Return-Path: X-Original-To: apmail-hadoop-hdfs-dev-archive@minotaur.apache.org Delivered-To: apmail-hadoop-hdfs-dev-archive@minotaur.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id 945F3105B9 for ; Tue, 20 Oct 2015 09:14:39 +0000 (UTC) Received: (qmail 95034 invoked by uid 500); 20 Oct 2015 09:12:53 -0000 Delivered-To: apmail-hadoop-hdfs-dev-archive@hadoop.apache.org Received: (qmail 94848 invoked by uid 500); 20 Oct 2015 09:12:52 -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 94752 invoked by uid 99); 20 Oct 2015 09:12:52 -0000 Received: from Unknown (HELO spamd4-us-west.apache.org) (209.188.14.142) by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 20 Oct 2015 09:12:52 +0000 Received: from localhost (localhost [127.0.0.1]) by spamd4-us-west.apache.org (ASF Mail Server at spamd4-us-west.apache.org) with ESMTP id 03482C0EDB; Tue, 20 Oct 2015 09:12:52 +0000 (UTC) X-Virus-Scanned: Debian amavisd-new at spamd4-us-west.apache.org X-Spam-Flag: NO X-Spam-Score: 2 X-Spam-Level: ** X-Spam-Status: No, score=2 tagged_above=-999 required=6.31 tests=[FSL_HELO_BARE_IP_2=1.999, RCVD_IN_DNSWL_BLOCKED=0.001] autolearn=disabled Received: from mx1-us-west.apache.org ([10.40.0.8]) by localhost (spamd4-us-west.apache.org [10.40.0.11]) (amavisd-new, port 10024) with ESMTP id W8iN-1CS1hhX; Tue, 20 Oct 2015 09:12:48 +0000 (UTC) Received: from relayvx12c.securemail.intermedia.net (relayvx12c.securemail.intermedia.net [64.78.52.187]) by mx1-us-west.apache.org (ASF Mail Server at mx1-us-west.apache.org) with ESMTPS id 06E392304E; Tue, 20 Oct 2015 09:12:47 +0000 (UTC) Received: from securemail.intermedia.net (localhost [127.0.0.1]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by emg-ca-1-2.localdomain (Postfix) with ESMTPS id 9863F53E42; Tue, 20 Oct 2015 02:12:47 -0700 (PDT) Subject: Re: hadoop-hdfs-client splitoff is going to break code MIME-Version: 1.0 x-echoworx-msg-id: 9516efd8-68dd-42bc-ad1a-7975bc54a6b2 x-echoworx-emg-received: Tue, 20 Oct 2015 02:12:47.539 -0700 x-echoworx-action: delivered Received: from 10.254.155.17 ([10.254.155.17]) by emg-ca-1-2 (JAMES SMTP Server 2.3.2) with SMTP ID 582; Tue, 20 Oct 2015 02:12:47 -0700 (PDT) Received: from MBX080-W4-CO-1.exch080.serverpod.net (unknown [10.224.117.101]) (using TLSv1 with cipher AES128-SHA (128/128 bits)) (No client certificate requested) by emg-ca-1-2.localdomain (Postfix) with ESMTPS id 5B80C53E42; Tue, 20 Oct 2015 02:12:47 -0700 (PDT) Received: from MBX080-W4-CO-2.exch080.serverpod.net (10.224.117.102) by MBX080-W4-CO-1.exch080.serverpod.net (10.224.117.101) with Microsoft SMTP Server (TLS) id 15.0.1044.25; Tue, 20 Oct 2015 02:12:46 -0700 Received: from MBX080-W4-CO-2.exch080.serverpod.net ([10.224.117.102]) by mbx080-w4-co-2.exch080.serverpod.net ([10.224.117.102]) with mapi id 15.00.1044.021; Tue, 20 Oct 2015 02:12:46 -0700 From: Steve Loughran To: "common-dev@hadoop.apache.org" CC: "hdfs-dev@hadoop.apache.org" Thread-Topic: hadoop-hdfs-client splitoff is going to break code Thread-Index: AQHRBqbtCj8cwWlN80+euZfCB1F8855zytSAgADMLYA= Date: Tue, 20 Oct 2015 09:12:46 +0000 Message-ID: <99B01FB8-A9CD-4C5D-8D9A-1226C19FF244@hortonworks.com> References: <8E19C6FE-9EDF-4199-BA4F-DDDD547FAF85@hortonworks.com> In-Reply-To: Accept-Language: en-GB, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [86.178.206.108] x-source-routing-agent: Processed Content-Type: text/plain; charset="us-ascii" Content-ID: <298172235B07DB44A9ED1B4EAF0D34F5@exch080.serverpod.net> Content-Transfer-Encoding: quoted-printable > On 19 Oct 2015, at 22:01, Colin P. McCabe wrote: >=20 > Thanks for being proactive here, Steve. no, just building downstream things. Caught a failure of spark to build aga= inst trunk too, but that's a one liner to import the no-deprecated Auth Exc= eption > I think this is a good example of > why this change should have been done in a branch rather than having been > done directly in trunk. Given the size of the change, I'm now convincedt that yes, the hadoop-clien= t split should have been in a branch. What it offers there is the ability t= o choose when to merge in. As it is, any Hadoop 2.8 release will have this = feature. It's going to be visible, and that's going to add more testing. We= should expect this to cause things to surface in the release process. We a= lso need to consider what's going to be the policy if 2.8.0 turns out to br= eak something: what are we prepared to roll back?