Return-Path: Delivered-To: apmail-hadoop-zookeeper-user-archive@minotaur.apache.org Received: (qmail 63207 invoked from network); 8 Mar 2010 02:15:22 -0000 Received: from unknown (HELO mail.apache.org) (140.211.11.3) by 140.211.11.9 with SMTP; 8 Mar 2010 02:15:22 -0000 Received: (qmail 83511 invoked by uid 500); 8 Mar 2010 02:15:00 -0000 Delivered-To: apmail-hadoop-zookeeper-user-archive@hadoop.apache.org Received: (qmail 83489 invoked by uid 500); 8 Mar 2010 02:15:00 -0000 Mailing-List: contact zookeeper-user-help@hadoop.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: zookeeper-user@hadoop.apache.org Delivered-To: mailing list zookeeper-user@hadoop.apache.org Received: (qmail 83481 invoked by uid 99); 8 Mar 2010 02:15:00 -0000 Received: from athena.apache.org (HELO athena.apache.org) (140.211.11.136) by apache.org (qpsmtpd/0.29) with ESMTP; Mon, 08 Mar 2010 02:15:00 +0000 X-ASF-Spam-Status: No, hits=0.0 required=10.0 tests=FREEMAIL_FROM,RCVD_IN_DNSWL_NONE,SPF_PASS X-Spam-Check-By: apache.org Received-SPF: pass (athena.apache.org: domain of ted.dunning@gmail.com designates 209.85.160.48 as permitted sender) Received: from [209.85.160.48] (HELO mail-pw0-f48.google.com) (209.85.160.48) by apache.org (qpsmtpd/0.29) with ESMTP; Mon, 08 Mar 2010 02:14:59 +0000 Received: by pwi6 with SMTP id 6so3250017pwi.35 for ; Sun, 07 Mar 2010 18:14:38 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:message-id:from:to :in-reply-to:content-type:content-transfer-encoding:x-mailer :mime-version:subject:date:references; bh=MWCwYUlqgCB7IKpKut2fBfZ3/Vg5g5se4kjEgEo6Dl8=; b=ppluyRCNrvIFs2C4mv+QV66EcNTmiLPd/6k5RQKjAz1jJK4E0DM9Nz7vcR2ZarEDHg BDJgAxuhyNi0isrTZx5bNGz1Up7UdgKeLDE9yfdhSgXqpocJixrA5s1MTpgVuPucwhcA zN2zt9c1uMnnB4WKF8mZ6IbkXCgCceUWKJUK8= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:from:to:in-reply-to:content-type :content-transfer-encoding:x-mailer:mime-version:subject:date :references; b=csascGWKDeNICbF9b8S1Ul7hDXVWjj6mi7pR4ilckhRVcoWcnpTCpCNjP6XSg9yRz8 kbgzM1aLdUBnCBF/3E1e7AFuVOEB9LNfbhCaX1GSCUVZH63ITqdcSpPS81s0I523fEfm BObH24r/5eKCwWZy3V9o76M1oMXqZvE5eww/0= Received: by 10.114.2.24 with SMTP id 24mr2854957wab.70.1268014463059; Sun, 07 Mar 2010 18:14:23 -0800 (PST) Received: from [10.101.158.4] ([166.205.139.118]) by mx.google.com with ESMTPS id 23sm4300126pzk.14.2010.03.07.18.14.21 (version=TLSv1/SSLv3 cipher=RC4-MD5); Sun, 07 Mar 2010 18:14:22 -0800 (PST) Message-Id: From: Ted Dunning To: "zookeeper-user@hadoop.apache.org" In-Reply-To: Content-Type: text/plain; charset=us-ascii; format=flowed; delsp=yes Content-Transfer-Encoding: 7bit X-Mailer: iPhone Mail (7E18) Mime-Version: 1.0 (iPhone Mail 7E18) Subject: Re: Managing multi-site clusters with Zookeeper Date: Sun, 7 Mar 2010 18:14:11 -0800 References: If you can stand the latency for updates then zk should work well for you. It is unlikely that you will be able to better than zk does and still maintain correctness. Do note that you can, probalbly bias client to use a local server. That should make things more efficient. Sent from my iPhone On Mar 7, 2010, at 3:00 PM, Mahadev Konar wrote: >> The inter-site links are a nuisance. We have two data-centres with >> 100Mb >> links which I hope would be good enough for most uses, but we need >> a 3rd >> site - and currently that only has 2Mb links to the other sites. >> This might >> be a problem.