ORA-16138: end of log stream not received

admin

ORA-16138: end of logstream not received from primary
Cause: The standby system has not received notification thatthe primary system
log stream has been terminated. A graceful switchover is not possible.
Action: Verifythat 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.