Vinod Kumar Vavilapalli created YARN-3682:

             Summary: Decouple PID-file management from ContainerExecutor
                 Key: YARN-3682
             Project: Hadoop YARN
          Issue Type: Sub-task
            Reporter: Vinod Kumar Vavilapalli
            Assignee: Vinod Kumar Vavilapalli

The PID-files management currently present in ContainerExecutor really doesn't 
belong there. I know the original history of why we added it, that was about 
the only right place to put it in at that point of time.

Given the evolution of executors for Windows etc, the ContainerExecutor is 
getting more complicated than is necessary.

We should pull the PID-file management into its own entity.

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