Return-Path: Delivered-To: apmail-cassandra-user-archive@www.apache.org Received: (qmail 7389 invoked from network); 13 Apr 2011 12:30:43 -0000 Received: from hermes.apache.org (HELO mail.apache.org) (140.211.11.3) by minotaur.apache.org with SMTP; 13 Apr 2011 12:30:43 -0000 Received: (qmail 7065 invoked by uid 500); 13 Apr 2011 12:30:41 -0000 Delivered-To: apmail-cassandra-user-archive@cassandra.apache.org Received: (qmail 7038 invoked by uid 500); 13 Apr 2011 12:30:41 -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 7030 invoked by uid 99); 13 Apr 2011 12:30:41 -0000 Received: from nike.apache.org (HELO nike.apache.org) (192.87.106.230) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 13 Apr 2011 12:30:41 +0000 X-ASF-Spam-Status: No, hits=4.3 required=5.0 tests=FS_REPLICA,RCVD_IN_DNSWL_NONE,SPF_NEUTRAL X-Spam-Check-By: apache.org Received-SPF: neutral (nike.apache.org: local policy) Received: from [98.130.1.164] (HELO mail508.opentransfer.com) (98.130.1.164) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 13 Apr 2011 12:30:34 +0000 Received: (qmail 9055 invoked by uid 399); 13 Apr 2011 12:30:07 -0000 Received: from unknown (HELO ?172.16.100.192?) (202.154.226.233) by mail508.opentransfer.com with ESMTP; 13 Apr 2011 12:30:07 -0000 X-Originating-IP: 202.154.226.233 Message-ID: <4DA5974D.3080105@panasiangroup.com> Date: Wed, 13 Apr 2011 17:30:05 +0500 From: Ali Ahsan User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.2.13) Gecko/20101208 Lightning/1.0b2 Thunderbird/3.1.7 MIME-Version: 1.0 To: user@cassandra.apache.org Subject: Re: Cassandra node's replication factor two with random partition non Bootstrap node problem References: <1302618388.3794.34.camel@mierdi-laptop> <4DA47CCD.50509@panasiangroup.com> <1302630144.1732.2.camel@Avalon> <4DA491EE.6010500@panasiangroup.com> <4DA49374.5080707@panasiangroup.com> In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Virus-Checked: Checked by ClamAV on apache.org This solved we are doing some thing wrong in our application thanks for your help. On 04/13/2011 01:43 AM, Peter Schuller wrote: >> I have two cassandra node's,If Boot strapped nodes goes down my service >> remains alive,But if my non Bootstrap (master) node goes down my live site >> goes down as well,I am using cassandra 0.6.3 can any elaborate on this >> problem. > Assuming your RF is 2 (not 1), and that you are reading at consistency > level ONE (not QUORUM, which would be 2 in the case of RF=2), > single-node failures should be tolerated. > > In order for people to help you'd have to specify some more > informaton. For example, your "site goes down" - but what is the > actual error condition w.r.t. Cassandra? What is the error reported by > the Cassandra client (and which client is it)? > > I'm not sure what you mean w.r.t. boostrap/master etc. All nodes > should be entirely equal, with the exception of nodes that are marked > as seed nodes. But seed nodes going down should not cause reads and > writes to fail. > -- S.Ali Ahsan Senior System Engineer e-Business (Pvt) Ltd 49-C Jail Road, Lahore, P.O. Box 676 Lahore 54000, Pakistan Tel: +92 (0)42 3758 7140 Ext. 128 Mobile: +92 (0)345 831 8769 Fax: +92 (0)42 3758 0027 Email: ali.ahsan@panasiangroup.com www.ebusiness-pg.com www.panasiangroup.com Confidentiality: This e-mail and any attachments may be confidential and/or privileged. If you are not a named recipient, please notify the sender immediately and do not disclose the contents to another person use it for any purpose or store or copy the information in any medium. Internet communications cannot be guaranteed to be timely, secure, error or virus-free. We do not accept liability for any errors or omissions.