> Not sure if this was mentioned, but MongoDB is strongly consistent while > Cassandra is eventually consistent -- at least about a month ago when I > looked at it in more detail, though with vector clocks in 0.7, this may be > less of an issue.
Did Mongo switch away from the "fsync() every now and then, let's hope broken values don't parse as bson" consistency semantics? Last time I looked mongodb, which was admittedly more than a single month ago, you definitely did not want it if you cared about strong consistency in the sense of durability: http://groups.google.com/group/mongodb-user/browse_thread/thread/460dbd49a5b6b267/daca5d5155d7e66e -- / Peter Schuller aka scode
