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From "Suma Shivaprasad (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-7643) Handle recovery of applications on auto-created leaf queues
Date Wed, 13 Dec 2017 02:36:01 GMT

    [ https://issues.apache.org/jira/browse/YARN-7643?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16288627#comment-16288627

Suma Shivaprasad commented on YARN-7643:

1) Why AbstractCSQueue changes required? (And it doesn't look correct for queue refresh cases.)
Earlier to this fix , the global scheduler configuration for enabling user metrics "yarn.scheduler.capacity.user-metrics.enable"
was taken from queue specific configuration instead of scheduler CapacitySchedulerContext.configuration
which was incorrect. 

TestWorkPreservingRMRestart.checkCSQueue has validations to check userMetrics and this step
fails without this change
 // ************ check user metrics ***********
    QueueMetrics userMetrics =
    assertMetrics(userMetrics, 1, 0, 1, 0, 2, availableResources.getMemorySize(),
        availableResources.getVirtualCores(), usedResource.getMemorySize(),
{quote} 2) Several places need to reformat in CapacityScheduler#addApplicationOnRecovery,
like too long line, blank lines, etc. Could you take care of them? {quote}
Will fix

> Handle recovery of applications on auto-created leaf queues
> -----------------------------------------------------------
>                 Key: YARN-7643
>                 URL: https://issues.apache.org/jira/browse/YARN-7643
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: capacity scheduler
>            Reporter: Suma Shivaprasad
>            Assignee: Suma Shivaprasad
>         Attachments: YARN-7643.1.patch
> CapacityScheduler application recovery should auto-create leaf queue if it doesnt exist.
Also RMAppManager needs to set the queue-mapping placement context so that scheduler has necessary
placement context to recreate the queue

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