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Posted to jira@kafka.apache.org by "Damian Guy (JIRA)" <ji...@apache.org> on 2017/07/06 09:58:00 UTC

[jira] [Created] (KAFKA-5562) Do streams state directory cleanup on a single thread

Damian Guy created KAFKA-5562:
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             Summary: Do streams state directory cleanup on a single thread
                 Key: KAFKA-5562
                 URL: https://issues.apache.org/jira/browse/KAFKA-5562
             Project: Kafka
          Issue Type: Bug
            Reporter: Damian Guy
            Assignee: Damian Guy


Currently in streams we clean up old state directories every so often (as defined by {{state.cleanup.delay.ms}}). However, every StreamThread runs the cleanup, which is both unnecessary and can potentially lead to race conditions.

It would be better to perform the state cleanup on a single thread and only when the {{KafkaStreams}} instance is in a running state.



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