Received: from malur.postgresql.org ([217.196.149.56]) by arkaria.postgresql.org with esmtp (Exim 4.84_2) (envelope-from ) id 1dxPwl-0000e0-Ql for pgsql-docs@arkaria.postgresql.org; Thu, 28 Sep 2017 03:57:11 +0000 Received: from localhost ([127.0.0.1] helo=postgresql.org) by malur.postgresql.org with smtp (Exim 4.84_2) (envelope-from ) id 1dxPwk-0003Hh-Pd for pgsql-docs@arkaria.postgresql.org; Thu, 28 Sep 2017 03:57:10 +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 1dxPwj-0003Gg-N1 for pgsql-docs@postgresql.org; Thu, 28 Sep 2017 03:57:09 +0000 Received: from sss.pgh.pa.us ([66.207.139.130]) by makus.postgresql.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA384:256) (Exim 4.84_2) (envelope-from ) id 1dxPwh-0004aB-2i for pgsql-docs@postgresql.org; Thu, 28 Sep 2017 03:57:08 +0000 Received: from sss1.sss.pgh.pa.us (localhost [127.0.0.1]) by sss.pgh.pa.us (8.14.4/8.14.4) with ESMTP id v8S3v5XC002249; Wed, 27 Sep 2017 23:57:05 -0400 From: Tom Lane To: Michael Paquier , jens@wilke.org, pgsql-docs@postgresql.org Subject: Re: adduser is missing --system In-reply-to: <6000.1506552367@sss.pgh.pa.us> References: <20170927213344.28558.2373@wrigleys.postgresql.org> <6000.1506552367@sss.pgh.pa.us> Comments: In-reply-to Tom Lane message dated "Wed, 27 Sep 2017 18:46:07 -0400" MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-ID: <2247.1506571025.1@sss.pgh.pa.us> Date: Wed, 27 Sep 2017 23:57:05 -0400 Message-ID: <2248.1506571025@sss.pgh.pa.us> List-Archive: List-Help: List-ID: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: X-Mailing-List: pgsql-docs Precedence: bulk Sender: pgsql-docs-owner@postgresql.org I wrote: > The issue might be moot as of v10 anyway, because of this other commit: Ah, scratch that, I'd forgotten the discussion here: https://www.postgresql.org/message-id/flat/32387.1481079186%40sss.pgh.pa.us The switch to unnamed POSIX semaphores will help, but it's not a complete fix because default-configured systemd will still break DSM usage. In practice I think that means that parallel queries launching at the same moment you log out will fail. That's way more survivable than the semaphores going away, but it's still not very nice. regards, tom lane -- Sent via pgsql-docs mailing list (pgsql-docs@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-docs