Return-Path: Delivered-To: apmail-hadoop-common-user-archive@www.apache.org Received: (qmail 99490 invoked from network); 15 Apr 2011 15:57:33 -0000 Received: from hermes.apache.org (HELO mail.apache.org) (140.211.11.3) by minotaur.apache.org with SMTP; 15 Apr 2011 15:57:33 -0000 Received: (qmail 73338 invoked by uid 500); 15 Apr 2011 15:57:30 -0000 Delivered-To: apmail-hadoop-common-user-archive@hadoop.apache.org Received: (qmail 73289 invoked by uid 500); 15 Apr 2011 15:57:30 -0000 Mailing-List: contact common-user-help@hadoop.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: common-user@hadoop.apache.org Delivered-To: mailing list common-user@hadoop.apache.org Received: (qmail 73281 invoked by uid 99); 15 Apr 2011 15:57:30 -0000 Received: from nike.apache.org (HELO nike.apache.org) (192.87.106.230) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 15 Apr 2011 15:57:30 +0000 X-ASF-Spam-Status: No, hits=1.5 required=5.0 tests=FREEMAIL_FROM,HTML_MESSAGE,RCVD_IN_DNSWL_LOW,RFC_ABUSE_POST,SPF_PASS,T_TO_NO_BRKTS_FREEMAIL X-Spam-Check-By: apache.org Received-SPF: pass (nike.apache.org: domain of shijuwei@gmail.com designates 209.85.216.48 as permitted sender) Received: from [209.85.216.48] (HELO mail-qw0-f48.google.com) (209.85.216.48) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 15 Apr 2011 15:57:23 +0000 Received: by qwj9 with SMTP id 9so2209366qwj.35 for ; Fri, 15 Apr 2011 08:57:02 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:in-reply-to:references:date :message-id:subject:from:to:cc:content-type; bh=7l0R3WyKHgCYZZ+vBo858/sb8O2umpaDXVuyA/xelJM=; b=YkVxxSNsDI/ME4mSoGLxvTtKQYGSnKYrdYTT7EF4GsEXvmNg7YjHjepE8OM5sfi9rm iUJRyogMj9+axnQDzDXPFOIm6LqO19cct/Ovr/GrEAf6loSm7Ayj3Zd/GMr7daekby/b FRR+cZNs2q3FiKfZYdiD0QwN7F953FjJet1Ow= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; b=pfEJv6fNM8uWTCEdb4rU2Bs31qoTOMhcgrC+Ya+KNgpJZiLxCwUlrSoQ9L02SrDLoW BGIg4FKMTDoY9Zg0IjQQw6Grqi36FdV0J3AqaIbWCnF/TAjv7wCjVrqZ0Kq93X7zfWcE 0i3r8oqTOQ83M5aWKHtwd0yq4q56jxIXSFVcM= MIME-Version: 1.0 Received: by 10.229.0.75 with SMTP id 11mr1616034qca.94.1302883022279; Fri, 15 Apr 2011 08:57:02 -0700 (PDT) Received: by 10.229.229.134 with HTTP; Fri, 15 Apr 2011 08:57:02 -0700 (PDT) In-Reply-To: References: <4DA85E5B.1030805@volunia.com> Date: Fri, 15 Apr 2011 23:57:02 +0800 Message-ID: Subject: Re: Force single map task execution per node for a job From: Juwei Shi To: common-user@hadoop.apache.org Cc: baran cakici Content-Type: multipart/alternative; boundary=90e6ba5bb9ddba173804a0f717f8 X-Virus-Checked: Checked by ClamAV on apache.org --90e6ba5bb9ddba173804a0f717f8 Content-Type: text/plain; charset=ISO-8859-1 You should set mapred.tasktracker.map.tasks.maximum=1 on each node. 2011/4/15 baran cakici > mapred.map.tasks=1 > > did you try that?? > > 2011/4/15 Massimo Schiavon > > > I need that during the execution of a particular job, a maximum of one > map > > task execute on each cluster node. > > I've tried setting mapred.tasktracker.map.tasks.maximum=1 on job > > configuration but seems not to work. > > > > Anyone coul'd help? > > Thanks > > > > Massimo > > > > -- > > DISCLAIMER: This e-mail and any attachment is for authorised use by > > the intended recipient(s) only. It may contain proprietary material, > > confidential information and/or be subject to legal privilege. It > > should not be copied, disclosed to, retained or used by, any other > > party. If you are not an intended recipient then please promptly > > delete this e-mail and any attachment and all copies and inform > > the sender. Thank you. > > > > > -- - Juwei --90e6ba5bb9ddba173804a0f717f8--