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From Don Hill <justj...@gmail.com>
Subject Re: Tomcat 5.5/HTTPD cluster question
Date Thu, 30 Dec 2010 15:41:27 GMT
My mistake, Here are the details. I should have confirmed first before
posting but besides the apache version everything else is correct.

tomcat 5.5.2.7
apachectl -l shows prefork compiled in.

*$JAVA_HOME/bin/java -version*

java version "1.6.0_10"

Java(TM) SE Runtime Environment (build 1.6.0_10-b33)

Java HotSpot(TM) 64-Bit Server VM (build 11.0-b15, mixed mode)



*uname -a*

Linux WEB07 2.6.9-89.31.1.ELsmp #1 SMP Mon Oct 4 21:41:59 EDT 2010 x86_64
x86_64 x86_64 GNU/Linux



*uname -m*

x86_64

*
*

*/usr/sbin/apachectl -v*

Server version: Apache/2.0.52

Server built:   Mar 23 2010 08:16:30




On Wed, Dec 29, 2010 at 9:21 AM, Pid <pid@pidster.com> wrote:

> On 12/28/10 9:13 PM, Don Hill wrote:
> > We are on 64bit JVM 1.6 the heap is 8GB for each Tomcat instance. The OS
> is
> > RHEL 4.0 64 bit
>
> Great.  Which versions of HTTPD 1.3 and Tomcat 5.5 are they?
>
>
> p
>
> > On Tue, Dec 28, 2010 at 7:30 AM, Pid <pid@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 <aw@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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