Many hosts sharing servlets

[Bill Sutton]

I am moving from jserv to tomcat.
I have 100+ servlets and classes that I want to be available to up to 100 
virtual hosts. The server I am moving to runs RHE3 with Apache2, Plesk and 
Tomcat4. Plesk only supports the mod_webapp connector. I can't find much 
info on mod_webapp but it seems to me that each virtual host must have its 
own webapps deployed.

So I have tried to put all the classes into /var/tomcat4/shared/classes.
In each host, I deploy a servlets.war file that contains only the following 
WEB-INF/web.xml file -
   <?xml version="1.0" encoding="ISO-8859-1"?>
   <!DOCTYPE web-app
       PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
       "http://java.sun.com/dtd/web-app_2_3.dtd";>
   <web-app>
       <display-name>Glogal servlets</display-name>
       <description>
         Global servlets.
       </description>
       <servlet-mapping>
           <servlet-name>invoker</servlet-name>
           <url-pattern>/*</url-pattern>
       </servlet-mapping>
   </web-app>

This is working on the few hosts I tried so far. I can link to a servlet 
using http://a-host.com/servlets/MyServlet.

Questions
Is there a better way to do this ?
Will tomcat be using hugely more memory than jserv was ?
Should I abandon Plesk, use Cpanel and configure apache/tomcat manually (but 
I don't want to have to ssh in and configure each new host manually) ?

Thanks
Bill 

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