Vinod Kumar Vavilapalli commented on YARN-2070:

With some of the tickets under YARN-1935, the Server itself is going to start 
injecting a user-name that is the sole authority. Given that, should we 
consider dropping this completely?

> DistributedShell publishes unfriendly user information to the timeline server
> -----------------------------------------------------------------------------
>                 Key: YARN-2070
>                 URL: https://issues.apache.org/jira/browse/YARN-2070
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>            Reporter: Zhijie Shen
>            Assignee: Robert Kanter
>            Priority: Minor
>              Labels: newbie
>         Attachments: YARN-2070.patch
> Bellow is the code of using the string of current user object as the "user" 
> value.
> {code}
>     entity.addPrimaryFilter("user", UserGroupInformation.getCurrentUser()
>         .toString());
> {code}
> When we use kerberos authentication, it's going to output the full name, such 
> as "zjshen/localhost@LOCALHOST (auth.KERBEROS)". It is not user friendly for 
> searching by the primary filters. It's better to use shortUserName instead.

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