bin/start-all.sh tries to log into ssh and asks for password

[Ben Kucinich <be...@gmail.com>]

I was following this article at
http://wiki.apache.org/hadoop/GettingStartedWithHadoop word by word. I could
do everything till the section "Formatting the Namenode".

But in "Starting a Single node cluster", when I did, bin/start-all.sh, it
tries to log in to my own system using ssh and asks for password. When I
enter the password, it says JAVA_HOME not found.

How can I avoid this? One thing I could figure out is that if I supress this
password prompt by setting up ~/.ssh/authorized_keys, it can log in and
start the daemon. But is this a good solution. Any one else has faced this
problem and is there a better solution?

RE: bin/start-all.sh tries to log into ssh and asks for password

[Xavier Stevens <Xa...@fox.com>]

Setting up SSH keys is the way to go.  If you are looking for a good
tutorial I recommend the one on Michael Noll's site:

http://www.michael-noll.com/wiki/Running_Hadoop_On_Ubuntu_Linux_(Single-
Node_Cluster)

-Xavier


-----Original Message-----
From: Ben Kucinich [mailto:benkucinich@gmail.com] 
Sent: Thursday, February 07, 2008 10:40 AM
To: core-user@hadoop.apache.org
Subject: bin/start-all.sh tries to log into ssh and asks for password

I was following this article at
http://wiki.apache.org/hadoop/GettingStartedWithHadoop word by word. I
could do everything till the section "Formatting the Namenode".

But in "Starting a Single node cluster", when I did, bin/start-all.sh,
it tries to log in to my own system using ssh and asks for password.
When I enter the password, it says JAVA_HOME not found.

How can I avoid this? One thing I could figure out is that if I supress
this password prompt by setting up ~/.ssh/authorized_keys, it can log in
and start the daemon. But is this a good solution. Any one else has
faced this problem and is there a better solution?

Re: bin/start-all.sh tries to log into ssh and asks for password

[Ted Dunning <td...@veoh.com>]

This is the preferred solution and works very well.


On 2/7/08 10:39 AM, "Ben Kucinich" <be...@gmail.com> wrote:

> setting up ~/.ssh/authorized_keys, it can log in and
> start the daemon. But is this a good solution. Any one else has faced this
> problem and is there a better solution?