Received: from malur.postgresql.org ([217.196.149.56]) by arkaria.postgresql.org with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1rf2WX-00F3hq-Nz for pgsql-admin@arkaria.postgresql.org; Tue, 27 Feb 2024 18:49:54 +0000 Received: from localhost ([127.0.0.1] helo=malur.postgresql.org) by malur.postgresql.org with esmtp (Exim 4.94.2) (envelope-from ) id 1rf2WU-0058Xc-Q9 for pgsql-admin@arkaria.postgresql.org; Tue, 27 Feb 2024 18:49:51 +0000 Received: from magus.postgresql.org ([2a02:c0:301:0:ffff::29]) by malur.postgresql.org with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1rf2WU-0058XU-FN for pgsql-admin@lists.postgresql.org; Tue, 27 Feb 2024 18:49:50 +0000 Received: from mailout.easymail.ca ([64.68.200.34]) by magus.postgresql.org with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1rf2WS-001X7f-CW for pgsql-admin@lists.postgresql.org; Tue, 27 Feb 2024 18:49:50 +0000 Received: from localhost (localhost [127.0.0.1]) by mailout.easymail.ca (Postfix) with ESMTP id F14AFEB058; Tue, 27 Feb 2024 18:48:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=elevated-dev.com; s=easymail; t=1709059726; bh=RR3+8BFa8DTEdgPvKHnKxeIfxjEBG71DcNwvpYyrNKw=; h=Subject:From:In-Reply-To:Date:Cc:References:To:From; b=Mp837SE715M6btZme4v9Kx5U0XKeB72JoUPSs+0vkrDaKjrhV9fwbeKgRPVDt2qRG oAEzpXGR3tIr4I3mw5m7Zx0f4bUJzMau23RAKQG4aiO442+ns1WO3M8XsEO3jR0yHY 2nhTQ0ho3RkGvlmOZDUlcUSvvAZKzfER6JTYjJTHFQGHR/AgYQoBhr+nriv205HCkn CZhthWuCGQJRM5GJcfNbQ/f8rH2LT0LRAvBN9+pE4he+2+byR9achBzdjijw8JEVA8 qwuBpzjn9ryzHMkwpbyxRgQ6qT+z3eogtR/OqO/EsYlHuG8E252vsuTTisdaMmCn4U mFj0/oeQMpl1Q== X-Virus-Scanned: Debian amavisd-new at emo08-pco.easydns.vpn Received: from mailout.easymail.ca ([127.0.0.1]) by localhost (emo08-pco.easydns.vpn [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id Bl829M2CCCEB; Tue, 27 Feb 2024 18:48:45 +0000 (UTC) Received: from smtpclient.apple (unknown [165.140.184.195]) (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 513BAEC947; Tue, 27 Feb 2024 18:48:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=elevated-dev.com; s=easymail; t=1709059725; bh=RR3+8BFa8DTEdgPvKHnKxeIfxjEBG71DcNwvpYyrNKw=; h=Subject:From:In-Reply-To:Date:Cc:References:To:From; b=3lHZsa1sNjounNzo0i68webNxiij7j5dzMkncH9JM6K/Zn+tTsBM0BIhIoOcI2LbV BHVfnJg07y3lMyBZ4bsERvaD6OMZkYST6DFZUBIn++t1oB3UbJT/GfYoYlgrp3Xvid p3lRsqe045p7EU6InCuc/noWXseT40G6dnpFQKnahvwpjQGM+/2+ereooaVX5X7jbN h9+4ywN9Z+TJaY2JwQNFQUk1r8x6qYj7X8sM12Wjd6NTiNGkhLkZI5V9Akm7zlUKDX hEr8Dn4jPs8AhUehQB1rKQpxgU+ub1rBOAIZ00sv2LpZHyvVcXP4U0CKYCh2CK59Hz l8fe9+erPwlWQ== Content-Type: text/plain; charset=utf-8 Mime-Version: 1.0 (Mac OS X Mail 16.0 \(3774.400.31\)) Subject: Re: explosive WAL growth From: Scott Ribe In-Reply-To: <202402271822.t4vbqds7mjge@alvherre.pgsql> Date: Tue, 27 Feb 2024 11:48:34 -0700 Cc: Pgsql-admin Content-Transfer-Encoding: quoted-printable Message-Id: <1334AE42-2DBF-4DA5-8F7B-529013796F55@elevated-dev.com> References: <202402271822.t4vbqds7mjge@alvherre.pgsql> To: Alvaro Herrera X-Mailer: Apple Mail (2.3774.400.31) List-Id: List-Help: List-Subscribe: List-Post: List-Owner: List-Archive: Archived-At: Precedence: bulk Found it. Kubernetes cronjob task. > On Feb 27, 2024, at 11:22=E2=80=AFAM, Alvaro Herrera = wrote: >=20 > It could be autovacuum processing large tables that haven't been > processed in a long time, in emergency mode. This happens if you turn > it off and do nothing to substitute it. We have autovacuum on, and pretty well tuned. > Some backup tools implement parallel archiving of WAL files, which = helps > you deal with massive accumulation of them. We'll get that in an upgrade we're getting ready to deploy. Ironically, = it might have just hidden this problem ;-)=