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Posted to dev@kafka.apache.org by "Matthias J. Sax (Jira)" <ji...@apache.org> on 2020/03/21 01:02:30 UTC

[jira] [Created] (KAFKA-9741) ConsumerCoordinator must update ConsumerGroupMetadata before calling onPartitionsRevoked()

Matthias J. Sax created KAFKA-9741:
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             Summary: ConsumerCoordinator must update ConsumerGroupMetadata before calling onPartitionsRevoked()
                 Key: KAFKA-9741
                 URL: https://issues.apache.org/jira/browse/KAFKA-9741
             Project: Kafka
          Issue Type: Bug
          Components: consumer
    Affects Versions: 2.5.0
            Reporter: Matthias J. Sax


If partitions are revoked, an application may want to commit the current offsets.

Using transactions, committing offsets would be done via the producer passing in the current `ConsumerGroupMetadata`. If the metadata is not updates before the callback, the call to `commitTransaction(...)` fails as and old generationId would be used.



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