So, I need to free up some space on our database server.
On investigation it looks like lots of space is being taken up by MariaDB/MySQL databases that are no longer used (snapshots and defunct applications). I want to delete those, but due to events, nobody here has access to a MariaDB user account which can drop those database schemas.
MariaDB is running on the server, running a live system.
Can I just go into the /mysql folder and delete the redundant data from the filesystem without it messing up the live database?