showuon opened a new pull request #9627: URL: https://github.com/apache/kafka/pull/9627
This improvement is side effect of this PR: https://github.com/apache/kafka/pull/6972, where we tried to fix flooding number of warning messages but never left group case. So we move the warn logs into the `maybeLeaveGroup` method, and log as INFO level. (https://github.com/apache/kafka/pull/6972/files#diff-15efe9b844f78b686393b6c2e2ad61306c3473225742caed05c7edab9a138832L1092) The INFO log is good when the leaving group is expected, ex: unsubscribe from all topics, consumer close... However, there are some cases that are unexpected, ex: polling timeout, taking too long to read the log, and these cases should be logged as WARN because some Kafka users ignore INFO messages or have the log level set to WARN. ### 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
