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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] Commented: (MAPREDUCE-2327) MapTask doesn't need to put username information in SpillRecord
Date Thu, 24 Feb 2011 23:45:38 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-2327?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12999126#comment-12999126
] 

Hadoop QA commented on MAPREDUCE-2327:
--------------------------------------

-1 overall.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12471252/mr-2327.txt
  against trunk revision 1074251.

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

    -1 tests included.  The patch doesn't appear to include any new or modified tests.
                        Please justify why no new tests are needed for this patch.
                        Also please list what manual steps were performed to verify this patch.

    +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 (version 1.3.9) warnings.

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

    +1 core tests.  The patch passed core unit tests.

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

    +1 system test framework.  The patch passed system test framework compile.

Test results: https://hudson.apache.org/hudson/job/PreCommit-MAPREDUCE-Build/26//testReport/
Findbugs warnings: https://hudson.apache.org/hudson/job/PreCommit-MAPREDUCE-Build/26//artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Console output: https://hudson.apache.org/hudson/job/PreCommit-MAPREDUCE-Build/26//console

This message is automatically generated.

> MapTask doesn't need to put username information in SpillRecord
> ---------------------------------------------------------------
>
>                 Key: MAPREDUCE-2327
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-2327
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>    Affects Versions: 0.22.0
>            Reporter: Todd Lipcon
>            Assignee: Todd Lipcon
>            Priority: Blocker
>             Fix For: 0.22.0
>
>         Attachments: mr-2327.txt
>
>
> This is an amendment to MAPREDUCE-2096 that's found in Yahoo's 0.20.100 branch.
> This bug causes task failures in the following case:
> - Cluster is not set up with LinuxTaskController (ie not secured cluster)
> - Job submitter is not the same as the user running the TT
> - Map output is more than one spill's worth
> The issue is that UserGroupInformation's view of the current user is the job submitter,
but on disk the spill files will be owned by the TT user. SecureIO will then fail when constructing
the spill record.

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