Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932192AbVIEPrA (ORCPT ); Mon, 5 Sep 2005 11:47:00 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932206AbVIEPrA (ORCPT ); Mon, 5 Sep 2005 11:47:00 -0400 Received: from smtp.istop.com ([66.11.167.126]:60638 "EHLO smtp.istop.com") by vger.kernel.org with ESMTP id S932192AbVIEPq7 (ORCPT ); Mon, 5 Sep 2005 11:46:59 -0400 From: Daniel Phillips To: Lars Marowsky-Bree Subject: Re: GFS, what's remaining Date: Mon, 5 Sep 2005 11:49:49 -0400 User-Agent: KMail/1.8 Cc: Andi Kleen , linux clustering , akpm@osdl.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org References: <20050901104620.GA22482@redhat.com> <200509030157.31581.phillips@istop.com> <20050905141432.GF5498@marowsky-bree.de> In-Reply-To: <20050905141432.GF5498@marowsky-bree.de> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200509051149.49929.phillips@istop.com> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1416 Lines: 32 On Monday 05 September 2005 10:14, Lars Marowsky-Bree wrote: > On 2005-09-03T01:57:31, Daniel Phillips wrote: > > The only current users of dlms are cluster filesystems. There are zero > > users of the userspace dlm api. > > That is incorrect... Application users Lars, sorry if I did not make that clear. The issue is whether we need to export an all-singing-all-dancing dlm api from kernel to userspace today, or whether we can afford to take the necessary time to get it right while application writers take their time to have a good think about whether they even need it. > ...and you're contradicting yourself here: How so? Above talks about dlm, below talks about cluster membership. > > What does have to be resolved is a common API for node management. It is > > not just cluster filesystems and their lock managers that have to > > interface to node management. Below the filesystem layer, cluster block > > devices and cluster volume management need to be coordinated by the same > > system, and above the filesystem layer, applications also need to be > > hooked into it. This work is, in a word, incomplete. Regards, Daniel - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/