Installing and Configuring Databases
Cloudera Manager uses databases to store information about the Cloudera Manager configuration, as well as information such as the health of the system or task progress. Cloudera Manager supports using a variety of databases to store required information. To facilitate rapid completion of simple installations, the Cloudera Manager can install and configure a PostgreSQL database as part of the broader Cloudera Manager installation process. This automatically installed database is sometimes referred to as an embedded PostgreSQL database. While the embedded database is a useful option for getting started quickly, Cloudera Manager also allows you to use other databases. You can opt to use your own PostgreSQL database or MySQL or Oracle databases.
If you plan to use the embedded database provided during the Cloudera Manager installation for all databases, you can skip ahead to Installation Path A - Automated Installation by Cloudera Manager. To learn more about database options or if you are unsure whether or not using the embedded database is right for your environment, continue reading.