Hi, I've configured a cluster of Tomcats with apache1.3.20/mod_jk and things run fine when I have up to around 70 concurrent user sessions on the system. If I exceed that number by generating traffic at a rate of 1 new user per second (I'm using OpenSTA to do that) apache can't cope with the number of requests. Each tomcat box in my cluster stays very responsive - I can verify by going directly through tomcat's http connector. However, going through apache becomes exceedingly slow. It's almost as if apache has some hard limits on the number of concurrent sessions. Up to around 70 everything works like a charm but when I double that apache just refuses to cooperate. I'm not sure whether it's apache or mod_jk that is the limiting factor here.
Has anyone else had similar scalability problems with apache/mod_jk issues? Thanks in advance, cezar
