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From Bing Li <lbl...@gmail.com>
Subject The Common Account for Hadoop
Date Mon, 06 Feb 2012 09:55:14 GMT
Dear all,

I am just starting to learn Hadoop. According to the book, Hadoop in
Action, a common account for each server (masters/slaves) must be created.

Moreover, I need to create a public/private rsa key pair as follows.

    ssh-keygen -t rsa

Then, id_rsa and id_rsa.pub are put under $HOME/.ssh.

After that, the public key is distributed to other nodes and saved in
@HOME/.ssh/authorized_keys.

According to the book (Page 27), I can login in a remote target with the
following command.

    ssh target (I typed IP address here)

However, according to the book, no password is required to sign in the
target. On my machine, it is required to type password each time.

Any affects for my future to configure Hadoop? What's wrong with my work?

Thanks so much!
Bing

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