Task tracker should wait for the process to exit before declaring the task
successful or failed.
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Key: HADOOP-2375
URL: https://issues.apache.org/jira/browse/HADOOP-2375
Project: Hadoop
Issue Type: Bug
Components: mapred
Reporter: Owen O'Malley
Currently when a task declares it is done, the status in the task tracker is
changed immediately. Instead it should wait for the subprocess to actually be
done before it moves to one of the final states. This lead to a race condition
where the task was still generating log data after the job tracker had reported
the task as done.
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