kafka -avro 연동과 관련된 좋은 자료이다.
https://blog.cloudera.com/blog/2018/07/robust-message-serialization-in-apache-kafka-using-apache-avro-part-1/
https://blog.cloudera.com/blog/2018/07/robust-message-serialization-in-apache-kafka-using-apache-avro-part-2/
https://blog.cloudera.com/blog/2018/08/robust-message-serialization-in-apache-kafka-using-apache-avro-part-3/
