JVM should not be killed but given an opportunity to exit gracefully
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                 Key: HADOOP-4374
                 URL: https://issues.apache.org/jira/browse/HADOOP-4374
             Project: Hadoop Core
          Issue Type: Bug
          Components: mapred
    Affects Versions: 0.19.0
            Reporter: Devaraj Das
            Assignee: Devaraj Das
             Fix For: 0.20.0


When the tasktracker picks an idle JVM for purging, it should signal the JVM to 
exit gracefully, rather than forcefully killing it. This might have the 
unfortunate side effect of logs not fully flushed yet in some cases.

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