I'm sure there is plenty of room for optimizing many things in Mongo. I don't know if secondaries can replicate from each other (if one is behind the other), bu

I'm sure there is plenty of room for optimizing many things in Mongo. I don't know if secondaries can replicate from each other (if one is behind the other), but that would make sense. Mongo is a great product, but there is room for improvement of course.