Files
tooz/examples/leader_election.py
Riccardo Pittau 5ac72fcb3d Remove six library
The tooz project doesn't support Python 2 anymore, using the
six library should not be necessary.

Change-Id: I9886cabcd13cbc615065ceb372efbf037dff1aeb
2020-07-01 15:56:53 +02:00

35 lines
738 B
Python

import time
import uuid
from tooz import coordination
ALIVE_TIME = 1
coordinator = coordination.get_coordinator('zake://', b'host-1')
coordinator.start()
# Create a group
group = bytes(str(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()