In my last posts on eventual consistency, I mentioned that R+W>N guarantees consistency. Thanks to commentator senderista for pointing that this statement does not hold in the case of sloppy quorums. The Amazon Dynamo article describes sloppy quorum as such:…

In previous posts, I explored MongoDB and Redis. MongoDB, a document-oriented database, allows developers to work with JSON documents in interesting ways. Redis offers developers a set of fundamental data structures upon which to build applications. Riak, in contrast, offers…