From owner-freebsd-net  Fri Oct  5 15:21:24 2001
Delivered-To: freebsd-net@freebsd.org
Received: from silby.com (cb34181-a.mdsn1.wi.home.com [24.14.173.39])
	by hub.freebsd.org (Postfix) with ESMTP id B094B37B406
	for <freebsd-net@FreeBSD.org>; Fri,  5 Oct 2001 15:21:21 -0700 (PDT)
Received: (qmail 7417 invoked by uid 1000); 5 Oct 2001 22:21:19 -0000
Received: from localhost (sendmail-bs@127.0.0.1)
  by localhost with SMTP; 5 Oct 2001 22:21:19 -0000
Date: Fri, 5 Oct 2001 17:21:19 -0500 (CDT)
From: Mike Silbersack <silby@silby.com>
To: <fbdn@dcee.net>
Cc: <freebsd-net@FreeBSD.org>
Subject: Re: No buffer space available
In-Reply-To: <200110052207.AAA06879@orb.bluemoon.ee>
Message-ID: <20011005171752.E7371-100000@achilles.silby.com>
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII
Sender: owner-freebsd-net@FreeBSD.ORG
Precedence: bulk
List-ID: <freebsd-net.FreeBSD.ORG>
List-Archive: <http://docs.freebsd.org/mail/> (Web Archive)
List-Help: <mailto:majordomo@FreeBSD.ORG?subject=help> (List Instructions)
List-Subscribe: <mailto:majordomo@FreeBSD.ORG?subject=subscribe%20freebsd-net>
List-Unsubscribe: <mailto:majordomo@FreeBSD.ORG?subject=unsubscribe%20freebsd-net>
X-Loop: FreeBSD.org


On Sat, 6 Oct 2001 fbdn@dcee.net wrote:

> I've run into problem that various prgorams (sendmail, ftpd) get often
> "cannot create socket: No buffer space available" error. Box is
> serving static html and images about 300 requests/sec, no shortage of
> memory nor CPU resources. Kernel is compiled with: maxusers 256
> options NMBCLUSTERS=16384
>
> # netstat -an | wc -l
>    15207
>
> My best guess is that system is running out of file descriptors. Any suggestions how to fix it?
>
> /fb

Yep, you're probably running out of sockets.  You can change the count in
loader.conf, the variable to tune is "kern.ipc.maxsockets".

Set it to something higher than 16384, I guess.

Mike "Silby" Silbersack


To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-net" in the body of the message