Install Databases for MySQL

If you are installing the database in a MySQL instance, a separate base configuration has been provided. This configuration file is stored in the following location:

/opt/trifacta/conf/trifacta-conf.json.MYSQL_DB

To use MySQL, you should back up the default configuration file and then copy the MySQL version in its place:

cp /opt/trifacta/conf/trifacta-conf.json /opt/trifacta/conf/trifacta-conf.json.POSTGRES_DB
cp /opt/trifacta/conf/trifacta-conf.json.MYSQL_DB /opt/trifacta/conf/trifacta-conf.json

For CentOS 7.x:

# Install MySql Repo List
sudo wget https://dev.mysql.com/get/mysql80-community-release-el7-1.noarch.rpm
sudo rpm -Uvh mysql80-community-release-el7-1.noarch.rpm
# Check list of available Mysql Repos; by default 8.0 is enabled, but we want 5.7
yum repolist all | grep mysql
# Disable 8.0 and enable 5.7
sudo yum-config-manager --disable mysql80-community
sudo yum-config-manager --enable mysql57-community
# Verify repo state
yum repolist all | grep mysql
# Install Mysql Server
sudo yum install mysql-community-server
# Start mysql server
sudo systemctl start mysqld.service
# Verify status
sudo systemctl status mysqld.service

For CentOS 8.x:

# Install MySql Repo List
sudo wget https://dev.mysql.com/get/mysql80-community-release-el8-1.noarch.rpm
sudo rpm -Uvh mysql80-community-release-el7-1.noarch.rpm
# Check list of available Mysql Repos; by default 8.0 is enabled, but we want 5.7
yum repolist all | grep mysql
# Disable 8.0 and enable 5.7
sudo yum-config-manager --disable mysql80-community
sudo yum-config-manager --enable mysql57-community
# Verify repo state
yum repolist all | grep mysql
# Install Mysql Server
sudo yum install mysql-community-server
# Start mysql server
sudo systemctl start mysqld.service
# Verify status
sudo systemctl status mysqld.service

For Red Hat Enterprise Linux 7.x: See CentOS 7 above.

For Red Hat Enterprise Linux 8.x: See CentOS 8 above.

For Ubuntu 20.04:

# Install and configure repo config package
sudo apt-get update && sudo apt-get install lsb-release
wget https://dev.mysql.com/get/mysql-apt-config_0.8.10-1_all.deb
sudo debconf-set-selections <<< "mysql-apt-config mysql-apt-config/select-server select mysql-5.7"
sudo DEBIAN_FRONTEND=noninteractive dpkg -i mysql-apt-config_0.8.10-1_all.deb
sudo apt-get update
# Set Installer configs Admin password and install MySql Server package 
sudo debconf-set-selections <<< "mysql-community-server mysql-community-server/root-pass password <MYSQL_ADMIN_PASSWORD>"
sudo debconf-set-selections <<< "mysql-community-server mysql-community-server/re-root-pass password <MYSQL_ADMIN_PASSWORD>"
sudo DEBIAN_FRONTEND=noninteractive apt-get install mysql-community-server
sudo service mysql start

After you have completed the installation, you must acquire the port information for each database from the following locations on the Trifacta node. These port numbers need to be applied inside the Designer Cloud Powered by Trifacta platform.

CentOS/RHEL (MySQL 5.7):

The default port is 3306.

Ubuntu (MySQL 5.7) : Not supported.

If your MySQL databases are in a different timezone from the Trifacta node, you must configure the timezone value for each database, so that it can be inserted as part of the connection string.

In the Admin Settings page, these parameters are in the following form:

"*.database.mySqlServerTimezone": "",

For each database, insert the appropriate timezone value. For more information on supported values, see the documentation for your MySQL product.

See Database Parameter Reference.

When using MySQL, you must enable the following modes:

To verify:

To verify if these modes are enabled, please execute the following query:

SELECT @@sql_mode;

The two required values should be listed in the query output.

To enable:

For more information on enabling these modes, see https://dev.mysql.com/doc/refman/5.7/en/sql-mode.html.

By default, MySQL enforces a stricter password policy on database passwords. If you prefer to set your own passwords outside of this policy, you must lower the password policy. Please complete the following steps:

# Get temporary root password from mysql log
sudo grep 'temporary password' /var/log/mysqld.log
# Connect to server as root
mysql -uroot -p
# Update password
ALTER USER 'root'@'localhost' IDENTIFIED BY '<my_new_password>';
# Unless you plan to update all the User passwords to be meet MySql Security requirements, you should set the password policy to low
SET GLOBAL validate_password_policy=LOW;