Return-Path: Delivered-To: apmail-hadoop-mapreduce-user-archive@minotaur.apache.org Received: (qmail 26292 invoked from network); 25 Mar 2011 18:44:32 -0000 Received: from hermes.apache.org (HELO mail.apache.org) (140.211.11.3) by minotaur.apache.org with SMTP; 25 Mar 2011 18:44:32 -0000 Received: (qmail 26368 invoked by uid 500); 25 Mar 2011 18:44:31 -0000 Delivered-To: apmail-hadoop-mapreduce-user-archive@hadoop.apache.org Received: (qmail 26327 invoked by uid 500); 25 Mar 2011 18:44:31 -0000 Mailing-List: contact mapreduce-user-help@hadoop.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: mapreduce-user@hadoop.apache.org Delivered-To: mailing list mapreduce-user@hadoop.apache.org Received: (qmail 26319 invoked by uid 99); 25 Mar 2011 18:44:31 -0000 Received: from athena.apache.org (HELO athena.apache.org) (140.211.11.136) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 25 Mar 2011 18:44:31 +0000 X-ASF-Spam-Status: No, hits=-0.0 required=5.0 tests=RCVD_IN_DNSWL_NONE,SPF_PASS X-Spam-Check-By: apache.org Received-SPF: pass (athena.apache.org: local policy) Received: from [208.97.132.177] (HELO homiemail-a3.g.dreamhost.com) (208.97.132.177) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 25 Mar 2011 18:44:26 +0000 Received: from homiemail-a3.g.dreamhost.com (localhost [127.0.0.1]) by homiemail-a3.g.dreamhost.com (Postfix) with ESMTP id BF2AB284076 for ; Fri, 25 Mar 2011 11:44:04 -0700 (PDT) DomainKey-Signature: a=rsa-sha1; c=nofws; d=darose.net; h=message-id:date :from:mime-version:to:subject:references:in-reply-to :content-type:content-transfer-encoding; q=dns; s=darose.net; b= Nd79IP69T6biBg9uNhp9o/KPgsI5TZ4fVLgpGfbWvQbzb0MyLBHyOj0RS56UpwfK KzwHrOzv7/3R6DCfriN+i2lD/kt38reLPZ3WP5SDtF0EPrHOqUNR9f+sU1iVDuz0 dmC5gPfINre4AZ3s/usM8kuAD5Nsejo7+JCy3+yQ84E= DKIM-Signature: v=1; a=rsa-sha1; c=relaxed; d=darose.net; h=message-id :date:from:mime-version:to:subject:references:in-reply-to :content-type:content-transfer-encoding; s=darose.net; bh=YtmgKt ZjFysFmHkJn/0tvC9FRLo=; b=0K9DxU5cTqGQu0JfoSn+puOCNgxkscRFCx0NjE hv/cMXLrBiIECtDqPXtLUiyZLCYO6LbZXmWEQNkGYgrfBP9zFYYcShGdraF8Vjzl stOKTUzBnec7zE4F9J0E6DFoY+lHWHYXzYzKbEofxsLvSpOzCtG+CTH33K73zJn0 fXvWo= Received: from darsys12 (cpe-66-108-142-190.nyc.res.rr.com [66.108.142.190]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) (Authenticated sender: darose@darose.net) by homiemail-a3.g.dreamhost.com (Postfix) with ESMTPSA id 9FE7D284071 for ; Fri, 25 Mar 2011 11:44:04 -0700 (PDT) Received: from [10.1.0.2] by darsys12 with esmtp (Exim 4.74) (envelope-from ) id 1Q3BzP-0004cj-8X for mapreduce-user@hadoop.apache.org; Fri, 25 Mar 2011 14:44:03 -0400 Message-ID: <4D8CE273.6000301@darose.net> Date: Fri, 25 Mar 2011 14:44:03 -0400 From: David Rosenstrauch User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.15) Gecko/20110307 Lanikai/3.1.9 MIME-Version: 1.0 To: mapreduce-user@hadoop.apache.org Subject: Re: change number of slots in MR References: In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit On 03/25/2011 02:26 PM, Pedro Costa wrote: > Hi, > > is it possible to configure the total number of slots that a > TaskTracker has, to run the map and reduce tasks? > > Thanks, Yes. See the mapred.map.tasks and mapred.reduce.tasks settings. HTH, DR