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https://issues.apache.org/jira/browse/KAFKA-9734?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17063449#comment-17063449
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ASF GitHub Bot commented on KAFKA-9734:
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vvcephei commented on pull request #8319: KAFKA-9734: Fix IllegalState in
Streams transit to standby
URL: https://github.com/apache/kafka/pull/8319
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> Streams IllegalStateException in trunk during rebalance
> -------------------------------------------------------
>
> Key: KAFKA-9734
> URL: https://issues.apache.org/jira/browse/KAFKA-9734
> Project: Kafka
> Issue Type: Bug
> Components: streams
> Reporter: John Roesler
> Assignee: John Roesler
> Priority: Major
>
> I have observed the following exception to kill a thread in the current trunk
> of Streams:
> {noformat}
> [2020-03-19 07:04:35,206] ERROR
> [stream-soak-test-e60443b4-aa2d-4107-abf7-ce90407cb70e-StreamThread-1]
> stream-thread [stream-soak-test-e60443b4-aa
> 2d-4107-abf7-ce90407cb70e-StreamThread-1] Encountered the following exception
> during processing and the thread is going to shut down:
> (org.apache.kafka.streams.processor.internals.StreamThread)
> java.lang.IllegalStateException: The changelog reader is not restoring active
> tasks while trying to transit to update standby tasks: {}
> at
> org.apache.kafka.streams.processor.internals.StoreChangelogReader.transitToUpdateStandby(StoreChangelogReader.java:303)
>
>
> at
> org.apache.kafka.streams.processor.internals.StreamThread.runOnce(StreamThread.java:582)
> at
> org.apache.kafka.streams.processor.internals.StreamThread.runLoop(StreamThread.java:498)
> at
> org.apache.kafka.streams.processor.internals.StreamThread.run(StreamThread.java:472){noformat}
> Judging from the fact that the standby tasks are reported as an empty set, I
> think this is just a missed case in the task manager. PR to follow shortly.
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