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mod_proxy and mod_proxy_ajp - httpd

Under Apache httpd version 2.2, mod_proxy_ajp provides a neat way for you to forward requests to an appropriately configured Apache Tomcat server using the more terse ajp protocol rather than the verbose http. Here are some sample configuration lines from httpd.conf, forwarding requests under the /coffee directory via http and requests under /whiskey via ajp.

ProxyPass /coffee http://192.168.200.153:9082/latmjdemo
ProxyPassReverse /coffee http://192.168.200.153:9082/latmjdemo


ProxyPass /whiskey ajp://192.168.200.153:9009/latmjdemo
ProxyPassReverse /whiskey ajp://192.168.200.153:9009/latmjdemo


This is purely a demo - you probably wouldn't mix them in this way in real life.

mod_proxy_ajp provides a quick and easy alternative to mod_jk if you're running Apache httpd 2.2 (or later in due course), but the example above lacks the flexibility of worker pools and the like that mod_jk provide. To some extend mod_proxy_balancer can help mod_proxy_ajp, but I would expect both mod_jk and mod_proxy_ajp to both have their own proponents and optimum uses
(written 2008-08-22 07:17:29)

 
Associated topics are indexed under
A603 - Web Application Deployment - Further httpd Configuration

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