GoldenGate单向复制配置(支持DDL复制)

在上一篇文件中的OGG单向复制配置不支持DLL的同步，只支持DML，因而本文在之前的基础上增加对DDL语句的复制，下面是简要配置过程记录！

一：验证之前的配置不支持DDL复制，这里在source端，新建一张表，发现无法复制到target端！target端也新建相同的表后，DML操作可以成功复制

[root@db1 ~]# su - oracle
[oracle@db1 ~]$ sqlplus hr/hr
SQL> create table t2 (id number primary key,name varchar2(20));
Table created.
SQL> conn hr/hr@db2
Connected.
SQL> select tname from tab where tname='T2';
no rows selected

SQL> create table t2 (id number primary key,name varchar2(20));
Table created.

SQL> conn hr/hr
Connected.
SQL> insert into t2 values (1,'one');
1 row created.

SQL> commit;
Commit complete.

SQL> conn hr/hr@db2
Connected.
SQL> select * from t2;

        ID NAME
---------- --------------------
         1 one

二：开始配置OGG支持DDL复制(在source端操作)
1：赋予ogg用户相应的权限，修改全局配置文件添加ggschema参数

SQL> conn /as sysdba
Connected.
SQL> grant execute on utl_file to ogg;
Grant succeeded.

[oracle@db1 ~]$ cd $GGATE
[oracle@db1 ogg]$ ggsci
GGSCI (db1) 1> edit param ./GLOBALS

GGSCI (db1) 2> view param ./GLOBALS
ggschema ogg

2：运行相关的sql脚本

[oracle@db1 ~]$ cd $GGATE
[oracle@db1 ogg]$ sqlplus /nolog
SQL> conn /as sysdba
Connected.
SQL> @marker_setup.sql

Marker setup script
You will be prompted for the name of a schema for the Oracle GoldenGate database objects.
NOTE: The schema must be created prior to running this script.
NOTE: Stop all DDL replication before starting this installation.

Enter Oracle GoldenGate schema name:ogg

Marker setup table script complete, running verification script...
Please enter the name of a schema for the GoldenGate database objects:
Setting schema name to OGG

MARKER TABLE
-------------------------------
OK

MARKER SEQUENCE
-------------------------------
OK

Script complete.

SQL> show parameter recyclebin;

NAME                                 TYPE        VALUE
------------------------------------ ----------- ------------------------------
recyclebin                           string      on

SQL> alter system set recyclebin=off;
System altered.

SQL> show parameter recyclebin;

NAME                                 TYPE        VALUE
------------------------------------ ----------- ------------------------------
recyclebin                           string      OFF

SQL> @ddl_setup.sql
Oracle GoldenGate DDL Replication setup script
Verifying that current user has privileges to install DDL Replication...
You will be prompted for the name of a schema for the Oracle GoldenGate database objects.
NOTE: For an Oracle 10g source, the system recycle bin must be disabled. For Oracle 11g and later, it can be enabled.
NOTE: The schema must be created prior to running this script.
NOTE: Stop all DDL replication before starting this installation.
Enter Oracle GoldenGate schema name:ogg

Working, please wait ...
Spooling to file ddl_setup_spool.txt

Checking for sessions that are holding locks on Oracle Golden Gate metadata tables ...
Check complete.
Using OGG as a Oracle GoldenGate schema name.
Working, please wait ...
RECYCLEBIN must be empty.
This installation will purge RECYCLEBIN for all users.
To proceed, enter yes. To stop installation, enter no.

Enter yes or no:yes
————————其他输出省略————————

STATUS OF DDL REPLICATION
---------------------------------------------------------------------------------------
SUCCESSFUL installation of DDL Replication software components

Script complete.

SQL> @role_setup.sql
GGS Role setup script
This script will drop and recreate the role GGS_GGSUSER_ROLE
To use a different role name, quit this script and then edit the params.sql script to change the gg_role parameter to the preferred name. (Do not run the script.)

You will be prompted for the name of a schema for the GoldenGate database objects.
NOTE: The schema must be created prior to running this script.
NOTE: Stop all DDL replication before starting this installation.

Enter GoldenGate schema name:ogg
Wrote file role_setup_set.txt
PL/SQL procedure successfully completed.

Role setup script complete

Grant this role to each user assigned to the Extract, GGSCI, and Manager processes, by using the following SQL command:
GRANT GGS_GGSUSER_ROLE TO <loggedUser>
where <loggedUser> is the user assigned to the GoldenGate processes.

SQL> grant ggs_ggsuser_role to ogg;
Grant succeeded.

SQL> @ddl_enable.sql
Trigger altered.

SQL> @?/rdbms/admin/dbmspool.sql
Package created.
Grant succeeded.
View created.
Package body created.

SQL> @ddl_pin.sql ogg
PL/SQL procedure successfully completed.
PL/SQL procedure successfully completed.
PL/SQL procedure successfully completed.

3：source端修改extract进程的params文件，添加"ddl include all"参数，重启extract进程

GGSCI (db1) 1> view params eora_t1
extract eora_t1
setenv (NLS_LANG=AMERICAN_AMERICA.AL32UTF8)
ddl include all
userid ogg,password ogg
exttrail ./dirdat/aa
table hr.*;

GGSCI (db1) 2> stop extract eora_t1
Sending STOP request to EXTRACT EORA_T1 ...
Request processed.

GGSCI (db1) 3> start extract eora_t1
Sending START request to MANAGER ...
EXTRACT EORA_T1 starting

GGSCI (db1) 4> info extract eora_t1
EXTRACT    EORA_T1   Last Started 2012-06-20 15:42   Status RUNNING
Checkpoint Lag       00:00:00 (updated 00:00:10 ago)
Log Read Checkpoint  Oracle Redo Logs
                     2012-06-20 15:42:58  Seqno 3, RBA 50044416
                     SCN 0.567478 (567478)

4：target端修改replicat进程的params文件，添加"ddl include all"和"ddlerror default ignore retryop maxretries 3 retrydelay 5" 参数，重启replicat进程

[root@db2 ~]# su - oracle
[oracle@db2 ~]$ cd $GGATE
[oracle@db2 ogg]$ ggsci
GGSCI (db2) 1> edit params rora_t1
GGSCI (db2) 2> view params rora_t1
replicat rora_t1
setenv (NLS_LANG=AMERICAN_AMERICA.AL32UTF8)
ddl include all
ddlerror default ignore retryop maxretries 3 retrydelay 5
userid ogg,password ogg
handlecollisions
assumetargetdefs
discardfile ./dirrpt/rora_t1.dsc,purge
map hr.* ,target hr.*;

GGSCI (db2) 3> stop replicat rora_t1
Sending STOP request to REPLICAT RORA_T1 ...
Request processed.

GGSCI (db2) 4> start replicat rora_t1
Sending START request to MANAGER ...
REPLICAT RORA_T1 starting

GGSCI (db2) 5> info replicat rora_t1
REPLICAT   RORA_T1   Last Started 2012-06-20 15:50   Status RUNNING
Checkpoint Lag       00:00:00 (updated 00:00:00 ago)
Log Read Checkpoint  File ./dirdat/pa000000
                     First Record  RBA 4780973

三：测试

[oracle@db1 ogg]$ sqlplus hr/hr
SQL> alter table t2 add location varchar2(200);
Table altered.

SQL> conn hr/hr@db2
Connected.
SQL> desc t2
 Name                                      Null?    Type
 ----------------------------------------- -------- ----------------------------
 ID                                        NOT NULL NUMBER
 NAME                                               VARCHAR2(20)
 LOCATION                                           VARCHAR2(200)

SQL> conn hr/hr
Connected.
SQL> create table t3 as select object_id,object_name from dba_objects;

Table created.

SQL> conn hr/hr@db2
Connected.
SQL> select tname from tab where tname='T3';

TNAME
------------------------------
T3

SQL> desc t3;
 Name                                      Null?    Type
 ----------------------------------------- -------- ----------------------------
 OBJECT_ID                                          NUMBER
 OBJECT_NAME                                        VARCHAR2(128)