Date: 2 Oct 2000 22:29:59 -0000 From: vladimir@math.uic.edu To: DougB@gorean.org, freebsd-questions@freebsd.org Subject: Re: name service caching Message-ID: <20001002222959.13680.qmail@math.uic.edu>
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Hi Doug, just to follow-up to my question about ypserv and high load on the yp server. I finally got annoyed enough to do some testing. It turns out that ypserv on the master server works very hard every time anyone logs in, and this is not freebsd-related at all. We ran into a problem after adding BSD machines because the solaris lab was not used by anyone. A stack trace on the /usr/bin/login (or any other daemon, ftpd, for example) + network dump show that they call initgroups(), which reads the whole group database from the yp server. We recently created a separate group for each user to take advantage of file sharing, and the group database became so huge that initgroups() takes forever. I am not sure what could be a good fix, except making each machine a yp slave server (argh...). Vladimir >From vladimir Wed Sep 13 14:23:24 2000 >To: freebsd-questions@freebsd.org >Subject: Re: name service caching > > >From DougB@gorean.org Wed Sep 13 19:17:24 2000 > >Delivered-To: vladimir@math.uic.edu > >Date: Wed, 13 Sep 2000 12:17:16 -0700 (PDT) > >From: Doug Barton <DougB@gorean.org> > >X-Sender: doug@dt051n37.san.rr.com > >To: vladimir@math.uic.edu > >cc: freebsd-questions@freebsd.org > >Subject: Re: name service caching > >MIME-Version: 1.0 > >Status: R > > > >On 13 Sep 2000 vladimir@math.uic.edu wrote: > > > >> Dear BSD users, > >> > >> is there an equivalent of Solaris nscd daemon > >> (name service caching daemon): > > > > No... nor would one be desirable. If you need this kind of servi >ce > >run a local copy of named configured as a forwarder to your > >"real" resolvers. > >nscd on solaris also caches passwd and group databases. >I was asking because we've just added a bunch of BSD machines, and the >resources consumed by ypserv on a solaris NIS server went up quite a >lot. Before that, adding a lab of solaris boxes didn't make a >difference. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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