From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: with ECARTIS (v1.0.0; list xfs); Tue, 19 Feb 2008 03:44:31 -0800 (PST) Received: from cuda.sgi.com (cuda2.sgi.com [192.48.168.29]) by oss.sgi.com (8.12.11.20060308/8.12.11/SuSE Linux 0.7) with ESMTP id m1JBiP1G030732 for ; Tue, 19 Feb 2008 03:44:26 -0800 Received: from smtp-out002.kontent.com (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 147435F0642 for ; Tue, 19 Feb 2008 03:44:50 -0800 (PST) Received: from smtp-out002.kontent.com (smtp-out002.kontent.com [81.88.40.216]) by cuda.sgi.com with ESMTP id fY8zNrBOsIGZcaj2 for ; Tue, 19 Feb 2008 03:44:50 -0800 (PST) Message-ID: <47BAC139.3000109@theendofthetunnel.de> Date: Tue, 19 Feb 2008 12:44:57 +0100 From: Hannes Dorbath MIME-Version: 1.0 Subject: Re: tuning, many small files, small blocksize References: <47BA10EC.3090004@tlinx.org> <20080218235103.GW155407@sgi.com> <47BA2AFD.2060409@tlinx.org> <20080219024924.GB155407@sgi.com> <18362.37642.577718.529415@tree.ty.sabi.co.UK> In-Reply-To: <18362.37642.577718.529415@tree.ty.sabi.co.UK> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: xfs-bounce@oss.sgi.com Errors-to: xfs-bounce@oss.sgi.com List-Id: xfs To: Peter Grandi Cc: Linux XFS > That sounds like a good use for a LDAP database, but using > Berkeley DB directly may be best. One could also do a FUSE module > or a special purpose NFS server that presents a Berkeley DB as a > filesystem, but then we would be getting rather close to ReiserFS. During testing of HA clusters some time ago I found BDB to always be the first thing to break. It seems to have very poor recovery and seems not fine with neither file systems snapshots nor power failures. Nevertheless it's claimed ACID conform. I don't know -- from my experience I wouldn't even put my address book on it. Personally I ended up doing this for OpenLDAP and never looked back: http://www.samse.fr/GPL/ldap_pg/HOWTO/x12.html -- Best regards, Hannes Dorbath