Wei Yan commented on YARN-2194:

Thanks your comments, [~beckham007].
bq. startSystemdSlice/stopSystemdSlice needs root privilege?
Yes, "systemctl start/stop slice" needs root privilege.
bq. Let container-executor to run "sudo systemctl start "?
You mean adding start/stop slice function in the container-executor, and let 
SystemdLCEResourceHandler invokes these functions?

> Add Cgroup support for RedHat 7
> -------------------------------
>                 Key: YARN-2194
>                 URL: https://issues.apache.org/jira/browse/YARN-2194
>             Project: Hadoop YARN
>          Issue Type: Improvement
>            Reporter: Wei Yan
>            Assignee: Wei Yan
>         Attachments: YARN-2194-1.patch
> In previous versions of RedHat, we can build custom cgroup hierarchies with 
> use of the cgconfig command from the libcgroup package. From RedHat 7, 
> package libcgroup is deprecated and it is not recommended to use it since it 
> can easily create conflicts with the default cgroup hierarchy. The systemd is 
> provided and recommended for cgroup management. We need to add support for 
> this.

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