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https://issues.apache.org/jira/browse/MAPREDUCE-2539?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13057264#comment-13057264
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Hudson commented on MAPREDUCE-2539:
-----------------------------------
Integrated in Hadoop-Mapreduce-trunk #722 (See
[https://builds.apache.org/job/Hadoop-Mapreduce-trunk/722/])
> NPE when calling JobClient.getMapTaskReports for retired job
> ------------------------------------------------------------
>
> Key: MAPREDUCE-2539
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-2539
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: client
> Affects Versions: 0.22.0
> Reporter: Robert Joseph Evans
> Assignee: Robert Joseph Evans
> Attachments: MR-2539-trunk-v1.patch, MR-2539-yarn-v1.patch
>
>
> When calling JobClient.getMapTaskReports for a retired job this results in a
> NPE. In the 0.20.* version an empty TaskReport array was returned instead.
> Caused by: java.lang.NullPointerException
> at
> org.apache.hadoop.mapred.JobClient.getMapTaskReports(JobClient.java:588)
> at
> org.apache.pig.tools.pigstats.JobStats.addMapReduceStatistics(JobStats.java:388)
> ......
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