OGG安装

环境介绍，为了节省资源OGG我选择和原库安装在了同一台服务器

1.1 解压ogg的安装包
上传并解压mysql ogg安装包，无需安装解压即可使用
 

# mkdir /ogg
# unzip 213000_ggs_Linux_x64_MySQL_64bit.zip
# tar -xvf ggs_Linux_x64_MySQL_64bit.tar

1.2 Mysql数据库配置
源库配置
OGG21C可以使用基于日志的DDL复制，要求添binlog_row_metadata为full模式才可以实现

# vi /etc/my.cnf
[mysqld]
datadir=/usr/local/mysql/data
basedir=/usr/local/mysql
socket=/tmp/mysql.sock
user=mysql
port=3306
character-set-server=utf8mb4
symbolic-links=0

server_id         = 1
log_bin           = mysql-bin
expire_logs_days  = 1
binlog_format     = row
binlog_row_metadata=full

[mysqld_safe]
log-error=/var/log/mysqld.log
pid-file=/var/run/mysqld/mysqld.pid

目标库配置

[mysqld]
datadir=/usr/local/mysql/data
basedir=/usr/local/mysql
socket=/tmp/mysql.sock
user=mysql
port=3306
character-set-server=utf8mb4
symbolic-links=0

server_id         = 2
log_bin           = mysql-bin
expire_logs_days  = 1
binlog_format     = row
binlog_row_metadata=full

[mysqld_safe]
log-error=/var/log/mysqld.log
pid-file=/var/run/mysqld/mysqld.pid

主备数据库创建同步用户并附权

CREATE USER 'ogg'@'%' IDENTIFIED BY 'Sandata@123';
GRANT ALL PRIVILEGES ON *.* TO 'ogg'@'%' WITH GRANT OPTION;
FLUSH PRIVILEGES;

1.3 OGG配置
在21C的OGG中ogg可以单独部署并不需要每台服务器都安装，只要网络可达即可

[root@mysql ogg]# ./ggsci 

Oracle GoldenGate Command Interpreter for MySQL
Version 21.3.0.0.0 OGGCORE_21.3.0.0.0_PLATFORMS_210728.1047
Oracle Linux 7, x64, 64bit (optimized), MySQL  on Jul 28 2021 18:17:46
Operating system character set identified as UTF-8.

Copyright (C) 1995, 2021, Oracle and/or its affiliates. All rights reserved.


GGSCI (mysql) 1> CREATE SUBDIRS
Creating subdirectories under current directory /ogg
Parameter file                 /ogg/dirprm: created.
Report file                    /ogg/dirrpt: created.
Checkpoint file                /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.
Master encryption key wallet files /ogg/dirwlt: created.
Dump files                     /ogg/dirdmp: created.

配置mgr进程

GGSCI (mysql) 36> edit param mgr

PORT 17809
DYNAMICPORTLIST 17810-17909
AUTORESTART EXTRACT *,RETRIES 5,WAITMINUTES 3
PURGEOLDEXTRACTS ./dirdat/*,usecheckpoints, minkeepdays 3

配置EXTRACT进程

GGSCI (mysql) 38> edit param EXM8

extract exm8
sourcedb wutong@192.168.2.251:3306, userid ogg, password Sandata@123
tranLogOptions altlogDest REMOTE
ddl include mapped
exttrail ./dirdat/m8
table wutong.*;

GGSCI (mysql) 39> add ext exm8, tranlog, begin now
GGSCI (mysql) 40> add exttrail ./dirdat/m8, ext exm8

配置配置REPLICAT进程,在21C的版本中已经不用配置pump进程

GGSCI (mysql) 2> edit param REP252

replicat rep252
targetdb wutong@192.168.2.252:3306, userid ogg, password Sandata@123
DDLERROR DEFAULT IGNORE RETRYOP
map wutong.*, target wutong.*;

启动所有进程

GGSCI (mysql) 3> info all

Program     Status      Group       Lag at Chkpt  Time Since Chkpt

MANAGER     RUNNING                                           
EXTRACT     RUNNING     EXM8        00:00:00      00:00:08    
REPLICAT    RUNNING     REP252      00:00:00      00:00:00

1.4 DDL、DML测试

主库
mysql> use wutong;
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A

Database changed

mysql> show tables;
+------------------+
| Tables_in_wutong |
+------------------+
| test2            |
+------------------+
1 row in set (0.00 sec)

目标库
mysql> use wutong;
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A

Database changed
mysql> show tables;
+------------------+
| Tables_in_wutong |
+------------------+
| test2            |
+------------------+
1 row in set (0.00 sec)


主库
mysql> create table sandata (id int,name varchar(20));
Query OK, 0 rows affected (0.07 sec)

mysql> insert into sandata values (1,'wutong');
Query OK, 1 row affected (0.04 sec)

mysql> select * from sandata
    -> ;
+------+--------+
| id   | name   |
+------+--------+
|    1 | wutong |
+------+--------+
1 row in set (0.00 sec)


目标库
mysql> show tables;
+------------------+
| Tables_in_wutong |
+------------------+
| test2            |
+------------------+
1 row in set (0.00 sec)

mysql> show tables;
+------------------+
| Tables_in_wutong |
+------------------+
| sandata          |
| test2            |
+------------------+
2 rows in set (0.00 sec)

mysql> select * from sandata;
+------+--------+
| id   | name   |
+------+--------+
|    1 | wutong |
+------+--------+
1 row in set (0.00 sec)

参考文档oracle官方手册
https://docs.oracle.com/en/middleware/goldengate/core/21.3/gghdb/using-oracle-goldengate-mysql.html