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From Axel-Stéphane SMORGRAV <Axel-Stephane.SMORG...@europe.adp.com>
Subject RE: [users@httpd] 127.0.0.1 access_log errors
Date Mon, 01 Oct 2007 08:57:18 GMT
I explicitly set it to 0 for all of my servers. Never had a problem.

In my mind setting it to anything different than zero would just be a temporary hack to circumvent
a bug in some module, particularly memory leaks. 

Various load tests I have made on Apache clearly show that restarting processes has a significant
impact on Apache performance. You definitely do not want that to happen too often.

On the other hand you are using MPM prefork, so the impact may not be too severe... at least
compared to what it would cost to fork new processes to handle load surges.

-ascs
 
-----Message d'origine-----
De : Grant [mailto:emailgrant@gmail.com] 
Envoyé : dimanche 30 septembre 2007 00:35
À : users@httpd.apache.org
Objet : Re: [users@httpd] 127.0.0.1 access_log errors

> > Ok, thanks Joshua.  Do these entries indicate that I might need to 
> > make a change in my prefork settings?  I'm currently using:
> >
> > StartServers            10
> > MinSpareServers         10
> > MaxSpareServers         20
> > MaxClients              256
> > MaxRequestsPerChild     100
>
> No, those log messages rarely indicate any problem at all. But your 
> MaxRequestsPerChild setting is pretty-low if you are interested in 
> performance.

Ok, would you use 0?  I was concerned about a process going haywire eventually.

- Grant

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