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Add a failsafe for errors trying to connect to a new leader

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Provide better experience in the face of the class of errors such
as the one fixed by previous commit.
This commit is contained in:
Jarrod Johnson 2021-09-30 08:18:39 -04:00
parent c1113430a2
commit c93917e4a4
1 changed files with 6 additions and 2 deletions
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8
confluent_server/confluent/collective/manager.py
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@ -184,8 +184,12 @@ def follow_leader(remote, leader):
if newleader:
log.log(
{'info': 'Previous leader directed us to join new leader {}'.format(newleader)})
if connect_to_leader(None, get_myname(), newleader):
return
try:
if connect_to_leader(None, get_myname(), newleader):
return
except Exception:
log.log({'error': 'Unknown error attempting to connect to {}, check trace log'.format(newleader), 'subsystem': 'collective'})
cfm.logException()
log.log({'info': 'Current leader ({0}) has disappeared, restarting '
'collective membership'.format(leader), 'subsystem': 'collective'})
# The leader has folded, time to startup again...