Jian He commented on YARN-3187:

Thanks [~gururaj],  some comments on the patch:
- “To specify list of users, %user can be used.” — I feel list of users is not 
that accurate, how about “to specify whichever user, %user can be used”
- “To specify queue name same as user list, %user can be used.”  — how about 
“To specify queue name same as user name, %user can be used.”
- “To specify queue name same as primary group ” — “To specify queue name same 
as the name of  the primary group which user belongs to ”

> Documentation of Capacity Scheduler Queue mapping based on user or group
> ------------------------------------------------------------------------
>                 Key: YARN-3187
>                 URL: https://issues.apache.org/jira/browse/YARN-3187
>             Project: Hadoop YARN
>          Issue Type: Improvement
>          Components: capacityscheduler, documentation
>    Affects Versions: 2.6.0
>            Reporter: Naganarasimha G R
>            Assignee: Gururaj Shetty
>              Labels: documentation
>             Fix For: 2.6.0
>         Attachments: YARN-3187.1.patch, YARN-3187.2.patch, YARN-3187.3.patch
> YARN-2411 exposes a very useful feature {{support simple user and group 
> mappings to queues}} but its not captured in the documentation. So in this 
> jira we plan to document this feature

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