This post gives a real time demo of Oracle GoldenGate replication. For complete installation and set up, see this link
Terminologies used
OGG_source $ -- refers commands executed from source server
OGG_target $ -- refers commands executed from target server
SQL@OGG_source > -- refers commands executed from source SQLPLUS terminal
SQL@OGG_target > -- refers commands executed from target SQLPLUS terminal
GGSCI (source) -- refers commands executed from source GGSCI terminal
GGSCI (target) -- refers commands executed from target GGSCI terminal
At line 69, the initial extract is started from OS as a background process. The reason being the initial extract might run for hours depending on the amount of data it has to unload from the source database and hence to let it run without any issues till it completes, we are starting the process as a background process.
Also we are grepping the start time of the extract at line 74 to use it at a later time in the replication operation. See line 245 where this captured time is used.
Terminologies used
OGG_source $ -- refers commands executed from source server
OGG_target $ -- refers commands executed from target server
SQL@OGG_source > -- refers commands executed from source SQLPLUS terminal
SQL@OGG_target > -- refers commands executed from target SQLPLUS terminal
GGSCI (source) -- refers commands executed from source GGSCI terminal
GGSCI (target) -- refers commands executed from target GGSCI terminal
At line 69, the initial extract is started from OS as a background process. The reason being the initial extract might run for hours depending on the amount of data it has to unload from the source database and hence to let it run without any issues till it completes, we are starting the process as a background process.
Also we are grepping the start time of the extract at line 74 to use it at a later time in the replication operation. See line 245 where this captured time is used.
OGG_source $ cd $GGH
OGG_source $ ggsci
Oracle GoldenGate Command Interpreter for Oracle
Version 11.1.1.1 13067027
Solaris, sparc, 64bit (optimized), Oracle 9i on Oct 14 2011 08:02:21
Copyright (C) 1995, 2011, Oracle and/or its affiliates. All rights reserved.
GGSCI (source) 1> info all
Program Status Group Lag Time Since Chkpt
MANAGER RUNNING
GGSCI (source) 2> ADD EXTRACT DEMO1E, TRANLOG, THREADS 2, BEGIN NOW
EXTRACT added.
GGSCI (source) 3> ADD EXTTRAIL /backup/PRNETSDB/ogg/11.1/dirdat/ea, EXTRACT DEMO1E, Megabytes 200
EXTTRAIL added.
GGSCI (source) 4> start extract DEMO1E
Sending START request to MANAGER ...
EXTRACT DEMO1E starting
GGSCI (source) 5> info all
Program Status Group Lag Time Since Chkpt
MANAGER RUNNING
EXTRACT RUNNING DEMO1E 00:00:07 00:00:06
GGSCI (source) 6> ADD EXTRACT DEMO1P, EXTTRAILSOURCE /backup/PRNETSDB/ogg/11.1/dirdat/ea
EXTRACT added.
GGSCI (source) 7> ADD RMTTRAIL /backup/gg_kt/ogg/11.2/dirdat/pa, EXTRACT DEMO1P, Megabytes 100
RMTTRAIL added.
GGSCI (source) 8> start extract DEMO1P
Sending START request to MANAGER ...
EXTRACT DEMO1P starting
GGSCI (source) 9> info all
Program Status Group Lag Time Since Chkpt
MANAGER RUNNING
EXTRACT RUNNING DEMO1E 00:00:00 00:00:06
EXTRACT RUNNING DEMO1P 00:00:00 00:00:22
GGSCI (source) 10> ADD EXTRACT DEMO1I, sourceistable
EXTRACT added.
GGSCI (source) 11> exit
OGG_source $ nohup extract paramfile $GGH/dirprm/DEMO1I.prm reportfile $GGH/dirrpt/DEMO1I.rpt > DEMO1I.out 2>&1 &
[1] 17810
OGG_source $
[1] + Done nohup extract paramfile $GGH/dirprm/DEMO1I.prm reportfile $GGH/dirrpt/DEMO1I.rpt > DEMO1I.out 2>&1 &
OGG_source $ cd dirrpt
OGG_source $ more DEMO1I.rpt|grep "Starting at"
Starting at 2015-08-07 08:02:26
OGG_source $ sqlplus "/ as sysdba"
SQL*Plus: Release 9.2.0.7.0 - Production on Fri Aug 7 08:03:15 2015
Copyright (c) 1982, 2002, Oracle Corporation. All rights reserved.
Connected to:
Oracle9i Enterprise Edition Release 9.2.0.7.0 - 64bit Production
With the Partitioning, OLAP and Oracle Data Mining options
JServer Release 9.2.0.7.0 - Production
SQL@OGG_source > select count(*) from sdas.ogg_test;
COUNT(*)
----------
7004
********** Operation on Target system starts here **********
SQL@OGG_target > select count(*) from sdas.tgt_ogg_test;
COUNT(*)
----------
0
SQL@OGG_target > !
OGG_target $ cd $GGH
OGG_target $ ggsci
Oracle GoldenGate Command Interpreter for Oracle
Version 11.2.1.0.17 17888650 OGGCORE_11.2.1.0.0OGGBP_PLATFORMS_131215.2328_FBO
Linux, x64, 64bit (optimized), Oracle 11g on Dec 16 2013 03:43:25
Copyright (C) 1995, 2013, Oracle and/or its affiliates. All rights reserved.
GGSCI (target) 1> add rep TDEMO1I, exttrail /backup/gg_kt/ogg/11.2/dirdat/ia, nodbcheckpoint
REPLICAT added.
GGSCI (target) 2> start replicat TDEMO1I
Sending START request to MANAGER ...
REPLICAT TDEMO1I starting
GGSCI (target) 3> info all
Program Status Group Lag at Chkpt Time Since Chkpt
MANAGER RUNNING
REPLICAT RUNNING TDEMO1I 00:00:00 00:00:01
GGSCI (target) 4> stats replicat TDEMO1I
Sending STATS request to REPLICAT TDEMO1I ...
Start of Statistics at 2015-08-07 08:08:46.
Replicating from SDAS.OGG_TEST to SDAS.TGT_OGG_TEST:
*** Total statistics since 2015-08-07 08:08:29 ***
Total inserts 7004.00
Total updates 0.00
Total deletes 0.00
Total discards 0.00
Total operations 7004.00
*** Daily statistics since 2015-08-07 08:08:29 ***
Total inserts 7004.00
Total updates 0.00
Total deletes 0.00
Total discards 0.00
Total operations 7004.00
*** Hourly statistics since 2015-08-07 08:08:29 ***
Total inserts 7004.00
Total updates 0.00
Total deletes 0.00
Total discards 0.00
Total operations 7004.00
*** Latest statistics since 2015-08-07 08:08:29 ***
Total inserts 7004.00
Total updates 0.00
Total deletes 0.00
Total discards 0.00
Total operations 7004.00
End of Statistics.
GGSCI (target) 5> send rep TDEMO1I, getlag
Sending GETLAG request to REPLICAT TDEMO1I ...
Last record lag: 359 seconds.
At EOF, no more records to process.
GGSCI (target) 6> stop rep TDEMO1I
Sending STOP request to REPLICAT TDEMO1I ...
Request processed.
GGSCI (target) 7> exit
OGG_target $ exit
exit
SQL@OGG_target > select count(*) from sdas.tgt_ogg_test;
COUNT(*)
----------
7004
********** Insert and update some values in the source ************
SQL@OGG_source > insert into sdas.ogg_test values (20202,'Selvakumar Nagulan',sysdate,'N',20202);
1 row created.
SQL@OGG_source > update sdas.ogg_test set emp_name='Priyanka' where emp_id=7000;
1 row updated.
SQL@OGG_source > commit;
Commit complete.
SQL@OGG_source > select count(*) from sdas.ogg_test;
COUNT(*)
----------
7005
*********** Check the changes in target which still didn't reflect here ***********
*********** Do the rest of OGG operations to enable real time sync ****************
SQL@OGG_target > select * from sdas.tgt_ogg_test where emp_id=7000;
EMP_ID EMP_NAME JOINDATE S SALARY
---------- -------------------------------------------------- --------- - ----------
7000 Priya 20-MAY-15 A 7000
SQL@OGG_target > select * from sdas.tgt_ogg_test where emp_id=20202;
no rows selected
SQL@OGG_target > !
OGG_target $ ggsci
Oracle GoldenGate Command Interpreter for Oracle
Version 11.2.1.0.17 17888650 OGGCORE_11.2.1.0.0OGGBP_PLATFORMS_131215.2328_FBO
Linux, x64, 64bit (optimized), Oracle 11g on Dec 16 2013 03:43:25
Copyright (C) 1995, 2013, Oracle and/or its affiliates. All rights reserved.
GGSCI (target) 1> dblogin userid ggs_dba password ggs_dba
Successfully logged into database.
GGSCI (target) 2> ADD REPLICAT DEMO1R, EXTTRAIL /backup/gg_kt/ogg/11.2/dirdat/pa, checkpointtable ggs_dba.CHECKPOINT
REPLICAT added.
GGSCI (target) 3> ALTER REPLICAT DEMO1R, BEGIN 2015-08-07 08:02:26
REPLICAT altered.
GGSCI (target) 4> start replicat DEMO1R
Sending START request to MANAGER ...
REPLICAT DEMO1R starting
GGSCI (target) 5> info all
Program Status Group Lag at Chkpt Time Since Chkpt
MANAGER RUNNING
REPLICAT RUNNING DEMO1R 00:06:19 00:00:08
REPLICAT STOPPED TDEMO1I 00:00:00 00:02:48
GGSCI (target) 6> stats rep DEMO1R
Sending STATS request to REPLICAT DEMO1R ...
Start of Statistics at 2015-08-07 08:12:03.
Replicating from SDAS.OGG_TEST to SDAS.TGT_OGG_TEST:
*** Total statistics since 2015-08-07 08:11:44 ***
Total inserts 1.00
Total updates 1.00
Total deletes 0.00
Total discards 0.00
Total operations 2.00
*** Daily statistics since 2015-08-07 08:11:44 ***
Total inserts 1.00
Total updates 1.00
Total deletes 0.00
Total discards 0.00
Total operations 2.00
*** Hourly statistics since 2015-08-07 08:11:44 ***
Total inserts 1.00
Total updates 1.00
Total deletes 0.00
Total discards 0.00
Total operations 2.00
*** Latest statistics since 2015-08-07 08:11:44 ***
Total inserts 1.00
Total updates 1.00
Total deletes 0.00
Total discards 0.00
Total operations 2.00
End of Statistics.
GGSCI (target) 7> send rep DEMO1R, ggetlag
Sending GGETLAG request to REPLICAT DEMO1R ...
ERROR: unknown request.
2015-08-07 08:12:28 WARNING OGG-01742 Command sent to REPLICAT DEMO1R returned with an ERROR response.
GGSCI (target) 8> send rep DEMO1R, getlag
Sending GETLAG request to REPLICAT DEMO1R ...
Last record lag: 379 seconds.
At EOF, no more records to process.
GGSCI (target) 9> stop rep DEMO1R
Sending STOP request to REPLICAT DEMO1R ...
Request processed.
GGSCI (target) 10> exit
OGG_target $ exit
exit
SQL@OGG_target > select count(*) from sdas.tgt_ogg_test;
COUNT(*)
----------
7005
SQL@OGG_target > select * from sdas.tgt_ogg_test where emp_id=7000;
EMP_ID EMP_NAME JOINDATE S SALARY
---------- -------------------------------------------------- --------- - ----------
7000 Priyanka 20-MAY-15 A 7000
SQL@OGG_target > select * from sdas.tgt_ogg_test where emp_id=20202;
EMP_ID EMP_NAME JOINDATE S SALARY
---------- -------------------------------------------------- --------- - ----------
20202 Selvakumar Nagulan 07-AUG-15 N 20202
SQL@OGG_target > !
OGG_target $ ggsci
Oracle GoldenGate Command Interpreter for Oracle
Version 11.2.1.0.17 17888650 OGGCORE_11.2.1.0.0OGGBP_PLATFORMS_131215.2328_FBO
Linux, x64, 64bit (optimized), Oracle 11g on Dec 16 2013 03:43:25
Copyright (C) 1995, 2013, Oracle and/or its affiliates. All rights reserved.
GGSCI (target) 1> edit params DEMO1R
********* Here remove the HANDLECOLLISIONS line from the param file and start the replicat **********
GGSCI (target) 2> start rep DEMO1R
Sending START request to MANAGER ...
REPLICAT DEMO1R starting
GGSCI (target) 3> info all
Program Status Group Lag at Chkpt Time Since Chkpt
MANAGER RUNNING
REPLICAT RUNNING DEMO1R 00:00:00 00:00:06
REPLICAT STOPPED TDEMO1I 00:00:00 00:05:50
GGSCI (target) 4> exit
OGG_target $ exit
exit
********* The source and target are now in sync with real time replication enabled **********
SQL@OGG_source > insert into sdas.ogg_test values (30303,'Rafael Nadal',sysdate,'N',30303);
1 row created.
SQL@OGG_source > commit;
Commit complete.
SQL@OGG_source >
SQL@OGG_target >
SQL@OGG_target > select * from sdas.tgt_ogg_test where emp_id=30303;
EMP_ID EMP_NAME JOINDATE S SALARY
---------- -------------------------------------------------- --------- - ----------
30303 Rafael Nadal 07-AUG-15 N 30303
SQL@OGG_target >
Happy Replicating!!
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