You can create a new CDH cluster by exporting a cluster template from an
existing CDH cluster managed by Cloudera Manager. You can then modify the template and use it to
create new clusters with the same configuration on a new set of hosts.
Use cluster templates to:
- Duplicate clusters for use in developer, test, and production environments.
- Quickly create a cluster for a specific workload.
- Reproduce a production cluster for testing and debugging.
Follow these general steps and refer to the following tasks to create a template and a
new cluster:
-
Export the cluster configuration from the source cluster. The exported configuration is
a JSON file that details all of the configurations of the cluster. The JSON file includes
an
instantiator section that contains some values you must provide before
creating the new cluster. - Set up the hosts for the new cluster by installing Cloudera Manager agents and the
JDK on all hosts. For secure clusters, also configure a Kerberos key distribution center
(KDC) in Cloudera Manager.
- Create any local repositories required for the cluster.
See Step
1: Configure a Repository for Cloudera Manager.
- Complete the
instantiator section of the cluster configuration
JSON document to create a template. - Import the cluster template to the new cluster.
