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 5D2ED106A4 for ; Fri, 11 Oct 2013 06:58:34 +0000 (UTC) Received: (qmail 31072 invoked by uid 500); 11 Oct 2013 06:58:30 -0000 Delivered-To: apmail-hbase-user-archive@hbase.apache.org Received: (qmail 30776 invoked by uid 500); 11 Oct 2013 06:58:30 -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 30765 invoked by uid 99); 11 Oct 2013 06:58:29 -0000 Received: from athena.apache.org (HELO athena.apache.org) (140.211.11.136) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 11 Oct 2013 06:58:29 +0000 X-ASF-Spam-Status: No, hits=1.7 required=5.0 tests=FREEMAIL_ENVFROM_END_DIGIT,HTML_MESSAGE,RCVD_IN_DNSWL_LOW,SPF_PASS X-Spam-Check-By: apache.org Received-SPF: pass (athena.apache.org: domain of mohandes.zebeleh.67@gmail.com designates 209.85.217.179 as permitted sender) Received: from [209.85.217.179] (HELO mail-lb0-f179.google.com) (209.85.217.179) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 11 Oct 2013 06:58:24 +0000 Received: by mail-lb0-f179.google.com with SMTP id x18so2950566lbi.24 for ; Thu, 10 Oct 2013 23:58:03 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:date:message-id:subject:from:to:content-type; bh=xwL+grtJ6/UuD/bBWoj/5x5Qkl94IIdUqxqaT1pszpg=; b=sePQDwkXyVB74lo2LMM1xmaOdajcBNiFSVYWSgFh/AawqeqLd/XiSBnnTrbp7xEW9n VGgyE4CTMDjRpGN1v6grIT3uVcJJ6k+QlwAgSGGAEG1eArU+sAqmmqSxEkEoROW03/r5 hagbLsevxNS1fI6D4RLzo2+thozQnI8UV8q+k95ym565OtqoXdXXNNuLWY828bFRfX8T Zf9aMpug7ctXn3KdUKlJNh4WVNnwGrMeiq711ln6KnRAMPVYT/SzUOrhgQcLcrd8h8Ji hz70ejJAVcZMYcrBOSgrwujxXl6vvdLGcK71vJXIOQ2RO74Rsb7T5aBcBagb2q/Ojfq8 v3rg== MIME-Version: 1.0 X-Received: by 10.152.116.7 with SMTP id js7mr14938059lab.11.1381474683061; Thu, 10 Oct 2013 23:58:03 -0700 (PDT) Received: by 10.114.200.206 with HTTP; Thu, 10 Oct 2013 23:58:03 -0700 (PDT) Date: Fri, 11 Oct 2013 10:28:03 +0330 Message-ID: Subject: Why HBase reduce the size of data when writing to the disk From: Farrokh Shahriari To: user@hbase.apache.org, "cdh-user@cloudera.org" Content-Type: multipart/alternative; boundary=001a11c2672ac00bf504e871a3f4 X-Virus-Checked: Checked by ClamAV on apache.org --001a11c2672ac00bf504e871a3f4 Content-Type: text/plain; charset=ISO-8859-1 Hi, There is a record which size is 30KB on a txt file. When I've written 50,000 records into HBase table, the UI shows that about 400MB of disk is used (not 1,500,00 KB). I don't know why!!!!! Is this related to compaction or sth else. Tnx for your helping. Best Regards Mohandes Zebeleh --001a11c2672ac00bf504e871a3f4--