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Message-ID: <1430197411.1262005769446.JavaMail.jira@brutus.apache.org>
Date: Mon, 28 Dec 2009 13:09:29 +0000 (UTC)
From: "Hemanth Yamijala (JIRA)" <jira@apache.org>
To: mapreduce-issues@hadoop.apache.org
Subject: [jira] Updated: (MAPREDUCE-896) Users can set non-writable
 permissions on temporary files for TT and can abuse disk usage.
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     [ https://issues.apache.org/jira/browse/MAPREDUCE-896?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Hemanth Yamijala updated MAPREDUCE-896:
---------------------------------------

       Resolution: Fixed
    Fix Version/s:     (was: 0.21.0)
                   0.22.0
     Hadoop Flags: [Reviewed]
           Status: Resolved  (was: Patch Available)

I committed this to trunk. Thanks, Ravi !

> Users can set non-writable permissions on temporary files for TT and can abuse disk usage.
> ------------------------------------------------------------------------------------------
>
>                 Key: MAPREDUCE-896
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-896
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: tasktracker
>    Affects Versions: 0.21.0
>            Reporter: Vinod K V
>            Assignee: Ravi Gummadi
>             Fix For: 0.22.0
>
>         Attachments: MR-896.patch, MR-896.v1.patch, MR-896.v2.patch, MR-896.v3.patch, MR-896.v4.patch, MR-896.v5.patch, MR-896.v6.patch, MR-896.v7.patch, MR-896.v8.patch, y896.v1.patch, y896.v2.1.fix.patch, y896.v2.1.fix.v1.patch, y896.v2.1.fix.v2.patch, y896.v2.1.patch, y896.v2.patch
>
>
> As of now, irrespective of the TaskController in use, TT itself does a full delete on local files created by itself or job tasks. This step, depending upon TT's umask and the permissions set by files by the user, for e.g in job-work/task-work or child.tmp directories, may or may not go through successful completion fully. Thus is left an opportunity for abusing disk space usage either accidentally or intentionally by TT/users.

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