[jira] [Created] (FLINK-8665) Allow RpcEndpoint#postStop to complete asynchronously

[Shang Yuanchun (Jira)]

Till Rohrmann created FLINK-8665:
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             Summary: Allow RpcEndpoint#postStop to complete asynchronously
                 Key: FLINK-8665
                 URL: https://issues.apache.org/jira/browse/FLINK-8665
             Project: Flink
          Issue Type: Sub-task
          Components: Distributed Coordination
    Affects Versions: 1.5.0
            Reporter: Till Rohrmann
            Assignee: Till Rohrmann
             Fix For: 1.5.0


Every {{RpcEndpoint}} should have the possibility to trigger asynchronous clean up operations in its {{RpcEndpoint#postStop}} method. In order to do that the {{postStop}} method should return a {{CompletableFuture<Void>}} which is completed once all post stop actions have finished. The {{RpcEndpoint#terminationFuture}} will only be completed afterwards.



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