如何使用在docker上运行的debezium和合流接收器连接器将所有更改从源数据库复制到目标数据库

Question

下面的代码是我的用于Kafka连接JDBC和MySQL驱动程序的Dockerfile

FROM debezium/connect:1.3
ENV KAFKA_CONNECT_JDBC_DIR=$KAFKA_CONNECT_PLUGINS_DIR/kafka-connect-jdbc
ENV MYSQL_DRIVER_VERSION 8.0.20
ARG KAFKA_JDBC_VERSION=5.5.0
RUN curl -k -SL "https://dev.mysql.com/get/Downloads/Connector-J/mysql-connector-java-${MYSQL_DRIVER_VERSION}.tar.gz" 
| tar -xzf - -C /kafka/libs --strip-components=1 mysql-connector-java-8.0.20/mysql-connector-java-${MYSQL_DRIVER_VERSION}.jar
RUN mkdir $KAFKA_CONNECT_JDBC_DIR && cd $KAFKA_CONNECT_JDBC_DIR &&
curl -sO https://packages.confluent.io/maven/io/confluent/kafka-connect-jdbc/$KAFKA_JDBC_VERSION/kafka-connect-jdbc-$KAFKA_JDBC_VERSION.jar

docker build . --tag kafka kafka-connect-sink 

下面是我的源数据库json

curl -i -X POST -H "Accept:application/json" -H "Content-Type:application/json" 192.168.99.102:8083/connectors/ -d '{
"name": "inventory-connector",
"config": {
"connector.class": "io.debezium.connector.mysql.MySqlConnector",
"tasks.max": "1",
"database.hostname": "mysql",
"database.port": "3306",
"database.user": "debezium",
"database.password": "dbz",
"database.server.id": "184054",
"database.server.name": "dbserver1",
"database.include.list": "inventory",
"database.history.kafka.bootstrap.servers": "kafka:9092",
"database.history.kafka.topic": "dbhistory.inventory"
}
}'

下面是我的目的地数据库接收器json

curl -i -X POST -H "Accept:application/json" -H "Content-Type:application/json" 192.168.99.102:8083/connectors/ -d '{
"name": "inventory-connector-sink",
"config": {
"connector.class": "io.confluent.connect.jdbc.JdbcSinkConnector",
"tasks.max": "1",
"connection.url": "jdbc:mysql://192.168.0.104:3306/pk?useSSL=false",
"connection.user": "pavan",
"connection.password": "root",
"topics": "dbserver1.inventory.customers",
"table.name.format": "pk.customers",
"auto.create": "true",
"auto.evolve": "true",
"delete.enabled": "true",
"insert.mode": "upsert",
"pk.fields": "id",
"pk.mode": "record_key",
"transforms": "unwrap",
"transforms.unwrap.type": "io.debezium.transforms.ExtractNewRecordState",
"transforms.unwrap.drop.tombstones": "false",
"transforms.unwrap.delete.handling.mode": "rewrite"
}
}'

curl -i -X POST -H "Accept:application/json" -H "Content-Type:application/json" 192.168.99.102:8083/connectors/ -d '{
"name": "inventory-connector-sink-addresses",
"config": {
"connector.class": "io.confluent.connect.jdbc.JdbcSinkConnector",
"tasks.max": "1",
"connection.url": "jdbc:mysql://192.168.0.104:3306/pk?useSSL=false",
"connection.user": "pavan",
"connection.password": "root",
"topics": "dbserver1.inventory.addresses",
"table.name.format": "pk.addresses",
"auto.create": "true",
"auto.evolve": "true",
"delete.enabled": "true",
"insert.mode": "upsert",
"pk.fields": "id",
"pk.mode": "record_key",
"transforms": "unwrap",
"transforms.unwrap.type": "io.debezium.transforms.ExtractNewRecordState",
"transforms.unwrap.drop.tombstones": "false",
"transforms.unwrap.delete.handling.mode": "rewrite"
}
}'

有了这个配置，我需要订阅每个主题，但问题是我有100多个表要在目标数据库中进行复制。无论如何，我可以在单个json配置中进行复制，这样我就可以订阅所有主题。

Answer 1

您可以使用topics(或topics.regex(属性来定义要使用的主题列表，以及JBDC Sink连接器或RegexRouterSMT的table.name.format属性(或将它们组合(来覆盖目标表名称：

curl -i -X POST -H "Accept:application/json" -H "Content-Type:application/json" 192.168.99.102:8083/connectors/ -d '{
"name": "inventory-connector-sink-addresses",
"config": {
"connector.class": "io.confluent.connect.jdbc.JdbcSinkConnector",
"tasks.max": "1",
"connection.url": "jdbc:mysql://192.168.0.104:3306/pk?useSSL=false",
"connection.user": "pavan",
"connection.password": "root",
"topics": "dbserver1.inventory.addresses,dbserver1.inventory.customers",
"auto.create": "true",
"auto.evolve": "true",
"delete.enabled": "true",
"insert.mode": "upsert",
"pk.fields": "",
"pk.mode": "record_key",
"transforms": "route,unwrap",
"transforms.unwrap.type": "io.debezium.transforms.ExtractNewRecordState",
"transforms.unwrap.drop.tombstones": "false",
"transforms.unwrap.delete.handling.mode": "rewrite",
"transforms.route.type": "org.apache.kafka.connect.transforms.RegexRouter",
"transforms.route.regex": "([^.]+)\.([^.]+)\.([^.]+)",
"transforms.route.replacement": "pk.$3"
}
}'