dongnuo123 opened a new pull request, #20581: URL: https://github.com/apache/kafka/pull/20581
Cherry-pick KAFKA-19546 to 4.1. During online downgrade, when a static member using the consumer protocol which is also the last member using the consumer protocol is replaced by another static member using the classic protocol with the same instance id, the latter will take the assignment of the former and an online downgrade will be triggered. In the current implementation, if the replacing static member has a different subscription, no rebalance will be triggered when the downgrade happens. The patch checks whether the static member has changed subscription and triggers a rebalance when it does. Reviewers: Sean Quah <[email protected]>, David Jacot <[email protected]> Delete this text and replace it with a detailed description of your change. The PR title and body will become the squashed commit message. If you would like to tag individuals, add some commentary, upload images, or include other supplemental information that should not be part of the eventual commit message, please use a separate comment. If applicable, please include a summary of the testing strategy (including rationale) for the proposed change. Unit and/or integration tests are expected for any behavior change and system tests should be considered for larger changes. -- 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. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
