Vijay Bhat commented on YARN-2976:

[~hitesh], I can take this on. Would your preference be for fixing the 
documentation or extending the current behavior? I would think it makes more 
sense to have a flexible configuration.

> Invalid docs for specifying 
> yarn.nodemanager.docker-container-executor.exec-name
> --------------------------------------------------------------------------------
>                 Key: YARN-2976
>                 URL: https://issues.apache.org/jira/browse/YARN-2976
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: documentation
>    Affects Versions: 2.6.0
>            Reporter: Hitesh Shah
>            Assignee: Vijay Bhat
>            Priority: Minor
> Docs on 
> http://hadoop.apache.org/docs/stable/hadoop-yarn/hadoop-yarn-site/DockerContainerExecutor.html
>  mention setting "docker -H=tcp://" for 
> yarn.nodemanager.docker-container-executor.exec-name. 
> However, the actual implementation does a fileExists for the specified value. 
> Either the docs need to be fixed or the impl changed to allow relative paths 
> or commands with additional args

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