linlinnn commented on a change in pull request #10352:
URL: https://github.com/apache/pulsar/pull/10352#discussion_r625564953



##########
File path: 
pulsar-client/src/main/java/org/apache/pulsar/client/impl/ConsumerImpl.java
##########
@@ -1292,17 +1280,15 @@ void receiveIndividualMessagesFromBatch(MessageMetadata 
msgMetadata, int redeliv
                 if (possibleToDeadLetter != null) {
                     possibleToDeadLetter.add(message);
                 }
-                lock.readLock().lock();
-                try {
+                internalPinnedExecutor.execute(() -> {
                     if (peekPendingReceive() != null) {
                         notifyPendingReceivedCallback(message, null);
                     } else if (enqueueMessageAndCheckBatchReceive(message) && 
hasPendingBatchReceive()) {
                         notifyPendingBatchReceivedCallBack();
                     }
-                } finally {
-                    lock.readLock().unlock();
-                }
-                singleMessagePayload.release();
+                    singleMessagePayload.release();
+                    tryTriggerListener();

Review comment:
       You put `triggerListener` into the 
[cycle](https://github.com/apache/pulsar/blob/c1517ffbe21f767a1147633f71e0bc0153b5a7db/pulsar-client/src/main/java/org/apache/pulsar/client/impl/ConsumerImpl.java#L1240)
   




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