There is oft-quoted advice that Kafka does poorly as a job queue. I’ve experienced this myself, and I wanted to formalize it a bit. I’ll use the common architecture of a Web application submitting background jobs to workers via Kafka (for example, to generate a PDF of some report). Except for the use of Kafka in this role, this is common in Web applications, and (speaking from experience!) when Kafka is already deployed, there is an impulse to use it instead of deploying yet-another queue syste...