Return-Path: X-Original-To: apmail-hadoop-yarn-dev-archive@minotaur.apache.org Delivered-To: apmail-hadoop-yarn-dev-archive@minotaur.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id 1DC1B118F3 for ; Tue, 17 Jun 2014 14:40:04 +0000 (UTC) Received: (qmail 60813 invoked by uid 500); 17 Jun 2014 14:40:02 -0000 Delivered-To: apmail-hadoop-yarn-dev-archive@hadoop.apache.org Received: (qmail 60727 invoked by uid 500); 17 Jun 2014 14:40:02 -0000 Mailing-List: contact yarn-dev-help@hadoop.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: yarn-dev@hadoop.apache.org Delivered-To: mailing list yarn-dev@hadoop.apache.org Received: (qmail 60482 invoked by uid 99); 17 Jun 2014 14:40:02 -0000 Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 17 Jun 2014 14:40:02 +0000 Date: Tue, 17 Jun 2014 14:40:02 +0000 (UTC) From: "Jason Lowe (JIRA)" To: yarn-dev@hadoop.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Created] (YARN-2171) AMs block on the CapacityScheduler lock during allocate() MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 Jason Lowe created YARN-2171: -------------------------------- Summary: AMs block on the CapacityScheduler lock during allocate() Key: YARN-2171 URL: https://issues.apache.org/jira/browse/YARN-2171 Project: Hadoop YARN Issue Type: Bug Components: capacityscheduler Affects Versions: 2.4.0, 0.23.10 Reporter: Jason Lowe Assignee: Jason Lowe Priority: Critical When AMs heartbeat into the RM via the allocate() call they are blocking on the CapacityScheduler lock when trying to get the number of nodes in the cluster via getNumClusterNodes. -- This message was sent by Atlassian JIRA (v6.2#6252)