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[jira] [Created] (FLINK-9912) Release TaskExecutors from SlotPool if all slots have been removd


Till Rohrmann created FLINK-9912:
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             Summary: Release TaskExecutors from SlotPool if all slots have been removd
                 Key: FLINK-9912
                 URL: https://issues.apache.org/jira/browse/FLINK-9912
             Project: Flink
          Issue Type: Improvement
          Components: Distributed Coordination
    Affects Versions: 1.5.1, 1.6.0
            Reporter: Till Rohrmann
            Assignee: Till Rohrmann


Currently, it is possible to fail slot allocations in the {{SlotPool}}. Failing an allocation means that the slot is removed from the {{SlotPool}}. If we have removed all slots from a {{TaskExecutor}}, then we should also release/close the connection to this {{TaskExecutor}}. At the moment, this only happens via the heartbeats if the {{TaskExecutor}} has become unreachable.



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