Restart redo apply broker
DGMGRL> EDIT DATABASE 'PRIMARY' SET STATE='APPLY-OFF';
So get rid of the standby redo logs would be one way. I would leave it alone myself. Real time apply helps prevent data loss.
DGMGRL> EDIT DATABASE 'PRIMARY' SET STATE='APPLY-ON';
Standby database configured with broker and applying the redo in really time; however, I want to change this to archive log apply mode without losing the broker configuration. Is it possible? If it is not possible to use broker to do archive log apply, can I remove the broker and use data guard to set up the standby to use archive log apply?
SQL> alter database recover managed standby database cancel;