TaskTracker provided java.library.path is lost if set in the job.xml
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                 Key: HADOOP-1982
                 URL: https://issues.apache.org/jira/browse/HADOOP-1982
             Project: Hadoop
          Issue Type: Bug
          Components: mapred
         Environment: all
            Reporter: Alejandro Abdelnur
            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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