（一）基础环境配置
| 源库 | 目标库 | |
| 操作系统版本 | CentOS Linux release 7.4 | CentOS Linux release 7.4 |
| IP地址 | 192.168.10.11 | 192.168.10.12 |
| 数据库版本 | 社区版 5.7.24 | 社区版 5.7.24 |
| 需要同步的数据库 | testdb（所有表） | testdb_repl |
| GoldenGate版本 | OGG-12.2.0.2 | OGG-12.2.0.2 |
说明：
1、oracle GoldenGate下载地址：https://edelivery.oracle.com/ 免费注册一个账号即可登入，直接搜索“goldengate for non oracle database”，找到想要的版本下载即可。
2、经过测试，使用OGG-11.2.0.1同步数据库会报错:
ERROR OGG-00146 VAM function VAMRead returned unexpected result: error 600 – VAM Client Report
更换为OGG-12.2.0.2后解决，故本文采用的Ogg版本是12.2.0.2。
（二）MySQL数据库初始信息
| 源库 | 目标库 | |
| MySQL安装位置（basedir） | /usr/local/mysql | /usr/local/mysql |
| 数据存放位置 （datadir） | /mysql/data | /mysql/data |
| 二进制日志位置 （log_bin） | /mysql/binlog | /mysql/binlog |
（三）MySQL数据库开启二进制日志
要使用ogg抽取数据，必须开启二进制日志。在mysql的配置文件/etc/my.cnf中配置二进制日志,重启数据库生效。
[mysqld]
# binlog配置
server_id = 1
binlog_format=ROW
log_bin=/mysql/binlog/master-bin
sync_binlog=1
expire_logs_days=1
（四）源端和目标端安装配置GoldenGate（源端和目标端都要执行）
（4、1）源端和目标端创建安装ogg，实际上ogg并不需要安装，解压就可以使用
创建ogg安装路径
[root@masterdb ~]# mkdir /ogg
将安装包拷贝到该路径下解压：
[root@masterdb ogg]# ls
ggs_Linux_x64_MySQL_64bit.tar
[root@masterdb ogg]# tar -xvf ggs_Linux_x64_MySQL_64bit.tar
./
./mysql_checklist.sql
...略
./libicuuc.so.56.1
[root@masterdb ogg]# ls
bcpfmt.tpl emsclnt libggnnzitp.so mysql.txt
bcrypt.txt extract libggparam.so notices.txt
cachefiledump freeBSD.txt libggperf.so oggerr
checkprm ggcmd libggrepo.so prvtclkm.plb
chkpt_mysql_create.sql ggMessage.dat libicudata.so.56 replicat
convchk ggparam.dat libicudata.so.56.1 retrace
convprm ggsci libicui18n.so.56 reverse
db2cntl.tpl ggs_Linux_x64_MySQL_64bit.tar libicui18n.so.56.1 server
defgen help.txt libicuuc.so.56 sqlldr.tpl
demo_mysql_create.sql keygen libicuuc.so.56.1 tcperrs
demo_mysql_insert.sql lib libmysqlclient.so.18 ucharset.h
demo_mysql_load.sql lib12 libxerces-c-3.1.so UserExitExamples
demo_mysql_misc.sql libantlr3c.so logdump usrdecs.h
dirout libdb-6.1.so mgr zlib.txt
dirwww libgglog.so mysql_checklist.sql
（4、2）使用ggsci创建ogg相关路径
[root@masterdb ogg]# pwd
/ogg
[root@masterdb ogg]# ./ggsci
Oracle GoldenGate Command Interpreter for MySQL
Version 12.2.0.2.2 OGGCORE_12.2.0.2.0_PLATFORMS_170630.0419
Linux, x64, 64bit (optimized), MySQL Enterprise on Jun 30 2017 06:32:17
Operating system character set identified as UTF-8.
Copyright (C) 1995, 2017, Oracle and/or its affiliates. All rights reserved.
GGSCI (masterdb) 1> create subdirs
Creating subdirectories under current directory /ogg
Parameter files /ogg/dirprm: created
Report files /ogg/dirrpt: created
Checkpoint files /ogg/dirchk: created
Process status files /ogg/dirpcs: created
SQL script files /ogg/dirsql: created
Database definitions files /ogg/dirdef: created
Extract data files /ogg/dirdat: created
Temporary files /ogg/dirtmp: created
Credential store files /ogg/dircrd: created
Masterkey wallet files /ogg/dirwlt: created
Dump files /ogg/dirdmp: created
（五）源端配置GoldenGate（源端执行）
（5、1）创建数据库用户ogg，该用户用来同步数据
mysql> GRANT ALL PRIVILEGES ON `testdb`.* TO 'ogg'@'%'IDENTIFIED BY 'ogg';
（5、2）配置管理进程mgr
GGSCI (masterdb) 1> edit param mgr
port 7809
dynamicportlist 7840-7939
purgeoldextracts /ogg/dirdat/*,usecheckpoints, minkeepdays 1
GGSCI (masterdb) 2> start mgr
Manager started.
GGSCI (masterdb) 3> info all
Program Status Group Lag at Chkpt Time Since Chkpt
MANAGER RUNNING
(5、3)配置捕获进程exta
GGSCI (masterdb) 5> edit param exta
extract exta
sourcedb testdb@192.168.10.11:3306 userid ogg password ogg
exttrail /ogg/dirdat/ea
discardfile /ogg/dirrpt/exta.dsc,append
TranLogOptions AltLogDest /mysql/binlog/master-bin.index
table testdb.*;
GGSCI (masterdb) 10> add extract exta,tranlog,begin now
EXTRACT added.
GGSCI (masterdb) 11> add exttrail /ogg/dirdat/ea,extract exta
EXTTRAIL added.
(5、4)配置投递进程dmpa
GGSCI (masterdb) 15> edit param dmpa
extract dmpa
passthru
sourcedb testdb@192.168.10.11:3306 userid ogg password ogg
rmthost 192.168.10.12,mgrport 7809,compress
rmttrail /ogg/dirdat/da
dynamicresolution
numfiles 3000
table testdb.*;
GGSCI (masterdb) 16> add extract dmpa ,exttrailsource /ogg/dirdat/ea
EXTRACT added.
GGSCI (masterdb) 17> add rmttrail /ogg/dirdat/da,extract dmpa
RMTTRAIL added.
(5、5)创建表定义文件，传送到目标端
（5、5.1）创建表定义文件
GGSCI (masterdb) 23> edit param defgen
defsfile ./dirdef/testdb.def
sourcedb testdb@192.168.10.11:3306 userid ogg, password ogg
table testdb.*;
GGSCI (masterdb) 26> exit
（5、5.2）生成表定义
[root@masterdb ogg]# ./defgen paramfile ./dirprm/defgen.prm
***********************************************************************
Oracle GoldenGate Table Definition Generator for MySQL
Version 12.2.0.2.2 OGGCORE_12.2.0.2.0_PLATFORMS_170630.0419
Linux, x64, 64bit (optimized), MySQL Enterprise on Jun 30 2017 07:27:58
Copyright (C) 1995, 2017, Oracle and/or its affiliates. All rights reserved.
Starting at 2020-02-08 18:15:40
***********************************************************************
Operating System Version:
Linux
Version #1 SMP Tue Aug 22 21:09:27 UTC 2017, Release 3.10.0-693.el7.x86_64
Node: masterdb
Machine: x86_64
soft limit hard limit
Address Space Size : unlimited unlimited
Heap Size : unlimited unlimited
File Size : unlimited unlimited
CPU Time : unlimited unlimited
Process id: 2510
***********************************************************************
** Running with the following parameters **
***********************************************************************
defsfile ./dirdef/testdb.def
sourcedb testdb@192.168.10.11:3306 userid ogg, password ***
table testdb.*;
Expanding wildcard table specification testdb.*:
Retrieving definition for testdb.test01.
Retrieving definition for testdb.test02.
Retrieving definition for testdb.test03.
Definitions generated for 3 tables in ./dirdef/testdb.def.
（5、5.3）传送到目标端
[root@masterdb ogg]# scp /ogg/dirdef/testdb.def 192.168.10.12:/ogg/dirdef/
root@192.168.10.12's password:
testdb.def 100% 1785 1.9MB/s 00:00
（六）目标端配置GoldenGate（目标端执行）
（6、1）创建数据库用户ogg，该用户用来同步数据
mysql> GRANT ALL PRIVILEGES ON `testdb_repl`.* TO 'ogg'@'%'IDENTIFIED BY 'ogg';
（6、2）配置管理进程mgr
GGSCI (slavedb) 3> edit param mgr
port 7809
dynamicportlist 7840-7939
purgeoldextracts /ogg/dirdat/*,usecheckpoints, minkeepdays 1
GGSCI (slavedb) 5> start mgr
Manager started.
GGSCI (slavedb) 6> info all
Program Status Group Lag at Chkpt Time Since Chkpt
MANAGER RUNNING
（6、3）配置检查表
GGSCI (slavedb) 9> dblogin sourcedb testdb_repl@192.168.10.12:3306 userid ogg password ogg
Successfully logged into database.
GGSCI (slavedb DBLOGIN as ogg) 10> add checkpointtable testdb_repl.checkpoint
Successfully created checkpoint table testdb_repl.checkpoint.
GGSCI (slavedb DBLOGIN as ogg) 11> edit params ./GLOBALS
checkpointtable testdb_repl.checkpoint
（6、4）配置应用进程repa
GGSCI (slavedb DBLOGIN as ogg) 13> edit params repa
replicat repa
targetdb testdb_repl@192.168.10.12:3306 userid ogg password ogg
handlecollisions
sourcedefs /ogg/dirdef/testdb.def
discardfile /ogg/dirrpt/repa.dsc,purge
map testdb.*, target testdb_repl.*;
GGSCI (slavedb DBLOGIN as ogg) 16> add replicat repa,exttrail /ogg/dirdat/da,checkpointtable testdb_repl.checkpoint
REPLICAT added.
（七）导入初始化数据
将源库需要同步的表导出，然后导入到目标数据库
# 源库导出，并传到目标数据库服务器上
[root@masterdb ~]# mysqldump -uroot -p123456 -h192.168.10.11 --single-transaction --flush-logs --master-data=2 testdb > testdb.sql
mysqldump: [Warning] Using a password on the command line interface can be insecure.
[root@masterdb ~]# ls
anaconda-ks.cfg testdb.sql wgetlog-02-05-20-22:27.log wgetlog-02-05-20-22:28.log wget.sh
[root@masterdb ~]# scp testdb.sql root@192.168.10.12:/root
root@192.168.10.12's password:
testdb.sql 100% 15MB 68.9MB/s 00:00
# 目标数据库执行导入
[root@slavedb ~]# mysql -uroot -p123456 testdb_repl < testdb.sql
mysql: [Warning] Using a password on the command line interface can be insecure.
（八）开启ogg同步进程
(8、1)源端开启捕获进程（源端执行）
由于数据库数据一直在变化，所以对于导出的testdb.sql文件，我们需要记录二进制日志文件的log_file和log_pos
[root@slavedb ~]# cat testdb.sql |grep "CHANGE MASTER TO MASTER_LOG_FILE"
-- CHANGE MASTER TO MASTER_LOG_FILE='master-bin.000005', MASTER_LOG_POS=154;
然后从导出时的binlog开始抽取
GGSCI (masterdb) 5> alter extract exta,vam,lognum 5,logpos 154
EXTRACT altered.
GGSCI (masterdb) 6> start exta
Sending START request to MANAGER ...
EXTRACT EXTA starting
（8、2）开启投递进程（源端执行）
GGSCI (masterdb) 19> start dmpa
Sending START request to MANAGER ...
EXTRACT DMPA starting
（8、3）开启应用进程（目标端执行）
GGSCI (slavedb DBLOGIN as ogg) 18> start repa
Sending START request to MANAGER ...
REPLICAT REPA starting
（九）确认同步状态
（9、1）使用info all查看进程是否运行正常
所有进程状态为“running”代表正常
源端：
GGSCI (masterdb) 8> info all
Program Status Group Lag at Chkpt Time Since Chkpt
MANAGER RUNNING
EXTRACT RUNNING DMPA 00:00:00 00:00:08
EXTRACT RUNNING EXTA 00:00:00 00:00:04
目标端：
GGSCI (slavedb DBLOGIN as ogg) 23> info all
Program Status Group Lag at Chkpt Time Since Chkpt
MANAGER RUNNING
REPLICAT RUNNING REPA 01:14:40 00:00:00
（9、2）源端手动插入数据，查看目标端是否同步
源端执行：
insert into test03 values(1,'a');
目标端查看数据是否同步过来：
mysql> use testdb_repl ;
Database changed
mysql> select * from test03;
+-----+------+
| id3 | name |
+-----+------+
| 1 | a |
+-----+------+
1 row in set (0.04 sec)
【完】
