Return-Path: X-Original-To: archive-asf-public-internal@cust-asf2.ponee.io Delivered-To: archive-asf-public-internal@cust-asf2.ponee.io Received: from cust-asf.ponee.io (cust-asf.ponee.io [163.172.22.183]) by cust-asf2.ponee.io (Postfix) with ESMTP id A85902009D9 for ; Tue, 17 May 2016 21:50:14 +0200 (CEST) Received: by cust-asf.ponee.io (Postfix) id A5FE11607A8; Tue, 17 May 2016 19:50:14 +0000 (UTC) Delivered-To: archive-asf-public@cust-asf.ponee.io Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by cust-asf.ponee.io (Postfix) with SMTP id 2A1411609F5 for ; Tue, 17 May 2016 21:50:14 +0200 (CEST) Received: (qmail 3108 invoked by uid 500); 17 May 2016 19:50:13 -0000 Mailing-List: contact mapreduce-issues-help@hadoop.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Delivered-To: mailing list mapreduce-issues@hadoop.apache.org Received: (qmail 3030 invoked by uid 99); 17 May 2016 19:50:13 -0000 Received: from arcas.apache.org (HELO arcas) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 17 May 2016 19:50:13 +0000 Received: from arcas.apache.org (localhost [127.0.0.1]) by arcas (Postfix) with ESMTP id DB4722C1F62 for ; Tue, 17 May 2016 19:50:12 +0000 (UTC) Date: Tue, 17 May 2016 19:50:12 +0000 (UTC) From: "zhihai xu (JIRA)" To: mapreduce-issues@hadoop.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Updated] (MAPREDUCE-6696) Add a configuration to limit the number of map tasks allowed per job. MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 archived-at: Tue, 17 May 2016 19:50:14 -0000 [ https://issues.apache.org/jira/browse/MAPREDUCE-6696?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] zhihai xu updated MAPREDUCE-6696: --------------------------------- Attachment: MAPREDUCE-6696.002.patch > Add a configuration to limit the number of map tasks allowed per job. > --------------------------------------------------------------------- > > Key: MAPREDUCE-6696 > URL: https://issues.apache.org/jira/browse/MAPREDUCE-6696 > Project: Hadoop Map/Reduce > Issue Type: Improvement > Components: job submission > Affects Versions: 2.8.0 > Reporter: zhihai xu > Assignee: zhihai xu > Attachments: MAPREDUCE-6696.000.patch, MAPREDUCE-6696.001.patch, MAPREDUCE-6696.002.patch > > > Add a configuration "mapreduce.job.max.map" to limit the number of map tasks allowed per job. It will be useful for Hadoop admin to save Hadoop cluster resource by preventing users from submitting big mapreduce jobs. A mapredeuce job with too many mappers may fail with OOM after running for long time. It will be a big waste. -- This message was sent by Atlassian JIRA (v6.3.4#6332) --------------------------------------------------------------------- To unsubscribe, e-mail: mapreduce-issues-unsubscribe@hadoop.apache.org For additional commands, e-mail: mapreduce-issues-help@hadoop.apache.org