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From "Ravi Prakash (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-6220) Provide option to forbid stdout of MapReduce task
Date Fri, 10 Apr 2015 05:49:13 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-6220?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14488971#comment-14488971
] 

Ravi Prakash commented on MAPREDUCE-6220:
-----------------------------------------

Hi Yang! Thanks! The patch is now a lot more palatable. Is there a reason why you want to
suppress stdout? What do you mean by "harm to the Hadoop cluster"? If you are worried about
the number of log files, then a slightly different approach is being taken : YARN-2942 . Would
that be an acceptable solution for you?
If it were just me, I wouldn't be opposed to this patch getting committed, but I would like
to see what the other members of the community think about this.

> Provide option  to forbid stdout of MapReduce task
> --------------------------------------------------
>
>                 Key: MAPREDUCE-6220
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-6220
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>          Components: mrv2
>            Reporter: Yang Hao
>            Assignee: Yang Hao
>         Attachments: MAPREDUCE-6220.patch, MAPREDUCE-6220.v2.patch
>
>
> System.out is a ugly way to print log, and many times it would do harm to Hadoop cluster.
So we can provide an option to forbid it



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