[GitHub] [pulsar] lordcheng10 commented on a change in pull request #14970: [fix][broker] The offline consumer is not removed from the consumerList

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lordcheng10 commented on a change in pull request #14970:
URL: https://github.com/apache/pulsar/pull/14970#discussion_r840189904



##########
File path: pulsar-broker/src/main/java/org/apache/pulsar/broker/service/persistent/PersistentDispatcherMultipleConsumers.java
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@@ -163,12 +163,17 @@ protected boolean isConsumersExceededOnSubscription() {
         return isConsumersExceededOnSubscription(topic, consumerList.size());
     }
 
+    private void removeAllConsumer(Consumer consumer){
+        while(consumerList.remove(consumer)){
+        }
+    }
+    
     @Override
     public synchronized void removeConsumer(Consumer consumer) throws BrokerServiceException {
         // decrement unack-message count for removed consumer
         addUnAckedMessages(-consumer.getUnackedMessages());
         if (consumerSet.removeAll(consumer) == 1) {
-            consumerList.remove(consumer);
+            removeAllConsumer(consumer);

Review comment:
       Fixed:
   1.do a check in addConsumer;
   2.use removeIf;
   
   PTAL,thanks! @lhotari 




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