artemlivshits opened a new pull request, #12570: URL: https://github.com/apache/kafka/pull/12570
Now the built-in partitioner defers partition switch (while still accounting produced bytes) if there is no ready batch to send, thus avoiding switching partitions and creating fractional batches. ### 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. To unsubscribe, e-mail: jira-unsubscr...@kafka.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org