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From Nick Kew <>
Subject Re: [users@httpd] high load average on Apache 1.3 hosting 8000 conc. users forum
Date Mon, 30 Jan 2006 02:12:04 GMT
On Sunday 29 January 2006 22:39, wrote:
> Dear List members,
> I'm the administrator of a big website that hosts an important forum
> (VBulletin to be precise). At peak time we get around 7000-9000
> concurrent users (counting the php sessions, members visiting the forum)
> the switch (Foundry) counts 2700 concurrent connections.
> during those peak times, the apache server (RHEL 4 AS, Apache 1.3, php)
> gets a load average of 80~170. the mysql server runs smoothly at 0.9 ~
> 3.
> Browsing the Internet / following some optimizations HOWTOs didn't help.
> Can anyone kindly support me on that issue?

Looking at a longer-term solution, you should migrate the application to
Apache 2.2, where the DBD architecture offers a major improvement in an
application of that kind.

I don't know whether PHP has made any effort to support DBD yet.

Nick Kew

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