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From Tomcat Random <tomcat.ran...@gmail.com>
Subject Re: Configuration question for 2500 simultaneous users.
Date Thu, 01 Aug 2013 22:14:30 GMT
Hey Chris,

I'm expecting 5000 simultaneous users, with a physical load balancer to two
physical app servers. So ~2500 per machine, each running an instance of
tomcat not fronted by httpd or any proxy server. (i.e., using Tomcat to
serve a few static assets along with the webapp).

"are you just interested in speculative performance tuning?" That's correct
- with just one user (myself) testing it everything is wonderful. I've just
got that uneasy feeling the servers will explode when we flip over from our
old host/codebase and get all the traffic.

Best,
Alec



On Wed, Jul 31, 2013 at 11:09 AM, Christopher Schultz <
chris@christopherschultz.net> wrote:

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> Hash: SHA256
>
> Alec,
>
> On 7/30/13 3:42 PM, Tomcat Random wrote:
> > The project I'm working on has 5000 simultaneous users average. I
> > have two physical servers both running an instance of Tomcat 7.0.
> > They're behind a physical load balancer with sticky, least
> > connections balancing. Nothing in front of the Tomcats. Port 80 to
> > is routed to them by iptables.
> >
> > Anyone out there willing to offer some tips (or point me to them)
> > on configuration for this amount of traffic?
> >
> > Environment is: DELL PowerEdge R720 - 32 GB DELL RAM, GB Memory:
> > 32 Single Socket Six Core Intel Xeon E5-2640 2.5GHz, #Processors:
> > 1, #Cores per Proc: 6 RHEL 6
>
> Are you experiencing any problems, or are you just interested in
> speculative performance tuning?
>
> Tomcat's default configuration is quite reasonable. How many
> simultaneous /connections/ do you expect?
>
> - -chris
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