[dpollack]

We have been using clustrix at AOL for quite a while. You can check their site for our testimonial. We find it to be reliable and easy to use. It requires so little care and feeding we haven't had a full time DBA on our application for several months. We've done consolidations from a sharded MySQL environment to clustrix using nothing more complex than MySQL replication. We also been able to make online schema changes without locking the DB on very large tables in excess of 400 million rows. Support is quite proactive as well both for regular release upgrades as well as features additions and minor bug fixes. We've been in production for more than 2 years and other than minor issues Clustrix has been trouble free.