We host 15 separate Tomcat instances (3.1) on a single machine. The apps use MySQL.
The machine is dual-P3 1GHz, 2GB RAM. Red Hat 7.2, Apache 1.3.26. The connector is mod_jserv. Not sure which JDK, probably 1.3. The usage is high, all of the apps are graphics manipulation apps serving users globally (Pacific Rim, North America, Europe), 24/7. The apps require frequent callouts to third party apps like Adobe Distiller using standard command-line calls (no API or other integration). Uptime is 139 days, load rarely goes over 50%. I did restart all of the Tomcats last week, but that was due to an application patch. Prior to that, they hadn't been restarted in several months, and I don't plan to restart them for a couple more, when the next patch is released. Knock on wood, perhaps we've been lucky, but I think our situation is pretty normal, and definitely what I would expect in a UNIX environment. John > -----Original Message----- > From: Brandon Cruz [mailto:bcruz@;norvax.com] > Sent: Thursday, October 24, 2002 3:36 PM > To: Tomcat Users List > Subject: Tomcat Scalability - Long > > > Does anyone have any solid information about the scalability > of Tomcat? It > seems very limiting to me, but that is hopefully due to improper > configuration. Here is our situation and what seems to be > happening under a > small amount of stress. > > ---About our Environment--- > > PIII 1.0Ghz > 512 Meg Ram > Linux RedHat 7.1 > MySQL Database > Apache 1.3.x > mod_jk - logging turned all the way down > Tomcat 3.2.4 - contexts *are* reloadable right now > SUN JDK 1.3.1_01 > > ---About our Application--- > > Our Application is a content management tool that reads and > writes to the > MySQL Database and reads and writes files. All the pages within this > application are served by Tomcat 3.2.4. About 80-120 people > per day log > into this application and spend anywhere from 10 minutes to > one hour working > on the application. At any given time there are between 15 > and 50 active > database connections. > -- To unsubscribe, e-mail: <mailto:tomcat-user-unsubscribe@;jakarta.apache.org> For additional commands, e-mail: <mailto:tomcat-user-help@;jakarta.apache.org>
