第八章：ogg初始化datapump

使用Data Pump 来进行初始化

（1）配置OGG 进程 datapump （参考datapump模式的搭建）

8.1在source和target database 上创建测试用户

--source database

SQL> create user sender identified by oracle default tablespace users temporary tablespace temp; --创建用户

User created.

SQL> grant connect,resource,dba to sender;

Grant succeeded.

2. --target database

SQL> create user receiver identified by oracle default tablespace users temporary tablespace temp; --创建用户

User created.

SQL> grant connect,resource,dba to receiver;

Grant succeeded.

8.2 配置SourceDB 的复制队列

GGSCI (ogg02) 10> dblogin userid ggs, password ggs

Successfully logged into database.

GGSCI (ogg02) 11> add extract ext1,tranlog, begin now

EXTRACT added.

GGSCI (ogg02) 12> add exttrail /u01/pjj/dirdat/lt, extract ext1

EXTTRAIL added.

修改抽取进程ext1参数：

GGSCI (ogg1) 13> edit params ext1

extract ext1

userid ggs, password ggs

exttrail /u01/pjj/dirdat/lt

ddl include mapped objname sender.*;

table sender.*;

8.2.1 增加Pump 进程

GGSCI (ogg1) 8> add extract dpump,exttrailsource /u01/pjj/dirdat/lt

EXTRACT added.

--这里指定我们localtrail 的位置。

GGSCI (ogg02) 18> add rmttrail /u01/pjj/dirdat/rt, extract dpump,megabytes 10 --trail文件的大小

RMTTRAIL added.

配置Data Pump 参数：
GGSCI (gg1) 56> view params dpump

extract dpump

userid ggs@ogg1, password ggs

dynamicresolution

passthru

rmthost 192.168.1.62, mgrport 7809

rmttrail /u01/ggs/dirdat/rt

table sender.*;

配置Data Pump 参数：
-----------------------------------------以这个为准
GGSCI (ogg02) 27> edit params dpump --查看一下

extract dpump

userid ggs, password ggs

dynamicresolution

passthru

rmthost 192.168.56.23, mgrport 7809

rmttrail /u01/pjj/dirdat/rt

table sender.*;

9. target 端

9.1 添加checkpointtable

GGSCI (ogg2) 1> dblogin userid ggs,password ggs

Successfully logged into database.

GGSCI (ogg2) 2> add checkpointtable ggs.checkpoint

Successfully created checkpoint table ggs.checkpoint.

9.2添加target replicat进程

GGSCI (ogg04) 1> add replicat rep1,exttrail /u01/pjj/dirdat/rt, checkpointtable ggs.checkpoint
REPLICAT added.

GGSCI (ogg04) 2> edit params rep1

replicat rep1
ASSUMETARGETDEFS

userid ggs,password ggs

discardfile /u01/pjj/dirdat/rep1_discard.txt,append, megabytes 10

DDL

map sender.*, target receiver.*;

--------------------------------------------------------------------------------------------------------

1.启动抽取进程和Data pump，不启动Rep1.
2. 创建directory
在source和target 端都创建该directory。

SQL> create directory backup as '/oradata/oggback';

Directory created.

确认：

SQL> select * from dba_directories;

OWNER DIRECTORY_NAME DIRECTORY_PATH

----- ------------------------- -----------------------------------------------------------------------

SYS BACKUP /u01/backup

SYS GGS_DDL_TRACE /u01/app/oracle/diag/rdbms/dave/dave/trace

SYS XMLDIR /u01/app/oracle/product/11.2.0/db_1/rdbms/xml

SYS DATA_PUMP_DIR /u01/app/oracle/admin/dave/dpdump/

SYS ORACLE_OCM_CONFIG_DIR /u01/app/oracle/product/11.2.0/db_1/ccr/state

3. 确认长事务已经完成

SQL> select start_time from v$transaction where to_date(start_time, 'yyyy-mm-dd hh24:mi:ss')<to_date('2014-03-22 05:02:26','yyyy-mm-dd hh24:mi:ss');

no rows selected

4. 获取源端获取数据库当前的SCN

SQL> select dbms_flashback.get_system_change_number from dual;

GET_SYSTEM_CHANGE_NUMBER

------------------------

748013

5. 在源端导出数据
$ expdp system/oracle directory=backup dumpfile=sender_%U.dmp logfile=user.log schemas=sender parallel=2 flashback_scn=748013;

6. 在Target 端导入

[oracle@ogg1 backup]$ scp *.dmp 192.168.56.23:/oradata/oggback

oracle@192.168.1.62's password:

sender_01.dmp 100% 304KB 304.0KB/s 00:00

sender_02.dmp 100% 36KB 36.0KB/s 00:00

[oracle@ogg1 backup]$

[oracle@ogg2 ggs]$ impdp system/oracle directory=backup dumpfile= sender_%U.dmp logfile=user.log parallel=2 table_exists_action=replace REMAP_SCHEMA=sender:receiver;

7. 用SCN 启动Replicat

GGSCI (ogg2) 17> start rep1, aftercsn 748013

GGSCI (ogg2) 18> info rep2

REPLICAT REP1 Last Started 2014-03-22 06:44 Status RUNNING

Checkpoint Lag 00:00:00 (updated 00:00:08 ago)

Process ID 19233

Log Read Checkpoint File /u01/ggs/dirdat/lt000000

First Record RBA 0

8. 验证同步情况