Akka流中的ActorSystem关闭

Question

我有一个akka流，该流连续不断地使用kafka主题中的数据。 我从未关闭过actorsystem，我不希望我的应用程序关闭是正确的方法吗？处理actorySystem关闭的正确方法是什么？

  implicit val actorSystem: ActorSystem = ActorSystem("mytest")
  implicit val materializer: ActorMaterializer =
    ActorMaterializer(ActorMaterializerSettings(actorSystem).withSupervisionStrategy(decider))

  val actorConfig = actorSystem.settings.config.getConfig("akka.kafka.consumer")

  val consumerSettings =
    ConsumerSettings(actorConfig, new StringDeserializer, new StringDeserializer)
      .withBootstrapServers(config.getString("kafka.hosts"))
      .withGroupId("mytestgrp")


  val flow = Consumer
    .atMostOnceSource(consumerSettings, Subscriptions.topics(config.getString("kafka.topic")))
    .grouped(500)
    .map(Pipeline.process)
    .withAttributes(supervisionStrategy(decider))

  flow.runWith(Sink.ignore)

Answer 1

流完成后，您可以关闭actor系统

flow.runWith(Sink.ignore).onComplete {
    case _ => actorSystem.shutdown
}