[sradman]

As I understand it, Pulsar combines Kafka-like event processing with RabbitMQ-like message queueing in a single system. It came out of Yahoo, is JVM based, and is often combined with Flink or Spark for the streaming interface. At its heart is the Bookkeeper engine which is a wrapper on RocksDB. The comparisons I’ve seen are with Kafka and its advantage is a cleaner and more flexible cluster architecture.