MRP0wait_fo_log

Question

Dear All
Redo logs are not applying to Physical standby database
SQL> select process,sequence#,thread#,status from v$managed_standby;
PROCESS    SEQUENCE#    THREAD# STATUS
ARCH               0          0 CONNECTED
ARCH               0          0 CONNECTED
ARCH               0          0 CONNECTED
ARCH               0          0 CONNECTED
RFS            35641          1 IDLE
RFS                0          0 IDLE
MRP0           31755          1 WAIT_FOR_GAP
7 rows selected.
SQL> select * from v$archive_gap;
no rows selected
Select message from v$dataguard_status;
MESSAGE
Clearing online redo logfile 1 complete
Media Recovery Waiting for thread 1 sequence 31755
Fetching gap sequence in thread 1, gap sequence 31755-31854
FAL[client]: Failed to request gap sequence
GAP - thread 1 sequence 31755-31854
DBID 705939580 branch 764781069
FAL[client]: All defined FAL servers have been attempted.
MRP0: Background Media Recovery cancelled with status 16037
MRP0: Background Media Recovery process shutdown
Managed Standby Recovery Canceled
Redo Shipping Client Connected as PUBLIC
MESSAGE
-- Connected User is Valid
RFS[1]: Assigned to RFS process 6344
RFS[1]: Identified database type as 'physical standby'
Primary database is in MAXIMUM PERFORMANCE mode
Primary database is in MAXIMUM PERFORMANCE mode
Redo Shipping Client Connected as PUBLIC
-- Connected User is Valid
RFS[2]: Assigned to RFS process 9444
RFS[2]: Identified database type as 'physical standby'
Attempt to start background Managed Standby Recovery process
MRP0: Background Managed Standby Recovery process started
MESSAGE
Managed Standby Recovery not using Real Time Apply
Clearing online redo logfile 1 O:\ORADATA\PIHIST\REDO01.LOG
Clearing online redo logfile 1 complete
Media Recovery Waiting for thread 1 sequence 31755
Fetching gap sequence in thread 1, gap sequence 31755-31854
FAL[client]: Failed to request gap sequence
GAP - thread 1 sequence 31755-31854
DBID 705939580 branch 764781069
FAL[client]: All defined FAL servers have been attempted.

Answer 1

HI,
Please check below link:
https://support.oracle.com/epmos/faces/ui/km/SearchDocDisplay.jspx?returnToSrId=&_afrLoop=242951595299302&srnum=&type=DOCUMENT&id=1221163.1&displayIndex=1&_afrWindowMode=0&_adf.ctrl-state=xt3uoc1dx_61
Note: Directly using of the link is not true. Perhaps link will not work. But it is better you search Doc ID 1221163.1 on Oracle support.
Thank you