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
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.
"""
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
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
@type nics: list
@param nics: list of tuples (ip, bridge, mac) 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:
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
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
@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],
+ '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)
def _CheckInstanceBridgesExist(lu, instance):
- """Check that the brigdes needed by an instance exist.
+ """Check that the bridges needed by an instance exist.
"""
- # check bridges existance
+ # check bridges existence
brlist = [nic.bridge for nic in instance.nics]
result = lu.rpc.call_bridges_exist(instance.primary_node, brlist)
result.Raise()
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()
self.share_locks = dict(((i, 1) for i in locking.LEVELS))
def _VerifyNode(self, nodeinfo, file_list, local_cksum,
- node_result, feedback_fn, master_files):
+ node_result, feedback_fn, 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 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
# compares ganeti version
local_version = constants.PROTOCOL_VERSION
remote_version = node_result.get('version', None)
- if not remote_version:
+ if not (remote_version and isinstance(remote_version, (list, tuple)) and
+ len(remote_version) == 2):
feedback_fn(" - ERROR: connection to %s failed" % (node))
return True
- if local_version != remote_version:
- feedback_fn(" - ERROR: sw version mismatch: master %s, node(%s) %s" %
- (local_version, node, remote_version))
+ if local_version != remote_version[0]:
+ feedback_fn(" - ERROR: incompatible protocol versions: master %s,"
+ " node %s %s" % (local_version, node, remote_version[0]))
return True
- # checks vg existance and size > 20G
+ # node seems compatible, we can actually try to look into its results
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))
+
+ # full package version
+ if constants.RELEASE_VERSION != remote_version[1]:
+ feedback_fn(" - WARNING: software version mismatch: master %s,"
+ " node %s %s" %
+ (constants.RELEASE_VERSION, node, remote_version[1]))
+
+ # checks vg existence and size > 20G
+ if vg_name is not None:
+ vglist = node_result.get(constants.NV_VGLIST, None)
+ if not vglist:
+ feedback_fn(" - ERROR: unable to check volume groups on node %s." %
+ (node,))
bad = True
+ else:
+ vgstatus = utils.CheckVolumeGroupSize(vglist, vg_name,
+ constants.MIN_VG_SIZE)
+ if vgstatus:
+ feedback_fn(" - ERROR: %s on node %s" % (vgstatus, node))
+ bad = True
# checks config file checksum
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)
+ feedback_fn(" - ERROR: file '%s' should not exist on non master"
+ " candidates (and the file is outdated)" % file_name)
else:
# all good, except non-master/non-must have combination
if not node_is_mc and not must_have_file:
if hv_result is not None:
feedback_fn(" - ERROR: hypervisor %s verify failure: '%s'" %
(hv_name, hv_result))
+
+ # check used drbd list
+ if vg_name is not None:
+ used_minors = node_result.get(constants.NV_DRBDLIST, [])
+ if not isinstance(used_minors, (tuple, list)):
+ feedback_fn(" - ERROR: cannot parse drbd status file: %s" %
+ str(used_minors))
+ else:
+ for minor, (iname, must_exist) in drbd_map.items():
+ if minor not in used_minors and must_exist:
+ feedback_fn(" - ERROR: drbd minor %d of instance %s is"
+ " not active" % (minor, iname))
+ bad = True
+ for minor in used_minors:
+ if minor not in drbd_map:
+ feedback_fn(" - ERROR: unallocated drbd minor %d is in use" %
+ minor)
+ bad = True
+
return bad
def _VerifyInstance(self, instance, instanceconfig, node_vol_is,
(volume, node))
bad = True
- if not instanceconfig.status == 'down':
+ if instanceconfig.admin_up:
if ((node_current not in node_instance or
not instance in node_instance[node_current]) and
node_current not in n_offline):
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"
+ feedback_fn(" - ERROR: not enough memory on node %s to accommodate"
" failovers should node %s fail" % (node, prinode))
bad = True
return bad
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):
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 = {}
feedback_fn("* Gathering data (%d nodes)" % len(nodelist))
node_verify_param = {
constants.NV_FILELIST: file_names,
- constants.NV_NODELIST: nodelist,
+ constants.NV_NODELIST: [node.name for node in nodeinfo
+ if not node.offline],
constants.NV_HYPERVISOR: hypervisors,
constants.NV_NODENETTEST: [(node.name, node.primary_ip,
- node.secondary_ip) for node in nodeinfo],
- constants.NV_LVLIST: vg_name,
+ node.secondary_ip) for node in nodeinfo
+ if not node.offline],
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()
+
for node_i in nodeinfo:
node = node_i.name
nresult = all_nvinfo[node].data
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))
bad = True
continue
+ node_drbd = {}
+ for minor, instance in all_drbd_map[node].items():
+ if instance not in instanceinfo:
+ feedback_fn(" - ERROR: ghost instance '%s' in temporary DRBD map" %
+ instance)
+ # ghost instance should not be running, but otherwise we
+ # don't give double warnings (both ghost instance and
+ # unallocated minor in use)
+ node_drbd[minor] = (instance, False)
+ else:
+ instance = instanceinfo[instance]
+ node_drbd[minor] = (instance.name, instance.admin_up)
result = self._VerifyNode(node_i, file_names, local_checksums,
- nresult, feedback_fn, master_files)
+ nresult, feedback_fn, master_files,
+ node_drbd, vg_name)
bad = bad or result
lvdata = nresult.get(constants.NV_LVLIST, "Missing LV data")
- if isinstance(lvdata, basestring):
+ if vg_name is None:
+ node_volume[node] = {}
+ elif isinstance(lvdata, basestring):
feedback_fn(" - ERROR: LVM problem on node %s: %s" %
- (node, lvdata.encode('string_escape')))
+ (node, utils.SafeEncode(lvdata)))
bad = True
node_volume[node] = {}
elif not isinstance(lvdata, dict):
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,))
+ # FIXME: devise a free space model for file based instances as well
+ if vg_name is not None:
+ if (constants.NV_VGLIST not in nresult or
+ vg_name not in nresult[constants.NV_VGLIST]):
+ feedback_fn(" - ERROR: node %s didn't return data for the"
+ " volume group '%s' - it is either missing or broken" %
+ (node, vg_name))
+ bad = True
+ continue
+ node_info[node]["dfree"] = int(nresult[constants.NV_VGLIST][vg_name])
+ except (ValueError, KeyError):
+ feedback_fn(" - ERROR: invalid nodeinfo value returned"
+ " from node %s" % (node,))
bad = True
continue
for instance in instancelist:
feedback_fn("* Verifying instance %s" % instance)
- inst_config = self.cfg.GetInstanceInfo(instance)
+ inst_config = instanceinfo[instance]
result = self._VerifyInstance(instance, inst_config, node_volume,
node_instance, feedback_fn, n_offline)
bad = bad or result
if n_offline:
feedback_fn(" - NOTICE: %d offline node(s) found." % len(n_offline))
+ if n_drained:
+ feedback_fn(" - NOTICE: %d drained node(s) found." % len(n_drained))
+
return not 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.
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)
node_lvs = self.rpc.call_volume_list(nodes, vg_name)
- to_act = set()
for node in nodes:
# node_volume
lvs = node_lvs[node]
if isinstance(lvs, basestring):
logging.warning("Error enumerating LVs on node %s: %s", node, lvs)
res_nlvm[node] = lvs
+ continue
elif not isinstance(lvs, dict):
logging.warning("Connection to node %s failed or invalid data"
" returned", node)
return result
+class LURepairDiskSizes(NoHooksLU):
+ """Verifies the cluster disks sizes.
+
+ """
+ _OP_REQP = ["instances"]
+ REQ_BGL = False
+
+ def ExpandNames(self):
+
+ if not isinstance(self.op.instances, list):
+ raise errors.OpPrereqError("Invalid argument type 'instances'")
+
+ if self.op.instances:
+ self.wanted_names = []
+ for name in self.op.instances:
+ full_name = self.cfg.ExpandInstanceName(name)
+ if full_name is None:
+ raise errors.OpPrereqError("Instance '%s' not known" % name)
+ self.wanted_names.append(full_name)
+ self.needed_locks = {
+ locking.LEVEL_NODE: [],
+ locking.LEVEL_INSTANCE: self.wanted_names,
+ }
+ self.recalculate_locks[locking.LEVEL_NODE] = constants.LOCKS_REPLACE
+ else:
+ self.wanted_names = None
+ self.needed_locks = {
+ locking.LEVEL_NODE: locking.ALL_SET,
+ locking.LEVEL_INSTANCE: locking.ALL_SET,
+ }
+ self.share_locks = dict(((i, 1) for i in locking.LEVELS))
+
+ def DeclareLocks(self, level):
+ if level == locking.LEVEL_NODE and self.wanted_names is not None:
+ self._LockInstancesNodes(primary_only=True)
+
+ def CheckPrereq(self):
+ """Check prerequisites.
+
+ This only checks the optional instance list against the existing names.
+
+ """
+ if self.wanted_names is None:
+ self.wanted_names = self.acquired_locks[locking.LEVEL_INSTANCE]
+
+ self.wanted_instances = [self.cfg.GetInstanceInfo(name) for name
+ in self.wanted_names]
+
+ def _EnsureChildSizes(self, disk):
+ """Ensure children of the disk have the needed disk size.
+
+ This is valid mainly for DRBD8 and fixes an issue where the
+ children have smaller disk size.
+
+ @param disk: an L{ganeti.objects.Disk} object
+
+ """
+ if disk.dev_type == constants.LD_DRBD8:
+ assert disk.children, "Empty children for DRBD8?"
+ fchild = disk.children[0]
+ mismatch = fchild.size < disk.size
+ if mismatch:
+ self.LogInfo("Child disk has size %d, parent %d, fixing",
+ fchild.size, disk.size)
+ fchild.size = disk.size
+
+ # and we recurse on this child only, not on the metadev
+ return self._EnsureChildSizes(fchild) or mismatch
+ else:
+ return False
+
+ def Exec(self, feedback_fn):
+ """Verify the size of cluster disks.
+
+ """
+ # TODO: check child disks too
+ # TODO: check differences in size between primary/secondary nodes
+ per_node_disks = {}
+ for instance in self.wanted_instances:
+ pnode = instance.primary_node
+ if pnode not in per_node_disks:
+ per_node_disks[pnode] = []
+ for idx, disk in enumerate(instance.disks):
+ per_node_disks[pnode].append((instance, idx, disk))
+
+ changed = []
+ for node, dskl in per_node_disks.items():
+ newl = [v[2].Copy() for v in dskl]
+ for dsk in newl:
+ self.cfg.SetDiskID(dsk, node)
+ result = self.rpc.call_blockdev_getsizes(node, newl)
+ if result.failed:
+ self.LogWarning("Failure in blockdev_getsizes call to node"
+ " %s, ignoring", node)
+ continue
+ if len(result.data) != len(dskl):
+ self.LogWarning("Invalid result from node %s, ignoring node results",
+ node)
+ continue
+ for ((instance, idx, disk), size) in zip(dskl, result.data):
+ if size is None:
+ self.LogWarning("Disk %d of instance %s did not return size"
+ " information, ignoring", idx, instance.name)
+ continue
+ if not isinstance(size, (int, long)):
+ self.LogWarning("Disk %d of instance %s did not return valid"
+ " size information, ignoring", idx, instance.name)
+ continue
+ size = size >> 20
+ if size != disk.size:
+ self.LogInfo("Disk %d of instance %s has mismatched size,"
+ " correcting: recorded %d, actual %d", idx,
+ instance.name, disk.size, size)
+ disk.size = size
+ self.cfg.Update(instance)
+ changed.append((instance.name, idx, size))
+ if self._EnsureChildSizes(disk):
+ self.cfg.Update(instance)
+ changed.append((instance.name, idx, disk.size))
+ return changed
+
+
class LURenameCluster(LogicalUnit):
"""Rename the cluster.
constants.SSH_KNOWN_HOSTS_FILE, to_node)
finally:
- result = self.rpc.call_node_start_master(master, False)
+ result = self.rpc.call_node_start_master(master, False, False)
if result.failed or not result.data:
self.LogWarning("Could not re-enable the master role on"
" the master, please restart manually.")
@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:
self.cluster = cluster = self.cfg.GetClusterInfo()
# validate beparams changes
if self.op.beparams:
- utils.CheckBEParams(self.op.beparams)
+ utils.ForceDictType(self.op.beparams, constants.BES_PARAMETER_TYPES)
self.new_beparams = cluster.FillDict(
cluster.beparams[constants.BEGR_DEFAULT], self.op.beparams)
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" % 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")
self.cluster.beparams[constants.BEGR_DEFAULT] = self.new_beparams
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)
+
+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())
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
continue
rstats = rstats.data
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)
rem_time = "no time estimate"
lu.proc.LogInfo("- device %s: %5.2f%% done, %s" %
(instance.disks[i].iv_name, perc_done, 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
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.RemoteFailMsg()
+ 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])
+ result = result and (not rstats.payload[idx])
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
+ @return: a dictionary with osnames as keys and as value another map, with
nodes as keys and list of OS objects as values, eg::
{"debian-etch": {"node1": [<object>,...],
"""
all_os = {}
+ # 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].failed]
for node_name, nr in rlist.iteritems():
if nr.failed or not nr.data:
continue
# 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:
+ for nname in good_nodes:
all_os[os_obj.name][nname] = []
all_os[os_obj.name][node_name].append(os_obj)
return all_os
"""Compute the list of OSes.
"""
- node_list = self.acquired_locks[locking.LEVEL_NODE]
- node_data = self.rpc.call_os_diagnose(node_list)
+ valid_nodes = [node for node in self.cfg.GetOnlineNodeList()]
+ node_data = self.rpc.call_os_diagnose(valid_nodes)
if node_data == False:
raise errors.OpExecError("Can't gather the list of OSes")
- pol = self._DiagnoseByOS(node_list, node_data)
+ pol = self._DiagnoseByOS(valid_nodes, node_data)
output = []
for os_name, os_data in pol.iteritems():
row = []
- 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
"""Logical unit for querying nodes.
"""
- _OP_REQP = ["output_fields", "names"]
+ _OP_REQP = ["output_fields", "names", "use_locking"]
REQ_BGL = False
_FIELDS_DYNAMIC = utils.FieldSet(
"dtotal", "dfree",
"mtotal", "mnode", "mfree",
"bootid",
- "ctotal",
+ "ctotal", "cnodes", "csockets",
)
_FIELDS_STATIC = utils.FieldSet(
"master_candidate",
"master",
"offline",
+ "drained",
+ "role",
)
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())
"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] = {}
inst_fields = frozenset(("pinst_cnt", "pinst_list",
"sinst_cnt", "sinst_list"))
if inst_fields & frozenset(self.op.output_fields):
- instancelist = self.cfg.GetInstanceList()
+ inst_data = self.cfg.GetAllInstancesInfo()
- for instance_name in instancelist:
- inst = self.cfg.GetInstanceInfo(instance_name)
+ for instance_name, inst in inst_data.items():
if inst.primary_node in node_to_primary:
node_to_primary[inst.primary_node].add(inst.name)
for secnode in inst.secondary_nodes:
val = node.name == master_node
elif field == "offline":
val = node.offline
+ elif field == "drained":
+ val = node.drained
elif self._FIELDS_DYNAMIC.Matches(field):
val = live_data[node.name].get(field, None)
+ elif field == "role":
+ if node.name == master_node:
+ val = "M"
+ elif node.master_candidate:
+ val = "C"
+ elif node.drained:
+ val = "D"
+ elif node.offline:
+ val = "O"
+ else:
+ val = "R"
else:
raise errors.ParameterError(field)
node_output.append(val)
- 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()
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")
+ msg = result.RemoteFailMsg()
+ if msg:
+ raise errors.OpExecError("Cannot transfer ssh keys to the"
+ " new node: %s" % msg)
# 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,
" for remote verification" % verifier)
if result[verifier].data['nodelist']:
for failed in result[verifier].data['nodelist']:
- feedback_fn("ssh/hostname verification failed %s -> %s" %
- (verifier, result[verifier]['nodelist'][failed]))
+ feedback_fn("ssh/hostname verification failed"
+ " (checking from %s): %s" %
+ (verifier, result[verifier].data['nodelist'][failed]))
raise errors.OpExecError("ssh/hostname verification failed.")
# Distribute updated /etc/hosts and known_hosts to all nodes,
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:
+ enabled_hypervisors = self.cfg.GetClusterInfo().enabled_hypervisors
+ if constants.HTS_COPY_VNC_PASSWORD.intersection(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]:
if self.op.readd:
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.RemoteFailMsg()
+ if msg:
+ self.LogWarning("Node failed to demote itself from master"
+ " candidate status: %s" % msg)
else:
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.RemoteFailMsg()
+ 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.RemoteFailMsg()
+ 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
"master": cluster.master_node,
"default_hypervisor": cluster.default_hypervisor,
"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,
"candidate_pool_size": cluster.candidate_pool_size,
+ "default_bridge": cluster.default_bridge,
+ "master_netdev": cluster.master_netdev,
+ "volume_group_name": cluster.volume_group_name,
+ "file_storage_dir": cluster.file_storage_dir,
+ "tags": list(cluster.GetTags()),
}
return result
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.RemoteFailMsg()
+ 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.RemoteFailMsg()
+ 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)
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.RemoteFailMsg()
+ 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):
"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 = cluster.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()
+ if not remote_info.data:
+ _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.RemoteFailMsg()
+ 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)
+ msg = result.RemoteFailMsg()
+ if msg:
+ raise errors.OpExecError("Could not reboot instance: %s" % msg)
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)
+ msg = result.RemoteFailMsg()
+ if msg:
+ raise errors.OpExecError("Could not shutdown instance for"
+ " full reboot: %s" % msg)
_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.RemoteFailMsg()
+ 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.RemoteFailMsg()
+ 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()
+ if remote_info.data:
raise errors.OpPrereqError("Instance '%s' is running on the node %s" %
(self.op.instance_name,
instance.primary_node))
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:
+ msg = result.RemoteFailMsg()
+ if msg:
raise errors.OpExecError("Could not install OS for instance %s"
- " on node %s" %
- (inst.name, inst.primary_node))
+ " on node %s: %s" %
+ (inst.name, inst.primary_node, msg))
finally:
_ShutdownInstanceDisks(self, inst)
"""
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,
try:
result = self.rpc.call_instance_run_rename(inst.primary_node, inst,
old_name)
- if result.failed or not result.data:
+ msg = result.RemoteFailMsg()
+ 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.RemoteFailMsg()
+ 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
_FIELDS_STATIC = utils.FieldSet(*["name", "os", "pnode", "snodes",
- "admin_state", "admin_ram",
+ "admin_state",
"disk_template", "ip", "mac", "bridge",
"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)",
+ r"(disk)\.(size)/([0-9]+)",
+ r"(disk)\.(sizes)", "disk_usage",
+ r"(nic)\.(mac|ip|bridge)/([0-9]+)",
+ r"(nic)\.(macs|ips|bridges)",
+ r"(disk|nic)\.(count)",
"serial_no", "hypervisor", "hvparams",] +
["hv/%s" % name
for name in constants.HVS_PARAMETERS] +
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:
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 == "bridge":
- val = instance.nics[0].bridge
+ if instance.nics:
+ val = instance.nics[0].bridge
+ 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":
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
+ # check bridge existence
brlist = [nic.bridge for nic in instance.nics]
result = self.rpc.call_bridges_exist(target_node, brlist)
result.Raise()
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.RemoteFailMsg()
+ 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.RemoteFailMsg()
+ 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()
+ self.needed_locks[locking.LEVEL_NODE] = []
+ self.recalculate_locks[locking.LEVEL_NODE] = constants.LOCKS_REPLACE
+ def DeclareLocks(self, level):
+ if level == locking.LEVEL_NODE:
+ self._LockInstancesNodes()
-def _CreateBlockDevOnSecondary(lu, node, instance, device, force, info):
- """Create a tree of block devices on a secondary node.
+ def BuildHooksEnv(self):
+ """Build hooks env.
+
+ This runs on master, primary and secondary nodes of the instance.
+
+ """
+ env = _BuildInstanceHookEnvByObject(self, self.instance)
+ env["MIGRATE_LIVE"] = self.op.live
+ env["MIGRATE_CLEANUP"] = self.op.cleanup
+ nl = [self.cfg.GetMasterNode()] + list(self.instance.secondary_nodes)
+ return env, nl, nl
+
+ def CheckPrereq(self):
+ """Check prerequisites.
+
+ This checks that the instance is in the cluster.
+
+ """
+ instance = self.cfg.GetInstanceInfo(
+ self.cfg.ExpandInstanceName(self.op.instance_name))
+ if instance is None:
+ raise errors.OpPrereqError("Instance '%s' not known" %
+ self.op.instance_name)
+
+ 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 existence
+ brlist = [nic.bridge for nic in instance.nics]
+ result = self.rpc.call_bridges_exist(target_node, brlist)
+ if result.failed or not result.data:
+ raise errors.OpPrereqError("One or more target bridges %s does not"
+ " exist on destination node '%s'" %
+ (brlist, target_node))
+
+ if not self.op.cleanup:
+ _CheckNodeNotDrained(self, target_node)
+ result = self.rpc.call_instance_migratable(instance.primary_node,
+ instance)
+ msg = result.RemoteFailMsg()
+ if msg:
+ raise errors.OpPrereqError("Can't migrate: %s - please use failover" %
+ msg)
+
+ 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():
+ msg = nres.RemoteFailMsg()
+ if msg:
+ raise errors.OpExecError("Cannot resync disks on node %s: %s" %
+ (node, msg))
+ 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)
+ msg = result.RemoteFailMsg()
+ if msg:
+ raise errors.OpExecError("Cannot change disk to secondary on node %s,"
+ " error %s" % (node, msg))
+
+ 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():
+ msg = nres.RemoteFailMsg()
+ if msg:
+ raise errors.OpExecError("Cannot disconnect disks node %s,"
+ " error %s" % (node, msg))
+
+ 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():
+ msg = nres.RemoteFailMsg()
+ if msg:
+ raise errors.OpExecError("Cannot change disks config on node %s,"
+ " error: %s" % (node, msg))
+
+ 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()
+ if not isinstance(result.data, list):
+ raise errors.OpExecError("Can't contact node '%s'" % node)
+
+ runningon_source = instance.name in ins_l[source_node].data
+ runningon_target = instance.name in ins_l[target_node].data
+
+ 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.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.RemoteFailMsg()
+ 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.RemoteFailMsg()
+ 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.RemoteFailMsg()
+ 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.op.live)
+ msg = result.RemoteFailMsg()
+ 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.RemoteFailMsg()
+ 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.
+
+ """
+ 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.op.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 = True
+ force_create = True
+
if device.children:
for child in device.children:
- if not _CreateBlockDevOnSecondary(lu, node, instance,
- child, force, info):
- return False
+ _CreateBlockDev(lu, node, instance, child, force_create,
+ info, force_open)
- if not force:
- return True
+ 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)
- 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
+ result = lu.rpc.call_blockdev_create(node, device, device.size,
+ instance.name, force_open, info)
+ msg = result.RemoteFailMsg()
+ if msg:
+ raise errors.OpExecError("Can't create block device %s on"
+ " node %s for instance %s: %s" %
+ (device, node, instance.name, msg))
if device.physical_id is None:
- device.physical_id = new_id
- return True
+ device.physical_id = result.payload
def _GenerateUniqueNames(lu, exts):
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)
"""
info = _GetInstanceInfoText(instance)
+ pnode = instance.primary_node
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)
+ result = lu.rpc.call_file_storage_dir_create(pnode, file_storage_dir)
if result.failed or not result.data:
- logging.error("Could not connect to node '%s'", instance.primary_node)
- return False
+ raise errors.OpExecError("Could not connect to node '%s'" % pnode)
if not result.data[0]:
- logging.error("Failed to create directory '%s'", file_storage_dir)
- return False
+ raise errors.OpExecError("Failed to create directory '%s'" %
+ file_storage_dir)
# Note: this needs to be kept in sync with adding of disks in
# LUSetInstanceParams
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 instance.all_nodes:
+ f_create = node == pnode
+ _CreateBlockDev(lu, node, instance, device, f_create, info, f_create)
def _RemoveDisks(lu, instance):
"""
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):
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).RemoteFailMsg()
+ 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])
file_storage_dir)
if result.failed or not result.data:
logging.error("Could not remove directory '%s'", file_storage_dir)
- result = False
+ 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
+ msg = info.RemoteFailMsg()
+ if msg:
+ raise errors.OpPrereqError("Hypervisor parameter validation"
+ " failed on node %s: %s" % (node, msg))
class LUCreateInstance(LogicalUnit):
",".join(enabled_hvs)))
# check hypervisor parameter syntax (locally)
-
+ utils.ForceDictType(self.op.hvparams, constants.HVS_PARAMETER_TYPES)
filled_hvp = cluster.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)
+ utils.ForceDictType(self.op.beparams, constants.BES_PARAMETER_TYPES)
self.be_full = cluster.FillDict(cluster.beparams[constants.BEGR_DEFAULT],
self.op.beparams)
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())
+ bridge = nic.get("bridge", None)
+ if bridge is None:
+ bridge = self.cfg.GetDefBridge()
self.nics.append(objects.NIC(mac=mac, ip=nic_ip, bridge=bridge))
# disk checks/pre-build
"""
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],
+ 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
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
# os verification
result = self.rpc.call_os_get(pnode.name, self.op.os_type)
result.Raise()
- if not isinstance(result.data, objects.OS):
+ if not isinstance(result.data, objects.OS) or not result.data:
raise errors.OpPrereqError("OS '%s' not in supported os list for"
" primary node" % self.op.os_type)
self.be_full[constants.BE_MEMORY],
self.op.hypervisor)
- if self.op.start:
- self.instance_status = 'up'
- else:
- self.instance_status = 'down'
-
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 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:
+ msg = result.RemoteFailMsg()
+ if msg:
raise errors.OpExecError("Could not add os for instance %s"
- " on node %s" %
- (instance, pnode_name))
+ " on node %s: %s" %
+ (instance, pnode_name, msg))
elif self.op.mode == constants.INSTANCE_IMPORT:
feedback_fn("* running the instance OS import scripts...")
% 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)
+ msg = result.RemoteFailMsg()
+ if msg:
+ raise errors.OpExecError("Could not start instance: %s" % msg)
class LUConnectConsole(NoHooksLU):
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)
_OP_REQP = ["instance_name", "mode", "disks"]
REQ_BGL = False
- def ExpandNames(self):
- self._ExpandAndLockInstance()
-
+ def CheckArguments(self):
if not hasattr(self.op, "remote_node"):
self.op.remote_node = None
-
- ia_name = getattr(self.op, "iallocator", None)
- if ia_name is not None:
- if self.op.remote_node is not None:
+ 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")
+
+ 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)
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:
"Cannot retrieve locked instance %s" % self.op.instance_name
self.instance = instance
- if instance.disk_template not in constants.DTS_NET_MIRROR:
- raise errors.OpPrereqError("Instance's disk layout is not"
- " network mirrored.")
+ if instance.disk_template != constants.DT_DRBD8:
+ raise errors.OpPrereqError("Can only run replace disks for DRBD8-based"
+ " instances")
if len(instance.secondary_nodes) != 1:
raise errors.OpPrereqError("The instance has a strange layout,"
self.sec_node = instance.secondary_nodes[0]
- ia_name = getattr(self.op, "iallocator", None)
- if ia_name is not None:
+ if self.op.iallocator is not None:
self._RunAllocator()
remote_node = self.op.remote_node
raise errors.OpPrereqError("The specified node is the primary node of"
" the instance.")
elif remote_node == self.sec_node:
- if self.op.mode == constants.REPLACE_DISK_SEC:
- # this is for DRBD8, where we can't execute the same mode of
- # replacement as for drbd7 (no different port allocated)
- raise errors.OpPrereqError("Same secondary given, cannot execute"
- " replacement")
- if instance.disk_template == constants.DT_DRBD8:
- if (self.op.mode == constants.REPLACE_DISK_ALL and
- remote_node is not None):
- # switch to replace secondary mode
- self.op.mode = constants.REPLACE_DISK_SEC
-
- if self.op.mode == constants.REPLACE_DISK_ALL:
- raise errors.OpPrereqError("Template 'drbd' only allows primary or"
- " secondary disk replacement, not"
- " both at once")
- elif self.op.mode == constants.REPLACE_DISK_PRI:
- if remote_node is not None:
- raise errors.OpPrereqError("Template 'drbd' does not allow changing"
- " the secondary while doing a primary"
- " node disk replacement")
- self.tgt_node = instance.primary_node
- self.oth_node = instance.secondary_nodes[0]
- _CheckNodeOnline(self, self.tgt_node)
- _CheckNodeOnline(self, self.oth_node)
- elif self.op.mode == constants.REPLACE_DISK_SEC:
- self.new_node = remote_node # this can be None, in which case
- # we don't change the secondary
- self.tgt_node = instance.secondary_nodes[0]
- self.oth_node = instance.primary_node
- _CheckNodeOnline(self, self.oth_node)
- if self.new_node is not None:
- _CheckNodeOnline(self, self.new_node)
- else:
- _CheckNodeOnline(self, self.tgt_node)
- else:
- raise errors.ProgrammerError("Unhandled disk replace mode")
+ raise errors.OpPrereqError("The specified node is already the"
+ " secondary node of the instance.")
+
+ if self.op.mode == constants.REPLACE_DISK_PRI:
+ n1 = self.tgt_node = instance.primary_node
+ n2 = self.oth_node = self.sec_node
+ elif self.op.mode == constants.REPLACE_DISK_SEC:
+ n1 = self.tgt_node = self.sec_node
+ n2 = self.oth_node = instance.primary_node
+ elif self.op.mode == constants.REPLACE_DISK_CHG:
+ n1 = self.new_node = remote_node
+ n2 = self.oth_node = instance.primary_node
+ self.tgt_node = self.sec_node
+ _CheckNodeNotDrained(self, remote_node)
+ else:
+ raise errors.ProgrammerError("Unhandled disk replace mode")
+
+ _CheckNodeOnline(self, n1)
+ _CheckNodeOnline(self, n2)
if not self.op.disks:
self.op.disks = range(len(instance.disks))
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))
+ result = self.rpc.call_blockdev_find(node, dev)
+ msg = result.RemoteFailMsg()
+ if not msg and not result.payload:
+ msg = "disk not found"
+ if msg:
+ raise errors.OpExecError("Can't find disk/%d on node %s: %s" %
+ (idx, node, msg))
# Step: check other node consistency
self.proc.LogStep(2, steps_total, "check peer consistency")
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
+ # we pass force_create=True to force the LVM creation
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))
+ _CreateBlockDev(self, tgt_node, instance, new_lv, True,
+ _GetInstanceInfoText(instance), False)
# Step: for each lv, detach+rename*2+attach
self.proc.LogStep(4, steps_total, "change drbd configuration")
# build the rename list based on what LVs exist on the node
rlist = []
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
+ result = self.rpc.call_blockdev_find(tgt_node, to_ren)
+ if not result.RemoteFailMsg() and result.payload:
+ # 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_addchildren(tgt_node, dev, new_lvs)
if result.failed or not result.data:
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")
+ msg = self.rpc.call_blockdev_remove(tgt_node, new_lv).RemoteFailMsg()
+ if msg:
+ warning("Can't rollback device %s: %s", dev, msg,
+ hint="cleanup manually the unused logical volumes")
raise errors.OpExecError("Can't add local storage to drbd")
dev.children = new_lvs
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]:
+ msg = result.RemoteFailMsg()
+ if not msg and not result.payload:
+ msg = "disk not found"
+ if msg:
+ raise errors.OpExecError("Can't find DRBD device %s: %s" %
+ (name, msg))
+ if result.payload[5]:
raise errors.OpExecError("DRBD device %s is degraded!" % name)
# Step: remove old storage
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")
+ msg = self.rpc.call_blockdev_remove(tgt_node, lv).RemoteFailMsg()
+ if msg:
+ warning("Can't remove old LV: %s" % msg,
+ hint="manually remove unused LVs")
continue
def _ExecD8Secondary(self, feedback_fn):
old_node = self.tgt_node
new_node = self.new_node
pri_node = instance.primary_node
+ nodes_ip = {
+ old_node: self.cfg.GetNodeInfo(old_node).secondary_ip,
+ new_node: self.cfg.GetNodeInfo(new_node).secondary_ip,
+ pri_node: self.cfg.GetNodeInfo(pri_node).secondary_ip,
+ }
# Step: check device activation
self.proc.LogStep(1, steps_total, "check device existence")
info("checking 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))
+ msg = result.RemoteFailMsg()
+ if not msg and not result.payload:
+ msg = "disk not found"
+ if msg:
+ raise errors.OpExecError("Can't find disk/%d on node %s: %s" %
+ (idx, pri_node, msg))
# Step: check other node consistency
self.proc.LogStep(2, steps_total, "check peer consistency")
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
+ # 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, new_node, instance, new_lv, True,
+ _GetInstanceInfoText(instance), False)
# Step 4: dbrd minors and drbd setups changes
# after this, we must manually remove the drbd minors on both the
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])
+ # create new devices on new_node; note that we create two IDs:
+ # one without port, so the drbd will be activated without
+ # networking information on the new node at this stage, and one
+ # with network, for the latter activation in step 4
+ (o_node1, o_node2, o_port, o_minor1, o_minor2, o_secret) = dev.logical_id
+ if pri_node == o_node1:
+ 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 = (pri_node, new_node, None, p_minor, new_minor, o_secret)
+ new_net_id = (pri_node, new_node, o_port, p_minor, new_minor, o_secret)
+
+ 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)):
+ logical_id=new_alone_id,
+ children=dev.children,
+ size=dev.size)
+ try:
+ _CreateSingleBlockDev(self, new_node, instance, new_drbd,
+ _GetInstanceInfoText(instance), False)
+ except errors.GenericError:
self.cfg.ReleaseDRBDMinors(instance.name)
- raise errors.OpExecError("Failed to create new DRBD on"
- " node '%s'" % new_node)
+ raise
for idx, dev in enumerate(instance.disks):
# we have new devices, shutdown the drbd on the old secondary
info("shutting down drbd for disk/%d on old node" % idx)
cfg.SetDiskID(dev, old_node)
- 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,
+ msg = self.rpc.call_blockdev_shutdown(old_node, dev).RemoteFailMsg()
+ if msg:
+ warning("Failed to shutdown drbd for disk/%d on old node: %s" %
+ (idx, msg),
hint="Please cleanup this device manually as soon as possible")
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)
+ result = self.rpc.call_drbd_disconnect_net([pri_node], nodes_ip,
+ instance.disks)[pri_node]
- if not done:
- # no detaches succeeded (very unlikely)
+ msg = result.RemoteFailMsg()
+ if msg:
+ # detaches didn't succeed (unlikely)
self.cfg.ReleaseDRBDMinors(instance.name)
- raise errors.OpExecError("Can't detach at least one DRBD from old node")
+ 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
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)
# 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")
+ result = self.rpc.call_drbd_attach_net([pri_node, new_node], nodes_ip,
+ instance.disks, instance.name,
+ False)
+ for to_node, to_result in result.items():
+ msg = to_result.RemoteFailMsg()
+ if msg:
+ warning("can't attach drbd disks on node %s: %s", to_node, msg,
+ hint="please do a gnt-instance info to see the"
+ " status of disks")
# this can fail as the old devices are degraded and _WaitForSync
# does a combined result over all disks, so we don't check its
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]:
+ msg = result.RemoteFailMsg()
+ if not msg and not result.payload:
+ msg = "disk not found"
+ if msg:
+ raise errors.OpExecError("Can't find DRBD device disk/%d: %s" %
+ (idx, msg))
+ if result.payload[5]:
raise errors.OpExecError("DRBD device disk/%d is degraded!" % idx)
self.proc.LogStep(6, steps_total, "removing old storage")
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",
+ msg = self.rpc.call_blockdev_remove(old_node, lv).RemoteFailMsg()
+ if msg:
+ warning("Can't remove LV on old secondary: %s", msg,
hint="Cleanup stale volumes by hand")
def Exec(self, feedback_fn):
instance = self.instance
# Activate the instance disks if we're replacing them on a down instance
- if instance.status == "down":
+ if not instance.admin_up:
_StartInstanceDisks(self, instance, True)
- if instance.disk_template == constants.DT_DRBD8:
- if self.op.remote_node is None:
- fn = self._ExecD8DiskOnly
- else:
- fn = self._ExecD8Secondary
+ if self.op.mode == constants.REPLACE_DISK_CHG:
+ fn = self._ExecD8Secondary
else:
- raise errors.ProgrammerError("Unhandled disk replacement case")
+ fn = self._ExecD8DiskOnly
ret = fn(feedback_fn)
# Deactivate the instance disks if we're replacing them on a down instance
- if instance.status == "down":
+ if not instance.admin_up:
_SafeShutdownInstanceDisks(self, instance)
return ret
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:
"""
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]:
+ msg = result.RemoteFailMsg()
+ if msg:
raise errors.OpExecError("Grow request failed to node %s: %s" %
- (node, result.data[1]))
+ (node, msg))
disk.RecordGrow(self.op.amount)
self.cfg.Update(instance)
if self.op.wait_for_sync:
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:
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
+ if dev_pstatus.offline:
+ dev_pstatus = None
+ else:
+ msg = dev_pstatus.RemoteFailMsg()
+ if msg:
+ raise errors.OpExecError("Can't compute disk status for %s: %s" %
+ (instance.name, msg))
+ dev_pstatus = dev_pstatus.payload
else:
dev_pstatus = None
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
+ if dev_sstatus.offline:
+ dev_sstatus = None
+ else:
+ msg = dev_sstatus.RemoteFailMsg()
+ if msg:
+ raise errors.OpExecError("Can't compute disk status for %s: %s" %
+ (instance.name, msg))
+ dev_sstatus = dev_sstatus.payload
else:
dev_sstatus = None
"sstatus": dev_sstatus,
"children": dev_children,
"mode": dev.mode,
+ "size": dev.size,
}
return data
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]
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:
raise errors.OpPrereqError("Invalid disk index")
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:
# 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)
+
+ if nic_op == constants.DDM_ADD:
+ nic_bridge = nic_dict.get('bridge', None)
+ if nic_bridge is None:
+ nic_dict['bridge'] = self.cfg.GetDefBridge()
+ 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)
+ 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 'bridge' in this_nic_override:
+ bridge = this_nic_override['bridge']
+ else:
+ bridge = nic.bridge
+ if 'mac' in this_nic_override:
+ mac = this_nic_override['mac']
+ else:
+ mac = nic.mac
+ args['nics'].append((ip, bridge, mac))
+ if constants.DDM_ADD in nic_override:
+ ip = nic_override[constants.DDM_ADD].get('ip', None)
+ bridge = nic_override[constants.DDM_ADD]['bridge']
+ mac = nic_override[constants.DDM_ADD]['mac']
+ args['nics'].append((ip, bridge, mac))
+ 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 CheckPrereq(self):
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)
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:
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()
+ utils.ForceDictType(i_hvdict, constants.HVS_PARAMETER_TYPES)
hv_new = cluster.FillDict(cluster.hvparams[instance.hypervisor],
i_hvdict)
# local check
else:
i_bedict[key] = val
cluster = self.cfg.GetClusterInfo()
+ utils.ForceDictType(i_bedict, constants.BES_PARAMETER_TYPES)
be_new = cluster.FillDict(cluster.beparams[constants.BEGR_DEFAULT],
i_bedict)
self.be_new = be_new # the new actual values
self.warn.append("Can't get info from primary node %s" % pnode)
else:
if not instance_info.failed and instance_info.data:
- current_mem = instance_info.data['memory']
+ current_mem = int(instance_info.data['memory'])
else:
# Assume instance not running
# (there is a slight race condition here, but it's not very probable,
" missing on its primary node" % miss_mem)
if be_new[constants.BE_AUTO_BALANCE]:
- for node, nres in instance.secondary_nodes.iteritems():
+ for node, nres in nodeinfo.iteritems():
+ if node not in instance.secondary_nodes:
+ continue
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']:
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 'bridge' in nic_dict:
+ nic_bridge = nic_dict['bridge']
+ if nic_bridge is None:
+ raise errors.OpPrereqError('Cannot set the nic bridge to 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)
self.warn.append(msg)
else:
raise errors.OpPrereqError(msg)
+ 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:
+ if ins_l.failed or not isinstance(ins_l.data, list):
raise errors.OpPrereqError("Can't contact node '%s'" % pnode)
- if instance.name in ins_l:
+ if instance.name in ins_l.data:
raise errors.OpPrereqError("Instance is running, can't remove"
" disks.")
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).RemoteFailMsg()
+ 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()
+ # mac and bridge should be set, by now
+ mac = nic_dict['mac']
+ bridge = nic_dict['bridge']
new_nic = objects.NIC(mac=mac, ip=nic_dict.get('ip', None),
- bridge=nic_dict.get('bridge', None))
+ bridge=bridge)
instance.nics.append(new_nic)
result.append(("nic.%d" % (len(instance.nics) - 1),
"add:mac=%s,ip=%s,bridge=%s" %
# 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))
# 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:
if self.op.shutdown:
# shutdown the instance, but not the disks
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))
+ msg = result.RemoteFailMsg()
+ if msg:
+ raise errors.OpExecError("Could not shutdown instance %s on"
+ " node %s: %s" %
+ (instance.name, src_node, msg))
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:
+ for idx, disk in enumerate(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)
+ self.LogWarning("Could not snapshot disk/%d on node %s",
+ idx, src_node)
snap_disks.append(False)
else:
new_dev = objects.Disk(dev_type=constants.LD_LV, size=disk.size,
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:
+ result = self.rpc.call_instance_start(src_node, instance, None, None)
+ msg = result.RemoteFailMsg()
+ 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
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)
+ self.LogWarning("Could not export disk/%d from node %s to"
+ " node %s", idx, src_node, dst_node.name)
+ dresults.append(False)
+ else:
+ dresults.append(True)
+ msg = self.rpc.call_blockdev_remove(src_node, dev).RemoteFailMsg()
+ if msg:
+ self.LogWarning("Could not remove snapshot for disk/%d from node"
+ " %s: %s", idx, src_node, msg)
+ else:
+ dresults.append(False)
result = self.rpc.call_finalize_export(dst_node.name, instance, snap_disks)
+ fin_resu = True
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 = False
nodelist = self.cfg.GetNodeList()
nodelist.remove(dst_node.name)
if not self.rpc.call_export_remove(node, instance.name):
self.LogWarning("Could not remove older export for instance %s"
" on node %s", instance.name, node)
+ return fin_resu, dresults
class LURemoveExport(NoHooksLU):
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()
hypervisor_name)
node_iinfo = self.lu.rpc.call_all_instances_info(node_list,
cluster_info.enabled_hypervisors)
- for nname in node_list:
+ 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()
+ if not isinstance(nresult.data, dict):
+ raise errors.OpExecError("Can't get data for node %s" % nname)
+ remote_info = nresult.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, 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].data:
+ i_used_mem = 0
+ else:
+ i_used_mem = int(node_iinfo[nname].data[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
for n in iinfo.nics]
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)
"""
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()
" '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"):
projects / ganeti-local / blobdiff