Siddharth Seth created TEZ-1965:
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             Summary: LocalContainerLauncher should interrupt running tasks 
rather than using Future.cancel
                 Key: TEZ-1965
                 URL: https://issues.apache.org/jira/browse/TEZ-1965
             Project: Apache Tez
          Issue Type: Improvement
            Reporter: Siddharth Seth


Future.cancel causes the future.get() to throw a CancellationException - which 
effectively ends up ignoring any exceptions which may have been thrown by just 
Interrupting the task. That casues the NPE from TEZ-1962 to get lost.



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