Return-Path: Delivered-To: apmail-cassandra-dev-archive@www.apache.org Received: (qmail 22900 invoked from network); 24 Aug 2010 10:04:00 -0000 Received: from unknown (HELO mail.apache.org) (140.211.11.3) by 140.211.11.9 with SMTP; 24 Aug 2010 10:04:00 -0000 Received: (qmail 28575 invoked by uid 500); 24 Aug 2010 10:04:00 -0000 Delivered-To: apmail-cassandra-dev-archive@cassandra.apache.org Received: (qmail 28156 invoked by uid 500); 24 Aug 2010 10:03:57 -0000 Mailing-List: contact dev-help@cassandra.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: dev@cassandra.apache.org Delivered-To: mailing list dev@cassandra.apache.org Received: (qmail 28143 invoked by uid 99); 24 Aug 2010 10:03:56 -0000 Received: from Unknown (HELO nike.apache.org) (192.87.106.230) by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 24 Aug 2010 10:03:56 +0000 X-ASF-Spam-Status: No, hits=2.2 required=10.0 tests=FREEMAIL_FROM,HTML_MESSAGE,RCVD_IN_DNSWL_NONE,SPF_PASS,T_TO_NO_BRKTS_FREEMAIL X-Spam-Check-By: apache.org Received-SPF: pass (nike.apache.org: domain of nick.telford@tweetmeme.com designates 74.125.82.44 as permitted sender) Received: from [74.125.82.44] (HELO mail-ww0-f44.google.com) (74.125.82.44) by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 24 Aug 2010 10:03:33 +0000 Received: by wwe15 with SMTP id 15so1620260wwe.25 for ; Tue, 24 Aug 2010 03:03:13 -0700 (PDT) MIME-Version: 1.0 Received: by 10.227.136.129 with SMTP id r1mr5747895wbt.114.1282644192779; Tue, 24 Aug 2010 03:03:12 -0700 (PDT) Sender: nick.telford@tweetmeme.com Received: by 10.216.137.234 with HTTP; Tue, 24 Aug 2010 03:03:12 -0700 (PDT) In-Reply-To: References: <90C9BAECF271EE4399D936115703855BB86B558B94@MBXFOC.vinagame.com.vn> Date: Tue, 24 Aug 2010 11:03:12 +0100 X-Google-Sender-Auth: KD0TsWhsc4z8O3jITsAYV08o5Eg Message-ID: Subject: Re: Order preserving partitioning strategy From: Nick Telford To: dev@cassandra.apache.org Content-Type: multipart/alternative; boundary=001485f7965a7bde70048e8edf3d X-Virus-Checked: Checked by ClamAV on apache.org --001485f7965a7bde70048e8edf3d Content-Type: text/plain; charset=ISO-8859-1 The trade-off is in choosing which property you need: order preservation or even load distribution. The only reason a hybrid partitioner doesn't exist is that no one has been able to create one. If you can create a partitioner that allows ordering whilst ensuring an even load distribution, by all means contribute it to the project, we'd all love to have it! If you do manage such a feat, I'd suggest calling it HolyGrailPartitioner. :) --001485f7965a7bde70048e8edf3d--