viirya edited a comment on pull request #30162:
URL: https://github.com/apache/spark/pull/30162#issuecomment-717630563


   I don't have the numbers exactly for StateStore, but I remember we have some 
numbers for switching shuffle compression codec. @dbtsai Do you remember where 
the numbers are?
   
   At least the bottom line is we should not reply on a single codec for 
storage without any option. For example, assume lz4 codec has any unexpected 
issue, we can change to other codec. For now, users have no other ways.


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