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https://issues.apache.org/jira/browse/YARN-897?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13713991#comment-13713991
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Hadoop QA commented on YARN-897:
--------------------------------
{color:green}+1 overall{color}. Here are the results of testing the latest
attachment
http://issues.apache.org/jira/secure/attachment/12593228/YARN-897-3.patch
against trunk revision .
{color:green}+1 @author{color}. The patch does not contain any @author
tags.
{color:green}+1 tests included{color}. The patch appears to include 2 new
or modified test files.
{color:green}+1 javac{color}. The applied patch does not increase the
total number of javac compiler warnings.
{color:green}+1 javadoc{color}. The javadoc tool did not generate any
warning messages.
{color:green}+1 eclipse:eclipse{color}. The patch built with
eclipse:eclipse.
{color:green}+1 findbugs{color}. The patch does not introduce any new
Findbugs (version 1.3.9) warnings.
{color:green}+1 release audit{color}. The applied patch does not increase
the total number of release audit warnings.
{color:green}+1 core tests{color}. The patch passed unit tests in
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager.
{color:green}+1 contrib tests{color}. The patch passed contrib unit tests.
Test results:
https://builds.apache.org/job/PreCommit-YARN-Build/1534//testReport/
Console output: https://builds.apache.org/job/PreCommit-YARN-Build/1534//console
This message is automatically generated.
> CapacityScheduler wrongly sorted queues
> ---------------------------------------
>
> Key: YARN-897
> URL: https://issues.apache.org/jira/browse/YARN-897
> Project: Hadoop YARN
> Issue Type: Bug
> Components: capacityscheduler
> Affects Versions: 2.0.4-alpha
> Reporter: Djellel Eddine Difallah
> Priority: Blocker
> Attachments: TestBugParentQueue.java, YARN-897-1.patch,
> YARN-897-2.patch, YARN-897-3.patch
>
>
> The childQueues of a ParentQueue are stored in a TreeSet where UsedCapacity
> defines the sort order. This ensures the queue with least UsedCapacity to
> receive resources next. On containerAssignment we correctly update the order,
> but we miss to do so on container completions. This corrupts the TreeSet
> structure, and under-capacity queues might starve for resources.
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