Install Postgres
Before You Begin
If you have already installed a MySQL database, you may skip these steps.
![[Warning]](../common/images/admon/warning.png) | Warning |
|---|---|
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
Install Red Hat Package Manager (RPM) according to the requirements of your operating system:
yum install https://yum.postgresql.org/9.6/redhat/rhel-7-x86_64/pgdg-redhat96-9.6-3.noarch.rpm
Install Postgres version 9.5 or later:
yum install postgresql96-server postgresql96-contrib postgresql96
Initialize the database:
For CentOS 7, use the following syntax:
/usr/pgsql-9.6/bin/postgresql96-setup initdb
For CentOS 6, use the following syntax:
sudo service postgresql initdb
Start Postgres.
For example, if you are using CentOS 7, use the following syntax:
systemctl enable postgresql-9.6.service systemctl start postgresql-9.6.service
Verify that you can log in:
sudo su postgres psql