On 12/27/10 4:42 PM, Don Hill wrote: > Thanks. > > I am trying to get them to migrate. It seems that part of there bottleneck > could be the MAX clients on HTTPD. They get high volumes at times and have > like 1800-3000 active sessions. Any other input would be great like tuning > tomcat to workers and the best strategy to setup a tomcat/httpd env. > > Don > > On Mon, Dec 27, 2010 at 9:34 AM, André Warnier <a...@ice-sa.com> wrote: > >> Don Hill 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 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 ? >>> >>> The very first thing that I would recommend, would be to use the current >> versions of both httpd and tomcat. The versions you mention above are >> several years old, and no longer being developed, except maybe for security >> patches. >> See : http://httpd.apache.org/docs/1.3/ >> See : http://tomcat.apache.org/whichversion.html
Are you using a 64bit JVM? What version is it? Is your OS a 64bit version? Which OS is it? p
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