[GitHub] [thrift] ferrirW edited a comment on pull request #2533: THRIFT-5494: fix cpu full caused by infinite select() when frameSize < maxReadBufferBytes but readBufferBytesAllocated.get() + frameSize always greater than MAX_READ_BUFFER_BYTES

Sun, 06 Mar 2022 20:56:34 -0800 


ferrirW edited a comment on pull request #2533:
URL: https://github.com/apache/thrift/pull/2533#issuecomment-1060145988


   Actually, I think this problem also exist in the latest version. But I don't 
have much time to reproduce. So If anyone else is experiencing this problem, 
they can try use this PR (and limit frame size to a reasonable value) to fix it.
   
   The problem phenomenon:
   1. CPU is full
   2. Most time consumed on SelectorThread.select()
   3. FrameBuffer.read() ends quickly at "if (frameSize > 
MAX_READ_BUFFER_BYTES))"
   
   
![image](https://user-images.githubusercontent.com/42178996/156961356-04b149c2-0b0e-4bde-8249-232a9d5d770e.png)
   


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