Return-Path: Delivered-To: apmail-hadoop-mapreduce-issues-archive@minotaur.apache.org Received: (qmail 92025 invoked from network); 22 Dec 2009 06:16:00 -0000 Received: from hermes.apache.org (HELO mail.apache.org) (140.211.11.3) by minotaur.apache.org with SMTP; 22 Dec 2009 06:16:00 -0000 Received: (qmail 16102 invoked by uid 500); 22 Dec 2009 06:15:45 -0000 Delivered-To: apmail-hadoop-mapreduce-issues-archive@hadoop.apache.org Received: (qmail 16074 invoked by uid 500); 22 Dec 2009 06:15:45 -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 15869 invoked by uid 99); 22 Dec 2009 06:15:41 -0000 Received: from nike.apache.org (HELO nike.apache.org) (192.87.106.230) by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 22 Dec 2009 06:15:41 +0000 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; Tue, 22 Dec 2009 06:15:39 +0000 Received: from brutus (localhost [127.0.0.1]) by brutus.apache.org (Postfix) with ESMTP id 8CCB4234C1F1 for ; Mon, 21 Dec 2009 22:15:18 -0800 (PST) Message-ID: <1327983347.1261462518575.JavaMail.jira@brutus> Date: Tue, 22 Dec 2009 06:15:18 +0000 (UTC) From: "Amar Kamat (JIRA)" To: mapreduce-issues@hadoop.apache.org Subject: [jira] Updated: (MAPREDUCE-1316) JobTracker holds stale references to retired jobs via unreported tasks In-Reply-To: <254578906.1261130178427.JavaMail.jira@brutus> 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-1316?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Amar Kamat updated MAPREDUCE-1316: ---------------------------------- Description: JobTracker fails to remove _unreported_ tasks' mapping from _taskToTIPMap_ if the job finishes and retires. _Unreported tasks_ refers to tasks that were scheduled but the tasktracker did not report back with the task status. In such cases a stale reference is held to TaskInProgress (and thus JobInProgress) long after the job is gone leading to memory leak. (was: JobTracker fails to remove speculative tasks' mapping from _taskToTIPMap_ if the job finishes and retires before the tracker (running the speculative tasks) reports back. In such cases a stale reference is held to TaskInProgress (and thus JobInProgress) long after the job is gone leading to memory leak.) Summary: JobTracker holds stale references to retired jobs via unreported tasks (was: JobTracker holds stale references to retired jobs via speculated tips ) > JobTracker holds stale references to retired jobs via unreported tasks > ----------------------------------------------------------------------- > > Key: MAPREDUCE-1316 > URL: https://issues.apache.org/jira/browse/MAPREDUCE-1316 > Project: Hadoop Map/Reduce > Issue Type: Bug > Components: jobtracker > Reporter: Amar Kamat > Assignee: Amar Kamat > Priority: Blocker > > JobTracker fails to remove _unreported_ tasks' mapping from _taskToTIPMap_ if the job finishes and retires. _Unreported tasks_ refers to tasks that were scheduled but the tasktracker did not report back with the task status. In such cases a stale reference is held to TaskInProgress (and thus JobInProgress) long after the job is gone leading to memory leak. -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.