Renan DelValle created AURORA-1944:
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Summary: Aurora is unable to elect leader after losing ZK for an
extended period of time
Key: AURORA-1944
URL: https://issues.apache.org/jira/browse/AURORA-1944
Project: Aurora
Issue Type: Bug
Components: Scheduler
Environment: Running on 0.17.0
Reporter: Renan DelValle
Using Apache Curator as the Zookeeper library causes an issue where Aurora is
unable to elect a leader if Zookeeper loses quorum for an extended period of
time.
Scheduler seems to crash around:
{{W0802 14:01:14.436 [TaskEventBatchWorker, SchedulerLifecycle] Failed to leave
leadership: org.apache.aurora.common.zookeeper.SingletonService$LeaveException:
Failed to abdicate leadership of group at /aurora/scheduler }}
When the init system brings the scheduler back up, it is unable to elect a
leader if ZK is still down.
Once the scheduler enters this state, it is unable to snap out of it until it
is manually restarted.
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