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From "Amareshwari Sriramadasu (JIRA)" <j...@apache.org>
Subject [jira] Commented: (MAPREDUCE-1186) While localizing a DistributedCache file, TT sets permissions recursively on the whole base-dir
Date Tue, 15 Dec 2009 05:53:18 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-1186?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12790573#action_12790573
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Amareshwari Sriramadasu commented on MAPREDUCE-1186:
----------------------------------------------------

bq. Move securing the cache file path in the same code path as where localization of the cache
files happens.
We should do this for the correctness part, as Hemanth pointed out. 

Hemanth, if we are doing the above, current directory structure is still fine, right?  We
need not introduce task-id in the directory structure. The patch will be replacing current
FileUtil.chmod call with the call to TaskController.  Does it make sense?

> While localizing a DistributedCache file, TT sets permissions recursively on the whole
base-dir
> -----------------------------------------------------------------------------------------------
>
>                 Key: MAPREDUCE-1186
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-1186
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: tasktracker
>    Affects Versions: 0.21.0
>            Reporter: Vinod K V
>            Assignee: Amareshwari Sriramadasu
>             Fix For: 0.21.0
>
>         Attachments: patch-1186-1.txt, patch-1186-3-ydist.txt, patch-1186-3-ydist.txt,
patch-1186-ydist.txt, patch-1186-ydist.txt, patch-1186.txt
>
>
> This is a performance problem.

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