In caching if localizing the cache throws out an error sometimes the task 
failure is not updated
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                 Key: HADOOP-784
                 URL: http://issues.apache.org/jira/browse/HADOOP-784
             Project: Hadoop
          Issue Type: Bug
            Reporter: Mahadev konar
         Assigned To: Mahadev konar


if localize cache throws out an exception the release cache throws out a null 
pointer exception which leads to a situation where the task has failed but it 
is not reported back to the tasktracker. The tasktrakcer still thinks the tasks 
are running and this failure is never communicated to the tasktracker.

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