I have a 5 nodes cluster on which HDP 2.0 CP is installed. There are on Amazon EC2. But there is no proper GUI to see the hadoop NNs & DNs and there is a need to monitor them. I proposed we should use Ambari to get a GUI.
Now, when I was given the task, i installed Ambari server on NN(Master), did password-less SSH, temporarily disable SELINUX(setenforce 0) etc.. Now I am able to ssh to other nodes without a password. But when I am trying to register the other nodes, to automatically install ambari-agent, I am always getting error “Registration to the server failed” & getting a frequent warning “WARN nio:651 – javax.net.ssl.SSLException: Received fatal alert: unknown_ca”. Please help me. I have been trying since yesterday.
Is it that we cannot install Ambari on top of HDP 2.0 CP to get a GUI? Am i on the wrong track?