cmccabe commented on code in PR #19454:
URL: https://github.com/apache/kafka/pull/19454#discussion_r2042533671
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metadata/src/main/java/org/apache/kafka/controller/ClusterControlManager.java:
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@@ -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.
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