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https://issues.apache.org/jira/browse/YARN-2155?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14030524#comment-14030524
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Hudson commented on YARN-2155:
------------------------------
FAILURE: Integrated in Hadoop-Yarn-trunk #582 (See
[https://builds.apache.org/job/Hadoop-Yarn-trunk/582/])
YARN-2155. FairScheduler: Incorrect threshold check for preemption. (Wei Yan
via kasha) (kasha:
http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1602295)
* /hadoop/common/trunk/hadoop-yarn-project/CHANGES.txt
*
/hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/FairScheduler.java
*
/hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/TestFairSchedulerPreemption.java
> FairScheduler: Incorrect threshold check for preemption
> -------------------------------------------------------
>
> Key: YARN-2155
> URL: https://issues.apache.org/jira/browse/YARN-2155
> Project: Hadoop YARN
> Issue Type: Bug
> Reporter: Wei Yan
> Assignee: Wei Yan
> Fix For: 2.5.0
>
> Attachments: YARN-2155.patch
>
>
> {code}
> private boolean shouldAttemptPreemption() {
> if (preemptionEnabled) {
> return (preemptionUtilizationThreshold < Math.max(
> (float) rootMetrics.getAvailableMB() / clusterResource.getMemory(),
> (float) rootMetrics.getAvailableVirtualCores() /
> clusterResource.getVirtualCores()));
> }
> return false;
> }
> {code}
> preemptionUtilizationThreshould should be compared with allocatedResource
> instead of availableResource.
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