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From "Naganarasimha G R (JIRA)" <j...@apache.org>
Subject [jira] [Created] (YARN-4078) Unchecked typecast to AbstractYarnScheduler in AppInfo
Date Tue, 25 Aug 2015 05:06:46 GMT
Naganarasimha G R created YARN-4078:

             Summary: Unchecked typecast to AbstractYarnScheduler in AppInfo
                 Key: YARN-4078
                 URL: https://issues.apache.org/jira/browse/YARN-4078
             Project: Hadoop YARN
          Issue Type: Bug
          Components: resourcemanager
            Reporter: Naganarasimha G R
            Assignee: Naganarasimha G R
            Priority: Minor

Currently getPendingResourceRequestForAttempt is present in {{AbstractYarnScheduler}}.
*But in AppInfo,  we are calling this method by typecasting it to AbstractYarnScheduler, which
is incorrect.*

Because if a custom scheduler is to be added, it will implement YarnScheduler, not AbstractYarnScheduler.

This method should be moved to YarnScheduler or it should have a guarded check like in other
places (RMAppAttemptBlock.getBlackListedNodes) 

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