I created a FDA connnection to a MySQL database. And then I use the activity "data loading(RDBMS)" to synchronize the data from the MySQL tables, the table has aout 30 million rows in it, after I run the activity for 10 mins, the SQL process in the MYSQL database missing from the processlist. How can I confirgure the FDA connnections and let the Adobe campaign can load the data from the external MySQL database?