Appendix C: High Availability with Tomcat
It is possible to setup Moab Access Portal® to run in a high availability environment using the Apache Tomcat servlet engine. Tomcat provides a session replication (clustering) and load balancing feature to increase the availability of any web application. Session replication provides fail-over stability, so that if several users are using Access Portal on a server that fails, the users' session information is automatically replicated and sent to a backup server. The result is that the users do not even perceive any failure and are able to continue using the portal without incident.
The Apache Project provides detailed information on how to configure Tomcat to use these high availability features with web applications: