lhotari commented on code in PR #24096:
URL: https://github.com/apache/pulsar/pull/24096#discussion_r2009862855


##########
pulsar-broker/src/main/java/org/apache/pulsar/broker/service/persistent/PersistentDispatcherMultipleConsumers.java:
##########
@@ -362,10 +362,6 @@ public synchronized void readMoreEntries() {
         Position markDeletePosition = cursor.getMarkDeletedPosition();
         if (lastMarkDeletePositionBeforeReadMoreEntries != markDeletePosition) 
{
             redeliveryMessages.removeAllUpTo(markDeletePosition.getLedgerId(), 
markDeletePosition.getEntryId());
-            for (Consumer consumer : consumerList) {
-                consumer.getPendingAcks()
-                        .removeAllUpTo(markDeletePosition.getLedgerId(), 
markDeletePosition.getEntryId());
-            }

Review Comment:
   > After you run 
ConsumerAckAndDisableBrokerBatchAckTest.testAcknowledgeConcurrently more than 
200 times, you will get an issue, which was leads by these lines
   
   @poorbarcode What issue exactly happened?
   How are pending acks removed (in the case of message expiration) if this 
code is being removed? That's something that you should address in this PR if 
you prefer to remove this code in this PR.



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