Return-Path: X-Original-To: apmail-hive-dev-archive@www.apache.org Delivered-To: apmail-hive-dev-archive@www.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id 4B46110690 for ; Sat, 27 Jul 2013 02:35:52 +0000 (UTC) Received: (qmail 27006 invoked by uid 500); 27 Jul 2013 02:35:51 -0000 Delivered-To: apmail-hive-dev-archive@hive.apache.org Received: (qmail 26730 invoked by uid 500); 27 Jul 2013 02:35:51 -0000 Mailing-List: contact dev-help@hive.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: dev@hive.apache.org Delivered-To: mailing list dev@hive.apache.org Received: (qmail 26721 invoked by uid 500); 27 Jul 2013 02:35:49 -0000 Delivered-To: apmail-hadoop-hive-dev@hadoop.apache.org Received: (qmail 26715 invoked by uid 99); 27 Jul 2013 02:35:49 -0000 Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Sat, 27 Jul 2013 02:35:49 +0000 Date: Sat, 27 Jul 2013 02:35:49 +0000 (UTC) From: "Gunther Hagleitner (JIRA)" To: hive-dev@hadoop.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Updated] (HIVE-4825) Separate MapredWork into MapWork and ReduceWork MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 [ https://issues.apache.org/jira/browse/HIVE-4825?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Gunther Hagleitner updated HIVE-4825: ------------------------------------- Attachment: HIVE-4825.5.patch .5 is rebased to trunk + addresses Ashutosh' review comments. > Separate MapredWork into MapWork and ReduceWork > ----------------------------------------------- > > Key: HIVE-4825 > URL: https://issues.apache.org/jira/browse/HIVE-4825 > Project: Hive > Issue Type: Improvement > Reporter: Gunther Hagleitner > Assignee: Gunther Hagleitner > Priority: Minor > Attachments: HIVE-4825.1.patch, HIVE-4825.2.code.patch, HIVE-4825.2.testfiles.patch, HIVE-4825.3.testfiles.patch, HIVE-4825.4.patch, HIVE-4825.5.patch > > > Right now all the information needed to run an MR job is captured in MapredWork. This class has aliases, tagging info, table descriptors etc. > For Tez and MRR it will be useful to break this into map and reduce specific pieces. The separation is natural and I think has value in itself, it makes the code easier to understand. However, it will also allow us to reuse these abstractions in Tez where you'll have a graph of these instead of just 1M and 0-1R. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira