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https://issues.apache.org/jira/browse/YARN-4736?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15195773#comment-15195773
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Sangjin Lee commented on YARN-4736:
-----------------------------------
Dropped a comment on HDFS-15436. Even though there may be nothing we can do on
this, this does sound like a pretty critical issue. We cannot have the hadoop
cluster become unstable when a region server or region servers get into this
state.
> Issues with HBaseTimelineWriterImpl
> -----------------------------------
>
> Key: YARN-4736
> URL: https://issues.apache.org/jira/browse/YARN-4736
> Project: Hadoop YARN
> Issue Type: Sub-task
> Components: timelineserver
> Affects Versions: YARN-2928
> Reporter: Naganarasimha G R
> Assignee: Vrushali C
> Priority: Critical
> Labels: yarn-2928-1st-milestone
> Attachments: NM_Hang_hbase1.0.3.tar.gz, hbaseException.log,
> threaddump.log
>
>
> Faced some issues while running ATSv2 in single node Hadoop cluster and in
> the same node had launched Hbase with embedded zookeeper.
> # Due to some NPE issues i was able to see NM was trying to shutdown, but the
> NM daemon process was not completed due to the locks.
> # Got some exception related to Hbase after application finished execution
> successfully.
> will attach logs and the trace for the same
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