Return-Path: X-Original-To: apmail-hadoop-yarn-dev-archive@minotaur.apache.org Delivered-To: apmail-hadoop-yarn-dev-archive@minotaur.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id 6EA14DCA5 for ; Thu, 23 May 2013 19:01:25 +0000 (UTC) Received: (qmail 59403 invoked by uid 500); 23 May 2013 19:01:23 -0000 Delivered-To: apmail-hadoop-yarn-dev-archive@hadoop.apache.org Received: (qmail 59080 invoked by uid 500); 23 May 2013 19:01:23 -0000 Mailing-List: contact yarn-dev-help@hadoop.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: yarn-dev@hadoop.apache.org Delivered-To: mailing list yarn-dev@hadoop.apache.org Received: (qmail 58983 invoked by uid 99); 23 May 2013 19:01:21 -0000 Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 23 May 2013 19:01:21 +0000 Date: Thu, 23 May 2013 19:01:21 +0000 (UTC) From: "Bikas Saha (JIRA)" To: yarn-dev@hadoop.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Created] (YARN-723) Yarn default value of physical cpu cores to virtual core is 2 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 Bikas Saha created YARN-723: ------------------------------- Summary: Yarn default value of physical cpu cores to virtual core is 2 Key: YARN-723 URL: https://issues.apache.org/jira/browse/YARN-723 Project: Hadoop YARN Issue Type: Bug Reporter: Bikas Saha The default virtual core allocation in the RM is 1. That means every container will get 1 virtual core == 1/2 a physical core. Not sure if this breaks implicit MR assumptions of maps/reduces getting at least 1 physical cpu. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira