[jira] [Created] (KAFKA-12982) Notify listeners of raft client shutdowns

["Jose Armando Garcia Sancio (Jira)" <ji...@apache.org>]

Jose Armando Garcia Sancio created KAFKA-12982:
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             Summary: Notify listeners of raft client shutdowns
                 Key: KAFKA-12982
                 URL: https://issues.apache.org/jira/browse/KAFKA-12982
             Project: Kafka
          Issue Type: Sub-task
            Reporter: Jose Armando Garcia Sancio


`RaftClient.Listener.beginShutdown` should be called when the `RaftClient` is shutting down. I think there should be two ways to terminate the `RaftClient`. Those are `shutdown` and `close`.

It looks like the current code for `close` only closes the metrics registry. It doesn't notify the listeners that the raft client was close. It doesn't stop future `poll` from updating the raft client.

There is also an assumption that `shutdown` can only be called once. I think to satisfy this we should remove this method from `RaftClient` and keep it as implementation method in `KafkaRaftClient`.



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