From mapreduce-issues-return-34828-apmail-hadoop-mapreduce-issues-archive=hadoop.apache.org@hadoop.apache.org Thu Dec 1 10:20:03 2011 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 AE47D768B for ; Thu, 1 Dec 2011 10:20:03 +0000 (UTC) Received: (qmail 43853 invoked by uid 500); 1 Dec 2011 10:20:03 -0000 Delivered-To: apmail-hadoop-mapreduce-issues-archive@hadoop.apache.org Received: (qmail 43821 invoked by uid 500); 1 Dec 2011 10:20:03 -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 43813 invoked by uid 99); 1 Dec 2011 10:20:03 -0000 Received: from nike.apache.org (HELO nike.apache.org) (192.87.106.230) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 01 Dec 2011 10:20:03 +0000 X-ASF-Spam-Status: No, hits=-2001.2 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, 01 Dec 2011 10:20:01 +0000 Received: from hel.zones.apache.org (hel.zones.apache.org [140.211.11.116]) by hel.zones.apache.org (Postfix) with ESMTP id 3513CAB375 for ; Thu, 1 Dec 2011 10:19:40 +0000 (UTC) Date: Thu, 1 Dec 2011 10:19:40 +0000 (UTC) From: "Subroto Sanyal (Commented) (JIRA)" To: mapreduce-issues@hadoop.apache.org Message-ID: <1181204787.30385.1322734780219.JavaMail.tomcat@hel.zones.apache.org> In-Reply-To: <1142117380.11243.1320769551885.JavaMail.tomcat@hel.zones.apache.org> Subject: [jira] [Commented] (MAPREDUCE-3376) Old mapred API combiner uses NULL reporter 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-3376?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13160796#comment-13160796 ] Subroto Sanyal commented on MAPREDUCE-3376: ------------------------------------------- @Mahadev I will again look into the testcase(run it) and will put my findings. > Old mapred API combiner uses NULL reporter > ------------------------------------------ > > Key: MAPREDUCE-3376 > URL: https://issues.apache.org/jira/browse/MAPREDUCE-3376 > Project: Hadoop Map/Reduce > Issue Type: Bug > Components: mrv1, mrv2 > Affects Versions: 0.20.205.0, 0.23.0, 0.24.0 > Reporter: Robert Joseph Evans > Assignee: Subroto Sanyal > Fix For: 0.23.1 > > Attachments: MAPREDUCE-3376.patch > > > The OldCombinerRunner class inside Task.java uses a NULL Reporter. If the combiner code runs for an extended period of time, even with reporting progress as it should, the map task can timeout and be killed. It appears that the NewCombinerRunner class uses a valid reporter and as such is not impacted by this bug. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa For more information on JIRA, see: http://www.atlassian.com/software/jira