Return-Path: Delivered-To: apmail-couchdb-user-archive@www.apache.org Received: (qmail 76424 invoked from network); 28 Feb 2009 13:42:53 -0000 Received: from hermes.apache.org (HELO mail.apache.org) (140.211.11.2) by minotaur.apache.org with SMTP; 28 Feb 2009 13:42:53 -0000 Received: (qmail 88703 invoked by uid 500); 28 Feb 2009 13:42:51 -0000 Delivered-To: apmail-couchdb-user-archive@couchdb.apache.org Received: (qmail 88647 invoked by uid 500); 28 Feb 2009 13:42:51 -0000 Mailing-List: contact user-help@couchdb.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: user@couchdb.apache.org Delivered-To: mailing list user@couchdb.apache.org Received: (qmail 88636 invoked by uid 99); 28 Feb 2009 13:42:51 -0000 Received: from athena.apache.org (HELO athena.apache.org) (140.211.11.136) by apache.org (qpsmtpd/0.29) with ESMTP; Sat, 28 Feb 2009 05:42:51 -0800 X-ASF-Spam-Status: No, hits=-0.0 required=10.0 tests=SPF_PASS X-Spam-Check-By: apache.org Received-SPF: pass (athena.apache.org: domain of antony.blakey@gmail.com designates 209.85.198.233 as permitted sender) Received: from [209.85.198.233] (HELO rv-out-0506.google.com) (209.85.198.233) by apache.org (qpsmtpd/0.29) with ESMTP; Sat, 28 Feb 2009 13:42:43 +0000 Received: by rv-out-0506.google.com with SMTP id f6so1494841rvb.35 for ; Sat, 28 Feb 2009 05:42:23 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:message-id:from:to :in-reply-to:content-type:content-transfer-encoding:mime-version :subject:date:references:x-mailer; bh=1BpykJ0VJ17GZbN9ibkVXTvUnfDpdqToPp/zLnozrh0=; b=dqhWC6N2gyVgNiZHebxpi7Yr6Ny81n6a3LC2IXjXjtB47lqd4/Cv1AIcLCkEKvSalX 726lkJ8Ar5IvyKvsBqio7e39kRHjdKfUnEa2rW3PjYhpN3YRC0gOO/3J0SJSm2TkJtbt OFZELSeL7aIOVWCxj3FookIMeOMDcGkUBhQGw= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:from:to:in-reply-to:content-type :content-transfer-encoding:mime-version:subject:date:references :x-mailer; b=e/XjsZM4/1UT1JeAlAdov8etPCYa3UcYBK+E3ATPHGjkrfydD8VSUMI72avoReqhNv cyyXilLkTI+t12p5mGYqw1UceoFEvfUXvK3oYoiYBS84mPVHaD1njGsLOhKFScSITkdk 9lFek97/yrKFNieJozC5kJYN9SCGCQymhDI8w= Received: by 10.142.84.5 with SMTP id h5mr1866075wfb.200.1235828543284; Sat, 28 Feb 2009 05:42:23 -0800 (PST) Received: from ?192.168.0.16? (ppp121-45-202-232.lns10.adl2.internode.on.net [121.45.202.232]) by mx.google.com with ESMTPS id 22sm8314051wfg.43.2009.02.28.05.42.21 (version=TLSv1/SSLv3 cipher=RC4-MD5); Sat, 28 Feb 2009 05:42:22 -0800 (PST) Message-Id: <1DCF2549-61AB-43EB-8240-519748E0E667@gmail.com> From: Antony Blakey To: user@couchdb.apache.org In-Reply-To: Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes Content-Transfer-Encoding: 7bit Mime-Version: 1.0 (Apple Message framework v930.3) Subject: Re: Why sequential document ids? [was: Re: What's the speed(performance) of couchdb?] Date: Sun, 1 Mar 2009 00:12:17 +1030 References: <60D10DCD-C1F7-4663-B6DF-60DD4641672C@apache.org> <4703936A-A1E8-46C0-B2F4-0DA9FD5D5B9A@apache.org> <8A824EA9-82FA-482C-BF87-691D522C4FC3@cisco.com> <94A51F43-404D-4728-B5B6-8B502EC07E24@apache.org> X-Mailer: Apple Mail (2.930.3) X-Virus-Checked: Checked by ClamAV on apache.org On 28/02/2009, at 4:41 AM, Chris Anderson wrote: > I wonder if there's a way to get roughly ascending uuids (v1-ish) > without the security issues that come from having the originating node > permanently inscribed on each document... What security issues are you thinking of? I ask because (NodeId, Sequence#) gives a form of global partial ordering that can be useful, within the constraints of no global time. Antony Blakey ------------- CTO, Linkuistics Pty Ltd Ph: 0438 840 787 Some defeats are instalments to victory. -- Jacob Riis