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 Message-ID: <Pine.BSF.4.05.9908131247350.11175-100000@buffnet11.buffnet.net> In-Reply-To: <37B44A72.94B35E78@nall.com>
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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
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