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Date: Thu, 10 Nov 2016 07:43:01 +0000 (UTC)
From: "Karthik Kambatla (JIRA)" <jira@apache.org>
To: yarn-issues@hadoop.apache.org
Message-ID: <JIRA.12993745.1469894026000.240647.1478763781150@Atlassian.JIRA>
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References: <JIRA.12993745.1469894026000@Atlassian.JIRA> <JIRA.12993745.1469894026911@arcas>
Subject: [jira] [Commented] (YARN-5453) FairScheduler#update may skip update
 demand resource of child queue/app if current demand reached maxResource
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archived-at: Thu, 10 Nov 2016 07:43:03 -0000


    [ https://issues.apache.org/jira/browse/YARN-5453?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15653324#comment-15653324 ] 

Karthik Kambatla commented on YARN-5453:
----------------------------------------

+1. Checking this in..

> FairScheduler#update may skip update demand resource of child queue/app if current demand reached maxResource
> -------------------------------------------------------------------------------------------------------------
>
>                 Key: YARN-5453
>                 URL: https://issues.apache.org/jira/browse/YARN-5453
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: fairscheduler
>            Reporter: sandflee
>            Assignee: sandflee
>              Labels: oct16-easy
>         Attachments: YARN-5453.01.patch, YARN-5453.02.patch, YARN-5453.03.patch, YARN-5453.04.patch, YARN-5453.05.patch
>
>
> {code}
>       demand = Resources.createResource(0);
>       for (FSQueue childQueue : childQueues) {
>         childQueue.updateDemand();
>         Resource toAdd = childQueue.getDemand();
>         demand = Resources.add(demand, toAdd);
>         demand = Resources.componentwiseMin(demand, maxRes);
>         if (Resources.equals(demand, maxRes)) {
>           break;
>         }
>       }
> {code}
> if one singe queue's demand resource exceed maxRes,  the other queue's demand resource will not update.


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