I'd be interested in hearing if Cloudflare uses a managed Kafka service like MSK, Confluent, or Aiven. Also would be nice to hear the history and more pain-points in getting Kafka to scale to where they are at now.
Hey,
I'm the blog author.
Cloudflare does not use a managed Kafka service, we run it ourselves. I have shared your interest in a blog post describing the challenges of running Kafka at scale with a Kafka team, so hopefully they will write about it soon!