From yarn-issues-return-108046-apmail-hadoop-yarn-issues-archive=hadoop.apache.org@hadoop.apache.org Thu Feb 16 21:35:45 2017 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 565E519AB3 for ; Thu, 16 Feb 2017 21:35:45 +0000 (UTC) Received: (qmail 40331 invoked by uid 500); 16 Feb 2017 21:35:45 -0000 Delivered-To: apmail-hadoop-yarn-issues-archive@hadoop.apache.org Received: (qmail 40282 invoked by uid 500); 16 Feb 2017 21:35:45 -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 40271 invoked by uid 99); 16 Feb 2017 21:35:45 -0000 Received: from pnap-us-west-generic-nat.apache.org (HELO spamd2-us-west.apache.org) (209.188.14.142) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 16 Feb 2017 21:35:45 +0000 Received: from localhost (localhost [127.0.0.1]) by spamd2-us-west.apache.org (ASF Mail Server at spamd2-us-west.apache.org) with ESMTP id A430F1A04F0 for ; Thu, 16 Feb 2017 21:35:44 +0000 (UTC) X-Virus-Scanned: Debian amavisd-new at spamd2-us-west.apache.org X-Spam-Flag: NO X-Spam-Score: -1.999 X-Spam-Level: X-Spam-Status: No, score=-1.999 tagged_above=-999 required=6.31 tests=[KAM_LAZY_DOMAIN_SECURITY=1, RP_MATCHES_RCVD=-2.999] autolearn=disabled Received: from mx1-lw-eu.apache.org ([10.40.0.8]) by localhost (spamd2-us-west.apache.org [10.40.0.9]) (amavisd-new, port 10024) with ESMTP id ZZUiUig0ZWEK for ; Thu, 16 Feb 2017 21:35:44 +0000 (UTC) Received: from mailrelay1-us-west.apache.org (mailrelay1-us-west.apache.org [209.188.14.139]) by mx1-lw-eu.apache.org (ASF Mail Server at mx1-lw-eu.apache.org) with ESMTP id 5ABBD5FB47 for ; Thu, 16 Feb 2017 21:35:43 +0000 (UTC) Received: from jira-lw-us.apache.org (unknown [207.244.88.139]) by mailrelay1-us-west.apache.org (ASF Mail Server at mailrelay1-us-west.apache.org) with ESMTP id 57564E073F for ; Thu, 16 Feb 2017 21:35:42 +0000 (UTC) Received: from jira-lw-us.apache.org (localhost [127.0.0.1]) by jira-lw-us.apache.org (ASF Mail Server at jira-lw-us.apache.org) with ESMTP id B6EC224125 for ; Thu, 16 Feb 2017 21:35:41 +0000 (UTC) Date: Thu, 16 Feb 2017 21:35:41 +0000 (UTC) From: "Yufei Gu (JIRA)" To: yarn-issues@hadoop.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Commented] (YARN-6175) Negative vcore for resource needed to preempt 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-6175?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15870730#comment-15870730 ] Yufei Gu commented on YARN-6175: -------------------------------- Uploaded patch v2 which is in line with YARN-6163. > Negative vcore for resource needed to preempt > --------------------------------------------- > > Key: YARN-6175 > URL: https://issues.apache.org/jira/browse/YARN-6175 > Project: Hadoop YARN > Issue Type: Bug > Components: fairscheduler > Affects Versions: 2.8.0 > Reporter: Yufei Gu > Assignee: Yufei Gu > Attachments: YARN-6175.001.patch, YARN-6175.002.patch > > > Both old preemption code (2.8 and before) and new preemption code could have negative vcores while calculating resources needed to preempt. > For old preemption, you can find following messages in RM logs: > {code} > Should preempt > {code} > The related code is in method {{resourceDeficit()}}. > For new preemption code, there are no messages in RM logs, the related code is in method {{fairShareStarvation()}}. > The negative value isn't only a display issue, but also may cause missing necessary preemption. -- This message was sent by Atlassian JIRA (v6.3.15#6346) --------------------------------------------------------------------- To unsubscribe, e-mail: yarn-issues-unsubscribe@hadoop.apache.org For additional commands, e-mail: yarn-issues-help@hadoop.apache.org