Data Guard Sync Status
Method :1
=========
=========
PRIMARY
========
sqlplus "/ as sysdba"
set pages 50000 lines 32767col OPEN_MODE for a10
col HOST_NAME for a10
col DATABASE_ROLE for a7
select NAME,DB_UNIQUE_NAME,INSTANCE_NAME,HOST_NAME,OPEN_MODE,LOG_MODE,DATABASE_STATUS,DATABASE_ROLE,SWITCHOVER_STATUS,PROTECTION_MODE,PROTECTION_LEVEL,CONTROLFILE_TYPE,STATUS,LOGINS,to_char(STARTUP_TIME,'DD-MON-YYYY HH24:MI:SS') "DB UP TIME" from v$database,gv$instance;
-----------------------------------------------------------------------------------------------------------------------
SELECT NAME,OPEN_MODE,DATABASE_ROLE,PROTECTION_LEVEL,SWITCHOVER_STATUS,STATUS,LOGINS FROM V$DATABASE,GV$INSTANCE;
-----------------------------------------------------------------------------------------------------------------------
select THREAD#,SEQUENCE#,STATUS,ARCHIVED from v$log;
-----------------------------------------------------------------------------------------------------------------------
select dest_id,database_mode,recovery_mode,protection_mode,archived_seq#,applied_seq# from v$archive_dest_Status where dest_id in (1,2);
SELECT NAME,OPEN_MODE,DATABASE_ROLE,PROTECTION_LEVEL,SWITCHOVER_STATUS,STATUS,LOGINS FROM V$DATABASE,GV$INSTANCE;
-----------------------------------------------------------------------------------------------------------------------
select THREAD#,SEQUENCE#,STATUS,ARCHIVED from v$log;
-----------------------------------------------------------------------------------------------------------------------
select dest_id,database_mode,recovery_mode,protection_mode,archived_seq#,applied_seq# from v$archive_dest_Status where dest_id in (1,2);
-----------------------------------------------------------------------------------------------------------------------
set pages 50000 lines 32767Set scan off
Set feed off
BREAK ON ROW SKIP 1
COL "THREAD" for a10
COL "PR-ARCHIVED" for a15
COL "STBY-ARCHIVED" for a15
COL "STBY-APPLIED" for a 15
COL "SHIPPING GAP(PR -> STBY)" for a20
COL "APPLIED GAP(STBY -> STBY)" for a20
set head off
select 'sysdate: '|| to_char(sysdate,'DD-Mon-YYYY Hh24:Mi:ss') from dual;
select '****************Standby Log ship and Log Apply Status*****************' from dual;
set head on
select DEST_ID,DESTINATION,TARGET,STATUS from V$ARCHIVE_DEST where DESTINATION is not null;
select * from (
select
lpad(t1,4,' ') "Thread",
lpad(pricre,9,' ') "PR - Archived",
lpad(stdcre,10,' ') "STBY - Archived",
lpad(stdnapp,9,' ') "STBY - Applied",
lpad(pricre-stdcre,13,' ') "Shipping GAP (PR -> STBY)",
lpad(stdcre-stdnapp,15,' ') "Applied GAP (STBY -> STBY)"
from
(select max(sequence#) stdcre, thread# t1 from v$archived_log where standby_dest='YES' and resetlogs_id in (select max(RESETLOGS_ID) from v$archived_log) and thread# in (1,2,3,4) group by thread#) a,
(select max(sequence#) stdnapp, thread# t2 from v$archived_log where standby_dest='YES' and resetlogs_id in (select max(RESETLOGS_ID) from v$archived_log) and thread# in (1,2,3,4) and applied='YES' group by thread#) b,
(select max(sequence#) pricre, thread# t3 from v$archived_log where standby_dest='NO' and resetlogs_id in (select max(RESETLOGS_ID) from v$archived_log) and thread# in (1,2,3,4) group by thread#) c
where a.t1=b.t2 and b.t2=c.t3 and c.t3=a.t1) order by 1
/
THREAD PR-ARCHIVED STBY-ARCHIVED STBY-APPLIED SHIPPING GAP(PR -> STBY) APPLIED GAP(STBY -> STBY)
------ ----------- ------------- ------------ ------------------------ -------------------------
Switch log minimun 3 times
--------------------------
alter system switch logfile; or
alter system switch all logfile; or
alter system archive log current;
set pages 50000 lines 32767Set scan off
Set feed off
BREAK ON ROW SKIP 1
COL "THREAD" for a10
COL "PR-ARCHIVED" for a15
COL "STBY-ARCHIVED" for a15
COL "STBY-APPLIED" for a 15
COL "SHIPPING GAP(PR -> STBY)" for a20
COL "APPLIED GAP(STBY -> STBY)" for a20
set head off
select 'sysdate: '|| to_char(sysdate,'DD-Mon-YYYY Hh24:Mi:ss') from dual;
select '****************Standby Log ship and Log Apply Status*****************' from dual;
set head on
select DEST_ID,DESTINATION,TARGET,STATUS from V$ARCHIVE_DEST where DESTINATION is not null;
select * from (
select
lpad(t1,4,' ') "Thread",
lpad(pricre,9,' ') "PR - Archived",
lpad(stdcre,10,' ') "STBY - Archived",
lpad(stdnapp,9,' ') "STBY - Applied",
lpad(pricre-stdcre,13,' ') "Shipping GAP (PR -> STBY)",
lpad(stdcre-stdnapp,15,' ') "Applied GAP (STBY -> STBY)"
from
(select max(sequence#) stdcre, thread# t1 from v$archived_log where standby_dest='YES' and resetlogs_id in (select max(RESETLOGS_ID) from v$archived_log) and thread# in (1,2,3,4) group by thread#) a,
(select max(sequence#) stdnapp, thread# t2 from v$archived_log where standby_dest='YES' and resetlogs_id in (select max(RESETLOGS_ID) from v$archived_log) and thread# in (1,2,3,4) and applied='YES' group by thread#) b,
(select max(sequence#) pricre, thread# t3 from v$archived_log where standby_dest='NO' and resetlogs_id in (select max(RESETLOGS_ID) from v$archived_log) and thread# in (1,2,3,4) group by thread#) c
where a.t1=b.t2 and b.t2=c.t3 and c.t3=a.t1) order by 1
/
THREAD PR-ARCHIVED STBY-ARCHIVED STBY-APPLIED SHIPPING GAP(PR -> STBY) APPLIED GAP(STBY -> STBY)
------ ----------- ------------- ------------ ------------------------ -------------------------
==================================================================================================
Method :2
=========
STANDBY
========
sqlplus "/ as sysdba"
set pages 50000 lines 32767
col OPEN_MODE for a10
col HOST_NAME for a10
col DATABASE_ROLE for a7
select NAME,DB_UNIQUE_NAME,INSTANCE_NAME,HOST_NAME,OPEN_MODE,LOG_MODE,DATABASE_STATUS,DATABASE_ROLE,SWITCHOVER_STATUS,PROTECTION_MODE,PROTECTION_LEVEL,CONTROLFILE_TYPE,STATUS,LOGINS,to_char(STARTUP_TIME,'DD-MON-YYYY HH24:MI:SS') "DB UP TIME" from v$database,gv$instance;
SELECT NAME,OPEN_MODE,DATABASE_ROLE,PROTECTION_LEVEL,SWITCHOVER_STATUS,STATUS,LOGINS FROM V$DATABASE,GV$INSTANCE;
select THREAD#,SEQUENCE#,STATUS,ARCHIVED from v$log;
SELECT PROCESS, CLIENT_PROCESS, SEQUENCE#, STATUS,THREAD#, DELAY_MINS FROM GV$MANAGED_STANDBY;
select dest_id,database_mode,recovery_mode,protection_mode,archived_seq#,applied_seq# from v$archive_dest_Status where dest_id in (1,2);
PROMPT
PROMPT
PROMPT Run on Standby Database. This script checks last log applied and last log received time
PROMPT
PROMPT
col time format a40
select 'Last applied : ' Logs, to_char(next_time,'DD-MON-YY:HH24:MI:SS') Time
from v$archived_log
where sequence# = (select max(sequence#) from v$archived_log where applied='YES')
union
select 'Last received : ' Logs, to_char(next_time,'DD-MON-YY:HH24:MI:SS') Time
from v$archived_log
where sequence# = (select max(sequence#) from v$archived_log);
PROMPT last sequence# received and the last sequence# applied to standby database.
PROMPT
select al.thrd "Thread", almax "Last Seq Received", lhmax "Last Seq Applied"
from (select thread# thrd, max(sequence#) almax
from v$archived_log
where resetlogs_change#=(select resetlogs_change# from v$database)
group by thread#) al,
(select thread# thrd, max(sequence#) lhmax
from v$log_history
where first_time=(select max(first_time) from v$log_history)
group by thread#) lh
where al.thrd = lh.thrd;
==================================================================================================================
Method :3
=========
PRIMARY
========
SELECT ARCH.THREAD# "Thread", ARCH.SEQUENCE# "Last Sequence Received", APPL.SEQUENCE# "Last Sequence Applied",
(ARCH.SEQUENCE# - APPL.SEQUENCE#) "Difference" FROM (SELECT THREAD# ,SEQUENCE# FROM V$ARCHIVED_LOG
WHERE (THREAD#,FIRST_TIME ) IN (SELECT THREAD#,MAX(FIRST_TIME) FROM V$ARCHIVED_LOG GROUP BY THREAD#)) ARCH,
(SELECT THREAD# ,SEQUENCE# FROM V$LOG_HISTORY WHERE (THREAD#,FIRST_TIME ) IN (SELECT THREAD#,MAX(FIRST_TIME)
FROM V$LOG_HISTORY GROUP BY THREAD#)) APPL WHERE ARCH.THREAD# = APPL.THREAD# ORDER BY 1;
Thread Last Sequence Received Last Sequence Applied Difference
---------- ---------------------- --------------------- ----------
Switch log minimun 3 times
--------------------------
alter system switch logfile; or
alter system switch all logfile; or
alter system archive log current;
SELECT ARCH.THREAD# "Thread", ARCH.SEQUENCE# "Last Sequence Received", APPL.SEQUENCE# "Last Sequence Applied",
(ARCH.SEQUENCE# - APPL.SEQUENCE#) "Difference" FROM (SELECT THREAD# ,SEQUENCE# FROM V$ARCHIVED_LOG
WHERE (THREAD#,FIRST_TIME ) IN (SELECT THREAD#,MAX(FIRST_TIME) FROM V$ARCHIVED_LOG GROUP BY THREAD#)) ARCH,
(SELECT THREAD# ,SEQUENCE# FROM V$LOG_HISTORY WHERE (THREAD#,FIRST_TIME ) IN (SELECT THREAD#,MAX(FIRST_TIME)
FROM V$LOG_HISTORY GROUP BY THREAD#)) APPL WHERE ARCH.THREAD# = APPL.THREAD# ORDER BY 1;
Thread Last Sequence Received Last Sequence Applied Difference
---------- ---------------------- --------------------- ----------
0 OR min
==================================================================================================================
Method :4
=========
PRIMARY
========
Switch log minimun 3 times
--------------------------
alter system switch logfile; or
alter system switch all logfile; or
alter system archive log current;
select thread#,max(sequence#) from v$archived_log where archived='YES' group by thread# order by 1;
STANDBY
========
select thread#,max(sequence#) from v$archived_log where applied='YES' group by thread# order by 1;
==================================================================================================================
Method :5
=========
STANDBY
========
SELECT PROCESS, CLIENT_PROCESS, SEQUENCE#, STATUS,THREAD#, DELAY_MINS FROM GV$MANAGED_STANDBY;
PROCESS CLIENT_P SEQUENCE# STATUS
--------- -------- ---------- ------
MRP0 N/A 1000 APPLIED_LOG
select THREAD#,SEQUENCE#,STATUS,ARCHIVED from v$log; ------ the status of redo log files
LGWR RFS 1000 CURRENT
Both the above current values must be same.
set pages 50000 lines 32767Set scan off
Set feed off
BREAK ON ROW SKIP 1
COL "THREAD" for a10
COL "PR-ARCHIVED" for a15
COL "STBY-ARCHIVED" for a15
COL "STBY-APPLIED" for a 15
COL "SHIPPING GAP(PR -> STBY)" for a20
COL "APPLIED GAP(STBY -> STBY)" for a20
set head off
select 'sysdate: '|| to_char(sysdate,'DD-Mon-YYYY Hh24:Mi:ss') from dual;
select '****************Standby Log ship and Log Apply Status*****************' from dual;
set head on
select DEST_ID,DESTINATION,TARGET,STATUS from V$ARCHIVE_DEST where DESTINATION is not null;
select * from (
select
lpad(t1,4,' ') "Thread",
lpad(pricre,9,' ') "PR - Archived",
lpad(stdcre,10,' ') "STBY - Archived",
lpad(stdnapp,9,' ') "STBY - Applied",
lpad(pricre-stdcre,13,' ') "Shipping GAP (PR -> STBY)",
lpad(stdcre-stdnapp,15,' ') "Applied GAP (STBY -> STBY)"
from
(select max(sequence#) stdcre, thread# t1 from v$archived_log where standby_dest='YES' and resetlogs_id in (select max(RESETLOGS_ID) from v$archived_log) and thread# in (1,2,3,4) group by thread#) a,
(select max(sequence#) stdnapp, thread# t2 from v$archived_log where standby_dest='YES' and resetlogs_id in (select max(RESETLOGS_ID) from v$archived_log) and thread# in (1,2,3,4) and applied='YES' group by thread#) b,
(select max(sequence#) pricre, thread# t3 from v$archived_log where standby_dest='NO' and resetlogs_id in (select max(RESETLOGS_ID) from v$archived_log) and thread# in (1,2,3,4) group by thread#) c
where a.t1=b.t2 and b.t2=c.t3 and c.t3=a.t1) order by 1
/
THREAD PR-ARCHIVED STBY-ARCHIVED STBY-APPLIED SHIPPING GAP(PR -> STBY) APPLIED GAP(STBY -> STBY)
------ ----------- ------------- ------------ ------------------------ -------------------------
Switch log minimun 3 times
--------------------------
alter system switch logfile; or
alter system switch all logfile; or
alter system archive log current;
set pages 50000 lines 32767Set scan off
Set feed off
BREAK ON ROW SKIP 1
COL "THREAD" for a10
COL "PR-ARCHIVED" for a15
COL "STBY-ARCHIVED" for a15
COL "STBY-APPLIED" for a 15
COL "SHIPPING GAP(PR -> STBY)" for a20
COL "APPLIED GAP(STBY -> STBY)" for a20
set head off
select 'sysdate: '|| to_char(sysdate,'DD-Mon-YYYY Hh24:Mi:ss') from dual;
select '****************Standby Log ship and Log Apply Status*****************' from dual;
set head on
select DEST_ID,DESTINATION,TARGET,STATUS from V$ARCHIVE_DEST where DESTINATION is not null;
select * from (
select
lpad(t1,4,' ') "Thread",
lpad(pricre,9,' ') "PR - Archived",
lpad(stdcre,10,' ') "STBY - Archived",
lpad(stdnapp,9,' ') "STBY - Applied",
lpad(pricre-stdcre,13,' ') "Shipping GAP (PR -> STBY)",
lpad(stdcre-stdnapp,15,' ') "Applied GAP (STBY -> STBY)"
from
(select max(sequence#) stdcre, thread# t1 from v$archived_log where standby_dest='YES' and resetlogs_id in (select max(RESETLOGS_ID) from v$archived_log) and thread# in (1,2,3,4) group by thread#) a,
(select max(sequence#) stdnapp, thread# t2 from v$archived_log where standby_dest='YES' and resetlogs_id in (select max(RESETLOGS_ID) from v$archived_log) and thread# in (1,2,3,4) and applied='YES' group by thread#) b,
(select max(sequence#) pricre, thread# t3 from v$archived_log where standby_dest='NO' and resetlogs_id in (select max(RESETLOGS_ID) from v$archived_log) and thread# in (1,2,3,4) group by thread#) c
where a.t1=b.t2 and b.t2=c.t3 and c.t3=a.t1) order by 1
/
THREAD PR-ARCHIVED STBY-ARCHIVED STBY-APPLIED SHIPPING GAP(PR -> STBY) APPLIED GAP(STBY -> STBY)
------ ----------- ------------- ------------ ------------------------ -------------------------
==================================================================================================
Method :2
=========
STANDBY
========
sqlplus "/ as sysdba"
set pages 50000 lines 32767
col OPEN_MODE for a10
col HOST_NAME for a10
col DATABASE_ROLE for a7
select NAME,DB_UNIQUE_NAME,INSTANCE_NAME,HOST_NAME,OPEN_MODE,LOG_MODE,DATABASE_STATUS,DATABASE_ROLE,SWITCHOVER_STATUS,PROTECTION_MODE,PROTECTION_LEVEL,CONTROLFILE_TYPE,STATUS,LOGINS,to_char(STARTUP_TIME,'DD-MON-YYYY HH24:MI:SS') "DB UP TIME" from v$database,gv$instance;
SELECT NAME,OPEN_MODE,DATABASE_ROLE,PROTECTION_LEVEL,SWITCHOVER_STATUS,STATUS,LOGINS FROM V$DATABASE,GV$INSTANCE;
select THREAD#,SEQUENCE#,STATUS,ARCHIVED from v$log;
SELECT PROCESS, CLIENT_PROCESS, SEQUENCE#, STATUS,THREAD#, DELAY_MINS FROM GV$MANAGED_STANDBY;
select dest_id,database_mode,recovery_mode,protection_mode,archived_seq#,applied_seq# from v$archive_dest_Status where dest_id in (1,2);
PROMPT
PROMPT
PROMPT Run on Standby Database. This script checks last log applied and last log received time
PROMPT
PROMPT
col time format a40
select 'Last applied : ' Logs, to_char(next_time,'DD-MON-YY:HH24:MI:SS') Time
from v$archived_log
where sequence# = (select max(sequence#) from v$archived_log where applied='YES')
union
select 'Last received : ' Logs, to_char(next_time,'DD-MON-YY:HH24:MI:SS') Time
from v$archived_log
where sequence# = (select max(sequence#) from v$archived_log);
PROMPT last sequence# received and the last sequence# applied to standby database.
PROMPT
select al.thrd "Thread", almax "Last Seq Received", lhmax "Last Seq Applied"
from (select thread# thrd, max(sequence#) almax
from v$archived_log
where resetlogs_change#=(select resetlogs_change# from v$database)
group by thread#) al,
(select thread# thrd, max(sequence#) lhmax
from v$log_history
where first_time=(select max(first_time) from v$log_history)
group by thread#) lh
where al.thrd = lh.thrd;
==================================================================================================================
Method :3
=========
PRIMARY
========
SELECT ARCH.THREAD# "Thread", ARCH.SEQUENCE# "Last Sequence Received", APPL.SEQUENCE# "Last Sequence Applied",
(ARCH.SEQUENCE# - APPL.SEQUENCE#) "Difference" FROM (SELECT THREAD# ,SEQUENCE# FROM V$ARCHIVED_LOG
WHERE (THREAD#,FIRST_TIME ) IN (SELECT THREAD#,MAX(FIRST_TIME) FROM V$ARCHIVED_LOG GROUP BY THREAD#)) ARCH,
(SELECT THREAD# ,SEQUENCE# FROM V$LOG_HISTORY WHERE (THREAD#,FIRST_TIME ) IN (SELECT THREAD#,MAX(FIRST_TIME)
FROM V$LOG_HISTORY GROUP BY THREAD#)) APPL WHERE ARCH.THREAD# = APPL.THREAD# ORDER BY 1;
Thread Last Sequence Received Last Sequence Applied Difference
---------- ---------------------- --------------------- ----------
Switch log minimun 3 times
--------------------------
alter system switch logfile; or
alter system switch all logfile; or
alter system archive log current;
SELECT ARCH.THREAD# "Thread", ARCH.SEQUENCE# "Last Sequence Received", APPL.SEQUENCE# "Last Sequence Applied",
(ARCH.SEQUENCE# - APPL.SEQUENCE#) "Difference" FROM (SELECT THREAD# ,SEQUENCE# FROM V$ARCHIVED_LOG
WHERE (THREAD#,FIRST_TIME ) IN (SELECT THREAD#,MAX(FIRST_TIME) FROM V$ARCHIVED_LOG GROUP BY THREAD#)) ARCH,
(SELECT THREAD# ,SEQUENCE# FROM V$LOG_HISTORY WHERE (THREAD#,FIRST_TIME ) IN (SELECT THREAD#,MAX(FIRST_TIME)
FROM V$LOG_HISTORY GROUP BY THREAD#)) APPL WHERE ARCH.THREAD# = APPL.THREAD# ORDER BY 1;
Thread Last Sequence Received Last Sequence Applied Difference
---------- ---------------------- --------------------- ----------
0 OR min
==================================================================================================================
Method :4
=========
PRIMARY
========
Switch log minimun 3 times
--------------------------
alter system switch logfile; or
alter system switch all logfile; or
alter system archive log current;
select thread#,max(sequence#) from v$archived_log where archived='YES' group by thread# order by 1;
STANDBY
========
select thread#,max(sequence#) from v$archived_log where applied='YES' group by thread# order by 1;
==================================================================================================================
Method :5
=========
STANDBY
========
SELECT PROCESS, CLIENT_PROCESS, SEQUENCE#, STATUS,THREAD#, DELAY_MINS FROM GV$MANAGED_STANDBY;
PROCESS CLIENT_P SEQUENCE# STATUS
--------- -------- ---------- ------
MRP0 N/A 1000 APPLIED_LOG
select THREAD#,SEQUENCE#,STATUS,ARCHIVED from v$log; ------ the status of redo log files
LGWR RFS 1000 CURRENT
Both the above current values must be same.
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