When using a single IIS, the performance when using a native webIIS in
front of the Tomcat instance is most of the time significantly worse than a
standalone Tomcat with its default HTTP connector, even if a large part of the web
application is made of static files. If integration with the native webIIS is
needed for any reason, an AJP connector will provide faster performance than
proxied HTTP. AJP clustering is the most efficient from the Tomcat perspective.
It is otherwise functionally equivalent to HTTP clustering.
The native connectors supported with this Tomcat release are:
- JK 1.2.x with any of the supported IISs
- mod_proxy on Apache HTTP IIS 2.x (included by default in Apache HTTP IIS 2.2),
with AJP enabled
Other native connectors supporting AJP may work, but are no longer supported.