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Posted to common-user@hadoop.apache.org by springring <sp...@126.com> on 2011/03/23 07:19:41 UTC

Is there "useradd" in Hadoop

Hi,

    There are "chmod"、"chown"、"chgrp" in HDFS,
is there some command like "useradd -g" to add a 
user in a group,? Even more, is there  "hadoop's
group", not "linux's group"?


Ring

Re: Is there "useradd" in Hadoop

Posted by Brian Bockelman <bb...@cse.unl.edu>.

In .20 and later, user and group information is taken from the NN's OS.

There is no useradd or groupadd.

Brian

On Mar 23, 2011, at 1:19 AM, springring wrote:

> Hi,
> 
>    There are "chmod"、"chown"、"chgrp" in HDFS,
> is there some command like "useradd -g" to add a 
> user in a group,? Even more, is there  "hadoop's
> group", not "linux's group"?
> 
> 
> Ring