[jboss-user] JBoss Cluster Questions -- Apache + Mod_jk + JBoss Nodes

Hi Everyone, Now I want to build jboss cluster which can deploy web applications. I decide to use such architecture: Jboss Node1 apache + mod_jk + Jboss Node2 I have two questions: <1>can i both set session_sticky on mod_jk and session_replication on Jboss Node1 and Jboss Node2? Can the two settings conflict with each other?When one Jboss died while one clients visits , how mod_jk behave if I set the two in the configuration files? <2>Is it a classic or typical implementation for JBoss Clustering as is suggested on JBoss Guide? <3> can I both achieve High Availability and Load Balance all in one such as above? Thank you in advance. Xu Feng Yuanjie Networks,Shanghai,China MSN: xufengnju(a)163.com