Hi, All:
Here is the story, the vertical clustering seems working great, which means I started two tomcat instances on the same machine and give them different worker name. Load balance/Sticky-NonSticky Session works like a charm. I tried both sticky, non-sticky session by open several browsers and kill one Tomcat Instance. Sticky session will cause some client to die while the non-sticky session keep all the clients happy. I am using the TOMCAT 5.0.28 and MOD_JK 1.2.18 Then I tried to run another Tomcat Instance on a separate machine with Tomcat 5.5 installed. If I only have one worker on this MACHINE, everything works great. However When I started the second worker on the original machine. Things happened randomly, blank page will come up, then after a while some pages works again. So it seems to me it was caused by Sticky - session because if I removed some jsp pages on one application folder, some error message will come up randomly in one's browser. It should not happen because I turned on the sticky session. Does anyone know why to display the worker name in the JSP or JAVA code so I can show which worker service this request. Thanks Pat
