Rohith Sharma K S created YARN-8679:
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             Summary: [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


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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