Received: from malur.postgresql.org ([217.196.149.56]) by arkaria.postgresql.org with esmtp (Exim 4.84_2) (envelope-from ) id 1dIHHw-00023U-7w for pgsql-admin@arkaria.postgresql.org; Tue, 06 Jun 2017 16:25:00 +0000 Received: from localhost ([127.0.0.1] helo=postgresql.org) by malur.postgresql.org with smtp (Exim 4.84_2) (envelope-from ) id 1dIHHv-0007mc-Qw for pgsql-admin@arkaria.postgresql.org; Tue, 06 Jun 2017 16:24:59 +0000 Received: from makus.postgresql.org ([2001:4800:1501:1::229]) by malur.postgresql.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA384:256) (Exim 4.84_2) (envelope-from ) id 1dIHG9-0004ct-HD for pgsql-admin@postgresql.org; Tue, 06 Jun 2017 16:23:09 +0000 Received: from mailout.easymail.ca ([64.68.200.34]) by makus.postgresql.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA384:256) (Exim 4.84_2) (envelope-from ) id 1dIHG6-0001Z1-U2 for pgsql-admin@postgresql.org; Tue, 06 Jun 2017 16:23:08 +0000 Received: from localhost (localhost [127.0.0.1]) by mailout.easymail.ca (Postfix) with ESMTP id 910B043A40; Tue, 6 Jun 2017 16:23:05 +0000 (UTC) Received: from mailout.easymail.ca ([127.0.0.1]) by localhost (emo03-pco.easydns.vpn [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id RCyZDO9dqU2w; Tue, 6 Jun 2017 16:23:05 +0000 (UTC) Received: from [192.168.2.118] (unknown [8.39.228.5]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mailout.easymail.ca (Postfix) with ESMTPSA id DD006437C6; Tue, 6 Jun 2017 16:23:03 +0000 (UTC) Content-Type: text/plain; charset=us-ascii Mime-Version: 1.0 (Mac OS X Mail 10.3 \(3273\)) Subject: Re: Does Postgres ever write to tables without file system timestamps getting updated? From: scott ribe In-Reply-To: Date: Tue, 6 Jun 2017 10:23:02 -0600 Cc: pgsql-admin@postgresql.org Content-Transfer-Encoding: quoted-printable Message-Id: <56559FCA-392D-4F38-8A15-C220892C46C3@elevated-dev.com> References: <143511646.20170606100454@am-soft.de> <1599962113.20170606153203@am-soft.de> <1112549709.20170606163951@am-soft.de> To: David Steele X-Mailer: Apple Mail (2.3273) X-Pg-Spam-Score: -1.9 (-) 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 To be clear, for potential future readers, just using checksum is not enoug= h to back up a live database. You still have to use pg_start_backup and pay= attention to its documentation re WAL files. > On Jun 6, 2017, at 8:54 AM, David Steele wrote: >=20 > This is why it is not safe to do incremental backups of PostgreSQL with > rsync without using checksums. -- Scott Ribe scott_ribe@elevated-dev.com (303) 722-0567 --=20 Sent via pgsql-admin mailing list (pgsql-admin@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-admin