The answer to the first question depends on what your Tomcat servlet/JSP is doing. Are you trying to maintain concurrent idle connections or do have a CPU and memory heavy-weight bio-tech analysis? You can host more concurrent users with a "Hello World" servlet than you can with an application doing real work, but that doesn't really tell you anything about how useful Tomcat is to you and your application. Second, yes. I hit Google and typed in "tomcat clustering" and the first hit was http://www.onjava.com/pub/a/onjava/2004/11/24/replication1.html Third, it depends on what it means to "login" to your application. Are you allocating a default HTML session or are you allocating 1,000 Java objects, a connection pool and other items. The only real way I know to answer your questions is to put the application on a box and put it under load. Have you looked at JMeter? http://jakarta.apache.org/jmeter Also, you'll find that the top end of large numbers of concurrent users will vary by operating system. Jared Ship It! is shipping! http://www.pragmaticprogrammer.com/titles/prj/ http://www.jaredrichardson.net/
________________________________ From: [EMAIL PROTECTED] on behalf of [EMAIL PROTECTED] Sent: Mon 7/11/2005 7:38 PM To: [email protected] Subject: [Juglist] Web Server Capability Does anyone know the answers to the following: 1. What is the rated capacity (concurrent users) for Tomcat on some average server? 2. Can Tomcat be in a clustered solution to increase user capacity? 3. Is there any statistical formulae that help estimate the number of concurrent users given the overall number of users per hour (or day) that may login? -Chris _______________________________________________ Juglist mailing list [email protected] http://trijug.org/mailman/listinfo/juglist_trijug.org
