Re:Show HN: So.ciety, an end-to-end encrypted social network
by Xeoncross on Wednesday December 03, 2014 @02:17PM
(#8695759)
If it's a single server then PostgreSQL would certainly give the best performance considering how invasive MongoDB is. However, I'm sure you'll soon grow to multiple servers so that wouldn't be as big of a problem.
Keep MongoDB on it's own server.