schlichtanders commented on issue #6808:
URL: https://github.com/apache/hudi/issues/6808#issuecomment-1310552112

   thank you for the remarks. It is good to know that a derby client setup 
works for local testing, while being more lightweight than postgres. We usually 
have one spark hudi job which creates/updates also hive tables and this we want 
to test locally.
   
   Question:
   is it really not possible to use the derby `memory` subprotocol (it is our 
preferred option for local tests)?
   - If it is not possible, then Hudi should throw a descriptive error message. 
Instead it pretends to have worked correctly, while no hive sync was done at all
   - if it is possible that would be really awesome (databricks delta e.g. 
supports it), as the test is then automatically fully independent of others 
(with a client setup you cannot run the tests in parallel easily, you need to 
be super careful about the ports, and filesystem)
   
   
   


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