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From Adarsh Sharma <adarsh.sha...@orkash.com>
Subject Re: Running not as "hadoop" user
Date Thu, 09 Dec 2010 06:50:17 GMT
Todd Lipcon wrote:
> 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
>>
>>     
>
>
>
>   
You may also set dfs.permissions = false and grant seperate groups to 
access HDFS through properties in hdfs.sites.xml

--Adarsh

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