Return-Path: 
 <user-return-15416-apmail-hadoop-hdfs-user-archive=hadoop.apache.org@hadoop.apache.org>
X-Original-To: apmail-hadoop-hdfs-user-archive@minotaur.apache.org
Delivered-To: apmail-hadoop-hdfs-user-archive@minotaur.apache.org
Received: from mail.apache.org (hermes.apache.org [140.211.11.3])
	by minotaur.apache.org (Postfix) with SMTP id 6C040115D6
	for <apmail-hadoop-hdfs-user-archive@minotaur.apache.org>;
 Mon, 19 May 2014 10:10:28 +0000 (UTC)
Received: (qmail 22997 invoked by uid 500); 19 May 2014 10:10:24 -0000
Delivered-To: apmail-hadoop-hdfs-user-archive@hadoop.apache.org
Received: (qmail 22865 invoked by uid 500); 19 May 2014 10:10:24 -0000
Mailing-List: contact user-help@hadoop.apache.org; run by ezmlm
Precedence: bulk
List-Help: <mailto:user-help@hadoop.apache.org>
List-Unsubscribe: <mailto:user-unsubscribe@hadoop.apache.org>
List-Post: <mailto:user@hadoop.apache.org>
List-Id: <user.hadoop.apache.org>
Reply-To: user@hadoop.apache.org
Delivered-To: mailing list user@hadoop.apache.org
Received: (qmail 22854 invoked by uid 99); 19 May 2014 10:10:24 -0000
Received: from nike.apache.org (HELO nike.apache.org) (192.87.106.230)
    by apache.org (qpsmtpd/0.29) with ESMTP; Mon, 19 May 2014 10:10:24 +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 justlooks@gmail.com designates
 209.85.216.176 as permitted sender)
Received: from [209.85.216.176] (HELO mail-qc0-f176.google.com)
 (209.85.216.176)
    by apache.org (qpsmtpd/0.29) with ESMTP; Mon, 19 May 2014 10:10:20 +0000
Received: by mail-qc0-f176.google.com with SMTP id r5so8624337qcx.35
        for <user@hadoop.apache.org>; Mon, 19 May 2014 03:09:56 -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=cXZluhuKLL2VmjbBAMb71diO2gzc4r6rGaZt7ZYg7v0=;
        b=TYpHX0MfqTvJrv6+k30IA20FzNggRDApNODXftE2gXAl7V8lVDFDMQqmWo9+GQDt/r
         PpN8h+dtqlJr+Akzj557iBtZH9bioo/qcsOrbED6lJ24G5Fy7tLPEWFZlx/704HprIeN
         xCS0rHnIDgw1wQVW0YCUJfi8uqS8hxdIQvVBFFumqBLPuhNpl9vrnvx9hc7n08yJH75H
         bqtgQaBTT5prs50YN6QdCer4InCCjchn6EjIt2sLR0Aj/oAuubJ3ajjws/CkAH8JoXBi
         A/3+xR/sy6VcAQgaW+IvH2rrPYrN2DEGf8dw7/3lpZFYZXwjEfwXy3/PyratjHhyCOcP
         4kpw==
MIME-Version: 1.0
X-Received: by 10.224.72.12 with SMTP id k12mr32596051qaj.81.1400494196820;
 Mon, 19 May 2014 03:09:56 -0700 (PDT)
Received: by 10.140.87.229 with HTTP; Mon, 19 May 2014 03:09:56 -0700 (PDT)
Date: Mon, 19 May 2014 18:09:56 +0800
Message-ID: 
 <CACeqxwTtx-AvAgoOr-TyxpWv=6q+iu6i4ZfTmnG9X25sQzOZRw@mail.gmail.com>
Subject: about hadoop upgrade
From: ch huang <justlooks@gmail.com>
To: user@hadoop.apache.org
Content-Type: multipart/alternative; boundary=047d7bea2f021c922f04f9bdf737
X-Virus-Checked: Checked by ClamAV on apache.org

--047d7bea2f021c922f04f9bdf737
Content-Type: text/plain; charset=UTF-8

hi,maillist:
        i want to upgrade my cluster ,in doc,one of step is backup
namenode dfs.namenode.name.dir
directory,i have 2 directories defined in hdfs-site.xml,should i backup
them all ,or just one of them?

    <property>
        <name>dfs.namenode.name.dir</name>
        <value>file:///data/namespace/1,file:///data/namespace/2</value>
    </property>

--047d7bea2f021c922f04f9bdf737
Content-Type: text/html; charset=UTF-8
Content-Transfer-Encoding: quoted-printable

<div>hi,maillist:</div>
<div>=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 i want to upgrade my cluste=
r ,in doc,one of step is backup namenode <span style=3D"TEXT-ALIGN:left;TEX=
T-TRANSFORM:none;BACKGROUND-COLOR:rgb(180,214,186);TEXT-INDENT:0px;DISPLAY:=
inline!important;FONT:13px/18px monospace,serif;WHITE-SPACE:normal;FLOAT:no=
ne;LETTER-SPACING:normal;COLOR:rgb(0,0,0);WORD-SPACING:0px">dfs.namenode.na=
me.dir directory,i have 2 directories defined in hdfs-site.xml,should i bac=
kup them all ,or just one of them?</span></div>

<div><span style=3D"TEXT-ALIGN:left;TEXT-TRANSFORM:none;BACKGROUND-COLOR:rg=
b(180,214,186);TEXT-INDENT:0px;DISPLAY:inline!important;FONT:13px/18px mono=
space,serif;WHITE-SPACE:normal;FLOAT:none;LETTER-SPACING:normal;COLOR:rgb(0=
,0,0);WORD-SPACING:0px"></span>=C2=A0</div>

<div><span style=3D"TEXT-ALIGN:left;TEXT-TRANSFORM:none;BACKGROUND-COLOR:rg=
b(180,214,186);TEXT-INDENT:0px;DISPLAY:inline!important;FONT:13px/18px mono=
space,serif;WHITE-SPACE:normal;FLOAT:none;LETTER-SPACING:normal;COLOR:rgb(0=
,0,0);WORD-SPACING:0px">=C2=A0=C2=A0=C2=A0 &lt;property&gt;<br>
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 &lt;name&gt;dfs.namenode.name.di=
r&lt;/name&gt;<br>=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 &lt;value&gt;f=
ile:///data/namespace/1,file:///data/namespace/2&lt;/value&gt;<br>=C2=A0=C2=
=A0=C2=A0 &lt;/property&gt;<br></span></div>

--047d7bea2f021c922f04f9bdf737--