shenweiran opened a new issue, #18381: URL: https://github.com/apache/pulsar/issues/18381
### Search before asking - [X] I searched in the [issues](https://github.com/apache/pulsar/issues) and found nothing similar. ### Version 2.9.3 ### Minimal reproduce step There is a namespace msgBacklog that was added in the last two days ### What did you expect to see? My guess is that msgBacklog should only be a static value, since no client is consuming it and there is no impact on broker performance. ### What did you see instead?  After executing the command ：after clear back-log pulsar-admin topics clear-backlog ...  ### Anything else? _No response_ ### Are you willing to submit a PR? - [ ] I'm willing to submit a PR! -- 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: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
