Summary

In this chapter you enhanced your skills for handling Web application deployment. You saw the AJP connector before going on to obtain mod_jk, the Apache redirector module. You looked at the binary distribution as well as how to build from source on both Windows and Unix systems. I also discussed mod_jk2 and showed how its configuration is similar to, though much easier than, that of mod_jk.

You saw how mod_jk acts as a redirector component to route requests for dynamic content to Tomcat workers. Also, you’ve acquired skills to exploit the strengths of integrating Tomcat with Apache. You also saw how to configure IIS to work with Tomcat. You first saw how ISAPI works as a redirector to forward requests to Tomcat as an out-of-process worker. ISAPI communicates with Tomcat over TCP/IP using AJP.

You examined a number of ways of setting up your architecture using application servers, Web server farms, and multiple dedicated Tomcat workers to provide a more scalable architecture. In addition to this, you implemented and tested load balancing for routing traffic between multiple instances of Tomcat and an external Web server.