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 DF22FEC29 for ; Wed, 13 Feb 2013 00:17:28 +0000 (UTC) Received: (qmail 1286 invoked by uid 500); 13 Feb 2013 00:17:26 -0000 Delivered-To: apmail-cassandra-user-archive@cassandra.apache.org Received: (qmail 1251 invoked by uid 500); 13 Feb 2013 00:17:26 -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 1242 invoked by uid 99); 13 Feb 2013 00:17:26 -0000 Received: from athena.apache.org (HELO athena.apache.org) (140.211.11.136) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 13 Feb 2013 00:17:26 +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 (athena.apache.org: domain of edlinuxguru@gmail.com designates 209.85.212.173 as permitted sender) Received: from [209.85.212.173] (HELO mail-wi0-f173.google.com) (209.85.212.173) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 13 Feb 2013 00:17:22 +0000 Received: by mail-wi0-f173.google.com with SMTP id hq4so5087269wib.12 for ; Tue, 12 Feb 2013 16:17:00 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:x-received:in-reply-to:references:date:message-id :subject:from:to:content-type; bh=4INdQp100yK0qSdC+wm5JQAgfYf45haiAJJcVRSAMrM=; b=IpBJOa6g+dOJrdww1/qfUl0uYUHlP8XeJUF/Cd4z5xT+jwmIt+2Uf9bBzaSZA7p/pH d1VHOSbdy5rkEFr0HqPqi9otLoVOLlka2xE/9728L5gF+okkHtfBWpvnLft2Zp7GBDDL UwyZ0UONhg4Jr9ILruNTZvdmAU6u4avMcEkafB4if0FqQOv9X0RNdfkCuYCh6S7chY/n XI5dNwW9ZpjKUlDwvkOcIXgcG4H+LAcE4Xm8TjcgK7dSDnjfLuj9OXG4CbZJhw+XZXhX lzH0GNgoH2pcQ5xynPAMRqWGaggc+BH93sJUfs8A/aWR/kSxQrueS76mrNPnqqyNDLBz +39Q== MIME-Version: 1.0 X-Received: by 10.180.102.201 with SMTP id fq9mr6452910wib.2.1360714620868; Tue, 12 Feb 2013 16:17:00 -0800 (PST) Received: by 10.194.61.137 with HTTP; Tue, 12 Feb 2013 16:17:00 -0800 (PST) In-Reply-To: References: <333B362E7B77B344A2D0FD92840282611F81E988B8@MSGCMSIL1003.ent.wfb.bank.corp> <93D300EB-D605-4FFA-9F65-BF9428CF94B2@thelastpickle.com> <333B362E7B77B344A2D0FD92840282611F81E98CFE@MSGCMSIL1003.ent.wfb.bank.corp> <333B362E7B77B344A2D0FD92840282611F81F1A773@MSGCMSIL1003.ent.wfb.bank.corp> <9856D22F-8A4E-4FA1-91EE-09DB074A9DC7@thelastpickle.com> <333B362E7B77B344A2D0FD92840282611F81F7BA70@MSGCMSIL1003.ent.wfb.bank.corp> <27CF7402-2CE8-4068-8ABF-60358CA41B7B@thelastpickle.com> Date: Tue, 12 Feb 2013 19:17:00 -0500 Message-ID: Subject: Re: unbalanced ring From: Edward Capriolo To: "user@cassandra.apache.org" Content-Type: multipart/alternative; boundary=f46d04451a7d9e18f004d5900fc0 X-Virus-Checked: Checked by ClamAV on apache.org --f46d04451a7d9e18f004d5900fc0 Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: quoted-printable I take that back. vnodes are useful for any size cluster, but I do not see them as a day one requirement. It seems like many people are stumbling over this. On Tuesday, February 12, 2013, Edward Capriolo wrote: > > Are vnodes on by default. It seems that many on list are using this feature with small clusters. > > I know these days anything named virtual is sexy, but they are not useful for small clusters are they. I do not see why people are using them. > > On Monday, February 11, 2013, aaron morton wrote: >> So when you say to do this with a =93clean=94 setup, what are you askin= g me to do? >> >> Yup >> clear /var/lib/casssandra/data /commitlog /saved_caches >> start the cluster >> use nodetool ring >> You may also want to play with https://github.com/pcmanus/ccm to create a local 3 node cluster to see the difference. Note that the updateconfig setting cannot remove a config setting, so you will need edit the yaml for the nodes. >> Cheers >> ----------------- >> Aaron Morton >> Freelance Cassandra Developer >> New Zealand >> @aaronmorton >> http://www.thelastpickle.com >> On 12/02/2013, at 7:57 AM, Stephen.M.Thompson@wellsfargo.com wrote: >> >> Aaron, thanks for your feedback. >> >> .125 >> num_tokens: 256 >> # initial_token: >> >> .126 >> num_tokens: 256 >> #initial_token: >> >> .127 >> num_tokens: 256 >> # initial_token: >> >> This all looks correct. So when you say to do this with a =93clean=94 setup, what are you asking me to do? Is it enough to blow away /var/lib/cassandra and reload the data? Also destroy my Cassandra install (which is just un-tar) and reinstall from nothing? >> >> Stephen Thompson >> Wells Fargo Corporation >> Internet Authentication & Fraud Prevention >> 704.427.3137 (W) | 704.807.3431 (C) >> >> This message may contain confidential and/or privileged information, and is intended for the use of the addressee only. If you are not the addressee or authorized to receive thi --f46d04451a7d9e18f004d5900fc0 Content-Type: text/html; charset=windows-1252 Content-Transfer-Encoding: quoted-printable
I take that back. vnodes are useful for any size cluster, but I do not = see them as a day one requirement. It seems like many people are stumbling = over this.

On Tuesday, February 12, 2013, Edward Capriolo <edlinuxguru@gmail.com> wrote:
>
> Are vnodes on by default. It seems that many on list are using= this feature with small clusters.
>
> I know these days anythi= ng named virtual is sexy, but they are not useful for small clusters are th= ey. I do not see why people are using them.
>
> On Monday, February 11, 2013, aaron morton <aaron@thelastpickle.com> wrote:
>&= gt; =A0So when you say to do this with a =93clean=94 setup, what are you as= king me to do?
>>
>> Yup
>> clear /var/lib/casssandra/data /commit= log /saved_caches
>> start the cluster
>> use nodetool ri= ng=A0
>> You may also want to play with=A0https://github.com/pcmanus/ccm=A0to create a local 3= node cluster to see the difference. Note that the updateconfig setting can= not remove a config setting, so you will need edit the yaml for the nodes.<= br> >> Cheers
>> -----------------
>> Aaron Morton
&= gt;> Freelance Cassandra Developer
>> New Zealand
>> @= aaronmorton
>> http://www= .thelastpickle.com
>> On 12/02/2013, at 7:57 AM, Stephen.M.Thompson@wellsfargo.com wrote:
>>
&= gt;> Aaron, thanks for your feedback.
>> =A0
>> .125 >> num_tokens: 256
>> # initial_token:
>> =A0
&g= t;> .126
>> num_tokens: 256
>> #initial_token:
>= > =A0
>> .127
>> num_tokens: 256
>> # initial= _token:
>> =A0
>> This all looks correct.=A0 So when you say to do t= his with a =93clean=94 setup, what are you asking me to do?=A0 Is it enough= to blow away /var/lib/cassandra and reload the data?=A0 Also destroy my Ca= ssandra install (which is just un-tar) and reinstall from nothing?=A0
>> =A0
>> Stephen Thompson
>> Wells Fargo Corporati= on
>> Internet Authentication & Fraud Prevention
>> 7= 04.427.3137 (W) | 704.807.3431 (C)
>> =A0
>> This message= may contain confidential and/or privileged information, and is intended fo= r the use of the addressee only. If you are not the addressee or authorized= to receive thi --f46d04451a7d9e18f004d5900fc0--