Revision f380d53c lib/cmdlib/__init__.py
b/lib/cmdlib/__init__.py | ||
---|---|---|
63 | 63 |
_ComputeNewInstanceViolations, _GetUpdatedParams, _CheckOSParams, \ |
64 | 64 |
_CheckHVParams, _AdjustCandidatePool, _CheckNodePVs, \ |
65 | 65 |
_ComputeIPolicyInstanceViolation, _AnnotateDiskParams, _SupportsOob, \ |
66 |
_ComputeIPolicySpecViolation |
|
66 |
_ComputeIPolicySpecViolation, _GetDefaultIAllocator, \ |
|
67 |
_CheckInstancesNodeGroups, _LoadNodeEvacResult, _MapInstanceDisksToNodes, \ |
|
68 |
_CheckInstanceNodeGroups |
|
67 | 69 |
|
68 | 70 |
from ganeti.cmdlib.cluster import LUClusterActivateMasterIp, \ |
69 | 71 |
LUClusterDeactivateMasterIp, LUClusterConfigQuery, LUClusterDestroy, \ |
... | ... | |
71 | 73 |
LUClusterRename, LUClusterRepairDiskSizes, LUClusterSetParams, \ |
72 | 74 |
LUClusterVerify, LUClusterVerifyConfig, LUClusterVerifyGroup, \ |
73 | 75 |
LUClusterVerifyDisks |
76 |
from ganeti.cmdlib.group import LUGroupAdd, LUGroupAssignNodes, \ |
|
77 |
_GroupQuery, LUGroupQuery, LUGroupSetParams, LUGroupRemove, \ |
|
78 |
LUGroupRename, LUGroupEvacuate, LUGroupVerifyDisks |
|
74 | 79 |
from ganeti.cmdlib.tags import LUTagsGet, LUTagsSearch, LUTagsSet, LUTagsDel |
75 | 80 |
from ganeti.cmdlib.network import LUNetworkAdd, LUNetworkRemove, \ |
76 | 81 |
LUNetworkSetParams, _NetworkQuery, LUNetworkQuery, LUNetworkConnect, \ |
... | ... | |
91 | 96 |
])) |
92 | 97 |
|
93 | 98 |
|
94 |
def _CheckInstancesNodeGroups(cfg, instances, owned_groups, owned_nodes, |
|
95 |
cur_group_uuid): |
|
96 |
"""Checks if node groups for locked instances are still correct. |
|
97 |
|
|
98 |
@type cfg: L{config.ConfigWriter} |
|
99 |
@param cfg: Cluster configuration |
|
100 |
@type instances: dict; string as key, L{objects.Instance} as value |
|
101 |
@param instances: Dictionary, instance name as key, instance object as value |
|
102 |
@type owned_groups: iterable of string |
|
103 |
@param owned_groups: List of owned groups |
|
104 |
@type owned_nodes: iterable of string |
|
105 |
@param owned_nodes: List of owned nodes |
|
106 |
@type cur_group_uuid: string or None |
|
107 |
@param cur_group_uuid: Optional group UUID to check against instance's groups |
|
108 |
|
|
109 |
""" |
|
110 |
for (name, inst) in instances.items(): |
|
111 |
assert owned_nodes.issuperset(inst.all_nodes), \ |
|
112 |
"Instance %s's nodes changed while we kept the lock" % name |
|
113 |
|
|
114 |
inst_groups = _CheckInstanceNodeGroups(cfg, name, owned_groups) |
|
115 |
|
|
116 |
assert cur_group_uuid is None or cur_group_uuid in inst_groups, \ |
|
117 |
"Instance %s has no node in group %s" % (name, cur_group_uuid) |
|
118 |
|
|
119 |
|
|
120 |
def _CheckInstanceNodeGroups(cfg, instance_name, owned_groups, |
|
121 |
primary_only=False): |
|
122 |
"""Checks if the owned node groups are still correct for an instance. |
|
123 |
|
|
124 |
@type cfg: L{config.ConfigWriter} |
|
125 |
@param cfg: The cluster configuration |
|
126 |
@type instance_name: string |
|
127 |
@param instance_name: Instance name |
|
128 |
@type owned_groups: set or frozenset |
|
129 |
@param owned_groups: List of currently owned node groups |
|
130 |
@type primary_only: boolean |
|
131 |
@param primary_only: Whether to check node groups for only the primary node |
|
132 |
|
|
133 |
""" |
|
134 |
inst_groups = cfg.GetInstanceNodeGroups(instance_name, primary_only) |
|
135 |
|
|
136 |
if not owned_groups.issuperset(inst_groups): |
|
137 |
raise errors.OpPrereqError("Instance %s's node groups changed since" |
|
138 |
" locks were acquired, current groups are" |
|
139 |
" are '%s', owning groups '%s'; retry the" |
|
140 |
" operation" % |
|
141 |
(instance_name, |
|
142 |
utils.CommaJoin(inst_groups), |
|
143 |
utils.CommaJoin(owned_groups)), |
|
144 |
errors.ECODE_STATE) |
|
145 |
|
|
146 |
return inst_groups |
|
147 |
|
|
148 |
|
|
149 | 99 |
def _IsExclusiveStorageEnabledNode(cfg, node): |
150 | 100 |
"""Whether exclusive_storage is in effect for the given node. |
151 | 101 |
|
... | ... | |
241 | 191 |
assert not lu.glm.is_owned(level), "No locks should be owned" |
242 | 192 |
|
243 | 193 |
|
244 |
def _MapInstanceDisksToNodes(instances): |
|
245 |
"""Creates a map from (node, volume) to instance name. |
|
246 |
|
|
247 |
@type instances: list of L{objects.Instance} |
|
248 |
@rtype: dict; tuple of (node name, volume name) as key, instance name as value |
|
249 |
|
|
250 |
""" |
|
251 |
return dict(((node, vol), inst.name) |
|
252 |
for inst in instances |
|
253 |
for (node, vols) in inst.MapLVsByNode().items() |
|
254 |
for vol in vols) |
|
255 |
|
|
256 |
|
|
257 | 194 |
def _CheckOutputFields(static, dynamic, selected): |
258 | 195 |
"""Checks whether all selected fields are valid. |
259 | 196 |
|
... | ... | |
836 | 773 |
" iallocator", errors.ECODE_INVAL) |
837 | 774 |
|
838 | 775 |
|
839 |
def _GetDefaultIAllocator(cfg, ialloc): |
|
840 |
"""Decides on which iallocator to use. |
|
841 |
|
|
842 |
@type cfg: L{config.ConfigWriter} |
|
843 |
@param cfg: Cluster configuration object |
|
844 |
@type ialloc: string or None |
|
845 |
@param ialloc: Iallocator specified in opcode |
|
846 |
@rtype: string |
|
847 |
@return: Iallocator name |
|
848 |
|
|
849 |
""" |
|
850 |
if not ialloc: |
|
851 |
# Use default iallocator |
|
852 |
ialloc = cfg.GetDefaultIAllocator() |
|
853 |
|
|
854 |
if not ialloc: |
|
855 |
raise errors.OpPrereqError("No iallocator was specified, neither in the" |
|
856 |
" opcode nor as a cluster-wide default", |
|
857 |
errors.ECODE_INVAL) |
|
858 |
|
|
859 |
return ialloc |
|
860 |
|
|
861 |
|
|
862 | 776 |
def _CheckHostnameSane(lu, name): |
863 | 777 |
"""Ensures that a given hostname resolves to a 'sane' name. |
864 | 778 |
|
... | ... | |
880 | 794 |
return hostname |
881 | 795 |
|
882 | 796 |
|
883 |
class LUGroupVerifyDisks(NoHooksLU): |
|
884 |
"""Verifies the status of all disks in a node group. |
|
885 |
|
|
886 |
""" |
|
887 |
REQ_BGL = False |
|
888 |
|
|
889 |
def ExpandNames(self): |
|
890 |
# Raises errors.OpPrereqError on its own if group can't be found |
|
891 |
self.group_uuid = self.cfg.LookupNodeGroup(self.op.group_name) |
|
892 |
|
|
893 |
self.share_locks = _ShareAll() |
|
894 |
self.needed_locks = { |
|
895 |
locking.LEVEL_INSTANCE: [], |
|
896 |
locking.LEVEL_NODEGROUP: [], |
|
897 |
locking.LEVEL_NODE: [], |
|
898 |
|
|
899 |
# This opcode is acquires all node locks in a group. LUClusterVerifyDisks |
|
900 |
# starts one instance of this opcode for every group, which means all |
|
901 |
# nodes will be locked for a short amount of time, so it's better to |
|
902 |
# acquire the node allocation lock as well. |
|
903 |
locking.LEVEL_NODE_ALLOC: locking.ALL_SET, |
|
904 |
} |
|
905 |
|
|
906 |
def DeclareLocks(self, level): |
|
907 |
if level == locking.LEVEL_INSTANCE: |
|
908 |
assert not self.needed_locks[locking.LEVEL_INSTANCE] |
|
909 |
|
|
910 |
# Lock instances optimistically, needs verification once node and group |
|
911 |
# locks have been acquired |
|
912 |
self.needed_locks[locking.LEVEL_INSTANCE] = \ |
|
913 |
self.cfg.GetNodeGroupInstances(self.group_uuid) |
|
914 |
|
|
915 |
elif level == locking.LEVEL_NODEGROUP: |
|
916 |
assert not self.needed_locks[locking.LEVEL_NODEGROUP] |
|
917 |
|
|
918 |
self.needed_locks[locking.LEVEL_NODEGROUP] = \ |
|
919 |
set([self.group_uuid] + |
|
920 |
# Lock all groups used by instances optimistically; this requires |
|
921 |
# going via the node before it's locked, requiring verification |
|
922 |
# later on |
|
923 |
[group_uuid |
|
924 |
for instance_name in self.owned_locks(locking.LEVEL_INSTANCE) |
|
925 |
for group_uuid in self.cfg.GetInstanceNodeGroups(instance_name)]) |
|
926 |
|
|
927 |
elif level == locking.LEVEL_NODE: |
|
928 |
# This will only lock the nodes in the group to be verified which contain |
|
929 |
# actual instances |
|
930 |
self.recalculate_locks[locking.LEVEL_NODE] = constants.LOCKS_APPEND |
|
931 |
self._LockInstancesNodes() |
|
932 |
|
|
933 |
# Lock all nodes in group to be verified |
|
934 |
assert self.group_uuid in self.owned_locks(locking.LEVEL_NODEGROUP) |
|
935 |
member_nodes = self.cfg.GetNodeGroup(self.group_uuid).members |
|
936 |
self.needed_locks[locking.LEVEL_NODE].extend(member_nodes) |
|
937 |
|
|
938 |
def CheckPrereq(self): |
|
939 |
owned_instances = frozenset(self.owned_locks(locking.LEVEL_INSTANCE)) |
|
940 |
owned_groups = frozenset(self.owned_locks(locking.LEVEL_NODEGROUP)) |
|
941 |
owned_nodes = frozenset(self.owned_locks(locking.LEVEL_NODE)) |
|
942 |
|
|
943 |
assert self.group_uuid in owned_groups |
|
944 |
|
|
945 |
# Check if locked instances are still correct |
|
946 |
_CheckNodeGroupInstances(self.cfg, self.group_uuid, owned_instances) |
|
947 |
|
|
948 |
# Get instance information |
|
949 |
self.instances = dict(self.cfg.GetMultiInstanceInfo(owned_instances)) |
|
950 |
|
|
951 |
# Check if node groups for locked instances are still correct |
|
952 |
_CheckInstancesNodeGroups(self.cfg, self.instances, |
|
953 |
owned_groups, owned_nodes, self.group_uuid) |
|
954 |
|
|
955 |
def Exec(self, feedback_fn): |
|
956 |
"""Verify integrity of cluster disks. |
|
957 |
|
|
958 |
@rtype: tuple of three items |
|
959 |
@return: a tuple of (dict of node-to-node_error, list of instances |
|
960 |
which need activate-disks, dict of instance: (node, volume) for |
|
961 |
missing volumes |
|
962 |
|
|
963 |
""" |
|
964 |
res_nodes = {} |
|
965 |
res_instances = set() |
|
966 |
res_missing = {} |
|
967 |
|
|
968 |
nv_dict = _MapInstanceDisksToNodes( |
|
969 |
[inst for inst in self.instances.values() |
|
970 |
if inst.admin_state == constants.ADMINST_UP]) |
|
971 |
|
|
972 |
if nv_dict: |
|
973 |
nodes = utils.NiceSort(set(self.owned_locks(locking.LEVEL_NODE)) & |
|
974 |
set(self.cfg.GetVmCapableNodeList())) |
|
975 |
|
|
976 |
node_lvs = self.rpc.call_lv_list(nodes, []) |
|
977 |
|
|
978 |
for (node, node_res) in node_lvs.items(): |
|
979 |
if node_res.offline: |
|
980 |
continue |
|
981 |
|
|
982 |
msg = node_res.fail_msg |
|
983 |
if msg: |
|
984 |
logging.warning("Error enumerating LVs on node %s: %s", node, msg) |
|
985 |
res_nodes[node] = msg |
|
986 |
continue |
|
987 |
|
|
988 |
for lv_name, (_, _, lv_online) in node_res.payload.items(): |
|
989 |
inst = nv_dict.pop((node, lv_name), None) |
|
990 |
if not (lv_online or inst is None): |
|
991 |
res_instances.add(inst) |
|
992 |
|
|
993 |
# any leftover items in nv_dict are missing LVs, let's arrange the data |
|
994 |
# better |
|
995 |
for key, inst in nv_dict.iteritems(): |
|
996 |
res_missing.setdefault(inst, []).append(list(key)) |
|
997 |
|
|
998 |
return (res_nodes, list(res_instances), res_missing) |
|
999 |
|
|
1000 |
|
|
1001 | 797 |
def _WaitForSync(lu, instance, disks=None, oneshot=False): |
1002 | 798 |
"""Sleep and poll for an instance's disk to sync. |
1003 | 799 |
|
... | ... | |
8607 | 8403 |
return ResultWithJobs(jobs) |
8608 | 8404 |
|
8609 | 8405 |
|
8610 |
def _SetOpEarlyRelease(early_release, op): |
|
8611 |
"""Sets C{early_release} flag on opcodes if available. |
|
8612 |
|
|
8613 |
""" |
|
8614 |
try: |
|
8615 |
op.early_release = early_release |
|
8616 |
except AttributeError: |
|
8617 |
assert not isinstance(op, opcodes.OpInstanceReplaceDisks) |
|
8618 |
|
|
8619 |
return op |
|
8620 |
|
|
8621 |
|
|
8622 |
def _NodeEvacDest(use_nodes, group, nodes): |
|
8623 |
"""Returns group or nodes depending on caller's choice. |
|
8624 |
|
|
8625 |
""" |
|
8626 |
if use_nodes: |
|
8627 |
return utils.CommaJoin(nodes) |
|
8628 |
else: |
|
8629 |
return group |
|
8630 |
|
|
8631 |
|
|
8632 |
def _LoadNodeEvacResult(lu, alloc_result, early_release, use_nodes): |
|
8633 |
"""Unpacks the result of change-group and node-evacuate iallocator requests. |
|
8634 |
|
|
8635 |
Iallocator modes L{constants.IALLOCATOR_MODE_NODE_EVAC} and |
|
8636 |
L{constants.IALLOCATOR_MODE_CHG_GROUP}. |
|
8637 |
|
|
8638 |
@type lu: L{LogicalUnit} |
|
8639 |
@param lu: Logical unit instance |
|
8640 |
@type alloc_result: tuple/list |
|
8641 |
@param alloc_result: Result from iallocator |
|
8642 |
@type early_release: bool |
|
8643 |
@param early_release: Whether to release locks early if possible |
|
8644 |
@type use_nodes: bool |
|
8645 |
@param use_nodes: Whether to display node names instead of groups |
|
8646 |
|
|
8647 |
""" |
|
8648 |
(moved, failed, jobs) = alloc_result |
|
8649 |
|
|
8650 |
if failed: |
|
8651 |
failreason = utils.CommaJoin("%s (%s)" % (name, reason) |
|
8652 |
for (name, reason) in failed) |
|
8653 |
lu.LogWarning("Unable to evacuate instances %s", failreason) |
|
8654 |
raise errors.OpExecError("Unable to evacuate instances %s" % failreason) |
|
8655 |
|
|
8656 |
if moved: |
|
8657 |
lu.LogInfo("Instances to be moved: %s", |
|
8658 |
utils.CommaJoin("%s (to %s)" % |
|
8659 |
(name, _NodeEvacDest(use_nodes, group, nodes)) |
|
8660 |
for (name, group, nodes) in moved)) |
|
8661 |
|
|
8662 |
return [map(compat.partial(_SetOpEarlyRelease, early_release), |
|
8663 |
map(opcodes.OpCode.LoadOpCode, ops)) |
|
8664 |
for ops in jobs] |
|
8665 |
|
|
8666 |
|
|
8667 | 8406 |
def _DiskSizeInBytesToMebibytes(lu, size): |
8668 | 8407 |
"""Converts a disk size in bytes to mebibytes. |
8669 | 8408 |
|
... | ... | |
11087 | 10826 |
" Domain Name.") |
11088 | 10827 |
|
11089 | 10828 |
|
11090 |
class LUGroupAdd(LogicalUnit): |
|
11091 |
"""Logical unit for creating node groups. |
|
11092 |
|
|
11093 |
""" |
|
11094 |
HPATH = "group-add" |
|
11095 |
HTYPE = constants.HTYPE_GROUP |
|
11096 |
REQ_BGL = False |
|
11097 |
|
|
11098 |
def ExpandNames(self): |
|
11099 |
# We need the new group's UUID here so that we can create and acquire the |
|
11100 |
# corresponding lock. Later, in Exec(), we'll indicate to cfg.AddNodeGroup |
|
11101 |
# that it should not check whether the UUID exists in the configuration. |
|
11102 |
self.group_uuid = self.cfg.GenerateUniqueID(self.proc.GetECId()) |
|
11103 |
self.needed_locks = {} |
|
11104 |
self.add_locks[locking.LEVEL_NODEGROUP] = self.group_uuid |
|
11105 |
|
|
11106 |
def CheckPrereq(self): |
|
11107 |
"""Check prerequisites. |
|
11108 |
|
|
11109 |
This checks that the given group name is not an existing node group |
|
11110 |
already. |
|
11111 |
|
|
11112 |
""" |
|
11113 |
try: |
|
11114 |
existing_uuid = self.cfg.LookupNodeGroup(self.op.group_name) |
|
11115 |
except errors.OpPrereqError: |
|
11116 |
pass |
|
11117 |
else: |
|
11118 |
raise errors.OpPrereqError("Desired group name '%s' already exists as a" |
|
11119 |
" node group (UUID: %s)" % |
|
11120 |
(self.op.group_name, existing_uuid), |
|
11121 |
errors.ECODE_EXISTS) |
|
11122 |
|
|
11123 |
if self.op.ndparams: |
|
11124 |
utils.ForceDictType(self.op.ndparams, constants.NDS_PARAMETER_TYPES) |
|
11125 |
|
|
11126 |
if self.op.hv_state: |
|
11127 |
self.new_hv_state = _MergeAndVerifyHvState(self.op.hv_state, None) |
|
11128 |
else: |
|
11129 |
self.new_hv_state = None |
|
11130 |
|
|
11131 |
if self.op.disk_state: |
|
11132 |
self.new_disk_state = _MergeAndVerifyDiskState(self.op.disk_state, None) |
|
11133 |
else: |
|
11134 |
self.new_disk_state = None |
|
11135 |
|
|
11136 |
if self.op.diskparams: |
|
11137 |
for templ in constants.DISK_TEMPLATES: |
|
11138 |
if templ in self.op.diskparams: |
|
11139 |
utils.ForceDictType(self.op.diskparams[templ], |
|
11140 |
constants.DISK_DT_TYPES) |
|
11141 |
self.new_diskparams = self.op.diskparams |
|
11142 |
try: |
|
11143 |
utils.VerifyDictOptions(self.new_diskparams, constants.DISK_DT_DEFAULTS) |
|
11144 |
except errors.OpPrereqError, err: |
|
11145 |
raise errors.OpPrereqError("While verify diskparams options: %s" % err, |
|
11146 |
errors.ECODE_INVAL) |
|
11147 |
else: |
|
11148 |
self.new_diskparams = {} |
|
11149 |
|
|
11150 |
if self.op.ipolicy: |
|
11151 |
cluster = self.cfg.GetClusterInfo() |
|
11152 |
full_ipolicy = cluster.SimpleFillIPolicy(self.op.ipolicy) |
|
11153 |
try: |
|
11154 |
objects.InstancePolicy.CheckParameterSyntax(full_ipolicy, False) |
|
11155 |
except errors.ConfigurationError, err: |
|
11156 |
raise errors.OpPrereqError("Invalid instance policy: %s" % err, |
|
11157 |
errors.ECODE_INVAL) |
|
11158 |
|
|
11159 |
def BuildHooksEnv(self): |
|
11160 |
"""Build hooks env. |
|
11161 |
|
|
11162 |
""" |
|
11163 |
return { |
|
11164 |
"GROUP_NAME": self.op.group_name, |
|
11165 |
} |
|
11166 |
|
|
11167 |
def BuildHooksNodes(self): |
|
11168 |
"""Build hooks nodes. |
|
11169 |
|
|
11170 |
""" |
|
11171 |
mn = self.cfg.GetMasterNode() |
|
11172 |
return ([mn], [mn]) |
|
11173 |
|
|
11174 |
def Exec(self, feedback_fn): |
|
11175 |
"""Add the node group to the cluster. |
|
11176 |
|
|
11177 |
""" |
|
11178 |
group_obj = objects.NodeGroup(name=self.op.group_name, members=[], |
|
11179 |
uuid=self.group_uuid, |
|
11180 |
alloc_policy=self.op.alloc_policy, |
|
11181 |
ndparams=self.op.ndparams, |
|
11182 |
diskparams=self.new_diskparams, |
|
11183 |
ipolicy=self.op.ipolicy, |
|
11184 |
hv_state_static=self.new_hv_state, |
|
11185 |
disk_state_static=self.new_disk_state) |
|
11186 |
|
|
11187 |
self.cfg.AddNodeGroup(group_obj, self.proc.GetECId(), check_uuid=False) |
|
11188 |
del self.remove_locks[locking.LEVEL_NODEGROUP] |
|
11189 |
|
|
11190 |
|
|
11191 |
class LUGroupAssignNodes(NoHooksLU): |
|
11192 |
"""Logical unit for assigning nodes to groups. |
|
11193 |
|
|
11194 |
""" |
|
11195 |
REQ_BGL = False |
|
11196 |
|
|
11197 |
def ExpandNames(self): |
|
11198 |
# These raise errors.OpPrereqError on their own: |
|
11199 |
self.group_uuid = self.cfg.LookupNodeGroup(self.op.group_name) |
|
11200 |
self.op.nodes = _GetWantedNodes(self, self.op.nodes) |
|
11201 |
|
|
11202 |
# We want to lock all the affected nodes and groups. We have readily |
|
11203 |
# available the list of nodes, and the *destination* group. To gather the |
|
11204 |
# list of "source" groups, we need to fetch node information later on. |
|
11205 |
self.needed_locks = { |
|
11206 |
locking.LEVEL_NODEGROUP: set([self.group_uuid]), |
|
11207 |
locking.LEVEL_NODE: self.op.nodes, |
|
11208 |
} |
|
11209 |
|
|
11210 |
def DeclareLocks(self, level): |
|
11211 |
if level == locking.LEVEL_NODEGROUP: |
|
11212 |
assert len(self.needed_locks[locking.LEVEL_NODEGROUP]) == 1 |
|
11213 |
|
|
11214 |
# Try to get all affected nodes' groups without having the group or node |
|
11215 |
# lock yet. Needs verification later in the code flow. |
|
11216 |
groups = self.cfg.GetNodeGroupsFromNodes(self.op.nodes) |
|
11217 |
|
|
11218 |
self.needed_locks[locking.LEVEL_NODEGROUP].update(groups) |
|
11219 |
|
|
11220 |
def CheckPrereq(self): |
|
11221 |
"""Check prerequisites. |
|
11222 |
|
|
11223 |
""" |
|
11224 |
assert self.needed_locks[locking.LEVEL_NODEGROUP] |
|
11225 |
assert (frozenset(self.owned_locks(locking.LEVEL_NODE)) == |
|
11226 |
frozenset(self.op.nodes)) |
|
11227 |
|
|
11228 |
expected_locks = (set([self.group_uuid]) | |
|
11229 |
self.cfg.GetNodeGroupsFromNodes(self.op.nodes)) |
|
11230 |
actual_locks = self.owned_locks(locking.LEVEL_NODEGROUP) |
|
11231 |
if actual_locks != expected_locks: |
|
11232 |
raise errors.OpExecError("Nodes changed groups since locks were acquired," |
|
11233 |
" current groups are '%s', used to be '%s'" % |
|
11234 |
(utils.CommaJoin(expected_locks), |
|
11235 |
utils.CommaJoin(actual_locks))) |
|
11236 |
|
|
11237 |
self.node_data = self.cfg.GetAllNodesInfo() |
|
11238 |
self.group = self.cfg.GetNodeGroup(self.group_uuid) |
|
11239 |
instance_data = self.cfg.GetAllInstancesInfo() |
|
11240 |
|
|
11241 |
if self.group is None: |
|
11242 |
raise errors.OpExecError("Could not retrieve group '%s' (UUID: %s)" % |
|
11243 |
(self.op.group_name, self.group_uuid)) |
|
11244 |
|
|
11245 |
(new_splits, previous_splits) = \ |
|
11246 |
self.CheckAssignmentForSplitInstances([(node, self.group_uuid) |
|
11247 |
for node in self.op.nodes], |
|
11248 |
self.node_data, instance_data) |
|
11249 |
|
|
11250 |
if new_splits: |
|
11251 |
fmt_new_splits = utils.CommaJoin(utils.NiceSort(new_splits)) |
|
11252 |
|
|
11253 |
if not self.op.force: |
|
11254 |
raise errors.OpExecError("The following instances get split by this" |
|
11255 |
" change and --force was not given: %s" % |
|
11256 |
fmt_new_splits) |
|
11257 |
else: |
|
11258 |
self.LogWarning("This operation will split the following instances: %s", |
|
11259 |
fmt_new_splits) |
|
11260 |
|
|
11261 |
if previous_splits: |
|
11262 |
self.LogWarning("In addition, these already-split instances continue" |
|
11263 |
" to be split across groups: %s", |
|
11264 |
utils.CommaJoin(utils.NiceSort(previous_splits))) |
|
11265 |
|
|
11266 |
def Exec(self, feedback_fn): |
|
11267 |
"""Assign nodes to a new group. |
|
11268 |
|
|
11269 |
""" |
|
11270 |
mods = [(node_name, self.group_uuid) for node_name in self.op.nodes] |
|
11271 |
|
|
11272 |
self.cfg.AssignGroupNodes(mods) |
|
11273 |
|
|
11274 |
@staticmethod |
|
11275 |
def CheckAssignmentForSplitInstances(changes, node_data, instance_data): |
|
11276 |
"""Check for split instances after a node assignment. |
|
11277 |
|
|
11278 |
This method considers a series of node assignments as an atomic operation, |
|
11279 |
and returns information about split instances after applying the set of |
|
11280 |
changes. |
|
11281 |
|
|
11282 |
In particular, it returns information about newly split instances, and |
|
11283 |
instances that were already split, and remain so after the change. |
|
11284 |
|
|
11285 |
Only instances whose disk template is listed in constants.DTS_INT_MIRROR are |
|
11286 |
considered. |
|
11287 |
|
|
11288 |
@type changes: list of (node_name, new_group_uuid) pairs. |
|
11289 |
@param changes: list of node assignments to consider. |
|
11290 |
@param node_data: a dict with data for all nodes |
|
11291 |
@param instance_data: a dict with all instances to consider |
|
11292 |
@rtype: a two-tuple |
|
11293 |
@return: a list of instances that were previously okay and result split as a |
|
11294 |
consequence of this change, and a list of instances that were previously |
|
11295 |
split and this change does not fix. |
|
11296 |
|
|
11297 |
""" |
|
11298 |
changed_nodes = dict((node, group) for node, group in changes |
|
11299 |
if node_data[node].group != group) |
|
11300 |
|
|
11301 |
all_split_instances = set() |
|
11302 |
previously_split_instances = set() |
|
11303 |
|
|
11304 |
def InstanceNodes(instance): |
|
11305 |
return [instance.primary_node] + list(instance.secondary_nodes) |
|
11306 |
|
|
11307 |
for inst in instance_data.values(): |
|
11308 |
if inst.disk_template not in constants.DTS_INT_MIRROR: |
|
11309 |
continue |
|
11310 |
|
|
11311 |
instance_nodes = InstanceNodes(inst) |
|
11312 |
|
|
11313 |
if len(set(node_data[node].group for node in instance_nodes)) > 1: |
|
11314 |
previously_split_instances.add(inst.name) |
|
11315 |
|
|
11316 |
if len(set(changed_nodes.get(node, node_data[node].group) |
|
11317 |
for node in instance_nodes)) > 1: |
|
11318 |
all_split_instances.add(inst.name) |
|
11319 |
|
|
11320 |
return (list(all_split_instances - previously_split_instances), |
|
11321 |
list(previously_split_instances & all_split_instances)) |
|
11322 |
|
|
11323 |
|
|
11324 |
class _GroupQuery(_QueryBase): |
|
11325 |
FIELDS = query.GROUP_FIELDS |
|
11326 |
|
|
11327 |
def ExpandNames(self, lu): |
|
11328 |
lu.needed_locks = {} |
|
11329 |
|
|
11330 |
self._all_groups = lu.cfg.GetAllNodeGroupsInfo() |
|
11331 |
self._cluster = lu.cfg.GetClusterInfo() |
|
11332 |
name_to_uuid = dict((g.name, g.uuid) for g in self._all_groups.values()) |
|
11333 |
|
|
11334 |
if not self.names: |
|
11335 |
self.wanted = [name_to_uuid[name] |
|
11336 |
for name in utils.NiceSort(name_to_uuid.keys())] |
|
11337 |
else: |
|
11338 |
# Accept names to be either names or UUIDs. |
|
11339 |
missing = [] |
|
11340 |
self.wanted = [] |
|
11341 |
all_uuid = frozenset(self._all_groups.keys()) |
|
11342 |
|
|
11343 |
for name in self.names: |
|
11344 |
if name in all_uuid: |
|
11345 |
self.wanted.append(name) |
|
11346 |
elif name in name_to_uuid: |
|
11347 |
self.wanted.append(name_to_uuid[name]) |
|
11348 |
else: |
|
11349 |
missing.append(name) |
|
11350 |
|
|
11351 |
if missing: |
|
11352 |
raise errors.OpPrereqError("Some groups do not exist: %s" % |
|
11353 |
utils.CommaJoin(missing), |
|
11354 |
errors.ECODE_NOENT) |
|
11355 |
|
|
11356 |
def DeclareLocks(self, lu, level): |
|
11357 |
pass |
|
11358 |
|
|
11359 |
def _GetQueryData(self, lu): |
|
11360 |
"""Computes the list of node groups and their attributes. |
|
11361 |
|
|
11362 |
""" |
|
11363 |
do_nodes = query.GQ_NODE in self.requested_data |
|
11364 |
do_instances = query.GQ_INST in self.requested_data |
|
11365 |
|
|
11366 |
group_to_nodes = None |
|
11367 |
group_to_instances = None |
|
11368 |
|
|
11369 |
# For GQ_NODE, we need to map group->[nodes], and group->[instances] for |
|
11370 |
# GQ_INST. The former is attainable with just GetAllNodesInfo(), but for the |
|
11371 |
# latter GetAllInstancesInfo() is not enough, for we have to go through |
|
11372 |
# instance->node. Hence, we will need to process nodes even if we only need |
|
11373 |
# instance information. |
|
11374 |
if do_nodes or do_instances: |
|
11375 |
all_nodes = lu.cfg.GetAllNodesInfo() |
|
11376 |
group_to_nodes = dict((uuid, []) for uuid in self.wanted) |
|
11377 |
node_to_group = {} |
|
11378 |
|
|
11379 |
for node in all_nodes.values(): |
|
11380 |
if node.group in group_to_nodes: |
|
11381 |
group_to_nodes[node.group].append(node.name) |
|
11382 |
node_to_group[node.name] = node.group |
|
11383 |
|
|
11384 |
if do_instances: |
|
11385 |
all_instances = lu.cfg.GetAllInstancesInfo() |
|
11386 |
group_to_instances = dict((uuid, []) for uuid in self.wanted) |
|
11387 |
|
|
11388 |
for instance in all_instances.values(): |
|
11389 |
node = instance.primary_node |
|
11390 |
if node in node_to_group: |
|
11391 |
group_to_instances[node_to_group[node]].append(instance.name) |
|
11392 |
|
|
11393 |
if not do_nodes: |
|
11394 |
# Do not pass on node information if it was not requested. |
|
11395 |
group_to_nodes = None |
|
11396 |
|
|
11397 |
return query.GroupQueryData(self._cluster, |
|
11398 |
[self._all_groups[uuid] |
|
11399 |
for uuid in self.wanted], |
|
11400 |
group_to_nodes, group_to_instances, |
|
11401 |
query.GQ_DISKPARAMS in self.requested_data) |
|
11402 |
|
|
11403 |
|
|
11404 |
class LUGroupQuery(NoHooksLU): |
|
11405 |
"""Logical unit for querying node groups. |
|
11406 |
|
|
11407 |
""" |
|
11408 |
REQ_BGL = False |
|
11409 |
|
|
11410 |
def CheckArguments(self): |
|
11411 |
self.gq = _GroupQuery(qlang.MakeSimpleFilter("name", self.op.names), |
|
11412 |
self.op.output_fields, False) |
|
11413 |
|
|
11414 |
def ExpandNames(self): |
|
11415 |
self.gq.ExpandNames(self) |
|
11416 |
|
|
11417 |
def DeclareLocks(self, level): |
|
11418 |
self.gq.DeclareLocks(self, level) |
|
11419 |
|
|
11420 |
def Exec(self, feedback_fn): |
|
11421 |
return self.gq.OldStyleQuery(self) |
|
11422 |
|
|
11423 |
|
|
11424 |
class LUGroupSetParams(LogicalUnit): |
|
11425 |
"""Modifies the parameters of a node group. |
|
11426 |
|
|
11427 |
""" |
|
11428 |
HPATH = "group-modify" |
|
11429 |
HTYPE = constants.HTYPE_GROUP |
|
11430 |
REQ_BGL = False |
|
11431 |
|
|
11432 |
def CheckArguments(self): |
|
11433 |
all_changes = [ |
|
11434 |
self.op.ndparams, |
|
11435 |
self.op.diskparams, |
|
11436 |
self.op.alloc_policy, |
|
11437 |
self.op.hv_state, |
|
11438 |
self.op.disk_state, |
|
11439 |
self.op.ipolicy, |
|
11440 |
] |
|
11441 |
|
|
11442 |
if all_changes.count(None) == len(all_changes): |
|
11443 |
raise errors.OpPrereqError("Please pass at least one modification", |
|
11444 |
errors.ECODE_INVAL) |
|
11445 |
|
|
11446 |
def ExpandNames(self): |
|
11447 |
# This raises errors.OpPrereqError on its own: |
|
11448 |
self.group_uuid = self.cfg.LookupNodeGroup(self.op.group_name) |
|
11449 |
|
|
11450 |
self.needed_locks = { |
|
11451 |
locking.LEVEL_INSTANCE: [], |
|
11452 |
locking.LEVEL_NODEGROUP: [self.group_uuid], |
|
11453 |
} |
|
11454 |
|
|
11455 |
self.share_locks[locking.LEVEL_INSTANCE] = 1 |
|
11456 |
|
|
11457 |
def DeclareLocks(self, level): |
|
11458 |
if level == locking.LEVEL_INSTANCE: |
|
11459 |
assert not self.needed_locks[locking.LEVEL_INSTANCE] |
|
11460 |
|
|
11461 |
# Lock instances optimistically, needs verification once group lock has |
|
11462 |
# been acquired |
|
11463 |
self.needed_locks[locking.LEVEL_INSTANCE] = \ |
|
11464 |
self.cfg.GetNodeGroupInstances(self.group_uuid) |
|
11465 |
|
|
11466 |
@staticmethod |
|
11467 |
def _UpdateAndVerifyDiskParams(old, new): |
|
11468 |
"""Updates and verifies disk parameters. |
|
11469 |
|
|
11470 |
""" |
|
11471 |
new_params = _GetUpdatedParams(old, new) |
|
11472 |
utils.ForceDictType(new_params, constants.DISK_DT_TYPES) |
|
11473 |
return new_params |
|
11474 |
|
|
11475 |
def CheckPrereq(self): |
|
11476 |
"""Check prerequisites. |
|
11477 |
|
|
11478 |
""" |
|
11479 |
owned_instances = frozenset(self.owned_locks(locking.LEVEL_INSTANCE)) |
|
11480 |
|
|
11481 |
# Check if locked instances are still correct |
|
11482 |
_CheckNodeGroupInstances(self.cfg, self.group_uuid, owned_instances) |
|
11483 |
|
|
11484 |
self.group = self.cfg.GetNodeGroup(self.group_uuid) |
|
11485 |
cluster = self.cfg.GetClusterInfo() |
|
11486 |
|
|
11487 |
if self.group is None: |
|
11488 |
raise errors.OpExecError("Could not retrieve group '%s' (UUID: %s)" % |
|
11489 |
(self.op.group_name, self.group_uuid)) |
|
11490 |
|
|
11491 |
if self.op.ndparams: |
|
11492 |
new_ndparams = _GetUpdatedParams(self.group.ndparams, self.op.ndparams) |
|
11493 |
utils.ForceDictType(new_ndparams, constants.NDS_PARAMETER_TYPES) |
|
11494 |
self.new_ndparams = new_ndparams |
|
11495 |
|
|
11496 |
if self.op.diskparams: |
|
11497 |
diskparams = self.group.diskparams |
|
11498 |
uavdp = self._UpdateAndVerifyDiskParams |
|
11499 |
# For each disktemplate subdict update and verify the values |
|
11500 |
new_diskparams = dict((dt, |
|
11501 |
uavdp(diskparams.get(dt, {}), |
|
11502 |
self.op.diskparams[dt])) |
|
11503 |
for dt in constants.DISK_TEMPLATES |
|
11504 |
if dt in self.op.diskparams) |
|
11505 |
# As we've all subdicts of diskparams ready, lets merge the actual |
|
11506 |
# dict with all updated subdicts |
|
11507 |
self.new_diskparams = objects.FillDict(diskparams, new_diskparams) |
|
11508 |
try: |
|
11509 |
utils.VerifyDictOptions(self.new_diskparams, constants.DISK_DT_DEFAULTS) |
|
11510 |
except errors.OpPrereqError, err: |
|
11511 |
raise errors.OpPrereqError("While verify diskparams options: %s" % err, |
|
11512 |
errors.ECODE_INVAL) |
|
11513 |
|
|
11514 |
if self.op.hv_state: |
|
11515 |
self.new_hv_state = _MergeAndVerifyHvState(self.op.hv_state, |
|
11516 |
self.group.hv_state_static) |
|
11517 |
|
|
11518 |
if self.op.disk_state: |
|
11519 |
self.new_disk_state = \ |
|
11520 |
_MergeAndVerifyDiskState(self.op.disk_state, |
|
11521 |
self.group.disk_state_static) |
|
11522 |
|
|
11523 |
if self.op.ipolicy: |
|
11524 |
self.new_ipolicy = _GetUpdatedIPolicy(self.group.ipolicy, |
|
11525 |
self.op.ipolicy, |
|
11526 |
group_policy=True) |
|
11527 |
|
|
11528 |
new_ipolicy = cluster.SimpleFillIPolicy(self.new_ipolicy) |
|
11529 |
inst_filter = lambda inst: inst.name in owned_instances |
|
11530 |
instances = self.cfg.GetInstancesInfoByFilter(inst_filter).values() |
|
11531 |
gmi = ganeti.masterd.instance |
|
11532 |
violations = \ |
|
11533 |
_ComputeNewInstanceViolations(gmi.CalculateGroupIPolicy(cluster, |
|
11534 |
self.group), |
|
11535 |
new_ipolicy, instances, self.cfg) |
|
11536 |
|
|
11537 |
if violations: |
|
11538 |
self.LogWarning("After the ipolicy change the following instances" |
|
11539 |
" violate them: %s", |
|
11540 |
utils.CommaJoin(violations)) |
|
11541 |
|
|
11542 |
def BuildHooksEnv(self): |
|
11543 |
"""Build hooks env. |
|
11544 |
|
|
11545 |
""" |
|
11546 |
return { |
|
11547 |
"GROUP_NAME": self.op.group_name, |
|
11548 |
"NEW_ALLOC_POLICY": self.op.alloc_policy, |
|
11549 |
} |
|
11550 |
|
|
11551 |
def BuildHooksNodes(self): |
|
11552 |
"""Build hooks nodes. |
|
11553 |
|
|
11554 |
""" |
|
11555 |
mn = self.cfg.GetMasterNode() |
|
11556 |
return ([mn], [mn]) |
|
11557 |
|
|
11558 |
def Exec(self, feedback_fn): |
|
11559 |
"""Modifies the node group. |
|
11560 |
|
|
11561 |
""" |
|
11562 |
result = [] |
|
11563 |
|
|
11564 |
if self.op.ndparams: |
|
11565 |
self.group.ndparams = self.new_ndparams |
|
11566 |
result.append(("ndparams", str(self.group.ndparams))) |
|
11567 |
|
|
11568 |
if self.op.diskparams: |
|
11569 |
self.group.diskparams = self.new_diskparams |
|
11570 |
result.append(("diskparams", str(self.group.diskparams))) |
|
11571 |
|
|
11572 |
if self.op.alloc_policy: |
|
11573 |
self.group.alloc_policy = self.op.alloc_policy |
|
11574 |
|
|
11575 |
if self.op.hv_state: |
|
11576 |
self.group.hv_state_static = self.new_hv_state |
|
11577 |
|
|
11578 |
if self.op.disk_state: |
|
11579 |
self.group.disk_state_static = self.new_disk_state |
|
11580 |
|
|
11581 |
if self.op.ipolicy: |
|
11582 |
self.group.ipolicy = self.new_ipolicy |
|
11583 |
|
|
11584 |
self.cfg.Update(self.group, feedback_fn) |
|
11585 |
return result |
|
11586 |
|
|
11587 |
|
|
11588 |
class LUGroupRemove(LogicalUnit): |
|
11589 |
HPATH = "group-remove" |
|
11590 |
HTYPE = constants.HTYPE_GROUP |
|
11591 |
REQ_BGL = False |
|
11592 |
|
|
11593 |
def ExpandNames(self): |
|
11594 |
# This will raises errors.OpPrereqError on its own: |
|
11595 |
self.group_uuid = self.cfg.LookupNodeGroup(self.op.group_name) |
|
11596 |
self.needed_locks = { |
|
11597 |
locking.LEVEL_NODEGROUP: [self.group_uuid], |
|
11598 |
} |
|
11599 |
|
|
11600 |
def CheckPrereq(self): |
|
11601 |
"""Check prerequisites. |
|
11602 |
|
|
11603 |
This checks that the given group name exists as a node group, that is |
|
11604 |
empty (i.e., contains no nodes), and that is not the last group of the |
|
11605 |
cluster. |
|
11606 |
|
|
11607 |
""" |
|
11608 |
# Verify that the group is empty. |
|
11609 |
group_nodes = [node.name |
|
11610 |
for node in self.cfg.GetAllNodesInfo().values() |
|
11611 |
if node.group == self.group_uuid] |
|
11612 |
|
|
11613 |
if group_nodes: |
|
11614 |
raise errors.OpPrereqError("Group '%s' not empty, has the following" |
|
11615 |
" nodes: %s" % |
|
11616 |
(self.op.group_name, |
|
11617 |
utils.CommaJoin(utils.NiceSort(group_nodes))), |
|
11618 |
errors.ECODE_STATE) |
|
11619 |
|
|
11620 |
# Verify the cluster would not be left group-less. |
|
11621 |
if len(self.cfg.GetNodeGroupList()) == 1: |
|
11622 |
raise errors.OpPrereqError("Group '%s' is the only group, cannot be" |
|
11623 |
" removed" % self.op.group_name, |
|
11624 |
errors.ECODE_STATE) |
|
11625 |
|
|
11626 |
def BuildHooksEnv(self): |
|
11627 |
"""Build hooks env. |
|
11628 |
|
|
11629 |
""" |
|
11630 |
return { |
|
11631 |
"GROUP_NAME": self.op.group_name, |
|
11632 |
} |
|
11633 |
|
|
11634 |
def BuildHooksNodes(self): |
|
11635 |
"""Build hooks nodes. |
|
11636 |
|
|
11637 |
""" |
|
11638 |
mn = self.cfg.GetMasterNode() |
|
11639 |
return ([mn], [mn]) |
|
11640 |
|
|
11641 |
def Exec(self, feedback_fn): |
|
11642 |
"""Remove the node group. |
|
11643 |
|
|
11644 |
""" |
|
11645 |
try: |
|
11646 |
self.cfg.RemoveNodeGroup(self.group_uuid) |
|
11647 |
except errors.ConfigurationError: |
|
11648 |
raise errors.OpExecError("Group '%s' with UUID %s disappeared" % |
|
11649 |
(self.op.group_name, self.group_uuid)) |
|
11650 |
|
|
11651 |
self.remove_locks[locking.LEVEL_NODEGROUP] = self.group_uuid |
|
11652 |
|
|
11653 |
|
|
11654 |
class LUGroupRename(LogicalUnit): |
|
11655 |
HPATH = "group-rename" |
|
11656 |
HTYPE = constants.HTYPE_GROUP |
|
11657 |
REQ_BGL = False |
|
11658 |
|
|
11659 |
def ExpandNames(self): |
|
11660 |
# This raises errors.OpPrereqError on its own: |
|
11661 |
self.group_uuid = self.cfg.LookupNodeGroup(self.op.group_name) |
|
11662 |
|
|
11663 |
self.needed_locks = { |
|
11664 |
locking.LEVEL_NODEGROUP: [self.group_uuid], |
|
11665 |
} |
|
11666 |
|
|
11667 |
def CheckPrereq(self): |
|
11668 |
"""Check prerequisites. |
|
11669 |
|
|
11670 |
Ensures requested new name is not yet used. |
|
11671 |
|
|
11672 |
""" |
|
11673 |
try: |
|
11674 |
new_name_uuid = self.cfg.LookupNodeGroup(self.op.new_name) |
|
11675 |
except errors.OpPrereqError: |
|
11676 |
pass |
|
11677 |
else: |
|
11678 |
raise errors.OpPrereqError("Desired new name '%s' clashes with existing" |
|
11679 |
" node group (UUID: %s)" % |
|
11680 |
(self.op.new_name, new_name_uuid), |
|
11681 |
errors.ECODE_EXISTS) |
|
11682 |
|
|
11683 |
def BuildHooksEnv(self): |
|
11684 |
"""Build hooks env. |
|
11685 |
|
|
11686 |
""" |
|
11687 |
return { |
|
11688 |
"OLD_NAME": self.op.group_name, |
|
11689 |
"NEW_NAME": self.op.new_name, |
|
11690 |
} |
|
11691 |
|
|
11692 |
def BuildHooksNodes(self): |
|
11693 |
"""Build hooks nodes. |
|
11694 |
|
|
11695 |
""" |
|
11696 |
mn = self.cfg.GetMasterNode() |
|
11697 |
|
|
11698 |
all_nodes = self.cfg.GetAllNodesInfo() |
|
11699 |
all_nodes.pop(mn, None) |
|
11700 |
|
|
11701 |
run_nodes = [mn] |
|
11702 |
run_nodes.extend(node.name for node in all_nodes.values() |
|
11703 |
if node.group == self.group_uuid) |
|
11704 |
|
|
11705 |
return (run_nodes, run_nodes) |
|
11706 |
|
|
11707 |
def Exec(self, feedback_fn): |
|
11708 |
"""Rename the node group. |
|
11709 |
|
|
11710 |
""" |
|
11711 |
group = self.cfg.GetNodeGroup(self.group_uuid) |
|
11712 |
|
|
11713 |
if group is None: |
|
11714 |
raise errors.OpExecError("Could not retrieve group '%s' (UUID: %s)" % |
|
11715 |
(self.op.group_name, self.group_uuid)) |
|
11716 |
|
|
11717 |
group.name = self.op.new_name |
|
11718 |
self.cfg.Update(group, feedback_fn) |
|
11719 |
|
|
11720 |
return self.op.new_name |
|
11721 |
|
|
11722 |
|
|
11723 |
class LUGroupEvacuate(LogicalUnit): |
|
11724 |
HPATH = "group-evacuate" |
|
11725 |
HTYPE = constants.HTYPE_GROUP |
|
11726 |
REQ_BGL = False |
|
11727 |
|
|
11728 |
def ExpandNames(self): |
|
11729 |
# This raises errors.OpPrereqError on its own: |
|
11730 |
self.group_uuid = self.cfg.LookupNodeGroup(self.op.group_name) |
|
11731 |
|
|
11732 |
if self.op.target_groups: |
|
11733 |
self.req_target_uuids = map(self.cfg.LookupNodeGroup, |
|
11734 |
self.op.target_groups) |
|
11735 |
else: |
|
11736 |
self.req_target_uuids = [] |
|
11737 |
|
|
11738 |
if self.group_uuid in self.req_target_uuids: |
|
11739 |
raise errors.OpPrereqError("Group to be evacuated (%s) can not be used" |
|
11740 |
" as a target group (targets are %s)" % |
|
11741 |
(self.group_uuid, |
|
11742 |
utils.CommaJoin(self.req_target_uuids)), |
|
11743 |
errors.ECODE_INVAL) |
|
11744 |
|
|
11745 |
self.op.iallocator = _GetDefaultIAllocator(self.cfg, self.op.iallocator) |
|
11746 |
|
|
11747 |
self.share_locks = _ShareAll() |
|
11748 |
self.needed_locks = { |
|
11749 |
locking.LEVEL_INSTANCE: [], |
|
11750 |
locking.LEVEL_NODEGROUP: [], |
|
11751 |
locking.LEVEL_NODE: [], |
|
11752 |
} |
|
11753 |
|
|
11754 |
def DeclareLocks(self, level): |
|
11755 |
if level == locking.LEVEL_INSTANCE: |
|
11756 |
assert not self.needed_locks[locking.LEVEL_INSTANCE] |
|
11757 |
|
|
11758 |
# Lock instances optimistically, needs verification once node and group |
|
11759 |
# locks have been acquired |
|
11760 |
self.needed_locks[locking.LEVEL_INSTANCE] = \ |
|
11761 |
self.cfg.GetNodeGroupInstances(self.group_uuid) |
|
11762 |
|
|
11763 |
elif level == locking.LEVEL_NODEGROUP: |
|
11764 |
assert not self.needed_locks[locking.LEVEL_NODEGROUP] |
|
11765 |
|
|
11766 |
if self.req_target_uuids: |
|
11767 |
lock_groups = set([self.group_uuid] + self.req_target_uuids) |
|
11768 |
|
|
11769 |
# Lock all groups used by instances optimistically; this requires going |
|
11770 |
# via the node before it's locked, requiring verification later on |
|
11771 |
lock_groups.update(group_uuid |
|
11772 |
for instance_name in |
|
11773 |
self.owned_locks(locking.LEVEL_INSTANCE) |
|
11774 |
for group_uuid in |
|
11775 |
self.cfg.GetInstanceNodeGroups(instance_name)) |
|
11776 |
else: |
|
11777 |
# No target groups, need to lock all of them |
|
11778 |
lock_groups = locking.ALL_SET |
|
11779 |
|
|
11780 |
self.needed_locks[locking.LEVEL_NODEGROUP] = lock_groups |
|
11781 |
|
|
11782 |
elif level == locking.LEVEL_NODE: |
|
11783 |
# This will only lock the nodes in the group to be evacuated which |
|
11784 |
# contain actual instances |
|
11785 |
self.recalculate_locks[locking.LEVEL_NODE] = constants.LOCKS_APPEND |
|
11786 |
self._LockInstancesNodes() |
|
11787 |
|
|
11788 |
# Lock all nodes in group to be evacuated and target groups |
|
11789 |
owned_groups = frozenset(self.owned_locks(locking.LEVEL_NODEGROUP)) |
|
11790 |
assert self.group_uuid in owned_groups |
|
11791 |
member_nodes = [node_name |
|
11792 |
for group in owned_groups |
|
11793 |
for node_name in self.cfg.GetNodeGroup(group).members] |
|
11794 |
self.needed_locks[locking.LEVEL_NODE].extend(member_nodes) |
|
11795 |
|
|
11796 |
def CheckPrereq(self): |
|
11797 |
owned_instances = frozenset(self.owned_locks(locking.LEVEL_INSTANCE)) |
|
11798 |
owned_groups = frozenset(self.owned_locks(locking.LEVEL_NODEGROUP)) |
|
11799 |
owned_nodes = frozenset(self.owned_locks(locking.LEVEL_NODE)) |
|
11800 |
|
|
11801 |
assert owned_groups.issuperset(self.req_target_uuids) |
|
11802 |
assert self.group_uuid in owned_groups |
|
11803 |
|
|
11804 |
# Check if locked instances are still correct |
|
11805 |
_CheckNodeGroupInstances(self.cfg, self.group_uuid, owned_instances) |
|
11806 |
|
|
11807 |
# Get instance information |
|
11808 |
self.instances = dict(self.cfg.GetMultiInstanceInfo(owned_instances)) |
|
11809 |
|
|
11810 |
# Check if node groups for locked instances are still correct |
|
11811 |
_CheckInstancesNodeGroups(self.cfg, self.instances, |
|
11812 |
owned_groups, owned_nodes, self.group_uuid) |
|
11813 |
|
|
11814 |
if self.req_target_uuids: |
|
11815 |
# User requested specific target groups |
|
11816 |
self.target_uuids = self.req_target_uuids |
|
11817 |
else: |
|
11818 |
# All groups except the one to be evacuated are potential targets |
|
11819 |
self.target_uuids = [group_uuid for group_uuid in owned_groups |
|
11820 |
if group_uuid != self.group_uuid] |
|
11821 |
|
|
11822 |
if not self.target_uuids: |
|
11823 |
raise errors.OpPrereqError("There are no possible target groups", |
|
11824 |
errors.ECODE_INVAL) |
|
11825 |
|
|
11826 |
def BuildHooksEnv(self): |
|
11827 |
"""Build hooks env. |
|
11828 |
|
|
11829 |
""" |
|
11830 |
return { |
|
11831 |
"GROUP_NAME": self.op.group_name, |
|
11832 |
"TARGET_GROUPS": " ".join(self.target_uuids), |
|
11833 |
} |
|
11834 |
|
|
11835 |
def BuildHooksNodes(self): |
|
11836 |
"""Build hooks nodes. |
|
11837 |
|
|
11838 |
""" |
|
11839 |
mn = self.cfg.GetMasterNode() |
|
11840 |
|
|
11841 |
assert self.group_uuid in self.owned_locks(locking.LEVEL_NODEGROUP) |
|
11842 |
|
|
11843 |
run_nodes = [mn] + self.cfg.GetNodeGroup(self.group_uuid).members |
|
11844 |
|
|
11845 |
return (run_nodes, run_nodes) |
|
11846 |
|
|
11847 |
def Exec(self, feedback_fn): |
|
11848 |
instances = list(self.owned_locks(locking.LEVEL_INSTANCE)) |
|
11849 |
|
|
11850 |
assert self.group_uuid not in self.target_uuids |
|
11851 |
|
|
11852 |
req = iallocator.IAReqGroupChange(instances=instances, |
|
11853 |
target_groups=self.target_uuids) |
|
11854 |
ial = iallocator.IAllocator(self.cfg, self.rpc, req) |
|
11855 |
|
|
11856 |
ial.Run(self.op.iallocator) |
|
11857 |
|
|
11858 |
if not ial.success: |
|
11859 |
raise errors.OpPrereqError("Can't compute group evacuation using" |
|
11860 |
" iallocator '%s': %s" % |
|
11861 |
(self.op.iallocator, ial.info), |
|
11862 |
errors.ECODE_NORES) |
|
11863 |
|
|
11864 |
jobs = _LoadNodeEvacResult(self, ial.result, self.op.early_release, False) |
|
11865 |
|
|
11866 |
self.LogInfo("Iallocator returned %s job(s) for evacuating node group %s", |
|
11867 |
len(jobs), self.op.group_name) |
|
11868 |
|
|
11869 |
return ResultWithJobs(jobs) |
|
11870 |
|
|
11871 |
|
|
11872 | 10829 |
class LURestrictedCommand(NoHooksLU): |
11873 | 10830 |
"""Logical unit for executing restricted commands. |
11874 | 10831 |
|
Also available in: Unified diff