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kafka-exercise-Sending-Messages-with-Callback.md

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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