我使用 Confluent Platform 3.3 作为 Kafka 连接器,同时使用以下命令启动连接器,
./bin/connect-standalone ./etc/schema-registry/connect-avro-standalone.properties ./etc/kafka-connect-jdbc/connect-jdbc-source.properties
收到以下错误
ERROR Server died unexpectedly: (io.confluent.kafka.schemaregistry.rest.SchemaRegistryMain:52)
org.apache.kafka.common.errors.TimeoutException: Timeout expired while fetching topic metadata
[2017-10-30 13:49:56,178] ERROR Failed to send HTTP request to endpoint: http://localhost:8081/subjects/jdbc-source-accounts-value/versions
(io.confluent.kafka.schemaregistry.client.rest.RestService:156)
Zookeeper 在 kafka 客户端 2181 端口中运行,我尝试通过以下命令启动模式
./bin/schema-registry-start ./etc/schema-registry/schema-registry.properties &
但它没有显示任何错误消息,但端口 8081 没有启动。请帮我解决这个问题。