DM8使用DM管理工具图形化&脚本 方式创建DATA REPLICATION

环境 说明

操作系统: Centos7.6

主机名	IP	实例名	角色
dm1	192.168.31.166	dm1	RPS
dm2	192.168.31.168	dm2	主
dm3	192.168.31.169	dm3	从

填好三台/etc/hosts表

[dmdba@dm1 ini_script]$ cat /etc/hosts
127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4
::1         localhost localhost.localdomain localhost6 localhost6.localdomain6
192.168.31.166  dm1
192.168.31.168  dm2
192.168.31.169  dm3

开好归档。

disql SYSDBA/SYSDBA
alter database mount;
alter database add archivelog 'DEST=/dm/dmarch,TYPE=local,FILE_SIZE=256,space_limit=0';
alter database archivelog;
alter database open;
select arch_mode from v$database;

打开dm.ini中的mal_ini参数

[dmdba@dm1 ~]$ cat /dm/dmdbms/data/dm1/dm.ini |grep MAL_INI
                MAL_INI                         = 1                     #dmmal.ini

创建dmmal.ini
[dmdba@dm1 ~]$ cd /dm/dmdbms/samples/ini_script
[dmdba@dm1 ini_script]$ vi dmmal.ini

MAL_CHECK_INTERVAL = 5
MAL_CONN_FAIL_INTERVAL = 5

[MAL_dm1]
MAL_INST_NAME = dm1
MAL_HOST = dm1
MAL_PORT = 5241
MAL_INST_PORT = 5236 
MAL_INST_HOST = dm1

[MAL_dm2]
MAL_INST_NAME = dm2
MAL_HOST = dm2
MAL_PORT = 5242
MAL_INST_PORT = 5236 
MAL_INST_HOST = dm2

[MAL_dm3] 
MAL_INST_NAME = dm3
MAL_HOST = dm3
MAL_PORT = 5243
MAL_INST_PORT = 5236 
MAL_INST_HOST = dm3

cp dmmal.ini   /dm/dmdbms/data/dm1/.

同步到另外二台主机相应的位置

 重启实例

[dm1]#systemctl restart DmServicedm1.service

[dm2]#systemctl restart DmServicedm2.service

[dm3]#systemctl restart DmServicedm3.service

 

 

1)复制组表(SYSREP.RPS_GROUPS)
2)复制节点实例表(SYSREP.RPS_INSTANCES)
3)复制关系表(SYSREP.RPS_REPLICATIONS)
4)复制映射表( SYSREP.RPS_TABMAPS)
5)故障历史表(SYSREP.REP_FAULT_HISTORY)
6)冲突历史表( SYSREP.RPS_CONFLICTS)
7)复制定时器表(SYSREP.RPS_TIMERS)

初始化dm1

[dmdba@dm1 ini_script]$ disql sysdba/sysdba

Server[LOCALHOST:5236]:mode is normal, state is open
login used time: 3.174(ms)
disql V8
SQL> SP_INIT_REP_SYS(1);
DMSQL executed successfully
used time: 14.797(ms). Execute id is 991.
SQL> conn SYSREP/SYSREP

Server[LOCALHOST:5236]:mode is normal, state is open
login used time: 3.162(ms)
SQL> select table_name from user_tables;

LINEID     TABLE_NAME       
---------- -----------------
1          RPS_GROUPS
2          RPS_INSTANCES
3          RPS_REPLICATIONS
4          RPS_TABMAPS
5          RPS_FAULT_HISTORY
6          RPS_CONFLICTS
7          RPS_TIMERS

7 rows got

used time: 29.948(ms). Execute id is 992.
SQL> 

未初始化-也可以通过图形化界面初始化

已经初始化

创建New Replication Group

call SP_RPS_ADD_GROUP('test-repg','');

创建Table Replication Map

 

 

将DM2的test用户下的test_1表同步至DM3下的test用户下的test_1

call SP_RPS_SET_BEGIN('test-repg');

call SP_RPS_ADD_REPLICATION('test-repg','test-rep','','DM2','DM3',NULL,'/dm/dmarch');

call SP_RPS_SET_APPLY();

 

 

测试，在DM2下插入3条数据，并commit；

在DM3下查看表，已经被同步过来。

 由于在创建Table Replication Map时勾选了readonly，所以DM3下的表无法插入。

其它表不受影响

其它（用户复制）

call SP_RPS_SET_BEGIN('test-repg');
call SP_RPS_ADD_SCH_MAP('test-rep','test','test',1);
call SP_RPS_SET_APPLY();

 

测试：

支持ddl不支持dml

原的历史数据未同步。如果需要同步历史数据，需要将时间戳打上，全量由dmp传输。

SQL> begin
2   for i in 1 .. 100
3   loop
4   insert into test2 values (i,  'test');
5   commit;
6   end loop;
7   end;
8   /
DMSQL executed successfully
used time: 356.875(ms). Execute id is 82.
SQL> 
SQL> select count(*) from test2;

LINEID     COUNT(*)            
---------- --------------------
1          300

used time: 0.857(ms). Execute id is 83.
SQL> 

 目标的数据，为增量数据，数据比原少200条

SQL>  create table test2(id int,sdate char(20));
executed successfully
used time: 3.798(ms). Execute id is 246.
SQL> select count(*) from test2;

LINEID     COUNT(*)            
---------- --------------------
1          100

used time: 0.507(ms). Execute id is 447.
SQL>