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Posted to jira@kafka.apache.org by "Alan Lau (Jira)" <ji...@apache.org> on 2026/07/06 17:16:00 UTC

[jira] [Created] (KAFKA-20777) StagedMergeIterator throws IllegalStateException instead of InvalidStateStoreException when used after store close

Alan Lau created KAFKA-20777:
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             Summary: StagedMergeIterator throws IllegalStateException instead of InvalidStateStoreException when used after store close
                 Key: KAFKA-20777
                 URL: https://issues.apache.org/jira/browse/KAFKA-20777
             Project: Kafka
          Issue Type: Improvement
          Components: streams
            Reporter: Alan Lau
            Assignee: Alan Lau


When transactional state stores are enabled (enable.transactional.statestores=true), an open StagedMergeIterator that is used after the store is closed throws java.lang.IllegalStateException("Iterator has already been closed.") from StagedMergeIterator.hasNext(), for consistency with the other managed store iterators (e.g. RocksDbIterator), it should throw InvalidStateStoreException.



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