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 7AA4C1834C for ; Thu, 21 Jan 2016 18:27:40 +0000 (UTC) Received: (qmail 16927 invoked by uid 500); 21 Jan 2016 18:27:40 -0000 Delivered-To: apmail-hadoop-yarn-issues-archive@hadoop.apache.org Received: (qmail 16889 invoked by uid 500); 21 Jan 2016 18:27:40 -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 16598 invoked by uid 99); 21 Jan 2016 18:27:40 -0000 Received: from arcas.apache.org (HELO arcas) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 21 Jan 2016 18:27:40 +0000 Received: from arcas.apache.org (localhost [127.0.0.1]) by arcas (Postfix) with ESMTP id 18B542C1F60 for ; Thu, 21 Jan 2016 18:27:40 +0000 (UTC) Date: Thu, 21 Jan 2016 18:27:40 +0000 (UTC) From: "Jason Lowe (JIRA)" To: yarn-issues@hadoop.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Commented] (YARN-4610) Reservations continue looking for one app causes other apps to starve 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-4610?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15111048#comment-15111048 ] Jason Lowe commented on YARN-4610: ---------------------------------- Thanks for the reviews! Committing this. > Reservations continue looking for one app causes other apps to starve > --------------------------------------------------------------------- > > Key: YARN-4610 > URL: https://issues.apache.org/jira/browse/YARN-4610 > Project: Hadoop YARN > Issue Type: Bug > Components: capacityscheduler > Affects Versions: 2.7.1 > Reporter: Jason Lowe > Assignee: Jason Lowe > Priority: Blocker > Attachments: YARN-4610-branch-2.7.002.patch, YARN-4610.001.patch, YARN-4610.branch-2.7.001.patch > > > CapacityScheduler's LeafQueue has "reservations continue looking" logic that allows an application to unreserve elsewhere to fulfil a container request on a node that has available space. However in 2.7 that logic seems to break allocations for subsequent apps in the queue. Once a user hits its user limit, subsequent apps in the queue for other users receive containers at a significantly reduced rate. -- This message was sent by Atlassian JIRA (v6.3.4#6332)