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 A335E10352 for ; Fri, 7 Feb 2014 18:42:02 +0000 (UTC) Received: (qmail 71801 invoked by uid 500); 7 Feb 2014 18:41:59 -0000 Delivered-To: apmail-cassandra-user-archive@cassandra.apache.org Received: (qmail 71770 invoked by uid 500); 7 Feb 2014 18:41:59 -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 71762 invoked by uid 99); 7 Feb 2014 18:41:58 -0000 Received: from nike.apache.org (HELO nike.apache.org) (192.87.106.230) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 07 Feb 2014 18:41:58 +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 rcoli@eventbrite.com designates 209.85.215.52 as permitted sender) Received: from [209.85.215.52] (HELO mail-la0-f52.google.com) (209.85.215.52) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 07 Feb 2014 18:41:52 +0000 Received: by mail-la0-f52.google.com with SMTP id c6so2933541lan.39 for ; Fri, 07 Feb 2014 10:41:31 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:date :message-id:subject:from:to:content-type; bh=4N6HXM2OkhvcBupsaem2vp0CHv8ZcS3vn9GTiJmSSdQ=; b=hxLnHaLA1s5MbDNpZcXuveURMzRvQ2NFyjYz/HnnU0GRKOQT87TLly359tyt816zUH GSHiSFt2E5jKfM/qtLK7IbRzbQbzdGgsEcKvhgrX6uk5IwEkBh9nq9uepMMF/Dbcn2+Q Z9zSSJzqx4qdUqG9Vb5uCFlv5wdvV6Z6aaGBXIF1mTzRofJSsRxo0BDrwmGpfqOKizmG XJvV2oNu7ISr7jnqlxxAQuixNGjW74gRLMZbuiaOuDu1UXvqlqumcYCzzf/V2L3izNrP 1p2tT4fwFtwSwtsI4XzFOdB8f+rmkfdueagyHToStIFCbI/L/XiTPriRan4xqkTgiqD5 Fw/w== X-Gm-Message-State: ALoCoQk/zQgT2KBtvHVanA+GdU1YOUWcDIIMd20BHCp1uZGaCb1mfB7Z0Fk8AjUGc8tcmh9ge8Ba MIME-Version: 1.0 X-Received: by 10.112.142.40 with SMTP id rt8mr61389lbb.52.1391798491394; Fri, 07 Feb 2014 10:41:31 -0800 (PST) Received: by 10.114.80.65 with HTTP; Fri, 7 Feb 2014 10:41:31 -0800 (PST) In-Reply-To: References: Date: Fri, 7 Feb 2014 10:41:31 -0800 Message-ID: Subject: Re: Adding datacenter for move to vnodes From: Robert Coli To: "user@cassandra.apache.org" Content-Type: multipart/alternative; boundary=001a11c37ae4add2d404f1d55633 X-Virus-Checked: Checked by ClamAV on apache.org --001a11c37ae4add2d404f1d55633 Content-Type: text/plain; charset=ISO-8859-1 On Fri, Feb 7, 2014 at 5:18 AM, Vasileios Vlachos < vasileiosvlachos@gmail.com> wrote: > Say you have 6 nodes with 300G each. So you decommission N1 and you bring > it back in with Vnodes. Is that going to stream back 90%+ of the 300Gx6, or > it eventually will hold the 90%+ of all the data stored into your cluster? > If the second is what actually happens, this process should be safe on a > live cluster as well, given that you are going to upgrade the other 5 nodes > straight after.. > https://issues.apache.org/jira/browse/CASSANDRA-5525 ? =Rob --001a11c37ae4add2d404f1d55633 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable
On F= ri, Feb 7, 2014 at 5:18 AM, Vasileios Vlachos <vasileiosvlachos@g= mail.com> wrote:

Say you have 6 nodes with 300G each. So you= decommission N1 and you bring it back in with Vnodes. Is that going to str= eam back 90%+ of the 300Gx6, or it eventually will hold the 90%+ of all the= data stored into your cluster? If the second is what actually happens, thi= s process should be safe on a live cluster as well, given that you are goin= g to upgrade the other 5 nodes straight after..


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