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https://issues.apache.org/jira/browse/KAFKA-16955?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Matthias J. Sax updated KAFKA-16955:
------------------------------------
Fix Version/s: 3.7.2
> ConcurrentModification exception thrown by KafkaStream threadState access
> -------------------------------------------------------------------------
>
> Key: KAFKA-16955
> URL: https://issues.apache.org/jira/browse/KAFKA-16955
> Project: Kafka
> Issue Type: Bug
> Components: streams
> Affects Versions: 3.7.0
> Reporter: Rohan Desai
> Assignee: Rohan Desai
> Priority: Major
> Fix For: 3.9.0, 3.7.2, 3.8.1
>
>
> We see occasional ConcurrentModificationExceptions thrown when accessing
> threadState:
>
>
> {code:java}
> 155.745service_application1 info[ERROR] 2024-06-11 07:56:42.417
> [e2e-de9a85a4-b1d9-4807-bc34-e269f760bcd7-StreamThread-2]
> ResponsiveKafkaStreams - stream-client
> [e2e-de9a85a4-b1d9-4807-bc34-e269f760bcd7] Replacing thread in the streams
> uncaught exception handler155.745service_application1
> infoorg.apache.kafka.streams.errors.StreamsException:
> java.util.ConcurrentModificationException155.745service_application1 info
> at
> org.apache.kafka.streams.processor.internals.StreamThread.runLoop(StreamThread.java:729)
> ~[kafka-streams-3.7.0.jar:?]155.745service_application1 info at
> org.apache.kafka.streams.processor.internals.StreamThread.run(StreamThread.java:645)
> [kafka-streams-3.7.0.jar:?]155.745service_application1 infoCaused by:
> java.util.ConcurrentModificationException155.745service_application1 info at
> java.util.HashMap$HashIterator.nextNode(HashMap.java:1605)
> ~[?:?]155.745service_application1 info at
> java.util.HashMap$ValueIterator.next(HashMap.java:1633)
> ~[?:?]155.745service_application1 info at
> org.apache.kafka.streams.KafkaStreams$StreamStateListener.maybeSetRunning(KafkaStreams.java:656)
> ~[kafka-streams-3.7.0.jar:?]155.745service_application1 info at
> org.apache.kafka.streams.KafkaStreams$StreamStateListener.onChange(KafkaStreams.java:686)
> ~[kafka-streams-3.7.0.jar:?]155.745service_application1 info at
> org.apache.kafka.streams.processor.internals.StreamThread.setState(StreamThread.java:261)
> ~[kafka-streams-3.7.0.jar:?]155.745service_application1 info at
> org.apache.kafka.streams.processor.internals.StreamThread.initializeAndRestorePhase(StreamThread.java:1120)
> ~[kafka-streams-3.7.0.jar:?]155.745service_application1 info at
> org.apache.kafka.streams.processor.internals.StreamThread.runOnceWithoutProcessingThreads(StreamThread.java:921)
> ~[kafka-streams-3.7.0.jar:?]155.745service_application1 info at
> org.apache.kafka.streams.processor.internals.StreamThread.runLoop(StreamThread.java:686)
> ~[kafka-streams-3.7.0.jar:?]155.745service_application1 info ... 1
> more {code}
>
>
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