Oracle Error ORA-16447: Redo apply was not active at the target standby database

Oracle Error Message

ORA-16447: Redo apply was not active at the target standby database

Reason for the Error

ALTER SYSTEM FLUSH REDO TO STANDBY failed because redo apply is not active at the target database.

Solution

Start redo apply at the standby database and reissue the ALTER SYSTEM FLUSH REDO TO STANDBY statement, or reissue the ALTER SYSTEM FLUSH REDO TO STANDBY statement with the NO CONFIRM APPLY clause.