You can specify the failover mode for HTTP sessions by setting the mode attribute of the fail-over-enable element.
For more information, see Failover System, HTTP Sessions and Failover of Web Applications, and Failover for Enterprise Beans.
For the DTD, see application-j2ee-engine.dtd.
You have opened the application-j2ee-engine.xml in the multipage editor.
1. Choose the General tab.
2. In the Failover field, choose the appropriate entry from the dropdown list:
¡ disable – failover is not enabled.
¡ on_request – the HTTP session is serialized after completing each request.
¡ on_attribute – the HTTP session is serialized every time an attribute is added, changed, or removed from the HTTP session.