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https://issues.apache.org/jira/browse/YARN-4150?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14741338#comment-14741338
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Anubhav Dhoot commented on YARN-4150:
-------------------------------------

This is most likely due to the test reading the node reports before the 
nodemanagers are ready

> Failure in TestNMClient because nodereports were not available
> --------------------------------------------------------------
>
>                 Key: YARN-4150
>                 URL: https://issues.apache.org/jira/browse/YARN-4150
>             Project: Hadoop YARN
>          Issue Type: Bug
>            Reporter: Anubhav Dhoot
>            Assignee: Anubhav Dhoot
>
> Saw a failure in a test run
> https://builds.apache.org/job/PreCommit-YARN-Build/9010/testReport/
> java.lang.IndexOutOfBoundsException: Index: 0, Size: 0
>       at java.util.ArrayList.rangeCheck(ArrayList.java:635)
>       at java.util.ArrayList.get(ArrayList.java:411)
>       at 
> org.apache.hadoop.yarn.client.api.impl.TestNMClient.allocateContainers(TestNMClient.java:244)
>       at 
> org.apache.hadoop.yarn.client.api.impl.TestNMClient.testNMClientNoCleanupOnStop(TestNMClient.java:210)



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