Many hosts sharing servlets
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-nameGlogal servlets/display-name description Global servlets. /description servlet-mapping servlet-nameinvoker/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 - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Many hosts sharing servlets
Please post a *new* message when writing to the list. Replying to an old (unrelated) message confuses thread-aware mailers, which makes your question harder to find (and thus answer). On Wed, Apr 20, 2005 at 05:06:00PM +1000, Bill Sutton wrote: : I have 100+ servlets and classes that I want to be available to up to 100 : virtual hosts. : 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 : [snip: web.xml with Invoker servlet] : Questions : Is there a better way to do this ? Better depends on your goals, but most a lot of people would say that using the invoker has its pros and cons. Mostly cons. =) (See the archives for why.) You could just JAR up the 100+ servlet classes and drop them in each webapp's WEB-INF/lib. Next, write something to create a set of proper servlet/ and servlet-mapping/ entries for those servlets. This is a one-time hit that will pay off long-term. : Will tomcat be using hugely more memory than jserv was ? Depends on your app. Only a load test + profiling will let you know. -QM -- software -- http://www.brandxdev.net/ tech news -- http://www.RoarNetworX.com/ code scan -- http://www.JxRef.org/ - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Many hosts sharing servlets
Thanks for your quick reply. Yes I have read the pros cons and I would prefer not to use the invoker but the work in updating many webapps each time a servlet changes is daunting, particularly using Plesk. Bill - Original Message - From: QM [EMAIL PROTECTED] To: Tomcat Users List tomcat-user@jakarta.apache.org Sent: Wednesday, April 20, 2005 8:48 PM Subject: Re: Many hosts sharing servlets On Wed, Apr 20, 2005 at 05:06:00PM +1000, Bill Sutton wrote: : I have 100+ servlets and classes that I want to be available to up to 100 : virtual hosts. : 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 : [snip: web.xml with Invoker servlet] : Questions : Is there a better way to do this ? Better depends on your goals, but most a lot of people would say that using the invoker has its pros and cons. Mostly cons. =) (See the archives for why.) You could just JAR up the 100+ servlet classes and drop them in each webapp's WEB-INF/lib. Next, write something to create a set of proper servlet/ and servlet-mapping/ entries for those servlets. This is a one-time hit that will pay off long-term. : Will tomcat be using hugely more memory than jserv was ? Depends on your app. Only a load test + profiling will let you know. -QM -- software -- http://www.brandxdev.net/ tech news -- http://www.RoarNetworX.com/ code scan -- http://www.JxRef.org/ - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
