Which persistent in-memory database to use?
teej: > Though I haven't tested...Let's stop there.  "I haven't tested" translates to "premature optimization".  Stop whatever you're doing and measure your task.> I have explored ... but none is close to what I have in mind.It's not surprised that you can't find a perfect solution to your imaginary problem.  Find out exactly what your issue is first, then optimize.  And don't expect to perfectly engineer a system from the ground up.  It's OK to layer in new systems to optimize real bottlenecks in your application.