Thanks Harsh. That is a very good explanation.
I am trying to understand how in a production cluster, hadoop user and hadoop
clients would be.
What users should exist in NN, JT, DN ?
Regards,
Rajendra
________________________________
From: Harsh J <ha...@cloudera.com>
To: "<user@hadoop.apache.org>" <user@hadoop.apache.org>
Sent: Thursday, August 29, 2013 1:25 AM
Subject: Re: Hadoop client user
The user1 will mainly require a home directory on the HDFS, created by
the HDFS administrator user ('hadoop' in your case): sudo -u hadoop
hadoop fs -mkdir /user/user1; sudo -u hadoop hadoop fs -chown
user1:user1 /user/user1. After this, the user should be able to run
jobs and manipulate files in their own directory.
On Thu, Aug 29, 2013 at 10:21 AM, Hadoop Raj <hadoop...@yahoo.com> wrote:
> Hi,
>
> I have a hadoop learning environment on a pseudo distributed mode. It is
> owned by the user 'hadoop'.
>
> I am trying to get an understanding on how can another user on this box can
> act as a Hadoop client and able to create HDFS files and run Map Reduce jobs.
> Say I have a Linux user 'user1'.
>
> What permissions , privileges and configuration settings are required for
> 'user1' to act as a Hadoop client?
>
> Thanks,
> Raj
--
Harsh J
