Akka/Scala example source code file (ClientDowningNodeThatIsUpSpec.scala)

This example Akka source code file (ClientDowningNodeThatIsUpSpec.scala) is included in my "Source Code Warehouse" project. The intent of this project is to help you more easily find Akka and Scala source code examples by using tags.

All credit for the original source code belongs to akka.io; I'm just trying to make examples easier to find. (For my Scala work, see my Scala examples and tutorials.)

Akka tags/keywords

akka, boolean, client, clientdowningnodethatisupmultinodeconfig, clientdowningnodethatisupspec, clientdowningnodethatisupwithaccrualfailuredetectormultijvmnode1, clientdowningnodethatisupwithfailuredetectorpuppetmultijvmnode3, clientdowningnodethatisupwithfailuredetectorpuppetmultijvmnode4, collection, concurrent, multinodeclusterspec, multinodespec, set, test, testing, time

The ClientDowningNodeThatIsUpSpec.scala Akka example source code

/**
 * Copyright (C) 2009-2014 Typesafe Inc. <http://www.typesafe.com>
 */
package akka.cluster

import com.typesafe.config.ConfigFactory
import scala.concurrent.duration._
import akka.remote.testkit.MultiNodeConfig
import akka.remote.testkit.MultiNodeSpec
import akka.testkit._
import akka.actor.Address
import scala.collection.immutable

final case class ClientDowningNodeThatIsUpMultiNodeConfig(failureDetectorPuppet: Boolean) extends MultiNodeConfig {
  val first = role("first")
  val second = role("second")
  val third = role("third")
  val fourth = role("fourth")

  commonConfig(debugConfig(on = false).withFallback(MultiNodeClusterSpec.clusterConfig(failureDetectorPuppet)))
}

class ClientDowningNodeThatIsUpWithFailureDetectorPuppetMultiJvmNode1 extends ClientDowningNodeThatIsUpSpec(failureDetectorPuppet = true)
class ClientDowningNodeThatIsUpWithFailureDetectorPuppetMultiJvmNode2 extends ClientDowningNodeThatIsUpSpec(failureDetectorPuppet = true)
class ClientDowningNodeThatIsUpWithFailureDetectorPuppetMultiJvmNode3 extends ClientDowningNodeThatIsUpSpec(failureDetectorPuppet = true)
class ClientDowningNodeThatIsUpWithFailureDetectorPuppetMultiJvmNode4 extends ClientDowningNodeThatIsUpSpec(failureDetectorPuppet = true)

class ClientDowningNodeThatIsUpWithAccrualFailureDetectorMultiJvmNode1 extends ClientDowningNodeThatIsUpSpec(failureDetectorPuppet = false)
class ClientDowningNodeThatIsUpWithAccrualFailureDetectorMultiJvmNode2 extends ClientDowningNodeThatIsUpSpec(failureDetectorPuppet = false)
class ClientDowningNodeThatIsUpWithAccrualFailureDetectorMultiJvmNode3 extends ClientDowningNodeThatIsUpSpec(failureDetectorPuppet = false)
class ClientDowningNodeThatIsUpWithAccrualFailureDetectorMultiJvmNode4 extends ClientDowningNodeThatIsUpSpec(failureDetectorPuppet = false)

abstract class ClientDowningNodeThatIsUpSpec(multiNodeConfig: ClientDowningNodeThatIsUpMultiNodeConfig)
  extends MultiNodeSpec(multiNodeConfig)
  with MultiNodeClusterSpec {

  def this(failureDetectorPuppet: Boolean) = this(ClientDowningNodeThatIsUpMultiNodeConfig(failureDetectorPuppet))

  import multiNodeConfig._

  "Client of a 4 node cluster" must {

    "be able to DOWN a node that is UP (healthy and available)" taggedAs LongRunningTest in {
      val thirdAddress = address(third)
      awaitClusterUp(first, second, third, fourth)

      runOn(first) {
        // mark 'third' node as DOWN
        cluster.down(thirdAddress)
        enterBarrier("down-third-node")

        markNodeAsUnavailable(thirdAddress)

        awaitMembersUp(numberOfMembers = 3, canNotBePartOfMemberRing = Set(thirdAddress))
        clusterView.members.exists(_.address == thirdAddress) should be(false)
      }

      runOn(third) {
        enterBarrier("down-third-node")
      }

      runOn(second, fourth) {
        enterBarrier("down-third-node")

        awaitMembersUp(numberOfMembers = 3, canNotBePartOfMemberRing = Set(thirdAddress))
      }

      enterBarrier("await-completion")
    }
  }
}