[jira] [Created] (KAFKA-5937) Improve ProcessorStateManager exception handling

["Matthias J. Sax (JIRA)" <ji...@apache.org>]

Matthias J. Sax created KAFKA-5937:
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             Summary: Improve ProcessorStateManager exception handling
                 Key: KAFKA-5937
                 URL: https://issues.apache.org/jira/browse/KAFKA-5937
             Project: Kafka
          Issue Type: Sub-task
          Components: streams
    Affects Versions: 0.11.0.0, 0.11.0.1
            Reporter: Matthias J. Sax
            Assignee: Matthias J. Sax


We identified the follow issues:

- constructor calls {{StateDirectory#directoryForTask() }} and wraps throw ProcessorStateException with LockException and rethrows -> we should not change the exception type here
- {{ProcessorStateManager#close()}} loops through all stores and calls {{StateStore#close()}}; it catches {{Exception}} and moves on to close all stores -> rethrows first exception eventually as-is -> we should wrap with {{ProcessotStateException}} before rethrowing
- {{ProcessorStateManager#flush()}} loops through all stores and calls {{StateStore#flush()}}; it stops on first {{Exception}} -> we should keep looping and flush all remaining stores before rethrowing at the end




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