cmccabe commented on code in PR #15945:
URL: https://github.com/apache/kafka/pull/15945#discussion_r1618865130
##########
metadata/src/main/java/org/apache/kafka/controller/ClusterControlManager.java:
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@@ -407,6 +407,13 @@ public ControllerResult<BrokerRegistrationReply>
registerBroker(
setBrokerEpoch(brokerEpoch).
setRack(request.rack()).
setEndPoints(listenerInfo.toBrokerRegistrationRecord());
+
+ if (existing != null &&
request.incarnationId().equals(existing.incarnationId())) {
Review Comment:
Amending registrations doesn't require a specific MV. We may want to do this
for other reasons besides JBOD in the future.
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