Return-Path: X-Original-To: apmail-cassandra-user-archive@www.apache.org Delivered-To: apmail-cassandra-user-archive@www.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id 04417E046 for ; Fri, 7 Dec 2012 07:32:20 +0000 (UTC) Received: (qmail 58326 invoked by uid 500); 7 Dec 2012 07:32:17 -0000 Delivered-To: apmail-cassandra-user-archive@cassandra.apache.org Received: (qmail 58143 invoked by uid 500); 7 Dec 2012 07:32:17 -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 58113 invoked by uid 99); 7 Dec 2012 07:32:16 -0000 Received: from athena.apache.org (HELO athena.apache.org) (140.211.11.136) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 07 Dec 2012 07:32:16 +0000 X-ASF-Spam-Status: No, hits=-0.7 required=5.0 tests=RCVD_IN_DNSWL_LOW,SPF_PASS X-Spam-Check-By: apache.org Received-SPF: pass (athena.apache.org: domain of srecon@yandex.ru designates 77.88.46.21 as permitted sender) Received: from [77.88.46.21] (HELO forward5.mail.yandex.net) (77.88.46.21) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 07 Dec 2012 07:32:08 +0000 Received: from web17d.yandex.ru (web17d.yandex.ru [77.88.47.162]) by forward5.mail.yandex.net (Yandex) with ESMTP id C17A01200DA2 for ; Fri, 7 Dec 2012 11:31:46 +0400 (MSK) Received: from 127.0.0.1 (localhost.localdomain [127.0.0.1]) by web17d.yandex.ru (Yandex) with ESMTP id 873EE58D0FF9; Fri, 7 Dec 2012 11:31:46 +0400 (MSK) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yandex.ru; s=mail; t=1354865506; bh=xEQZ1IW+nzxJvahINM1blSWVjZZ0wY2mN6g92mZHbi8=; h=From:To:In-Reply-To:References:Subject:Date; b=WtmgTCpYSo0YOC4W/v7jPUoREp91f9FJ/SWeVJ2uYUaKcpiRvkSbLd1SMStOTSjGY hyHXoHT7V2cbbDCljDpU7rtASXnjTZ/z/WW/EOFwlI9R24bF+GE6EVJ8lSylQxlbRc Hq0f8f3dC3fS/Vbuq/KwA8L3R4Hieitxi8vjPcO8= Received: from [91.241.12.31] ([91.241.12.31]) by web17d.yandex.ru with HTTP; Fri, 07 Dec 2012 11:31:46 +0400 From: Shamim To: "user@cassandra.apache.org" In-Reply-To: References: Subject: Re: Cassandra V/S Hadoop MIME-Version: 1.0 Message-Id: <394211354865506@web17d.yandex.ru> X-Mailer: Yamail [ http://yandex.ru ] 5.0 Date: Fri, 07 Dec 2012 11:31:46 +0400 Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset=koi8-r X-Virus-Checked: Checked by ClamAV on apache.org �Hello Yogesh, �Actualy you have missunderstand Hadoop. �Hadoop - it's framework for distributed computing, consist of two main module HDFS and Map Reduce. Hadoop HDFS is a distributed file system and Map reduce module can help you to parallel processing of large data sets (batch processing). �Cassandra - just a Data base as you metioned. You can use Hadoop with cassandra or Hbase. Hbase or Cassandra will be only data storage for you, Hadoop Map Reduce can help you to parallel process of your data through pig or hive. In our case - we are using Cassandra as our data storage and through Hadoop Map Reduce with Pig we analizing our data. For real time data analysis you can use Storm instead of Hadoop map reduce. Best regards ��Shamim � 06.12.2012, 21:35, "Yogesh Dhari" : > �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.. > > �Please put some light on both of these where Hadoop overtakes Cassandra an where Cassandra. > > �And in which use cases we go for any them. > > �Thanks & Regards > �Yogesh Kumar