After Novell Vibe is installed and running on multiple servers, you must provide additional software to provide high availability functionality. Because Vibe is based on Tomcat, software that can provide high availability for Tomcat can be used to provide high availability for your Vibe site.
Install and configure one of the following Web applications to provide high availability for your Vibe site:
Configure the Web application to establish the Vibe site URL, which then stays constant for Vibe users regardless of which Vibe server they access at any given time.
Start the Web application with its new configuration settings.
Test your Vibe site for high availability.
If you are using Apache Web server, Linux Virtual Services, or Microsoft Internet Information Services, users can immediately log in to the Vibe site again after a failover has occurred. The connection between the user’s browser and the Vibe site is maintained as the failover occurs.
If you are using Novell Access Manager, users must start a new browser session, then log into the Vibe site after a failover has occurred. They cannot log in again from the same browser session because the connection between the user’s browser and the Vibe site must be reestablished after the failover.
The following sections provide information for how to configure the Web applications:
If you are using Novell Access Manager as described in Section 9.9, Configuring Single Sign-On with Novell Access Manager, you do not need to configure Tomcat and Apache to load balance as described in this section, because Access Manager provides this service.
NOTE:When you upgrade your Vibe system, these settings are not preserved. You must redefine these settings each time you upgrade your Vibe system.
Consult the following online sources for instructions for setting up Tomcat and Apache as a load balancer for your Novell Vibe site: