Registering Ambari Cloudera Manager pair for source cluster
As a prerequisite, you must have an instance of Cloudera manager available and
running on a cluster.
One transition represents a single upgrade path from a base cluster to a target
cluster. A single Cloudera Migration Assistant (CMA) server is designed to handle
multiple upgrades of Ambari-Cloudera Manager Pairs.
The process starts with a
registration wizard, gathering all the cluster data into the
data directory, and then continues with the execution phase
where the collected data is used by Ansible scripts carrying out the required
upgrade steps.
On the left navigation pane, click New Cluster.
Select Source. Click Next.
Select the cluster type > enter the Ambari URL > admin user and admin password.
The admin user can be replaced with any other user who has the right to export
blueprint, stop, and start services. Click Next.
Select the cluster you want to upgrade.
Select the Configuration based on the authentication
method for your cluster.
Select Use existing if you want to use the SSH
configuration and keys from the existing CMA server to access the
hosts.
Select New if you want to use a newly provided
SSH key to configure the Ansible automatically.
Provide the SSH User.
Provide the SSH Port.
Copy the Private SSH Key to the SSH Key box
or upload a key file containing the key by clicking
Choose File.
Click Create
After the registration is successful, the HDP cluster registered under
Clusters.