chia7712 opened a new pull request #10054: URL: https://github.com/apache/kafka/pull/10054
issue: https://issues.apache.org/jira/browse/KAFKA-12283 It seems to me the new tasks distribution (8, 4, 4) is valid if following conditions are true. 1. all tasks are assigned to (single) alive worker before we re-add workers 2. rebalance is triggered by first re-added worker only (rebalance revokes 8 tasks from alive worker). ### Committer Checklist (excluded from commit message) - [ ] Verify design and implementation - [ ] Verify test coverage and CI build status - [ ] Verify documentation (including upgrade notes) ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org