From owner-freebsd-hackers@FreeBSD.ORG Fri Feb 18 14:38:25 2005 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id E1E8416A4CF for ; Fri, 18 Feb 2005 14:38:25 +0000 (GMT) Received: from hermes.hw.ru (hermes.hw.ru [80.68.240.91]) by mx1.FreeBSD.org (Postfix) with ESMTP id 556AD43D58 for ; Fri, 18 Feb 2005 14:38:24 +0000 (GMT) (envelope-from myself@rojer.pp.ru) Received: from [80.68.243.98] (account rojer@rbc.ru HELO [80.68.243.98]) by hermes.hw.ru (CommuniGate Pro SMTP 4.1.8) with ESMTP-TLS id 72209513; Fri, 18 Feb 2005 17:38:22 +0300 Message-ID: <4215FDDD.40605@rojer.pp.ru> Date: Fri, 18 Feb 2005 17:38:21 +0300 From: Deomid Ryabkov User-Agent: Mozilla Thunderbird 1.0 (Windows/20041206) X-Accept-Language: en-us, en MIME-Version: 1.0 To: ALeine References: <200502171834.j1HIYVCL072428@marlena.vvi.at> In-Reply-To: <200502171834.j1HIYVCL072428@marlena.vvi.at> Content-Type: multipart/signed; protocol="application/x-pkcs7-signature"; micalg=sha1; boundary="------------ms050408060204000706070506" cc: freebsd-hackers@freebsd.org Subject: Re: occasional ECONNREFUSED when connect()ing. X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 18 Feb 2005 14:38:26 -0000 This is a cryptographically signed message in MIME format. --------------ms050408060204000706070506 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit ALeine wrote: >>After further investigation and digging, I uncovered the true cause of >>the error: connect() returning ECONNREFUSED. >> >> > >You are probably exhausting the queue of pending connections, you may want >to read man 2 listen and use sysctl to set kern.ipc.somaxconn accordingly. > > no, can't be. server and client are completely synchronous, in the sense that there are no pending requests at all. new connection is opened only after previos has been closed. besides, i set backlog = 511 when calling listen(). kern.ipc.somaxconn is 128, but you see that errors start to appear even before that number of requests. -- Deomid Ryabkov aka Rojer myself@rojer.pp.ru rojer@sysadmins.ru ICQ: 8025844 --------------ms050408060204000706070506 Content-Type: application/x-pkcs7-signature; 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