slfan1989 commented on PR #6404:
URL: https://github.com/apache/hadoop/pull/6404#issuecomment-1878445162

   @simbadzina Thanks for helping review the code! 
   
   @LiuGuH Thanks for the contribution! but I think it's better if we don't 
introduce a new one if the original one works. Personally, I'm worried about 
the synchronization state of a single thread, it doesn't seem to be a good 
design. If some boundaries occur (such as NN restart, hang, etc.), how do we 
deal with it? If we are going to design a more complex mechanism to handle 
boundary issues, I think it is better to use the mechanisms that are already 
available.


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