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From Todd Lipcon <t...@cloudera.com>
Subject Re: Running not as "hadoop" user
Date Thu, 09 Dec 2010 06:43:46 GMT
The user who started the NN has superuser privileges on HDFS.

You can also configure a supergroup by setting
dfs.permissions.supergroup (default "supergroup")

-Todd

On Wed, Dec 8, 2010 at 9:34 PM, Mark Kerzner <markkerzner@gmail.com> wrote:
> Hi,
>
> "hadoop" user has some advantages for running Hadoop. For example, if HDFS
> is mounted as a local file system, then only user "hadoop" has write/delete
> permissions.
>
> Can this privilege be given to another user? In other words, is this
> "hadoop" user hard-coded, or can another be used in its stead?
>
> Thank you,
> Mark
>



-- 
Todd Lipcon
Software Engineer, Cloudera

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