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https://issues.apache.org/jira/browse/YARN-4505?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15070941#comment-15070941
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Varun Saxena commented on YARN-4505:
------------------------------------
Well the NPE is due to TimelineWriter being null and class TimelineWriter and
its implementations have been added in YARN-4234.
So its quite clearly broken because of YARN-4234.
Refer to code below. NPE is thrown at return statement.
{code}
@Override
public TimelinePutResponse putEntities(
TimelineEntity... entities) throws IOException, YarnException {
return timelineWriter.putEntities(entities);
}
{code}
> 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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