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https://issues.apache.org/jira/browse/MAPREDUCE-1621?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12926142#action_12926142
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Hudson commented on MAPREDUCE-1621:
-----------------------------------
Integrated in Hadoop-Mapreduce-trunk-Commit #523 (See
[https://hudson.apache.org/hudson/job/Hadoop-Mapreduce-trunk-Commit/523/])
> Streaming's TextOutputReader.getLastOutput throws NPE if it has never read
> any output
> -------------------------------------------------------------------------------------
>
> Key: MAPREDUCE-1621
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-1621
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: contrib/streaming
> Affects Versions: 0.21.0
> Reporter: Todd Lipcon
> Assignee: Amareshwari Sriramadasu
> Fix For: 0.22.0
>
> Attachments: patch-1621.txt
>
>
> If TextOutputReader.readKeyValue() has never successfully read a line, then
> its bytes member will be left null. Thus when logging a task failure,
> PipeMapRed.getContext() can trigger an NPE when it calls
> outReader_.getLastOutput().
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