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 4.92) (envelope-from ) id 1j9rjC-0000Ae-DK for pgsql-admin@arkaria.postgresql.org; Thu, 05 Mar 2020 14:43:58 +0000 Received: from localhost ([127.0.0.1] helo=malur.postgresql.org) by malur.postgresql.org with esmtp (Exim 4.89) (envelope-from ) id 1j9rjB-0000Ue-36 for pgsql-admin@arkaria.postgresql.org; Thu, 05 Mar 2020 14:43:57 +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 1j9rjA-0000UW-Pu for pgsql-admin@lists.postgresql.org; Thu, 05 Mar 2020 14:43:56 +0000 Received: from mailout.easymail.ca ([64.68.200.34]) by magus.postgresql.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1j9rj7-0000tC-Fv for pgsql-admin@postgresql.org; Thu, 05 Mar 2020 14:43:56 +0000 Received: from localhost (localhost [127.0.0.1]) by mailout.easymail.ca (Postfix) with ESMTP id 34396BFF3E for ; Thu, 5 Mar 2020 14:43:51 +0000 (UTC) X-Virus-Scanned: Debian amavisd-new at emo04-pco.easydns.vpn Received: from mailout.easymail.ca ([127.0.0.1]) by localhost (emo04-pco.easydns.vpn [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id mI6Ngsv7kLPc for ; Thu, 5 Mar 2020 14:43:51 +0000 (UTC) Received: from [192.168.2.127] (unknown [8.39.228.117]) (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 C8680BFF10 for ; Thu, 5 Mar 2020 14:43:50 +0000 (UTC) From: Scott Ribe Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: quoted-printable Mime-Version: 1.0 (Mac OS X Mail 13.0 \(3608.60.0.2.5\)) Subject: shm Message-Id: <565DBAD4-E79D-4EE0-89C4-ABE33AD0C0A7@elevated-dev.com> Date: Thu, 5 Mar 2020 07:43:49 -0700 To: pgsql-admin X-Mailer: Apple Mail (2.3608.60.0.2.5) List-Id: List-Help: List-Subscribe: List-Post: List-Owner: List-Archive: Precedence: bulk What is POSIX shared memory used for anymore? Shared buffers now = defaults to mmap, right? So when I run out of shm in Kubernetes because = of the 64MB limit, what is actually causing it to run out? (I know about creating the memory-based volume and mounting it at = /dev/shm, and have implemented that workaround. Still want to know what = is causing this memory use.) -- Scott Ribe scott_ribe@elevated-dev.com https://www.linkedin.com/in/scottribe/