From user-return-3436-apmail-hadoop-user-archive=hadoop.apache.org@hadoop.apache.org Thu Dec 6 18:05:23 2012 Return-Path: X-Original-To: apmail-hadoop-user-archive@minotaur.apache.org Delivered-To: apmail-hadoop-user-archive@minotaur.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id 8E12AD3D0 for ; Thu, 6 Dec 2012 18:05:23 +0000 (UTC) Received: (qmail 57859 invoked by uid 500); 6 Dec 2012 18:05:18 -0000 Delivered-To: apmail-hadoop-user-archive@hadoop.apache.org Received: (qmail 57676 invoked by uid 500); 6 Dec 2012 18:05:17 -0000 Mailing-List: contact user-help@hadoop.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: user@hadoop.apache.org Delivered-To: mailing list user@hadoop.apache.org Received: (qmail 57634 invoked by uid 99); 6 Dec 2012 18:05:17 -0000 Received: from nike.apache.org (HELO nike.apache.org) (192.87.106.230) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 06 Dec 2012 18:05:17 +0000 X-ASF-Spam-Status: No, hits=2.2 required=5.0 tests=HTML_IMAGE_ONLY_32,HTML_MESSAGE,SPF_PASS,T_REMOTE_IMAGE X-Spam-Check-By: apache.org Received-SPF: pass (nike.apache.org: domain of mlortiz@uci.cu designates 200.55.140.180 as permitted sender) Received: from [200.55.140.180] (HELO mx3.uci.cu) (200.55.140.180) by apache.org (qpsmtpd/0.29) with SMTP; Thu, 06 Dec 2012 18:05:11 +0000 Received: (qmail 8956 invoked by uid 507); 6 Dec 2012 18:04:43 -0000 Received: from 10.0.0.188 by ns3.uci.cu (envelope-from , uid 501) with qmail-scanner-2.01st (avp: 5.0.2.0. spamassassin: 3.0.6. perlscan: 2.01st. Clear:RC:1(10.0.0.188):. Processed in 0.834207 secs); 06 Dec 2012 18:04:43 -0000 Received: from unknown (HELO ucimail5.uci.cu) (10.0.0.188) by 0 with SMTP; 6 Dec 2012 18:04:42 -0000 Received: from localhost (localhost.localdomain [127.0.0.1]) by ucimail5.uci.cu (Postfix) with ESMTP id B86E623401D for ; Thu, 6 Dec 2012 13:04:42 -0500 (EST) X-Virus-Scanned: amavisd-new at uci.cu Received: from ucimail5.uci.cu ([127.0.0.1]) by localhost (ucimail5.uci.cu [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id vlvRda8ZRjPM for ; Thu, 6 Dec 2012 13:04:41 -0500 (EST) Received: by ucimail5.uci.cu (Postfix, from userid 101) id CC17E234019; Thu, 6 Dec 2012 13:04:41 -0500 (EST) Received: from [10.8.46.124] (unknown [10.8.46.124]) (Authenticated sender: mlortiz@uci.cu) by ucimail5.uci.cu (Postfix) with ESMTPSA id C039C234017; Thu, 6 Dec 2012 13:04:41 -0500 (EST) Message-ID: <50C0DE41.7000106@uci.cu> Date: Thu, 06 Dec 2012 13:04:49 -0500 From: Marcos Ortiz User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:16.0) Gecko/20121028 Thunderbird/16.0.2 MIME-Version: 1.0 To: yogesh dhari CC: user@hadoop.apache.org Subject: Re: Hadoop V/S Cassandra References: In-Reply-To: Content-Type: multipart/alternative; boundary="------------020107060808000200000605" X-Virus-Checked: Checked by ClamAV on apache.org This is a multi-part message in MIME format. --------------020107060808000200000605 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 8bit On 12/06/2012 11:55 AM, yogesh dhari wrote: > Hi all, > > Hadoop have different file system(HDFS) and Cassandra have different > file system(CFS). > > As Hadoop have great Eco-System (Hive{Dataware House}, Hbase{Data > Base} n etc..) and Cassandra(Database) it self providing its own file > system > > Although we can run Hadoop's Ecosystem on Cassandra (If I am right ? > {like pig and hive}) > > Hadoop have single point of Failure but Cassandra doesn't.. There are two projects in Hadoop working to avoid SPOF called HDFS HA and HDFS Federation. There is a new branch called YARN which include all this. > > Please put some light on both of these where Hadoop overtakes > Cassandra an where Cassandra. I think a more fair comparison is with HBase, not with Hadoop. Look here http://horicky.blogspot.com/2010/10/bigtable-model-with-cassandra-and-hbase.html > > And in which use cases we go for any them. > > > Thanks & Regards > Yogesh Kumar > > > > -- Marcos Luis OrtÝz Valmaseda about.me/marcosortiz @marcosluis2186 10mo. ANIVERSARIO DE LA CREACION DE LA UNIVERSIDAD DE LAS CIENCIAS INFORMATICAS... CONECTADOS AL FUTURO, CONECTADOS A LA REVOLUCION http://www.uci.cu http://www.facebook.com/universidad.uci http://www.flickr.com/photos/universidad_uci --------------020107060808000200000605 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit
On 12/06/2012 11:55 AM, yogesh dhari wrote:
Hi all,

Hadoop have different file system(HDFS) and Cassandra have different file system(CFS).

As Hadoop have great Eco-System (Hive{Dataware House}, Hbase{Data Base} n etc..) and Cassandra(Database) it self providing its own file system

Although  we can run Hadoop's Ecosystem on Cassandra (If I am right ? {like pig and hive})

Hadoop have single point of Failure but Cassandra doesn't..
There are two projects in Hadoop working to avoid SPOF called HDFS HA and HDFS Federation.
There is a new branch called YARN which include all this.


Please put some light on both of these where Hadoop overtakes Cassandra an where Cassandra.
I think a more fair comparison is with HBase, not with Hadoop.
Look here
http://horicky.blogspot.com/2010/10/bigtable-model-with-cassandra-and-hbase.html

And in which use cases we go for any them.


Thanks & Regards
Yogesh Kumar




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