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 1D6D618321 for ; Tue, 16 Feb 2016 10:52:19 +0000 (UTC) Received: (qmail 91671 invoked by uid 500); 16 Feb 2016 10:52:18 -0000 Delivered-To: apmail-hadoop-yarn-issues-archive@hadoop.apache.org Received: (qmail 91623 invoked by uid 500); 16 Feb 2016 10:52:18 -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 91503 invoked by uid 99); 16 Feb 2016 10:52:18 -0000 Received: from arcas.apache.org (HELO arcas) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 16 Feb 2016 10:52:18 +0000 Received: from arcas.apache.org (localhost [127.0.0.1]) by arcas (Postfix) with ESMTP id 70BCB2C1F75 for ; Tue, 16 Feb 2016 10:52:18 +0000 (UTC) Date: Tue, 16 Feb 2016 10:52:18 +0000 (UTC) From: "Akira AJISAKA (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=15148449#comment-15148449 ] Akira AJISAKA commented on YARN-2225: ------------------------------------- bq. Why not making vmem-pmem ratio larger to address the problem? Yes, we can avoid the error by making vmem-pmem ratio larger, so the problems are, the default value of the ratio is too small for Java 8 and the virtual memory check is enabled by default. Can we make the ratio larger, or make the vmem check disabled by default? > 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)