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https://issues.apache.org/jira/browse/MAPREDUCE-6220?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14292223#comment-14292223
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Ravi Prakash commented on MAPREDUCE-6220:
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I believe a lot of applications (including oozie) use stdout and stderr for
diagnostics. Unless you can think of a better way to expose these messages I
don't agree we should do this. Closing as Won't Fix
> To forbid stderr and stdout for MapReduce job
> ---------------------------------------------
>
> Key: MAPREDUCE-6220
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-6220
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Components: mrv2
> Affects Versions: 2.6.0
> Reporter: Yang Hao
> Assignee: Yang Hao
> Attachments: MAPREDUCE-6220.patch
>
>
> System.out and System.error is a ugly way to print log, and many times it
> would do harm to Hadoop cluster. So we can forbid it
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