There are some major performance benefits to using MySQL over SQLite when writing large amounts of files. Switching can be especially useful when moving data to greyhole shares for the first time. For now there is a script you can run if you want to switch over. This script has been tested to be safe while greyhole is working but should be used with discresion.
'''To Convert to MySQL, run as root:'''/usr/share/greyhole/db_migration-sqlite2mysql.sh
/usr/share/greyhole/db_migration-sqlite2mysql.sh
To see what DB engine is Greyhole using, do this:
grep db_engine /etc/greyhole.conf
== Disable Greyhole ==