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 9FB9D10700 for ; Fri, 20 Dec 2013 08:31:06 +0000 (UTC) Received: (qmail 53586 invoked by uid 500); 20 Dec 2013 08:31:03 -0000 Delivered-To: apmail-hbase-user-archive@hbase.apache.org Received: (qmail 53430 invoked by uid 500); 20 Dec 2013 08:31:03 -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 53409 invoked by uid 99); 20 Dec 2013 08:31:00 -0000 Received: from athena.apache.org (HELO athena.apache.org) (140.211.11.136) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 20 Dec 2013 08:31:00 +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 (athena.apache.org: domain of xiaotao.cs.nju@gmail.com designates 209.85.128.53 as permitted sender) Received: from [209.85.128.53] (HELO mail-qe0-f53.google.com) (209.85.128.53) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 20 Dec 2013 08:30:56 +0000 Received: by mail-qe0-f53.google.com with SMTP id nc12so2015332qeb.40 for ; Fri, 20 Dec 2013 00:30:36 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; bh=7vXv5imoP7fn/RbizAB3MAVsaB304jfbgUC10LE8Wl8=; b=SoxJLwoL5EbgRAMfFBhNN4/JoPUnupRT3KoqWk722Wi6TCxrFP7bg6Xno2+srol33b 38UPYdXGyyjrxQZTdK0kcNjmzEma2Y6Pl6OU/ZhIzINx0BXR2SPt/era1FRKXm0pJ7PV W3JyaDnffDAktfpTTkw3O2IZ1g6PT0XM1eADdTd7fLsCHBhuYl6p5LOfwjAzezjD7Rd4 nyWR5cn2Q9/MFX8QVPJpukP72b1YWDCgi6ffd/yzhv/YDyMLXnweYY0t96LZnAiGCpn1 5P+tXiNcxlC9ZIoXzjM7T0osVI9wbykZkcZETdYTetAqRolJ/WvOXmqLC8UPT/3ti9GC m1Rg== MIME-Version: 1.0 X-Received: by 10.49.110.202 with SMTP id ic10mr11529096qeb.18.1387528235814; Fri, 20 Dec 2013 00:30:35 -0800 (PST) Received: by 10.96.198.97 with HTTP; Fri, 20 Dec 2013 00:30:35 -0800 (PST) In-Reply-To: References: Date: Fri, 20 Dec 2013 16:30:35 +0800 Message-ID: Subject: =?GB2312?Q?Re=3A_=B4=F0=B8=B4=3A_Should_we_set_the_property_=22hbase=2Elocal=2E?= =?GB2312?Q?dir=22_to_a_list_of_directories_on_different_disks_to_spread_I?= =?GB2312?Q?=2FO=3F?= From: Tao Xiao To: user Content-Type: multipart/alternative; boundary=047d7bd76dfa9ca47804edf317e4 X-Virus-Checked: Checked by ClamAV on apache.org --047d7bd76dfa9ca47804edf317e4 Content-Type: text/plain; charset=GB2312 Content-Transfer-Encoding: quoted-printable Since "hbase.local.dir" specifes local directory, why doesn't it specify multiple directories on different disks to spread I/O, just as what "dfs.datanode.data.dir" does ? 2013/12/20 =D0=BB=C1=BC > Please take a look at "dfs.datanode.data.dir" in hdfs-site.xml. > P.S. "hbase.local.dir" supports one dir only, don't specify it with a > list:) > > Thanks, > ________________________________________ > =B7=A2=BC=FE=C8=CB: Tao Xiao [xiaotao.cs.nju@gmail.com] > =B7=A2=CB=CD=CA=B1=BC=E4: 2013=C4=EA12=D4=C220=C8=D5 15:11 > =CA=D5=BC=FE=C8=CB: user > =D6=F7=CC=E2: Should we set the property "hbase.local.dir" to a list of d= irectories > on different disks to spread I/O? > > Hi, > > To spread I/O on multiple disks of the HBase cluster, I set the > property "hbase.local.dir" in hbase-site.xml to a comma-separated list o= f > directories on different disks as follows: > > > hbase.local.dir > > > /storage/disk1/hbase.local.dir,/storage/disk2/hbase.local.dir,/sto= rage/disk3/hbase.local.dir > > > is it right ? > --047d7bd76dfa9ca47804edf317e4--