From owner-freebsd-stable  Sat Sep  5 10:20:35 1998
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Date: Sat, 5 Sep 1998 10:18:59 -0700 (PDT)
From: Tom <tom@uniserve.com>
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To: Andrew McNaughton <andrew@squiz.co.nz>
cc: The Hermit Hacker <scrappy@hub.org>, Bob K <melange@yip.org>,
        The Lab <thelab@nmarcom.com>, freebsd-stable@FreeBSD.ORG
Subject: Re: too many open files
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On Sun, 6 Sep 1998, Andrew McNaughton wrote:

> On Fri, 4 Sep 1998, Tom wrote:
> 
> > > 	One requires a rebuild/reboot of the system...one doesn't.  IN a
> > > production environment, /etc/login.conf is about the only choice...
> > 
> >   Except you are talking about two different things.  MAXUSERS controls
> > the system wide file table.  /etc/login.conf controls per-user file
> > limits.  You can increase the limits in /etc/login.conf all you want, but
> > if the system wide table is full, you will still get "too many open files"
> > errors.
> > 
> > Tom
> 
> between sysctl and login.conf, either can be set without a rebuild.
> references to MAXUSERS seem to suggest that it affects a whole range of
> values.  Some of it can be overridden via sysctl.  Can anyone clarify what

  Yes.

> if anything can't?  sysctl and ulimit have sorted out my recent problems,

  Number of mbufs (netstat -m), but the mbufs can be increased outside
MAXUSERS too.

> with  numbers of processes and files, but perhaps there's  other reasons
> why I should increase MAXUSERS?
> 
> I'm currently running a busy webserver with MAXUSERS=64.  Apache docs
> suggest MAXUSERS=256.
> 
> Andrew McNaughton

Tom



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