Received: from malur.postgresql.org ([217.196.149.56]) by arkaria.postgresql.org with esmtp (Exim 4.80) (envelope-from ) id 1ZAkEq-0003Bo-23 for pgsql-performance@arkaria.postgresql.org; Thu, 02 Jul 2015 19:33:36 +0000 Received: from localhost ([127.0.0.1] helo=postgresql.org) by malur.postgresql.org with smtp (Exim 4.84) (envelope-from ) id 1ZAkEp-0007RC-7N for pgsql-performance@arkaria.postgresql.org; Thu, 02 Jul 2015 19:33:35 +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) (envelope-from ) id 1ZAkEn-0007Og-98 for pgsql-performance@postgresql.org; Thu, 02 Jul 2015 19:33:33 +0000 Received: from 01.zmailcloud.com ([192.198.85.104] helo=mx-out-1.zmailcloud.com) by makus.postgresql.org with esmtp (Exim 4.84) (envelope-from ) id 1ZAkEk-0005K8-AO for pgsql-performance@postgresql.org; Thu, 02 Jul 2015 19:33:32 +0000 Received: from smtp.01.com (smtp.01.com [10.10.0.43]) by mx-out-1.zmailcloud.com (Postfix) with ESMTP id 01C5B5640DA; Thu, 2 Jul 2015 14:33:30 -0500 (CDT) Received: from localhost (localhost [127.0.0.1]) by smtp-out-1.01.com (Postfix) with ESMTP id D539FA032B; Thu, 2 Jul 2015 14:33:29 -0500 (CDT) X-Virus-Scanned: amavisd-new at smtp-out-1.01.com Received: from smtp.01.com ([127.0.0.1]) by localhost (smtp-out-1.01.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id Oyc1_rw3DTDd; Thu, 2 Jul 2015 14:33:29 -0500 (CDT) Received: from smtp.01.com (localhost [127.0.0.1]) by smtp-out-1.01.com (Postfix) with ESMTP id A1936A03F5; Thu, 2 Jul 2015 14:33:29 -0500 (CDT) Received: from localhost (localhost [127.0.0.1]) by smtp-out-1.01.com (Postfix) with ESMTP id 80CF6A03F3; Thu, 2 Jul 2015 14:33:29 -0500 (CDT) X-Virus-Scanned: amavisd-new at smtp-out-1.01.com Received: from smtp.01.com ([127.0.0.1]) by localhost (smtp-out-1.01.com [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id gVZ5KS1aSXAm; Thu, 2 Jul 2015 14:33:29 -0500 (CDT) Received: from [172.47.23.103] (50-0-190-244.dsl.dynamic.fusionbroadband.com [50.0.190.244]) by smtp-out-1.01.com (Postfix) with ESMTPSA id 14B98A032B; Thu, 2 Jul 2015 14:33:28 -0500 (CDT) Message-ID: <55959207.7020906@agliodbs.com> Date: Thu, 02 Jul 2015 12:33:27 -0700 From: Josh Berkus Organization: PostgreSQL Experts Inc. User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.7.0 MIME-Version: 1.0 To: eudald_v , pgsql-performance@postgresql.org Subject: Re: Sudden connection and load average spikes with postgresql 9.3 References: <1435675936590-5855895.post@n5.nabble.com> <55931EB0.1000003@agliodbs.com> <1435851680008-5856298.post@n5.nabble.com> In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-Pg-Spam-Score: -1.9 (-) List-Archive: List-Help: List-ID: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: X-Mailing-List: pgsql-performance Precedence: bulk Sender: pgsql-performance-owner@postgresql.org On 07/02/2015 08:41 AM, eudald_v wrote: > And this is how it looks like when the spike happens: > http://pastebin.com/2hAYuDZ5 Hmm, those incredibly high system % indicate that there's something wrong with your system. If you're not using software RAID or ZFS, you should never see that. I think you have a driver, kernel, Linux memory management, or IO stack issue. -- Josh Berkus PostgreSQL Experts Inc. http://pgexperts.com -- Sent via pgsql-performance mailing list (pgsql-performance@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance