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https://issues.apache.org/jira/browse/HADOOP-1982?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12531712
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Enis Soztutar commented on HADOOP-1982:
---------------------------------------

To clarify a bit, the code above is not a patch, just the code in the trunk 
(and in 0.14 branch).  

> TaskTracker provided java.library.path is lost if set in the job.xml
> --------------------------------------------------------------------
>
>                 Key: HADOOP-1982
>                 URL: https://issues.apache.org/jira/browse/HADOOP-1982
>             Project: Hadoop
>          Issue Type: Bug
>          Components: mapred
>         Environment: all
>            Reporter: Alejandro Abdelnur
>            Assignee: Enis Soztutar
>            Priority: Blocker
>             Fix For: 0.14.2
>
>
> if a job 'mapred.child.java.opts' property includes a '-Djava.library.path" 
> option this overrides the one set by the TaskTracker when setting up the 
> taskrunner.
> instead it should append it.

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