Appendix B. Mod_jk connector module
The Apache Tomcat Connector, mod_jk, is a web server plug-in that the Apache Tomcat project provides. The Apache HTTP Server can use the mod_jk module to load-balance HTTP client requests to back-end servlet containers, while maintaining sticky sessions and communicating over the Apache JServ Protocol (AJP). The mod_jk module is included in the Apache HTTP Server part of a JBoss Core Services installation.
The mod_jk module requires that you create both a mod_jk.conf file and a workers.properties file on the Apache HTTP Server host. The mod_jk.conf file specifies settings to load and configure the mod_jk.so module. The workers.properties file specifies back-end worker node details. You must also configure some settings on the [JWSShortName] host to enable mod_jk support.