Prior to upgrading your cluster to CDP Private Cloud Base you must configure the MySQL or MariaDB database instance for Ranger by creating a Ranger database and user. Before you begin the transition, review the support policies of database and admin policy support for transactions.
A supported version of MySQL or MariaDB must be running and available to be used by Ranger.
See Database Requirements.
When using MySQL or MariaDB, the storage engine used for the Ranger
admin policy store tables MUST support transactions. InnoDB is an
example of engine that supports transactions. A storage engine that does
not support transactions is not suitable as a policy store.
Log in to the host where you want to set up the MySQL database
for Ranger.
Make sure you have the MYSQL connector version 5.7 or higher in the
/usr/share/java/ directory with name
mysql-connector-java.jar.
Edit the following file: /etc/my.cnf and add
the following line:
log_bin_trust_function_creators = 1
Restart the
database:
systemctl restart mysqld
or:
systemctl restart mariadb
Log in to mysql:
mysql -u root
Run the following commands to create the Ranger database and
user.
Substitute the following in the command:
(optional) Replace rangeradmin with a username of your choice. Note
this username, you will need to enter it later when running the Upgrade
Cluster command.
(optional) Replace cloudera with a password of
your choice. Note this password, you will need to enter it later
when running the Upgrade Cluster
command.
<Ranger Admin Role hostname> – the name of
the host where the Ranger Admin role will run. Note this host, you
will need to enter it later when running the Upgrade
Cluster command.
CREATE DATABASE ranger;
CREATE USER 'rangeradmin'@'%' IDENTIFIED BY 'cloudera';
CREATE USER 'rangeradmin'@'localhost' IDENTIFIED BY 'cloudera';
CREATE USER 'rangeradmin'@'<Ranger Admin Role hostname>' IDENTIFIED BY 'cloudera';
GRANT ALL PRIVILEGES ON ranger.* TO 'rangeradmin'@'%';
GRANT ALL PRIVILEGES ON ranger.* TO 'rangeradmin'@'localhost';
GRANT ALL PRIVILEGES ON ranger.* TO 'rangeradmin'@'<Ranger Admin Role hostname>';
FLUSH PRIVILEGES;
Use the exit; command to exit MySQL.
Test connecting to the database using the following command:
mysql -u rangeradmin -pcloudera
After testing the connection, use the exit;
command to exit MySQL.
Continue with the cluster installation or upgrade to complete the transition.
