zuston commented on PR #1758:
URL: 
https://github.com/apache/incubator-uniffle/pull/1758#issuecomment-2138944231

   > In which scenario do you expect the block number to disalign? What are you 
trying to guard against here? One side we add block ids and on the other side 
we retrieve block ids. You suspect incorrect usage of the API by the client or 
a bug server side? Sounds like that should be guarded against by testing so we 
are confident, not in production runtime.
   
   We suspect the race condition may exist on the process of reporting shuffle 
result, which may cause the blockId miss. But this is not determinzed, and so I 
want to introduce the extra blockId counter check for every partition. Anyway, 
fast fail is better than the silcent incorrect succeed.


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