Nikita Shupletsov created KAFKA-20878:
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Summary: UnsupportedOperationException: This task is read-only
during unclean shutdown
Key: KAFKA-20878
URL: https://issues.apache.org/jira/browse/KAFKA-20878
Project: Kafka
Issue Type: Bug
Components: streams
Affects Versions: 4.0.2
Reporter: Nikita Shupletsov
Under certain circumstances:
[https://github.com/apache/kafka/blob/trunk/streams/src/main/java/org/apache/kafka/streams/processor/internals/TaskManager.java#L1522]
will return a non-empty list, which will cause this exception:
{{{}{}}}{{{}java.lang.UnsupportedOperationException: This task is read-only{}}}
{{ at
org.apache.kafka.streams.processor.internals.ReadOnlyTask.closeDirty(ReadOnlyTask.java:103)}}
{{ at
org.apache.kafka.streams.processor.internals.TaskManager.closeTaskDirty(TaskManager.java:1422)}}
{{ at
org.apache.kafka.streams.processor.internals.TaskManager.shutdownStateUpdater(TaskManager.java:1523)}}
{{ at
org.apache.kafka.streams.processor.internals.TaskManager.shutdown(TaskManager.java:1441)}}
{{ at
org.apache.kafka.streams.processor.internals.StreamThread.completeShutdown(StreamThread.java:1940)}}
{{ at
org.apache.kafka.streams.processor.internals.StreamThread.run(StreamThread.java:962)}}
as {{stateUpdater.tasks()}} returns a list of {{ReadOnlyTask}}
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