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https://issues.apache.org/jira/browse/KAFKA-9383?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17010242#comment-17010242
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ASF GitHub Bot commented on KAFKA-9383:
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abbccdda commented on pull request #7906: KAFKA-9383: Expose consumer group
metadata
URL: https://github.com/apache/kafka/pull/7906
Expose consumer group metadata to empower transactional producer do offset
commit with more credentials, such as generation.id, member.id and
group.instance.id. The change happens essentially in ConsumerCoordinator where
we maintain an internal reference of the group metadata and update it every
time we are in a rejoin callback. The exposed struct is a deep-copy instead of
the actual object living inside the ConsumerCoordinator to avoid impact from
caller.
### Committer Checklist (excluded from commit message)
- [ ] Verify design and implementation
- [ ] Verify test coverage and CI build status
- [ ] Verify documentation (including upgrade notes)
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> Expose Consumer Group Metadata for Transactional Producer
> ---------------------------------------------------------
>
> Key: KAFKA-9383
> URL: https://issues.apache.org/jira/browse/KAFKA-9383
> Project: Kafka
> Issue Type: Sub-task
> Reporter: Boyang Chen
> Assignee: Boyang Chen
> Priority: Major
>
> As stated in the KIP, we need a mechanism to get latest consumer group
> metadata for proper commit fencing.
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