Return-Path: Delivered-To: apmail-cassandra-dev-archive@www.apache.org Received: (qmail 76065 invoked from network); 7 Oct 2010 12:31:16 -0000 Received: from unknown (HELO mail.apache.org) (140.211.11.3) by 140.211.11.9 with SMTP; 7 Oct 2010 12:31:16 -0000 Received: (qmail 18194 invoked by uid 500); 7 Oct 2010 12:31:15 -0000 Delivered-To: apmail-cassandra-dev-archive@cassandra.apache.org Received: (qmail 18061 invoked by uid 500); 7 Oct 2010 12:31:12 -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 18053 invoked by uid 99); 7 Oct 2010 12:31:12 -0000 Received: from nike.apache.org (HELO nike.apache.org) (192.87.106.230) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 07 Oct 2010 12:31:12 +0000 X-ASF-Spam-Status: No, hits=-0.0 required=10.0 tests=SPF_PASS X-Spam-Check-By: apache.org Received-SPF: pass (nike.apache.org: local policy) Received: from [150.140.141.169] (HELO poseidon.ceid.upatras.gr) (150.140.141.169) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 07 Oct 2010 12:31:03 +0000 Received: from mail.ceid.upatras.gr (unknown [10.1.0.143]) by poseidon.ceid.upatras.gr (Postfix) with ESMTP id BFC4DEB48D2 for ; Thu, 7 Oct 2010 15:30:42 +0300 (EEST) Received: from localhost (europa.ceid.upatras.gr [127.0.0.1]) by mail.ceid.upatras.gr (Postfix) with ESMTP id 7BCCC16014D for ; Thu, 7 Oct 2010 15:30:42 +0300 (EEST) X-Virus-Scanned: amavisd-new at ceid.upatras.gr Received: from mail.ceid.upatras.gr ([127.0.0.1]) by localhost (europa.ceid.upatras.gr [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id B70WYW2hmcrP for ; Thu, 7 Oct 2010 15:30:42 +0300 (EEST) Received: by mail.ceid.upatras.gr (Postfix, from userid 48) id 5AC51160152; Thu, 7 Oct 2010 15:30:42 +0300 (EEST) Received: from 150.140.193.14 by webmail.ceid.upatras.gr with HTTP; Thu, 7 Oct 2010 15:30:42 +0300 (EEST) Message-ID: <36841.150.140.193.14.1286454642.squirrel@webmail.ceid.upatras.gr> Date: Thu, 7 Oct 2010 15:30:42 +0300 (EEST) Subject: Creating secondary indices after startup From: altanis@ceid.upatras.gr To: dev@cassandra.apache.org User-Agent: SquirrelMail/1.4.8-5.el5_3.7 MIME-Version: 1.0 Content-Type: text/plain;charset=utf-8 Content-Transfer-Encoding: 8bit X-Priority: 3 (Normal) Importance: Normal X-Virus-Checked: Checked by ClamAV on apache.org Hello, I am trying to work out the new secondary index code on my own, as there is no documentation. I've seen the 'Cassandra explained' presentation and the tests related to index queries. What I'd like to know is 1) the basics of the secondary index mechanism (a short human-readable description, as the source is confusing me), and 2) how I can go about implementing support for creating indices on a live cluster (if it can be done) Alexander Altanis