Docker，Debezium 没有将数据从 mssql 流式传输到 elasticsearch

Question

我按照这个例子将数据从 mysql 流式传输到 elasticsearch https://github.com/debezium/debezium-examples/tree/master/unwrap-smt#elasticsearch-sink 该示例本身在我的本地计算机上运行良好。

但在我的例子中，我想将数据从 mssql（在另一台服务器上，而不是 docker）流式传输到 elasticsearch。

所以在“docker-compose-es.yaml”文件中我删除了“mysql”部分并删除了mysql链接。并为 elastic 和 mssql 创建了我自己的 connectors/sink：

{
    "name": "Test-connector", 
    "config": {
        "connector.class": "io.debezium.connector.sqlserver.SqlServerConnector", 
        "database.hostname": "192.168.1.234", 
        "database.port": "1433", 
        "database.user": "user", 
        "database.password": "pass", 
        "database.dbname": "Test", 
        "database.server.name": "MyServer",
        "table.include.list": "dbo.TEST_A",
        "database.history.kafka.bootstrap.servers": "kafka:9092", 
        "database.history.kafka.topic": "dbhistory.testA"
    }
}

{
    "name": "elastic-sink-test",
    "config": {
        "connector.class": "io.confluent.connect.elasticsearch.ElasticsearchSinkConnector",
        "tasks.max": "1",
        "topics": "TEST_A",
        "connection.url": "http://localhost:9200/",
        "transforms": "unwrap,key",
        "transforms.unwrap.type": "io.debezium.transforms.UnwrapFromEnvelope",    
        "transforms.unwrap.drop.tombstones": "false",    
        "transforms.key.type": "org.apache.kafka.connect.transforms.ExtractField$Key",
        "transforms.key.field": "SQ",                                                 
        "key.ignore": "false",                                                        
        "type.name": "TEST_A",
        "behavior.on.null.values": "delete"                                                     
    }
}

添加这些时，kafka connect I/O 正在努力工作并且有超过 40GB 的输入，请参见下图：

在 kafka 日志中，它看起来像是经历了所有 tables。这是 table 日志之一：

2021-06-17 10:20:10,414 - INFO [data-plane-kafka-request-handler-5:Logging@66] - [Partition MyServer.dbo.TemplateGroup-0 broker=1] Log loaded for partition MyServer.dbo.TemplateGroup-0 with initial high watermark 0
2021-06-17 10:20:10,509 - INFO [data-plane-kafka-request-handler-3:Logging@66] - Creating topic MyServer.dbo.TemplateMeter with configuration {} and initial partition assignment Map(0 -> ArrayBuffer(1))
2021-06-17 10:20:10,516 - INFO [data-plane-kafka-request-handler-3:Logging@66] - [KafkaApi-1] Auto creation of topic MyServer.dbo.TemplateMeter with 1 partitions and replication factor 1 is successful
2021-06-17 10:20:10,526 - INFO [data-plane-kafka-request-handler-7:Logging@66] - [ReplicaFetcherManager on broker 1] Removed fetcher for partitions Set(MyServer.dbo.TemplateMeter-0)
2021-06-17 10:20:10,528 - INFO [data-plane-kafka-request-handler-7:Logging@66] - [Log partition=MyServer.dbo.TemplateMeter-0, dir=/kafka/data/1] Loading producer state till offset 0 with message format version 2

数据库只有2GB。我不知道为什么它有这么高的输入。

test_a 没有在 elasticsearch 中创建索引运行这个命令： curl http://localhost:9200/_aliases?pretty=true

有谁知道我如何从这里排除故障或指出正确的方向？

提前致谢！

Answer 1

how I troubleshoot from here

docker compose logs?

修改Kafka Connect的log4j.properties and/or Elasitcsearch进程获取更多日志？

使用普通的 Kafka 消费者查看数据是否真的读入了 TEST_A 主题？

in the "docker-compose-es.yaml" ....

如果 Debezium 在容器中运行，则 Elasticsearch 在 localhost:9200

时不可用

将该值更改为 http://elastic:9200、like shown in the es-sink.json

Docker，Debezium 没有将数据从 mssql 流式传输到 elasticsearch

Docker, Debezium not streaming data from mssql to elasticsearch

sql-server

elasticsearch

apache-kafka

docker

debezium