From user-return-8169-apmail-cassandra-user-archive=cassandra.apache.org@cassandra.apache.org Tue Aug 03 01:28:23 2010 Return-Path: Delivered-To: apmail-cassandra-user-archive@www.apache.org Received: (qmail 36251 invoked from network); 3 Aug 2010 01:28:23 -0000 Received: from unknown (HELO mail.apache.org) (140.211.11.3) by 140.211.11.9 with SMTP; 3 Aug 2010 01:28:23 -0000 Received: (qmail 52649 invoked by uid 500); 3 Aug 2010 01:28:21 -0000 Delivered-To: apmail-cassandra-user-archive@cassandra.apache.org Received: (qmail 52586 invoked by uid 500); 3 Aug 2010 01:28:20 -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 52575 invoked by uid 99); 3 Aug 2010 01:28:20 -0000 Received: from athena.apache.org (HELO athena.apache.org) (140.211.11.136) by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 03 Aug 2010 01:28:20 +0000 X-ASF-Spam-Status: No, hits=2.2 required=10.0 tests=HTML_MESSAGE,MIME_QP_LONG_LINE,RCVD_IN_DNSWL_NONE,SPF_PASS X-Spam-Check-By: apache.org Received-SPF: pass (athena.apache.org: local policy) Received: from [208.113.200.5] (HELO homiemail-a41.g.dreamhost.com) (208.113.200.5) by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 03 Aug 2010 01:28:15 +0000 Received: from homiemail-a41.g.dreamhost.com (localhost [127.0.0.1]) by homiemail-a41.g.dreamhost.com (Postfix) with ESMTP id AC39844C06A for ; Mon, 2 Aug 2010 18:27:52 -0700 (PDT) DomainKey-Signature: a=rsa-sha1; c=nofws; d=thelastpickle.com; h=to:from :subject:message-id:content-type:mime-version:in-reply-to:date; q=dns; s=thelastpickle.com; b=HeSMd78wqRm0/3df2hAxWPCmPbvJM1JJl WlDjrlCk6PusPlVILU4ZEXlf0L5W0uzqnka/E783I8sUluDDDlp4F4xysJn+L8fL qDh1mBlELnLVgemCadgubTw2RtlBOl1K0CSBCwA/IEBB3wYQsmIkPAY+GHbj8/1X sfpVrzRxG0= DKIM-Signature: v=1; a=rsa-sha1; c=relaxed; d=thelastpickle.com; h=to :from:subject:message-id:content-type:mime-version:in-reply-to: date; s=thelastpickle.com; bh=EleKBzB0fbGkhPT8JB3VNbBx37E=; b=KY uTEREhSuD1turvJcMyc19NUEsyZojk9dm+HIK2IJ8QECNQnmqlUfmQYVsvFj4ex0 Lb5ChNJcTE2MHDmUm3Ux2ccYZdGFYMGN45GwbWitcV11/hkWEmIgiCgWlYiOA1qJ RJZUEMTkNCk15G8lkoiKV8iO/DVh9h0/lqTLZAloo= Received: from localhost (webms.mac.com [17.148.16.116]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) (Authenticated sender: aaron@thelastpickle.com) by homiemail-a41.g.dreamhost.com (Postfix) with ESMTPSA id 99C3444C062 for ; Mon, 2 Aug 2010 18:27:52 -0700 (PDT) To: user@cassandra.apache.org From: Aaron Morton Subject: Re: Cassandra Scaling Questions X-Mailer: MobileMe Mail (1C2644) Message-id: <948af075-e78f-c65e-ab89-c173d599188e@me.com> Content-Type: multipart/alternative; boundary=Apple-Webmail-42--6890c29c-8b3d-e534-d99d-b70a9de71529 MIME-Version: 1.0 In-Reply-To: Date: Mon, 2 Aug 2010 18:27:52 -0700 (PDT) --Apple-Webmail-42--6890c29c-8b3d-e534-d99d-b70a9de71529 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=utf-8; format=flowed Thanks for the tip. =EF=BB=BF=0A=0AAaron=0A=0A=0AOn 03 Aug, 2010,at 11:51 = AM, Benjamin Black wrote:=0A=0A> On Mon, Aug 2, 2010 at 2:24 PM= , Aaron Morton wrote:=0A> >=0A> > 3.5) Yes load = balance restores things, I suggest you run it on one node at a=0A> > time.= Start with the node with the lowest load. Watching the progress by=0A> > = watching the streams via JMX or nodetool.=0A> >=0A>=0A> I recommend you _n= ever_ use nodetool loadbalance in production because=0A> it will _not_ res= ult in balanced load. The correct process is manual=0A> calculation of tok= ens (the algorithm for RP is on the Operations wiki=0A> page) and nodetool= move.=0A>=0A>=0A> b=0A --Apple-Webmail-42--6890c29c-8b3d-e534-d99d-b70a9de71529 Content-Type: multipart/related; type="text/html"; boundary=Apple-Webmail-86--6890c29c-8b3d-e534-d99d-b70a9de71529 --Apple-Webmail-86--6890c29c-8b3d-e534-d99d-b70a9de71529 Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=ISO-8859-1;
Thanks for the tip.

Aaron


On 03 Aug, 20= 10,at 11:51 AM, Benjamin Black <b@b3k.us> wrote:

On Mon, Aug 2, 2010 at 2:2= 4 PM, Aaron Morton <aaron@thelastpickle.com> wrote:
=0A>
=0A= > 3.5) Yes load balance restores things, I suggest you run it on one no= de at a
=0A> time. Start with the node with the lowest load. Watchin= g the progress by
=0A> watching the streams via JMX or nodetool.
= =0A>
=0A
=0AI recommend you _never_ use nodetool loadbalance in p= roduction because
=0Ait will _not_ result in balanced load. The correc= t process is manual
=0Acalculation of tokens (the algorithm for RP is o= n the Operations wiki
=0Apage) and nodetool move.
=0A
=0A
=0Ab=
=0A
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