Return-Path: Delivered-To: apmail-cassandra-user-archive@www.apache.org Received: (qmail 53410 invoked from network); 10 Jun 2010 13:50:39 -0000 Received: from unknown (HELO mail.apache.org) (140.211.11.3) by 140.211.11.9 with SMTP; 10 Jun 2010 13:50:39 -0000 Received: (qmail 76067 invoked by uid 500); 10 Jun 2010 13:50:37 -0000 Delivered-To: apmail-cassandra-user-archive@cassandra.apache.org Received: (qmail 76048 invoked by uid 500); 10 Jun 2010 13:50:37 -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 76040 invoked by uid 99); 10 Jun 2010 13:50:37 -0000 Received: from athena.apache.org (HELO athena.apache.org) (140.211.11.136) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 10 Jun 2010 13:50:37 +0000 X-ASF-Spam-Status: No, hits=4.4 required=10.0 tests=FREEMAIL_ENVFROM_END_DIGIT,FREEMAIL_FROM,HTML_MESSAGE,RCVD_IN_DNSWL_NONE,SPF_PASS,T_TO_NO_BRKTS_FREEMAIL X-Spam-Check-By: apache.org Received-SPF: pass (athena.apache.org: domain of hive13@gmail.com designates 209.85.212.172 as permitted sender) Received: from [209.85.212.172] (HELO mail-px0-f172.google.com) (209.85.212.172) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 10 Jun 2010 13:50:31 +0000 Received: by pxi15 with SMTP id 15so410858pxi.31 for ; Thu, 10 Jun 2010 06:50:11 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:received:date:message-id :subject:from:to:content-type; bh=78MnRtqgBYtOMt43G1L4VcYOOErAsOS8RuyEc92k47k=; b=LPIkiXhwrpnHEuMEcZiNdTwTbDk1pxPdeBugPZ/jUhJDDBSEWyC9uecPsxDTzwQ2m+ S0INKttU4SbJyNBUl3xLeOY/Njp3X7zSbTEAFs/zUmiRoPc5z9YjKwum3qNaVznUvOHT O6g/I9yc/jiZJrHukQ4V7Mtpg5X39XPqE46Ck= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:date:message-id:subject:from:to:content-type; b=vKE3+SZdq6Q7inC086Ssv/v3DdN5O1YLq43qT6Jl7uNEsz4h5Kyi92fqZA3o+htg9B ATB12XZWC0FYhAu+uIVT/QqPs6VHuHccI+JF8PNC43h8VpZkjmjpkmdoce/8fYiHdoTd vXj5cWDbHGLF4LyHm7aBb7BTYLHA80Va779ko= MIME-Version: 1.0 Received: by 10.115.114.13 with SMTP id r13mr173031wam.102.1276177810872; Thu, 10 Jun 2010 06:50:10 -0700 (PDT) Received: by 10.114.36.5 with HTTP; Thu, 10 Jun 2010 06:50:10 -0700 (PDT) Date: Thu, 10 Jun 2010 21:50:10 +0800 Message-ID: Subject: Best way of adding new nodes From: hive13 Wong To: user@cassandra.apache.org Content-Type: multipart/alternative; boundary=0016e64c0b22165a3e0488ad4dd2 --0016e64c0b22165a3e0488ad4dd2 Content-Type: text/plain; charset=ISO-8859-1 Hi, guys The 2 ways of adding new nodes, when add with bootstrapping, since we've already got lots of data, often it will take many hours to complete the bootstrapping and probably affect the performance of existing nodes. But if we add without bootstrapping, the data load on the new node could be quite unbalanced. Is there a better way of adding a new node with less cost while more balanced? Maybe a steady approach at a cost of longer time while not affecting current nodes much. Thanks --0016e64c0b22165a3e0488ad4dd2 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Hi, guys

The 2 ways of adding new nodes, when add with b= ootstrapping, since we've already got lots of data, often it will take = many hours to complete the bootstrapping and probably affect the performanc= e of existing nodes. But if we add without bootstrapping, the data load on = the new node could be quite unbalanced.

Is there a better way of adding a new node with less co= st while more balanced? Maybe a steady approach at a cost of longer time wh= ile not affecting current nodes much.

Thanks=A0 --0016e64c0b22165a3e0488ad4dd2--