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https://issues.apache.org/jira/browse/MAPREDUCE-4293?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ravi Gummadi updated MAPREDUCE-4293:
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Attachment: 4293.patch
Attaching patch with the trivial fix.
> Rumen TraceBuilder gets NPE some times
> --------------------------------------
>
> Key: MAPREDUCE-4293
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-4293
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: tools/rumen
> Reporter: Ravi Gummadi
> Assignee: Ravi Prakash
> Attachments: 4293.patch
>
>
> Rumen TraceBuilder's JobBuilder.processTaskFailedEvent throws NPE if
> failedDueToAttempt is not available in history.
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