def ExpandNames(self):
self._ExpandAndLockInstance()
+ # Can't even acquire node locks in shared mode as upcoming changes in
+ # Ganeti 2.6 will start to modify the node object on disk conversion
self.needed_locks[locking.LEVEL_NODE] = []
+ self.needed_locks[locking.LEVEL_NODE_RES] = []
self.recalculate_locks[locking.LEVEL_NODE] = constants.LOCKS_REPLACE
def DeclareLocks(self, level):
if self.op.disk_template and self.op.remote_node:
self.op.remote_node = _ExpandNodeName(self.cfg, self.op.remote_node)
self.needed_locks[locking.LEVEL_NODE].append(self.op.remote_node)
+ elif level == locking.LEVEL_NODE_RES and self.op.disk_template:
+ # Copy node locks
+ self.needed_locks[locking.LEVEL_NODE_RES] = \
+ self.needed_locks[locking.LEVEL_NODE][:]
def BuildHooksEnv(self):
"""Build hooks env.
(disk_op, len(instance.disks)),
errors.ECODE_INVAL)
- return
-
def _ConvertPlainToDrbd(self, feedback_fn):
"""Converts an instance from plain to drbd.
pnode = instance.primary_node
snode = self.op.remote_node
+ assert instance.disk_template == constants.DT_PLAIN
+
# create a fake disk info for _GenerateDiskTemplate
disk_info = [{constants.IDISK_SIZE: d.size, constants.IDISK_MODE: d.mode,
constants.IDISK_VG: d.logical_id[0]}
instance.disks = new_disks
self.cfg.Update(instance, feedback_fn)
+ # Release node locks while waiting for sync
+ _ReleaseLocks(self, locking.LEVEL_NODE)
+
# disks are created, waiting for sync
disk_abort = not _WaitForSync(self, instance,
oneshot=not self.op.wait_for_sync)
raise errors.OpExecError("There are some degraded disks for"
" this instance, please cleanup manually")
+ # Node resource locks will be released by caller
+
def _ConvertDrbdToPlain(self, feedback_fn):
"""Converts an instance from drbd to plain.
"""
instance = self.instance
+
assert len(instance.secondary_nodes) == 1
+ assert instance.disk_template == constants.DT_DRBD8
+
pnode = instance.primary_node
snode = instance.secondary_nodes[0]
feedback_fn("Converting template to plain")
instance.disk_template = constants.DT_PLAIN
self.cfg.Update(instance, feedback_fn)
+ # Release locks in case removing disks takes a while
+ _ReleaseLocks(self, locking.LEVEL_NODE)
+
feedback_fn("Removing volumes on the secondary node...")
for disk in old_disks:
self.cfg.SetDiskID(disk, snode)
self.LogWarning("Could not remove metadata for disk %d on node %s,"
" continuing anyway: %s", idx, pnode, msg)
+ # Node resource locks will be released by caller
+
def Exec(self, feedback_fn):
"""Modifies an instance.
for warn in self.warn:
feedback_fn("WARNING: %s" % warn)
+ assert ((self.op.disk_template is None) ^
+ bool(self.owned_locks(locking.LEVEL_NODE_RES))), \
+ "Not owning any node resource locks"
+
result = []
instance = self.instance
# disk changes
disk_dict[constants.IDISK_MODE]))
if self.op.disk_template:
+ if __debug__:
+ check_nodes = set(instance.all_nodes)
+ if self.op.remote_node:
+ check_nodes.add(self.op.remote_node)
+ for level in [locking.LEVEL_NODE, locking.LEVEL_NODE_RES]:
+ owned = self.owned_locks(level)
+ assert not (check_nodes - owned), \
+ ("Not owning the correct locks, owning %r, expected at least %r" %
+ (owned, check_nodes))
+
r_shut = _ShutdownInstanceDisks(self, instance)
if not r_shut:
raise errors.OpExecError("Cannot shutdown instance disks, unable to"
raise
result.append(("disk_template", self.op.disk_template))
+ assert instance.disk_template == self.op.disk_template, \
+ ("Expected disk template '%s', found '%s'" %
+ (self.op.disk_template, instance.disk_template))
+
+ # Release node and resource locks if there are any (they might already have
+ # been released during disk conversion)
+ _ReleaseLocks(self, locking.LEVEL_NODE)
+ _ReleaseLocks(self, locking.LEVEL_NODE_RES)
+
# NIC changes
for nic_op, nic_dict in self.op.nics:
if nic_op == constants.DDM_REMOVE:
self.cfg.Update(instance, feedback_fn)
+ assert not (self.owned_locks(locking.LEVEL_NODE_RES) or
+ self.owned_locks(locking.LEVEL_NODE)), \
+ "All node locks should have been released by now"
+
return result
_DISK_CONVERSIONS = {