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 0AA9E18AA3 for ; Wed, 3 Jun 2015 18:13:39 +0000 (UTC) Received: (qmail 77290 invoked by uid 500); 3 Jun 2015 18:13:38 -0000 Delivered-To: apmail-hadoop-yarn-issues-archive@hadoop.apache.org Received: (qmail 77241 invoked by uid 500); 3 Jun 2015 18:13:38 -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 77223 invoked by uid 99); 3 Jun 2015 18:13:38 -0000 Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 03 Jun 2015 18:13:38 +0000 Date: Wed, 3 Jun 2015 18:13:38 +0000 (UTC) From: "Sunil G (JIRA)" To: yarn-issues@hadoop.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Commented] (YARN-3510) Create an extension of ProportionalCapacityPreemptionPolicy which preempts a number of containers from each application in a way which respects fairness 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-3510?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14571433#comment-14571433 ] Sunil G commented on YARN-3510: ------------------------------- Extremely Sorry [~cwelch]. Somehow it got assigned to my name when i pressed enter. Could you please assign it back. > Create an extension of ProportionalCapacityPreemptionPolicy which preempts a number of containers from each application in a way which respects fairness > -------------------------------------------------------------------------------------------------------------------------------------------------------- > > Key: YARN-3510 > URL: https://issues.apache.org/jira/browse/YARN-3510 > Project: Hadoop YARN > Issue Type: Sub-task > Components: yarn > Reporter: Craig Welch > Assignee: Sunil G > Attachments: YARN-3510.2.patch, YARN-3510.3.patch, YARN-3510.5.patch, YARN-3510.6.patch > > > The ProportionalCapacityPreemptionPolicy preempts as many containers from applications as it can during it's preemption run. For fifo this makes sense, as it is prempting in reverse order & therefore maintaining the primacy of the "oldest". For fair ordering this does not have the desired effect - instead, it should preempt a number of containers from each application which maintains a fair balance /close to a fair balance between them -- This message was sent by Atlassian JIRA (v6.3.4#6332)