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Posted to jira@kafka.apache.org by "Rohan Desai (Jira)" <ji...@apache.org> on 2024/06/13 23:28:00 UTC
[jira] [Assigned] (KAFKA-16955) ConcurrentModification exception thrown by KafkaStream threadState access
[ https://issues.apache.org/jira/browse/KAFKA-16955?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Rohan Desai reassigned KAFKA-16955:
-----------------------------------
Assignee: Rohan Desai
> 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
>
> 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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