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https://issues.apache.org/jira/browse/YARN-770?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13725739#comment-13725739
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Xuan Gong commented on YARN-770:
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I run several test which used a miniYarn cluster, such as testAMRMClient,
testNMClient. But I did not see that.
> NPE NodeStatusUpdaterImpl
> -------------------------
>
> Key: YARN-770
> URL: https://issues.apache.org/jira/browse/YARN-770
> Project: Hadoop YARN
> Issue Type: Bug
> Components: nodemanager
> Affects Versions: 3.0.0
> Reporter: Steve Loughran
> Priority: Minor
>
> A mini yarn cluster based test just failed -NPE in the logs in
> {{NodeStatusUpdaterImpl}}, which is probably a symptom of the problem, not
> the cause -network trouble more likely there- but it shows there's some extra
> checking for null responses.
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