Apache Ambari Installation
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Install Databases for HDF services

When installing Schema Registry, SAM, Druid, and Superset, you require a relational data store to store metadata. You can use either MySQL, Postgres, Oracle, or MariaDB. These topics describe how to install MySQL, Postgres, and Oracle and how create a databases for SAM and Schema Registry. If you are installing on an existing HDP cluster by using Superset, you can skip the installation instructions, because MySQL was installed with Druid. In this case, configure the databases.

[Note]Note

You should install either Postgres, Oracle or MySQL; both are not necessary. It is recommended that you use MySQL.

[Warning]Warning

If you are installing Postgres, you must install Postgres 9.5 or later for SAM and Schema Registry. Ambari does not install Postgres 9.5, so you must perform a manual Postgres installation.

Installing and Configuring MySQL

Installing and Configuring Postgres

Using an Oracle Database