cmccabe commented on code in PR #19454: URL: https://github.com/apache/kafka/pull/19454#discussion_r2042533671
########## metadata/src/main/java/org/apache/kafka/controller/ClusterControlManager.java: ########## @@ -309,8 +309,10 @@ public void activate() { long nowNs = time.nanoseconds(); for (BrokerRegistration registration : brokerRegistrations.values()) { heartbeatManager.register(registration.id(), registration.fenced()); - heartbeatManager.tracker().updateContactTime( - new BrokerIdAndEpoch(registration.id(), registration.epoch()), nowNs); + if (!registration.fenced()) { + heartbeatManager.tracker().updateContactTime( Review Comment: > is my interpretation correct? in the single-node demonstration/test case I would assume it's unlikely that a broker takes a long time to shutdown cleanly and catch up on metadata - so they would still run into the duplicate broker id exception In the single node case, the controller process is restarted, so the in-memory cache is cleared. -- 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