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https://issues.apache.org/jira/browse/MAPREDUCE-2757?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13090757#comment-13090757
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Jonathan Eagles commented on MAPREDUCE-2757:
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Good catch! It looks like it is also using qualified paths in the tests. I
started a patch for the local dir allocator allowing qualified paths. My
hesitation is that after starting the patch for allowing schemas, local dir
allocator stopped allowing relative paths. Do you have any suggestion on what
direction to go. It seems that both can help the problem. Please advise.
> [MR-279] Redundant "file:" directory created in appcache
> ---------------------------------------------------------
>
> Key: MAPREDUCE-2757
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-2757
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: mrv2
> Affects Versions: 0.23.0
> Reporter: Ramya Sunil
> Assignee: Jonathan Eagles
> Priority: Minor
> Fix For: 0.23.0
>
> Attachments: MAPREDUCE-2757-trunk-v1.patch
>
>
> A redundant directory called "file:" is being created under
> ${yarn.server.nodemanager.local-dir}/usercache/${username}/appcache/appID
> which further has a directory structure
> ${yarn.server.nodemanager.local-dir}/usercache/${username}/(appcache|filecache)/appID/filecache
> which is empty.
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