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https://issues.apache.org/jira/browse/YARN-5315?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15522182#comment-15522182
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Jian He commented on YARN-5315:
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[~sandflee], I think your first patch is fine. In the 2nd patch, calling
awaitTermination will not help this situation, it only prolongs the stop phase
if there were any pending task. Is my understanding right ?
> Standby RM keep sending start am container request to NM
> --------------------------------------------------------
>
> Key: YARN-5315
> URL: https://issues.apache.org/jira/browse/YARN-5315
> Project: Hadoop YARN
> Issue Type: Bug
> Components: resourcemanager
> Reporter: sandflee
> Assignee: sandflee
> Attachments: YARN-5315.01.patch, YARN-5315.02.patch
>
>
> 1, network partitions, RM couldn't connect to NMs and start AM request pending
> 2, RM becomes standby, int ApplicatioinMasterLauncher#serviceStop,
> launcherPool are shutdown. the launching thread are interrupted, but start AM
> request may still left in Queue
> 3,network reconnect, standby RM sends start AM request to NM.
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