[bendmorris]

Why did you choose Redis in the first place?

Redis does have its own (official but not at a stable release yet) cluster implementation. (http://redis.io/topics/cluster-spec) I'm not sure how production ready it is - has anyone here tried it?

[Oculus]

Twitter probably runs the largest Redis cluster in the world[1]. It's certainly doable, but depends how much engineering resources you're willing to throw at the problem.

1 - http://youtu.be/rP9EKvWt0zo

Edit: I should point out that this was before Redis Clustering was built into core. I'm trying to say the problem is solvable, but difficult.