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https://issues.apache.org/jira/browse/YARN-2128?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Karthik Kambatla updated YARN-2128:
-----------------------------------
Summary: FairScheduler: Incorrect calculation of amResource usage (was:
SchedulerApplicationAttempt's amResource should be normalized and FSLeafQueue's
amResourceUsage should be updated correctly)
> FairScheduler: Incorrect calculation of amResource usage
> --------------------------------------------------------
>
> Key: YARN-2128
> URL: https://issues.apache.org/jira/browse/YARN-2128
> Project: Hadoop YARN
> Issue Type: Bug
> Reporter: Wei Yan
> Assignee: Wei Yan
> Attachments: YARN-2128.patch, YARN-2128.patch
>
>
> 1. The amResource should be normalized instead of fetching from
> ApplicationSubmissionContext directly.
> {code}
> ApplicationSubmissionContext appSubmissionContext =
> rmContext.getRMApps().get(applicationAttemptId.getApplicationId())
> .getApplicationSubmissionContext();
> if (appSubmissionContext != null) {
> amResource = appSubmissionContext.getResource();
> unmanagedAM = appSubmissionContext.getUnmanagedAM();
> }
> {code}
> 2. When one application is removed, the FSLeafQueue's amResourceUsage should
> be updated only if the app has started its AM.
> {code}
> if (runnableAppScheds.remove(app.getAppSchedulable())) {
> // Update AM resource usage
> if (app.getAMResource() != null) {
> Resources.subtractFrom(amResourceUsage, app.getAMResource());
> }
> return true;
> }
> {code}
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