Remus Rusanu updated YARN-2129:

    Attachment: YARN-2129.1.patch

Take 1. This implementation, leveraging the cmd.exe start [/LOW|/HIGH| /NORMAL] 
/WAIT /B command line options, works fine except for the fact that, unlike *nix 
nice, the Windows processes do *not* inherit the priority class except for 
lower priorites ([/LOW|/BELOWNORMAL]). Which means that the cmd cotnainer 
script gets the priority boost, but not the actual java process running the 
task. The localizer gets the priority boost proper, but that's does not really 

I'll take a second stab at it and try to move the priority set to the actual 
java launch, around ContainerLaunch.writeLaunchEnv() and 
ContainerLaunch.WindowsShellScriptBuilder et all.

> Add scheduling priority to the WindowsSecureContainerExecutor
> -------------------------------------------------------------
>                 Key: YARN-2129
>                 URL: https://issues.apache.org/jira/browse/YARN-2129
>             Project: Hadoop YARN
>          Issue Type: Improvement
>          Components: nodemanager
>    Affects Versions: 3.0.0
>            Reporter: Remus Rusanu
>            Assignee: Remus Rusanu
>              Labels: security, windows
>         Attachments: YARN-2129.1.patch
> The WCE (YARN-1972) could and should honor 

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