Return-Path: 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 67693DE92 for ; Wed, 26 Sep 2012 18:23:17 +0000 (UTC) Received: (qmail 41683 invoked by uid 500); 26 Sep 2012 18:23:12 -0000 Delivered-To: apmail-hadoop-hdfs-user-archive@hadoop.apache.org Received: (qmail 41557 invoked by uid 500); 26 Sep 2012 18:23:12 -0000 Mailing-List: contact user-help@hadoop.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: user@hadoop.apache.org Delivered-To: mailing list user@hadoop.apache.org Received: (qmail 41550 invoked by uid 99); 26 Sep 2012 18:23:12 -0000 Received: from nike.apache.org (HELO nike.apache.org) (192.87.106.230) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 26 Sep 2012 18:23:12 +0000 X-ASF-Spam-Status: No, hits=2.2 required=5.0 tests=FSL_RCVD_USER,HTML_MESSAGE,RCVD_IN_DNSWL_LOW,SPF_NEUTRAL X-Spam-Check-By: apache.org Received-SPF: neutral (nike.apache.org: local policy) Received: from [209.85.212.48] (HELO mail-vb0-f48.google.com) (209.85.212.48) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 26 Sep 2012 18:23:06 +0000 Received: by vbme21 with SMTP id e21so1215147vbm.35 for ; Wed, 26 Sep 2012 11:22:45 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type:x-gm-message-state; bh=FYSGOksI6fGrqbt+vquHhOUQk5X75bUBnf4nPOEiMTY=; b=B811oPkR5Ipod/JqfIq3BonImeEhi+Yapvc3ZaFTLg7N0Bwp4hDIbKdxfvw9OW+liN 4FBWYFzeY01BUEJV9hFpIP8AVY1NGd2WEcfklj0GTuYadh6Tww/feTE7N308hdCUrtWN FB8HUKynp65fGT8JwzJbHeprg7iq34j4nagFVNMdBjH/iJmAh8R1zXz4l3Xcwsr9y39a eKaikqQSJDOkPl0ouIngqDqnmnFWbhKtOJba2aiXZkbXcwPKFqVUhkIcHrJ3FhSmBz1h 6MjwutcAyBXHNPFfx5lNgcpFEgR1Ld3nHY+e3D5pT56MRGd4OhBozV8tAmSHjGaAySZl oM0g== MIME-Version: 1.0 Received: by 10.220.154.68 with SMTP id n4mr744197vcw.22.1348683765020; Wed, 26 Sep 2012 11:22:45 -0700 (PDT) Received: by 10.58.124.227 with HTTP; Wed, 26 Sep 2012 11:22:44 -0700 (PDT) In-Reply-To: References: Date: Wed, 26 Sep 2012 11:22:44 -0700 Message-ID: Subject: Re: namenode migration From: Robert Molina To: user@hadoop.apache.org Content-Type: multipart/alternative; boundary=f46d043be0beba767504ca9ee859 X-Gm-Message-State: ALoCoQkAXzYbKdJGL1hrF9B4n2YlwfV+GquM3hOBiFsqRI0FbTcnp2Qq3rYeFupYvl/GXSWpQZzz --f46d043be0beba767504ca9ee859 Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: quoted-printable Here's another link that may help: http://wiki.apache.org/hadoop/NameNodeFailover On Wed, Sep 26, 2012 at 11:14 AM, Serge Blazhiyevskyy < Serge.Blazhiyevskyy@nice.com> wrote: > This is common procedure for cases when you need to promote secondary nam= e > node to become the primary one. > > Here is the exact steps: > > http://askhadoop.blogspot.com/2011/12/mapreduce-filesystem-recovery.html > > > Basically, you need to have the latest filesystem checkpoint and that=92s= it. > > Straight forward! > > Serge > > > > > From: Visioner Sadak visioner.sadak@gmail.com>> > Reply-To: "user@hadoop.apache.org" < > user@hadoop.apache.org> > Date: Tuesday, September 25, 2012 11:58 PM > To: "user@hadoop.apache.org" < > user@hadoop.apache.org> > Subject: namenode migration > > Hello friends can anyone tell abt migrating namenode from one ip to > another wht kind of backups will i have to take for migrating to a totall= y > new server... > --f46d043be0beba767504ca9ee859 Content-Type: text/html; charset=windows-1252 Content-Transfer-Encoding: quoted-printable
Here's another link that may help:=A0


On Wed, S= ep 26, 2012 at 11:14 AM, Serge Blazhiyevskyy <Serge.Blazhiyevs= kyy@nice.com> wrote:
This is common procedure for cases when you = need to promote secondary name node to become the primary one.

Here is the exact steps:

http://askhadoop.blogspot.com/2011/12/mapreduce= -filesystem-recovery.html


Basically, you need to have the latest filesystem checkpoint and that=92s i= t.

Straight forward!

Serge




From: Visioner Sadak <vision= er.sadak@gmail.com<mailto:visioner.sadak@gmail.com>>
Reply-To: "user@hadoop.apach= e.org<mailto:user@hadoop.a= pache.org>" <user@= hadoop.apache.org<mailto:u= ser@hadoop.apache.org>>
Date: Tuesday, September 25, 2012 11:58 PM
To: "user@hadoop.apache.org<= /a><mailto:user@hadoop.apache.= org>" <user@hadoop= .apache.org<mailto:user@ha= doop.apache.org>>
Subject: namenode migration

Hello friends can anyone tell abt migrating namenode from one ip to another= wht kind of backups will i have to take for migrating to a totally new ser= ver...

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