Simon Willison’s Weblog

What are the advantages and disadvantages of using MongoDB vs CouchDB vs Cassandra vs Redis?

My answer to What are the advantages and disadvantages of using MongoDB vs CouchDB vs Cassandra vs Redis? on Quora

I see Redis as a different category from the other three—kind of like you wouldn’t say “what are the advantages of MySQL v.s. Memcached”. Redis makes an excellent complement to pretty much any other persistent storage mechanism. I expanded on this here: http://simonwillison.net/2009/Oc...