Received: from malur.postgresql.org ([217.196.149.56]) by arkaria.postgresql.org with esmtp (Exim 4.80) (envelope-from ) id 1YLYqW-0004sO-CA for pgsql-admin@arkaria.postgresql.org; Wed, 11 Feb 2015 15:04:56 +0000 Received: from localhost ([127.0.0.1] helo=postgresql.org) by malur.postgresql.org with smtp (Exim 4.80) (envelope-from ) id 1YLYqV-0000e3-L6 for pgsql-admin@arkaria.postgresql.org; Wed, 11 Feb 2015 15:04:55 +0000 Received: from magus.postgresql.org ([2a02:c0:301:0:ffff::29]) by malur.postgresql.org with esmtps (TLS1.2:DHE_RSA_AES_256_CBC_SHA256:256) (Exim 4.80) (envelope-from ) id 1YLYqU-0000dr-UX for pgsql-admin@postgresql.org; Wed, 11 Feb 2015 15:04:55 +0000 Received: from mailout.easymail.ca ([64.68.201.169]) by magus.postgresql.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.80) (envelope-from ) id 1YLYqQ-0000iu-TY for pgsql-admin@postgresql.org; Wed, 11 Feb 2015 15:04:53 +0000 Received: from localhost (localhost [127.0.0.1]) by mailout.easymail.ca (Postfix) with ESMTP id 1DC0FE6C7; Wed, 11 Feb 2015 10:04:46 -0500 (EST) X-Virus-Scanned: Debian amavisd-new at mailout.easymail.ca X-Spam-Flag: NO X-Spam-Score: -3.46 X-Spam-Level: X-Spam-Status: No, score=-3.46 required=5 tests=[ALL_TRUSTED=-1.8, AWL=-0.794, BAYES_00=-2.599, DNS_FROM_AHBL_RHSBL=0.692, FS_REPLICA=1.041] Received: from mailout.easymail.ca ([127.0.0.1]) by localhost (easymail-mailout.easydns.vpn [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 1oAkTDU9UeIt; Wed, 11 Feb 2015 10:04:45 -0500 (EST) Received: from [192.168.2.16] (unknown [8.39.228.5]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mailout.easymail.ca (Postfix) with ESMTPSA id A6F65E615; Wed, 11 Feb 2015 10:04:45 -0500 (EST) Content-Type: text/plain; charset=us-ascii Mime-Version: 1.0 (Mac OS X Mail 8.2 \(2070.6\)) Subject: Re: Upgrading to 9.4 to get replication slots (was Re: Streaming replication and WAL archiving) From: Scott Ribe In-Reply-To: <20150211094535.5f130601@hydrogen.roaringpenguin.com> Date: Wed, 11 Feb 2015 08:04:43 -0700 Cc: pgsql-admin@postgresql.org Content-Transfer-Encoding: quoted-printable Message-Id: <2C73CF9C-A3FF-41DA-BDBC-94BE0C18E332@elevated-dev.com> References: <20150210172139.237ffb0b@ollie.roaringpenguin.com> <20150211092743.460e6bfe@hydrogen.roaringpenguin.com> <54DB693A.7010705@gmail.com> <20150211094535.5f130601@hydrogen.roaringpenguin.com> To: "David F. Skoll" X-Mailer: Apple Mail (2.2070.6) X-Pg-Spam-Score: -2.6 (--) List-Archive: List-Help: List-ID: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: X-Mailing-List: pgsql-admin Precedence: bulk Sender: pgsql-admin-owner@postgresql.org On Feb 11, 2015, at 7:45 AM, David F. Skoll wrote: >=20 > Dump/restore is not an option for me. It would mean many hours of > downtime which is unacceptable. I can barely get away with two hours > of downtime and that would have to be in the wee hours of Sunday > morning. People tend to get very cranky when their email stops flowing! I don't remember the beginning of the thread. Did you consider Slony? It's = more configuration, but it would reduce downtime to almost 0. --=20 Scott Ribe scott_ribe@elevated-dev.com http://www.elevated-dev.com/ (303) 722-0567 voice --=20 Sent via pgsql-admin mailing list (pgsql-admin@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-admin