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https://issues.apache.org/jira/browse/YARN-3995?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15092256#comment-15092256
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Varun Saxena commented on YARN-3995:
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Should we use shutdownNow instead ? We are just removing entry from a map. And
on stop, collectors would be stopped in collector manager stop anyways.
> Some of the NM events are not getting published due race condition when AM
> container finishes in NM
> ----------------------------------------------------------------------------------------------------
>
> Key: YARN-3995
> URL: https://issues.apache.org/jira/browse/YARN-3995
> Project: Hadoop YARN
> Issue Type: Sub-task
> Components: nodemanager, timelineserver
> Affects Versions: YARN-2928
> Reporter: Naganarasimha G R
> Assignee: Naganarasimha G R
> Labels: yarn-2928-1st-milestone
> Attachments: YARN-3995-feature-YARN-2928.v1.001.patch,
> YARN-3995-feature-YARN-2928.v1.002.patch,
> YARN-3995-feature-YARN-2928.v1.003.patch
>
>
> As discussed in YARN-3045: While testing in TestDistributedShell found out
> that few of the container metrics events were failing as there will be race
> condition. When the AM container finishes and removes the collector for the
> app, still there is possibility that all the events published for the app by
> the current NM and other NM are still in pipeline,
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