Return-Path: Delivered-To: apmail-hadoop-zookeeper-user-archive@minotaur.apache.org Received: (qmail 26579 invoked from network); 10 Nov 2009 00:55:54 -0000 Received: from hermes.apache.org (HELO mail.apache.org) (140.211.11.3) by minotaur.apache.org with SMTP; 10 Nov 2009 00:55:54 -0000 Received: (qmail 25962 invoked by uid 500); 10 Nov 2009 00:55:54 -0000 Delivered-To: apmail-hadoop-zookeeper-user-archive@hadoop.apache.org Received: (qmail 25931 invoked by uid 500); 10 Nov 2009 00:55:54 -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 25917 invoked by uid 99); 10 Nov 2009 00:55:53 -0000 Received: from athena.apache.org (HELO athena.apache.org) (140.211.11.136) by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 10 Nov 2009 00:55:53 +0000 X-ASF-Spam-Status: No, hits=-2.6 required=5.0 tests=AWL,BAYES_00 X-Spam-Check-By: apache.org Received-SPF: neutral (athena.apache.org: local policy) Received: from [216.145.54.173] (HELO mrout3.yahoo.com) (216.145.54.173) by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 10 Nov 2009 00:55:51 +0000 Received: from [10.73.135.250] (wifi-e-135-250.corp.yahoo.com [10.73.135.250]) by mrout3.yahoo.com (8.13.6/8.13.6/y.out) with ESMTP id nAA0stu9003935; Mon, 9 Nov 2009 16:54:56 -0800 (PST) Message-ID: <4AF8B9DF.50002@apache.org> Date: Mon, 09 Nov 2009 16:54:55 -0800 From: Patrick Hunt User-Agent: Thunderbird 2.0.0.23 (X11/20090817) MIME-Version: 1.0 To: zookeeper-user@hadoop.apache.org Subject: Re: ZK on EC2 References: In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit I'm really interested to know how ec2 compares wrt disk and network performance to what I've documented here under the "hardware" section: http://wiki.apache.org/hadoop/ZooKeeper/ServiceLatencyOverview#Hardware Is it possible for someone to compare the network and disk performance (scp, dd, md5sum, etc...) that I document in the wiki page on say, EC2 small/large nodes? I'd do it myself but I've not used ec2. If anyone could try these and report I'd appreciate it. Patrick Ted Dunning wrote: > Worked pretty well for me. We did extend all of our timeouts. The biggest > worry for us was timeouts on the client side. The ZK server side was no > problem in that respect. > > On Mon, Nov 9, 2009 at 4:20 PM, Jun Rao wrote: > >> Has anyone deployed ZK on EC2? What's the experience there? Are there more >> timeouts, lead re-election, etc? Thanks, >> >> Jun >> IBM Almaden Research Center >> K55/B1, 650 Harry Road, San Jose, CA 95120-6099 >> >> junrao@almaden.ibm.com > > > >