[英]Setting Bounded mailbox for an actor that uses stashing
我有一個依靠藏匿的演員。 Stashing需要UnboundedDequeBasedMailbox
。 是否可以與Bounded
郵箱一起使用存儲?
正如Arnaud指出的那樣,我的設置是:
Actor with UnrestrictedStash with RequiresMessageQueue[BoundedDequeBasedMessageQueueSemantics]
和配置:
akka {
loggers = ["akka.event.slf4j.Slf4jLogger"]
loglevel = INFO
daemonic = on
actor {
mailbox {
bounded-deque-based {
mailbox-type = "akka.dispatch.BoundedDequeBasedMailbox"
mailbox-capacity = 2000
mailbox-push-timeout-time = 5s
}
requirements {
"akka.dispatch.BoundedDequeBasedMessageQueueSemantics" = akka.actor.mailbox.bounded-deque-based
}
}
}
}
錯誤是:
[ERROR] 2013/12/06 14:03:58.268 [r-4] a.a.OneForOneStrategy - DequeBasedMailbox required, got: akka.dispatch.UnboundedMailbox$MessageQueue
An (unbounded) deque-based mailbox can be configured as follows:
my-custom-mailbox {
mailbox-type = "akka.dispatch.UnboundedDequeBasedMailbox"
}
akka.actor.ActorInitializationException: exception during creation
at akka.actor.ActorInitializationException$.apply(Actor.scala:218) ~[akka-actor_2.10-2.2.0.jar:2.2.0]
at akka.actor.ActorCell.create(ActorCell.scala:578) ~[akka-actor_2.10-2.2.0.jar:2.2.0]
at akka.actor.ActorCell.invokeAll$1(ActorCell.scala:425) ~[akka-actor_2.10-2.2.0.jar:2.2.0]
at akka.actor.ActorCell.systemInvoke(ActorCell.scala:447) ~[akka-actor_2.10-2.2.0.jar:2.2.0]
at akka.dispatch.Mailbox.processAllSystemMessages(Mailbox.scala:262) ~[akka-actor_2.10-2.2.0.jar:2.2.0]
at akka.dispatch.Mailbox.run(Mailbox.scala:218) ~[akka-actor_2.10-2.2.0.jar:2.2.0]
at akka.dispatch.ForkJoinExecutorConfigurator$AkkaForkJoinTask.exec(AbstractDispatcher.scala:386) [akka-actor_2.10-2.2.0.jar:2.2.0]
at scala.concurrent.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260) [scala-library-2.10.2.jar:na]
at scala.concurrent.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1339) [scala-library-2.10.2.jar:na]
at scala.concurrent.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979) [scala-library-2.10.2.jar:na]
at scala.concurrent.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107) [scala-library-2.10.2.jar:na]
Caused by: akka.actor.ActorInitializationException: DequeBasedMailbox required, got: akka.dispatch.UnboundedMailbox$MessageQueue
An (unbounded) deque-based mailbox can be configured as follows:
my-custom-mailbox {
mailbox-type = "akka.dispatch.UnboundedDequeBasedMailbox"
}
at akka.actor.ActorInitializationException$.apply(Actor.scala:218) ~[akka-actor_2.10-2.2.0.jar:2.2.0]
at akka.actor.UnrestrictedStash$class.$init$(Stash.scala:82) ~[akka-actor_2.10-2.2.0.jar:2.2.0]
at com.fg.mail.smtp.index.Indexer.<init>(Indexer.scala:38) ~[classes/:na]
at com.fg.mail.smtp.Supervisor$$anonfun$preStart$1.apply(Supervisor.scala:20) ~[classes/:na]
at com.fg.mail.smtp.Supervisor$$anonfun$preStart$1.apply(Supervisor.scala:20) ~[classes/:na]
at akka.actor.CreatorFunctionConsumer.produce(Props.scala:369) ~[akka-actor_2.10-2.2.0.jar:2.2.0]
at akka.actor.Props.newActor(Props.scala:323) ~[akka-actor_2.10-2.2.0.jar:2.2.0]
at akka.actor.ActorCell.newActor(ActorCell.scala:534) ~[akka-actor_2.10-2.2.0.jar:2.2.0]
at akka.actor.ActorCell.create(ActorCell.scala:560) ~[akka-actor_2.10-2.2.0.jar:2.2.0]
... 9 common frames omitted
如果我做Props.withMailbox("bounded-deque-based")
那么我得到
Caused by: akka.ConfigurationException: Mailbox Type [bounded-deque-based] not configured
答案:感謝Arnaud:問題是配置,基於bounded-deque的配置塊應該與akka配置塊處於同一級別。 在這種情況下, 文檔完全是誤導性的......
akka {
loggers = ["akka.event.slf4j.Slf4jLogger"]
loglevel = INFO
daemonic = on
actor {
mailbox {
requirements {
"akka.dispatch.BoundedDequeBasedMessageQueueSemantics" = akka.actor.mailbox.bounded-deque-based
}
}
}
}
bounded-deque-based {
mailbox-type = "akka.dispatch.BoundedDequeBasedMailbox"
mailbox-capacity = 2000
mailbox-push-timeout-time = 5s
}
根據官方Akka 存儲文檔,您可以決定使用不強制執行任何郵箱類型的Stash特征,請參閱UnrestrictedStash 。
如果使用UnrestrictedStash,只要它擴展了akka.dispatch.DequeBasedMessageQueueSemantics標記特征,您就可以手動配置正確的郵箱。
您可以在郵箱doc之后手動配置BoundedMailbox郵箱,例如:
bounded-mailbox {
mailbox-type = "akka.dispatch.BoundedDequeBasedMailbox"
mailbox-capacity = 1000
mailbox-push-timeout-time = 10s
}
akka.actor.mailbox.requirements {
"akka.dispatch.BoundedDequeBasedMessageQueueSemantics" = bounded-mailbox
}
我自己沒有嘗試,但它應該工作。
編輯:您使用的是什么版本的Akka? 看起來隱藏特征定義隨版本2.2.0而改變
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