ableegoldman edited a comment on pull request #10409: URL: https://github.com/apache/kafka/pull/10409#issuecomment-807906627
> When the system is slow, it might not be able to send heartbeat within default 3 seconds Well, it would have to miss ~3 heartbeats in order to trigger a rebalance on the session timeout which is 10 seconds. It's a bit hard to believe that it really can't get a single heartbeat in within 10s, and even if so that only this one test would be affected when most of them rely on the default heartbeat/session interval. Were you seeing that it's continuously rebalancing in the logs? Even if it did have one rebalance due to one missed session interval, it had a full minute to process just a single record. I'm skeptical that the default configs are the problem here, and they may actually mask a real issue if we just blindly increase them. Have you had any luck in reproducing this locally? If we can get full logs, especially debug logs, that will help us confirm the root cause here -- 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
