Re: MaxClients 256 but server-status show 1024 slots

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Jeroen Geilman wrote:

> On 01/15/2012 08:01 PM, Helmut Schneider wrote:
> > Jeroen Geilman wrote:
> > 
> > > On 01/15/2012 07:31 PM, Helmut Schneider wrote:
> > [...]
> > > > So the highest value configured is 256 (setting at
> > > > server.conf.local overwrite defaults at apache2.conf). But
> > > > /server-status shows:
> > [...]
> > > > That's 1024 slots. And yes, I stopped and restarted apache and
> > > > even the server itself.
> > > > 
> > > > What's wrong here?
> > > > 
> > > > ~$ apache2 -v
> > > > Server version: Apache/2.2.14 (Ubuntu)
> > > > Server built:   Nov  3 2011 03:30:19
> > > > ~$
> > > Are you using worker or prefork ? What is serverlimit set to ?
> > Ah, I see. It is configured to use worker. Am I correct that I need
> > to adjust either ThreadsPerChild or ServerLimit (or both)?! What is
> > recommended? Both are currently unset/defaults.
> 
> What is it you want to do ?
> Worker threads consume very little memory, the defaults are fine.

Check apache with nagios. I have a plugin that checks available slots
and when "MaxClients != open slots" Nagios thinks that everything is
fine while apache does not serve new clients anymore. Of course I could
also raise MaxClients to 1024 but that is much more than required
(allthough the server has 2G of RAM and is a dedicated Webserver).


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