AskTimeoutException: Timed out - Play Framework 2.1

Question

>我正在Play框架中开发一种元启发式算法，并且必须有无限期的超时。加载一个小时后，我收到以下错误：

[询问超时异常：超时]

! @6g40d7af9 - Internal server error, for (GET) [/planificar] ->
play.api.Application$$anon$1: Execution exception[[AskTimeoutException: Timed out]]
    at play.api.Application$class.handleError(Application.scala:289) ~[play_2.10.jar:2.1.1]
    at play.api.DefaultApplication.handleError(Application.scala:383) ~[play_2.10.jar:2.1.1]
    at play.core.server.netty.PlayDefaultUpstreamHandler$$anon$2$$anonfun$handle$1.apply(PlayDefaultUpstreamHandler.scala:144) ~[play_2.10.jar:2.1.1]
    at play.core.server.netty.PlayDefaultUpstreamHandler$$anon$2$$anonfun$handle$1.apply(PlayDefaultUpstreamHandler.scala:140) ~[play_2.10.jar:2.1.1]
    at play.api.libs.concurrent.PlayPromise$$anonfun$extend1$1.apply(Promise.scala:113) ~[play_2.10.jar:2.1.1]
    at play.api.libs.concurrent.PlayPromise$$anonfun$extend1$1.apply(Promise.scala:113) ~[play_2.10.jar:2.1.1]
    at play.api.libs.concurrent.PlayPromise$$anonfun$extend$1$$anonfun$apply$1.apply(Promise.scala:104) ~[play_2.10.jar:2.1.1]
    at scala.concurrent.impl.Future$PromiseCompletingRunnable.liftedTree1$1(Future.scala:24) ~[scala-library.jar:na]
    at scala.concurrent.impl.Future$PromiseCompletingRunnable.run(Future.scala:24) ~[scala-library.jar:na]
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) ~[na:1.7.0_25]
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) ~[na:1.7.0_25]
    at java.lang.Thread.run(Thread.java:724) ~[na:1.7.0_25]
akka.pattern.AskTimeoutException: Timed out
    at akka.pattern.PromiseActorRef$$anonfun$1.apply$mcV$sp(AskSupport.scala:310) ~[akka-actor_2.10.jar:na]
    at akka.actor.DefaultScheduler$$anon$8.run(Scheduler.scala:193) ~[akka-actor_2.10.jar:na]
    at akka.dispatch.TaskInvocation.run(AbstractDispatcher.scala:137) ~[akka-actor_2.10.jar:na]
    at scala.concurrent.forkjoin.ForkJoinTask$AdaptedRunnableAction.exec(ForkJoinTask.java:1417) ~[scala-library.jar:na]
    at scala.concurrent.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:262) ~[scala-library.jar:na]
    at scala.concurrent.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:975) ~[scala-library.jar:na]
    at scala.concurrent.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1478) ~[scala-library.jar:na]
    at scala.concurrent.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:104) ~[scala-library.jar:na]

有没有办法解决这个问题？谢谢。

编辑：

这是我的控制器

public static Result planificar() {
        Carga.cargarGlobales();
        Moacs moacs = new Moacs(cargarParametros());
        moacs.ejecutar(); // metaheuristics algorithm
        List<Solucion> soluciones =  moacs.getConjuntoPareto();            
        return ok(soluciones);
    }

Answer 1

你应该把它变成一个异步控制器： http://www.playframework.com/documentation/2.2.x/JavaAsync

Answer 2

您可以将超时设置为非常大的值。根据 Scala 文档，FiniteDuration的范围限制为 +-（2^63-1）ns，大约为 292 年。

例如，可以这样做：

(someActor ? someMsg)(365 Days).map { x => .... }