Return-Path: X-Original-To: apmail-qpid-users-archive@www.apache.org Delivered-To: apmail-qpid-users-archive@www.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id 04FCB6200 for ; Tue, 2 Aug 2011 09:43:27 +0000 (UTC) Received: (qmail 95021 invoked by uid 500); 2 Aug 2011 09:43:26 -0000 Delivered-To: apmail-qpid-users-archive@qpid.apache.org Received: (qmail 94644 invoked by uid 500); 2 Aug 2011 09:43:12 -0000 Mailing-List: contact users-help@qpid.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: users@qpid.apache.org Delivered-To: mailing list users@qpid.apache.org Received: (qmail 94631 invoked by uid 99); 2 Aug 2011 09:43:07 -0000 Received: from athena.apache.org (HELO athena.apache.org) (140.211.11.136) by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 02 Aug 2011 09:43:07 +0000 X-ASF-Spam-Status: No, hits=-5.0 required=5.0 tests=RCVD_IN_DNSWL_HI,SPF_HELO_PASS,SPF_PASS X-Spam-Check-By: apache.org Received-SPF: pass (athena.apache.org: domain of gsim@redhat.com designates 209.132.183.28 as permitted sender) Received: from [209.132.183.28] (HELO mx1.redhat.com) (209.132.183.28) by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 02 Aug 2011 09:43:01 +0000 Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id p729ges5021922 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK) for ; Tue, 2 Aug 2011 05:42:40 -0400 Received: from [10.3.227.211] (vpn-227-211.phx2.redhat.com [10.3.227.211]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id p729gd4G021337 for ; Tue, 2 Aug 2011 05:42:40 -0400 Message-ID: <4E37C656.1040308@redhat.com> Date: Tue, 02 Aug 2011 10:41:42 +0100 From: Gordon Sim Organization: Red Hat UK Ltd, Registered in England and Wales under Company Registration No. 3798903, Directors: Michael Cunningham (USA), Mark Hegarty (Ireland), Matt Parsons (USA), Charlie Peters (USA) User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.1.15) Gecko/20101027 Fedora/3.0.10-1.fc12 Lightning/1.0b1 Thunderbird/3.0.10 MIME-Version: 1.0 To: users@qpid.apache.org Subject: Re: Too many open files References: <06139A918ACCA041BF46A0F36940C7FA0834576C@exch-mbx1.msk.trd.ru> In-Reply-To: <06139A918ACCA041BF46A0F36940C7FA0834576C@exch-mbx1.msk.trd.ru> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 On 08/01/2011 11:53 AM, Zhemzhitsky Sergey wrote: > We have already set ulimit to be able to open 16384 files, but the error still happens from time to time. > Could you help us to identify the possible sources of this issue. How many connections and durable queues do you expect to have? Each durable queue uses 4 file handles at least (depending on configuration, and assuming you are using the qpidcomponents.org store plugin). Each connection will also use a file handle. Is it possible for example that you have e.g. stale queues that are no longer needed but taking up file handles? --------------------------------------------------------------------- Apache Qpid - AMQP Messaging Implementation Project: http://qpid.apache.org Use/Interact: mailto:users-subscribe@qpid.apache.org