From: Brian Tinsley Subject: Re: nfs failover Date: Sat, 10 Jan 2004 22:55:37 -0600 Sender: nfs-admin@lists.sourceforge.net Message-ID: <1073796936.2771.18.camel@dragonball> References: <20040111030238.18638.qmail@web12607.mail.yahoo.com> Mime-Version: 1.0 Content-Type: multipart/alternative; boundary="=-u0IsBsyoNz+VGkOHp2lU" Cc: nfs@lists.sourceforge.net Return-path: Received: from sc8-sf-mx2-b.sourceforge.net ([10.3.1.12] helo=sc8-sf-mx2.sourceforge.net) by sc8-sf-list2.sourceforge.net with esmtp (Exim 4.24) id 1AfXde-0003QD-Ke for nfs@lists.sourceforge.net; Sat, 10 Jan 2004 20:55:50 -0800 Received: from [63.162.183.61] (helo=emgexg01.emgdom001.emageon.com) by sc8-sf-mx2.sourceforge.net with esmtp (Exim 4.30) id 1AfXde-0006dr-At for nfs@lists.sourceforge.net; Sat, 10 Jan 2004 20:55:50 -0800 To: Eric Ford In-Reply-To: <20040111030238.18638.qmail@web12607.mail.yahoo.com> Errors-To: nfs-admin@lists.sourceforge.net List-Unsubscribe: , List-Id: Discussion of NFS under Linux development, interoperability, and testing. List-Post: List-Help: List-Subscribe: , List-Archive: --=-u0IsBsyoNz+VGkOHp2lU Content-Type: text/plain Content-Transfer-Encoding: 7bit There are some specific events that must occur in order to make NFS server failover happen. You should search the mailing list archives for the linux-ha software (a.k.a., heartbeat) for further details. NFS server failover has been detailed there quite extensively over the past couple of years. And if you do not use linux-ha for clustering (especially in the context you describe here), I suggest you give it a try. On Sat, 2004-01-10 at 21:02, Eric Ford wrote: > Hello, everybody > > I installed nfs on my cluster system, two head nodes(one is primary > and another is backup) with two clients. They use NFS to store and > transfer data between server and clients. But whenever failover > happens, the client can't connect to backup server although > backup server has the same IP and hostname and same configuration at > that time. > > "NFS server is not responding, still trying" > > I use this command: #service nfs restart on backup server, it is > not useful. > > What should I do on backup server so that client can get connection > with it? By the way I use Pfilter (iptables) on both servers. > > Thank you > > Eric > > > ______________________________________________________________________ > Do you Yahoo!? > Yahoo! Hotjobs: Enter the "Signing Bonus" Sweepstakes --=-u0IsBsyoNz+VGkOHp2lU Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: 7bit There are some specific events that must occur in order to make NFS server failover happen. You should search the mailing list archives for the linux-ha software (a.k.a., heartbeat) for further details. NFS server failover has been detailed there quite extensively over the past couple of years. And if you do not use linux-ha for clustering (especially in the context you describe here), I suggest you give it a try.

On Sat, 2004-01-10 at 21:02, Eric Ford wrote:

Hello, everybody

I installed nfs on my cluster system, two head nodes(one is primary and another is backup) with two clients. They use NFS to store and transfer data between server and clients. But whenever failover happens, the client can't connect to backup server although
backup server has the same IP and hostname and same configuration at that time.

"NFS server is not responding, still trying"

I use this command: #service nfs restart on backup server, it is not useful.

What should I do on backup server so that client can get connection with it? By the way I use Pfilter (iptables) on both servers.

Thank you

Eric

Do you Yahoo!?
Yahoo! Hotjobs: Enter the "Signing Bonus" Sweepstakes

--=-u0IsBsyoNz+VGkOHp2lU-- ------------------------------------------------------- This SF.net email is sponsored by: Perforce Software. Perforce is the Fast Software Configuration Management System offering advanced branching capabilities and atomic changes on 50+ platforms. Free Eval! http://www.perforce.com/perforce/loadprog.html _______________________________________________ NFS maillist - NFS@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/nfs