"But last year, CouchDB was the future. Today it's Cassandra. In a few months, it could well be MongoDB or Redis." There's a reason you didn't see Twitter swit

"But last year, CouchDB was the future. Today it's Cassandra. In a few months, it could well be MongoDB or Redis." There's a reason you didn't see Twitter switching to CouchDB last year, and the reason is Cassandra is the only one of those four that does scale-out. So... no, "one of these things is not like the others." "That doesn't make it the official strategy" It makes it their only strategy at all to make it past the vapor stage. I'm not a Drizzle expert, but I do work with the core Drizzle team.