[jira] [Created] (SPARK-5495) Offer user the ability to kill application in master web UI for standalone mode

["Saisai Shao (JIRA)" <ji...@apache.org>]

Saisai Shao created SPARK-5495:
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             Summary: Offer user the ability to kill application in master web UI for standalone mode
                 Key: SPARK-5495
                 URL: https://issues.apache.org/jira/browse/SPARK-5495
             Project: Spark
          Issue Type: New Feature
          Components: Web UI
            Reporter: Saisai Shao


For cluster admins or users who manage the whole cluster need to have the ability to kill the dangling or long-running applications through simple ways. 

For examples, if user started with a spark-shell for a long time but actually is pending without any job running. In this scenario, it is better for the admins to kill that apps to free the resources.

Currently Spark user can kill the stage in driver UI, but not application. So here I'd propose to add a function to kill the application in master web UI for standalone mode.

The snapshot of function shows as below:

!https://dl.dropboxusercontent.com/u/19230832/master_ui.png!

Add a kill action for each active application, kill here to simply stop the specific application.




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