[jira] [Created] (KAFKA-911) Bug in controlled shutdown logic in controller leads to controller not sending out some state change request

["Neha Narkhede (JIRA)" <ji...@apache.org>]

Neha Narkhede created KAFKA-911:
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             Summary: Bug in controlled shutdown logic in controller leads to controller not sending out some state change request 
                 Key: KAFKA-911
                 URL: https://issues.apache.org/jira/browse/KAFKA-911
             Project: Kafka
          Issue Type: Bug
          Components: controller
    Affects Versions: 0.8
            Reporter: Neha Narkhede
            Assignee: Neha Narkhede
            Priority: Blocker


The controlled shutdown logic in the controller first tries to move the leaders from the broker being shutdown. Then it tries to remove the broker from the isr list. During that operation, it does not synchronize on the controllerLock. This causes a race condition while dispatching data using the controller's channel manager.

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