[jira] [Updated] (YARN-540) Race condition causing RM to potentially relaunch already unregistered AMs on RM restart

["Vinod Kumar Vavilapalli (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/YARN-540?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Vinod Kumar Vavilapalli updated YARN-540:
-----------------------------------------

    Summary: Race condition causing RM to potentially relaunch already unregistered AMs on RM restart  (was: RM state store not cleaned if job succeeds but RM shutdown and restart-dispatcher stopped before it can process REMOVE_APP event)
    
> Race condition causing RM to potentially relaunch already unregistered AMs on RM restart
> ----------------------------------------------------------------------------------------
>
>                 Key: YARN-540
>                 URL: https://issues.apache.org/jira/browse/YARN-540
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: resourcemanager
>            Reporter: Jian He
>            Assignee: Jian He
>            Priority: Blocker
>         Attachments: YARN-540.patch, YARN-540.patch
>
>
> When job succeeds and successfully call finishApplicationMaster, RM shutdown and restart-dispatcher is stopped before it can process REMOVE_APP event. The next time RM comes back, it will reload the existing state files even though the job is succeeded

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