yx9o opened a new issue, #8539: URL: https://github.com/apache/rocketmq/issues/8539
### 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 Linux ### RocketMQ version 4.9.8 ### JDK Version jdk 1.8 ### Describe the Bug I want to implement master-slave switching through commands. After the master stops, I change the slave configuration to master. The offset produced is not continuous, which means that the data during the period of catching up with the consumption progress cannot be consumed. <img width="672" alt="image" src="https://github.com/user-attachments/assets/16171068-910b-4e28-9e7d-c3d7cd4d70d6"> <img width="893" alt="image" src="https://github.com/user-attachments/assets/9a0fea30-9a69-489a-819b-1ec174cd159c"> <img width="400" alt="image" src="https://github.com/user-attachments/assets/7a6daeb6-7fa3-4a6a-ae1d-22c930a94922"> <img width="888" alt="image" src="https://github.com/user-attachments/assets/500ab1b6-6ae6-48f2-a8fe-598b47f419a4"> ### Steps to Reproduce 1. Run a group of master-slave production and consumption data 2. Stop the master and change the slave configuration to the master through commands 3. The offset of the production message seen at this time is not continuous, while the offset of consumption is continuous ### What Did You Expect to See? After the slave node switches to the master, the offset produced is continuous. ### What Did You See Instead? The offset produced is not continuous. ### 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