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Posted to yarn-issues@hadoop.apache.org by "Naganarasimha G R (JIRA)" <ji...@apache.org> on 2015/08/25 07:06:46 UTC

[jira] [Created] (YARN-4078) Unchecked typecast to AbstractYarnScheduler in AppInfo

Naganarasimha G R created YARN-4078:
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             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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