We've been using Kafka for almost two years already. Still lots of our codebase is Ruby, and Poseidon is not really that great client library. It's slow and it'

We've been using Kafka for almost two years already. Still lots of our codebase is Ruby, and Poseidon is not really that great client library. It's slow and it's not threadsafe. In our Scala-side we're happy with the current offering.