Return-Path: Delivered-To: apmail-cassandra-user-archive@www.apache.org Received: (qmail 95625 invoked from network); 14 Jun 2010 18:13:50 -0000 Received: from unknown (HELO mail.apache.org) (140.211.11.3) by 140.211.11.9 with SMTP; 14 Jun 2010 18:13:50 -0000 Received: (qmail 22905 invoked by uid 500); 14 Jun 2010 18:13:48 -0000 Delivered-To: apmail-cassandra-user-archive@cassandra.apache.org Received: (qmail 22865 invoked by uid 500); 14 Jun 2010 18:13:48 -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 22857 invoked by uid 99); 14 Jun 2010 18:13:48 -0000 Received: from nike.apache.org (HELO nike.apache.org) (192.87.106.230) by apache.org (qpsmtpd/0.29) with ESMTP; Mon, 14 Jun 2010 18:13:48 +0000 X-ASF-Spam-Status: No, hits=0.0 required=10.0 tests=FREEMAIL_FROM,SPF_PASS,T_TO_NO_BRKTS_FREEMAIL X-Spam-Check-By: apache.org Received-SPF: pass (nike.apache.org: domain of whitesensless@googlemail.com designates 209.85.214.44 as permitted sender) Received: from [209.85.214.44] (HELO mail-bw0-f44.google.com) (209.85.214.44) by apache.org (qpsmtpd/0.29) with ESMTP; Mon, 14 Jun 2010 18:13:41 +0000 Received: by bwz13 with SMTP id 13so2081536bwz.31 for ; Mon, 14 Jun 2010 11:13:21 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=googlemail.com; s=gamma; h=domainkey-signature:received:mime-version:received:from:date :message-id:subject:to:content-type; bh=WveVTYlgRh0WG0g/VMuuEM5+fZV3sdw0VkYhM+Yx85o=; b=hBgttd00POcPYcZWIYqE3bpDhAfrXysJmKMBF8E+LToQCq7EEipqwjcdbqZJOmYYSk NvBlQXISoUoWak1aWi2YKs+a7Rl85falJz+Y94W30BFpQAd80wglF+jK9PwEAF+mx4Ar FTqOpL0Y1/lfXhaiKWHQFfhSOFXKLoAMQX39Q= DomainKey-Signature: a=rsa-sha1; c=nofws; d=googlemail.com; s=gamma; h=mime-version:from:date:message-id:subject:to:content-type; b=FWTHM4A4lz8T0rolzyRTfl9u2OwydGAk9Cs/zfa3vKQ3WsAysd5ghBWWfnHIV2U2hr EJFCcxlbK26kgApa9tQ12n+R0aLGLzhWmpdAjE8mfQNWTmqlbv0+GneHKOKMz43DRY68 0slTBxn7NnRk4Ei2Q8dx6H94kaAxkpx/EDwdk= Received: by 10.204.47.6 with SMTP id l6mr4548744bkf.90.1276539201256; Mon, 14 Jun 2010 11:13:21 -0700 (PDT) MIME-Version: 1.0 Received: by 10.204.84.194 with HTTP; Mon, 14 Jun 2010 11:13:01 -0700 (PDT) From: Johannes Weissensel Date: Mon, 14 Jun 2010 20:13:01 +0200 Message-ID: Subject: help for designing a cassandra To: user@cassandra.apache.org Content-Type: text/plain; charset=ISO-8859-1 X-Virus-Checked: Checked by ClamAV on apache.org Hi everyone, i am new to nosql databases and especially column-oriented Databases like cassandra. I am a student on information-systems and i evaluate a fitting no-sql database for a web analytics system. Got the use-case of data like webserver-logfile. in an RDBMS it would be for every hit a row in the database, and than endless grouping and counting on the data for getting the metrics you want. Is there anyone who has experiences with data like that in hypertable, how should i design the database? Also for every hit a single row, or maybe for every session an aggregated version of the data, or for every day and every page a single aggregated version. Maybe some has an idea, how to design the database? Just like an typical not normalized sql database? Hope you have some ideas :) Johannes