piddubnyi opened a new pull request #9017: URL: https://github.com/apache/kafka/pull/9017
KAFKA-8582 Indicates that there is a need to handle *late* messages, which arrive when respective aggregation window (including grace period) is already closed. There is also respective [SO question](https://stackoverflow.com/questions/62370180/kafka-stream-time-and-window-expire-kstreamsessionwindowaggregate-skipping-rec), where @mjsax mentions following options for handling late messages: - start new app to rests stream time - fall back to the Processor API and basically re-implement aggregation logic manually. This PR tries to add an ability to forward such *late* messages to a configurable deadLetterTopic. ### 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: [email protected]
