MRP0: Background Media Recovery process shutdown

Errors with log +FRA/erpdrdb/archivelog/2017_06_02/thread_2_seq_9952.2503.945625685
MRP0: Background Media Recovery terminated with error 10485
Errors in file /u01/app/oracle/diag/rdbms/erpdrdb/erpdrdb/trace/erpdrdb_pr00_9109800.trc:
ORA-10485: Real-Time Query cannot be enabled while applying migration redo.
Recovery interrupted!
MRP0: Background Media Recovery process shutdown (erpdrdb)


Cause: After starting the database as upgrade mode you have to disconnect the recovery database.

Solution: Disconnect the recovery database, shutdown, startup and start the recovery process.

SQL> alter database recover managed standby database disconnect ;

Database altered.

SQL> shutdown immediate;
Database closed.
Database dismounted.
ORACLE instance shut down.
SQL> startup mount;
ORACLE instance started.

Total System Global Area 6.3069E+10 bytes
Fixed Size                  2393728 bytes
Variable Size            8388610432 bytes
Database Buffers         5.4660E+10 bytes
Redo Buffers               18116608 bytes
Database mounted.
SQL> alter database recover managed standby database using current logfile disconnect ;

Database altered.

SQL>