scala - PinnedDispatcher 不工作（Akka 2.2-M3）

Question

我是 Akka 的新手，我正在尝试完成入门系列。我能够配置 Dispatcher，现在我正在尝试配置 PinnedDispatcher。我按照入门页面的指示进行操作，但收到错误消息

[WARN] [06/19/2013 12:53:13.791] [System-akka.actor.default-dispatcher-5] [Dispatchers] Dispatcher [akka.actor.my-pinned-dispatcher] not configured, using default-dispatcher

这是斯卡拉代码：

val system = ActorSystem("System")
val a = system.actorOf(Props[TestActor].withDispatcher("akka.actor.my-pinned-dispatcher")) //this doesnt work

val a = system.actorOf(Props[TestActor].withDispatcher("akka.actor.my-dispatcher")) //this does work

a ! "Hello World"

system.shutdown()

class TestActor extends Actor {
def receive = {
    case s: String => println(s)
}
}

这是我的 application.conf

akka {
actor {
    my-pinned-dispatcher {
        executor = "thread-pool-executor"
        type = PinnedDispatcher
    }

    my-dispatcher {
        type = Dispatcher

        executor = "fork-join-executor"

        fork-join-executor {
            parallelism-min = 2

            parallelism-factor = 2.0

            parallelism-max = 10
        }

        throughput = 100
    }
}
}

我是否错误地配置了 PinnedDispatcher？