flinkCDC mysql - 技术栈

1.首先必须在要同步到源端和目标端创建好表

2.源端flinksql语句如下：

sql 复制代码

DROP TABLE IF EXISTS FLINK_SOURCE_hrpt_dtl;
create table FLINK_SOURCE_hrpt_dtl(
`template_dtl_id`bigint NOT NULL ,
  `template_id`bigint NOT NULL COMMENT '报表模板ID,hrpt_template.template_id',
  `template_url` varchar(480)   COMMENT '模板路径',
  `template_content` string  COMMENT '模板内容',
  `lang` varchar(30)  NOT NULL COMMENT '模板语言',
  `enabled_flag` tinyint NOT NULL  COMMENT '启用标识',
  `tenant_id`bigint NOT NULL  COMMENT '租户ID,hpfm_tenant.tenant_id',
  `object_version_number`bigint NOT NULL  COMMENT '行版本号，用来处理锁',
  `creation_date` timestamp NOT NULL,
  `created_by`bigint NOT NULL ,
  `last_updated_by`bigint NOT NULL ,
  `last_update_date` timestamp NOT NULL,
	PRIMARY KEY (`template_dtl_id`) NOT ENFORCED
)with (
'connector' = 'mysql-cdc',
'hostname' = '1.6.2.13',
'port' = '3306',
'username' = 'test',
'password' = 'test@123',
'database-name' = 'report',
'table-name' = 'hrpt_dtl',
'scan.incremental.snapshot.enabled' = 'false',
'debezium.database.tablename.case.insensitive' = 'false',
'debezium.log.mining.strategy' = 'online_catalog',
'server-time-zone' = 'Asia/Shanghai',
'debezium.log.mining.continuous.mine' = 'true'
);

3.目标端flinksql模板

sql 复制代码

DROP TABLE IF EXISTS FLINK_TARGET_hrpt_dtl;
create table FLINK_TARGET_hrpt_dtl(
`template_dtl_id`bigint NOT NULL ,
  `template_id`bigint NOT NULL COMMENT '报表模板ID,hrpt_template.template_id',
  `template_url` varchar(480)   COMMENT '模板路径',
  `template_content` string  COMMENT '模板内容',
  `lang` varchar(30)  NOT NULL COMMENT '模板语言',
  `enabled_flag` tinyint NOT NULL  COMMENT '启用标识',
  `tenant_id`bigint NOT NULL  COMMENT '租户ID,hpfm_tenant.tenant_id',
  `object_version_number`bigint NOT NULL  COMMENT '行版本号，用来处理锁',
  `creation_date` timestamp NOT NULL,
  `created_by`bigint NOT NULL ,
  `last_updated_by`bigint NOT NULL ,
  `last_update_date` timestamp NOT NULL,
	PRIMARY KEY (`template_dtl_id`) NOT ENFORCED
)with (
'connector' = 'jdbc',
'url' = 'jdbc:mysql://10.6.28.10:3306/cdc?useSSL=false&allowPublicKeyRetrieval=true&serverTimezone=UTC&serverTimezone=Asia/Shanghai',
'username' = 'test',
'password' = 'test@123',
'table-name' = 'hrpt_dtl',
'driver' = 'com.mysql.jdbc.Driver',
'scan.fetch-size' = '200'
);

4.把源端数据插入到目标端

sql 复制代码

insert into FLINK_TARGET_hrpt_dtl select * from FLINK_TARGET_hrpt_dtl ;

以上就是flink_CDC的全部过程。