It's not even just that there are extra services, it's that the volume of traffic is just too high for rabbitmq. So we put a bunch of kafka in and with that, th

It's not even just that there are extra services, it's that the volume of traffic is just too high for rabbitmq. So we put a bunch of kafka in and with that, the complexity quickly went up as you end up writing more and more consumers. Most of the services still mostly "just do crash and error reports" but they are doing it in more scalable ways now. Snuba is one of the services that largely really requires kafka to function though I think theoretically limited functionality is also available by directly talking HTTP to it.