Return-Path: X-Original-To: apmail-hbase-user-archive@www.apache.org Delivered-To: apmail-hbase-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 7655EC1CC for ; Fri, 28 Jun 2013 05:38:11 +0000 (UTC) Received: (qmail 56446 invoked by uid 500); 28 Jun 2013 05:38:08 -0000 Delivered-To: apmail-hbase-user-archive@hbase.apache.org Received: (qmail 56104 invoked by uid 500); 28 Jun 2013 05:38:05 -0000 Mailing-List: contact user-help@hbase.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: user@hbase.apache.org Delivered-To: mailing list user@hbase.apache.org Received: (qmail 56095 invoked by uid 99); 28 Jun 2013 05:38:03 -0000 Received: from nike.apache.org (HELO nike.apache.org) (192.87.106.230) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 28 Jun 2013 05:38:03 +0000 X-ASF-Spam-Status: No, hits=-0.0 required=5.0 tests=RCVD_IN_DNSWL_NONE,SPF_PASS X-Spam-Check-By: apache.org Received-SPF: pass (nike.apache.org: domain of michael_segel@hotmail.com designates 65.55.111.103 as permitted sender) Received: from [65.55.111.103] (HELO blu0-omc2-s28.blu0.hotmail.com) (65.55.111.103) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 28 Jun 2013 05:37:55 +0000 Received: from BLU0-SMTP185 ([65.55.111.72]) by blu0-omc2-s28.blu0.hotmail.com with Microsoft SMTPSVC(6.0.3790.4675); Thu, 27 Jun 2013 22:37:34 -0700 X-EIP: [lXf3pIibt9Cpj6jUUbQ4peWrLW7K5z/e] X-Originating-Email: [michael_segel@hotmail.com] Message-ID: Received: from [192.168.0.101] ([173.15.87.37]) by BLU0-SMTP185.phx.gbl over TLS secured channel with Microsoft SMTPSVC(6.0.3790.4675); Thu, 27 Jun 2013 22:37:26 -0700 References: MIME-Version: 1.0 (1.0) In-Reply-To: Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit CC: "user@hbase.apache.org" X-Mailer: iPad Mail (10B329) From: Michel Segel Subject: Re: How many column families in one table ? Date: Fri, 28 Jun 2013 00:37:27 -0500 To: "user@hbase.apache.org" X-OriginalArrivalTime: 28 Jun 2013 05:37:32.0915 (UTC) FILETIME=[96611430:01CE73C1] X-Virus-Checked: Checked by ClamAV on apache.org Short answer... As few as possible. 14 CF doesn't make too much sense. Sent from a remote device. Please excuse any typos... Mike Segel On Jun 28, 2013, at 12:20 AM, Vimal Jain wrote: > Hi, > How many column families should be there in an hbase table ? Is there any > performance issue in read/write if we have more column families ? > I have designed one table with around 14 column families in it with each > having on average 6 qualifiers. > Is it a good design ? > > -- > Thanks and Regards, > Vimal Jain