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 AECEB2009C6 for ; Tue, 17 May 2016 02:50:14 +0200 (CEST) Received: by cust-asf.ponee.io (Postfix) id AD3CA160A20; Tue, 17 May 2016 00:50:14 +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 277A2160A16 for ; Tue, 17 May 2016 02:50:14 +0200 (CEST) Received: (qmail 71565 invoked by uid 500); 17 May 2016 00:50:13 -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 71534 invoked by uid 99); 17 May 2016 00:50:13 -0000 Received: from arcas.apache.org (HELO arcas) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 17 May 2016 00:50:13 +0000 Received: from arcas.apache.org (localhost [127.0.0.1]) by arcas (Postfix) with ESMTP id 1A2FD2C1F58 for ; Tue, 17 May 2016 00:50:13 +0000 (UTC) Date: Tue, 17 May 2016 00:50:13 +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 00:50:14 -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-6696.001.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 > > > 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