else:
- if not instance_info.failed and instance_info.data:
- current_mem = instance_info.data['memory']
+ if instance_info.payload:
+ current_mem = int(instance_info.payload['memory'])
else:
# Assume instance not running
# (there is a slight race condition here, but it's not very probable,
# and we have no other way to check)
current_mem = 0
miss_mem = (be_new[constants.BE_MEMORY] - current_mem -
- nodeinfo[pnode].data['memory_free'])
+ pninfo.payload['memory_free'])
if miss_mem > 0:
raise errors.OpPrereqError("This change will prevent the instance"
" from starting, due to %d MB of memory"
" missing on its primary node" % miss_mem)
if be_new[constants.BE_AUTO_BALANCE]:
- for node, nres in instance.secondary_nodes.iteritems():
- if nres.failed or not isinstance(nres.data, dict):
- self.warn.append("Can't get info from secondary node %s" % node)
- elif be_new[constants.BE_MEMORY] > nres.data['memory_free']:
+ for node, nres in nodeinfo.items():
+ if node not in instance.secondary_nodes:
+ continue
+ msg = nres.fail_msg
+ if msg:
+ self.warn.append("Can't get info from secondary node %s: %s" %
+ (node, msg))
+ elif not isinstance(nres.payload.get('memory_free', None), int):
+ self.warn.append("Secondary node %s didn't return free"
+ " memory information" % node)
+ elif be_new[constants.BE_MEMORY] > nres.payload['memory_free']:
self.warn.append("Not enough memory to failover instance to"
" secondary node %s" % node)
# NIC processing
+ self.nic_pnew = {}
+ self.nic_pinst = {}
for nic_op, nic_dict in self.op.nics:
if nic_op == constants.DDM_REMOVE:
if not instance.nics:
raise errors.OpPrereqError("Invalid NIC index %s, valid values"
" are 0 to %d" %
(nic_op, len(instance.nics)))
- nic_bridge = nic_dict.get('bridge', None)
- if nic_bridge is not None:
- if not self.rpc.call_bridges_exist(pnode, [nic_bridge]):
- msg = ("Bridge '%s' doesn't exist on one of"
- " the instance nodes" % nic_bridge)
+ old_nic_params = instance.nics[nic_op].nicparams
+ old_nic_ip = instance.nics[nic_op].ip
+ else:
+ old_nic_params = {}
+ old_nic_ip = None
+
+ update_params_dict = dict([(key, nic_dict[key])
+ for key in constants.NICS_PARAMETERS
+ if key in nic_dict])
+
+ if 'bridge' in nic_dict:
+ update_params_dict[constants.NIC_LINK] = nic_dict['bridge']
+
+ new_nic_params, new_filled_nic_params = \
+ self._GetUpdatedParams(old_nic_params, update_params_dict,
+ cluster.nicparams[constants.PP_DEFAULT],
+ constants.NICS_PARAMETER_TYPES)
+ objects.NIC.CheckParameterSyntax(new_filled_nic_params)
+ self.nic_pinst[nic_op] = new_nic_params
+ self.nic_pnew[nic_op] = new_filled_nic_params
+ new_nic_mode = new_filled_nic_params[constants.NIC_MODE]
+
+ if new_nic_mode == constants.NIC_MODE_BRIDGED:
+ nic_bridge = new_filled_nic_params[constants.NIC_LINK]
+ msg = self.rpc.call_bridges_exist(pnode, [nic_bridge]).fail_msg
+ if msg:
+ msg = "Error checking bridges on node %s: %s" % (pnode, msg)
if self.force:
self.warn.append(msg)
else:
raise errors.OpPrereqError(msg)
+ if new_nic_mode == constants.NIC_MODE_ROUTED:
+ if 'ip' in nic_dict:
+ nic_ip = nic_dict['ip']
+ else:
+ nic_ip = old_nic_ip
+ if nic_ip is None:
+ raise errors.OpPrereqError('Cannot set the nic ip to None'
+ ' on a routed nic')
+ if 'mac' in nic_dict:
+ nic_mac = nic_dict['mac']
+ if nic_mac is None:
+ raise errors.OpPrereqError('Cannot set the nic mac to None')
+ elif nic_mac in (constants.VALUE_AUTO, constants.VALUE_GENERATE):
+ # otherwise generate the mac
+ nic_dict['mac'] = self.cfg.GenerateMAC()
+ else:
+ # or validate/reserve the current one
+ if self.cfg.IsMacInUse(nic_mac):
+ raise errors.OpPrereqError("MAC address %s already in use"
+ " in cluster" % nic_mac)
# DISK processing
if self.op.disks and instance.disk_template == constants.DT_DISKLESS:
" an instance")
ins_l = self.rpc.call_instance_list([pnode], [instance.hypervisor])
ins_l = ins_l[pnode]
- if not type(ins_l) is list:
- raise errors.OpPrereqError("Can't contact node '%s'" % pnode)
- if instance.name in ins_l:
+ msg = ins_l.fail_msg
+ if msg:
+ raise errors.OpPrereqError("Can't contact node %s: %s" %
+ (pnode, msg))
+ if instance.name in ins_l.payload:
raise errors.OpPrereqError("Instance is running, can't remove"
" disks.")
result = []
instance = self.instance
+ cluster = self.cluster
# disk changes
for disk_op, disk_dict in self.op.disks:
if disk_op == constants.DDM_REMOVE:
device_idx = len(instance.disks)
for node, disk in device.ComputeNodeTree(instance.primary_node):
self.cfg.SetDiskID(disk, node)
- result = self.rpc.call_blockdev_remove(node, disk)
- if result.failed or not result.data:
- self.proc.LogWarning("Could not remove disk/%d on node %s,"
- " continuing anyway", device_idx, node)
+ msg = self.rpc.call_blockdev_remove(node, disk).fail_msg
+ if msg:
+ self.LogWarning("Could not remove disk/%d on node %s: %s,"
+ " continuing anyway", device_idx, node, msg)
result.append(("disk/%d" % device_idx, "remove"))
elif disk_op == constants.DDM_ADD:
# add a new disk
disk_idx_base = len(instance.disks)
new_disk = _GenerateDiskTemplate(self,
instance.disk_template,
- instance, instance.primary_node,
+ instance.name, instance.primary_node,
instance.secondary_nodes,
[disk_dict],
file_path,
file_driver,
disk_idx_base)[0]
- new_disk.mode = disk_dict['mode']
instance.disks.append(new_disk)
info = _GetInstanceInfoText(instance)
new_disk.iv_name, instance.name)
# Note: this needs to be kept in sync with _CreateDisks
#HARDCODE
- for secondary_node in instance.secondary_nodes:
- if not _CreateBlockDevOnSecondary(self, secondary_node, instance,
- new_disk, False, info):
+ for node in instance.all_nodes:
+ f_create = node == instance.primary_node
+ try:
+ _CreateBlockDev(self, node, instance, new_disk,
+ f_create, info, f_create)
+ except errors.OpExecError, err:
self.LogWarning("Failed to create volume %s (%s) on"
- " secondary node %s!",
- new_disk.iv_name, new_disk, secondary_node)
- #HARDCODE
- if not _CreateBlockDevOnPrimary(self, instance.primary_node,
- instance, new_disk, info):
- self.LogWarning("Failed to create volume %s on primary!",
- new_disk.iv_name)
+ " node %s: %s",
+ new_disk.iv_name, new_disk, node, err)
result.append(("disk/%d" % disk_idx_base, "add:size=%s,mode=%s" %
(new_disk.size, new_disk.mode)))
else:
del instance.nics[-1]
result.append(("nic.%d" % len(instance.nics), "remove"))
elif nic_op == constants.DDM_ADD:
- # add a new nic
- if 'mac' not in nic_dict:
- mac = constants.VALUE_GENERATE
- else:
- mac = nic_dict['mac']
- if mac in (constants.VALUE_AUTO, constants.VALUE_GENERATE):
- mac = self.cfg.GenerateMAC()
- new_nic = objects.NIC(mac=mac, ip=nic_dict.get('ip', None),
- bridge=nic_dict.get('bridge', None))
+ # mac and bridge should be set, by now
+ mac = nic_dict['mac']
+ ip = nic_dict.get('ip', None)
+ nicparams = self.nic_pinst[constants.DDM_ADD]
+ new_nic = objects.NIC(mac=mac, ip=ip, nicparams=nicparams)
instance.nics.append(new_nic)
result.append(("nic.%d" % (len(instance.nics) - 1),
- "add:mac=%s,ip=%s,bridge=%s" %
- (new_nic.mac, new_nic.ip, new_nic.bridge)))
+ "add:mac=%s,ip=%s,mode=%s,link=%s" %
+ (new_nic.mac, new_nic.ip,
+ self.nic_pnew[constants.DDM_ADD][constants.NIC_MODE],
+ self.nic_pnew[constants.DDM_ADD][constants.NIC_LINK]
+ )))
else:
- # change a given nic
- for key in 'mac', 'ip', 'bridge':
+ for key in 'mac', 'ip':
if key in nic_dict:
setattr(instance.nics[nic_op], key, nic_dict[key])
- result.append(("nic.%s/%d" % (key, nic_op), nic_dict[key]))
+ if nic_op in self.nic_pnew:
+ instance.nics[nic_op].nicparams = self.nic_pnew[nic_op]
+ for key, val in nic_dict.iteritems():
+ result.append(("nic.%s/%d" % (key, nic_op), val))
# hvparams changes
if self.op.hvparams:
- instance.hvparams = self.hv_new
+ instance.hvparams = self.hv_inst
for key, val in self.op.hvparams.iteritems():
result.append(("hv/%s" % key, val))
rpcresult = self.rpc.call_export_list(self.nodes)
result = {}
for node in rpcresult:
- if rpcresult[node].failed:
+ if rpcresult[node].fail_msg:
result[node] = False
else:
- result[node] = rpcresult[node].data
+ result[node] = rpcresult[node].payload
return result
# 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):
if self.dst_node is None:
# This is wrong node name, not a non-locked node
raise errors.OpPrereqError("Wrong node name %s" % self.op.target_node)
- _CheckNodeOnline(self, self.op.target_node)
+ _CheckNodeOnline(self, self.dst_node.name)
+ _CheckNodeNotDrained(self, self.dst_node.name)
# instance disk type verification
for disk in self.instance.disks:
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()
- if not result.data:
- raise errors.OpExecError("Could not shutdown instance %s on node %s" %
- (instance.name, src_node))
+ result.Raise("Could not shutdown instance %s on"
+ " node %s" % (instance.name, src_node))
vgname = self.cfg.GetVGName()
snap_disks = []
+ # set the disks ID correctly since call_instance_start needs the
+ # correct drbd minor to create the symlinks
+ for disk in instance.disks:
+ self.cfg.SetDiskID(disk, src_node)
+
+ # per-disk results
+ dresults = []
try:
- for disk in instance.disks:
- # new_dev_name will be a snapshot of an lvm leaf of the one we passed
- new_dev_name = self.rpc.call_blockdev_snapshot(src_node, disk)
- if new_dev_name.failed or not new_dev_name.data:
- self.LogWarning("Could not snapshot block device %s on node %s",
- disk.logical_id[1], src_node)
+ 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
+ if msg:
+ self.LogWarning("Could not snapshot disk/%s on node %s: %s",
+ idx, src_node, msg)
snap_disks.append(False)
else:
+ disk_id = (vgname, result.payload)
new_dev = objects.Disk(dev_type=constants.LD_LV, size=disk.size,
- logical_id=(vgname, new_dev_name.data),
- physical_id=(vgname, new_dev_name.data),
+ logical_id=disk_id, physical_id=disk_id,
iv_name=disk.iv_name)
snap_disks.append(new_dev)
finally:
- if self.op.shutdown and instance.status == "up":
- result = self.rpc.call_instance_start(src_node, instance, None)
- if result.failed or not result.data:
+ 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:
_ShutdownInstanceDisks(self, instance)
- raise errors.OpExecError("Could not start instance")
+ raise errors.OpExecError("Could not start instance: %s" % msg)
# TODO: check for size
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 result.failed or not result.data:
- self.LogWarning("Could not export block device %s from node %s to"
- " node %s", dev.logical_id[1], src_node,
- dst_node.name)
- result = self.rpc.call_blockdev_remove(src_node, dev)
- if result.failed or not result.data:
- self.LogWarning("Could not remove snapshot block device %s from node"
- " %s", dev.logical_id[1], src_node)
+ msg = result.fail_msg
+ 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)
- if result.failed or not result.data:
- self.LogWarning("Could not finalize export for instance %s on node %s",
- instance.name, dst_node.name)
+ 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)
# on one-node clusters nodelist will be empty after the removal
# if we proceed the backup would be removed because OpQueryExports
# 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].failed:
+ if exportlist[node].fail_msg:
continue
- if instance.name in exportlist[node].data:
- if not self.rpc.call_export_remove(node, instance.name):
+ if iname in exportlist[node].payload:
+ msg = self.rpc.call_export_remove(node, iname).fail_msg
+ if msg:
self.LogWarning("Could not remove older export for instance %s"
- " on node %s", instance.name, node)
+ " on node %s: %s", iname, node, msg)
+ return fin_resu, dresults
class LURemoveExport(NoHooksLU):
fqdn_warn = True
instance_name = self.op.instance_name
- exportlist = self.rpc.call_export_list(self.acquired_locks[
- locking.LEVEL_NODE])
+ locked_nodes = self.acquired_locks[locking.LEVEL_NODE]
+ exportlist = self.rpc.call_export_list(locked_nodes)
found = False
for node in exportlist:
- if exportlist[node].failed:
- self.LogWarning("Failed to query node %s, continuing" % node)
+ msg = exportlist[node].fail_msg
+ if msg:
+ self.LogWarning("Failed to query node %s (continuing): %s", node, msg)
continue
- if instance_name in exportlist[node].data:
+ if instance_name in exportlist[node].payload:
found = True
result = self.rpc.call_export_remove(node, instance_name)
- if result.failed or not result.data:
+ msg = result.fail_msg
+ if msg:
logging.error("Could not remove export for instance %s"
- " on node %s", instance_name, node)
+ " on node %s: %s", instance_name, node, msg)
if fqdn_warn and not found:
feedback_fn("Export not found. If trying to remove an export belonging"
raise errors.OpExecError("Error during master delay test")
if self.op.on_nodes:
result = self.rpc.call_test_delay(self.op.on_nodes, self.op.duration)
- if not result:
- raise errors.OpExecError("Complete failure from rpc call")
for node, node_result in result.items():
- node_result.Raise()
- if not node_result.data:
- raise errors.OpExecError("Failure during rpc call to node %s,"
- " result: %s" % (node, node_result.data))
+ node_result.Raise("Failure during rpc call to node %s" % node)
class IAllocator(object):
"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 = {
- "version": 1,
+ "version": constants.IALLOCATOR_VERSION,
"cluster_name": cfg.GetClusterName(),
"cluster_tags": list(cluster_info.GetTags()),
- "enable_hypervisors": list(cluster_info.enabled_hypervisors),
+ "enabled_hypervisors": list(cluster_info.enabled_hypervisors),
# we don't have job IDs
}
iinfo = cfg.GetAllInstancesInfo().values()
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)
- for nname in node_list:
+ 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)
- node_data[nname].Raise()
- if not isinstance(node_data[nname].data, dict):
- raise errors.OpExecError("Can't get data for node %s" % nname)
- remote_info = node_data[nname].data
- for attr in ['memory_total', 'memory_free', 'memory_dom0',
- 'vg_size', 'vg_free', 'cpu_total']:
- if attr not in remote_info:
- raise errors.OpExecError("Node '%s' didn't return attribute '%s'" %
- (nname, attr))
- try:
- remote_info[attr] = int(remote_info[attr])
- except ValueError, err:
- raise errors.OpExecError("Node '%s' returned invalid value for '%s':"
- " %s" % (nname, attr, str(err)))
- # compute memory used by primary instances
- i_p_mem = i_p_up_mem = 0
- for iinfo, beinfo in i_list:
- if iinfo.primary_node == nname:
- i_p_mem += beinfo[constants.BE_MEMORY]
- if iinfo.name not in node_iinfo[nname]:
- i_used_mem = 0
- else:
- i_used_mem = int(node_iinfo[nname][iinfo.name]['memory'])
- i_mem_diff = beinfo[constants.BE_MEMORY] - i_used_mem
- remote_info['memory_free'] -= max(0, i_mem_diff)
-
- if iinfo.status == "up":
- i_p_up_mem += beinfo[constants.BE_MEMORY]
-
- # compute memory used by instances
pnr = {
"tags": list(ninfo.GetTags()),
- "total_memory": remote_info['memory_total'],
- "reserved_memory": remote_info['memory_dom0'],
- "free_memory": remote_info['memory_free'],
- "i_pri_memory": i_p_mem,
- "i_pri_up_memory": i_p_up_mem,
- "total_disk": remote_info['vg_size'],
- "free_disk": remote_info['vg_free'],
"primary_ip": ninfo.primary_ip,
"secondary_ip": ninfo.secondary_ip,
- "total_cpus": remote_info['cpu_total'],
"offline": ninfo.offline,
+ "drained": ninfo.drained,
+ "master_candidate": ninfo.master_candidate,
}
+
+ 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:
+ raise errors.OpExecError("Node '%s' didn't return attribute"
+ " '%s'" % (nname, attr))
+ if not isinstance(remote_info[attr], int):
+ raise errors.OpExecError("Node '%s' returned invalid value"
+ " for '%s': %s" %
+ (nname, attr, remote_info[attr]))
+ # compute memory used by primary instances
+ i_p_mem = i_p_up_mem = 0
+ for iinfo, beinfo in i_list:
+ if iinfo.primary_node == nname:
+ i_p_mem += beinfo[constants.BE_MEMORY]
+ if iinfo.name not in node_iinfo[nname].payload:
+ i_used_mem = 0
+ else:
+ i_used_mem = int(node_iinfo[nname].payload[iinfo.name]['memory'])
+ i_mem_diff = beinfo[constants.BE_MEMORY] - i_used_mem
+ remote_info['memory_free'] -= max(0, i_mem_diff)
+
+ if iinfo.admin_up:
+ i_p_up_mem += beinfo[constants.BE_MEMORY]
+
+ # compute memory used by instances
+ pnr_dyn = {
+ "total_memory": remote_info['memory_total'],
+ "reserved_memory": remote_info['memory_dom0'],
+ "free_memory": remote_info['memory_free'],
+ "total_disk": remote_info['vg_size'],
+ "free_disk": remote_info['vg_free'],
+ "total_cpus": remote_info['cpu_total'],
+ "i_pri_memory": i_p_mem,
+ "i_pri_up_memory": i_p_up_mem,
+ }
+ pnr.update(pnr_dyn)
+
node_results[nname] = pnr
data["nodes"] = node_results
# instance data
instance_data = {}
for iinfo, beinfo in i_list:
- nic_data = [{"mac": n.mac, "ip": n.ip, "bridge": n.bridge}
- for n in iinfo.nics]
+ nic_data = []
+ for nic in iinfo.nics:
+ filled_params = objects.FillDict(
+ cluster_info.nicparams[constants.PP_DEFAULT],
+ nic.nicparams)
+ nic_dict = {"mac": nic.mac,
+ "ip": nic.ip,
+ "mode": filled_params[constants.NIC_MODE],
+ "link": filled_params[constants.NIC_LINK],
+ }
+ if filled_params[constants.NIC_MODE] == constants.NIC_MODE_BRIDGED:
+ nic_dict["bridge"] = filled_params[constants.NIC_LINK]
+ nic_data.append(nic_dict)
pir = {
"tags": list(iinfo.GetTags()),
- "should_run": iinfo.status == "up",
+ "admin_up": iinfo.admin_up,
"vcpus": beinfo[constants.BE_VCPUS],
"memory": beinfo[constants.BE_MEMORY],
"os": iinfo.os,
"nodes": [iinfo.primary_node] + list(iinfo.secondary_nodes),
"nics": nic_data,
- "disks": [{"size": dsk.size, "mode": "w"} for dsk in iinfo.disks],
+ "disks": [{"size": dsk.size, "mode": dsk.mode} for dsk in iinfo.disks],
"disk_template": iinfo.disk_template,
"hypervisor": iinfo.hypervisor,
}
+ pir["disk_space_total"] = _ComputeDiskSize(iinfo.disk_template,
+ pir["disks"])
instance_data[iinfo.name] = pir
data["instances"] = instance_data
"""
data = self.in_data
- if len(self.disks) != 2:
- raise errors.OpExecError("Only two-disk configurations supported")
disk_space = _ComputeDiskSize(self.disk_template, self.disks)
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
-
- result = call_fn(self.lu.cfg.GetMasterNode(), name, self.in_text)
- result.Raise()
-
- if not isinstance(result.data, (list, tuple)) or len(result.data) != 4:
- raise errors.OpExecError("Invalid result from master iallocator runner")
+ call_fn = self.rpc.call_iallocator_runner
- rcode, stdout, stderr, fail = result.data
+ result = call_fn(self.cfg.GetMasterNode(), name, self.in_text)
+ result.Raise("Failure while running the iallocator script")
- if rcode == constants.IARUN_NOTFOUND:
- raise errors.OpExecError("Can't find allocator '%s'" % name)
- elif rcode == constants.IARUN_FAILURE:
- raise errors.OpExecError("Instance allocator call failed: %s,"
- " output: %s" % (fail, stdout+stderr))
- self.out_text = stdout
+ self.out_text = result.payload
if validate:
self._ValidateResult()
" 'nics' parameter")
if not isinstance(self.op.disks, list):
raise errors.OpPrereqError("Invalid parameter 'disks'")
- if len(self.op.disks) != 2:
- raise errors.OpPrereqError("Only two-disk configurations supported")
for row in self.op.disks:
if (not isinstance(row, dict) or
"size" not in row or
row["mode"] not in ['r', 'w']):
raise errors.OpPrereqError("Invalid contents of the"
" 'disks' parameter")
- if self.op.hypervisor is None:
+ if not hasattr(self.op, "hypervisor") or self.op.hypervisor is None:
self.op.hypervisor = self.cfg.GetHypervisorType()
elif self.op.mode == constants.IALLOCATOR_MODE_RELOC:
if not hasattr(self.op, "name"):
"""
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),
projects / ganeti-local / blobdiff