stefanlee created YARN-7695:
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Summary: when active RM transit to standby , this RM will new
another FairSchedulerUpdate Thread
Key: YARN-7695
URL: https://issues.apache.org/jira/browse/YARN-7695
Project: Hadoop YARN
Issue Type: Bug
Components: fairscheduler, resourcemanager
Affects Versions: 2.4.0
Reporter: stefanlee
1. i test haoop-2.4.0 in my cluster.
2. RM1 is active and RM2 is standby
3. i delete /yarn-leader-election/DevSuningYarn/ActiveStandbyElectorLock from ZK
4. RM1 then transit from active to standby success.
5. at last ,i print RM1 jstack info and found two "AllocationFileReloader" and
two "FairSchedulerUpdateThread" in RM1.
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