Return-Path: Delivered-To: apmail-cassandra-user-archive@www.apache.org Received: (qmail 58268 invoked from network); 13 Jun 2010 23:55:46 -0000 Received: from unknown (HELO mail.apache.org) (140.211.11.3) by 140.211.11.9 with SMTP; 13 Jun 2010 23:55:46 -0000 Received: (qmail 27595 invoked by uid 500); 13 Jun 2010 23:55:45 -0000 Delivered-To: apmail-cassandra-user-archive@cassandra.apache.org Received: (qmail 27559 invoked by uid 500); 13 Jun 2010 23:55:44 -0000 Mailing-List: contact user-help@cassandra.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: user@cassandra.apache.org Delivered-To: mailing list user@cassandra.apache.org Received: (qmail 27551 invoked by uid 99); 13 Jun 2010 23:55:44 -0000 Received: from athena.apache.org (HELO athena.apache.org) (140.211.11.136) by apache.org (qpsmtpd/0.29) with ESMTP; Sun, 13 Jun 2010 23:55:44 +0000 X-ASF-Spam-Status: No, hits=0.7 required=10.0 tests=AWL,RCVD_IN_DNSWL_NONE,SPF_NEUTRAL X-Spam-Check-By: apache.org Received-SPF: neutral (athena.apache.org: local policy) Received: from [209.85.216.172] (HELO mail-qy0-f172.google.com) (209.85.216.172) by apache.org (qpsmtpd/0.29) with ESMTP; Sun, 13 Jun 2010 23:55:37 +0000 Received: by qyk8 with SMTP id 8so317853qyk.31 for ; Sun, 13 Jun 2010 16:55:16 -0700 (PDT) MIME-Version: 1.0 Received: by 10.224.112.194 with SMTP id x2mr1675127qap.263.1276473316489; Sun, 13 Jun 2010 16:55:16 -0700 (PDT) Received: by 10.229.233.202 with HTTP; Sun, 13 Jun 2010 16:55:16 -0700 (PDT) In-Reply-To: References: Date: Sun, 13 Jun 2010 16:55:16 -0700 Message-ID: Subject: Re: Beginner Assumptions From: Benjamin Black To: user@cassandra.apache.org Content-Type: text/plain; charset=ISO-8859-1 On Sun, Jun 13, 2010 at 3:08 PM, Mark Robson wrote: > > Range queries I think make them less useful, Not to my knowledge. > but only work if you're using > OrderPreservingPartitioner. The OPP comes with its own caveats - your nodes > are likely to become badly unbalanced, particularly if you use time-based > keys. I am aware of the need for careful token selection and cluster management. You can mitigate much of the problem using randomized keys, in effect emulating RP. My question stands. b