我尝试使用合流bigquerysinkconnector创建kafka到bigquery的数据管道。测试环境是一个cp all-in-one docker容器。我在上面添加了（它不作为默认值存在）。我在googlebigquery上做的所有定义（我希望…）。但它只是给出了模式注册表错误，我无法理解为什么会发生这种情况。我在bigquery数据集上创建了一个名为rest\u avro的表。主题架构：

{
  "fields": [
    {
      "name": "name",
      "type": "string"
    },
    {
      "name": "age",
      "type": [
        "null",
        "int"
      ]
    }
  ],
  "name": "User",
  "type": "record"
}

我在bigquery表上手动定义了这个模式。

连接器运行时没有错误。

我的连接器配置已成功加载

[2020-08-19 13:21:46,803] INFO SinkConnectorConfig values:
    config.action.reload = restart
    connector.class = com.wepay.kafka.connect.bigquery.BigQuerySinkConnector
    errors.deadletterqueue.context.headers.enable = false
    errors.deadletterqueue.topic.name =
    errors.deadletterqueue.topic.replication.factor = 3
    errors.log.enable = false
    errors.log.include.messages = false
    errors.retry.delay.max.ms = 60000
    errors.retry.timeout = 0
    errors.tolerance = none
    header.converter = null
    key.converter = null
    name = kcbq-connect1
    tasks.max = 1
    topics = [rest-avro]
    topics.regex =
    transforms = []
    value.converter = null
 (org.apache.kafka.connect.runtime.SinkConnectorConfig)
[2020-08-19 13:21:46,803] INFO EnrichedConnectorConfig values:
    config.action.reload = restart
    connector.class = com.wepay.kafka.connect.bigquery.BigQuerySinkConnector
    errors.deadletterqueue.context.headers.enable = false
    errors.deadletterqueue.topic.name =
    errors.deadletterqueue.topic.replication.factor = 3
    errors.log.enable = false
    errors.log.include.messages = false
    errors.retry.delay.max.ms = 60000
    errors.retry.timeout = 0
    errors.tolerance = none
    header.converter = null
    key.converter = null
    name = kcbq-connect1
    tasks.max = 1
    topics = [rest-avro]
    topics.regex =
    transforms = []
    value.converter = null
 (org.apache.kafka.connect.runtime.ConnectorConfig$EnrichedConnectorConfig)
[2020-08-19 13:21:46,804] INFO [Worker clientId=connect-1, groupId=compose-connect-group] Finished starting connectors and tasks (org.apache.kafka.connect.runtime.distributed.DistributedHerder)
[2020-08-19 13:21:55,940] INFO [Consumer clientId=connector-consumer-kcbq-connect1-0, groupId=connect-kcbq-connect1] Seeking to offset 8 for partition rest-avro-0 (org.apache.kafka.clients.consumer.KafkaConsumer)

但console会出现如下错误。你知道吗？

[2020-08-19 13:09:45,663] ERROR Task failed with org.apache.kafka.connect.errors.ConnectException error: Exception encountered while trying to fetch latest schema metadata from Schema Registry (com.wepay.kafka.connect.bigquery.write.batch.KCBQThreadPoolExecutor)
Exception in thread "pool-3-thread-79" org.apache.kafka.connect.errors.ConnectException: Exception encountered while trying to fetch latest schema metadata from Schema Registry
    at com.wepay.kafka.connect.bigquery.schemaregistry.schemaretriever.SchemaRegistrySchemaRetriever.retrieveSchema(SchemaRegistrySchemaRetriever.java:67)
    at com.wepay.kafka.connect.bigquery.SchemaManager.updateSchema(SchemaManager.java:58)
    at com.wepay.kafka.connect.bigquery.write.row.AdaptiveBigQueryWriter.attemptSchemaUpdate(AdaptiveBigQueryWriter.java:129)
    at com.wepay.kafka.connect.bigquery.write.row.AdaptiveBigQueryWriter.performWriteRequest(AdaptiveBigQueryWriter.java:96)
    at com.wepay.kafka.connect.bigquery.write.row.BigQueryWriter.writeRows(BigQueryWriter.java:117)
    at com.wepay.kafka.connect.bigquery.write.batch.TableWriter.run(TableWriter.java:77)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
Caused by: java.net.ConnectException: Connection refused (Connection refused)
    at java.net.PlainSocketImpl.socketConnect(Native Method)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    at java.net.Socket.connect(Socket.java:589)
    at java.net.Socket.connect(Socket.java:538)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:180)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1220)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1156)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1050)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:984)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1564)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1492)
    at java.net.HttpURLConnection.getResponseCode(HttpURLConnection.java:480)
    at io.confluent.kafka.schemaregistry.client.rest.RestService.sendHttpRequest(RestService.java:153)
    at io.confluent.kafka.schemaregistry.client.rest.RestService.httpRequest(RestService.java:188)
    at io.confluent.kafka.schemaregistry.client.rest.RestService.getLatestVersion(RestService.java:359)
    at io.confluent.kafka.schemaregistry.client.rest.RestService.getLatestVersion(RestService.java:351)
    at io.confluent.kafka.schemaregistry.client.CachedSchemaRegistryClient.getLatestSchemaMetadata(CachedSchemaRegistryClient.java:136)
    at com.wepay.kafka.connect.bigquery.schemaregistry.schemaretriever.SchemaRegistrySchemaRetriever.retrieveSchema(SchemaRegistrySchemaRetriever.java:63)
    ... 8 more