cshuo commented on PR #18821:
URL: https://github.com/apache/hudi/pull/18821#issuecomment-4532338505

   > @cshuo Thanks for the comments. According to our internal system, we need 
to allow two operators use the same RocksDB instance. The change is to unblock 
the capability.
   
   Could you share a bit more detail on why the two operators need to use the 
same RocksDB instance? Is there a concrete limitation/error with using separate 
RocksDB instances today,  or is the main motivation performance/resource 
optimization?
   
   This distinction matters because sharing one RocksDB instance changes the 
ownership model and introduces extra requirements around thread safety and 
lifecycle management, so it would be helpful to document the actual constraint 
this PR is unblocking.


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