Shammon created FLINK-25087:
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             Summary: Move heartbeats from akka to the dedicated thread pool in 
JM
                 Key: FLINK-25087
                 URL: https://issues.apache.org/jira/browse/FLINK-25087
             Project: Flink
          Issue Type: Sub-task
          Components: Runtime / Coordination
    Affects Versions: 1.13.3, 1.12.5, 1.14.0
            Reporter: Shammon


There're heartbeats in jm, such as heartbeat between jm and tm, jm and rm. 
These heartbeats are scheduled in akka thread pool. They should be moved to the 
dedicated thread pool in jm, and job remove them when jm reaches termination.



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