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Master Mentor


Can you share your /etc/hosts from the 2 servers? many a time member forget very trivial things ib your /etc/hosts on should look like this don't comment localhost # This one

# The following lines are desirable for IPv6 capable hosts
::1 ip6-localhost ip6-loopback
fe00::0 ip6-localnet
ff00::0 ip6-mcastprefix
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters

# uVMU0X uvmu01 uvmu02 uvmu03


Assuming the Ambari server is firstly I would like you to check that the ambari server and agent are of the same version

# rpm -qa|grep ambari

On server

Thereafter share ensure you disabled the Firewall

$ sudo ufw disable

Confirm the Firewall stopped and disabled on system startup

$ sudo ufw status

$ sudo apt-get install ambari-agent


Share your ambari-agent.ini it should look like this on all nodes I even the one hosting Ambari I am wondering why your second server has in the Ambari-agent.ini????



$ ambari-agent start


Now go back to the Ambari UI and choose manual registration your should now register successfully

Please revert

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