mjsax commented on code in PR #15419: URL: https://github.com/apache/kafka/pull/15419#discussion_r1500165337
########## clients/src/main/java/org/apache/kafka/clients/consumer/internals/HeartbeatRequestManager.java: ########## @@ -546,8 +546,9 @@ public ConsumerGroupHeartbeatRequestData buildRequestData() { data.setMemberEpoch(membershipManager.memberEpoch()); // InstanceId - only sent if has changed since the last heartbeat Review Comment: For my own education? How can `group.instance.id` change? Isn't it provide by the user via a config, and configs are immutable? -- 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