[GitHub] [incubator-doris] acelyc111 opened a new issue #3398: Make DorisMetrics class in BE to be a real singleton

[GitBox <gi...@apache.org>]

acelyc111 opened a new issue #3398:
URL: https://github.com/apache/incubator-doris/issues/3398


   **Is your feature request related to a problem? Please describe.**
   Current implemantion of class DorisMetrics is not a real singleton, but we use it as a singleton. Some usage may cause problem, especially in unit tests, like concurrently calls of `initialize()` may cause memory problems; metrics will be duplicate registered in `initialize()`, etc. I found these problems when run unit tests in ASAN mode.
   
   **Describe the solution you'd like**
   Make DorisMetrics class to be a real singleton before run unit tests in ASAN mode.


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