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 4.89) (envelope-from ) id 1hq4g9-0005sC-Ad for pgsql-hackers@arkaria.postgresql.org; Tue, 23 Jul 2019 23:58:45 +0000 Received: from localhost ([127.0.0.1] helo=malur.postgresql.org) by malur.postgresql.org with esmtp (Exim 4.89) (envelope-from ) id 1hq4f9-0006ue-Rb for pgsql-hackers@arkaria.postgresql.org; Tue, 23 Jul 2019 23:57:43 +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 1hq4f9-0006uX-FW for pgsql-hackers@lists.postgresql.org; Tue, 23 Jul 2019 23:57:43 +0000 Received: from mail-qk1-x743.google.com ([2607:f8b0:4864:20::743]) by magus.postgresql.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.89) (envelope-from ) id 1hq4f6-0002eM-Hk for pgsql-hackers@postgresql.org; Tue, 23 Jul 2019 23:57:43 +0000 Received: by mail-qk1-x743.google.com with SMTP id r4so32416800qkm.13 for ; Tue, 23 Jul 2019 16:57:39 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=2ndquadrant-com.20150623.gappssmtp.com; s=20150623; h=date:from:to:cc:subject:message-id:mime-version:content-disposition :content-transfer-encoding:in-reply-to:user-agent; bh=qnqKSUaYOmfkaqHVKzSHI3SgV7V9XuZZ+gDAhmhIyzE=; b=fkcl7jL87UeHAIZiHs9cc4XPJayLZC2oL5EoQcMxBm8chahdWqffsBIjDwft7s6waj rPQ/SGurcM3RaufGW+nxE3dPJz+aNIdXRyOq8KQ2YlgjGVRy1/dSNXtHxGEjIcCR4Ig9 R+raAztZ6WZVQvWHr1sATHLq78kuc1vXl03yBQg9HYtfdlO5DXOX1krdkQ7BzenIJbtQ GghgfOeqR8q6ac0N86iwvnhxqZS+b0Oxzn2R+U5PBclK/2XHbp75QLXJ2mhgeXYBLfYR ygnxFJz/nGtSXeSP64EESQQ96NIpBwmuVZpZksUUKbSLfHddoQ1ZI6PMw2/DEeGn12+3 DD9g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:mime-version :content-disposition:content-transfer-encoding:in-reply-to :user-agent; bh=qnqKSUaYOmfkaqHVKzSHI3SgV7V9XuZZ+gDAhmhIyzE=; b=uhX/4sk2DcN5DUDTN88VshG5GZPnwGw8qrv4bP29B/zux21B5H4hjUQI8DNd2AcVgx wcwXer9qYcZaqC14Mbs1Q01dr8hsNdtO1xPiwHtJsGxqmrgvPBMqwaK+R3Z+eNd0sLKd TeKCmSzkTODmTylP9eiD2Az8tVd+i7d9CBHKNxT9XuPmZtRGr6K54T8gmIPlGtANnXFx BKERxQhB9FzSUEKk3SKn5rNRwgxS2itP1NONUWfCfAaxOKID/bzmjHWz8QkF8W+EKZDW wMRcILuW32+Iym3M44Di8ChPZfVFmaOXiLFR74kT6ShV4IYX/FBXmQai6zRT+Dvi46Rc SuOQ== X-Gm-Message-State: APjAAAXTB3/WIsbu/D1Uth3FRQd5Q/NX0P3iHd02GX+by1XsK2BQpEGJ raWiLB53XheyH34YRTxR2UUyjw== X-Google-Smtp-Source: APXvYqx01R9DLm/FRuIgIpj5cBwRhLS9Js01r1ZmkS9umfAtr61xFkKcBuZb4v+vifzv/GQKhsdn+Q== X-Received: by 2002:a37:5204:: with SMTP id g4mr49608185qkb.35.1563926258615; Tue, 23 Jul 2019 16:57:38 -0700 (PDT) Received: from nimloth.alvh.no-ip.org ([177.154.145.103]) by smtp.gmail.com with ESMTPSA id i22sm24372817qti.30.2019.07.23.16.57.37 (version=TLS1_3 cipher=AEAD-AES256-GCM-SHA384 bits=256/256); Tue, 23 Jul 2019 16:57:38 -0700 (PDT) Received: by nimloth.alvh.no-ip.org (Postfix, from userid 1000) id F0CA5120876; Tue, 23 Jul 2019 19:57:34 -0400 (-04) Date: Tue, 23 Jul 2019 19:57:34 -0400 From: Alvaro Herrera To: Justin Pryzby Cc: Thomas Munro , Tom Lane , pgsql-hackers Subject: Re: stress test for parallel workers Message-ID: <20190723235734.GA10227@alvherre.pgsql> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20190723230440.GU22387@telsasoft.com> User-Agent: Mutt/1.9.4 (2018-02-28) List-Id: List-Help: List-Subscribe: List-Post: List-Owner: List-Archive: Precedence: bulk On 2019-Jul-23, Justin Pryzby wrote: > I want to say I'm almost certain it wasn't ENOSPC in other cases, since, > failing to find log output, I ran df right after the failure. I'm not sure that this proves much, since I expect temporary files to be deleted on failure; by the time you run 'df' the condition might have already been cleared. You'd need to be capturing diskspace telemetry with sufficient granularity ... -- Álvaro Herrera https://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services