a4j:keepAlive and session replication

[victoria122]

Hello All,

I would like to know how the a4j:keepAlive tag works and whether it would be able to cope in the following situation.

We are using session replication between two tomcat servers in a cluster. Our understanding is that beans with session scope will be serialized between the two tomcats, the question is what will happen to request beans that use the a4j:keepAlive tag? How does the tag keep beans alive? The documentation indicates that it saves the beans after the request – where are they saved and will they be replicated between the tomcat instances?

Thank you
Victoria

[nbelaevski]

Hi Victoria,

KeepAlive beans are saved in components view state, so it can be stored in server session or on the client depending on value of javax.faces.STATE_SAVING_METHOD context parameter. This feature should work for the case of session-replication environment.