From mboxrd@z Thu Jan 1 00:00:00 1970 From: Valerie Henson Subject: Re: Fix(es) for ext2 fsync bug Date: Tue, 20 Feb 2007 21:39:29 +0000 Message-ID: <20070220213927.GG5264@nifty> References: <20070214195453.GB7521@nifty> <20070215142020.GA9930@thunk.org> <1171552162.21710.9.camel@kleikamp.austin.ibm.com> <20070220211300.GA5264@nifty> <21e789ec0702201330x1c2706b7kcd055b97cb37e0e@mail.gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: Dave Kleikamp , Theodore Tso , linux-fsdevel@vger.kernel.org, Can Sar , Dawson Engler To: Junfeng Yang Return-path: Received: from mga06.intel.com ([134.134.136.21]:28604 "EHLO orsmga101.jf.intel.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1030449AbXBTVjd (ORCPT ); Tue, 20 Feb 2007 16:39:33 -0500 Content-Disposition: inline In-Reply-To: <21e789ec0702201330x1c2706b7kcd055b97cb37e0e@mail.gmail.com> Sender: linux-fsdevel-owner@vger.kernel.org List-Id: linux-fsdevel.vger.kernel.org On Tue, Feb 20, 2007 at 01:30:25PM -0800, Junfeng Yang wrote: > On 2/20/07, Valerie Henson wrote: > > > >Google. (GoogleFS runs on top of ext2.) > > It's surprising to know that... I guess they reply on GoogleFS's own > replication and checksumming for consistency. Yep, they just want a local file system with ultrafast on-line performance. They don't care about recovery time particularly because of the GoogleFS replication (although I heard rumors they have some fast fsck scheme, maybe resembling the dirty bit stuff I did last year). -VAL