def run_elect_coordinator(self):
for group_id, hooks in six.iteritems(self._hooks_elected_leader):
leader_lock = self._get_leader_lock(group_id)
if leader_lock.acquire(blocking=False):
# We got the lock
hooks.run(coordination.LeaderElected(group_id,
self._member_id))
def run_elect_coordinator(self):
for group_id, hooks in six.iteritems(self._hooks_elected_leader):
# Try to grab the lock, if that fails, that means someone has it
# already.
leader_lock = self._get_leader_lock(group_id)
if leader_lock.acquire(blocking=False):
# We got the lock
hooks.run(coordination.LeaderElected(group_id,
self._member_id))
def run_elect_coordinator(self):
for group_id in six.iterkeys(self._hooks_elected_leader):
leader_lock = self._get_group_leader_lock(group_id)
if leader_lock.is_acquired:
# Previously acquired/still leader, leave it be...
continue
if leader_lock.acquire(blocking=False):
# We are now leader for this group
self._hooks_elected_leader[group_id].run(
coordination.LeaderElected(group_id, self._member_id))
def run_watchers(self):
ret = []
while True:
try:
cb = self._watchers.get(block=False)
except six.moves.queue.Empty:
break
ret.extend(cb())
for group_id in six.iterkeys(self._hooks_elected_leader):
if self._get_group_leader_lock(group_id).acquire(blocking=False):
# We are now leader for this group
self._hooks_elected_leader[group_id].run(
coordination.LeaderElected(group_id, self._member_id))
return ret
