absolute8511 opened a new issue, #811: URL: https://github.com/apache/rocketmq-clients/issues/811
### 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-clients/discussions). - [X] I have searched the [GitHub Issues](https://github.com/apache/rocketmq-clients/issues) and [GitHub Discussions](https://github.com/apache/rocketmq-clients/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. ### Programming Language of the Client Go ### Runtime Platform Environment Linux ### RocketMQ Version of the Client/Server newest ### Run or Compiler Version golang 1.20 ### Describe the Bug copy sync.Map will cause the data race, it may report as below  ### Steps to Reproduce running benchmark to send messages for golang and make it sometimes blocked or limited by the server. ### What Did You Expect to See? no panic ### What Did You See Instead? panic as below  ### 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: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
