Allen Wittenauer commented on YARN-2718:

I don't think creating some sort of mutant executor is really the proper fix 
here.  I suspect the real answer is to allow users to pick which executor (from 
an admin approved list) is probably closer (and quicker!) to the real goal.

But the bigger issue is that this will lead to some very weird and 
unpredictable administrative experiences.  It also means that users will be 
given even more impact on how the NM actually works.  This is a bit of a 
dangerous road to start heading...

> Create a CompositeConatainerExecutor that combines DockerContainerExecutor 
> and DefaultContainerExecutor
> -------------------------------------------------------------------------------------------------------
>                 Key: YARN-2718
>                 URL: https://issues.apache.org/jira/browse/YARN-2718
>             Project: Hadoop YARN
>          Issue Type: New Feature
>            Reporter: Abin Shahab
> There should be a composite container that allows users to run their jobs in 
> DockerContainerExecutor, but switch to DefaultContainerExecutor for debugging 
> purposes.

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