Cloudera Docs

Prerequisites for adding classic clusters

Make sure you verify the version requirements of your classic clusters and install or configure all of the classic cluster requirements before you try to add or register them to Cloudera.

Required roles

You need to have the ClassicClustersCreator role to register a classic cluster in Cloudera.

Check the version compatibility

Make sure that the following version requirements are met.

  • For adding HDP clusters:
    • HDP - HDP 2.6.5.50000 plus any required patch version
    • DLM Engine version - 1.7.0.0-x
    • Ambari - 2.7.3 or 2.6.2.2 or 2.6.2
  • For adding CDH clusters:
    • CDH - 5.x and 6.x
    • Cloudera Manager - 5.x and 6.x
  • For adding Cloudera Private Cloud Base clusters
    • Cloudera Private Cloud Base cluster 7.1.1 or later, and its respective Cloudera Manager version; For example, Cloudera Private Cloud Base cluster 7.1.6 uses Cloudera Manager 7.3.1.

Verify the required roles are assigned

  • Make sure that the user can log in as the admin user to Ambari in the HDP cluster.

  • Make sure the user can log in as the admin user to Cloudera Manager in the CDH cluster or the Cloudera Private Cloud Base cluster.

Install the required components (HDP only)

Fulfill the following requirements if using HDP. If using CDH or Cloudera Private Cloud Base, skip this section.

  • Make sure that Ambari Metrics is installed in Ambari in the HDP clusters.
  • Make sure that Ambari is configured with LDAP.
  • Make sure that Knox is installed and the default topology is configured with LDAP.
  • Make sure that there is at least one topology in the Knox setup with the same LDAP as Ambari.
  • If there are policies restricting access through Knox, make sure that Ranger policies allow communication through Knox.
  • Make sure that the cluster is configured with Kerberos.
  • Make sure that the user credential used for registering the classic cluster is a valid LDAP user with an admin role in Ambari.

Open ports for Cluster Connectivity Manager

Ensure that outgoing traffic is allowed on the port range 443 on the legacy CDH, HDP, or Cloudera Private Cloud Base cluster.

After making sure that your clusters meet all the requirements, you can add your CDH, HDP, and Cloudera Private Cloud Base clusters to Cloudera.