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From "Victor Trac" <victor.t...@gmail.com>
Subject Re: [users@httpd] Apache on Windows - PHP Failure - NO Restart
Date Tue, 14 Aug 2007 10:22:05 GMT
Sorry, I'm only familiar with what happens on the linux side of things.
What happens on Windows may be different, but if it helps, mod_php will
cause apache processes to segmentation fault after a random amount of load
(usually after 2-3 days).  At this point, anything that apache sends off to
php will segfault, but apache will continue to serve other file types (html,
images, css, js, etc) without a problem.  Apache itself doesn't crash.  A
graceful restart of the apache master process fixes the problem (for another
2-3 days).

fcgid should prevent apache from segfaulting in the first place, so you
would not need to worry about being able to gracefully recover.

Hope that helps.

--Victor

On 8/14/07, Stephen Johnston <stephen.johnston@guildlaunch.com> wrote:
>
> Victor,
>
> Just to be clear. Are you saying they all end up crashing Apache, or
> causing Aache not to gracefully recover from crashes? There are two issues
> here and I'd like to know for which FastCGI is a typical solution. We've
> already been investigating fcgid as an option.
>
> -Stephen
>
>
> On 8/13/07, Victor Trac <victor.trac@gmail.com> wrote:
> >
> > On 8/13/07, Stephen Johnston < stephen.johnston@guildlaunch.com> wrote:
> >
> > >  Greetings,
> > >
> > > We have an Apache 2.0.59 server on Windows 2003 running PHP 5.2.3. We
> > > are also running eaccelerator. Sometimes, PHP faults and brings down Apache
> > > with it. Considering this happens a few times a week, it's not the end of
> > > the world. The bad thing is that Apache "restarts", the logs show it
> > > spinning up new threads to serve pages, but it doesn't actually respond to
> > > any requests.
> > >
> > > On a similar, maybe related, note we have tried setting
> > > MaxRequestsPerChild on this system and when it is reached it exhibits
> > > simliar behavior. The logs say "Restarting apache. Starting X threads." etc.
> > > but it actually serves no pages.
> > >
> > > Anyone have any ideas?
> > >
> > > -Stephen
> > >
> >
> > On the linux side, mod_php plus any sort of op-code caching
> > (eaccelerator, APC, etc) all end up doing this after a little load.  The
> > only long term "fix" I know of is to run php using fastcgi.  However,
> > another solution is to have a script monitor the apache error logs for the
> > segmentation faults, at which point it restarts apache completely.  I do
> > this now, and it works well.  You can probably script a similar thing on
> > windows.
> >
> > --Victor
> >
> > --
> > http://www.victortrac.com
>
>
>
>
> --
> Stephen Johnston
> President/CEO
> Guild Launch, LLC
> http://www.guildlaunch.com/
>
> Communities for online gamers, guilds and clans.




-- 
http://www.victortrac.com

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