yuz10 opened a new issue, #8725: URL: https://github.com/apache/rocketmq/issues/8725
### 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 24.04 ### RocketMQ version 5.3.0 ### JDK Version 1.8.0 ### Describe the Bug Start the DefaultMQPushConsumer with wrong nameserver address, consumer threads are still running after start fail. ### Steps to Reproduce start the DefaultMQPushConsumer with wrong nameserver address: ``` public static void main(String[] args) throws InterruptedException, MQClientException { DefaultMQPushConsumer consumer = new DefaultMQPushConsumer("consumerGroup"); consumer.setNamesrvAddr("1.0.0.1:9876"); consumer.subscribe("test", "*"); consumer.registerMessageListener((MessageListenerConcurrently) (msgs, context) -> { return ConsumeConcurrentlyStatus.CONSUME_SUCCESS; }); try { consumer.start(); } catch (Exception e) { e.printStackTrace(); System.out.printf("state: %s", consumer.getDefaultMQPushConsumerImpl().getServiceState()); } } ``` ### What Did You Expect to See? 1、the consumer.start() method throws exception. 2、the state of getDefaultMQPushConsumerImpl is running. 3、the consumer threads "PullMessageService", "RebalaceService" are running, so the process will not exit after main function exits. ### What Did You See Instead? 1、the consumer.start() method throws exception. 2、the state of getDefaultMQPushConsumerImpl is not running. 3、the consumer threads are not running. ### Additional Context _No response_ -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: commits-unsubscr...@rocketmq.apache.org.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org