smallemployees opened a new issue, #7972: URL: https://github.com/apache/rocketmq/issues/7972
### 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 centos7.9 ### RocketMQ version 4.9.5 ### JDK Version _No response_ ### Describe the Bug I tried upgrading RocketMQ in place and found that the data directory was empty, but the web interface showed information about the topic and consumption group ### Steps to Reproduce Does the RocketMQ element support physical migration? If the message is empty, will the commitLog store information about the topic? ### What Did You Expect to See? Can we perform metadata migration ### What Did You See Instead? Can we perform metadata migration ### 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