Wei Yan updated YARN-2194:
    Attachment: YARN-2194-1.patch

A prelim patch that implements the systemd-based cpu resource isolation for 
Redhat 7.
A summary:
(1) Create a new resource handler SystemdLCEResourceHandler. Users can use this 
handle by configuring the field 
(2) For each container, create one slice and one scope. The scope is put inside 
the slice, and cpuShare isolation is also attached to the slice.  All 
container's slices are organized in a root slice (named "hadoop_yarn.slice" in 

Will add some testcases later.

> 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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