I am trying to connect Kafka with InfluxDB. This is my InfluxSink.properties, basically connector.
name=influxdb
connector.class=com.github.jcustenborder.kafka.connect.influxdb.InfluxDBSinkConnector
tasks.max=1
topics=influx
connect.influx.url=http://influxdb:8086
connect.influx.db=mydb
connect.influx.username=admin
but while running my connector I am facing this error!
ERROR Stopping due to error (org.apache.kafka.connect.cli.ConnectStandalone:126)
java.lang.NoClassDefFoundError: com/github/jcustenborder/kafka/connect/utils/VersionUtil
at com.github.jcustenborder.kafka.connect.influxdb.InfluxDBSinkConnector.version(InfluxDBSinkConnector.java:41)
at org.apache.kafka.connect.runtime.isolation.DelegatingClassLoader.versionFor(DelegatingClassLoader.java:387)
at org.apache.kafka.connect.runtime.isolation.DelegatingClassLoader.versionFor(DelegatingClassLoader.java:392)
at org.apache.kafka.connect.runtime.isolation.DelegatingClassLoader.getPluginDesc(DelegatingClassLoader.java:362)
at org.apache.kafka.connect.runtime.isolation.DelegatingClassLoader.scanPluginPath(DelegatingClassLoader.java:334)
at org.apache.kafka.connect.runtime.isolation.DelegatingClassLoader.scanUrlsAndAddPlugins(DelegatingClassLoader.java:268)
at org.apache.kafka.connect.runtime.isolation.DelegatingClassLoader.initPluginLoader(DelegatingClassLoader.java:216)
at org.apache.kafka.connect.runtime.isolation.DelegatingClassLoader.initLoaders(DelegatingClassLoader.java:209)
at org.apache.kafka.connect.runtime.isolation.Plugins.<init>(Plugins.java:61)
at org.apache.kafka.connect.cli.ConnectStandalone.main(ConnectStandalone.java:78)
Caused by: java.lang.ClassNotFoundException: com.github.jcustenborder.kafka.connect.utils.VersionUtil
at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:636)
at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:182)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:519)
... 10 more
How can I remove this error. Suggestions needed! Thanks in advance.
You've not installed the connector correctly. The best route is to download it from Confluent Hub and install using the provided CLI, or unzip it into the Kafka Connect plugin folder (update plugin.path if needed).
I believe that InfluxDB connector has been removed by the author and replaced by this one. You'll probably find old copies of it or forks of the original repository lying around, but bear in mind they'll be several years out of date.