I have Akka application which is essentially traverses a very large tree where each vertex processing is done by an individual actor. Different kinds of vertices are processed by different actors. The actors are implemented as prototype Spring beans (they are derived from the same abstract class) and I am using Akka/Spring integration from Akka Spring integration <https://github.com/typesafehub/activator-akka-java-spring>. The only two differences between the githib example and my code is that I use configuration file to configure the routers and the way I get actor references. Since the example only uses one actor it creates it like
system.actorOf(SpringExtProvider.get(system).props("CountingActor"), "counter"); My actor system is hierarchical and I create my actors differently public ActorRef createActorRef(String actorBeanName, String actorRouterName) { ActorRef actor = null; final scala.Option<ActorRef> child = context().child(actorRouterName); if (child != null && child.isDefined()) { actor = child.get(); } else { actor = getContext().actorOf(SpringExtProvider.get(system).props(actorBeanName).withRouter(new FromConfig()), actorRouterName); } } When my system is running for few days it runs out of memory. I ran the profiler and discovered that there is a huge number of actor's Spring beans being instantiated. So I instrumented my actors with the instance counters: public abstract class MyActor extends UntypedActor { private static AtomicInteger instantiationCount = new AtomicInteger(0); public MyActor() { logger.info("ACTOR CREATED. Instantiation count {}", instantiationCount.getAndIncrement()); } @Override protected void finalize() { logger.info("ACTOR FINALIZED. Instantiation count {}", instantiationCount.getAndDecrement()); } } When I run my application I see constant flow of "ACTOR CREATED" log entries with ever incrementing counter with the finalize() method never called. Eventually after few days of running the system runs out of memory. I am wondering if I am doing something wrong with obtaining the actor references or there is some issues with Akka/Spring integration -- >>>>>>>>>> Read the docs: http://akka.io/docs/ >>>>>>>>>> Check the FAQ: >>>>>>>>>> http://doc.akka.io/docs/akka/current/additional/faq.html >>>>>>>>>> Search the archives: https://groups.google.com/group/akka-user --- You received this message because you are subscribed to the Google Groups "Akka User List" group. To unsubscribe from this group and stop receiving emails from it, send an email to akka-user+unsubscr...@googlegroups.com. To post to this group, send email to akka-user@googlegroups.com. Visit this group at https://groups.google.com/group/akka-user. For more options, visit https://groups.google.com/d/optout.