29. Database Maintenance
In this chapter, you learn how to perform common database maintenance tasks.
Backing Up Data
Like all data, MariaDB data must be backed up regularly. As MariaDB databases are disk-based files, normal backup systems and routines can back up MariaDB data. However, as those files are always open and in use, normal file copy backup may not always work as is not recommended.
Here are possible solutions to this problem:
• Use the command line
mysqldump utility to dump all database contents to an external file. This utility should ideally be run before regular backups occur so the dumped file will be backed up properly.
• The command line
mysqlhotcopy utility can be used to copy all data from a database (this one is not supported ...