Apache kafka 找不到实现连接器且名称与io.confluent.connect.mqtt.MqttSourceConnector匹配的任何类

我正在尝试从另一台机器中的代理Mosquitto接收数据

我安装了Confluent平台和kafka连接器mqtt源，但我没有收到数据。 配置：

{"error_code":500,"message":"Failed to find any class that implements Connector and which name matches io.confluent.connect.mqtt.MqttSourceConnector, available connectors are: PluginDesc{klass=class io.confluent.connect.activemq.ActiveMQSourceConnector, name='io.confluent.connect.activemq.ActiveMQSourceConnector', version='5.0.0', encodedVersion=5.0.0, type=source, typeName='source', location='file:/opt/confluent-5.0.0/share/java/kafka-connect-activemq/'}, PluginDesc{klass=class io.confluent.connect.elasticsearch.ElasticsearchSinkConnector, name='io.confluent.connect.elasticsearch.ElasticsearchSinkConnector', version='5.0.0', encodedVersion=5.0.0, type=sink, typeName='sink', location='file:/opt/confluent-5.0.0/share/java/kafka-connect-elasticsearch/'}, PluginDesc{klass=class io.confluent.connect.hdfs.HdfsSinkConnector, name='io.confluent.connect.hdfs.HdfsSinkConnector', version='5.0.0', encodedVersion=5.0.0, type=sink, typeName='sink', location='file:/opt/confluent-5.0.0/share/java/kafka-connect-hdfs/'}, PluginDesc{klass=class io.confluent.connect.hdfs.tools.SchemaSourceConnector, name='io.confluent.connect.hdfs.tools.SchemaSourceConnector', version='2.0.0-cp1', encodedVersion=2.0.0-cp1, type=source, typeName='source', location='file:/opt/confluent-5.0.0/share/java/kafka-connect-hdfs/'}, PluginDesc{klass=class io.confluent.connect.ibm.mq.IbmMQSourceConnector, name='io.confluent.connect.ibm.mq.IbmMQSourceConnector', version='5.0.0', encodedVersion=5.0.0, type=source, typeName='source', location='file:/opt/confluent-5.0.0/share/java/kafka-connect-ibmmq/'}, PluginDesc{klass=class io.confluent.connect.jdbc.JdbcSinkConnector, name='io.confluent.connect.jdbc.JdbcSinkConnector', version='5.0.0', encodedVersion=5.0.0, type=sink, typeName='sink', location='file:/opt/confluent-5.0.0/share/java/kafka-connect-jdbc/'}, PluginDesc{klass=class io.confluent.connect.jdbc.JdbcSourceConnector, name='io.confluent.connect.jdbc.JdbcSourceConnector', version='5.0.0', encodedVersion=5.0.0, type=source, typeName='source', location='file:/opt/confluent-5.0.0/share/java/kafka-connect-jdbc/'}, PluginDesc{klass=class io.confluent.connect.jms.JmsSourceConnector, name='io.confluent.connect.jms.JmsSourceConnector', version='5.0.0', encodedVersion=5.0.0, type=source, typeName='source', location='file:/opt/confluent-5.0.0/share/java/kafka-connect-ibmmq/'}, PluginDesc{klass=class io.confluent.connect.replicator.ReplicatorSourceConnector, name='io.confluent.connect.replicator.ReplicatorSourceConnector', version='5.0.0', encodedVersion=5.0.0, type=source, typeName='source', location='file:/opt/confluent-5.0.0/share/java/kafka-connect-replicator/'}, PluginDesc{klass=class io.confluent.connect.s3.S3SinkConnector, name='io.confluent.connect.s3.S3SinkConnector', version='5.0.0', encodedVersion=5.0.0, type=sink, typeName='sink', location='file:/opt/confluent-5.0.0/share/java/kafka-connect-s3/'}, PluginDesc{klass=class io.confluent.connect.storage.tools.SchemaSourceConnector, name='io.confluent.connect.storage.tools.SchemaSourceConnector', version='2.0.0-cp1', encodedVersion=2.0.0-cp1, type=source, typeName='source', location='file:/opt/confluent-5.0.0/share/java/kafka-connect-storage-common/'}, PluginDesc{klass=class org.apache.kafka.connect.file.FileStreamSinkConnector, name='org.apache.kafka.connect.file.FileStreamSinkConnector', version='2.0.0-cp1', encodedVersion=2.0.0-cp1, type=sink, typeName='sink', location='file:/opt/confluent-5.0.0/share/java/kafka/'}, PluginDesc{klass=class org.apache.kafka.connect.file.FileStreamSourceConnector, name='org.apache.kafka.connect.file.FileStreamSourceConnector', version='2.0.0-cp1', encodedVersion=2.0.0-cp1, type=source, typeName='source', location='file:/opt/confluent-5.0.0/share/java/kafka/'}, PluginDesc{klass=class org.apache.kafka.connect.tools.MockConnector, name='org.apache.kafka.connect.tools.MockConnector', version='2.0.0-cp1', encodedVersion=2.0.0-cp1, type=connector, typeName='connector', location='file:/opt/confluent-5.0.0/share/java/confluent-kafka-mqtt/'}, PluginDesc{klass=class org.apache.kafka.connect.tools.MockSinkConnector, name='org.apache.kafka.connect.tools.MockSinkConnector', version='2.0.0-cp1', encodedVersion=2.0.0-cp1, type=sink, typeName='sink', location='file:/opt/confluent-5.0.0/share/java/confluent-kafka-mqtt/'}, PluginDesc{klass=class org.apache.kafka.connect.tools.MockSourceConnector, name='org.apache.kafka.connect.tools.MockSourceConnector', version='2.0.0-cp1', encodedVersion=2.0.0-cp1, type=source, typeName='source', location='file:/opt/confluent-5.0.0/share/java/confluent-kafka-mqtt/'}, PluginDesc{klass=class org.apache.kafka.connect.tools.SchemaSourceConnector, name='org.apache.kafka.connect.tools.SchemaSourceConnector', version='2.0.0-cp1', encodedVersion=2.0.0-cp1, type=source, typeName='source', location='file:/opt/confluent-5.0.0/share/java/confluent-kafka-mqtt/'}, PluginDesc{klass=class org.apache.kafka.connect.tools.VerifiableSinkConnector, name='org.apache.kafka.connect.tools.VerifiableSinkConnector', version='2.0.0-cp1', encodedVersion=2.0.0-cp1, type=source, typeName='source', location='file:/opt/confluent-5.0.0/share/java/confluent-kafka-mqtt/'}, PluginDesc{klass=class org.apache.kafka.connect.tools.VerifiableSourceConnector, name='org.apache.kafka.connect.tools.VerifiableSourceConnector', version='2.0.0-cp1', encodedVersion=2.0.0-cp1, type=source, typeName='source', location='file:/opt/confluent-5.0.0/share/java/confluent-kafka-mqtt/'}" }

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您似乎安装了错误的连接器（未使用Confluent Hub命令？）

在错误中搜索合流kafka mqtt，您将看到连接器类不存在

---

您也可以

GET/connector plugins

在发布之前验证其加载情况

您是对的，我在运行“confluent status connector”时没有看到任何内容。我通过confluent Hub安装了连接器，并且安装正确。安装连接器后的下一步是什么？是否有允许Kafka查看的命令？您需要重新启动Kafka连接进程。如果

/connector plugins

没有显示，则说明安装不正确。嗨，cricket_007，谢谢你的回答，重新启动Kafka Connect，但我仍然看不到来自蚊子代理的消息。我不知道我跳了哪一步。将MQTT连接到卡夫卡的不同步骤是什么？谢谢

{"error_code":500,"message":"Failed to find any class that implements Connector and which name matches io.confluent.connect.mqtt.MqttSourceConnector, available connectors are: PluginDesc{klass=class io.confluent.connect.activemq.ActiveMQSourceConnector, name='io.confluent.connect.activemq.ActiveMQSourceConnector', version='5.0.0', encodedVersion=5.0.0, type=source, typeName='source', location='file:/opt/confluent-5.0.0/share/java/kafka-connect-activemq/'}, PluginDesc{klass=class io.confluent.connect.elasticsearch.ElasticsearchSinkConnector, name='io.confluent.connect.elasticsearch.ElasticsearchSinkConnector', version='5.0.0', encodedVersion=5.0.0, type=sink, typeName='sink', location='file:/opt/confluent-5.0.0/share/java/kafka-connect-elasticsearch/'}, PluginDesc{klass=class io.confluent.connect.hdfs.HdfsSinkConnector, name='io.confluent.connect.hdfs.HdfsSinkConnector', version='5.0.0', encodedVersion=5.0.0, type=sink, typeName='sink', location='file:/opt/confluent-5.0.0/share/java/kafka-connect-hdfs/'}, PluginDesc{klass=class io.confluent.connect.hdfs.tools.SchemaSourceConnector, name='io.confluent.connect.hdfs.tools.SchemaSourceConnector', version='2.0.0-cp1', encodedVersion=2.0.0-cp1, type=source, typeName='source', location='file:/opt/confluent-5.0.0/share/java/kafka-connect-hdfs/'}, PluginDesc{klass=class io.confluent.connect.ibm.mq.IbmMQSourceConnector, name='io.confluent.connect.ibm.mq.IbmMQSourceConnector', version='5.0.0', encodedVersion=5.0.0, type=source, typeName='source', location='file:/opt/confluent-5.0.0/share/java/kafka-connect-ibmmq/'}, PluginDesc{klass=class io.confluent.connect.jdbc.JdbcSinkConnector, name='io.confluent.connect.jdbc.JdbcSinkConnector', version='5.0.0', encodedVersion=5.0.0, type=sink, typeName='sink', location='file:/opt/confluent-5.0.0/share/java/kafka-connect-jdbc/'}, PluginDesc{klass=class io.confluent.connect.jdbc.JdbcSourceConnector, name='io.confluent.connect.jdbc.JdbcSourceConnector', version='5.0.0', encodedVersion=5.0.0, type=source, typeName='source', location='file:/opt/confluent-5.0.0/share/java/kafka-connect-jdbc/'}, PluginDesc{klass=class io.confluent.connect.jms.JmsSourceConnector, name='io.confluent.connect.jms.JmsSourceConnector', version='5.0.0', encodedVersion=5.0.0, type=source, typeName='source', location='file:/opt/confluent-5.0.0/share/java/kafka-connect-ibmmq/'}, PluginDesc{klass=class io.confluent.connect.replicator.ReplicatorSourceConnector, name='io.confluent.connect.replicator.ReplicatorSourceConnector', version='5.0.0', encodedVersion=5.0.0, type=source, typeName='source', location='file:/opt/confluent-5.0.0/share/java/kafka-connect-replicator/'}, PluginDesc{klass=class io.confluent.connect.s3.S3SinkConnector, name='io.confluent.connect.s3.S3SinkConnector', version='5.0.0', encodedVersion=5.0.0, type=sink, typeName='sink', location='file:/opt/confluent-5.0.0/share/java/kafka-connect-s3/'}, PluginDesc{klass=class io.confluent.connect.storage.tools.SchemaSourceConnector, name='io.confluent.connect.storage.tools.SchemaSourceConnector', version='2.0.0-cp1', encodedVersion=2.0.0-cp1, type=source, typeName='source', location='file:/opt/confluent-5.0.0/share/java/kafka-connect-storage-common/'}, PluginDesc{klass=class org.apache.kafka.connect.file.FileStreamSinkConnector, name='org.apache.kafka.connect.file.FileStreamSinkConnector', version='2.0.0-cp1', encodedVersion=2.0.0-cp1, type=sink, typeName='sink', location='file:/opt/confluent-5.0.0/share/java/kafka/'}, PluginDesc{klass=class org.apache.kafka.connect.file.FileStreamSourceConnector, name='org.apache.kafka.connect.file.FileStreamSourceConnector', version='2.0.0-cp1', encodedVersion=2.0.0-cp1, type=source, typeName='source', location='file:/opt/confluent-5.0.0/share/java/kafka/'}, PluginDesc{klass=class org.apache.kafka.connect.tools.MockConnector, name='org.apache.kafka.connect.tools.MockConnector', version='2.0.0-cp1', encodedVersion=2.0.0-cp1, type=connector, typeName='connector', location='file:/opt/confluent-5.0.0/share/java/confluent-kafka-mqtt/'}, PluginDesc{klass=class org.apache.kafka.connect.tools.MockSinkConnector, name='org.apache.kafka.connect.tools.MockSinkConnector', version='2.0.0-cp1', encodedVersion=2.0.0-cp1, type=sink, typeName='sink', location='file:/opt/confluent-5.0.0/share/java/confluent-kafka-mqtt/'}, PluginDesc{klass=class org.apache.kafka.connect.tools.MockSourceConnector, name='org.apache.kafka.connect.tools.MockSourceConnector', version='2.0.0-cp1', encodedVersion=2.0.0-cp1, type=source, typeName='source', location='file:/opt/confluent-5.0.0/share/java/confluent-kafka-mqtt/'}, PluginDesc{klass=class org.apache.kafka.connect.tools.SchemaSourceConnector, name='org.apache.kafka.connect.tools.SchemaSourceConnector', version='2.0.0-cp1', encodedVersion=2.0.0-cp1, type=source, typeName='source', location='file:/opt/confluent-5.0.0/share/java/confluent-kafka-mqtt/'}, PluginDesc{klass=class org.apache.kafka.connect.tools.VerifiableSinkConnector, name='org.apache.kafka.connect.tools.VerifiableSinkConnector', version='2.0.0-cp1', encodedVersion=2.0.0-cp1, type=source, typeName='source', location='file:/opt/confluent-5.0.0/share/java/confluent-kafka-mqtt/'}, PluginDesc{klass=class org.apache.kafka.connect.tools.VerifiableSourceConnector, name='org.apache.kafka.connect.tools.VerifiableSourceConnector', version='2.0.0-cp1', encodedVersion=2.0.0-cp1, type=source, typeName='source', location='file:/opt/confluent-5.0.0/share/java/confluent-kafka-mqtt/'}" }

name=mqtt-source
tasks.max=1
connector.class=io.confluent.connect.mqtt.MqttSourceConnector
mqtt.server.uri=tcp://10.1.78.100:1883
mqtt.topics=Essen/IMU/IMU01
kafka.topics=mqtt.Essen.IMU.IMU01