Return-Path: X-Original-To: apmail-cassandra-user-archive@www.apache.org Delivered-To: apmail-cassandra-user-archive@www.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id A5F609353 for ; Thu, 10 May 2012 19:22:05 +0000 (UTC) Received: (qmail 62133 invoked by uid 500); 10 May 2012 19:22:03 -0000 Delivered-To: apmail-cassandra-user-archive@cassandra.apache.org Received: (qmail 62053 invoked by uid 500); 10 May 2012 19:22:03 -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 62044 invoked by uid 99); 10 May 2012 19:22:03 -0000 Received: from nike.apache.org (HELO nike.apache.org) (192.87.106.230) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 10 May 2012 19:22:03 +0000 X-ASF-Spam-Status: No, hits=1.5 required=5.0 tests=HTML_MESSAGE,RCVD_IN_DNSWL_LOW,SPF_PASS X-Spam-Check-By: apache.org Received-SPF: pass (nike.apache.org: domain of bill.w.au@gmail.com designates 209.85.213.44 as permitted sender) Received: from [209.85.213.44] (HELO mail-yw0-f44.google.com) (209.85.213.44) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 10 May 2012 19:21:55 +0000 Received: by yhq56 with SMTP id 56so2249365yhq.31 for ; Thu, 10 May 2012 12:21:35 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:date:message-id:subject:from:to:content-type; bh=6tRKf+wPNeCoE6GLmnThbbPnDBMnv4EGog6o7PZZ1cs=; b=dSpnbJHmtWtQVkdxa2h8YnwZlOjTczNw2I51VtwWBexAwMeYAlwBFaDBB2ELYmL0Tf CbJQB9hO8/FVEYZpc0sIljleIflZ7bZnvR4+4owe73uqKTSQ9xrHffqE9skuplLJDYG4 xkIbCsv+yBa3z+QPLhcWsVOJ+bA8+qMOAfJxqE/qj5mlH7g8INx8BOCn1fKO/p/Cjb52 pqNQwFdZ21xvyoDHw3YUb7hjzIJKeT8FJ8QiOr6lhWCJlVoJ5oA37HTjeu2SM9af7EdA dNChji0hrrupWrZM8fD50sRS+j5eZlvcz51s/oHNuMxtnxq0c+tGM4JlHEx/ja2LOtrC P0xg== MIME-Version: 1.0 Received: by 10.60.5.231 with SMTP id v7mr7441438oev.61.1336677694810; Thu, 10 May 2012 12:21:34 -0700 (PDT) Received: by 10.182.45.7 with HTTP; Thu, 10 May 2012 12:21:34 -0700 (PDT) Date: Thu, 10 May 2012 15:21:34 -0400 Message-ID: Subject: removing second data center from live cluster From: Bill Au To: user@cassandra.apache.org Content-Type: multipart/alternative; boundary=e89a8ff253502daba504bfb3879c --e89a8ff253502daba504bfb3879c Content-Type: text/plain; charset=ISO-8859-1 My cluster is currently running with 2 data centers, dc1 and dc2. I would like to remove dc2 and all its nodes completely. I am using local quorum for read and right. I figure that I need to change the replication factor to {dc1:3, dc2:0} before running nodetool decommission on each node in dc2. Is that the right approach? Is there anything I need to watch out for? Bill --e89a8ff253502daba504bfb3879c Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable My cluster is currently running with 2 data centers, dc1 and dc2.=A0 I woul= d like to remove dc2 and all its nodes completely.=A0 I am using local quor= um for read and right.=A0 I figure that I need to change the replication fa= ctor to {dc1:3, dc2:0} before running nodetool decommission on each node in= dc2.=A0 Is that the right approach?=A0 Is there anything I need to watch o= ut for?

Bill
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