Steve Loughran created YARN-2597:
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             Summary: MiniYARNCluster doesn't propagate reason for AHS not 
starting
                 Key: YARN-2597
                 URL: https://issues.apache.org/jira/browse/YARN-2597
             Project: Hadoop YARN
          Issue Type: Bug
          Components: test
    Affects Versions: 3.0.0
            Reporter: Steve Loughran


If the AHS doesn't come up, your test run gets an exception telling you this 
fact -but the underlying cause is not propagated.

As YARN services do record their failure cause, extracting and propagating this 
is trivial.



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