linyiqun edited a comment on pull request #1459:
URL: https://github.com/apache/hadoop-ozone/pull/1459#issuecomment-708509231


   @lokeshj1703 , seems the original purpose of letting only one transaction 
per container to delete on datanode is to make container block deletion more 
balanced. So the containers will have the similar available space for SCM to 
choose to do block allocation.
   
   But current existed implement is not friendly for the scenario that our 
deleted blocks focus on the same (or very few)containers in the datanode. And 
current PR change is helpful on this scenario. However, I think container block 
allocation should be random, not sure if block deletion on same container case 
is really common and how benefit current change will bring to us. 
   


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