我试图在我的本地主机上使用 AKKA 运行远程演员,但每次我得到这个错误。它说遇到死信。我在互联网上搜索并发现当演员在其线程停止后收到消息时会出现此错误。所以我正在寻找一种方法来让演员在远程机器上保持活力。我使用的是 akka 演员而不是 scala 演员。
[INFO] [09/16/2013 18:44:51.426] [run-main] [Remoting] Starting remoting
[INFO] [09/16/2013 18:44:51.688] [run-main] [Remoting] Remoting started; listening on addresses :[akka.tcp://actorSystem1@localhost:2209]
[INFO] [09/16/2013 18:44:51.759] [actorSystem2-akka.actor.default-dispatcher-5] [akka://actorSystem2/deadLetters] Message [java.lang.String] from
Actor[akka://actorSystem2/deadLetters] to Actor[akka://actorSystem2/deadLetters] was not delivered. [1] **dead letters encountered**. This logging can be turned off or adjusted with configuration settings 'akka.log-dead-letters' and 'akka.log-dead-letters-during-shutdown'.
以下是代码。
import akka.actor.{Actor, Props, ActorSystem}
import com.typesafe.config.ConfigFactory
import akka.remote._
object MyApp extends App {
val actorSystem1 = ActorSystem("actorSystem1", ConfigFactory.parseString("""
akka {
actor {
provider = "akka.remote.RemoteActorRefProvider"
}
remote {
transport = ["akka.remote.netty.tcp"]
netty.tcp {
hostname = "localhost"
port = 2209
}
}
}
"""))
val actorSystem2 = ActorSystem("actorSystem2")
actorSystem1.actorOf(Props(new Actor {
def receive = {
case x: String =>
Thread.sleep(1000)
println("RECEIVED MESSAGE: " + x)
} }), "simplisticActor")
val remoteActor = actorSystem2.actorFor("akka://actorSystem1@localhost:2209/user/simplisticActor")
remoteActor ! "TEST 1"
remoteActor ! "TEST 2"
Thread.sleep(1000)
actorSystem1.shutdown()
actorSystem2.shutdown()
}
提前致谢。