import time import uuid import six from tooz import coordination ALIVE_TIME = 1 coordinator = coordination.get_coordinator('kazoo://localhost', b'host-1') coordinator.start() # Create a group group = six.binary_type(six.text_type(uuid.uuid4()).encode('ascii')) request = coordinator.create_group(group) request.get() # Join a group request = coordinator.join_group(group) request.get() def when_i_am_elected_leader(event): # event is a LeaderElected event print(event.group_id, event.member_id) # Propose to be a leader for the group coordinator.watch_elected_as_leader(group, when_i_am_elected_leader) start = time.time() while time.time() - start < ALIVE_TIME: coordinator.heartbeat() coordinator.run_watchers() time.sleep(0.1) coordinator.stop()