2. Set Up the Ambari Server

The ambari-server command manages the setup process. Run the following command on the Ambari server host: You may append Setup Options to the command. ambari-server setup

Respond to the following prompts:

If you have not temporarily disabled SELinux, you may get a warning. Accept the default (y), and continue.
By default, Ambari Server runs under root. Accept the default (n) at the Customize user account for ambari-server daemon prompt, to proceed as root. If you want to create a different user to run the Ambari Server, or to assign a previously created user, select y at the Customize user account for ambari-server daemon prompt, then provide a user name.
If you have not temporarily disabled iptables you may get a warning. Enter y to continue.

Select a JDK version to download. Enter 1 to download Oracle JDK 1.7.

	Note
	By default, Ambari Server setup downloads and installs Oracle JDK 1.7 and the accompanying Java Cryptography Extension (JCE) Policy Files. If you plan to use a different version of the JDK, see Setup Options for more information.

Accept the Oracle JDK license when prompted. You must accept this license to download the necessary JDK from Oracle. The JDK is installed during the deploy phase.
Select n at Enter advanced database configuration to use the default, embedded PostgreSQL database for Ambari. The default PostgreSQL database name is ambari. The default user name and password are ambari/bigdata. Otherwise, to use an existing PostgreSQL, MySQL or Oracle database with Ambari, select y.
- If you are using an existing PostgreSQL, MySQL, or Oracle database instance, use one of the following prompts:
  Important
  You must prepare a non-default database instance, using the steps detailed in Using Non-Default Databases-Ambari, before running setup and entering advanced database configuration.
- To use an existing Oracle 11g r2 instance, and select your own database name, user name, and password for that database, enter 2.
  Select the database you want to use and provide any information requested at the prompts, including host name, port, Service Name or SID, user name, and password.
- To use an existing MySQL 5.x database, and select your own database name, user name, and password for that database, enter 3.
  Select the database you want to use and provide any information requested at the prompts, including host name, port, database name, user name, and password.
- To use an existing PostgreSQL 9.x database, and select your own database name, user name, and password for that database, enter 4.
  Select the database you want to use and provide any information requested at the prompts, including host name, port, database name, user name, and password.
At Proceed with configuring remote database connection properties [y/n] choose y.
Setup completes.
Note
If your host accesses the Internet through a proxy server, you must configure Ambari Server to use this proxy server. See How to Set Up an Internet Proxy Server for Ambari for more information.

	Important
You must prepare a non-default database instance, using the steps detailed in Using Non-Default Databases-Ambari, before running setup and entering advanced database configuration.

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	Note
	If your host accesses the Internet through a proxy server, you must configure Ambari Server to use this proxy server. See How to Set Up an Internet Proxy Server for Ambari for more information.