运行 Kafka 与 Avro 转换器连接：ConfigException："Missing Schema registry url"

Question

嗨，我运行 Kafka Connect docker 图片

docker run -d \
  --name=kafka-connect \
  --net=host \
  -e CONNECT_BOOTSTRAP_SERVERS=localhost:39092 \
  -e CONNECT_REST_PORT=28082 \
  -e CONNECT_GROUP_ID="quickstart" \
  -e CONNECT_CONFIG_STORAGE_TOPIC="quickstart-config" \
  -e CONNECT_OFFSET_STORAGE_TOPIC="quickstart-offsets" \
  -e CONNECT_STATUS_STORAGE_TOPIC="quickstart-status" \
  -e CONNECT_KEY_CONVERTER="io.confluent.connect.avro.AvroConverter" \
  -e CONNECT_KEY_CONVERTER_SCHEMA_REGISTRY_URL="http://localhost:8081" \
  -e CONNECT_VALUE_CONVERTER="io.confluent.connect.avro.AvroConverter" \
  -e CONNECT_VALUE_CONVERTER_SCHEMA_REGISTRY_URL="http://localhost:8081" \
  -e CONNECT_INTERNAL_KEY_CONVERTER="io.confluent.connect.avro.AvroConverter" \
  -e CONNECT_INTERNAL_VALUE_CONVERTER="io.confluent.connect.avro.AvroConverter" \
  -e CONNECT_REST_ADVERTISED_HOST_NAME="localhost" \
  -e CONNECT_ZOOKEEPER_CONNECT="localhost:2181" \
  tim/kafka-connect

并获得

Exception in thread "main" org.apache.kafka.common.config.ConfigException: Missing Schema registry url!
    at io.confluent.connect.avro.AvroConverter.configure(AvroConverter.java:64)
    at org.apache.kafka.connect.runtime.Worker.<init>(Worker.java:93)
    at org.apache.kafka.connect.cli.ConnectDistributed.main(ConnectDistributed.java:74)

不知道在哪里添加 "schema.registry.url" conf !!

Answer 1

问题出在 _INTERNAL_KEY_ 和 _INTERNAL_VALUE_
我没有像为 _KEY_CONVERTER 和 _KEY_VALUE 添加 SCHEMA_REGISTRY_URL 那样为这两个添加任何方式我为内部键和值 [=] 切换回 org.apache.kafka.connect.json.JsonConverter 15=]

Answer 2

如果您使用的是 .properties 文件，您将需要：

:internal.key.converter.schema.registry.url http://urlgoes.here
:internal.value.converter.schema.registry.url http://urlgoes.here

如果您要传递命令行环境变量，您将需要：

INTERNAL_KEY_CONVERTER_SCHEMA_REGISTRY_URL=http://urlgoes.here
INTERNAL_VALUE_CONVERTER_SCHEMA_REGISTRY_URL=http://urlgoes.here

运行 Kafka 与 Avro 转换器连接：ConfigException："Missing Schema registry url"

Running Kafka Connect with Avro Converter : ConfigException: "Missing Schema registry url"

apache-kafka

apache-kafka-connect

confluent-platform