UPDATE (25 July 2013) I closed the project because it was consuming a lot of resources for not special result. It was merely a test of cassandra. BTW, Cassandra didn’t have any problem handling the load generated by this project. It went very smoothly. UPDATE (07 Nov 2011) I reworked the same project with a totally different architecture. I used Java/Servlet/Glassfish + Cassandra. It’s just a test project to see how I could apply this kind of NoSQL DB to other projects, so it’s really simple.