Return-Path: Delivered-To: apmail-hadoop-mapreduce-user-archive@minotaur.apache.org Received: (qmail 21985 invoked from network); 8 Aug 2010 13:51:12 -0000 Received: from unknown (HELO mail.apache.org) (140.211.11.3) by 140.211.11.9 with SMTP; 8 Aug 2010 13:51:12 -0000 Received: (qmail 62612 invoked by uid 500); 8 Aug 2010 13:51:12 -0000 Delivered-To: apmail-hadoop-mapreduce-user-archive@hadoop.apache.org Received: (qmail 62300 invoked by uid 500); 8 Aug 2010 13:51:09 -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 62288 invoked by uid 99); 8 Aug 2010 13:51:08 -0000 Received: from nike.apache.org (HELO nike.apache.org) (192.87.106.230) by apache.org (qpsmtpd/0.29) with ESMTP; Sun, 08 Aug 2010 13:51:08 +0000 X-ASF-Spam-Status: No, hits=2.2 required=10.0 tests=FREEMAIL_ENVFROM_END_DIGIT,FREEMAIL_FROM,RCVD_IN_DNSWL_NONE,SPF_PASS,T_TO_NO_BRKTS_FREEMAIL X-Spam-Check-By: apache.org Received-SPF: pass (nike.apache.org: domain of psdc1978@gmail.com designates 209.85.214.176 as permitted sender) Received: from [209.85.214.176] (HELO mail-iw0-f176.google.com) (209.85.214.176) by apache.org (qpsmtpd/0.29) with ESMTP; Sun, 08 Aug 2010 13:51:01 +0000 Received: by iwn35 with SMTP id 35so1489077iwn.35 for ; Sun, 08 Aug 2010 06:50:40 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:received:in-reply-to :references:date:message-id:subject:from:to:content-type; bh=FqqUHmL60vqZaK1bpnhMYHJFOMb1UcXp3t+I9CEdxTY=; b=r3I9YEuKSpmS9ThpDoWiaSYOz5jFK9Hxsi6sy/5Am3A6J7yFWsBeCH2gQ3Q3Nmm6wp PBPDROl1nGVaoyzVz2R73PLCASlmsVtmRmvwS8d9ixEYMUobVwYZAWiSQh+JQy4PlTXz lnWTnq0+h+TgQ+97giDTbuZsZVHM+uHR3pTsc= 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 :content-type; b=cP3hqe0fNp3CEeBd02xZngqJTYd1cIdB2APgjoJZHvkQUIuPFZo1AuslGd0rexIomf 4rYioWMrRBLQlzWg+wo5qvLvmy8nx9pOCF+dA7OTysMbP9NmfWTLhOk+DIQWBEbay6nb nD5KczM/XivCVavrAkVOWuJONWElLbrZmrB98= MIME-Version: 1.0 Received: by 10.231.157.11 with SMTP id z11mr17253029ibw.147.1281275439998; Sun, 08 Aug 2010 06:50:39 -0700 (PDT) Received: by 10.231.144.136 with HTTP; Sun, 8 Aug 2010 06:50:39 -0700 (PDT) In-Reply-To: References: <125820.8750.qm@web15205.mail.cnb.yahoo.com> Date: Sun, 8 Aug 2010 14:50:39 +0100 Message-ID: Subject: Re: Map output files contains headers? From: Pedro Costa To: mapreduce-user@hadoop.apache.org Content-Type: text/plain; charset=ISO-8859-1 X-Virus-Checked: Checked by ClamAV on apache.org I'm testing the hashes using the wordcount example. On Sun, Aug 8, 2010 at 2:32 PM, welman Lu wrote: > Are you sure the value type in pair output by mapper, > is the same with the the value type in pair that accepted by > reducer. > > I use the BytesWritable, and the sizes of the data are same. > -- Pedro