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https://issues.apache.org/jira/browse/YARN-8679?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16583923#comment-16583923
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Rohith Sharma K S commented on YARN-8679:
-----------------------------------------
Attaching a patch which relaxes a strict synchronization in
PerNodeTimelineCollectorsAuxService for the operations initializeContainer()
and removeApplicationCollector().
[~sunilg] Can you please review the patch?
> [ATSv2] If HBase cluster is down, high chances that NM ContainerManager
> dispatcher get blocked
> ----------------------------------------------------------------------------------------------
>
> Key: YARN-8679
> URL: https://issues.apache.org/jira/browse/YARN-8679
> Project: Hadoop YARN
> Issue Type: Bug
> Reporter: Rohith Sharma K S
> Assignee: Rohith Sharma K S
> Priority: Major
> Attachments: YARN-8679.01.patch
>
>
> It is observed that if ATSv2 back end is down and client wait for few
> minutes, then NM ContainerManager dispatcher thread is blocked. As a result,
> NM containers operations are stuck in event processing.
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