Return-Path: Delivered-To: apmail-hadoop-core-dev-archive@www.apache.org Received: (qmail 64498 invoked from network); 29 Mar 2008 00:42:43 -0000 Received: from hermes.apache.org (HELO mail.apache.org) (140.211.11.2) by minotaur.apache.org with SMTP; 29 Mar 2008 00:42:43 -0000 Received: (qmail 71388 invoked by uid 500); 29 Mar 2008 00:42:41 -0000 Delivered-To: apmail-hadoop-core-dev-archive@hadoop.apache.org Received: (qmail 71358 invoked by uid 500); 29 Mar 2008 00:42:41 -0000 Mailing-List: contact core-dev-help@hadoop.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: core-dev@hadoop.apache.org Delivered-To: mailing list core-dev@hadoop.apache.org Received: (qmail 71348 invoked by uid 99); 29 Mar 2008 00:42:41 -0000 Received: from nike.apache.org (HELO nike.apache.org) (192.87.106.230) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 28 Mar 2008 17:42:41 -0700 X-ASF-Spam-Status: No, hits=-2000.0 required=10.0 tests=ALL_TRUSTED X-Spam-Check-By: apache.org Received: from [140.211.11.140] (HELO brutus.apache.org) (140.211.11.140) by apache.org (qpsmtpd/0.29) with ESMTP; Sat, 29 Mar 2008 00:41:59 +0000 Received: from brutus (localhost [127.0.0.1]) by brutus.apache.org (Postfix) with ESMTP id 4C5C2234C0A7 for ; Fri, 28 Mar 2008 17:40:24 -0700 (PDT) Message-ID: <76233306.1206751224298.JavaMail.jira@brutus> Date: Fri, 28 Mar 2008 17:40:24 -0700 (PDT) From: "Runping Qi (JIRA)" To: core-dev@hadoop.apache.org Subject: [jira] Updated: (HADOOP-3130) Shuffling takes too long to get the last map output. In-Reply-To: <988740632.1206751104225.JavaMail.jira@brutus> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-Virus-Checked: Checked by ClamAV on apache.org [ https://issues.apache.org/jira/browse/HADOOP-3130?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Runping Qi updated HADOOP-3130: ------------------------------- Attachment: shuffling.log > Shuffling takes too long to get the last map output. > ---------------------------------------------------- > > Key: HADOOP-3130 > URL: https://issues.apache.org/jira/browse/HADOOP-3130 > Project: Hadoop Core > Issue Type: Bug > Reporter: Runping Qi > Attachments: shuffling.log > > > I noticed that towards the end of shufflling, the map output fetcher of the reducer backs off too aggressively. > I attach a fraction of one reduce log of my job. > Noticed that the last map output was not fetched in 2 minutes. -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.