ORA-21561, ORA-15055, ORA-25253 causes the DG slave database to be unable to apply Archive

Although deleteinput is configured in the script to delete the archive after the archive is backed up, to reduce the disk space occupied by the archive, you can see in the backup log of the RMAN script, from January 1, August 3

Although the archive is deleted using delete input after the archive is backed up in the script to reduce the disk space occupied by the archive, you can see in the backup log of the RMAN script, from January 1, August 3

So I decided to re-build the DG, shut down the slave database instance, delete all database files (data files, control files, log files), and only keep the password files, parameter files, and tnsnames. ora, listener. ora is enough, and reconstruction is very convenient. Use the 11g duplicate to re-synchronize it. The command is as follows: