> 2. These distributed databases like Cassandra, MongoDB, and CouchDB[3] aren't actually very scalable or stable. Twitter apparently has been trying to move from MySQL to Cassandra for over a year. When someone reports using one of these systems as their primary data store for over 1000 machines for over a year, I'll reconsider my opinion on this.
Are there facts to back up what he says about MongoDB for example or is this just FUD.
Are there facts to back up what he says about MongoDB for example or is this just FUD.