We are on 64bit JVM 1.6 the heap is 8GB for each Tomcat instance. The OS is RHEL 4.0 64 bit
On Tue, Dec 28, 2010 at 7:30 AM, Pid <p...@pidster.com> wrote: > 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 >
