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 7619E7FDB for ; Thu, 1 Dec 2011 22:22:43 +0000 (UTC) Received: (qmail 85783 invoked by uid 500); 1 Dec 2011 22:22:41 -0000 Delivered-To: apmail-hbase-user-archive@hbase.apache.org Received: (qmail 85754 invoked by uid 500); 1 Dec 2011 22:22:41 -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 85746 invoked by uid 99); 1 Dec 2011 22:22:41 -0000 Received: from nike.apache.org (HELO nike.apache.org) (192.87.106.230) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 01 Dec 2011 22:22:41 +0000 X-ASF-Spam-Status: No, hits=-0.7 required=5.0 tests=FREEMAIL_FROM,RCVD_IN_DNSWL_LOW,SPF_PASS X-Spam-Check-By: apache.org Received-SPF: pass (nike.apache.org: domain of mohitanchlia@gmail.com designates 209.85.210.41 as permitted sender) Received: from [209.85.210.41] (HELO mail-pz0-f41.google.com) (209.85.210.41) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 01 Dec 2011 22:22:33 +0000 Received: by daek6 with SMTP id k6so1155120dae.14 for ; Thu, 01 Dec 2011 14:22:12 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=mime-version:date:message-id:subject:from:to:content-type; bh=7v0zfgyvkzB3YJjjTqQGchKG5L/g5tKe1mTpaiouXFw=; b=HQznWpde2v3e1VocjukJGra9Wwj/zHEXERsgAWcv5gRe/FpJ2YDRYSEeQzxolZXlLG p1OMIFE3BNzWFxWDntLYbCaJO4w2AQ6ue62pO2DKZZVNNEuxfHVyESmYyN5vCS9He3qb ARDDJGPy4Cqz7GpbBq/Tfd+eA61VPXGOaqF7I= MIME-Version: 1.0 Received: by 10.68.25.39 with SMTP id z7mr8231163pbf.125.1322778132371; Thu, 01 Dec 2011 14:22:12 -0800 (PST) Received: by 10.68.191.169 with HTTP; Thu, 1 Dec 2011 14:22:12 -0800 (PST) Date: Thu, 1 Dec 2011 14:22:12 -0800 Message-ID: Subject: Atomicity questions From: Mohit Anchlia To: user@hbase.apache.org Content-Type: text/plain; charset=ISO-8859-1 X-Virus-Checked: Checked by ClamAV on apache.org I have some questions about ACID after reading this page, http://hbase.apache.org/acid-semantics.html - Atomicity point 5 : row must either be "a=1,b=1,c=1" or "a=2,b=2,c=2" and must not be something like "a=1,b=2,c=1". How is this internally handled in hbase such that above is possible?