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From "Eron Wright (JIRA)" <j...@apache.org>
Subject [jira] [Created] (FLINK-7472) Release task managers gracefully
Date Thu, 17 Aug 2017 21:37:00 GMT
Eron Wright  created FLINK-7472:
-----------------------------------

             Summary: Release task managers gracefully
                 Key: FLINK-7472
                 URL: https://issues.apache.org/jira/browse/FLINK-7472
             Project: Flink
          Issue Type: Sub-task
            Reporter: Eron Wright 


When a task manager is no longer needed (e.g. due to idle timeout in slot manager), the RM
should gracefully stop it without spurious warnings.   While implies some actions should be
taken before the TM is actually killed.   Proactive steps include stopping the heartbeat monitor
and sending a disconnect message.   

It is unclear whether `RM::closeTaskManagerConnection` method should be called proactively
(when we plan to kill a TM), reactively (after the TM is killed), or both.  



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