localhost:8083/connectors 호출시 에러가 발생합니다.

Question

wsl2 리눅스에서 서버를 startup 하였고 정상적으로 실행은 되었습니다. startup 후에 localhost:8083/connectors호출 하면 아래와 같은 에러가 발생합니다. org.apache.kafka.connect.errors.ConnectException: Failed to find any class that implements Connector and which name matches io.confluent.connect.jdbc.JdbcSourceConnector, available connectors are: PluginDesc{klass=class org.apache.kafka.connect.file.FileStreamSinkConnector, name='org.apache.kafka.connect.file.FileStreamSinkConnector', version='6.1.0-ccs', encodedVersion=6.1.0-ccs, type=sink, typeName='sink', location='classpath'}, PluginDesc{klass=class org.apache.kafka.connect.file.FileStreamSourceConnector, name='org.apache.kafka.connect.file.FileStreamSourceConnector', version='6.1.0-ccs', encodedVersion=6.1.0-ccs, type=source, typeName='source', location='classpath'}, PluginDesc{klass=class org.apache.kafka.connect.mirror.MirrorCheckpointConnector, name='org.apache.kafka.connect.mirror.MirrorCheckpointConnector', version='1', encodedVersion=1, type=source, typeName='source', location='classpath'}, PluginDesc{klass=class org.apache.kafka.connect.mirror.MirrorHeartbeatConnector, name='org.apache.kafka.connect.mirror.MirrorHeartbeatConnector', version='1', encodedVersion=1, type=source, typeName='source', location='classpath'}, PluginDesc{klass=class org.apache.kafka.connect.mirror.MirrorSourceConnector, name='org.apache.kafka.connect.mirror.MirrorSourceConnector', version='1', encodedVersion=1, type=source, typeName='source', location='classpath'}, PluginDesc{klass=class org.apache.kafka.connect.tools.MockConnector, name='org.apache.kafka.connect.tools.MockConnector', version='6.1.0-ccs', encodedVersion=6.1.0-ccs, type=connector, typeName='connector', location='classpath'}, PluginDesc{klass=class org.apache.kafka.connect.tools.MockSinkConnector, name='org.apache.kafka.connect.tools.MockSinkConnector', version='6.1.0-ccs', encodedVersion=6.1.0-ccs, type=sink, typeName='sink', location='classpath'}, PluginDesc{klass=class org.apache.kafka.connect.tools.MockSourceConnector, name='org.apache.kafka.connect.tools.MockSourceConnector', version='6.1.0-ccs', encodedVersion=6.1.0-ccs, type=source, typeName='source', location='classpath'}, PluginDesc{klass=class org.apache.kafka.connect.tools.SchemaSourceConnector, name='org.apache.kafka.connect.tools.SchemaSourceConnector', version='6.1.0-ccs', encodedVersion=6.1.0-ccs, type=source, typeName='source', location='classpath'}, PluginDesc{klass=class org.apache.kafka.connect.tools.VerifiableSinkConnector, name='org.apache.kafka.connect.tools.VerifiableSinkConnector', version='6.1.0-ccs', encodedVersion=6.1.0-ccs, type=source, typeName='source', location='classpath'}, PluginDesc{klass=class org.apache.kafka.connect.tools.VerifiableSourceConnector, name='org.apache.kafka.connect.tools.VerifiableSourceConnector', version='6.1.0-ccs', encodedVersion=6.1.0-ccs, type=source, typeName='source', location='classpath'}         at org.apache.kafka.connect.runtime.isolation.Plugins.connectorClass(Plugins.java:208)         at org.apache.kafka.connect.runtime.isolation.Plugins.newConnector(Plugins.java:180)         at org.apache.kafka.connect.runtime.AbstractHerder.getConnector(AbstractHerder.java:572)         at org.apache.kafka.connect.runtime.AbstractHerder.validateConnectorConfig(AbstractHerder.java:342)         at org.apache.kafka.connect.runtime.AbstractHerder.lambda$validateConnectorConfig$1(AbstractHerder.java:326)         at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)         at java.util.concurrent.FutureTask.run(FutureTask.java:266)         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)

고동동 · Answer

플러그인 목록에 JDBC 관련 데이터가 출력 안되서  connect-distributed.properties 내용중 plugin.path 경로를 확인해 보니 잘못 입력 되어 있었습니다. 수정후에 정상 작동 하네요. 감사합니다.

Dowon Lee · Answer

안녕하세요, 이도원입니다.  Kafka Connect에서 사용할 수 있는 Connectors plugin이 잘못 설치 된게 아닌가 싶습니다.  http://localhost:8083/connector-plugins 위 커맨드로 현재 사용할 수 있는 플러그인의 종류를 확인해 보시고, JDBC 플로그인이 잘 설치 되는지 확인해 보시기 바랍니다. 정상적으로 설치되었다면, 플러그인 목록에 JdbcSourceConnector 와 같은 목록이 확인됩니다. 감사합니다.