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Posted to dev@kafka.apache.org by "Bill Bejeck (JIRA)" <ji...@apache.org> on 2018/05/01 22:27:00 UTC

[jira] [Created] (KAFKA-6844) Race condition between StreamThread and GlobalStreamThread stopping

Bill Bejeck created KAFKA-6844:
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             Summary: Race condition between StreamThread and GlobalStreamThread stopping
                 Key: KAFKA-6844
                 URL: https://issues.apache.org/jira/browse/KAFKA-6844
             Project: Kafka
          Issue Type: Bug
          Components: streams
    Affects Versions: 1.0.1, 1.1.0, 1.0.0
            Reporter: Bill Bejeck
            Assignee: Bill Bejeck
             Fix For: 2.0.0


There can be a race condition where shut down is called on a StreamThread then shut down is called on a GlobalStreamThread, but the StreamThread can be delayed in shutting down,  and the GlobalStreamThread can shutdown first.

 

If the StreamThread tries to access a GlobalStateStore before closing the user can get an exception stating  "..{{Store xxx is currently closed "}}

Here's a redacted partial log file showing this process:

{{2018-04-23 12:54:10 [INFO] [logger] DataExportTopology:86 - Closing streams}}
{{2018-04-23 12:54:10 [INFO] [logger] KafkaStreams:346 - stream-client [redacted-info] State transition from RUNNING to PENDING_SHUTDOWN}}
{{2018-04-23 12:54:10 [INFO] [logger] StreamThread:336 - stream-thread [redacted-info-StreamThread-1] Informed to shut down}}
{{2018-04-23 12:54:10 [INFO] [logger] StreamThread:346 - stream-thread [redacted-info-StreamThread-1] State transition from RUNNING to PENDING_SHUTDOWN}}
{{2018-04-23 12:54:10 [INFO] [logger] StreamThread:336 - stream-thread [redacted-info-StreamThread-2] Informed to shut down}}
{{2018-04-23 12:54:10 [INFO] [logger] StreamThread:346 - stream-thread [redacted-info-StreamThread-2] State transition from RUNNING to PENDING_SHUTDOWN}}
{{2018-04-23 12:54:10 [INFO] [logger] StreamThread:336 - stream-thread [redacted-info-StreamThread-3] Informed to shut down}}
{{2018-04-23 12:54:10 [INFO] [logger] StreamThread:346 - stream-thread [redacted-info-StreamThread-3] State transition from RUNNING to PENDING_SHUTDOWN}}
{{2018-04-23 12:54:10 [INFO] [logger] StreamThread:336 - stream-thread [redacted-info-StreamThread-4] Informed to shut down}}
{{2018-04-23 12:54:10 [INFO] [logger] StreamThread:346 - stream-thread [redacted-info-StreamThread-4] State transition from RUNNING to PENDING_SHUTDOWN}}
{{2018-04-23 12:54:10 [INFO] [logger] GlobalStreamThread:346 - global-stream-thread [redacted-info-GlobalStreamThread] State transition from RUNNING to PENDING_SHUTDOWN}}
{{2018-04-23 12:54:10 [INFO] [logger] StreamThread:336 - stream-thread [redacted-info-StreamThread-4] Shutting down}}
{{2018-04-23 12:54:10 [INFO] [logger] StreamThread:336 - stream-thread [redacted-info-StreamThread-1] Shutting down}}
{{2018-04-23 12:54:10 [INFO] [logger] GlobalStreamThread:336 - global-stream-thread [redacted-info-GlobalStreamThread] Shutting down}}
{{2018-04-23 12:54:10 [WARN] [logger] StatsDReporter:121 - KafkaStatsDReporter is disabled}}
{{2018-04-23 12:54:10 [INFO] [logger] GlobalStreamThread:346 - global-stream-thread [redacted-info-GlobalStreamThread] State transition from PENDING_SHUTDOWN to DEAD}}
{{2018-04-23 12:54:10 [INFO] [logger] GlobalStreamThread:336 - global-stream-thread [redacted-info-GlobalStreamThread] Shutdown complete}}
{{2018-04-23 12:54:10 [INFO] [logger] StreamThread:336 - stream-thread [redacted-info-StreamThread-2] Shutting down}}



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