Oracle Solution for Error ora-15554

ORA-15554: cannot start workload replay client because the database server is not in PREPARE mode

What triggered the Error:

The Workload Replay Client could not connect to the database server because the database server was not in the PREPARE mode.

What should we do to fix it:

Put the database in PREPARE mode by using DBMS_WORKLOAD_REPLAY.PREPARE_REPLAY, and restart the Workload Replay Client.