thetumbled commented on code in PR #24430:
URL: https://github.com/apache/pulsar/pull/24430#discussion_r2165656824


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pulsar-broker/src/main/java/org/apache/pulsar/broker/delayed/InMemoryDelayedDeliveryTracker.java:
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@@ -221,14 +230,13 @@ public NavigableSet<Position> getScheduledMessages(int 
maxMessages) {
     @Override
     public CompletableFuture<Void> clear() {
         this.delayedMessageMap.clear();
+        this.delayedMessagesCount.set(0);

Review Comment:
   Hi, Lari. I have created a pr to check this. But i think it should not be 
set to 0 because of the posibility of concurrent execution. 
   Suppose there is another thread that adds a message to the map after the 
check `if (delayedMessageMap.isEmpty()) {;` in that case, the value should not 
be zero, correct?
   I suggest we had better keep it unchanged and only leave a warning log.



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