Junping Du created YARN-4274:

             Summary: NodeStatusUpdaterImpl should register to RM again after a 
non-fatal exception happen before
                 Key: YARN-4274
                 URL: https://issues.apache.org/jira/browse/YARN-4274
             Project: Hadoop YARN
          Issue Type: Improvement
            Reporter: Junping Du
            Assignee: Junping Du

>From YARN-3896, an non-fatal exception like response ID mismatch between NM 
>and RM (due to a race condition) will cause NM stop working. I think we should 
>make it more robust to tolerant a few times failure in registering to RM.

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