Sen Zhao created YARN-10213:
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Summary: Using curator-leader-elector, rm will always be in
standby state at some times.
Key: YARN-10213
URL: https://issues.apache.org/jira/browse/YARN-10213
Project: Hadoop YARN
Issue Type: Bug
Affects Versions: 3.1.3, 3.2.1
Reporter: Sen Zhao
When we use cursor-leader-elector,
*CuratorBasedElectorService.initAndStartLeaderLatch()*
will initialize and start *leaderLatch* to elect the leader.
Now：
1.ResourceManager will call
*CuratorBasedElectorService.initAndStartLeaderLatch()* in *serviceInit()*.
2.ResourceManager will transition to standby in *serviceStart()*.
If *leaderLatch* succeeds in electing leader before rm transitions to standby.
ResourceManager will always be in standby state.
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