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MapReduce >> mail # user >> Configuring SSH - is it required? for a psedo distriburted mode?


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Re: Configuring SSH - is it required? for a psedo distriburted mode?
I never configure the ssh feature.
Not for running on a single node and not for a full size cluster.
I simply start all the required deamons (name/data/job/task) and configure
them on which ports each can be reached.

Niels Basjes
 On May 16, 2013 4:55 PM, "Raj Hadoop" <[EMAIL PROTECTED]> 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
>
>