Received: from malur.postgresql.org ([217.196.149.56]) by arkaria.postgresql.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.89) (envelope-from ) id 1iHb9V-0001Pj-12 for pgsql-docs@arkaria.postgresql.org; Mon, 07 Oct 2019 22:06:49 +0000 Received: from localhost ([127.0.0.1] helo=malur.postgresql.org) by malur.postgresql.org with esmtp (Exim 4.89) (envelope-from ) id 1iHb9S-00063a-TB for pgsql-docs@arkaria.postgresql.org; Mon, 07 Oct 2019 22:06:46 +0000 Received: from magus.postgresql.org ([2a02:c0:301:0:ffff::29]) by malur.postgresql.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.89) (envelope-from ) id 1iHb9S-00063H-LK for pgsql-docs@lists.postgresql.org; Mon, 07 Oct 2019 22:06:46 +0000 Received: from momjian.us ([72.94.173.45]) by magus.postgresql.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.89) (envelope-from ) id 1iHb9P-0003MT-Vf for pgsql-docs@lists.postgresql.org; Mon, 07 Oct 2019 22:06:46 +0000 Received: from bruce by momjian.us with local (Exim 4.92) (envelope-from ) id 1iHb9O-00014U-D4; Mon, 07 Oct 2019 18:06:42 -0400 Date: Mon, 7 Oct 2019 18:06:42 -0400 From: Bruce Momjian To: juha-pekka.eloranta@reaktor.fi, pgsql-docs@lists.postgresql.org Subject: Re: Synchronous Multimaster Replication Message-ID: <20191007220642.GB8554@momjian.us> References: <156856543824.1274.12180817186798859836@wrigleys.postgresql.org> <20190928134740.GB26853@momjian.us> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190928134740.GB26853@momjian.us> User-Agent: Mutt/1.10.1 (2018-07-13) List-Id: List-Help: List-Subscribe: List-Post: List-Owner: List-Archive: Precedence: bulk On Sat, Sep 28, 2019 at 09:47:40AM -0400, Bruce Momjian wrote: > On Sun, Sep 15, 2019 at 04:37:18PM +0000, PG Doc comments form wrote: > > The following documentation comment has been logged on the website: > > > > Page: https://www.postgresql.org/docs/11/different-replication-solutions.html > > Description: > > > > Not sure if this is an error but I was wondering about this sentence: "In > > fact, write performance is often worse than that of a single server". Isn't > > syncronous multimaster write performance always (rather than "often") worse > > than that of a single (non-distributed) server? > > Very good point. I have improved the text with the attached patch. I > also clarified the asynchronous case. Patch applied thorough all current versions of the Postgres docs. Thanks for the report. -- Bruce Momjian http://momjian.us EnterpriseDB http://enterprisedb.com + As you are, so once was I. As I am, so you will be. + + Ancient Roman grave inscription +