[jira] [Created] (YARN-4747) AHS error 500 due to NPE when container start event is missing

[Jason Lowe (JIRA)]

Jason Lowe created YARN-4747:
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             Summary: AHS error 500 due to NPE when container start event is 
missing
                 Key: YARN-4747
                 URL: https://issues.apache.org/jira/browse/YARN-4747
             Project: Hadoop YARN
          Issue Type: Bug
          Components: timelineserver
    Affects Versions: 2.7.2
            Reporter: Jason Lowe


Saw an error 500 due to a NullPointerException caused by a missing host for an 
AM container.  Stacktrace to follow.



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