Return-Path: X-Original-To: apmail-hadoop-mapreduce-user-archive@minotaur.apache.org Delivered-To: apmail-hadoop-mapreduce-user-archive@minotaur.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id 567D910157 for ; Thu, 7 Nov 2013 11:50:05 +0000 (UTC) Received: (qmail 81162 invoked by uid 500); 7 Nov 2013 11:49:36 -0000 Delivered-To: apmail-hadoop-mapreduce-user-archive@hadoop.apache.org Received: (qmail 81007 invoked by uid 500); 7 Nov 2013 11:49:25 -0000 Mailing-List: contact user-help@hadoop.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: user@hadoop.apache.org Delivered-To: mailing list user@hadoop.apache.org Received: (qmail 80956 invoked by uid 99); 7 Nov 2013 11:49:20 -0000 Received: from athena.apache.org (HELO athena.apache.org) (140.211.11.136) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 07 Nov 2013 11:49:20 +0000 X-ASF-Spam-Status: No, hits=-0.1 required=5.0 tests=HTML_MESSAGE,RCVD_IN_DNSWL_MED,SPF_PASS X-Spam-Check-By: apache.org Received-SPF: pass (athena.apache.org: domain of prvs=016f01c9a=Ananda.Murugan@honeywell.com designates 199.64.220.26 as permitted sender) Received: from [199.64.220.26] (HELO az18ip008.honeywell.com) (199.64.220.26) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 07 Nov 2013 11:49:13 +0000 Received-SPF: Neutral (az18ip008.honeywell.com: domain of Ananda.Murugan@honeywell.com does not assert whether or not 10.192.44.103 is permitted sender) identity=mailfrom; client-ip=10.192.44.103; receiver=az18ip008.honeywell.com; envelope-from="Ananda.Murugan@honeywell.com"; x-sender="Ananda.Murugan@honeywell.com"; x-conformance=spf_only; x-record-type="v=spf1" Received-SPF: None (az18ip008.honeywell.com: no sender authenticity information available from domain of postmaster@AZ18EX5002.global.ds.honeywell.com) identity=helo; client-ip=10.192.44.103; receiver=az18ip008.honeywell.com; envelope-from="Ananda.Murugan@honeywell.com"; x-sender="postmaster@AZ18EX5002.global.ds.honeywell.com"; x-conformance=spf_only X-SBRS: None X-SenderGroup: Relay_to_Internet X-MailFlowPolicy: $Relay X-Attachment_Filename: X-Attachment_Filesize: None X-IronPort-AV: E=Sophos;i="4.93,651,1378882800"; d="scan'208,217";a="70619351" Received: from unknown (HELO AZ18EX5002.global.ds.honeywell.com) ([10.192.44.103]) by az18ip008.honeywell.com with ESMTP; 07 Nov 2013 04:48:49 -0700 Received: from IE1AEX5003.global.ds.honeywell.com (199.63.219.243) by AZ18EX5002.global.ds.honeywell.com (10.192.24.127) with Microsoft SMTP Server (TLS) id 14.2.309.2; Thu, 7 Nov 2013 04:48:48 -0700 Received: from IE1AEX3007.global.ds.honeywell.com ([169.254.11.209]) by ie1aex5003.global.ds.honeywell.com ([199.63.219.243]) with mapi id 14.02.0309.002; Thu, 7 Nov 2013 17:18:21 +0530 From: "Chandra Mohan, Ananda Vel Murugan" To: "user@hadoop.apache.org" Subject: Data local map tasks is zero Thread-Topic: Data local map tasks is zero Thread-Index: Ac7brz3JlsV5ccK2Ska3v6CPoxCEug== Date: Thu, 7 Nov 2013 11:48:20 +0000 Message-ID: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-cr-hashedpuzzle: PZU= AVuH AYNb AeWo BRXh Bdku BdqI BkiE Ci0Q EGya EV3X EsmT GBsr HidT I5qr JOoP;1;dQBzAGUAcgBAAGgAYQBkAG8AbwBwAC4AYQBwAGEAYwBoAGUALgBvAHIAZwA=;Sosha1_v1;7;{5C3187BD-BEB6-4E29-8041-59710414F3E6};YQBuAGEAbgBkAGEALgBtAHUAcgB1AGcAYQBuAEAAaABvAG4AZQB5AHcAZQBsAGwALgBjAG8AbQA=;Thu, 07 Nov 2013 11:48:16 GMT;RABhAHQAYQAgAGwAbwBjAGEAbAAgAG0AYQBwACAAdABhAHMAawBzACAAaQBzACAAegBlAHIAbwA= x-cr-puzzleid: {5C3187BD-BEB6-4E29-8041-59710414F3E6} x-originating-ip: [199.63.219.250] Content-Type: multipart/alternative; boundary="_000_E5CD9C0EEBC5954A95554ACE79F770BB894EC1IE1AEX3007globald_" MIME-Version: 1.0 X-CFilter-Loop: Forwarded X-Virus-Checked: Checked by ClamAV on apache.org --_000_E5CD9C0EEBC5954A95554ACE79F770BB894EC1IE1AEX3007globald_ Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Hi, I have a 3 node cluster with dfs replication factor as 3. I have a single s= equence file over which I am running a map reduce job. When I run my job, w= eb UI shows data local map tasks as zero out of total 333 map tasks. I feel= this is pulling down the performance. Am I right? If yes, what should I ch= eck to fix this issue. Thanks for any assistance. Regards, Anand.C --_000_E5CD9C0EEBC5954A95554ACE79F770BB894EC1IE1AEX3007globald_ Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Hi,

 

I have a 3 node cluster with dfs replication factor = as 3. I have a single sequence file over which I am running a map reduce jo= b. When I run my job, web UI shows data local map tasks as zero out of tota= l 333 map tasks. I feel this is pulling down the performance. Am I right? If yes, what should I check to fix this = issue. Thanks for any assistance.

 

Regards,

Anand.C

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