Greetings. Best luck I had was with a "tweaked" 2.4.18 Kernel. (Testing has shown Sun's JDK 1.3.1 & 1.4.0 to be stable under this configuration). Tests of 500Users/Box were not a problem (application bugs and Beta version of JBoss killed test at 550concurrent users on last run - 3 months ago). Default Linux Kernels tend to have problems with >200 Users/Connections on JBoss.
Tweak was boosting Thread & Process maxmimums in Kernel from defaults (64 Threads/Process|1024 Processes/System) to 4096 & 8192 respectively. Rebuilt the kernel, and have not had a problem since. (I know, I know, rebuilding the kernel is a pain - these low values are to avoid runaway processes/forkers from crashing the system. They are fine for normal usage, but not highload server boxes. Linux docs call these variables, and others like them, the "Tunables", stuff you are supposed to tweak to get the best performance out of your box.) Distribution: SuSE 7.3 Hardware: AMD 1.4Ghz Athlon/1.5GB DDR-SDram I can look up details if anyone is interested, and post. Will post all details when I get a clean test run of >1000 Users/box. -Steve Dain Sundstrom wrote: > You are giving me to much credit. I use Mandrake for my development > server, but Mandrake pisses me off. None of the RPMs work correctly and > it is a pain to configure. Anyway, I have been using the Sun 1.3.1_01 > without any problems. This is a single 1.4 Ghz Athlon processor. This > is just my development box and I rarely leave the JVM up for more then > 8 hours. > > I use Debian for another server, but I don't run java on that box. > Debian also uses a very old kernel so most JVMs don't won't run. > > The only unix server I really like is my FreeBSD box, but Java support > is seriously limited. You can run a native FreeBSD port of the Sun vm, > but you don't get HotSpot. Otherwise, you can run the Sun or IBM vm in > linux compatibility mode. > > Has anyone had good luck running any Java application on Linux? What > linux distribution, version, JVM and JVM version did you use? > > -dain > ------------------------------------------------------- This sf.net email is sponsored by:ThinkGeek Gadgets, caffeine, t-shirts, fun stuff. http://thinkgeek.com/sf _______________________________________________ JBoss-user mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/jboss-user
