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From "Karthik Kambatla (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (YARN-3691) FairScheduler: Limit number of reservations for a container
Date Wed, 20 May 2015 19:56:00 GMT

     [ https://issues.apache.org/jira/browse/YARN-3691?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Karthik Kambatla updated YARN-3691:
-----------------------------------
    Summary: FairScheduler: Limit number of reservations for a container  (was: Limit number
of reservations for an app)

> FairScheduler: Limit number of reservations for a container
> -----------------------------------------------------------
>
>                 Key: YARN-3691
>                 URL: https://issues.apache.org/jira/browse/YARN-3691
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: fairscheduler
>            Reporter: Arun Suresh
>            Assignee: Arun Suresh
>
> Currently, It is possible to reserve resource for an app on all nodes. Limiting this
to possibly just a number of nodes (or a ratio of the total cluster size) would improve utilization
of the cluster and will reduce the possibility of starving other apps.



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