[PR] [Draft] KAFKA-17317 another implementation without scheduled downgrade task [kafka]

["dongnuo123 (via GitHub)" <gi...@apache.org>]

dongnuo123 opened a new pull request, #17306:
URL: https://github.com/apache/kafka/pull/17306

   This implementation doesn't change the existing downgrade path.
   
   In `classicGroupJoinToConsumerGroup`, if the group should be downgraded, it will be converted to a classic group at the end of the method. The returned records will be the records from GroupJoin plus the records from conversion. No rebalance will be triggered in the newly converted group.
   
   ### 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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Re: [PR] [Draft] KAFKA-17317 another implementation without scheduled downgrade task [kafka]

["mumrah (via GitHub)" <gi...@apache.org>]

mumrah commented on PR #17306:
URL: https://github.com/apache/kafka/pull/17306#issuecomment-2380653830

   @dongnuo123, just to let you know -- we just merged a change where WIP/Draft PRs will avoid running the test suite by being the in draft state. 


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