From owner-freebsd-hackers@FreeBSD.ORG Wed Jun 2 10:05:23 2004 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 3FB4816A5DD for ; Wed, 2 Jun 2004 10:05:23 -0700 (PDT) Received: from salvador.pacific.net.sg (salvador.pacific.net.sg [203.120.90.219]) by mx1.FreeBSD.org (Postfix) with SMTP id 4AA7D43D1F for ; Wed, 2 Jun 2004 10:05:22 -0700 (PDT) (envelope-from oceanare@pacific.net.sg) Received: (qmail 13679 invoked from network); 2 Jun 2004 17:05:08 -0000 Received: from unknown (HELO maxwell2.pacific.net.sg) (203.120.90.192) by salvador with SMTP; 2 Jun 2004 17:05:07 -0000 Received: from pacific.net.sg ([210.24.202.26]) by maxwell2.pacific.net.sg with ESMTP id <20040602170507.ZLPM1277.maxwell2.pacific.net.sg@pacific.net.sg>; Thu, 3 Jun 2004 01:05:07 +0800 Message-ID: <40BE08B9.8070807@pacific.net.sg> Date: Thu, 03 Jun 2004 01:04:57 +0800 From: Erich Dollansky Organization: oceanare pte ltd User-Agent: Mozilla/5.0 (X11; U; FreeBSD i386; en-US; rv:1.7b) Gecko/20040409 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Aniruddha Bohra References: <40BDF377.4000900@jaist.ac.jp> <40BE05C0.1090807@pacific.net.sg> <40BE0747.2050405@cs.rutgers.edu> In-Reply-To: <40BE0747.2050405@cs.rutgers.edu> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit cc: freebsd-hackers@freebsd.org Subject: Re: suggestions ? 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: Wed, 02 Jun 2004 17:05:23 -0000 Hi, Aniruddha Bohra wrote: >>> i was thinking about implementing Robust TCP/IP connections .. but >>> somebody told me that is not very consistent , and i think so also , >>> >> Did you consider fault-tolerant TCP/IP connections to multiple servers? > > > See these : > This one is heavy-weight, whole process wrapping etc. > Also the implementation is on Linux. > Engineering fault-tolerant TCP/IP servers using FT-TCP. > D. Zagorodnov, K. Marzullo, L. Alvisi, and T.C. Bressoud. > In Proc. IEEE Intl. Conf. on Dependable Systems and Networks (DSN), > > http://www.cs.ucsd.edu/~dzagorod/research/pubs/zagorodnov_et_al-fttcp-dsn03.pdf > > > > This one is lightweight(in place logging), > works for TCP/IP and for pipes and the implementation is on > FreeBSD. > Service Continuations: An Operating System Mechanism for Dynamic > Migration of Internet Service Sessions. > F. Sultan, A. Bohra, L. Iftode. > The 22nd Symposium on Reliable Distributed Systems (SRDS), October 2003. > > http://discolab.rutgers.edu/sc/srds03.ps > I did not know of them. Thanks! Erich > Cheers > Aniruddha > >> >> This would make it very easy to implement fault-tolerant systems with >> FreeBSD if the communication is TCP/IP based. >> >> Erich >> _______________________________________________ >> freebsd-hackers@freebsd.org mailing list >> http://lists.freebsd.org/mailman/listinfo/freebsd-hackers >> To unsubscribe, send any mail to >> "freebsd-hackers-unsubscribe@freebsd.org" > > >