source源端 oracle 11.2.0.4 ogg12c
ip:10.200.3.193 系统centos 7.1
1. 创建source表和一些初始化数据
su - oracle
sqlplus / as sysdba
SQL>alter database add supplemental log data;
SQL>select supplemental_log_data_min from v$database;
SQL>alter database forcelogging;
SQL> select supplemental_log_data_min from v$database;
NO
SQL> alter database add supplemental log data;
Database altered.
SQL> alter system switch logfile;
System altered.
SQL> select supplemental_log_data_min from v$database;
YES
SQL> create tablespace ggs;
Tablespace created.
SQL> create user ggs identified by ggs default tablespace ggs;
User created.
SQL> grant connect,resource,dba to ggs;
SQL> alter system set undo_retention=86400;
System altered.
SQL> grant flashback any table to ggs;
先配置参数进行静默安装---参考centos7.1之goldengate12c的安装
2.在source源端上创建Manager参数文件并指定端口和一些需要的参数选项：
cd /u01/app/ggs
./ggsci
创建相关目录：GGSCI (testtech3-193) 1> create subdirs
配置mgr
view params mgr
port 7809
dynamicportlist 7810-7820,7830
启动start mgr
GGSCI (testtech3-193) 1> dblogin userid ggs password ggs
Successfully logged into database.
GGSCI (testtech3-193) 1> REGISTER EXTRACT ext1 DATABASE
GGSCI (testtech3-193) 2> add trandata workflow.act_ru_execution
3.编辑defgen文件
vi /u01/app/ggs/dirprm/defgen.prm
defsfile /u01/app/ggs/dirdef/table_del,purge
userid ggs, password ggs
table WORKFLOW.act_ru_execution;
cd /u01/app/ggs
defgen paramfile /u01/app/ggs/dirprm/defgen.prm
cd /app/ggs/dirdef/
把文件复制到目标端的/app/ggs/dirdef/
4.在source源端上执行以下命令添加一个Extract进程叫做init进行数据初始化：
cd /u01/app/ggs
GGSCI (testtech3-193)>./ggsci
GGSCI (testtech3-193)>add extract init,sourceistable
GGSCI (testtech3-193)>info extract *, task
GGSCI (testtech3-193)>edit params init
extract init
userid ggs password ggs
rmthost 10.200.3.178,mgrport 8809
rmttask replicat,group repinit
table WORKFLOW.act_ru_execution;
目标端target mysql5.6 ogg 12c
ip：10.200.3.178 系统centos 7.1
1.创建目标端target数据库和相应的表
mysql -uroot -p
创建用于OGG使用登陆的数据库，例如需要存放checkpoint table
mysql> create database ogg;
Query OK, 1 row affected (0.00 sec)
mysql> grant all on . to [email protected] identified by ‘ggs‘;
Query OK, 0 rows affected (0.00 sec)
mysql> flush privileges;
Query OK, 0 rows affected (0.02 sec)
2.创建目标端target应用进程
GGSCI (techtest3-178)>dblogin sourcedb [email protected]:3306 userid ogg password ggs
GGSCI (techtest3-178)>add checkpointtable ogg.ck_table
GGSCI (techtest3-178)>add replicat repdel,exttrail /u01/app/ggs/dirdat/dl,checkpointtable ogg.ck_table
GGSCI (techtest3-178)>edit params repdel
replicat repdel
targetdb [email protected]:3306 userid ogg password ggs
handlecollisions
SOURCECHARSET zhs16gbk ----源端字符集，一定要设置，特别是源端和目标端字符集不一致的情况，此参数必设置。
sourcedefs /u01/app/ggs/dirdef/table_def
discardfile /u01/app/ggs/dirrpt/repdel.dsc,purge
map WORKFLOW.act_ru_execution, target activiti.act_ru_execution;
由于是异构环境，所以要指定sourcedefs参数，使用source数据库的数据定义文件。
handlecollisions参数来处理初始化加载的结果与实时改变同步捕获数据的冲突。
目标端：view params mgr
port 8809
DYNAMICPORTLIST 8840-8850
ACCE×××ULE, PROG REPLICAT, IPADDR 10.200.3.139 ALLOW
3.目标端target创建初始化加载交付参数文件
GGSCI (techtest3-178)>add replicat repinit,specialrun
GGSCI (techtest3-178)>edit params repinit
replicat repinit
targetdb [email protected]:3306 userid ogg password ggs
sourcedefs /u01/app/ggs/dirdef/table_def
discardfile /u01/app/ggs/dirrpt/repinit.dsc,purge
sqlexec "SET FOREIGN_KEY_CHECKS=0"
map WORKFLOW.act_ru_execution, target activiti.act_ru_execution;
4.在source源端添加Extract组
GGSCI (testtech3-193) > ADD EXTRACT extdel,TRANLOG, BEGIN NOW
GGSCI (testtech3-193) >edit params extdel
EXTRACT extdel
userid ggs, password ggs
GETTRUNCATES
REPORTCOUNT EVERY 1 MINUTES, RATE
numfiles 5000
DISCARDFILE ./dirrpt/extdel.dsc, APPEND, MEGABYTES 1000
WARNLONGTRANS 2h, CHECKINTERVAL 3m
EXTTRAIL ./dirdat/dl
TRANLOGOPTIONS CONVERTUCS2CLOBS
THREADOPTIONS MAXCOMMITPROPAGATIONDELAY 60000
DBOPTIONS ALLOWUNUSEDCOLUMN
table WORKFLOW.act_ru_execution;
GGSCI (testtech3-193) >add exttrail ./dirdat/dl, extract extdel, megabytes 500
GGSCI (testtech3-193) >ADD EXTRACT dpedel, EXTTRAILSOURCE ./dirdat/dl
GGSCI (testtech3-193) >edit params dpedel
EXTRACT dpedel
RMTHOST 10.200.3.178, MGRPORT 8809, compress
PASSTHRU
numfiles 50000
RMTTRAIL ./dirdat/dl
DYNAMICRESOLUTION
table WORKFLOW.act_ru_execution;
GGSCI (testtech3-193) >ADD RMTTRAIL ./dirdat/dl, EXTRACT dpedel, megabytes 500
以下是启动抽取和投递进程，由于oracle到mysql初始化无法做到像oracle一样的利用scn等。
大致思路是，先进程抽取数据，然后进行初始化操作。等初始化完了，启动应用进程会有冲突，处理冲突，解决问题。最后做数据对比。
GGSCI (testtech3-193) >start extdel
GGSCI (testtech3-193) >start dpedel
5.源端source启动初始化加载数据
在source源端启动之前配置的初始化加载提取任务init：
GGSCI (testtech3-193) >start init
在目标端target端看初始化数据加载复制进程的报告确认加载成功：
GGSCI (techtest3-178)> view report repinit
init初始化结束以后，进程会自动重启
6.最后目标端target启动repdel
确认初始化数据加载完成后关闭改变同步Replicat进程repdel的handlecollisions。
GGSCI (techtest3-178) 1> send repdel,nohandlecollisions
并将repdel参数文件中的handlecollisions参数去除，防止repdel下次启动时handlecollisions被再次启用。
最后验证数据：初始化数据，变更数据等
原文地址：http://blog.51cto.com/3048449/2133388