Share DB instance or lots of separate DB instances?

[Dan Gravell]

In a case where you have MapDB being used by a stand-alone application, within one JVM, is it best to:

... have one global DB instance from which different parts of the app use to create their BTrees/HTrees etc

... have multiple DBs (and multiple files), one for each part of the application

I'm guessing the answer is "it depends". I just noticed there is some scope for sharing resource, e.g. the GC thread is created once per DB.

Dan