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ASF GitHub Bot commented on KAFKA-8509: --------------------------------------- hachikuji commented on pull request #7724: KAFKA-8509; Add downgrade system test URL: https://github.com/apache/kafka/pull/7724 This patch adds a basic downgrade system test, which validates producing and consuming continues working before and after the downgrade. ### 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 > Add downgrade system tests > -------------------------- > > Key: KAFKA-8509 > URL: https://issues.apache.org/jira/browse/KAFKA-8509 > Project: Kafka > Issue Type: Improvement > Components: system tests > Reporter: Jason Gustafson > Assignee: Jason Gustafson > Priority: Major > > We've been bitten a few times by downgrade incompatibilities. It should be > straightforward to adapt our current upgrade system tests to support > downgrades as well. The basic procedure should be: > # Roll the cluster with the updated binary, keep IBP on old version > # Verify produce/consume > # Roll the cluster with the old binary, keep IBP the same. > # Verify produce/consume -- This message was sent by Atlassian Jira (v8.3.4#803005)