From owner-freebsd-stable@FreeBSD.ORG Thu Dec 6 11:40:46 2007 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 828C016A41A for ; Thu, 6 Dec 2007 11:40:46 +0000 (UTC) (envelope-from jdc@parodius.com) Received: from mx01.sc1.parodius.com (mx01.sc1.parodius.com [72.20.106.3]) by mx1.freebsd.org (Postfix) with ESMTP id 7095F13C45A for ; Thu, 6 Dec 2007 11:40:46 +0000 (UTC) (envelope-from jdc@parodius.com) Received: by mx01.sc1.parodius.com (Postfix, from userid 1000) id 3A4AA1CC079; Thu, 6 Dec 2007 03:40:46 -0800 (PST) Date: Thu, 6 Dec 2007 03:40:46 -0800 From: Jeremy Chadwick To: Eugene Grosbein Message-ID: <20071206114046.GA78813@eos.sc1.parodius.com> References: <20071206112207.GA74486@svzserv.kemerovo.su> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20071206112207.GA74486@svzserv.kemerovo.su> User-Agent: Mutt/1.5.16 (2007-06-09) Cc: Patrick van Iersel , freebsd-stable@freebsd.org Subject: Re: Extreme load with local password db lookups X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 06 Dec 2007 11:40:46 -0000 On Thu, Dec 06, 2007 at 06:22:07PM +0700, Eugene Grosbein wrote: > On Thu, Dec 06, 2007 at 11:37:50AM +0100, Patrick van Iersel wrote: > > > Here's the situation. We have an web/ftp server with around 74000 users > > defined in the local unix password database. On 4.9-stable which it is > > running now, there is no noticable load when lookups are done (logins via > > ftp, ~user lookups from apache etc.). We want to migrate this system to > > 6-stable. > > However on 6-STABLE (FreeBSD 6.3-PRERELEASE #0: Wed Dec 5 13:35:05 CET > > 2007) these same lookups cause very high load and things slow down to a > > crawl. > > > > Does anybody have an idea what causes this behavior? > > > > Thanx in advance for any insights. > > Take a look to your /etc/nsswitch.conf. If you do not use NIS, > try to change lines for 'group' and 'passwd' to look like this: > > group: files > passwd: files The default value is "compat" on both RELENG_6 and RELENG_7. I don't think switching to "files" will fix his problem (I'll be very surprised if it does). -- | Jeremy Chadwick jdc at parodius.com | | Parodius Networking http://www.parodius.com/ | | UNIX Systems Administrator Mountain View, CA, USA | | Making life hard for others since 1977. PGP: 4BD6C0CB |