[jira] [Updated] (YARN-4547) LeafQueue#getApplications() is read-only interface, but it provides reference to caller

["Rohith Sharma K S (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/YARN-4547?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Rohith Sharma K S updated YARN-4547:
------------------------------------
    Summary: LeafQueue#getApplications() is read-only interface, but it provides reference to caller  (was: LeagQueue#getApplications() is read-only interface, but it provides reference to caller)

> LeafQueue#getApplications() is read-only interface, but it provides reference to caller
> ---------------------------------------------------------------------------------------
>
>                 Key: YARN-4547
>                 URL: https://issues.apache.org/jira/browse/YARN-4547
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: capacity scheduler
>            Reporter: Rohith Sharma K S
>            Assignee: Rohith Sharma K S
>
> The below API is read-only interface, but returning reference to the caller. This causing caller to modify the orderingPolicy entities. If required reference of ordering policy, caller can use {{LeagQueue#getOrderingPolicy()#getSchedulableEntities()}}
> The returning object should be clone of orderingPolicy.getSchedulableEntities()
> {code}
>   /**
>    * Obtain (read-only) collection of active applications.
>    */
>   public Collection<FiCaSchedulerApp> getApplications() {
>     return orderingPolicy.getSchedulableEntities();
>   }
> {code}



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