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 E26891047D for ; Thu, 16 Jan 2014 06:58:21 +0000 (UTC) Received: (qmail 81505 invoked by uid 500); 16 Jan 2014 06:58:18 -0000 Delivered-To: apmail-hbase-user-archive@hbase.apache.org Received: (qmail 80979 invoked by uid 500); 16 Jan 2014 06:58:17 -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 80221 invoked by uid 99); 16 Jan 2014 06:58:15 -0000 Received: from nike.apache.org (HELO nike.apache.org) (192.87.106.230) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 16 Jan 2014 06:58:15 +0000 X-ASF-Spam-Status: No, hits=1.5 required=5.0 tests=HTML_MESSAGE,RCVD_IN_DNSWL_LOW,SPF_PASS X-Spam-Check-By: apache.org Received-SPF: pass (nike.apache.org: domain of ramon@appannie.com designates 209.85.215.41 as permitted sender) Received: from [209.85.215.41] (HELO mail-la0-f41.google.com) (209.85.215.41) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 16 Jan 2014 06:58:08 +0000 Received: by mail-la0-f41.google.com with SMTP id mc6so2236157lab.28 for ; Wed, 15 Jan 2014 22:57:47 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:date:message-id:subject:from:to :content-type; bh=lqhTl59HdQgIueU0NrLn9Y+j3WwMKxvwkPt8C16nZyM=; b=gmA84fYlT0VMCcBT6PoxxSlSVedzfa2/AOQ4lBu+JQEzcVC6qUKCHsz09c614QzFen nxLkrsGwDesq1RfKL+OAVtjwZ+9FEEDsU6qtkhvw2qzsL3eoZOQl9tr+KT5JpYPtAoBh 2IsQa0xoKCk+Sp+bhswf0oI4/KME9iZ2eFx6RYQSni3IZBtM+oc5dgMokE6uZU4RJ4Yg lLwdx6cz8zodXWqVMCIOmki473onmLxmnuNa3WZb75daxFuvrMnoSHJu65IuyzmpU5ti IwHNudmnaShc51F+eoj4bw3GOSkHr4S/FxW574PRR3eyzEa++azzfWHmxpjFg8n2cjWa QAOw== X-Gm-Message-State: ALoCoQlbFni8CYpOI6DegS+KYelyq04QGDrACH4bqYvMVNZjwJXLWQcaRqkHK5HFVMRQm9Szch2a MIME-Version: 1.0 X-Received: by 10.152.23.39 with SMTP id j7mr4130161laf.28.1389855467812; Wed, 15 Jan 2014 22:57:47 -0800 (PST) Received: by 10.115.4.38 with HTTP; Wed, 15 Jan 2014 22:57:47 -0800 (PST) Date: Thu, 16 Jan 2014 14:57:47 +0800 Message-ID: Subject: How to shrink HBase region size? From: Ramon Wang To: user@hbase.apache.org Content-Type: multipart/alternative; boundary=089e0158ca0472c6ce04f010f15a X-Virus-Checked: Checked by ClamAV on apache.org --089e0158ca0472c6ce04f010f15a Content-Type: text/plain; charset=ISO-8859-1 Hi All I'm wondering is there a simple way we can decrease the number of regions for a table? We are using HBase 0.94.6-cdh4.4.0, one of our table has more than 100 regions, following is some information of the table: SPLIT_POLICY => 'org.apache.hadoop.hbase.regionserver.ConstantSizeRegionSplitPolicy', MAX_FILESIZE => '21474836480', I hope i could increase MAX_FILESIZE to some bigger value before, but we already have data in that table, so any ideas? Thanks. Cheers Ramon --089e0158ca0472c6ce04f010f15a--