From owner-freebsd-isp  Fri Aug 13  9:48:55 1999
Delivered-To: freebsd-isp@freebsd.org
Received: from buffnet4.buffnet.net (buffnet4.buffnet.net [205.246.19.13])
	by hub.freebsd.org (Postfix) with ESMTP id 93BD414F9F
	for <FreeBSD-ISP@FreeBSD.ORG>; Fri, 13 Aug 1999 09:48:51 -0700 (PDT)
	(envelope-from shovey@buffnet.net)
Received: from buffnet11.buffnet.net (buffnet11.buffnet.net [205.246.19.55])
	by buffnet4.buffnet.net (8.8.7/8.8.7) with ESMTP id MAA26158;
	Fri, 13 Aug 1999 12:47:46 -0400 (EDT)
	(envelope-from shovey@buffnet.net)
Date: Fri, 13 Aug 1999 12:47:46 -0400 (EDT)
From: Steve Hovey <shovey@buffnet.net>
To: Joe Nall <joe@nall.com>
Cc: lambert@cswnet.com, FreeBSD-ISP@FreeBSD.ORG
Subject: Re: pwd_mkdb and system processes
In-Reply-To: <37B44A72.94B35E78@nall.com>
Message-ID: <Pine.BSF.4.05.9908131247350.11175-100000@buffnet11.buffnet.net>
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII
Sender: owner-freebsd-isp@FreeBSD.ORG
Precedence: bulk
X-Loop: FreeBSD.org


Or just increase the cache size it uses to it gets done quicker

On Fri, 13 Aug 1999, Joe Nall wrote:

> lambert@cswnet.com wrote:
> > 
> > I've been trying to track down a problem on my e-mail server where it
> > stops processing smtp and pop processes for 5 minutes at a time.
> > 
> > # wc -l /etc/passwd
> >     14945 /etc/passwd
> > 
> > We rebuild this file once per hour to add or remove customers.
> > 
> > I finally caught it with a top session running at the time.
> > 
> > Inetd was accepting new connections and starting popper but people  can't
> > authenticate.
> > Sendmail accepts new connections but they stall until pwd_mkdb goes away.
> >  When I try to run a command from the command line, it doesn't execute
> > until pwd_mkdb gets done.
> > The CPU is 97% idle during this time.
> > 
> > Does all file access in the system stop while pwd_mkdb runs?
> No but all password lookups do.  Both of theses commands rely on the
> file you are rebuilding and the files involved are locked during the
> process.  You might try  pwd_mkdp -d /tmp <> followed by a mv of the
> relevant files into /etc or try pwd_mkdb -u <user> at the time the
> passwd file gets modified and avoid the overhead of the total rebuild. 
> YMMV, I haven't used the -d option.
> Joe
> 
> 
> To Unsubscribe: send mail to majordomo@FreeBSD.org
> with "unsubscribe freebsd-isp" in the body of the message
> 



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