kafka-workshop

Exercise: Sending Messages with Callback

Procedure

1. Review the available send methods in KafkaProducer
2. Read the javadoc of KafkaProducer.send​(ProducerRecord<K,V> record, Callback callback)
   1. Explore Callback interface
3. Answer the following questions with regards to the Callback interface:
   1. What does Callback give when you send a message to an existing topic?
   2. What happens when sending a message to an unexisting topic?
   3. Mind the automatic topic creation feature
4. Duration: 15 mins

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