Oracle Error Message
ORA-16799: Redo Apply is not running
Reason for the Error
Either the Data Guard broker configuration indicates that Redo Apply was turned off, or the recovery process, MRP0, was not running. As a result, Redo Apply-related properties could not be set.
Solution
Turn on Redo Apply through Data Guard broker and reissue the command to set a Redo Apply-related property.