ORA-16138
        end of log stream not received from primary
        
        
        Cause
        The standby system has not received notification that the primary system log stream has been terminated. A graceful switchover is not possible.
        Action
        Verify that the primary log stream has been terminated. Ensure that the standby has applied all necessary redo from the primary system and, if appropriate, reissue the graceful switchover command.
        
     
    
    
        ORA-16138
        end of log stream not received from primary
        
        
        Cause
        The standby system has not received notification that the primary system log stream has been terminated. A graceful switchover is not possible.
        Action
        Verify that the primary log stream has been terminated. Ensure that the standby has applied all necessary redo from the primary system and, if appropriate, reissue the graceful switchover command.
        
     
    
    
        ORA-16138
        end of log stream not received from primary
        
        
        Cause
        The standby system has not received notification that the primary system log stream has been terminated. A graceful switchover is not possible.
        Action
        Verify that the primary log stream has been terminated. Ensure that the standby has applied all necessary redo from the primary system and, if appropriate, reissue the graceful switchover command.