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https://issues.apache.org/jira/browse/YARN-4169?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Naganarasimha G R updated YARN-4169:
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Attachment: YARN-4169.v1.001.patch
Hi [~ste...@apache.org],
Was able to reproduce this test failure (NPE) during debug testing, and it
was due to improper handling of race condition, basically after sending
{{hearbeat}} we need to wait for a short duration in the test case for the HB
thread in Node status updater, till it goes into wait state. If some sleep is
not added then notify of {{sendOutofBandHeartBeat}} will be called even before
HB thread goes to wait state. Also have corrected other review comments which
you had mentioned.
> jenkins trunk+java build failed in TestNodeStatusUpdaterForLabels
> -----------------------------------------------------------------
>
> Key: YARN-4169
> URL: https://issues.apache.org/jira/browse/YARN-4169
> Project: Hadoop YARN
> Issue Type: Bug
> Components: test
> Affects Versions: 3.0.0
> Environment: Jenkins
> Reporter: Steve Loughran
> Assignee: Naganarasimha G R
> Priority: Critical
> Attachments: YARN-4169.v1.001.patch
>
>
> Test failing in [[Jenkins build
> 402|https://builds.apache.org/view/H-L/view/Hadoop/job/Hadoop-Yarn-trunk-Java8/402/testReport/junit/org.apache.hadoop.yarn.server.nodemanager/TestNodeStatusUpdaterForLabels/testNodeStatusUpdaterForNodeLabels/]
> {code}
> java.lang.NullPointerException: null
> at java.util.HashSet.<init>(HashSet.java:118)
> at
> org.apache.hadoop.yarn.nodelabels.NodeLabelTestBase.assertNLCollectionEquals(NodeLabelTestBase.java:103)
> at
> org.apache.hadoop.yarn.server.nodemanager.TestNodeStatusUpdaterForLabels.testNodeStatusUpdaterForNodeLabels(TestNodeStatusUpdaterForLabels.java:268)
> {code}
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