ORA-16820: Fast-Start Failover observer is no longer observing this database
Cause: A previously started observer was no longer actively observing this database. A significant amount of time elapsed since this database last heard from the observer. Possible reasons were: available.
Action: Check the reason why the observer cannot contact this database. If the problem cannot be corrected, stop the current observer by connecting to the Data Guard configuration and issue the DGMGRL STOP OBSERVER command. Then restart the observer on another node. You may use the DGMGRL START OBSERVER command to start the observer on the other node.
Cause: A previously started observer was no longer actively observing this database. A significant amount of time elapsed since this database last heard from the observer. Possible reasons were: available.
Action: Check the reason why the observer cannot contact this database. If the problem cannot be corrected, stop the current observer by connecting to the Data Guard configuration and issue the DGMGRL STOP OBSERVER command. Then restart the observer on another node. You may use the DGMGRL START OBSERVER command to start the observer on the other node.
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