amoeba commented on issue #38617:
URL: https://github.com/apache/arrow/issues/38617#issuecomment-1899434302

   Yeah, I think that's the situation we want to cover here. 
   
   I was originally thinking this could just be built into FlightClient and not 
the entire DLL/module:  Save the PID when we create a FlightClient, do a 
PID-check either on every RPC or in a background thread like it appears fsspec 
does, and raise an Exception when the PID doesn't match. My reasoning for 
putting the check just in FlightClient was to limit the impact to just where we 
expect the check to be useful since we the two methods have overhead. Would 
remembering the PID at DLL load or module import work better?


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