Return-Path: X-Original-To: archive-asf-public-internal@cust-asf2.ponee.io Delivered-To: archive-asf-public-internal@cust-asf2.ponee.io Received: from cust-asf.ponee.io (cust-asf.ponee.io [163.172.22.183]) by cust-asf2.ponee.io (Postfix) with ESMTP id 52C1F200828 for ; Fri, 13 May 2016 18:31:14 +0200 (CEST) Received: by cust-asf.ponee.io (Postfix) id 5144516099F; Fri, 13 May 2016 16:31:14 +0000 (UTC) Delivered-To: archive-asf-public@cust-asf.ponee.io Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by cust-asf.ponee.io (Postfix) with SMTP id BFE371602BE for ; Fri, 13 May 2016 18:31:13 +0200 (CEST) Received: (qmail 60912 invoked by uid 500); 13 May 2016 16:31:13 -0000 Mailing-List: contact yarn-issues-help@hadoop.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Delivered-To: mailing list yarn-issues@hadoop.apache.org Received: (qmail 60894 invoked by uid 99); 13 May 2016 16:31:12 -0000 Received: from arcas.apache.org (HELO arcas) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 13 May 2016 16:31:12 +0000 Received: from arcas.apache.org (localhost [127.0.0.1]) by arcas (Postfix) with ESMTP id CE0122C1F5D for ; Fri, 13 May 2016 16:31:12 +0000 (UTC) Date: Fri, 13 May 2016 16:31:12 +0000 (UTC) From: "Yufei Gu (JIRA)" To: yarn-issues@hadoop.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Commented] (YARN-4866) FairScheduler: AMs can consume all vcores leading to a livelock when using FAIR policy MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 archived-at: Fri, 13 May 2016 16:31:14 -0000 [ https://issues.apache.org/jira/browse/YARN-4866?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15282855#comment-15282855 ] Yufei Gu commented on YARN-4866: -------------------------------- Test failures are unrelated to the patch. > FairScheduler: AMs can consume all vcores leading to a livelock when using FAIR policy > -------------------------------------------------------------------------------------- > > Key: YARN-4866 > URL: https://issues.apache.org/jira/browse/YARN-4866 > Project: Hadoop YARN > Issue Type: Bug > Components: fairscheduler > Affects Versions: 2.8.0 > Reporter: Karthik Kambatla > Assignee: Yufei Gu > Attachments: YARN-4866.001.patch, YARN-4866.002.patch, YARN-4866.003.patch, YARN-4866.004.patch > > > The maxAMShare uses the queue's policy for enforcing limits. When using FAIR policy, this considers only memory. If there are fewer vcores on the cluster, the AMs can end up taking all the vcores leading to a livelock. -- This message was sent by Atlassian JIRA (v6.3.4#6332) --------------------------------------------------------------------- To unsubscribe, e-mail: yarn-issues-unsubscribe@hadoop.apache.org For additional commands, e-mail: yarn-issues-help@hadoop.apache.org