dajac commented on pull request #9353: URL: https://github.com/apache/kafka/pull/9353#issuecomment-701225542
> There is one subtle detail. If we are in the middle of a roll in order to bump the IBP, then it is possible for the controller to be on the latest IBP while some of the brokers are still on the older one. In this case, the brokers on the older IBP will not send AlterIsr, but we can still rely on the delayed notification through the isr_notifications path to complete reassignments. This seems like a reasonable tradeoff since it should be a short window before the roll is completed. I do agree that this is a reasonable tradeoff. ---------------------------------------------------------------- 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