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 39F04110FE for ; Sat, 21 Jun 2014 07:27:26 +0000 (UTC) Received: (qmail 24851 invoked by uid 500); 21 Jun 2014 07:27:24 -0000 Delivered-To: apmail-hadoop-yarn-issues-archive@hadoop.apache.org Received: (qmail 24810 invoked by uid 500); 21 Jun 2014 07:27:24 -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 24798 invoked by uid 99); 21 Jun 2014 07:27:24 -0000 Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Sat, 21 Jun 2014 07:27:24 +0000 Date: Sat, 21 Jun 2014 07:27:24 +0000 (UTC) From: "Karthik Kambatla (JIRA)" To: yarn-issues@hadoop.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Commented] (YARN-2187) FairScheduler: Disable max-AM-share check 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-2187?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14039726#comment-14039726 ] Karthik Kambatla commented on YARN-2187: ---------------------------------------- +1. Committing this. > FairScheduler: Disable max-AM-share check by default > ---------------------------------------------------- > > Key: YARN-2187 > URL: https://issues.apache.org/jira/browse/YARN-2187 > Project: Hadoop YARN > Issue Type: Bug > Components: fairscheduler > Affects Versions: 2.5.0 > Reporter: Robert Kanter > Assignee: Robert Kanter > Attachments: YARN-2187.patch > > > Say you have a small cluster with 8gb memory and 5 queues. This means that equal queue can have 8gb / 5 = 1.6gb but an AM requires 2gb to start so no AMs can be started. By default, max-am-share check should be disabled so users don't see a regression. On medium-sized clusters, it still makes sense to set the max-am-share to a value between 0 and 1. -- This message was sent by Atlassian JIRA (v6.2#6252)