debezium open data lakehouse

gistfile1.txt

Using https://github.com/StarRocks/demo/tree/master/documentation-samples/datalakehouse.  For simplicity, I am using the postgreSQL, zookeeper, kafka, kafka connect images from debezium since they have already made all the recommended modifications to support debezium.

Once the docker-compose envirnoment is up

## Set password in StarRocks
Because kafka doesn't like blank passwords.

SET PASSWORD = PASSWORD('123456');

## Create databases

### StarRocks
create database demo;
use demo;
CREATE TABLE `customer` (
  `col_001` bigint(20) NOT NULL COMMENT "",
  `col_002` varchar(65533) NULL COMMENT "",
  `col_003` bigint(20) NULL COMMENT "",
  `col_004` bigint(20) NULL COMMENT "",
  `col_005` bigint(20) NULL COMMENT "",
  `col_006` bigint(20) NULL COMMENT "",
  `col_007` bigint(20) NULL COMMENT "",
  `col_008` varchar(65533) NULL COMMENT "",
  `col_009` varchar(65533) NULL COMMENT "",
  `col_010` varchar(65533) NULL COMMENT "",
  `col_011` varchar(65533) NULL COMMENT "",
  `col_012` bigint(20) NULL COMMENT "",
  `col_013` bigint(20) NULL COMMENT "",
  `col_014` bigint(20) NULL COMMENT "",
  `col_015` varchar(65533) NULL COMMENT "",
  `col_016` varchar(65533) NULL COMMENT "",
  `col_017` varchar(65533) NULL COMMENT "",
  `col_018` bigint(20) NULL COMMENT "",
  `_sling_loaded_at` bigint(20) NULL COMMENT ""
) ENGINE=OLAP
PRIMARY KEY(`col_001`)
DISTRIBUTED BY HASH(`col_001`);

## Kafka Setup

### Register Kafka Connect Connectors

curl -i -X POST -H "Accept:application/json" -H "Content-Type:application/json" localhost:8083/connectors/ -d '{ "name": "postgres-tpcds-connector", "config": { "connector.class": "io.debezium.connector.postgresql.PostgresConnector", "database.hostname": "postgresql", "database.port": "5432", "database.user": "postgres", "database.password": "postgres", "database.dbname": "postgres", "topic.prefix": "postgres", "topic.include.list": "public.customer" } }'

curl -i localhost:8083/connectors/ -H "Content-Type: application/json" -X POST -d '{ "name":"starrocks-kafka-connector", "config":{ "connector.class":"com.starrocks.connector.kafka.StarRocksSinkConnector", "topics":"postgres.public.customer", "key.converter":"org.apache.kafka.connect.json.JsonConverter", "value.converter":"org.apache.kafka.connect.json.JsonConverter", "key.converter.schemas.enable":"true", "value.converter.schemas.enable":"false", "starrocks.http.url":"starrocks-fe:8030", "starrocks.topic2table.map":"postgres.public.customer:customer", "starrocks.username":"root", "starrocks.password":"123456", "starrocks.database.name":"demo", "sink.properties.strip_outer_array":"true" } }'

curl -i localhost:8083/connectors/ -H "Content-Type: application/json" -X POST -d '{ "name": "starrocks-kafka-connector", "config": { "connector.class": "com.starrocks.connector.kafka.StarRocksSinkConnector", "topics": "postgres.public.customer", "key.converter": "org.apache.kafka.connect.json.JsonConverter", "value.converter": "org.apache.kafka.connect.json.JsonConverter", "key.converter.schemas.enable": "true", "value.converter.schemas.enable": "false", "starrocks.http.url": "starrocks-fe:8030", "starrocks.topic2table.map": "postgres.public.customer:customer", "starrocks.username": "root", "starrocks.password": "123456", "starrocks.database.name": "demo", "transforms": "addfield,unwrap", "transforms.addfield.type": "com.starrocks.connector.kafka.transforms.AddOpFieldForDebeziumRecord", "transforms.unwrap.type": "io.debezium.transforms.ExtractNewRecordState", "transforms.unwrap.drop.tombstones": "true", "transforms.unwrap.delete.handling.mode": "rewrite", "sink.properties.strip_outer_array": "true" } }'

curl -i -X POST -H "Accept:application/json" -H "Content-Type:application/json" localhost:8083/connectors/ -d '{ "name": "jdbc-connector", "config": { "connector.class": "io.debezium.connector.jdbc.JdbcSinkConnector", "tasks.max": "1", "connection.url": "jdbc:mysql://starrocks-fe:9030/demo", "connection.username": "root", "connection.password": "123456", "insert.mode": "insert", "delete.enabled": "true", "schema.evolution": "none", "database.time_zone": "UTC", "table.name.format": "customer", "dialect.starrocks.catalog_name": "demo", "topics": "postgres.public.customer" } }'

If you want to check status, you can run

curl -H "Accept:application/json" localhost:8083/connectors/
curl -i -X GET -H "Accept:application/json" localhost:8083/connectors/tpcds-customer-connector
curl -i -X DELETE -H "Accept:application/json" localhost:8083/connectors/postgres-tpcds-connector
curl -i -X DELETE -H "Accept:application/json" localhost:8083/connectors/starrocks-kafka-connector
curl -i -X DELETE -H "Accept:application/json" localhost:8083/connectors/jdbc-connector

### Monitor messages in flight [optional]
bin/kafka-topics.sh --bootstrap-server kafka:29092 --list
bin/kafka-console-consumer.sh --bootstrap-server kafka:29092 --topic postgres.public.customer --from-beginning

## Debezium Setup
### Debezium tiggering

By default, debezium only sends events on insert

SELECT CASE relreplident
          WHEN 'd' THEN 'default'
          WHEN 'n' THEN 'nothing'
          WHEN 'f' THEN 'full'
          WHEN 'i' THEN 'index'
       END AS replica_identity
FROM pg_class


Change default to FULL
ALTER TABLE public.customer REPLICA IDENTITY FULL;

## Load data into postgresql

sling run --src-stream 'file://customer.csv' --src-options '{ header: false }' --tgt-conn POSTGRESLOCAL source_options: --tgt-object 'public.customer' --mode full-refresh
sling run --src-stream 'file://customer2.csv' --src-options '{ header: false }' --tgt-conn POSTGRESLOCAL source_options: --tgt-object 'public.customer' --mode full-refresh
sling run --src-conn POSTGRESLOCAL --src-stream 'public.customer' --tgt-conn STARROCKSLOCAL --tgt-object 'tpcds.customer' --mode full-refresh
sling run --src-conn POSTGRESLOCAL --src-stream 'public.customer' --tgt-conn STARROCKSLOCAL --tgt-object 'tpcds.customer' --primary-key col_001 --mode full-refresh

```
atwong@Albert-CelerData target % cat ~/.sling/env.yaml
# Environment Credentials for Sling CLI

# See https://docs.slingdata.io/sling-cli/environment

connections:
  DUCKDB:
    type: duckdb
    instance: /Users/atwong/duckdb.db
#    interactive: true

  MYSQL:
    type: mysql
    url: mysql://admin:admin@hw2aq4jfy.cloud-app.celerdata.com:9030/albert

  MYSQLLOCAL:
    type: mysql
    url: mysql://root:password@localhost:3306/employees

  POSTGRESLOCAL:
    type: postgres
    url: postgresql://postgres:postgres@localhost:5432/postgres?sslmode=disable

  STARROCKSLOCAL:
    type: starrocks
    fe_url: http://localhost:8040
    url: starrocks://root:@localhost:9030/

variables: {}
```

```
atwong@Albert-CelerData tpcds-csv % cat customer2.csv
1|AAAAAAAABAAAAAAA|980124|7135|32946|2452238|2452208|Mr.|Javier|Lewis|Y|9|12|1936|CHILE|""|Javier.Lewis@VFAxlnZEvOx.org|2452508
```