Dataguard status sync -

Ref: http://select-star-from.blogspot.com.au/search/label/DATAGUARD
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);

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.



Display the Data Guard related messages in the alert log file.

ALTER SESSION SET NLS_DATE_FORMAT='DD-Mon-RR HH12:MI AM';
ALTER SESSION SET NLS_DATE_LANGUAGE=AMERICAN;
SELECT FACILITY, ERROR_CODE, TIMESTAMP, MESSAGE
FROM V$DATAGUARD_STATUS
WHERE TRUNC(TIMESTAMP)= TRUNC(SYSTIMESTAMP)
ORDER BY TIMESTAMP;


Check if there is any redo log gap. This should be run from the standby database.

SELECT THREAD#, LOW_SEQUENCE#, HIGH_SEQUENCE#
FROM V$ARCHIVE_GAP;


The following script is another way to check if there is any redo log gap, from the primary database:

SELECT MAX(SEQUENCE#), THREAD#
FROM V$ARCHIVED_LOG
WHERE RESETLOGS_CHANGE# = (SELECT MAX(RESETLOGS_CHANGE#) FROM V$ARCHIVED_LOG)
GROUP BY THREAD#;
SELECT DESTINATION, STATUS, ARCHIVED_THREAD#, ARCHIVED_SEQ#
FROM V$ARCHIVE_DEST_STATUS WHERE STATUS <> 'DEFERRED' AND STATUS <> 'INACTIVE'


In the standby database, examine the transport and apply lag statistics. Run the following script:

ALTER SESSION SET NLS_DATE_FORMAT='DD-Mon-RR HH12:MI AM';
ALTER SESSION SET NLS_DATE_LANGUAGE=AMERICAN;
SELECT NAME, VALUE, UNIT, TIME_COMPUTED
FROM V$DATAGUARD_STATS
WHERE NAME IN ('transport lag','apply lag','apply finish time');



In the standby database, list the processes that are running as part of the Data Guard configuration

SELECT PID, PROCESS, STATUS, CLIENT_PROCESS, CLIENT_PID, THREAD#, SEQUENCE# SEQ#, BLOCK#, BLOCKS
FROM V$MANAGED_STANDBY
ORDER BY PROCESS;

Comments

Post a Comment

Popular posts from this blog

QUERY DATAGUARD AND STANDBY STATUS

-- Find which logs were applied in the last day  SELECT SEQUENCE#, to_char(FIRST_TIME,'hh24:mi:ss dd/mm/yyyy'), to_char(NEXT_TIME,'hh24:mi:ss dd/mm/yyyy'),APPLIED FROM V$ARCHIVED_LOG where next_time>sysdate-1 ORDER BY SEQUENCE# ; -- Find last applied log   select to_char(max(FIRST_TIME),'hh24:mi:ss dd/mm/yyyy') FROM V$ARCHIVED_LOG where applied='YES';   -- What are the managed standby processes doing?   SELECT PROCESS, STATUS, THREAD#, SEQUENCE#, BLOCK#, BLOCKS FROM V$MANAGED_STANDBY;   -- Are we on production or standby?  SELECT DATABASE_ROLE, DB_UNIQUE_NAME INSTANCE, OPEN_MODE, PROTECTION_MODE, PROTECTION_LEVEL, SWITCHOVER_STATUS FROM V$DATABASE;   -- Check for errors  SELECT MESSAGE FROM V$DATAGUARD_STATUS;   -- Check that the DB was openned correctly   SELECT RECOVERY_MODE FROM V$ARCHIVE_DEST_STATUS; -- important lag statistics  select * from v$dataguard_stats;  -- co...
Read more

Blocking session on RAC database

Blocking session on RAC database Blocking session of the databases Generate the report for Blocking session The SQL will provide Blocking sessions with SID, node information SELECT DISTINCT S1.USERNAME || '@' || S1.MACHINE || ' ( INST=' || S1.INST_ID || ' SID=' || S1.SID || ' ) IS BLOCKING ' || S2.USERNAME || '@' || S2.MACHINE || ' ( INST=' || S1.INST_ID || ' SID=' || S2.SID || ' ) ' AS BLOCKING_STATUS FROM GV$LOCK L1, GV$SESSION S1, GV$LOCK L2, GV$SESSION S2 WHERE S1.SID=L1.SID AND S2.SID=L2.SID AND S1.INST_ID=L1.INST_ID AND S2.INST_ID=L2.INST_ID AND L1.BLOCK > 0 AND L2.REQUEST > 0 AND L1.ID1 = L2.ID1 AND L1.ID2 = L2.ID2; Blockers information select s1.username || '@' || s1.machine  || ' ( SID=' || s1.sid || ' ) is blocking '  || s2.username || '@' || s2.machine || ' ( SID=' || s2.sid || ' ) ' AS blocking_status from gv$lock l1, gv$session s...
Read more

Finding object size in Oracle database

Ref: http://www.runningoracle.com/product_info.php?cPath=2_44&products_id=153 Finding object size in Oracle database is very important and common. Is it very useful to know the exact size occupied by the object at the tablespace. The object size in the following scripts is in Mbytes. The scripts have been formatted to work very easily with TOAD SQL Editor. For example you can filter with tablespace_name, or owner, or size (for example more than 1GByte)  SELECT owner, segment_name, segment_type, partition_name, ROUND(bytes/(1024*1024),2) SIZE_MB, tablespace_name  FROM DBA_SEGMENTS  WHERE SEGMENT_TYPE IN ('TABLE', 'TABLE PARTITION', 'TABLE SUBPARTITION',  'INDEX', 'INDEX PARTITION', 'INDEX SUBPARTITION', 'TEMPORARY')  --AND TABLESPACE_NAME LIKE 'COSTE%'  --AND SEGMENT_NAME LIKE 'P2010201%'  --AND partition_name LIKE 'P20100201%' --AND segment_type = 'TABLE' --AND OWNER = 'TARG...
Read more