[GitHub] [incubator-doris] JinLiOnline opened a new issue #5550: [BE] memtracker中parent和limit显示有歧义

Mon, 22 Mar 2021 00:34:23 -0700 


JinLiOnline opened a new issue #5550:
URL: https://github.com/apache/incubator-doris/issues/5550


   **Describe the bug**
   doris version：0.14-rc3
    BE_IP:BE_HOST/mem_tracker 可以看到详细信息
   
![image](https://user-images.githubusercontent.com/48025020/111951620-e1e39400-8b1e-11eb-9e23-290047206ebc.png)
   
   有些疑惑点，比如：
   1）root节点limit为none
   2）mem_limit 只限制了 ExecEnv Root
   3）在代码中：比如 load channel mgr是根据 ExecEnv中的 
mem_limit来计算的，但在上图中它的父节点是root，却不是ExecEnv root。
   
   
   **Expected behavior**
   我的理解，参数mem_limit限制be总的内存，作为root节点，be其他模块的可用内存上限，从root中继承。
   


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