Siddharth Seth created TEZ-2336:
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             Summary: Inform containers of dag completion
                 Key: TEZ-2336
                 URL: https://issues.apache.org/jira/browse/TEZ-2336
             Project: Apache Tez
          Issue Type: Improvement
            Reporter: Siddharth Seth


Containers may need to cleanup intermediate data generated by tasks. This can 
be cleaned up when the container is used by a different DAG, or can be cleaned 
by sending a signal to containers about dagCompletion via the heartbeat / some 
other protocol.



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