What I really want to know is there a better design that I should use to gain performance. for example
1.) create multiple HTTPD servers, 2 servers per machine. Each serving 2 tomcats JVM 2.) use load balancer in workers to handle the load balance to the JVM's. The current configuration is balancing through the vhosts and each vhost has a worker for a JVM instance. On Mon, Dec 27, 2010 at 9:05 PM, Don Hill <justj...@gmail.com> wrote: > Hi. > > I am working on a tomcat 5.5 cluster which is using ajp/1.3 and mod_jk and > trying to determine the best cluster design given the hardware. I have 2 > xeon 2.3 ghz 2 CPU machines with 38GB ram machine. Currently here is the > config I am using. The TOMCAT and HTTPD servers are on the same physical > machine. > > Each machine is running HTTPD 1.3 with prefork, the MaxClients is 256 due > compiled in limits. Each machine has 4 virtualhosts running through one > instance of HTTPD. Two of the VHOSTS are the same app running on 2 Tomcat > 5.5 with 8GB RAM(configured by customer). The workers are configured to each > VHOST meaning for each machine there are 4 workers defined and one worker > is defined for each VHOST. I will try and depict this below. The current > load balancing is controlled by F5 and manages the load across 2 machines, 4 > VHOST for each app. > > Based on this info can someone recommend if this configuration could be > improved and if so what would you recommend ? > > Attached is a pic of the cluster > > Thanks for any help on this. > > >
