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Rohith Sharma K S commented on YARN-4169: ----------------------------------------- Hi [~Naganarasimha], Quickly gone through the patch.. some comments. # I see many sleep int the tests. I have doubt that just adding sleep would solve random failure permanently. Again it depends on the machine it is running and other several factors. If wants to check NodeStausUpdator is in waiting state, probably can get thread state OR wait for thread state. # Not related to this JIRA, can you add timeout for the tests. > 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, YARN-4169.v1.002.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} -- This message was sent by Atlassian JIRA (v6.3.4#6332)