Return-Path: Delivered-To: apmail-hadoop-hdfs-user-archive@minotaur.apache.org Received: (qmail 12874 invoked from network); 16 Mar 2011 14:18:27 -0000 Received: from hermes.apache.org (HELO mail.apache.org) (140.211.11.3) by minotaur.apache.org with SMTP; 16 Mar 2011 14:18:27 -0000 Received: (qmail 76115 invoked by uid 500); 16 Mar 2011 14:18:27 -0000 Delivered-To: apmail-hadoop-hdfs-user-archive@hadoop.apache.org Received: (qmail 76043 invoked by uid 500); 16 Mar 2011 14:18:26 -0000 Mailing-List: contact hdfs-user-help@hadoop.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: hdfs-user@hadoop.apache.org Delivered-To: mailing list hdfs-user@hadoop.apache.org Received: (qmail 76035 invoked by uid 99); 16 Mar 2011 14:18:26 -0000 Received: from nike.apache.org (HELO nike.apache.org) (192.87.106.230) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 16 Mar 2011 14:18:26 +0000 X-ASF-Spam-Status: No, hits=2.9 required=5.0 tests=HTML_MESSAGE,RCVD_IN_DNSWL_NONE,SPF_NEUTRAL X-Spam-Check-By: apache.org Received-SPF: neutral (nike.apache.org: local policy) Received: from [209.85.220.176] (HELO mail-vx0-f176.google.com) (209.85.220.176) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 16 Mar 2011 14:18:19 +0000 Received: by vxi40 with SMTP id 40so2076561vxi.35 for ; Wed, 16 Mar 2011 07:17:58 -0700 (PDT) MIME-Version: 1.0 Received: by 10.52.175.137 with SMTP id ca9mr69027vdc.99.1300285077075; Wed, 16 Mar 2011 07:17:57 -0700 (PDT) Received: by 10.52.167.100 with HTTP; Wed, 16 Mar 2011 07:17:57 -0700 (PDT) Date: Wed, 16 Mar 2011 16:17:57 +0200 Message-ID: Subject: Changing a Namenode server From: Lior Schachter To: hdfs-user@hadoop.apache.org Content-Type: multipart/alternative; boundary=bcaec50fe0cd2038e9049e9a36fe X-Virus-Checked: Checked by ClamAV on apache.org --bcaec50fe0cd2038e9049e9a36fe Content-Type: text/plain; charset=ISO-8859-1 Hi, We have been using hadoop/HDSF for some while and we want to upgrade the namenode server to a new (and stronger) machine. Can you please advise on the correct way to do this while minimizing system downtime and without losing any data. Thanks, Lior --bcaec50fe0cd2038e9049e9a36fe Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable
Hi,

We have been using hadoop/HDSF for some while and we= want to upgrade the namenode server to a new (and stronger) machine.

Can you please advise on the correct way to do this = while minimizing system downtime =A0and without losing any data.

=A0

Thanks,

Lior


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