title: Akka streams Kafka consumer process parallel
body: <p>I’m working on a Kafka consumer application using Akka Kafka connector.
  I would like the consumer to process messages parallelly.
  which consumer group should I choose <a href="https://doc.akka.io/docs/alpakka-kafka/current/consumer.html?_ga=2.215277015.1554792645.1588739315-1445315762.1588739315" rel="nofollow noreferrer">Choosing a consumer</a>?
  how can I configure the parallelism on the consumer side?</p>