Cloudera Docs

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.

  1. On the left navigation pane, click New Cluster.
  2. Select Source. Click Next.
  3. 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.
  4. Select the cluster you want to upgrade.
  5. 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.
      1. Provide the SSH User.
      2. Provide the SSH Port.
      3. Copy the Private SSH Key to the SSH Key box or upload a key file containing the key by clicking Choose File.
      4. Click Create
    After the registration is successful, the HDP cluster registered under Clusters.