Return-Path: Delivered-To: apmail-cassandra-user-archive@www.apache.org Received: (qmail 21558 invoked from network); 28 Sep 2010 06:50:46 -0000 Received: from unknown (HELO mail.apache.org) (140.211.11.3) by 140.211.11.9 with SMTP; 28 Sep 2010 06:50:46 -0000 Received: (qmail 91766 invoked by uid 500); 28 Sep 2010 06:50:44 -0000 Delivered-To: apmail-cassandra-user-archive@cassandra.apache.org Received: (qmail 91599 invoked by uid 500); 28 Sep 2010 06:50:41 -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 91591 invoked by uid 99); 28 Sep 2010 06:50:40 -0000 Received: from athena.apache.org (HELO athena.apache.org) (140.211.11.136) by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 28 Sep 2010 06:50:40 +0000 X-ASF-Spam-Status: No, hits=0.0 required=10.0 tests=FREEMAIL_FROM,SPF_HELO_PASS,SPF_PASS,T_TO_NO_BRKTS_FREEMAIL,UNPARSEABLE_RELAY X-Spam-Check-By: apache.org Received-SPF: pass (athena.apache.org: domain of gcdcu-cassandra-user-1@m.gmane.org designates 80.91.229.12 as permitted sender) Received: from [80.91.229.12] (HELO lo.gmane.org) (80.91.229.12) by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 28 Sep 2010 06:50:33 +0000 Received: from list by lo.gmane.org with local (Exim 4.69) (envelope-from ) id 1P0U0w-0000PQ-5V for user@cassandra.apache.org; Tue, 28 Sep 2010 08:50:10 +0200 Received: from rev-89-111-19-52.deac.net ([rev-89-111-19-52.deac.net]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Tue, 28 Sep 2010 08:50:10 +0200 Received: from oleganas by rev-89-111-19-52.deac.net with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Tue, 28 Sep 2010 08:50:10 +0200 X-Injected-Via-Gmane: http://gmane.org/ To: user@cassandra.apache.org From: Oleg Anastasyev Subject: Re: UnavailableException when data grows Date: Tue, 28 Sep 2010 06:50:01 +0000 (UTC) Lines: 45 Message-ID: References:

Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Complaints-To: usenet@dough.gmane.org X-Gmane-NNTP-Posting-Host: sea.gmane.org User-Agent: Loom/3.14 (http://gmane.org/) X-Loom-IP: 89.111.19.52 (Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.2.10) Gecko/20100915 Ubuntu/10.04 (lucid) Firefox/3.6.10) Rana Aich gmail.com> writes: > > Yet my nodetool shows the following: > > 192.168.202.202Down 319.94 GB 7200044730783885730400843868815072654 |<--| > 192.168.202.4 Up 382.39 GB 23719654286404067863958492664769598669 | ^ > 192.168.202.2 Up 106.81 GB 36701505058375526444137310055285336988 v | > 192.168.202.3 Up 149.81 GB 65098486053779167479528707238121707074 | ^ > 192.168.202.201Up 154.72 GB 79420606800360567885560534277526521273 v | > 192.168.202.204Up 72.91 GB 85219217446418416293334453572116009608 | ^ > 192.168.202.1 Up 29.78 GB 87632302962564279114105239858760976120 v | > 192.168.202.203Up 9.35 GB 87790520647700936489181912967436646309 |-->| It seems you did not configured tokens in your ring at all - automatic configuration is useless in practice. If you used random partitioning, for 8 nodes cluster these token configuration seems more reasonable: 1: 0 2: 21267647932558653966460912964485513216 3: 42535295865117307932921825928971026432 4: 63802943797675961899382738893456539648 5: 85070591730234615865843651857942052864 6: 106338239662793269832304564822427566080 7: 127605887595351923798765477786913079296 8: 148873535527910577765226390751398592512 You can generate token configuration for any cluster size by using tool http://people.apache.org/~pquerna/cassandra_tokens.py