You can create a new cluster by exporting a cluster
template from an existing 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:
You can only import
a cluster template to create a new cluster that is running the same
version of Cloudera Runtime as the cluster from which the template was
exported.
-
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.
