Facing error while running Hands-in training example “writing to Apache Kafka”

Posted by ahmad Sa P on
URL: http://deprecated-apache-flink-user-mailing-list-archive.369.s1.nabble.com/Facing-error-while-running-Hands-in-training-example-writing-to-Apache-Kafka-tp7292.html

Hi
I have a problem at running a sample code from the hands-in examples of Apache Flink,
I used the  following code to send output of a stream to already running Apache Kafka, and get the below error. Could anyone tell me what is going wrong?

Best regards
Ahmad

public class RideCleansing {

    private static final String LOCAL_KAFKA_BROKER = "localhost:9092";
    public static final String CLEANSED_RIDES_TOPIC = "mytopic";


    public static void main(String[] args) throws Exception {

        StreamExecutionEnvironment env = StreamExecutionEnvironment.getExecutionEnvironment();

        DataStream<TaxiRide> rides = env.addSource(new TaxiRideGenerator("C://data/nycTaxiRides.gz", 1000.0f));

        DataStream<TaxiRide> filteredRides = rides.filter(new NYCFilter());

        filteredRides.addSink(new FlinkKafkaProducer<>(LOCAL_KAFKA_BROKER,
                CLEANSED_RIDES_TOPIC,
                new TaxiRideSchema()));

        env.execute("Taxi Ride Cleansing");
    }

Error:
18:43:15,734 INFO  org.apache.flink.api.java.typeutils.TypeExtractor        - class org.joda.time.DateTime is not a valid POJO type
Exception in thread "main" java.lang.NoClassDefFoundError: kafka/producer/Partitioner
    at java.lang.ClassLoader.defineClass1(Native Method)
    at java.lang.ClassLoader.defineClass(ClassLoader.java:760)
    at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
    at java.net.URLClassLoader.defineClass(URLClassLoader.java:455)
    at java.net.URLClassLoader.access$100(URLClassLoader.java:73)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:367)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:360)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
    at com.dataArtisans.flinkTraining.exercises.dataStreamJava.rideCleansing.RideCleansing.main(RideCleansing.java:51)
Caused by: java.lang.ClassNotFoundException: kafka.producer.Partitioner
    at java.net.URLClassLoader$1.run(URLClassLoader.java:372)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:360)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
    ... 13 more