jinxiaoyi commented on issue #20813:
URL: https://github.com/apache/pulsar/issues/20813#issuecomment-1637476464

   > > for (int i = 0; i < 200; i++) { 
stringProducer.newMessage().key(UUID.randomUUID().toString()).value("aaaa").send();
 }
   > 
   > Do you want to fix it ?
   in  consumerBase.class
    private void triggerListener() {
           this.internalPinnedExecutor.execute(() -> {
               while(true) {
                   try {
                       Message<T> msg = this.internalReceive(0L, 
TimeUnit.MILLISECONDS);
                       if (msg != null) {
                           if (SubscriptionType.Key_Shared == 
this.conf.getSubscriptionType()) {
                               
this.executorProvider.getExecutor(this.peekMessageKey(msg)).execute(() -> {
                                   this.callMessageListener(msg);
                               });
                           } else {
                               this.getExternalExecutor(msg).execute(() -> {
                                   this.callMessageListener(msg);
                               });
                           }
                       } else if (log.isDebugEnabled()) {
                           log.debug("[{}] [{}] Message has been cleared from 
the queue", this.topic, this.subscription);
                       }
   
                       if (msg != null) {
                           continue;
                       }
                   } catch (PulsarClientException var3) {
                       log.warn("[{}] [{}] Failed to dequeue the message for 
listener", new Object[]{this.topic, this.subscription, var3});
                   }
   
                   return;
               }
           });
       }
   
   may i  delete      if (SubscriptionType.Key_Shared == 
this.conf.getSubscriptionType()) ?


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