Return-Path: X-Original-To: apmail-hadoop-mapreduce-user-archive@minotaur.apache.org Delivered-To: apmail-hadoop-mapreduce-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 6E911DA59 for ; Tue, 12 Feb 2013 18:14:30 +0000 (UTC) Received: (qmail 8653 invoked by uid 500); 12 Feb 2013 18:14:25 -0000 Delivered-To: apmail-hadoop-mapreduce-user-archive@hadoop.apache.org Received: (qmail 8544 invoked by uid 500); 12 Feb 2013 18:14:25 -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 8537 invoked by uid 99); 12 Feb 2013 18:14:25 -0000 Received: from athena.apache.org (HELO athena.apache.org) (140.211.11.136) by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 12 Feb 2013 18:14:25 +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 rmolina@hortonworks.com designates 209.85.220.175 as permitted sender) Received: from [209.85.220.175] (HELO mail-vc0-f175.google.com) (209.85.220.175) by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 12 Feb 2013 18:14:18 +0000 Received: by mail-vc0-f175.google.com with SMTP id fw7so226712vcb.20 for ; Tue, 12 Feb 2013 10:13:57 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20120113; h=mime-version:x-received:in-reply-to:references:date:message-id :subject:from:to:content-type:x-gm-message-state; bh=qzpSRxCWgome5jMRe2GfTf/XqWNKPENTgtXhL6kKA28=; b=Jjr0PQeA3olka1PFr+u7Fl0GTglhjH6lOKeMAGaF0+Ns/dPLBl5FvpS8I5D60Rxs56 lUtJBQ2zEi4whALC/Q82JfLH+9Q8mYX+D2lmX33q/hN6yhzK8XZE2H47dNncw6fJPzKI z8AFMdLhKitNl0SsTJFpaMiqC4ELI9oI267jPM2c+uYSKTG6bvrLfOMtDcONAmmsJx+r g3aHyC4pq7kcoVU0YOfPg/jSIb17O7vgumQM9XkeLiw0IDigLee0yG2BOjGUIi+6J9jQ MKiydR+coBXTjIJU8IWlyn99svtopX8uOgepWx/rO+sYntYqij4BEbx1XOWyfOv3gWN5 R3xQ== MIME-Version: 1.0 X-Received: by 10.52.29.231 with SMTP id n7mr21752036vdh.103.1360692837683; Tue, 12 Feb 2013 10:13:57 -0800 (PST) Received: by 10.58.186.138 with HTTP; Tue, 12 Feb 2013 10:13:57 -0800 (PST) In-Reply-To: References: Date: Tue, 12 Feb 2013 10:13:57 -0800 Message-ID: Subject: Re: Decommissioning Nodes in Production Cluster. From: Robert Molina To: user@hadoop.apache.org Content-Type: multipart/alternative; boundary=20cf307c9fc23d12bd04d58afd4d X-Gm-Message-State: ALoCoQnb2ZFNT0H5dwWd6tbBEqoKAEZrOEcX1vYpYcn4goLb2RIx59gY/DCb0bJK12194L/PgIBw X-Virus-Checked: Checked by ClamAV on apache.org --20cf307c9fc23d12bd04d58afd4d Content-Type: text/plain; charset=ISO-8859-1 Hi Dhanasekaran, I believe you are trying to ask if it is recommended to use the decommissioning feature to remove datanodes from your cluster, the answer would be yes. As far as how to do it, there should be some information here http://wiki.apache.org/hadoop/FAQ that should help. Regards, Robert On Tue, Feb 12, 2013 at 3:50 AM, Dhanasekaran Anbalagan wrote: > Hi Guys, > > It's recommenced do with removing one the datanode in production cluster. > via Decommission the particular datanode. please guide me. > > -Dhanasekaran, > > Did I learn something today? If not, I wasted it. > --20cf307c9fc23d12bd04d58afd4d Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Hi=A0Dhanasekaran,=A0
I believe you are trying to ask if it is recommen= ded to use the decommissioning feature to remove datanodes from your cluste= r, the answer would be yes. =A0As far as how to do it, there should be some= information here=A0http://wi= ki.apache.org/hadoop/FAQ that should help. =A0

Regards,=A0
Robert

On Tue, Feb 12, 2013 at 3:50 AM, Dhanasekaran Anbalagan <bugcy0= 13@gmail.com> wrote:
Hi Guys,

It's=A0recommenced do with removing one the datanode in production clu= ster.
via Decommission the=A0particular=A0datanode. please guide me.
=A0
-Dhanasekaran,

Did I learn something today? I= f not, I wasted it.

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