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Date:      Wed, 14 Apr 1999 13:21:41 -0700 (PDT)
From:      Doug White <dwhite@resnet.uoregon.edu>
To:        Bryce Newall <data@dreamhaven.net>
Cc:        FreeBSD Questions List <freebsd-questions@FreeBSD.ORG>
Subject:   Re: FD_SETSIZE
Message-ID:  <Pine.BSF.4.03.9904141310210.15989-100000@resnet.uoregon.edu>
In-Reply-To: <Pine.NEB.4.10.9904121344170.6533-100000@ds9.dreamhaven.org>

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On Mon, 12 Apr 1999, Bryce Newall wrote:

> On Mon, 12 Apr 1999, Doug White wrote:
> 
> > > equivalent to FD_SETSIZE in 2.2.8 and below?  When I have that option in a
> > > 3.1 kernel, config tells me it doesn't recognize that option.
> > 
> > I think it's a sysctl now, and you generally have to fix this on a
> > per-program basis at build-time.
> 
> Hmm... so it's no longer a kernel option that can be "global" to all
> programs like it used to be?  Here's why I'm asking about this:

The problem is that some program's implementations expect FD_SETSIZE to be
256, and tank otherwise.  Old versions of Apache are a case-in-point.  

> We (DreamHaven) just upgraded one of our systems from FreeBSD 2.2.8-STABLE
> to 3.1-STABLE.  We did a fresh installation on a new hard drive, installed
> all the programs we use, threw in the /home hard drive, and were off and
> running.  One of the web sites we host is extremely high-volume, and I
> suspect that it may have been responsible for a system crash that occurred
> last night.  Here is a sample of the pile of error messages that got
> dumped into /var/log/messages:
> 
> Apr 11 18:59:08 calico /kernel: 3>file: table is full

Argh!  This message is the bane of my existence; I can never remember how
to fix it! 

First question:  What is maxusers set to?
Second question:  Have you tried setting 'options "OPEN_MAX=###"' in your
kernel config, where ### is something like 255?

Doug White                               
Internet:  dwhite@resnet.uoregon.edu    | FreeBSD: The Power to Serve
http://gladstone.uoregon.edu/~dwhite    | www.freebsd.org



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