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 C009918414 for ; Tue, 29 Sep 2015 17:28:26 +0000 (UTC) Received: (qmail 62780 invoked by uid 500); 29 Sep 2015 17:28:04 -0000 Delivered-To: apmail-hadoop-yarn-issues-archive@hadoop.apache.org Received: (qmail 62733 invoked by uid 500); 29 Sep 2015 17:28:04 -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 62719 invoked by uid 99); 29 Sep 2015 17:28:04 -0000 Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 29 Sep 2015 17:28:04 +0000 Date: Tue, 29 Sep 2015 17:28:04 +0000 (UTC) From: "Hudson (JIRA)" To: yarn-issues@hadoop.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Commented] (YARN-4066) Large number of queues choke fair scheduler 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-4066?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14935489#comment-14935489 ] Hudson commented on YARN-4066: ------------------------------ SUCCESS: Integrated in Hadoop-Yarn-trunk-Java8 #467 (See [https://builds.apache.org/job/Hadoop-Yarn-trunk-Java8/467/]) YARN-4066. Large number of queues choke fair scheduler. (Johan Gustavsson via kasha) (kasha: rev a0b5a0a419dfc07b7ac45c06b11b4c8dc7e79958) * hadoop-yarn-project/CHANGES.txt * hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/QueueManager.java > Large number of queues choke fair scheduler > ------------------------------------------- > > Key: YARN-4066 > URL: https://issues.apache.org/jira/browse/YARN-4066 > Project: Hadoop YARN > Issue Type: Bug > Components: fairscheduler > Affects Versions: 2.7.1 > Reporter: Johan Gustavsson > Assignee: Johan Gustavsson > Fix For: 2.8.0 > > Attachments: YARN-4066-2.patch, YARN-4066-3.patch, yarn-4066-1.patch > > > Due to synchronization and all the loops performed during queue creation, setting a large amount of queues (12000+) will completely choke the scheduler. To deal with this some optimization to "QueueManager.updateAllocationConfiguration(AllocationConfiguration queueConf)" should be done to reduce the amount of unnesecary loops. The attached patch have been tested to work with atleast 96000 queues. -- This message was sent by Atlassian JIRA (v6.3.4#6332)