Return-Path: X-Original-To: apmail-hadoop-yarn-issues-archive@minotaur.apache.org Delivered-To: apmail-hadoop-yarn-issues-archive@minotaur.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id D404B17EC8 for ; Tue, 16 Feb 2016 09:31:18 +0000 (UTC) Received: (qmail 85360 invoked by uid 500); 16 Feb 2016 09:31:18 -0000 Delivered-To: apmail-hadoop-yarn-issues-archive@hadoop.apache.org Received: (qmail 85307 invoked by uid 500); 16 Feb 2016 09:31:18 -0000 Mailing-List: contact yarn-issues-help@hadoop.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: yarn-issues@hadoop.apache.org Delivered-To: mailing list yarn-issues@hadoop.apache.org Received: (qmail 85294 invoked by uid 99); 16 Feb 2016 09:31:18 -0000 Received: from arcas.apache.org (HELO arcas) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 16 Feb 2016 09:31:18 +0000 Received: from arcas.apache.org (localhost [127.0.0.1]) by arcas (Postfix) with ESMTP id 63AE52C14F2 for ; Tue, 16 Feb 2016 09:31:18 +0000 (UTC) Date: Tue, 16 Feb 2016 09:31:18 +0000 (UTC) From: "Tsuyoshi Ozawa (JIRA)" To: yarn-issues@hadoop.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Commented] (YARN-2225) Turn the virtual memory check to be off by default MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 [ https://issues.apache.org/jira/browse/YARN-2225?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15148329#comment-15148329 ] Tsuyoshi Ozawa commented on YARN-2225: -------------------------------------- Why not making vmem-pmem ratio larger to address the problem? > Turn the virtual memory check to be off by default > -------------------------------------------------- > > Key: YARN-2225 > URL: https://issues.apache.org/jira/browse/YARN-2225 > Project: Hadoop YARN > Issue Type: Bug > Reporter: Anubhav Dhoot > Assignee: Anubhav Dhoot > Attachments: YARN-2225.patch > > > The virtual memory check may not be the best way to isolate applications. Virtual memory is not the constrained resource. It would be better if we limit the swapping of the task using swapiness instead. This patch will turn this DEFAULT_NM_VMEM_CHECK_ENABLED off by default and let users turn it on if they need to. -- This message was sent by Atlassian JIRA (v6.3.4#6332)