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Posted to dev@kafka.apache.org by "Damian Guy (JIRA)" <ji...@apache.org> on 2016/12/20 09:53:58 UTC

[jira] [Created] (KAFKA-4561) Ordering of operations in StreamThread.shutdownTasksAndState may void at-least-once guarantees

Damian Guy created KAFKA-4561:
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             Summary: Ordering of operations in StreamThread.shutdownTasksAndState may void at-least-once guarantees
                 Key: KAFKA-4561
                 URL: https://issues.apache.org/jira/browse/KAFKA-4561
             Project: Kafka
          Issue Type: Bug
          Components: streams
    Affects Versions: 0.10.2.0
            Reporter: Damian Guy
            Assignee: Damian Guy
             Fix For: 0.10.2.0


In {{shutdownTasksAndState}} we currently commit offsets as the first step. If a subsequent step throws an exception, i.e, flushing the producer, then this would violate the at-least-once guarantees.
We need to commit after all other state has been flushed



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