ORA-16854 IN BROKER AND GV$RECOVERY_PROGRESS ON STANDBY SHOWING NO ROWS PERIODICALLY WHEN IT'S IN SYNC
(Doc ID 2371648.1)
Last updated on JULY 05, 2021
Applies to:Oracle Database Cloud Schema Service - Version N/A and later
Gen 1 Exadata Cloud at Customer (Oracle Exadata Database Cloud Machine) - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Oracle Database Backup Service - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Information in this document applies to any platform.
Issue reported on 188.8.131.52 version, Oracle Data Guard.
DGMGRL reports ORA-16854 for the standby standby_b and v$recovery_progress view it shows "No rows".
Other standby's standby_c returns it's SCN ,MRP is applying the same redo and v$standby_log shows ACTIVE for same redo.
If they switch a logfile it will get applied to the standby_b as well.
DGMGRL> show configuration verbose
Configuration - <CONFIGURATION_NAME>
Protection Mode: MaxAvailability
<PRIMARY_NAME>- Primary database
<STANDBY-C>- Physical standby database
<STANDBY-B> - Physical standby database
Warning: ORA-16854: apply lag could not be determined
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