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基于OGG实现Oracle实时同步MySQL

前言

本文详细阐述了基于OGG实现Oracle实时同步MySQL全过程

1.架构设计

基于OGG实现Oracle实时同步MySQL-LMLPHP

基于OGG实现Oracle实时同步MySQL-LMLPHP

2.OGG安装部署

2.1 OGG for Oracle

2.环境变量如下
vi .bash_profile

export GG_HOME=/oraogg/goldengate
export PATH=$PATH:$HOME/bin:$ORACLE_HOME/bin:$GG_HOME
export LD_LIBRARY_PATH=$ORACLE_HOME/lib:/lib:/usr/lib
alias ggsci='cd $GG_HOME;ggsci'

source .bash_profile

3.静默安装
cd /oraogg/fbo_ggs_Linux_x64_Oracle_shiphome/Disk1/response
vi /oraogg/fbo_ggs_Linux_x64_Oracle_shiphome/Disk1/response/oggcore.rsp

--只修改如下3个地方即可。
INSTALL_OPTION=ora19c
SOFTWARE_LOCATION=/oraogg/goldengate
INVENTORY_LOCATION=/u01/app/oraInventory
/u01/app/oracle/product/19.3.0/db_1

基于OGG实现Oracle实时同步MySQL-LMLPHP

2.2 OGG for MySQL

5.环境变量设置
vi .bash_profile

export GG_HOME=/oggmysql
export PATH=$PATH:$HOME/bin:$GG_HOME
alias ggsci='cd $GG_HOME;ggsci'

source .bash_profile

基于OGG实现Oracle实时同步MySQL-LMLPHP

3.Oracle相关配置

3.1 参数调整

SYS@oradb> select name,supplemental_log_data_min , force_logging, log_mode from v$database;
NAME               SUPPLEMENTAL_LOG FORCE_LOGGING     LOG_MODE
------------------ ---------------- ----------------- ------------------------
ORCLCDB            YES              YES               ARCHIVELOG

3.2 新增用户

-- OGG管理用户
SYS@oradb> alter session set container=ORCLPDB1;

CREATE USER ogg identified by oracle;
GRANT DBA to ogg;
grant SELECT ANY DICTIONARY to ogg;
GRANT EXECUTE ON SYS.DBMS_LOCK TO ogg;
grant select any transaction to ogg;
grant select any table to ogg;
grant flashback any table to ogg;
grant alter any table to ogg;

exec dbms_goldengate_auth.grant_admin_privilege('OGG','*',TRUE); 


-- 业务用户
CREATE USER rptuser identified by oracle;
GRANT DBA to rptuser ;
grant SELECT ANY DICTIONARY to rptuser;
GRANT EXECUTE ON SYS.DBMS_LOCK TO rptuser;

4.MySQL数据初始化

1.生成MySQL端DDL语句
可以使用Navicat的数据传输功能或其它工具直接从Oracle端生成MySQL类型的建表语句如下：

mysql -uroot -proot
create database rptdb;

mysql -uroot -proot -h 172.18.12.91 -D rptdb -f < ddl.sql


2.DDL语句如下
SET NAMES utf8; 
SET FOREIGN_KEY_CHECKS = 0; 

DROP TABLE IF EXISTS `ADDRESSES`; 
CREATE TABLE `ADDRESSES` 
( `ADDRESS_ID` decimal(12, 0) NOT NULL, 
`CUSTOMER_ID` decimal(12, 0) NOT NULL, 
`DATE_CREATED` datetime NOT NULL, 
`HOUSE_NO_OR_NAME` varchar(60) NULL, 
`STREET_NAME` varchar(60) NULL, 
`TOWN` varchar(60) NULL, 
`COUNTY` varchar(60) NULL, 
`COUNTRY` varchar(60) NULL, 
`POST_CODE` varchar(12) NULL, 
`ZIP_CODE` varchar(12) NULL, 
PRIMARY KEY (`ADDRESS_ID`), 
INDEX `ADDRESS_CUST_IX`(`CUSTOMER_ID` ASC) 
);

----- Table structure for CARD_DETAILS ----
DROP TABLE IF EXISTS `CARD_DETAILS`; 
CREATE TABLE `CARD_DETAILS` 
( `CARD_ID` decimal(12, 0) NOT NULL, 
`CUSTOMER_ID` decimal(12, 0) NOT NULL, 
`CARD_TYPE` varchar(30) NOT NULL, 
`CARD_NUMBER` decimal(12, 0) NOT NULL, 
`EXPIRY_DATE` datetime NOT NULL, 
`IS_VALID` varchar(1) NOT NULL, 
`SECURITY_CODE` decimal(6, 0) NULL, 
PRIMARY KEY (`CARD_ID`), 
INDEX `CARDDETAILS_CUST_IX`(`CUSTOMER_ID` ASC) 
);


---- Table structure for CUSTOMERS ----
DROP TABLE IF EXISTS `CUSTOMERS`; 
CREATE TABLE `CUSTOMERS` 
( `CUSTOMER_ID` decimal(12, 0) NOT NULL, 
`CUST_FIRST_NAME` varchar(40) NOT NULL, 
`CUST_LAST_NAME` varchar(40) NOT NULL, 
`NLS_LANGUAGE` varchar(3) NULL, 
`NLS_TERRITORY` varchar(30) NULL, 
`CREDIT_LIMIT` decimal(9, 2) NULL, 
`CUST_EMAIL` varchar(100) NULL, 
`ACCOUNT_MGR_ID` decimal(12, 0) NULL, 
`CUSTOMER_SINCE` datetime NULL, 
`CUSTOMER_CLASS` varchar(40) NULL, 
`SUGGESTIONS` varchar(40) NULL, 
`DOB` datetime NULL, `MAILSHOT` varchar(1) NULL, 
`PARTNER_MAILSHOT` varchar(1) NULL, 
`PREFERRED_ADDRESS` decimal(12, 0) NULL, 
`PREFERRED_CARD` decimal(12, 0) NULL, 
PRIMARY KEY (`CUSTOMER_ID`), 
INDEX `CUST_ACCOUNT_MANAGER_IX`(`ACCOUNT_MGR_ID` ASC), 
INDEX `CUST_DOB_IX`(`DOB` ASC), 
INDEX `CUST_EMAIL_IX`(`CUST_EMAIL` ASC) 
);

5.Oracle OGG设置

基于OGG实现Oracle实时同步MySQL-LMLPHP

6.MySQL OGG设置

7.全量同步数据

Oracle全量同步到MySQL
注意：在此阶段，源端需要停业务，不能产生新数据。

-- oracle端
edit params ext0
EXTRACT ext0
USERIDALIAS ora19c
rmthost 127.0.0.1,mgrport 8809
rmttask replicat,group rep0
TABLE RPTUSER.ADDRESSES;
TABLE RPTUSER.CARD_DETAILS;
TABLE RPTUSER.CUSTOMERS;

add extract ext0 ,sourceistable
delete extract ext0



-- MySQL端
edit params rep0
replicat rep0
targetdb rptdb@172.18.12.91:3306 userid root password root
map RPTUSER.ADDRESSES, target rptdb.ADDRESSES;
map RPTUSER.CARD_DETAILS, target rptdb.CARD_DETAILS;
map RPTUSER.CUSTOMERS, target rptdb.CUSTOMERS;

add replicat rep0 ,specialrun
delete replicat rep0


-- 直接启动源端ext0即可，rep0不用启动,MGR会自动启动它，等同步结束，它会自动关闭
start ext0


-- 查看日志
info rep0,showch
view report rep0

--登录验证数据
mysql -uroot -proot -h 172.18.12.91 -D rptdb

mysql> select count(*) from ADDRESSES;
+----------+
| count(*) |
+----------+
|      150 |
+----------+
1 row in set (0.04 sec)

mysql> select count(*) from CARD_DETAILS;
+----------+
| count(*) |
+----------+
|      150 |
+----------+
1 row in set (0.05 sec)

mysql> select count(*) from CUSTOMERS;
+----------+
| count(*) |
+----------+
|      100 |
+----------+
1 row in set (0.04 sec)

GGSCI (ogg21all as ogg@oradb) 21> info ext0

Extract    EXT0      Last Started 2023-11-25 18:58   Status STOPPED
Checkpoint Lag       Not Available
Log Read Checkpoint  Table RPTUSER.CUSTOMERS
                     2023-11-25 18:58:46  Record 100
Task                 SOURCEISTABLE

基于OGG实现Oracle实时同步MySQL-LMLPHP

8.增量时实同步

8.1 Oracle端

基于OGG实现Oracle实时同步MySQL-LMLPHP

8.2 MySQL端

基于OGG实现Oracle实时同步MySQL-LMLPHP

9.测试同步

1.Oracle端测试产生数据
SYS@oradb> DELETE FROM RPTUSER.ADDRESSES WHERE ADDRESS_ID=150;

GGSCI (ogg21all as ogg@oradb) 21> stats exto,total

Sending STATS request to Extract group EXTO ...

Start of statistics at 2023-11-25 19:36:13.

Output to ./dirdat/eo:

Extracting from RPTUSER.ADDRESSES to RPTUSER.ADDRESSES:

*** Total statistics since 2023-11-25 19:25:02 ***
    Total inserts                              0.00
    Total updates                              0.00
    Total deletes                              1.00
    Total upserts                              0.00
    Total discards                             0.00
    Total operations                           1.00

End of statistics.

2.mysql端插入数据
mysql -uroot -proot -h 172.18.12.91 -D rptdb
mysql> select count(*) from ADDRESSES;

GGSCI (ogg21all) 18> stats repm,total

Sending STATS request to Replicat group REPM ...

Start of statistics at 2023-11-25 19:56:10.

Replicating from RPTUSER.ADDRESSES to rptdb.ADDRESSES:

*** Total statistics since 2023-11-25 19:54:49 ***
    Total inserts                              0.00
    Total updates                              0.00
    Total deletes                              1.00
    Total upserts                              0.00
    Total discards                             0.00
    Total operations                           1.00

End of statistics.

mysql> SELECT * FROM ADDRESSES WHERE ADDRESS_ID=150;
Empty set (0.00 sec)

mysql> select database();
+------------+
| database() |
+------------+
| rptdb      |
+------------+
1 row in set (0.00 sec)
11-26 18:08
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