Return-Path: Delivered-To: apmail-hadoop-common-dev-archive@www.apache.org Received: (qmail 76525 invoked from network); 27 Oct 2010 22:32:54 -0000 Received: from unknown (HELO mail.apache.org) (140.211.11.3) by 140.211.11.9 with SMTP; 27 Oct 2010 22:32:54 -0000 Received: (qmail 59656 invoked by uid 500); 27 Oct 2010 22:32:53 -0000 Delivered-To: apmail-hadoop-common-dev-archive@hadoop.apache.org Received: (qmail 59588 invoked by uid 500); 27 Oct 2010 22:32:53 -0000 Mailing-List: contact common-dev-help@hadoop.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: common-dev@hadoop.apache.org Delivered-To: mailing list common-dev@hadoop.apache.org Received: (qmail 59580 invoked by uid 99); 27 Oct 2010 22:32:53 -0000 Received: from nike.apache.org (HELO nike.apache.org) (192.87.106.230) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 27 Oct 2010 22:32:53 +0000 X-ASF-Spam-Status: No, hits=-2.3 required=10.0 tests=RCVD_IN_DNSWL_MED,SPF_PASS X-Spam-Check-By: apache.org Received-SPF: pass (nike.apache.org: domain of awittenauer@linkedin.com designates 69.28.149.25 as permitted sender) Received: from [69.28.149.25] (HELO esv4-mav03.corp.linkedin.com) (69.28.149.25) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 27 Oct 2010 22:32:47 +0000 DomainKey-Signature: s=prod; d=linkedin.com; c=nofws; q=dns; h=X-IronPort-AV:Received:From:To:Subject:Thread-Topic: Thread-Index:Date:Message-ID:References:In-Reply-To: Accept-Language:Content-Language:X-MS-Has-Attach: X-MS-TNEF-Correlator:x-originating-ip:Content-Type: Content-ID:Content-Transfer-Encoding:MIME-Version; b=sW57A4GtOFSI1PgsNnET6eBF9bYTXSH0xtZGfAYatNJggeWPo66jWDLT pmEtJ4pniBWl+j/UaVdNybZKOmfy81KxMQrjmiuabbrOhGJ0wa/Aq5u1L w6t3H59PphrND2y; DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=linkedin.com; i=awittenauer@linkedin.com; q=dns/txt; s=proddkim; t=1288218767; x=1319754767; h=from:sender:reply-to:subject:date:message-id:to:cc: mime-version:content-transfer-encoding:content-id: content-description:resent-date:resent-from:resent-sender: resent-to:resent-cc:resent-message-id:in-reply-to: references:list-id:list-help:list-unsubscribe: list-subscribe:list-post:list-owner:list-archive; z=From:=20Allen=20Wittenauer=20 |Subject:=20Re:=20Multi-Master=20Hadoop=20Configuration |Date:=20Wed,=2027=20Oct=202010=2022:32:25=20+0000 |Message-ID:=20<3477C907-514F-4F76-8DFC-0F819C7FEDDF@link edin.com>|To:=20""=20|MIME-Version:=201.0 |Content-Transfer-Encoding:=20quoted-printable |Content-ID:=20<55981B0A58E810498708537024CDA5CB@linkedin .com>|In-Reply-To:=20<1853779061.305079.1288218509357.Jav aMail.root@mail2.gatech.edu>|References:=20<1853779061.30 5079.1288218509357.JavaMail.root@mail2.gatech.edu>; bh=ywDBB9bVWeAjUEfWqvcphfiifbI/Ad+ENQRK5cIOia4=; b=FYbfvTuJoB3LC7qvnQf1WSbl7bPTGRX9LyVVFkE732v3+gFqBSL4VWgT x6BMe7NfpB2s+/IWTw9hRU/4WRIRYpyluPrs2uxLze5BMWhS9i5lrVFEk +EJ9D+/Xy61thO6; X-IronPort-AV: E=Sophos;i="4.58,248,1286175600"; d="scan'208";a="16186670" Received: from ESV4-EXC01.linkedin.biz ([fe80::d7c:dc04:aea1:97d7]) by esv4-cas02.linkedin.biz ([172.18.46.142]) with mapi id 14.01.0218.012; Wed, 27 Oct 2010 15:32:26 -0700 From: Allen Wittenauer To: "" Subject: Re: Multi-Master Hadoop Configuration Thread-Topic: Multi-Master Hadoop Configuration Thread-Index: AQHLdiHNq+yeBnkQq0OXIMapCIrec5NVz/YAgAAFroCAAAEZgA== Date: Wed, 27 Oct 2010 22:32:25 +0000 Message-ID: <3477C907-514F-4F76-8DFC-0F819C7FEDDF@linkedin.com> References: <1853779061.305079.1288218509357.JavaMail.root@mail2.gatech.edu> In-Reply-To: <1853779061.305079.1288218509357.JavaMail.root@mail2.gatech.edu> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [172.18.46.247] Content-Type: text/plain; charset="us-ascii" Content-ID: <55981B0A58E810498708537024CDA5CB@linkedin.com> Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-Virus-Checked: Checked by ClamAV on apache.org On Oct 27, 2010, at 3:28 PM, Wang, Chengwei wrote: > Thanks for pointing it out!=20 >=20 > Because it did not mentioned how may masters in the practice of 4000 node= s, is there only one master managing 4000 slaves? Hadoop only supports one master, so yes. [At least until the AvatarNode gets checked into trunk... altho it might b= e there now.]