[jira] [Created] (KAFKA-928) new topics may not be processed after ZK session expiration in controller

["Jun Rao (JIRA)" <ji...@apache.org>]

Jun Rao created KAFKA-928:
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             Summary: new topics may not be processed after ZK session expiration in controller
                 Key: KAFKA-928
                 URL: https://issues.apache.org/jira/browse/KAFKA-928
             Project: Kafka
          Issue Type: Bug
          Components: core
    Affects Versions: 0.8
            Reporter: Jun Rao
            Priority: Blocker


When controller loses its ZK session, it calls partitionStateMachine.shutdown in SessionExpirationListener, which marks the partitionStateMachine as down. However, when the controller regains its controllership, it doesn't mark partitionStateMachine as up. In TopicChangeListener, we only process new topics if the partitionStateMachine is marked up.

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