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https://issues.apache.org/jira/browse/MAPREDUCE-1582?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12905852#action_12905852
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Johannes Zillmann commented on MAPREDUCE-1582:
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Its the 0.20 version which is patched, not sure if it differs ffrom 0.21, 
0.22...

> JobClient#monitorAndPrintJob() should use logger for logging taskDiagnostics
> ----------------------------------------------------------------------------
>
>                 Key: MAPREDUCE-1582
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-1582
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>          Components: job submission
>            Reporter: Johannes Zillmann
>            Priority: Minor
>         Attachments: MAPREDUCE-1582.patch
>
>
> In JobClient#monitorAndPrintJob() (around line 1324 in version 0.20.1) the 
> exception of tasktrackers are printed via system.err.
> Using LOG.error() instead would make capturing the logs easier !

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