Hi Be careful on mod_jk, apache1.3.x and Tomcat 4.x Apache will use up 100% CPU with 100 concurrent user after 2 hour to 4 hours, I believe there is a bugs on the mod_jk, I did post few message before, and no one seems to find the solution. For production, use commerce program until the mod_jk(AJP13) fix the deadlock.
Thanks ----- Original Message ----- From: "Lucy Marney" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Tuesday, June 11, 2002 9:05 PM Subject: Tomcat load estimates/load balancing question > Hi all, > > I have a quick question regarding the estimated load of Tomcat 4.0 - running > behind Apache 1.3.22, using the WARP connector, and both on the same machine > (Linux). > > I have read alot about the inability of mod_webapp to do serious load > balancing - I've gathered that production-style scalability can only be > achieved through the use of the mod_jk connector. > > However, I can't seem to find any explicit estimations of the kind of load > to be expected when using the above setup - in terms of concurrent servlet > requests by muliple clients/machines. How many concurrent connections are > we talking about here? Or more specifically, where does the line fall > between "production use" and "normal use". I know this is probably a > personal/context-related issue, but I was interested in just how much you > can bash Tomcat 4.0 before hassles arise. > > My question is sparked by problems in our own setup, whereby concurrent > requests for the same servlet result in an internal error (NullPointer > exception, that was previously not a problem) - after only about 10-15 > consecutive requests each. I'm still trying to track down any possibilities > of client/server code errors. > > Any thoughts/comments would be greatly appreciated. > > Thanks, > Lucy > > _________________________________________________________________ > MSN Photos is the easiest way to share and print your photos: > http://photos.msn.com/support/worldwide.aspx > > > -- > To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> > For additional commands, e-mail: <mailto:[EMAIL PROTECTED]> > -- To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> For additional commands, e-mail: <mailto:[EMAIL PROTECTED]>
