From owner-freebsd-isp  Tue Oct 19 13:55:10 1999
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Date: Tue, 19 Oct 1999 16:53:24 -0400
From: Luis Moreno <luis@cantv.net>
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To: "D. Alex Neilson" <neilson@purple.nugate.com>
Cc: questions@FreeBSD.ORG, isp@FreeBSD.ORG, neilson@www.nugate.com,
	neilson@usc.edu
Subject: Re: apache server can't spawn child processes
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Try this in the script that start the web server (under sh).
 ulimit -u 512
 ulimit -n unlimited

Hope it helps.

-luis

"D. Alex Neilson" wrote:

> Synopis: apache server can't spawn child processes
>
> Hello,
>
>   I've got 2.2.6 (yeah, I'll upgrade one of these days) which
> runs a very busy server of typically 300 nobody users (what apache
> children run as), and cgi programs can't spawn, getting this in the
> error log for this server:
>
>         (35)Resource temporarily unavailable:
>                 couldn't spawn child process:
>                 /content/somesite/public-html/something/cgi/step1.cgi
>
> I've beefed up maxusers to 512 which I now realize is overkill,
> increased CHILD_MAX to 512 in /usr/include/syslimits.h, tweaked
> the login.conf to this (I presume nobody maps to default):
>
>         default:\
>                 :cputime=infinity:\
>                 :datasize-cur=88M:\
>                 :stacksize-cur=64M:\
>                 :memorylocked-cur=40M:\
>                 :memoryuse-cur=256M:\
>                 :filesize=infinity:\
>                 :coredumpsize=infinity:\
>                 :maxproc-cur=512:\
>                 :openfiles-cur=8191:\
>                 :priority=0:\
>                 :requirehome@:\
>                 :umask=022:\
>                 :tc=auth-defaults:
>
> Here's how busy the server is right now (1pm PDT):
>
>         24.5 requests/sec - 437.6 kB/second - 17.9 kB/request
>         295 requests currently being processed, 30 idle servers
>
> I don't know what ceiling I'm banging up against and would appreciate
> pointers on beefing up system parameters to accomodate large apache
> server loads.
>
> Thanks,
>
> Alex
>
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