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Date: Wed, 21 Jan 2009 17:57:19 +0530
Message-ID: <547db2260901210427r5bef38es1b206524f677c90e@mail.gmail.com>
Subject: Re: Why does Hadoop need ssh access to master and slaves?
From: "Amit k. Saha" <amitsaha.in@gmail.com>
To: core-user@hadoop.apache.org
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On Wed, Jan 21, 2009 at 5:53 PM, Matthias Scherer
<Matthias.Scherer@1und1.de> wrote:
> Hi all,
>
> we've made our first steps in evaluating hadoop. The setup of 2 VMs as a
> hadoop grid was very easy and works fine.
>
> Now our operations team wonders why hadoop has to be able to connect to
> the master and slaves via password-less ssh?! Can anyone give us an
> answer to this question?

1. There has to be a way to connect to the remote hosts- slaves and a
secondary master, and SSH is the secure way to do it
2. It has to be password-less to enable automatic logins

-Amit


>
> Thanks & Regards
> Matthias
>


-- 
Amit Kumar Saha
http://amitksaha.blogspot.com
http://amitsaha.in.googlepages.com/
*Bangalore Open Java Users Group*:http:www.bojug.in