Re: [gentoo-dev] Performance once again..

[Dar-Klajid <dar@Dar-Klajid.de>]

On Mon, 2003-04-14 at 11:33, Paul de Vrieze wrote:
> >
> > No, not yet.
> > I could try to run strace on apache, but the biggest problem is not the
> > CPU it uses.. The problem is that it just stops to work. Yesterday I got
> > a "MaxClients reached" error and MaxClients is 200.. After that it
> > didn't "recover" so I had to restart it before any new connections were
> > possible. Since that happened 8h after I started the server again, I
> > doubt that I can strace this particular problem? Or do I miss something?
> 
> Do you by any chance use persistent database connections from php. In that
> case you might want to look at setting a limit on those connections, or
> maybe disallow (or remove the use) them. Also fiddling with the apache
> client settings might work. 200 clients is a lot, so probably some are out
> on their backs (dead). In the config you can control restarting of those
> clients (how long they are allowed to be alive). If you have a really busy
> site, they might actually all be in use in which case increasing this
> limit is the solution.

Thanks for the reply, but I already checked all that. No, I don't use
persistant connections. I do use a lot of DB-connections, but after this
"incident" the server won't serve php-sites anymore and therefor there
are no connections on the DB (I checked that on the DB-Server).
I'm still not sure what causes this Perl-Error in the error_log
(Syslog).
I log via a custom logger-script (more or less a perl-oneliner) and some
of the lines are send to another host.
I used exactly the same configuration/script with Debian before, but
Debian uses sysklogd and I switched to syslog-ng during my
"distribution-move".
Could this be a problem? I'm just guessing here, since I'm totally
helpless right now.

Concerning the other apache settings:
Timeout 180
KeepAlive On
MaxKeepAliveRequests 100
KeepAliveTimeout 15
MinSpareServers 5
MaxSpareServers 15
StartServers 10
MaxClients 200
MaxRequestsPerChild 500

Anything wrong with this settings? I'm quite sure that I copied them one
by one from the Debian config.


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