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https://issues.apache.org/jira/browse/MAPREDUCE-2915?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13134978#comment-13134978
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Kihwal Lee commented on MAPREDUCE-2915:
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Sorry, I misread the code in trunk/0.23. They do have a similar problem. 
MAPREDUCE-3259 has been filed.
                
> LinuxTaskController does not work when JniBasedUnixGroupsNetgroupMapping or 
> JniBasedUnixGroupsMapping is enabled
> ----------------------------------------------------------------------------------------------------------------
>
>                 Key: MAPREDUCE-2915
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-2915
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: task-controller
>    Affects Versions: 0.20.205.0
>            Reporter: Kihwal Lee
>            Assignee: Kihwal Lee
>             Fix For: 0.20.205.0
>
>         Attachments: linux_tc_fix.patch.txt, mr-2915.patch.txt
>
>
> When a job is submitted, LinuxTaskController launches the native 
> task-controller binary for job initialization. The native program does a 
> series of prep work and call execv() to run JobLocalizer.  It was observed 
> that JobLocalizer does fails to run when JniBasedUnixGroupsNetgroupMapping or 
> JniBasedUnixGroupsMapping is enabled, resulting in 100% job failures.
> JobLocalizer normally does not need the native library (libhadoop) for its 
> functioning, but enabling a JNI user-to-group mapping function cause it to 
> load the library. However, JobLocalizer cannot locate the library since 
> "java.library.path" is not set.
> The proposed solution is to pass the java.library.path property through 
> task-controller. LinuxTaskController already does it when launching the task 
> log truncater.

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