### Search before asking - [X] I had searched in the [issues](https://github.com/apache/doris/issues?q=is%3Aissue) and found no similar issues. ### Version 2.0.2-rc5 release ### What's Wrong? be mem_tracker global  query  load  实际机器内存be使用情况  无法理解这些这些内存使用在那些地方 并且不释放 导致执行一些查询直接OOM 重启集群后一段时间就变成这样 ### What You Expected? 产生原因 ### How to Reproduce? _No response_ ### Anything Else? _No response_ ### Are you willing to submit PR? - [X] Yes I am willing to submit a PR! ### Code of Conduct - [X] I agree to follow this project's [Code of Conduct](https://www.apache.org/foundation/policies/conduct)