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From "Karthik Kambatla (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (YARN-2128) FairScheduler: Incorrect calculation of amResource usage
Date Sat, 07 Jun 2014 01:21:01 GMT

     [ https://issues.apache.org/jira/browse/YARN-2128?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

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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