From: Wendy Cheng Subject: Re: [PATCH 1/2] NLM failover unlock commands Date: Fri, 18 Jan 2008 09:56:38 -0500 Message-ID: <4790BE26.30304@redhat.com> References: <478D14C5.1000804@redhat.com> <18317.7319.443532.62244@notabene.brown> <478D3820.9080402@redhat.com> <20080117151007.GB16581@fieldses.org> <478F78E8.40601@redhat.com> <20080117163105.GG16581@fieldses.org> <478F82DA.4060709@redhat.com> <20080117164002.GH16581@fieldses.org> <478F9946.9010601@redhat.com> <20080117202342.GA6416@fieldses.org> <20080118100308.GA26106@janus> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Cc: "J. Bruce Fields" , Neil Brown , Christoph Hellwig , NFS list , cluster-devel@redhat.com To: Frank van Maarseveen Return-path: Received: from mx1.redhat.com ([66.187.233.31]:54372 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755240AbYARPAo (ORCPT ); Fri, 18 Jan 2008 10:00:44 -0500 In-Reply-To: <20080118100308.GA26106@janus> Sender: linux-nfs-owner@vger.kernel.org List-ID: Frank van Maarseveen wrote: > >> - We want to be able to move an export to a node with an already >> active nfs server. Currently that requires restarting all of >> nfsd on the target node. This is what I understand your next >> patch fixes. >> > > Maybe a silly question but what about using "exportfs -r" for this? > /me prays we won't go back to our *old* export failover proposal (about two years ago) :) ... Anyway, re-export is part of the required steps that take-over server needs to do. It, however, doesn't handle lockd grace period so we will have the possibility that other client will steal the locks away. That's why Bruce and I are working on the second "resume" patch at this moment. -- Wendy