def execute(self, **kwargs):
"""Wrapper of action execution.
This is mainly a wrapper that executes an action with cluster lock
acquired.
:returns: A tuple (res, reason) that indicates whether the execution
was a success and why if it wasn't a success.
"""
# Try to lock cluster before do real operation
forced = True if self.action == self.CLUSTER_DELETE else False
res = senlin_lock.cluster_lock_acquire(self.context, self.target,
self.id, self.owner,
senlin_lock.CLUSTER_SCOPE,
forced)
if not res:
return self.RES_ERROR, _('Failed in locking cluster.')
try:
res, reason = self._execute(**kwargs)
finally:
senlin_lock.cluster_lock_release(self.target, self.id,
senlin_lock.CLUSTER_SCOPE)
return res, reason
def execute(self, **kwargs):
'''Wrapper of action execution.
This is mainly a wrapper that executes an action with cluster lock
acquired.
:return: A tuple (res, reason) that indicates whether the execution
was a success and why if it wasn't a success.
'''
try:
cluster = cluster_mod.Cluster.load(self.context, self.target)
except exception.NotFound:
reason = _('Cluster %(id)s not found') % {'id': self.target}
LOG.error(_LE(reason))
return self.RES_ERROR, reason
# Try to lock cluster before do real operation
forced = True if self.action == self.CLUSTER_DELETE else False
res = senlin_lock.cluster_lock_acquire(cluster.id, self.id,
senlin_lock.CLUSTER_SCOPE,
forced)
if not res:
return self.RES_ERROR, _('Failed locking cluster')
try:
res, reason = self._execute(cluster)
finally:
senlin_lock.cluster_lock_release(cluster.id, self.id,
senlin_lock.CLUSTER_SCOPE)
return res, reason
def execute(self, **kwargs):
"""Wrapper of action execution.
This is mainly a wrapper that executes an action with cluster lock
acquired.
:returns: A tuple (res, reason) that indicates whether the execution
was a success and why if it wasn't a success.
"""
# Try to lock cluster before do real operation
forced = (self.action == consts.CLUSTER_DELETE)
res = senlin_lock.cluster_lock_acquire(self.context, self.target,
self.id, self.owner,
senlin_lock.CLUSTER_SCOPE,
forced)
# Failed to acquire lock, return RES_RETRY
if not res:
return self.RES_RETRY, 'Failed in locking cluster.'
try:
# Refresh entity state to avoid stale data in action.
self.entity = cluster_mod.Cluster.load(self.context, self.target)
res, reason = self._execute(**kwargs)
finally:
senlin_lock.cluster_lock_release(self.target, self.id,
senlin_lock.CLUSTER_SCOPE)
return res, reason
def execute(self, **kwargs):
"""Wrapper of action execution.
This is mainly a wrapper that executes an action with cluster lock
acquired.
:returns: A tuple (res, reason) that indicates whether the execution
was a success and why if it wasn't a success.
"""
# Try to lock cluster before do real operation
forced = True if self.action == self.CLUSTER_DELETE else False
res = senlin_lock.cluster_lock_acquire(self.context, self.target,
self.id, self.owner,
senlin_lock.CLUSTER_SCOPE,
forced)
if not res:
return self.RES_ERROR, _('Failed in locking cluster.')
try:
res, reason = self._execute(**kwargs)
finally:
senlin_lock.cluster_lock_release(self.target, self.id,
senlin_lock.CLUSTER_SCOPE)
return res, reason
def execute(self, **kwargs):
"""Interface function for action execution.
:param dict kwargs: Parameters provided to the action, if any.
:returns: A tuple containing the result and the related reason.
"""
# Since node.cluster_id could be reset to '' during action execution,
# we record it here for policy check and cluster lock release.
forced = (self.action in [consts.NODE_DELETE, consts.NODE_OPERATION])
saved_cluster_id = self.entity.cluster_id
if saved_cluster_id:
if self.cause == consts.CAUSE_RPC:
res = senlin_lock.cluster_lock_acquire(self.context,
self.entity.cluster_id,
self.id, self.owner,
senlin_lock.NODE_SCOPE,
False)
if not res:
return self.RES_RETRY, 'Failed in locking cluster'
try:
self.policy_check(self.entity.cluster_id, 'BEFORE')
finally:
if self.data['status'] != pb.CHECK_OK:
# Don't emit message since policy_check should have
# done it
senlin_lock.cluster_lock_release(
saved_cluster_id, self.id, senlin_lock.NODE_SCOPE)
return self.RES_ERROR, ('Policy check: ' +
self.data['reason'])
elif self.cause == consts.CAUSE_DERIVED_LCH:
self.policy_check(saved_cluster_id, 'BEFORE')
try:
res = senlin_lock.node_lock_acquire(self.context, self.entity.id,
self.id, self.owner, forced)
if not res:
res = self.RES_RETRY
reason = 'Failed in locking node'
else:
res, reason = self._execute()
if saved_cluster_id and self.cause == consts.CAUSE_RPC:
self.policy_check(saved_cluster_id, 'AFTER')
if self.data['status'] != pb.CHECK_OK:
res = self.RES_ERROR
reason = 'Policy check: ' + self.data['reason']
finally:
senlin_lock.node_lock_release(self.entity.id, self.id)
if saved_cluster_id and self.cause == consts.CAUSE_RPC:
senlin_lock.cluster_lock_release(saved_cluster_id, self.id,
senlin_lock.NODE_SCOPE)
return res, reason
def execute(self, **kwargs):
"""Interface function for action execution.
:param dict kwargs: Parameters provided to the action, if any.
:returns: A tuple containing the result and the related reason.
"""
# Since node.cluster_id could be reset to None in _execute progress,
# we record it here for policy check and cluster lock release.
saved_cluster_id = self.node.cluster_id
if self.node.cluster_id:
if self.cause == base.CAUSE_RPC:
res = senlin_lock.cluster_lock_acquire(
self.context,
self.node.cluster_id, self.id, self.owner,
senlin_lock.NODE_SCOPE, False)
if not res:
return self.RES_RETRY, _('Failed in locking cluster')
self.policy_check(self.node.cluster_id, 'BEFORE')
if self.data['status'] != policy_mod.CHECK_OK:
# Don't emit message here since policy_check should have
# done it
if self.cause == base.CAUSE_RPC:
senlin_lock.cluster_lock_release(
self.node.cluster_id, self.id, senlin_lock.NODE_SCOPE)
return self.RES_ERROR, 'Policy check: ' + self.data['reason']
reason = ''
try:
res = senlin_lock.node_lock_acquire(self.context, self.node.id,
self.id, self.owner, False)
if not res:
res = self.RES_ERROR
reason = _('Failed in locking node')
else:
res, reason = self._execute()
if res == self.RES_OK and saved_cluster_id is not None:
self.policy_check(saved_cluster_id, 'AFTER')
if self.data['status'] != policy_mod.CHECK_OK:
res = self.RES_ERROR
reason = 'Policy check: ' + self.data['reason']
else:
res = self.RES_OK
finally:
senlin_lock.node_lock_release(self.node.id, self.id)
if saved_cluster_id is not None and self.cause == base.CAUSE_RPC:
senlin_lock.cluster_lock_release(saved_cluster_id, self.id,
senlin_lock.NODE_SCOPE)
return res, reason
def execute(self, **kwargs):
# Since node.cluster_id could be reset to None in _execute progress,
# we record it here for policy check and cluster lock release.
saved_cluster_id = self.node.cluster_id
if self.node.cluster_id:
if self.cause == base.CAUSE_RPC:
res = senlin_lock.cluster_lock_acquire(
self.node.cluster_id, self.id,
senlin_lock.NODE_SCOPE, False)
if not res:
return self.RES_RETRY, _('Failed in locking cluster')
self.policy_check(self.node.cluster_id, 'BEFORE')
if self.data['status'] != policy_mod.CHECK_OK:
# Don't emit message here since policy_check should have
# done it
if self.cause == base.CAUSE_RPC:
senlin_lock.cluster_lock_release(
self.node.cluster_id, self.id, senlin_lock.NODE_SCOPE)
return self.RES_ERROR, 'Policy check: ' + self.data['reason']
reason = ''
try:
res = senlin_lock.node_lock_acquire(self.node.id, self.id, False)
if not res:
res = self.RES_ERROR
reason = _('Failed in locking node')
else:
res, reason = self._execute()
if res == self.RES_OK and saved_cluster_id is not None:
self.policy_check(saved_cluster_id, 'AFTER')
if self.data['status'] != policy_mod.CHECK_OK:
res = self.RES_ERROR
reason = 'Policy check: ' + self.data['reason']
else:
res = self.RES_OK
finally:
senlin_lock.node_lock_release(self.node.id, self.id)
if saved_cluster_id is not None and self.cause == base.CAUSE_RPC:
senlin_lock.cluster_lock_release(saved_cluster_id, self.id,
senlin_lock.NODE_SCOPE)
return res, reason
def test_cluster_lock_release(self, mock_release):
actual = lockm.cluster_lock_release('C', 'A', 'S')
self.assertEqual(mock_release.return_value, actual)
mock_release.assert_called_once_with('C', 'A', 'S')
def test_cluster_lock_release(self, mock_release):
actual = lockm.cluster_lock_release('C', 'A', 'S')
self.assertEqual(mock_release.return_value, actual)
mock_release.assert_called_once_with('C', 'A', 'S')
