Second level cache is different than first level cache. It acts on session factory level not each individual session. In order to setup second level cache in a Castle ActiveRecord application consider following points:
1. Settings of second level cache in Castle ActiveRecord is basically as same as NHibernate.
2. In addition of web.config/app.config settings, caching must enabled in entities too.
3. Caching in collections and queries must be considered too.
4. Each operation must be wrapped in a transaction.
5. FindAll series of Castle ActiveRecord does not allow query caching. You must use your own custom build of Castle ActiveRecord.
