Return-Path: X-Original-To: apmail-hadoop-common-user-archive@www.apache.org Delivered-To: apmail-hadoop-common-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 81FF818585 for ; Sat, 9 Jan 2016 03:17:47 +0000 (UTC) Received: (qmail 17201 invoked by uid 500); 9 Jan 2016 03:17:43 -0000 Delivered-To: apmail-hadoop-common-user-archive@hadoop.apache.org Received: (qmail 17084 invoked by uid 500); 9 Jan 2016 03:17:43 -0000 Mailing-List: contact user-help@hadoop.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Delivered-To: mailing list user@hadoop.apache.org Received: (qmail 17074 invoked by uid 99); 9 Jan 2016 03:17:43 -0000 Received: from Unknown (HELO spamd3-us-west.apache.org) (209.188.14.142) by apache.org (qpsmtpd/0.29) with ESMTP; Sat, 09 Jan 2016 03:17:43 +0000 Received: from localhost (localhost [127.0.0.1]) by spamd3-us-west.apache.org (ASF Mail Server at spamd3-us-west.apache.org) with ESMTP id A7A9E180474 for ; Sat, 9 Jan 2016 03:17:42 +0000 (UTC) X-Virus-Scanned: Debian amavisd-new at spamd3-us-west.apache.org X-Spam-Flag: NO X-Spam-Score: 2.979 X-Spam-Level: ** X-Spam-Status: No, score=2.979 tagged_above=-999 required=6.31 tests=[HTML_MESSAGE=3, RCVD_IN_MSPIKE_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01, SPF_PASS=-0.001] autolearn=disabled Received: from mx1-eu-west.apache.org ([10.40.0.8]) by localhost (spamd3-us-west.apache.org [10.40.0.10]) (amavisd-new, port 10024) with ESMTP id pb11W_gTrb-2 for ; Sat, 9 Jan 2016 03:17:41 +0000 (UTC) Received: from BAY004-OMC2S14.hotmail.com (bay004-omc2s14.hotmail.com [65.54.190.89]) by mx1-eu-west.apache.org (ASF Mail Server at mx1-eu-west.apache.org) with ESMTPS id C301C2059F for ; Sat, 9 Jan 2016 03:17:40 +0000 (UTC) Received: from BAY176-DS7 ([65.54.190.124]) by BAY004-OMC2S14.hotmail.com over TLS secured channel with Microsoft SMTPSVC(7.5.7601.23008); Fri, 8 Jan 2016 19:17:33 -0800 X-TMN: [KoTgtr5eQmQCUDlAE0VCKdSwBLRylEHrOYGKSbMwo9I=] X-Originating-Email: [yaoxiaohua@outlook.com] Message-ID: From: yaoxiaohua To: Subject: hadoop cluster expanding best practices? Date: Sat, 9 Jan 2016 11:17:20 +0800 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_00A3_01D14ACF.4ED0D690" X-Mailer: Microsoft Outlook 14.0 Thread-Index: AdFKjD5q57DCBEuoT/SNNUWdhhQcQQ== Content-Language: zh-cn X-OriginalArrivalTime: 09 Jan 2016 03:17:33.0807 (UTC) FILETIME=[4839A7F0:01D14A8C] ------=_NextPart_000_00A3_01D14ACF.4ED0D690 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Hi guys, Our hadoop cluster now has 60 nodes(58 datanodes), now we prepare to add 42 new datanodes machines. But we want to know whether we should add new datanode one by one, or batch, If we do batch , whether the online business will be affected ? could you share any experience for me , Thanks, such as best practices for expanding Hadoop cluster. Best Regards, Evan ------=_NextPart_000_00A3_01D14ACF.4ED0D690 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Hi = guys,

&= nbsp; Our hadoop cluster now has 60 = nodes(58 datanodes), now we prepare to add 42 new datanodes = machines.

&= nbsp; But we want to know whether we = should add new datanode one by one, or batch,

&= nbsp; If we do batch , whether the online = business will be affected ? could you share any experience for me = ,

&= nbsp; Thanks, such as best practices for = expanding Hadoop cluster.

Best = Regards,

Evan

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