Step 3: Set Up a Cluster Using the Wizard
After completing the Cluster Installation wizard, the Cluster Setup wizard automatically starts. The following sections guide you through each page of the wizard.
Select Services
The Select Services page allows you to select the services you want to install and configure. Make sure that you have the appropriate license key for the services you want to use.
You can choose from:
Regular (Base) Clusters
- Data Engineering
- Process develop, and serve predictive models.
- Data Mart
- Browse, query, and explore your data in an interactive way.
- Operational Database
- Real-time insights for modern data-driven business.
- Custom Services
- Choose your own services. Services required by chosen services will automatically be included.
Compute Clusters
- Data Engineering
- Process develop, and serve predictive models.
- Spark
- Spark for Compute
- Data Mart
- Impala for Compute
- Streams Messaging (Simple)
- Simple Kafka cluster for streams messaging
- Streams Messaging (Full)
- Advanced Kafka cluster with monitoring and replication services for streams messaging
- Custom Services
- Choose your own services. Services required by chosen services will automatically be included.
After selecting the services you want to add, click Continue. The Assign Roles page displays.
Assign Roles
The Assign Roles page suggests role assignments for the hosts in your cluster. You can click on the hostname for a role to select a different host. You can also click the View By Host button to see all the roles assigned to a host.
To review the recommended role assignments, see Recommended Cluster Hosts and Role Distribution.
After assigning all of the roles for your services, click Continue. The Setup Database page displays.
Setup Database
When using the Cloudera Manager installer with the embedded database, the Setup Database page is pre-populated with the database names and passwords. Click Test Connection to validate the settings. If the connection is successful, a green checkmark and the word Successful appears next to each service. If there are any problems, the error is reported next to the service that failed to connect. Some databases will be created in a future step. For these, the words Skipped. Cloudera Manager will create this database in a later step. appear next to the green checkmark.
After verifying that each connection is successful, click Continue. The Review Changes page displays.
Enter Required Parameters
The Enter Required Parameters page lists required parameters for DAS, the Cloudera Manager API client, and Ranger.
The DAS database hostname, database name, database username, and database password were configured when you created the required DAS database. The default database name is “das” and the default database user is “das”.
If you do not have an existing user for the Cloudera Manager API client, use the default username and password "admin" for both the The Existing Cloudera Manager API Client Username and The Existing Cloudera Manager API Client Password.
The Ranger Admin user, Usersync user, Tagsync User, and KMS Keyadmin User are created during cluster deployment. In this page you must give a password for each of these users.
The Ranger database host, name, user, and user password were configured when you created
the required Ranger database. If you ran the gen_embedded_ranger_db.sh
script to create the Ranger database, the output of the script contained the host and
database user password. Enter those here. The default database name is "ranger" and the
default database user is "rangeradmin."
Review Changes
The Review Changes page lists default and suggested settings for several configuration parameters, including data directories.
Review and make any necessary changes, and then click Continue. The Command Details page displays.
Command Details
The Command Details page lists the details of the First Run command. You can expand the running commands to view the details of any step, including log files and command output. You can filter the view by selecting Show All Steps, Show Only Failed Steps, or Show Running Steps.
After the First Run command completes, click Continue to go to the Summary page.
Summary
The Summary page reports the success or failure of the setup wizard. Click Finish to complete the wizard. The installation is complete.
Cloudera recommends that you change the default password as soon as possible by clicking the logged-in username at the top right of the home screen and clicking Change Password.
