Patrik Nordwall patriknw
patriknw
/ ConsistentHashingRouterSpotlight.scala
Created
October 3, 2012 12:16
Spotlight for ConsistentHashingRouter
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| import akka.routing.ConsistentHashingRouter | |
| import akka.routing.ConsistentHashingRouter.ConsistentHashMapping | |
| import akka.actor.Actor | |
| import akka.pattern.ask | |
| case class Entry(key: String, value: String) | |
| class Cache extends Actor { | |
| var cache = Map.empty[String, String] | |
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| akka.actor.deployment { | |
| /statsService/workerRouter { | |
| router = round-robin | |
| nr-of-instances = 100 | |
| cluster { | |
| enabled = on | |
| routees-path = "/user/statsWorker" | |
| } | |
| } | |
| } |
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| import akka.cluster.Cluster | |
| import akka.cluster.ClusterEvent._ | |
| val clusterListener = system.actorOf(Props(new Actor with ActorLogging { | |
| def receive = { | |
| case state: CurrentClusterState ⇒ | |
| log.info("Current members: {}", state.members) | |
| case MemberUp(member) ⇒ | |
| log.info("Member is up: {}", member) | |
| // send a message to the "world" actor running at the member node |
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| case object BackendRegistration | |
| case class Job(text: String) | |
| class Frontend extends Actor { | |
| var backends = IndexedSeq.empty[ActorRef] | |
| var jobCounter = 0 | |
| def receive = { | |
| case job: Job if backends.isEmpty => |
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| package example | |
| import java.util.concurrent.ConcurrentHashMap | |
| import java.util.concurrent.ConcurrentLinkedQueue | |
| import com.typesafe.config.Config | |
| import com.typesafe.config.ConfigFactory | |
| import akka.actor.Actor | |
| import akka.actor.ActorContext | |
| import akka.actor.ActorRef | |
| import akka.actor.ActorSystem |
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| import akka.actor.{ Actor, ActorRef, Props, ActorSystem } | |
| import akka.camel.{ CamelExtension, CamelMessage, Consumer, Producer } | |
| import org.apache.activemq.camel.component.ActiveMQComponent | |
| object CamelDemo extends App { | |
| val system = ActorSystem("CamelDemo") | |
| CamelExtension(system).context.addComponent("activemq", | |
| ActiveMQComponent.activeMQComponent( | |
| "vm://localhost?broker.persistent=false")) |
patriknw
/ ClusterSingletonManager.scala
Created
January 27, 2013 19:18
Port of ClusterSingletonManager to Akka 2.1.0. Use the 2.1.1 version when that is out.
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| /** | |
| * Copyright (C) 2009-2013 Typesafe Inc. <http://www.typesafe.com> | |
| */ | |
| package akka.contrib.pattern | |
| import scala.concurrent.duration._ | |
| import akka.actor.Actor | |
| import akka.actor.Actor.Receive | |
| import akka.actor.ActorLogging |
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| val backend = context.actorOf(Props[FactorialBackend]. | |
| withRouter(FromConfig), name = "factorialBackendRouter") |
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| akka.actor.deployment { | |
| /factorialFrontend/factorialBackendRouter = { | |
| router = adaptive | |
| # metrics-selector = heap | |
| # metrics-selector = load | |
| # metrics-selector = cpu | |
| metrics-selector = mix | |
| nr-of-instances = 100 | |
| cluster { | |
| enabled = on |
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| akka.cluster.min-nr-of-members = 3 |