Apache Kafka example error: Failed to send message after 3 tries

Question

I am running this kafka producer example mentioned in its site

The code:

public class TestProducer {

    public static void main(String[] args) {
               


        

Answer 1

This can happen if the client cannot reach BOTH hostname and IP of the kafka broker.

Make an entry to the clients \etc\hosts or C:\Windows\System32\drivers\etc\hosts and that resolved this issue for me.