> If you have more data than a single server can hold the best thing to do is hashing. For instance the Redis-rb client supports consistent hashing. Hopefully

> If you have more data than a single server can hold the best thing to do is hashing. For instance the Redis-rb client supports consistent hashing. Hopefully with a secret salt! It would be interesting if someone nasty managed to take down a node by e.g. predictively registering certain usernames.