Currently, the MySQL database for Etherpad has 629 771 rows in a store table, used by UeberDB as a K/V store.

Redis is a specialized server for such use, MySQL isn't really.

Plan

1. Spin a redis container
2. Shutdown Etherpad container
3. Backup MySQL data
4. Migrate Etherpad-Lite from MySQL to Redis (that's a Go program)
5. Reconfigure Etherpad to use Redis
6. Restart container

Authorization

As our Etherpad installation is shared, this needs an approval from @ledesillusionniste for Wolfplex.