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 274DC18551 for ; Mon, 7 Mar 2016 04:28:41 +0000 (UTC) Received: (qmail 89428 invoked by uid 500); 7 Mar 2016 04:28:40 -0000 Delivered-To: apmail-hadoop-yarn-issues-archive@hadoop.apache.org Received: (qmail 89371 invoked by uid 500); 7 Mar 2016 04:28:40 -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 89360 invoked by uid 99); 7 Mar 2016 04:28:40 -0000 Received: from arcas.apache.org (HELO arcas) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Mon, 07 Mar 2016 04:28:40 +0000 Received: from arcas.apache.org (localhost [127.0.0.1]) by arcas (Postfix) with ESMTP id B4F392C1F5C for ; Mon, 7 Mar 2016 04:28:40 +0000 (UTC) Date: Mon, 7 Mar 2016 04:28:40 +0000 (UTC) From: "Xianyin Xin (JIRA)" To: yarn-issues@hadoop.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Commented] (YARN-4752) [Umbrella] FairScheduler: Improve preemption 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-4752?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15182566#comment-15182566 ] Xianyin Xin commented on YARN-4752: ----------------------------------- hi [~kasha], can we consider to decouple the scheduling and preemption using the same {{getResourceUsage() }} as it block YARN-4120 and YARN-4090 which aims to improve the scheduling throughput? As discussed in YARN-4120, see, e.g, https://issues.apache.org/jira/browse/YARN-4120?focusedCommentId=14733235&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-14733235. Thanks. > [Umbrella] FairScheduler: Improve preemption > -------------------------------------------- > > Key: YARN-4752 > URL: https://issues.apache.org/jira/browse/YARN-4752 > Project: Hadoop YARN > Issue Type: Bug > Components: fairscheduler > Affects Versions: 2.8.0 > Reporter: Karthik Kambatla > > A number of issues have been reported with respect to preemption in FairScheduler along the lines of: > # FairScheduler preempts resources from nodes even if the resultant free resources cannot fit the incoming request. > # Preemption doesn't preempt from sibling queues > # Preemption doesn't preempt from sibling apps under the same queue that is over its fairshare > # ... > Filing this umbrella JIRA to group all the issues together and think of a comprehensive solution. -- This message was sent by Atlassian JIRA (v6.3.4#6332)