Load Balancing

• Introduction to Load Balancing
• Tomcat Configuration
• Apache Configuration
• Tying It Together
• Troubleshooting

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Troubleshooting

I try to log in, but keep getting redirected to the login screen over and over

This is usually a result of a misconfiguration with mod_jk.  Make sure that each node’s jvmRoute attribute is set correctly, and is the name of the worker as defined in worker.properties.

I can log in, but I get automatically logged out repeatedly

This is a common result of having asynchronized internal clocks on multiple servers.   When running in a load balanced configuration, all servers on which Cascade Server are running must have their internal clocks synchronized to within one second of each other. The preferred solution is to use a common NTP (Network Time Protocol) server setting on all application servers.

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