- From PostgreSQL to Cassandra, In Four Easy Steps (Axel Eirola and Jarrod Creado, LabDev, F-Secure) In this presentation Axel and Jarrod will tell you the tale of our Network Reputation System Live Migration ( PostgreSQL to Cassandra ). F-Secure Network Reputation System is a core element of the protection we provide to our customers. It consists of URLs and other network related metadata, used to make fast assessments regarding their reputation. Currently the Network Reputation System database contains hundreds of millions of URLs. More info about Cassandra @ F-Secure? http://www.planetcassandra.com/blog/post/apache-cassandra-at-f-secure