Exhausted available authentication methods

[#1]

Hi,

I am trying to install Cloudera using root user as login user and SSH port 22 but and localhost for IP Adress and I am getting the error : "Installation failed". Failed to autheticate, details: "Exhausted available authentication methods".

Could you please tell me how can I solve the issue?

Thanks a lot,

Regards,

[#2]

This could be of two reason, one is the mis match of RSA public / private keys in the master / slave nodes

check their 

permission
owner 
like 
chmod 
chown 

id_rsa
authorized_keys
id_rsa.pub

Reason 2 . 

Check your iptable / Firewall settings 

 - see if it is up and runining or not 

Reason 3

check the /etc/hosts files in all the node 
check the /etc/sysconfig/network
hostname

Please let me know if that helps or not .we should be able to troubleshoot .

I resolved this error a couple of weeks back. 

[#3]

Thanks, Could you please specifiy how to check the iptable and which are the parameters I should have?
Thanks a lot,
Regards

[#4]

How can I know the IP that I have to set in the host file? Thanks!

[#5]

What configurations are you going peform

single node cluster or multi node cluster .

Usually can define your own ip for your hosts like below for example

in the /etc/hosts file using vi editor

master 192.168.200.221
slave1  192.168.200.222
slave2   192.168.200.223

[#6]

This is quite common issue while installing CDH.However it is so easy to resolve it.

This is the issue with ssh.

You need to edit the  /etc/ssh/sshd_config   file by changing below parameter :-

PermitRootLogin yes

Now restart ssh service : sudo service ssh restart

Now Select root to login as below

click on Continue

Your issue will be resolved.

Thanks,

Solomonchinni

[#7]

systemctl status firewalld

if you see active then your firewall is ON.

to switch off the Firewall perform

systemctl stop firewalld

finally perform this to disable even during boot of your operating system

systemctl disable firewalld

[#8]

There must be a problem with your ssh-keys.
1. Generate ssh-key (public and private)
2. Copy id_rsa.pub content to authorized_keys
3. Change authorized_keys permissions to 600
4. Copy the id_ras.pub key content to the other nodes authorized_keys

Then try again

P.S: It will work only, when you use associated used with above keys

[#9]

Thanks, I have already done this task twice and the status is exactly the same. Is there a way to know which is the IP that I have to set in the IP file?
Thanks again,

[#10]

IP file..?
If it is regarding iptables. You can check this by doing "iptables -L" as root.

Note: Firewall and iptables should be disabled while installing CDH