Return-Path: X-Original-To: apmail-hadoop-general-archive@minotaur.apache.org Delivered-To: apmail-hadoop-general-archive@minotaur.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id A82B6318C for ; Wed, 4 May 2011 23:20:11 +0000 (UTC) Received: (qmail 94612 invoked by uid 500); 4 May 2011 23:20:10 -0000 Delivered-To: apmail-hadoop-general-archive@hadoop.apache.org Received: (qmail 94549 invoked by uid 500); 4 May 2011 23:20:10 -0000 Mailing-List: contact general-help@hadoop.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: general@hadoop.apache.org Delivered-To: mailing list general@hadoop.apache.org Received: (qmail 94541 invoked by uid 99); 4 May 2011 23:20:10 -0000 Received: from nike.apache.org (HELO nike.apache.org) (192.87.106.230) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 04 May 2011 23:20:10 +0000 X-ASF-Spam-Status: No, hits=0.7 required=5.0 tests=RCVD_IN_DNSWL_NONE,SPF_NEUTRAL X-Spam-Check-By: apache.org Received-SPF: neutral (nike.apache.org: local policy) Received: from [216.145.54.171] (HELO mrout1.yahoo.com) (216.145.54.171) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 04 May 2011 23:20:02 +0000 Received: from battlerock-lm.corp.yahoo.com (battlerock-lm.corp.yahoo.com [10.72.123.81]) by mrout1.yahoo.com (8.14.4/8.14.4/y.out) with ESMTP id p44NJBcH003126 for ; Wed, 4 May 2011 16:19:11 -0700 (PDT) Content-Type: text/plain; charset=us-ascii Mime-Version: 1.0 (Apple Message framework v1084) Subject: Re: [VOTE] Release candidate 0.20.203.0-rc1 From: "Owen O'Malley" In-Reply-To: <450B3108-28FA-40B2-A7F3-28747B8D2863@linkedin.com> Date: Wed, 4 May 2011 16:19:11 -0700 Content-Transfer-Encoding: quoted-printable Message-Id: References: <450B3108-28FA-40B2-A7F3-28747B8D2863@linkedin.com> To: general@hadoop.apache.org X-Mailer: Apple Mail (2.1084) X-Virus-Checked: Checked by ClamAV on apache.org On May 4, 2011, at 1:17 PM, Allen Wittenauer wrote: > Am I misreading this, or are the MR protocols out of sync = between 0.20.203 and 0.21? It would also appear that this is marked = stable in 0.21. What is the user impact? The names of the protocols were changed, but the names of the protocols = aren't user-facing. The protocols themselves also changed, as with all = Hadoop major versions. (We need to switch to protobuf or something for = RPC to provide wire compatibility.)=20 -- Owen=