GoldenGate系列一：快速搭建单向同步GoldenGate环境

1、环境准备

（1）下载安装包并解压至ORACLE_BASE

（2）修改环境变更

[oracle@irms156ogg]$ vi ~/.bashrc
exportPATH=$ORACLE_HOME/bin:/u01/app/ogg:$PATH

（3）创建子目录

[oracle@irms157 ogg]$ ggsci
 
GGSCI (irms157) 1> create subdirs
 
Creating subdirectories under currentdirectory /u01/app/ogg
 
Parameter files                /u01/app/ogg/dirprm: alreadyexists
Report files                   /u01/app/ogg/dirrpt: created
Checkpoint files               /u01/app/ogg/dirchk: created
Process status files           /u01/app/ogg/dirpcs: created
SQL script files               /u01/app/ogg/dirsql: created
Database definitions files     /u01/app/ogg/dirdef: created
Extract data files             /u01/app/ogg/dirdat: created
Temporary files                /u01/app/ogg/dirtmp: created
Stdout files                   /u01/app/ogg/dirout: created

注：建议所有Goldengate操作均在Goldengate安装目录下进行。

2、开启管理进程

（1）创建管理进程参数文件

GGSCI (irms156) 1> edit params mgr
port 7809

（2）启动管理器

GGSCI(irms156) 2> start mgr 
Managerstarted. 
 
GGSCI(irms156) 3> info mgr 
Manager isrunning (IP port irms156.7809). 
 
GGSCI(irms156) 4> info all 
Program     Status     Group       Lag at Chkpt  Time Since Chkpt 
MANAGER     RUNNING  

3、在源端开启补充日志

（1）Oracle-specificinstallation steps

Thefollowing steps are only required when GoldenGate will be capturing data fromthe server. Therefore it is only needed when you are installing GoldenGate forOracle as your<source>environment.

[oracle@irms157 ogg]$ sqlplus /nolog
 
SQL> conn / as sysdba
Connected.
SQL> alter database add supplementallog data;
 
Database altered.
 
SQL> alter system switch logfile;
 
System altered.

（2）为具体模式对象开启补充日志（Add supplemental logging）

GGSCI (irms156) 9> dblogin useridsystem, password Lu123456;
Successfully logged into database.
 
GGSCI (irms156) 10> add trandatascott.emp;
ERROR: No viable tables matchedspecification.（注意不要有分号）
 
GGSCI (irms156) 11> add trandatascott.emp
 
Logging of supplemental redo dataenabled for table SCOTT.EMP.
 
GGSCI (irms156) 13> add trandata scott.salgrade
 
2013-05-14 14:29:47  WARNING OGG-00869  No unique key is defined for table'SALGRADE'. All viable columns will be used to represent the key, but may notguarantee uniqueness.  KEYCOLS may beused to define the key.
 
Logging of supplemental redo dataenabled for table SCOTT.SALGRADE.
 
GGSCI (irms156) 14> add trandatascott.bonus
 
2013-05-14 14:30:12  WARNING OGG-00869  No unique key is defined for table 'BONUS'.All viable columns will be used to represent the key, but may not guaranteeuniqueness.  KEYCOLS may be used todefine the key.
 
Logging of supplemental redo dataenabled for table SCOTT.BONUS.
 
GGSCI (irms156) 15> add trandatascott.dept
 
Logging of supplemental redo dataenabled for table SCOTT.DEPT.
 
GGSCI(irms156) 16> info trandata scott.emp 
 
Logging ofsupplemental redo log data is enabled for table SCOTT.EMP.
 
Columnssupplementally logged for table SCOTT.EMP: EMPNO.

3、数据准备

（1）在目标端创建与源端一样的表

（2）把源端的初始数据导入至目标端

由于本实验采用scott模式，在每个oracle数据库均已默认安装，因此不再需要准备。第2步可使用datapump，goldengatedirect load， sql*loader等方法。

4、配置源端提取

（1）增加抽取组

GGSCI (irms156) 1> add extracteoragd, tranlog, begin now, threads 1
EXTRACT added.
 
GGSCI (irms156) 2> info extracteoragd
 
EXTRACT    EORAGD   Initialized   2013-05-1414:58   Status STOPPED
Checkpoint Lag       00:00:00 (updated 00:00:13 ago)
Log Read Checkpoint  Oracle Redo Logs
                     2013-05-14 14:58:05  Thread 1, Seqno 0, RBA 0
                     SCN 0.0 (0)
Log Read Checkpoint  Oracle Redo Logs
                     2013-05-14 14:58:05  Thread 2, Seqno 0, RBA 0
                     SCN 0.0 (0)

（2）创建抽取进程参数文件

GGSCI (irms156) 3> edit params eoragd
 
EXTRACT EORAGD
USERID system, PASSWORD Lu123456
RMTHOST 10.252.48.155, MGRPORT 7809
RMTTRAIL ./dirdat/gd
TABLE scott.emp;
TABLE scott.dept;
TABLE scott.salgrade;
TABLE scott.bonus;
（3）Define the GoldenGate trail
add thetrail that will store the changes on the target.
GGSCI (irms156) 8> add RMTTRAIL./dirdat/gd, EXTRACT EORAGD
RMTTRAIL added.
GGSCI(irms156) 9> info rmttrail *
 
       Extract Trail: ./dir/gd
             Extract: EORAGD
               Seqno: 0
                 RBA: 0
           File Size: 5M
(4)启动抽取进程并验证
 
GGSCI (irms156) 10> start extracteoragd
 
Sending START request to MANAGER ...
EXTRACT EORAGD starting
 
GGSCI (irms156) 11> info extracteoragd, detail
GGSCI(irms156) 12> view report eoragd

5、配置目标端检查点表

（1）配置全局参数文件并增加检查点表(checkpoint table)

GGSCI (irms155) 1> edit params./globals
checkpointtablescott.ggschkpt

（2）激活GLOBALS参数文件

直接退出再进入ggsci即可生效。

GGSCI (irms155) 2> exit

（3）增加检查点表

GGSCI (irms155) 1> dblogin useridsystem, password Lu123456
Successfully logged into database.
 
GGSCI (irms155) 3> addcheckpointtable scott.ggschkpt
 
Successfully created checkpoint tablescott.ggschkpt.

6、配置目标端变更投递

（1）增加replicat组

GGSCI (irms155) 5> add replicatroranf, exttrail ./dirdat/gd, checkpointtable scott.ggschkpt
REPLICAT added.

与源端的配置保持一致。

（2）创建replicat参数文件

GGSCI (irms155) 7> edit params roranf
 
 
REPLICAT RORANF
USERID system, PASSWORD Lu123456
HANDLECOLLISIONS
ASSUMETARGETDEFS
DISCARDFILE ./dirrpt/RORANF.DSC, PURGE
MAP scott.emp, TARGET scott.emp;
MAP scott.salgrade, TARGET scott.salgrade;
MAP scott.bonus, TARGET scott.bonus;
MAP scott.dept, TARGET scott.dept;

（3）启动replicat进程

GGSCI (irms155) 8> start replicatroranf
 
Sending START request to MANAGER ...
REPLICAT RORANF starting
 
 
GGSCI (irms155) 9> info replicatroranf
 
REPLICAT   RORANF   Last Started 2013-05-14 15:39  Status RUNNING
Checkpoint Lag       00:00:00 (updated 00:00:09 ago)
Log Read Checkpoint  File ./dirdat/nf000000
                     First Record  RBA 0
 
 
GGSCI (irms155) 10> info all
 
Program     Status     Group       Lag at Chkpt  Time Since Chkpt
 
MANAGER     RUNNING                                          
REPLICAT    RUNNING    RORANF      00:00:00      00:00:02