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From "Varun Saxena (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-4505) TestJobHistoryEventHandler.testTimelineEventHandling fails on trunk because of NPE
Date Thu, 24 Dec 2015 12:53:49 GMT

    [ https://issues.apache.org/jira/browse/YARN-4505?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15070968#comment-15070968

Varun Saxena commented on YARN-4505:

I am not suggesting that there is something wrong written in YARN-4234 either.

What I meant by broken, is that test case was working without changes in YARN-4234 but its
not working now after YARN-4234.
And I know its only because our Jenkins cannot run test cases in another module(MR in this
case) if code changes are in some other module(YARN here).
Otherwise this would have been easily caught in YARN-4234. 

This is similar to YARN-4379 which was broken due to HADOOP-12584(a hadoop common change)
or that MiniYarnCluster change in YARN-2859 which broke a few test cases...
We will keep on getting test cases failing like this till we do not get any mechanism in Jenkins
to somehow run dependent test cases.

I do not have a strong opinion on whether we should fix it in this JIRA or in YARN-4234 itself.
You can either fix it here or give an addendum patch on YARN-4234. Your call. 

> TestJobHistoryEventHandler.testTimelineEventHandling fails on trunk because of NPE
> ----------------------------------------------------------------------------------
>                 Key: YARN-4505
>                 URL: https://issues.apache.org/jira/browse/YARN-4505
>             Project: Hadoop YARN
>          Issue Type: Bug
>            Reporter: Tsuyoshi Ozawa
>            Assignee: Naganarasimha G R
> https://builds.apache.org/job/Hadoop-Mapreduce-trunk-Java8/824/
> {code}
> Tests run: 13, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 21.163 sec <<<
FAILURE! - in org.apache.hadoop.mapreduce.jobhistory.TestJobHistoryEventHandler
> testTimelineEventHandling(org.apache.hadoop.mapreduce.jobhistory.TestJobHistoryEventHandler)
 Time elapsed: 5.115 sec  <<< ERROR!
> java.lang.NullPointerException: null
> 	at org.apache.hadoop.yarn.client.api.impl.TimelineClientImpl.putEntities(TimelineClientImpl.java:331)
> 	at org.apache.hadoop.mapreduce.jobhistory.JobHistoryEventHandler.processEventForTimelineServer(JobHistoryEventHandler.java:1015)
> 	at org.apache.hadoop.mapreduce.jobhistory.JobHistoryEventHandler.handleEvent(JobHistoryEventHandler.java:586)
> 	at org.apache.hadoop.mapreduce.jobhistory.TestJobHistoryEventHandler.handleEvent(TestJobHistoryEventHandler.java:722)
> 	at org.apache.hadoop.mapreduce.jobhistory.TestJobHistoryEventHandler.testTimelineEventHandling(TestJobHistoryEventHandler.java:510)
> {code}

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