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From "Allen Wittenauer (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-3000) Move /mapred to /user/mapred for Hadoop 0.20.205
Date Tue, 13 Sep 2011 17:53:09 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-3000?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13103829#comment-13103829
] 

Allen Wittenauer commented on MAPREDUCE-3000:
---------------------------------------------

Why?  

Moving a system directory into the middle of the users is going to make manipulating quotas
MUCH harder, especially for high population grids.

It sounds like 203 shipping with /user/mapred is a bug, not this one.

> Move /mapred to /user/mapred for Hadoop 0.20.205
> ------------------------------------------------
>
>                 Key: MAPREDUCE-3000
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-3000
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: build
>    Affects Versions: 0.20.205.0
>         Environment: Java 6, RHEL 5.6
>            Reporter: Eric Yang
>            Assignee: Eric Yang
>             Fix For: 0.20.205.0
>
>
> /mapred directory should be default to /user/mapred.  Owen request this to be changed
for RPM deployment in 0.20.204.  This is a regression in 0.20.205 that /user/mapred is configured
back to /mapred.

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