sudo su
# Remove MariaDB packages
yum list installed | grep -i maria
yum remove mariadb.x86_64
yum remove mariadb-libs.x86_64
# Download MySQL 5.7 RPM tar
wget https://dev.mysql.com/get/Downloads/MySQL-5.7/mysql-5.7.24-1.el7.x86_64.rpm-bundle.tar
mkdir mysql-5.7-rpm-packages
tar -xvf mysql-5.7.24-1.el7.x86_64.rpm-bundle.tar -C mysql-5.7-rpm-packages
cd mysql-5.7-rpm-packages/
# Don't use 'yum install *.rpm'. It will not work and give error messages
yum install mysql-community-{server,client,common,libs}-* --exclude='*minimal*'
# Start MySQL
systemctl start mysqld
# Enable mysqld service in startup
systemctl enable mysqld
# Get temporary password of root
grep 'A temporary password' /var/log/mysqld.log |tail -1
# Make MySQL secure installation
mysql_secure_installation
Securing the MySQL server deployment.
Enter password for user root:
The existing password for the user account root has expired. Please set a new password.
New password:
Re-enter new password:
... Failed! Error: Your password does not satisfy the current policy requirements
New password:
Re-enter new password:
The 'validate_password' plugin is installed on the server.
The subsequent steps will run with the existing configuration
of the plugin.
Using existing password for root.
Estimated strength of the password: 100
Change the password for root ? ((Press y|Y for Yes, any other key for No) : y
New password:
Re-enter new password:
Estimated strength of the password: 100
Do you wish to continue with the password provided?(Press y|Y for Yes, any other key for No) : y
By default, a MySQL installation has an anonymous user,
allowing anyone to log into MySQL without having to have
a user account created for them. This is intended only for
testing, and to make the installation go a bit smoother.
You should remove them before moving into a production
environment.
Remove anonymous users? (Press y|Y for Yes, any other key for No) : y
Success.
Normally, root should only be allowed to connect from
'localhost'. This ensures that someone cannot guess at
the root password from the network.
Disallow root login remotely? (Press y|Y for Yes, any other key for No) : y
Success.
By default, MySQL comes with a database named 'test' that
anyone can access. This is also intended only for testing,
and should be removed before moving into a production
environment.
Remove test database and access to it? (Press y|Y for Yes, any other key for No) : y
- Dropping test database...
Success.
- Removing privileges on test database...
Success.
Reloading the privilege tables will ensure that all changes
made so far will take effect immediately.
Reload privilege tables now? (Press y|Y for Yes, any other key for No) : y
Success.
All done!
uninstall plugin validate_password;
# Add below line in [mysqld] section
transaction-isolation=READ-COMMITTED
https://gist.github.com/linuxkathirvel/973de61756e742e1e4e33ce36707b1d2
Thank you! This procedure was exactly what I needed and it worked to perfection.