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Posted to common-user@hadoop.apache.org by "Puri, Aseem" <As...@Honeywell.com> on 2009/04/17 08:24:41 UTC

Problem with using differnt username

Hi

            I am running Hadoop Cluster on windows. I have 4 datnodes. 3
data node have same username so they always start. But one datanode have
different username. When I run command $bin/start-all.sh master tries to
find $bin/Hadoop-demon.sh giving master username instead of username in
which file is there. Please where should I make change so master find
file on the different user name.

 

Thanks & Regards

Aseem Puri

Project Trainee

Honeywell Technology Solutions Lab

Bangalore

 


Re: Problem with using differnt username

Posted by Alex Loddengaard <al...@cloudera.com>.
I don't think you can tell start-all.sh to log in as a different user on
certain nodes.  Why not just create the same user on the fourth node?

An alternative would be to start the fourth node manually via
hadoop-daemon.sh script.  Here's an example:

bin/hadoop-daemon.sh start datanode
bin/hadoop-daemon.sh start tasktracker

Those commands should be run on the fourth node.  This allows you to bypass
the SSH step that start-all.sh does.

Alex

On Thu, Apr 16, 2009 at 11:24 PM, Puri, Aseem <As...@honeywell.com>wrote:

> Hi
>
>            I am running Hadoop Cluster on windows. I have 4 datnodes. 3
> data node have same username so they always start. But one datanode have
> different username. When I run command $bin/start-all.sh master tries to
> find $bin/Hadoop-demon.sh giving master username instead of username in
> which file is there. Please where should I make change so master find
> file on the different user name.
>
>
>
> Thanks & Regards
>
> Aseem Puri
>
> Project Trainee
>
> Honeywell Technology Solutions Lab
>
> Bangalore
>
>
>
>