Before You Begin

If you have already installed a MySQL database, you may skip these steps.

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.

Steps

  1. Install Red Hat Package Manager (RPM) according to the requirements of your operating system:

    1.  yum install https://yum.postgresql.org/9.6/redhat/rhel-7-x86_64/pgdg-redhat96-9.6-3.noarch.rpm

  2. Install Postgres version 9.5 or later:

    1.  yum install postgresql96-server postgresql96-contrib postgresql96

  3. Initialize the database:

    • For CentOS 7, use the following syntax:

      1. /usr/pgsql-9.6/bin/postgresql96-setup initdb

    • For CentOS 6, use the following syntax:

      1. sudo service postgresql initdb

  4. Start Postgres.

    For example, if you are using CentOS 7, use the following syntax:

    1.  systemctl enable postgresql-9.6.service
    2.  systemctl start postgresql-9.6.service

  5. Verify that you can log in:

    1.  sudo su postgres
    2.  psql