OGG 18.1 for mysql远程捕获测试

Ogg18.1 remote
capture要求mysql为5.7版本，只能从linux远程捕获mysql on windows or linux，且不支持DDL捕获。支持远程mysql为community/commerical版本。

源端数据库配置

OGG登录DB的用户及密码：
ogg/Welcome!23

确保源库有打开日志

修改my.cnf，打开日志存放路径，并设置格式

[mysqld]

log-bin=/var/log/mysql/mysql-bin.log

确保运行mysql的用户有权访问这个目录.

重启mysqld之后，可以看到生成的日志

mysql中查看

mysql>show variables like
'log_%';

mysql>  show master logs;

+------------------------+-----------+

| Log_name               | File_size |

+------------------------+-----------+

| mysqlcs-mysql-1.000001 |       177
|

| mysqlcs-mysql-1.000002 |   7713925 |

+------------------------+-----------+

2 rows in set (0.00
sec)

查看日志内容

mysqlbinlog   mysqlcs-mysql-1.000001

源DB准备

创建testdb并授权

create database testdb;

CREATE USER 'ogg'@'192.168.1.53'
IDENTIFIED BY 'Welcome!23';

GRANT ALL PRIVILEGES ON *.* TO
'ogg'@'192.168.1.53' WITH GRANT OPTION;

FLUSH PRIVILEGES;

创建测试表

create table t1 (id int primary
key, name varchar(50));

create table t2_tgt (id int
primary key, name varchar(50));

create table t3 (id int, name
varchar(50));

OGG抽取配置

远程捕获不支持DDL同步。

确认OGG能远程连接到mysql

GGSCI > dblogin sourcedb
testdb@192.168.1.52, userid ogg, password Welcome!23

Successfully logged into
database.

GGSCI (DBLOGIN as root)
10>

Mgr.prm

Port 7809

ex1.prm

extract ex1

sourcedb testdb@192.168.1.52,
userid ogg, password Welcome!23

TRANLOGOPTIONS
ALTLOGDEST REMOTE

exttrail ./dirdat/ea

--ddl include mapped

table testdb.*;

GGSCI (DBLOGIN as root) 10> add
ext ex1, tranlog, begin now

EXTRACT added.

GGSCI (DBLOGIN as root) 11> add
exttrail ./dirdat/ea, ext ex1

EXTTRAIL added.

确认进程正常启动

Program     Status      Group       Lag at
Chkpt  Time Since Chkpt

MANAGER     RUNNING

EXTRACT     RUNNING     EX1         10:43:02      00:00:07

GGSCI (dbcs12c) 2> info
ex1

EXTRACT    EX1       Last Started 2018-11-05 21:25  Status RUNNING

Checkpoint Lag       10:43:02 (updated 00:00:09 ago)

Process ID           19857

VAM Read Checkpoint  2018-11-05 23:17:39.000000

Log Number: 2

Record
Offset: 7713925

已经可以读取日志

测试

Mysql插入数据

mysql> insert into testdb.t1
values(1,'bcs');

Query OK, 1 row affected (0.01
sec)

源DB上插入、更新、删除记录，抽取进程可正常捕获：

GGSCI (dbcs12c) 3> stats ex1,
total

Sending STATS request to EXTRACT
EX1 ...

Start of Statistics at 2018-11-06
10:01:27.

Output to ./dirdat/ea:

Extracting from testdb.t1 to
testdb.t1:

*** Total statistics since
2018-11-05 21:35:34 ***

Total inserts                                      2.00

Total
updates                                      4.00

Total deletes                                      1.00

Total discards                                     0.00

Total operations                                   7.00

Extracting from testdb.t3 to
testdb.t3:

*** Total statistics since
2018-11-05 21:35:34 ***

Total inserts                                      1.00

Total updates                                      2.00

Total deletes                                      0.00

Total discards                                     0.00

Total operations                                   3.00

End of Statistics.

查看队列文件，已经有捕获到新增数据

可以看到，通过远程捕获配置，goldengate仍然可以从mysql db中获取增量数据。

通过以上的配置，可以在一台linux 节点上，安装多个goldengate的介质，比如
OGG for oracle, ogg for mysql, ogg for bigdata等，从而实现类似HUB的机制，将数据的抽取和投递集中在一个节点上进行管理，降低数据集中和数据复制的运维复杂性。