Date: Wed, 30 Dec 1998 19:55:30 -0500 From: Christian Kuhtz <ck@ns1.adsu.bellsouth.com> To: Gary Palmer <gpalmer@FreeBSD.ORG>, "Steven P. Donegan" <donegan@quick.net> Cc: Mike Smith <mike@smith.net.au>, Josh Tiefenbach <josh@ican.net>, The Hermit Hacker <scrappy@hub.org>, freebsd-current@FreeBSD.ORG Subject: Re: NOW/MOSIX/Beowulf Message-ID: <19981230195530.J828@ns1.adsu.bellsouth.com> In-Reply-To: <28977.915064476@gjp.erols.com>; from Gary Palmer on Wed, Dec 30, 1998 at 07:34:36PM -0500 References: <Pine.BSI.3.91.981230153706.24396A-100000@oldnews.quick.net> <28977.915064476@gjp.erols.com>
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On Wed, Dec 30, 1998 at 07:34:36PM -0500, Gary Palmer wrote:
> Sharing LDAP caches like that doesn't work. You have to have either
> single-master or multi-master distribution. To my knowledge, no shipping
> product today (save perhaps one from M$, I can't remember offhand) supports
> multi-master replication. Which means that all writes to *any* LDAP replica in
> the network get a `pointer' back to the `master' LDAP server (sort of like a
> HTTP redirect) which is where the write is comitted, then replicated out to
> the other servers.
NetWare5 has been shipping production code since September '98 (NDS with LDAPv2
since much before then, and plain NDS even longer).
In fact, Novell was the one who offered their multimaster technology to the
IETF when LDAPv3 was standardized, and the IETF decided that it wasn't worth
their trouble (a major blunder which I will never understand).
NT5 is in beta2, and not expected to ship in volume until 2nd half of 1999 as
Windows2000. NT5 beta2's AD is in unusable state, constantly blowing up and
otherwise hideous. When we went to Microsoft to get an eval they said they
needed to bring an 8 way PIIXeon in to show it off. Thanks, but no thanks.
Take a serious look at NetWare5 if you're shopping for a fast scalable (and
may I add proven) multimaster LDAP directory.
I don't trust slides either. That's why I am beating the crap out of
directories in the lab.
Cheers,
Chris
--
Frisbeetarianism, n.:
The belief that when you die, your soul goes up on the roof and gets stuck.
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