Bing Li 2012-02-06, 09:55
-Re: The Common Account for Hadoop
alo alt 2012-02-06, 10:19
check the rights of .ssh/authorized_keys on the hosts, have to be only read- and writable for the user (including directory)
Be sure you copied the right key without line-breaks and fragments. If you have a lot of boxes you could use BCFG2:
On Feb 6, 2012, at 10:55 AM, Bing Li wrote:
> 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
> 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 Li 2012-02-06, 11:23