> "Dunlop, Aaron" wrote: > > [...] > First: We will need to cluster application servers in front of a central database. > We want the ability to add and remove servers from that farm in real-time, > without disturbing ongoing sessions. That either means storing sessions remotely > in the central DB, or migrating sessions from one machine to another. > We'd like to avoid being forced into using session-affinity for load balancing, > since in our environment, that would likely result in significantly unbalanced >loads. There is some effort going on to provide Clustering ability for TC4, currently you can use it for in memory replication of sessions, however this feature is considered highly experimental. > So that probably means we need JDBC session store. Correct? And if so, what (in your >opinions) > is the current state of JDBC Session Store? (Also - am I correct that it's only >available under > Tomcat 4.0? Will it eventually also be available under the 3.x series?) When it comes to storing sessions you can use either FileStore or JDBCStore, I would say that both are considered "medium rare". ..bip