Oracle 多主（Master Replication）复制配置

一、环境

windows server 2003 sp1；10g 10.1.0.2

主体定义站点：SID：db1 IP：10.1.8.201

主体站点：SID：db2 IP：10.1.9.49

二、配置

1. db1 上的操作

-- 确保下面参数配置

db_domain='mytest.com'

global_names=true

-- tnsnames.ora 配置

DB2 =

    (DESCRIPTION =

        (ADDRESS_LIST =

            (ADDRESS = (PROTOCOL = TCP)(HOST = 10.1.9.49)(PORT = 1521))

            )

        (CONNECT_DATA =

            (SID = db2)

            (GLOBAL_NAME = mytest.com)

            (SERVER = DEDICATED)

        )

    )

DB1 =

    (DESCRIPTION =

        (ADDRESS = (PROTOCOL = TCP)(HOST = 10.1.8.201)(PORT = 1521))

        (CONNECT_DATA =

            (SERVER = DEDICATED)

            (SERVICE_NAME = db1.mytest.com)

        )

    )

conn system 

-- 修改 global name

alter database rename global_name to db1.mytest.com;

-- 建立公共 db link

create public database link db2.mytest.com using 'db2';

-- 检查

select * from global_name@db2.mytest.com;

-- 建立复制管理员并授权

create user repadmin identified by repadmin default tablespace users temporary tablespace temp;

execute dbms_defer_sys.register_propagator('repadmin');

grant execute any procedure to repadmin;

execute dbms_repcat_admin.grant_admin_any_repgroup('repadmin');

execute dbms_repcat_admin.grant_admin_any_schema(username => '"REPADMIN"');

grant comment any table to repadmin;

grant lock any table to repadmin;

grant select any dictionary to repadmin;

conn repadmin

-- 建立 db link

create database link db2.mytest.com connect to repadmin identified by repadmin;

-- 检查

select * from global_name@db2.mytest.com;

conn system

-- 建立测试用户并授权

create user testuser identified by testuser default tablespace users temporary tablespace temp; 

grant connect, resource to testuser;

conn testuser

-- 建立测试用表

create table dept 

(deptno number(2) primary key, 

dname varchar2(14), 

loc varchar2(13) );

2. 在 db2 上进行与相似的操作

db_domain='mytest.com'

global_names=true

DB1 =

    (DESCRIPTION =

        (ADDRESS_LIST =

            (ADDRESS = (PROTOCOL = TCP)(HOST = 10.1.9.201)(PORT = 1521))

            )

        (CONNECT_DATA =

            (SID = db1)

            (GLOBAL_NAME = mytest.com)

            (SERVER = DEDICATED)

        )

    )

DB2 =

    (DESCRIPTION =

        (ADDRESS = (PROTOCOL = TCP)(HOST = 10.1.9.49)(PORT = 1521))

        (CONNECT_DATA =

            (SERVER = DEDICATED)

            (SERVICE_NAME = db2.mytest.com)

        )

    )

conn system

alter database rename global_name to db2.mytest.com;

create public database link db1.mytest.com using 'db1';

select * from global_name@db1.mytest.com;

create user repadmin identified by repadmin default tablespace users temporary tablespace temp;

execute dbms_defer_sys.register_propagator('repadmin');

grant execute any procedure to repadmin;

execute dbms_repcat_admin.grant_admin_any_repgroup('repadmin');

execute dbms_repcat_admin.grant_admin_any_schema(username => '"REPADMIN"');

grant comment any table to repadmin;

grant lock any table to repadmin;

grant select any dictionary to repadmin;

conn repadmin

create database link db1.mytest.com connect to repadmin identified by repadmin;

select * from global_name@db1.mytest.com;

conn system

create user testuser identified by testuser default tablespace users temporary tablespace temp; 

grant connect, resource to testuser;

conn testuser

create table dept 

(deptno number(2) primary key, 

dname varchar2(14), 

loc varchar2(13) );

3. 在 db1 上配置复制

conn repadmin

-- 创建复制组

execute dbms_repcat.create_master_repgroup('testuser_mg'); 

-- 检查

select gname,master,status from dba_repgroup where gname='TESTUSER_MG';

-- 在复制组里加入复制对象

execute dbms_repcat.create_master_repobject(sname=>'testuser',oname=>'dept', type=>'table',use_existing_object=>true,gname=>'testuser_mg',copy_rows=>false); 

-- 检查

select sname,oname,status,gname from dba_repobject where gname='testuser_mg';

-- 对复制对象产生复制支持

execute dbms_repcat.generate_replication_support('testuser','dept','table');

-- 检查

select gname, master, status from dba_repgroup where gname='TESTUSER_MG';

select sname,oname,status,gname from dba_repobject where gname='TESTUSER_MG';

-- 添加主体复制节点

execute dbms_repcat.add_master_database (gname=>'testuser_mg',master=>'db2.mytest.com',use_existing_objects=>true, copy_rows=>false, propagation_mode => 'synchronous'); 

-- 检查

column masterdef format a10

column master format a10

column dblink format a25

column gname format a12

select gname, dblink, masterdef MASTERDEF, master MASTER from sys.dba_repsites where gname='TESTUSER_MG';

-- 启动复制

execute dbms_repcat.resume_master_activity('testuser_mg',true); 

-- 检查

select gname,master,status from dba_repgroup where gname='TESTUSER_MG';

-- repadmin 用登录主体站点，检查复制对象情况

set linesize 120

select sname,oname,status,gname from dba_repobject where gname='TESTUSER_MG';

4. 测试

-- 在 db1 上增加数据

conn testuser

insert into dept values (1,'accounting','new york'); 

insert into dept values (2,'research','dallas'); 

insert into dept values (3,'sales','chicago'); 

insert into dept values (4,'operations','boston'); 

commit;

-- 检查 db2 的数据变化

conn testuser

select * from dept;

-- 在 db1 上进行表结构修改（DDL）

EXECUTE DBMS_REPCAT.EXECUTE_DDL(gname => 'testuser_mg',ddl_text => 'truncate table testuser.dept');

EXECUTE DBMS_REPCAT.EXECUTE_DDL(gname => 'testuser_mg',ddl_text => 'ALTER TABLE TESTUSER.DEPT ADD c1 NUMBER');

EXECUTE DBMS_REPCAT.EXECUTE_DDL(gname => 'testuser_mg',ddl_text => 'ALTER TABLE TESTUSER.DEPT DROP (C1)');

-- 检查 db2 的数据变化

conn testuser

desc dept

select * from dept;