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From kishore alajangi <alajangikish...@gmail.com>
Subject Re: Configuring SSH - is it required? for a psedo distriburted mode?
Date Thu, 16 May 2013 15:21:55 GMT
When you start the hadoop procecess, each process will ask the password to
start, to overcome this we will configure SSH if you use single node or
multiple nodes for each process, if you can enter the password for each
process Its not a mandatory even if you use multiple systems.


On Thu, May 16, 2013 at 8:24 PM, Raj Hadoop <hadoopraj@yahoo.com> wrote:

>  Hi,
> I have a dedicated user on Linux server for hadoop. I am installing it in
> psedo distributed mode on this box. I want to test my programs on this
> machine. But i see that in installation steps - they were mentioned that
> SSH needs to be configured. If it is single node, I dont require it
> ...right? Please advise.
> I was looking at this site
> http://www.michael-noll.com/tutorials/running-hadoop-on-ubuntu-linux-single-node-cluster/
> It menionted like this -
> "
> Hadoop requires SSH access to manage its nodes, i.e. remote machines plus
> your local machine if you want to use Hadoop on it (which is what we want
> to do in this short tutorial). For our single-node setup of Hadoop, we
> therefore need to configure SSH access to localhost for the hduser user
> we created in the previous section.
> "
> Thanks,
> Raj

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