Received: from localhost (mx1.hub.org [200.46.208.251]) by postgresql.org (Postfix) with ESMTP id 16F829FB282; Wed, 25 Oct 2006 12:42:14 -0300 (ADT) Received: from postgresql.org ([200.46.204.71]) by localhost (mx1.hub.org [200.46.208.251]) (amavisd-new, port 10024) with ESMTP id 88198-01; Wed, 25 Oct 2006 12:42:05 -0300 (ADT) X-Greylist: from auto-whitelisted by SQLgrey- X-Greylist: from auto-whitelisted by SQLgrey- Received: from momjian.us (momjian.us [70.90.9.53]) by postgresql.org (Postfix) with ESMTP id 9053D9FB274; Wed, 25 Oct 2006 12:42:05 -0300 (ADT) Received: (from bruce@localhost) by momjian.us (8.11.6/8.11.6) id k9PFfx927732; Wed, 25 Oct 2006 11:41:59 -0400 (EDT) From: Bruce Momjian Message-Id: <200610251541.k9PFfx927732@momjian.us> Subject: Re: [HACKERS] Replication documentation addition In-Reply-To: <20061025135740.GH26892@nasby.net> To: "Jim C. Nasby" Date: Wed, 25 Oct 2006 11:41:59 -0400 (EDT) CC: Markus Schiltknecht , Hannu Krosing , PostgreSQL-documentation , PostgreSQL-development X-Mailer: ELM [version 2.4ME+ PL123] MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="US-ASCII" X-Virus-Scanned: Maia Mailguard 1.0.1 X-Spam-Status: No, hits=0.465 tagged_above=0 required=5 tests=AWL, SARE_SPEC_REPLICA, SPF_HELO_PASS, SPF_PASS X-Spam-Level: X-Archive-Number: 200610/89 X-Sequence-Number: 3810 Jim C. Nasby wrote: > On Wed, Oct 25, 2006 at 11:38:11AM +0200, Markus Schiltknecht wrote: > > I can't really get excited about the exclusion of the term > > 'replication', because it's what most people are looking for. It's a > > well known term. Sorry if it sounded that way, but I've not meant to > > avoid that term. > > > IMHO, it does not make sense to speak of a synchronous replication for a > > 'Shared Disk Fail Over'. It's not replication, because there's no replica. > > Those to statements are at odds with each other, at least based on > everyone I've ever talked to in a commercial setting. People will use > terms like 'replication', 'HA' or 'clustering' fairly interchangably. > Usually what these folks want is some kind of high-availability > solution. A few are more concerned with scalability. Sometimes it's a > combination of both. That's why I think it's good for the chapter to > deal with both aspects of this. OK, I did break it out somewhat for clarity. Let me know how it looks now. -- Bruce Momjian bruce@momjian.us EnterpriseDB http://www.enterprisedb.com + If your life is a hard drive, Christ can be your backup. +