[Building Sakai] Ball-park figure for maximum number of concurrent connections for Sakai site

[John Bush]

It's hard to exactly answer that because so much is dependent on your
use cases.  But generally, if you have things tuned right, you are
probably sized for a max around 3000-3500 concurrent.  I think our
rule of thumb is around 750 users per node for a setup like yours.

Typically, we like to run a utility server for jobs, webdav, web
services, and email once a cluster gets this large, it just help off
loads that work and isolates it from the front end requests.

On Fri, Sep 6, 2013 at 2:39 AM, Jeremy O'Connor <joconnor at uwc.ac.za> wrote:
> Hi
>
> At our institution we have a Sakai site with:
>
> 4 application/tomcat servers
> 1 database/MySQL server
> 1 load balancer/httpd server
>
> They are all running on CentOS 6.4 64bit VM's.
>
> The application servers each have 2 vCPU's and 8GB memory.
> The database server has 4 vCPU's and 8GB memory.
> The load balancer server has 1 vCPU and 2GB memory.
>
> Could anyone give me a ball-park figure for the maximum number of concurrent connections that they think this setup could support?
>
> --
> Jeremy
>
> --
> Jeremy O'Connor
> Programmer
> Applications Development and Support
> Centre for Innovative Educational and Communication Technologies
> University of the Western Cape
> Tel : +27 21 959 3147
> E-Mail : joconnor at uwc.ac.za
>
>
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-- 
John Bush
602-490-0470

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