If you've determined that a direct upgrade from MySQL 8. x to MariaDB 10. x is not possible due to compatibility issues or other constraints, you'll need to follow a multi-step process to migrate your data. Here's a general outline of the steps you'll need to take:
-
Backup Your Data:
- Before making any changes, ensure you have a complete backup of your MySQL 8. x database.
-
Export Data from MySQL 8. x:
- Use tools like
mysqldump
to export your data from MySQL 8. x. This will create an SQL file with all your database structure and data.
- Use tools like
-
Set Up a Temporary Database:
- Install and configure a temporary MySQL server (compatible with both MySQL 8. x and MariaDB 10. x) where you'll import the data.
-
Import Data to Temporary Database:
- Run the SQL file generated in step 2 to populate the temporary database.
-
Check for Compatibility Issues:
- Verify that all data has been successfully imported and that there are no compatibility issues or errors.
-
Export Data from Temporary Database:
- Use
mysqldump
again, this time from the temporary MySQL server, to create another SQL file.
- Use
-
Install MariaDB 10.x:
- Install MariaDB 10. x on your server. Follow the official documentation for your specific operating system.
-
Import Data into MariaDB 10.x:
- Use the SQL file generated in step 6 to populate your new MariaDB 10. x database.
-
Check Data Integrity:
- Verify that all data has been successfully imported and that there are no integrity issues.
-
Reconfigure Applications:
- Update your applications, scripts, and configurations to point to the new MariaDB 10. x database.
-
Test Applications:
- Thoroughly test all your applications to ensure they function correctly with the new database.
-
Performance Tuning (if necessary):
- Adjust MariaDB configurations to optimize performance based on your specific workload.
-
Regular Backups:
- Set up regular backups for your new MariaDB 10. x database to ensure data safety.
Remember to consult the official documentation for both MySQL and MariaDB during this process. Also, consider consulting with a database administrator or expert if you're not comfortable with these steps, as database migrations can be complex and may have unforeseen challenges.