xuesongxs opened a new issue #10705: URL: https://github.com/apache/pulsar/issues/10705
**Is your feature request related to a problem? Please describe.** The producer's asynchronous sending interface is batch sending, and a backlog is a batch of messages. To get the number of messages in the subscription backlog, you can only view the number of batches in the backlog, but not the exact number of messages. Expect to support getting the exact number of messages backlog. -- 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. For queries about this service, please contact Infrastructure at: us...@infra.apache.org
