I just have a general question which I can't seem to find documentation for.

If you have multiple SessionFactories within an application (because you are connecting to multiple databases), is the entire second level cache cleared when any of the SessionFactories are closed?

It appears to be working that way in my application, and I just wanted to know if that is the intention before I spend more time trying to figure out what I'm doing wrong.

Thanks!

Each session factory will clear out its bit. However, its "bit" is defined as all cache regions prefixed with the value you've configured hibernate.cache.region_prefix to be. So in your various .cfg.xml files, set a different value for each region.