[I] RocketMQ Error sending asynchronous message. However, the synchronization message is normal [rocketmq]

[via GitHub]

chent199 opened a new issue, #8415:
URL: https://github.com/apache/rocketmq/issues/8415

   ### Before Creating the Bug Report
   
   - [X] I found a bug, not just asking a question, which should be created in 
[GitHub Discussions](https://github.com/apache/rocketmq/discussions).
   
   - [X] I have searched the [GitHub 
Issues](https://github.com/apache/rocketmq/issues) and [GitHub 
Discussions](https://github.com/apache/rocketmq/discussions)  of this 
repository and believe that this is not a duplicate.
   
   - [X] I have confirmed that this bug belongs to the current repository, not 
other repositories of RocketMQ.
   
   
   ### Runtime platform environment
   
   ubuntu 22.04.2
   docker 26.1.4
   
   
   ### RocketMQ version
   
   rocketmq 4.9.6
   <dependency>
         <groupId>org.apache.rocketmq</groupId>
         <artifactId>rocketmq-client</artifactId>
         <version>4.9.6</version>
      </dependency>
   
   ### JDK Version
   
   1.8.0
   
   ### Describe the Bug
   
   RocketMQ Error sending asynchronous message. However, the synchronization 
message is normal 
   
   e = 发送失败:java.lang.IllegalStateException: 
org.apache.rocketmq.remoting.exception.RemotingConnectException: connect to 
[IP:9876] failed
   
   ### Steps to Reproduce
   
   import org.apache.rocketmq.client.exception.MQBrokerException;
   import org.apache.rocketmq.client.exception.MQClientException;
   import org.apache.rocketmq.client.producer.DefaultMQProducer;
   import org.apache.rocketmq.client.producer.SendCallback;
   import org.apache.rocketmq.client.producer.SendResult;
   import org.apache.rocketmq.common.message.Message;
   import org.apache.rocketmq.remoting.exception.RemotingException;
   
   public class AsyncProducer {
       public static void main(String[] args) throws MQClientException, 
RemotingException, InterruptedException, MQBrokerException {
   
               DefaultMQProducer defaultMQProducer = new 
DefaultMQProducer("group1");
               defaultMQProducer.setNamesrvAddr("localhost:9876");
               defaultMQProducer.start();
               defaultMQProducer.setRetryTimesWhenSendAsyncFailed(30);
               Message message = new 
Message("topic","tag",("hello,rocketmq").getBytes());
   //            defaultMQProducer.send(message);
               defaultMQProducer.send(message, new SendCallback() {
                   @Override
                   public void onSuccess(SendResult sendResult) {
                       System.out.println("发送成功:"+sendResult);
                   }
   
                   @Override
                   public void onException(Throwable e) {
                       System.out.println("e = " + "发送失败:"+e);
   
                   }
               });
               defaultMQProducer.shutdown();
   
   
       }
   }
   run the code and failed
   
   ### What Did You Expect to See?
   
   print success_info
   
   ### What Did You See Instead?
   
   e = 发送失败:java.lang.IllegalStateException: 
org.apache.rocketmq.remoting.exception.RemotingConnectException: connect to 
[IP:9876] failed
   
   ### Additional Context
   
   _No response_


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