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From "Daniel Templeton (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (YARN-4421) Remove dea code in RmAppImpl.RMAppRecoveredTransition
Date Fri, 04 Dec 2015 17:06:10 GMT

     [ https://issues.apache.org/jira/browse/YARN-4421?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Daniel Templeton updated YARN-4421:
-----------------------------------
    Attachment: YARN-4421.001.patch

> Remove dea code in RmAppImpl.RMAppRecoveredTransition
> -----------------------------------------------------
>
>                 Key: YARN-4421
>                 URL: https://issues.apache.org/jira/browse/YARN-4421
>             Project: Hadoop YARN
>          Issue Type: Improvement
>          Components: resourcemanager
>            Reporter: Daniel Templeton
>            Assignee: Daniel Templeton
>            Priority: Minor
>         Attachments: YARN-4421.001.patch
>
>
> The {{transition()}} method contains the following:
> {code}
>       // Last attempt is in final state, return ACCEPTED waiting for last
>       // RMAppAttempt to send finished or failed event back.
>       if (app.currentAttempt != null
>           && (app.currentAttempt.getState() == RMAppAttemptState.KILLED
>               || app.currentAttempt.getState() == RMAppAttemptState.FINISHED
>               || (app.currentAttempt.getState() == RMAppAttemptState.FAILED
>                   && app.getNumFailedAppAttempts() == app.maxAppAttempts))) {
>         return RMAppState.ACCEPTED;
>       }
>       // YARN-1507 is saving the application state after the application is
>       // accepted. So after YARN-1507, an app is saved meaning it is accepted.
>       // Thus we return ACCECPTED state on recovery.
>       return RMAppState.ACCEPTED;
> {code}
> The {{if}} statement is fully redundant and can be eliminated.



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