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https://issues.apache.org/jira/browse/YARN-2155?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Wei Yan updated YARN-2155:
--------------------------
Description:
{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.
> FairScheduler: Incorrect check when trigger a 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
>
> {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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