Allen Wittenauer commented on YARN-5366:

And another question:

Why are we even using container-executor for this and some of these other 
docker commands?  If yarn is in the docker group, we shouldn't need privilege 
at all to run docker.

> Add support for toggling the removal of completed and failed docker containers
> ------------------------------------------------------------------------------
>                 Key: YARN-5366
>                 URL: https://issues.apache.org/jira/browse/YARN-5366
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: yarn
>            Reporter: Shane Kumpf
>            Assignee: Shane Kumpf
>         Attachments: YARN-5366.001.patch, YARN-5366.002.patch, 
> YARN-5366.003.patch, YARN-5366.004.patch, YARN-5366.005.patch, 
> YARN-5366.006.patch
> Currently, completed and failed docker containers are removed by 
> container-executor. Add a job level environment variable to 
> DockerLinuxContainerRuntime to allow the user to toggle whether they want the 
> container deleted or not and remove the logic from container-executor.

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