def follow_leader(remote):
global currentleader
cfm.follow_channel(remote)
# The leader has folded, time to startup again...
cfm.stop_following()
currentleader = None
eventlet.spawn_n(start_collective)
def follow_leader(remote, leader):
global currentleader
cleanexit = False
try:
cfm.follow_channel(remote)
except greenlet.GreenletExit:
cleanexit = True
finally:
if cleanexit:
log.log({
'info': 'Previous following cleanly closed',
'subsystem': 'collective'
})
return
log.log({
'info':
'Current leader ({0}) has disappeared, restarting '
'collective membership'.format(leader),
'subsystem':
'collective'
})
# The leader has folded, time to startup again...
cfm.stop_following()
currentleader = None
eventlet.spawn_n(start_collective)
def follow_leader(remote, leader):
global currentleader
global retrythread
global follower
cleanexit = False
newleader = None
try:
exitcause = cfm.follow_channel(remote)
newleader = exitcause.get('newleader', None)
except greenlet.GreenletExit:
cleanexit = True
finally:
if cleanexit:
log.log({
'info': 'Previous following cleanly closed',
'subsystem': 'collective'
})
return
if newleader:
log.log({
'info':
'Previous leader directed us to join new leader {}'.format(
newleader)
})
if connect_to_leader(None, get_myname(), newleader):
return
log.log({
'info':
'Current leader ({0}) has disappeared, restarting '
'collective membership'.format(leader),
'subsystem':
'collective'
})
# The leader has folded, time to startup again...
follower = None
cfm.stop_following()
currentleader = None
if retrythread is None: # start a recovery
retrythread = eventlet.spawn_after(random.random(),
start_collective)