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https://issues.apache.org/jira/browse/YARN-10213?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sen Zhao updated YARN-10213:
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Attachment: YARN-10213.002.patch
> 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: 3.2.1, 3.1.3
> Reporter: Sen Zhao
> Assignee: Sen Zhao
> Priority: Major
> Attachments: YARN-10213.001.patch, YARN-10213.002.patch
>
>
> 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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