TangSiyang2001 opened a new issue, #28564:
URL: https://github.com/apache/doris/issues/28564

   ### Search before asking
   
   - [X] I had searched in the 
[issues](https://github.com/apache/doris/issues?q=is%3Aissue) and found no 
similar issues.
   
   
   ### Description
   
   
![image](https://github.com/apache/doris/assets/82279870/5065055a-c0eb-4ff9-a632-fe3e3577f0a2)
   
   CPU
   
![image](https://github.com/apache/doris/assets/82279870/a72fa520-24c9-423c-a560-59cd98ee76b4)
 
   
![image](https://github.com/apache/doris/assets/82279870/44595c70-2835-4f16-ae16-841808ef10c2)
 
   
![image](https://github.com/apache/doris/assets/82279870/eb3c4fa3-82da-46d1-8b78-c7ad7126484a)
   
   Mem
   
![image](https://github.com/apache/doris/assets/82279870/0ded63db-e221-44f7-9fc4-59536059deb2)
 
   
![image](https://github.com/apache/doris/assets/82279870/c535883e-6aa2-4ce5-a3f2-f4719451bb7b)
 
   
![image](https://github.com/apache/doris/assets/82279870/64180717-94bb-4e57-8770-6ed20da91376)
   
   
   
   
   ### Solution
   
   Actually, the node the heavy resource overhead is suffering from the back 
pressure of the add batch RPC, due to the low responce from the target BE which 
is add batching.
   
   Finally, we found that the read lock for checking broken tablet (writers) 
maybe inreasonable and add to the overhead, making it very slow but with a very 
light behavior.
   
   ### 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)
   


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