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https://issues.apache.org/jira/browse/HADOOP-2528?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12556110#action_12556110
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Doug Cutting commented on HADOOP-2528:
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> IMHO such extra early checks are not very useful and extra load on the
> server.
This doesn't increase the load over already existing early checks. We already
list the directories, and these listings now contain ownership and permission
information. This patch just checks that information too.
> check permissions for job inputs and outputs
> --------------------------------------------
>
> Key: HADOOP-2528
> URL: https://issues.apache.org/jira/browse/HADOOP-2528
> Project: Hadoop
> Issue Type: Improvement
> Components: mapred
> Reporter: Doug Cutting
> Fix For: 0.16.0
>
> Attachments: HADOOP-2528-0.patch
>
>
> On job submission, filesystem permissions should be checked to ensure that
> the input directory is readable and that the output directory is writable.
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