Return-Path: Delivered-To: apmail-hadoop-hdfs-dev-archive@minotaur.apache.org Received: (qmail 80687 invoked from network); 5 Apr 2010 19:09:17 -0000 Received: from unknown (HELO mail.apache.org) (140.211.11.3) by 140.211.11.9 with SMTP; 5 Apr 2010 19:09:17 -0000 Received: (qmail 98967 invoked by uid 500); 5 Apr 2010 19:09:17 -0000 Delivered-To: apmail-hadoop-hdfs-dev-archive@hadoop.apache.org Received: (qmail 98857 invoked by uid 500); 5 Apr 2010 19:09:16 -0000 Mailing-List: contact hdfs-dev-help@hadoop.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: hdfs-dev@hadoop.apache.org Delivered-To: mailing list hdfs-dev@hadoop.apache.org Received: (qmail 98849 invoked by uid 99); 5 Apr 2010 19:09:16 -0000 Received: from athena.apache.org (HELO athena.apache.org) (140.211.11.136) by apache.org (qpsmtpd/0.29) with ESMTP; Mon, 05 Apr 2010 19:09:16 +0000 X-ASF-Spam-Status: No, hits=1.0 required=10.0 tests=AWL,FREEMAIL_FROM,HTML_MESSAGE,RCVD_IN_DNSWL_NONE,SPF_PASS,T_TO_NO_BRKTS_FREEMAIL X-Spam-Check-By: apache.org Received-SPF: pass (athena.apache.org: domain of kuang.hairong@gmail.com designates 209.85.222.187 as permitted sender) Received: from [209.85.222.187] (HELO mail-pz0-f187.google.com) (209.85.222.187) by apache.org (qpsmtpd/0.29) with ESMTP; Mon, 05 Apr 2010 19:09:10 +0000 Received: by pzk17 with SMTP id 17so3315353pzk.5 for ; Mon, 05 Apr 2010 12:08:50 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:in-reply-to:references :date:received:message-id:subject:from:to:content-type; bh=FUhZ6n17mNo6xEUmv7wtQS7EhXaHDqGJWLXCa7boCbs=; b=WEdXvUGHBeWxLpdcI5JQN/Z7JCWx6ym4k6dK5GCSi1TlbGFacKOqwboX3PgmFGUWns pcPohVK19qhKtUk16mgcR8qYJ0ef94oVWQYtIXyJwT2PrF2pluFuDm0AhVpjchgeJRhx Q4F4jL4AqjJz0h1tNNsArOXbT6K1rcV0OFEiI= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; b=dcKTGsBMmX3t6zCWaUKuy1buPTkE5aWVare6kntSWqQyw6Ce5+WDQMp1Z09bCNny/J 5T1e3/cqaO9G8HaJPsBfnRBehRaSIvCotuWKhb7A/Yr3QyLucA8fuCjF3Uqg/7yCCQvK G/YKRC2XZuOT/bJ02eUsyY/o2PpbgKofinz20= MIME-Version: 1.0 Received: by 10.142.218.2 with HTTP; Mon, 5 Apr 2010 12:08:50 -0700 (PDT) In-Reply-To: <133230.52642.qm@web65514.mail.ac4.yahoo.com> References: <133230.52642.qm@web65514.mail.ac4.yahoo.com> Date: Mon, 5 Apr 2010 12:08:50 -0700 Received: by 10.143.27.3 with SMTP id e3mr2104853wfj.224.1270494530395; Mon, 05 Apr 2010 12:08:50 -0700 (PDT) Message-ID: Subject: Re: [VOTE] Commit hdfs-1024 to 0.20 branch From: Hairong Kuang To: hdfs-dev@hadoop.apache.org Content-Type: multipart/alternative; boundary=001636e0b1ba2c60a90483820fec --001636e0b1ba2c60a90483820fec Content-Type: text/plain; charset=ISO-8859-1 +1 Good catch! Hairong On Sat, Apr 3, 2010 at 12:55 PM, Andrew Purtell wrote: > +1 > > > On 4/2/10, Stack wrote: > > > Please on committing HDFS-1024 to the hadoop 0.20 branch. > > > > > > Background: > > > > > > HDFS-1024 fixes possible trashing of fsimage because > > > of failed copy from 2NN and NN. Ordinarily, possible > > > corruption of this proportion would merit commit w/o > > > need of a vote only Dhruba correctly notes that UNLESS > > > both NN and 2NN are upgraded, HDFS-1024 becomes an > > > incompatible change (the NN<->2NN communication will > > > fail always). IMO, this incompatible change can be > > > plastered over with a release note; e.g. > > > WARNING, you MUST update NN and 2NN when you go to > > > 0.20.3 hadoop. If you agree with me, please vote +1 > > > on commit. > > > > > > --001636e0b1ba2c60a90483820fec--