[jira] [Created] (FLINK-8673) Don't let JobManagerRunner shut down itself

[Shang Yuanchun (Jira)]

Till Rohrmann created FLINK-8673:
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             Summary: Don't let JobManagerRunner shut down itself
                 Key: FLINK-8673
                 URL: https://issues.apache.org/jira/browse/FLINK-8673
             Project: Flink
          Issue Type: Improvement
          Components: Distributed Coordination
    Affects Versions: 1.5.0
            Reporter: Till Rohrmann
            Assignee: Till Rohrmann
             Fix For: 1.5.0


Currently, the {{JobManagerRunner}} is allowed to shut down itself in case of a job completion. This, however, can cause problems when the {{Dispatcher}} receives a request for a {{JobMaster}}. If the {{Dispatcher}} is not told about the shut down of the {{JobMaster}} then it might still try to send requests to it. This will lead to time outs.

It would be better to simply let the {{JobManagerRunner}} not shut down itself and defer it to the owner (the {{Dispatcher}}). We can do this by listening on the {{JobManagerRunner#resultFuture}} which is completed by the {{JobManagerRunner}} in case of a successful job completion or a failure. That way we could also get rid of the {{OnCompletionActions}} and the {{FatalErrorHandler}}.



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