4.2.2. Full Replication

As we discussed in HTTP session replication, full replication is the default, and it will perform just fine in two-node clusters. State in stateful session beans tends to be even more complex than state in the HTTP session, so use caution in using full replication for stateful session beans than for the HTTP session. If buddy replication is used for either HTTP sessions or stateful session beans, and the web tier of the platform (servlet container) is not separated from the rest of the platform, it is good practice to use the same method for both. Even if you can get away with full replication on HTTP sessions, your use of stateful session beans may drive you towards buddy replication.