Impressive stats for 1 x Varnish - 1 x Nginx/Node.js - 1 x MongoDB architecture. And about MongoDB:
While we tried to make MongoDB non-relational, it almost never worked. TV-Guide data contains several many-to-many relationships, and you simply can’t store them as nested objects. […] What MongoDB really does well, though, is make every JOIN explicit. This encouraged us to denormalize data onto the most specific documents to avoid a second query.
This blog is called myNoSQL and it is written by me, Alex Popescu, a software architect with a passion for open source and communities.
It records my readings, learnings, and opinions on NoSQL databases, polyglot persistence, and distributed systems -- subjects that I'm passionate about.
The opinions expressed here are my own, and no other party necessarily agrees with them.
If you feel I'm biased, I probably am.