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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] Commented: (MAPREDUCE-896) Users can set non-writable permissions on temporary files for TT and can abuse disk usage.
Date Tue, 22 Dec 2009 09:32:29 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-896?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12793566#action_12793566
] 

Hadoop QA commented on MAPREDUCE-896:
-------------------------------------

-1 overall.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12428696/MR-896.v6.patch
  against trunk revision 893055.

    +1 @author.  The patch does not contain any @author tags.

    +1 tests included.  The patch appears to include 9 new or modified tests.

    +1 javadoc.  The javadoc tool did not generate any warning messages.

    +1 javac.  The applied patch does not increase the total number of javac compiler warnings.

    +1 findbugs.  The patch does not introduce any new Findbugs warnings.

    +1 release audit.  The applied patch does not increase the total number of release audit
warnings.

    -1 core tests.  The patch failed core unit tests.

    -1 contrib tests.  The patch failed contrib unit tests.

Test results: http://hudson.zones.apache.org/hudson/job/Mapreduce-Patch-h6.grid.sp2.yahoo.net/331/testReport/
Findbugs warnings: http://hudson.zones.apache.org/hudson/job/Mapreduce-Patch-h6.grid.sp2.yahoo.net/331/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Checkstyle results: http://hudson.zones.apache.org/hudson/job/Mapreduce-Patch-h6.grid.sp2.yahoo.net/331/artifact/trunk/build/test/checkstyle-errors.html
Console output: http://hudson.zones.apache.org/hudson/job/Mapreduce-Patch-h6.grid.sp2.yahoo.net/331/console

This message is automatically generated.

> 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: 0.21.0
>
>         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, 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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