From owner-freebsd-cluster Tue Jul 24 9:11:46 2001 Delivered-To: freebsd-cluster@freebsd.org Received: from jake.akitanet.co.uk (jake.akitanet.co.uk [212.1.130.131]) by hub.freebsd.org (Postfix) with ESMTP id 9EF9137B405 for ; Tue, 24 Jul 2001 09:11:39 -0700 (PDT) (envelope-from wiggy@wopr.akitanet.co.uk) Received: from dsl-212-135-208-201.dsl.easynet.co.uk ([212.135.208.201] helo=wopr.akitanet.co.uk) by jake.akitanet.co.uk with esmtp (Exim 3.13 #3) id 15P4jc-000LZD-00; Tue, 24 Jul 2001 17:08:37 +0100 Received: from wiggy by wopr.akitanet.co.uk with local (Exim 3.21 #2) id 15P4lU-000G7h-00; Tue, 24 Jul 2001 17:10:32 +0100 Date: Tue, 24 Jul 2001 17:10:32 +0100 From: Paul Robinson To: Bob Bishop Cc: freebsd-cluster@FreeBSD.ORG Subject: Re: Is this list dead? Message-ID: <20010724171032.A60915@jake.akitanet.co.uk> References: <4.3.2.7.2.20010724155503.00be2100@gid.co.uk> <20010724154545.D34017@jake.akitanet.co.uk> <4.3.2.7.2.20010724155503.00be2100@gid.co.uk> <20010724163537.A54445@jake.akitanet.co.uk> <4.3.2.7.2.20010724164231.00bdb960@gid.co.uk> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4.3.2.7.2.20010724164231.00bdb960@gid.co.uk>; from rb@gid.co.uk on Tue, Jul 24, 2001 at 05:02:03PM +0100 X-Scanner: exiscan *15P4jc-000LZD-00*$AK$0KWE.g1ePDdfDegmeM2M71* Sender: owner-freebsd-cluster@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG On Jul 24, Bob Bishop wrote: > http://www.xrefer.com/entry/632785 > > "Hide one's light under a bushel: > Show extreme modesty [etc]" I still think it's strange. Thanks for explaining though. > Easy: it hasn't climbed high enough up anyone's todo list for it to > actually get fixed. Hmmmm. Well, who knows where my evenings will lead me over the next month or so then. It seems like an interesting (and valuable) thing to work on. If you're into that sort of thing. :-) > I suspect (with little supporting evidence) that this is partly due to the > different ways people are using clusters in diverse applications. For > instance, a lot of the academic work is directed at microdecomposition via > message passing, distributed shared memory or what have you. We on the > other hand are currently doing some environmental modelling work > characterised by large numbers of 30hr runs of a fat nasty FORTRAN program > on assorted datasets. Clusters are appropriate in both cases, but different > infrastructures are appropriate. Indeed. I actually want to think about things at a slightly higher level than that. For me a cluster is a redundant bunch of SQL servers that gives high-availability. Bit of load-balancing thrown in there, etc. > One indicator I don't much like is that there doesn't seem to be much > cluster-related software among the thousands of ports in the ports collection. The reason I started this thread was because over on -isp people were talking about vrrpd which is in ports. The idea being that you have a primary server and when it dies, your backup takes over. Then conversation led to load balancing, and then to clustering, and now we're here.... ;-) Like I said over on -isp, I hope to have some time to put into looking at high-level clustering soon with FBSD. I was just wondering if anybody else was playing with it or doing anything with clustering as a whole with FBSD. -- Paul Robinson ,--------------------------------------- Technical Director @ Akita | A computer lets you make more mistakes PO Box 604, Manchester, M60 3PR | than any other invention with the T: +44 (0) 161 228 6388 (F:6389)| possible exceptions of handguns and | Tequila - Mitch Ratcliffe `----- To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-cluster" in the body of the message