Andrey Zagrebin created FLINK-13408:
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             Summary: Schedule 
StandaloneResourceManager.setFailUnfulfillableRequest whenever the leadership 
is acquired
                 Key: FLINK-13408
                 URL: https://issues.apache.org/jira/browse/FLINK-13408
             Project: Flink
          Issue Type: Sub-task
          Components: Runtime / Coordination
    Affects Versions: 1.9.0
            Reporter: Andrey Zagrebin
             Fix For: 1.9.0, 1.10.0


We introduced _StandaloneResourceManager.__setFailUnfulfillableRequest_ to give 
some time to task executors to register the available slots before the slot 
requests can be checked whether they can be fulfilled or not. 
_setFailUnfulfillableRequest_ is scheduled now only once when the RM is 
initialised but the task executors will register themselves every time this RM 
gets the leadership. Hence, _setFailUnfulfillableRequest_ should be scheduled 
after each leader election.



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