In the case where a single application launches multiple ActorSystem instances (e.g. with Kamon this is unavoidable) the akka.actor.provider = ClusterActorRefProvider setting causes both actor systems to attempt the initialization of akka remoting. Only one attempt will succeed in the case both bind on the same port (the default).
In the case where a single application launches multiple ActorSystem instances (e.g. with Kamon this is unavoidable) the
akka.actor.provider = ClusterActorRefProvidersetting causes both actor systems to attempt the initialization of akka remoting. Only one attempt will succeed in the case both bind on the same port (the default).