If you’re trying to “rationalize” a decision, that’s already a red flag. Also, Kafka and RabbitMQ are intended for different use cases. One is (the log componen

If you’re trying to “rationalize” a decision, that’s already a red flag. Also, Kafka and RabbitMQ are intended for different use cases. One is (the log component of) a streaming data processing system, the other is a message queue. Figure out which kind of system you need before deciding on a particular system. BTW, if you need to really scale, Apache Pulsar is designed to handle both scenarios.