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https://issues.apache.org/jira/browse/MAPREDUCE-3000?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13104686#comment-13104686
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Eli Collins commented on MAPREDUCE-3000:
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The default has been ${hadoop.tmp.dir}/mapred/system (/user/mapred) for a long
time. Per Allen, why does it make sense to put the mapred system dir in a home
directory? That doesn't make sense to me either.
> 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
>
> Attachments: MAPREDUCE-3000.patch
>
>
> /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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