nytai edited a comment on pull request #18181:
URL: https://github.com/apache/superset/pull/18181#issuecomment-1040942605


   +1 on @john-bodley's concerns. I've been suffering some of the effects the 
long URL problem and I'm happy to see it being worked on, but I agree this 
design raises some concerns. Particularly troubling is that the files system 
cache seems to be the default, so users going to upgrade superset would likely 
discover this issue after deploying. Certain deployment setups involve running 
a single pod/host for dev/test/staging envs and multiple pods for production, 
so having the file system cache be the default would not present any issues in 
a single pod/host environment but would be a huge issue in multi-pod/multi-host 
environment. The form data request could get routed to a pod/host that does not 
have the data in file system cache.  
   
   Additionally, this introduces a hard requirement on a cache service, where 
one didn't exist before (superset works fine with no cache configs). Storing in 
the metadata db seems like a better choice given that dependency has always 
existed.


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