ORA-19527: physical standby redo log must be renamed

On standby side, you may encountered the Error “ORA-19527: physical standby redo log must be renamed” in the alert log.

ORA-19527: physical standby redo log must be renamed
ORA-00312: online log 10 thread 1: '/u01/oradata/dev12c/std_redo03.log'

Though this didn’t stop the data guard replication, we need to get rid of this error message. It seems to be false alarm in DR alert log.

Solution: If there is no difference in the directory structure in Primary and standby, you can get rid of this message by modifying the log_file_name_convert parameter to a dummy Value

ALTER SYSTEM SET log_file_name_convert='dummy','dummy';

After the parameter was set, the ORA message was no longer seen in the alert.log

Reference: ORA-19527: Physical Standby Redo Log Must Be Renamed…during switchover (Doc ID 2194825.1)