Return-Path: X-Original-To: apmail-hadoop-common-commits-archive@www.apache.org Delivered-To: apmail-hadoop-common-commits-archive@www.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id 934EB18FB7 for ; Wed, 20 Jan 2016 05:41:37 +0000 (UTC) Received: (qmail 28572 invoked by uid 500); 20 Jan 2016 05:41:37 -0000 Delivered-To: apmail-hadoop-common-commits-archive@hadoop.apache.org Received: (qmail 28503 invoked by uid 500); 20 Jan 2016 05:41:37 -0000 Mailing-List: contact common-commits-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-commits@hadoop.apache.org Received: (qmail 28494 invoked by uid 500); 20 Jan 2016 05:41:37 -0000 Delivered-To: apmail-hadoop-core-commits@hadoop.apache.org Received: (qmail 28491 invoked by uid 99); 20 Jan 2016 05:41:37 -0000 Received: from Unknown (HELO spamd2-us-west.apache.org) (209.188.14.142) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 20 Jan 2016 05:41:37 +0000 Received: from localhost (localhost [127.0.0.1]) by spamd2-us-west.apache.org (ASF Mail Server at spamd2-us-west.apache.org) with ESMTP id E93351A0A20 for ; Wed, 20 Jan 2016 05:41:36 +0000 (UTC) X-Virus-Scanned: Debian amavisd-new at spamd2-us-west.apache.org X-Spam-Flag: NO X-Spam-Score: 0.446 X-Spam-Level: X-Spam-Status: No, score=0.446 tagged_above=-999 required=6.31 tests=[KAM_LAZY_DOMAIN_SECURITY=1, RP_MATCHES_RCVD=-0.554] autolearn=disabled Received: from mx1-us-west.apache.org ([10.40.0.8]) by localhost (spamd2-us-west.apache.org [10.40.0.9]) (amavisd-new, port 10024) with ESMTP id 83CYyWsPS-Xo for ; Wed, 20 Jan 2016 05:41:36 +0000 (UTC) Received: from eos.apache.org (eos.apache.org [140.211.11.131]) by mx1-us-west.apache.org (ASF Mail Server at mx1-us-west.apache.org) with ESMTP id 41AD6212B4 for ; Wed, 20 Jan 2016 05:41:36 +0000 (UTC) Received: from eos.apache.org (localhost [127.0.0.1]) by eos.apache.org (Postfix) with ESMTP id 6D96ABB1; Wed, 20 Jan 2016 05:41:35 +0000 (UTC) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable From: Apache Wiki To: Apache Wiki Date: Wed, 20 Jan 2016 05:41:35 -0000 Message-ID: <20160120054135.11303.2783@eos.apache.org> Subject: =?utf-8?q?=5BHadoop_Wiki=5D_Update_of_=22NameNodeFailover=22_by_ArpitAgar?= =?utf-8?q?wal?= Auto-Submitted: auto-generated Dear Wiki user, You have subscribed to a wiki page or wiki category on "Hadoop Wiki" for ch= ange notification. The "NameNodeFailover" page has been changed by ArpitAgarwal: https://wiki.apache.org/hadoop/NameNodeFailover?action=3Ddiff&rev1=3D8&rev2= =3D9 Comment: Mark page as Outdated. + =3D Outdated =3D + '''The information on this wiki page is outdated and will be deleted soon= . [[https://hadoop.apache.org/docs/stable/hadoop-project-dist/hadoop-hdfs/H= DFSHighAvailabilityWithQJM.html|NameNode High-Availability]] is present in = 2.x.''' + = + ---- + = =3D=3D=3D Introduction =3D=3D=3D As of 0.20, Hadoop does not support automatic recovery in the case of a N= ameNode failure. This is a well known and recognized single point of failu= re in Hadoop. =20