Return-Path: X-Original-To: apmail-hadoop-mapreduce-issues-archive@minotaur.apache.org Delivered-To: apmail-hadoop-mapreduce-issues-archive@minotaur.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id 2FDED78CF for ; Thu, 8 Sep 2011 07:02:15 +0000 (UTC) Received: (qmail 98470 invoked by uid 500); 8 Sep 2011 07:02:11 -0000 Delivered-To: apmail-hadoop-mapreduce-issues-archive@hadoop.apache.org Received: (qmail 98020 invoked by uid 500); 8 Sep 2011 07:01:58 -0000 Mailing-List: contact mapreduce-issues-help@hadoop.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: mapreduce-issues@hadoop.apache.org Delivered-To: mailing list mapreduce-issues@hadoop.apache.org Received: (qmail 96937 invoked by uid 99); 8 Sep 2011 07:01:34 -0000 Received: from nike.apache.org (HELO nike.apache.org) (192.87.106.230) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 08 Sep 2011 07:01:34 +0000 X-ASF-Spam-Status: No, hits=-2000.5 required=5.0 tests=ALL_TRUSTED,RP_MATCHES_RCVD X-Spam-Check-By: apache.org Received: from [140.211.11.116] (HELO hel.zones.apache.org) (140.211.11.116) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 08 Sep 2011 07:01:31 +0000 Received: from hel.zones.apache.org (hel.zones.apache.org [140.211.11.116]) by hel.zones.apache.org (Postfix) with ESMTP id 81054882E1 for ; Thu, 8 Sep 2011 07:01:10 +0000 (UTC) Date: Thu, 8 Sep 2011 07:01:10 +0000 (UTC) From: "Ravi Teja Ch N V (JIRA)" To: mapreduce-issues@hadoop.apache.org Message-ID: <1322759791.1970.1315465270524.JavaMail.tomcat@hel.zones.apache.org> In-Reply-To: <1970800062.4522.1309411948518.JavaMail.tomcat@hel.zones.apache.org> Subject: [jira] [Updated] (MAPREDUCE-2632) Avoid calling the partitioner when the numReduceTasks is 1. MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 X-Virus-Checked: Checked by ClamAV on apache.org [ https://issues.apache.org/jira/browse/MAPREDUCE-2632?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Ravi Teja Ch N V updated MAPREDUCE-2632: ---------------------------------------- Attachment: MAPREDUCE-2632-1.patch Rebased the patch to the latest version. > Avoid calling the partitioner when the numReduceTasks is 1. > ----------------------------------------------------------- > > Key: MAPREDUCE-2632 > URL: https://issues.apache.org/jira/browse/MAPREDUCE-2632 > Project: Hadoop Map/Reduce > Issue Type: Improvement > Components: tasktracker > Affects Versions: 0.23.0 > Reporter: Ravi Teja Ch N V > Attachments: MAPREDUCE-2632-1.patch, MAPREDUCE-2632.patch > > > We can avoid the call to the partitioner when the number of reducers is 1.This will avoid the unnecessary computations by the partitioner. -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira