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Date: Mon, 25 Jan 2010 09:32:24 -0500
Message-ID: <cc67648e1001250632w20a2c3c9ube40d21225cadc68@mail.gmail.com>
From: Jeff Trawick <trawick@gmail.com>
To: users@httpd.apache.org
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Subject: Re: [users@httpd] Help me in setting up MaxClients

On Mon, Jan 25, 2010 at 9:16 AM,  <daniel.goulder@and.co.uk> wrote:
> You need to increase ServerLimit and MaxClients to 600 for example.
>
> MaxClients is limited by ServerLimit. =A0In turn ServerLimit is limited b=
y
> the physical resources you have at your disposal.
>
> Considering you have a highly thread-capable server with plentiful
> memory 600 should be a safe limit, provided you only load the modules
> that you need.

Most any server, certainly those, can handle far in access of 600.
Unless there's some high CPU in-process application process, this box
should be able to support thousands of concurrent clients.

BUT  whether setting MaxClients to 200 or 2000 or 20000, for Solaris
and some other non-Linux platforms you absolutely must ensure there is
adequate swap space defined before increasing MaxClients, because swap
space is reserved per process based on virtual memory size.

> Also you could consider using the worker MPM, which will require much
> fewer child processes.

which helps drastically with swap space

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