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

This example Akka source code file (NodeLeavingAndExitingAndBeingRemovedSpec.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

a, akka, cluster, collection, concurrent, leaving, longrunningtest, multinodeclusterspec, multinodespec, nodeleavingandexitingandbeingremovedmultijvmnode1, nodeleavingandexitingandbeingremovedmultijvmnode2, nodeleavingandexitingandbeingremovedmultijvmnode3, nodeleavingandexitingandbeingremovedmultijvmspec, nodeleavingandexitingandbeingremovedspec, test, testing, time

The NodeLeavingAndExitingAndBeingRemovedSpec.scala Akka example source code

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

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

object NodeLeavingAndExitingAndBeingRemovedMultiJvmSpec extends MultiNodeConfig {
  val first = role("first")
  val second = role("second")
  val third = role("third")

  commonConfig(debugConfig(on = false).withFallback(ConfigFactory.parseString(
    "akka.cluster.auto-down-unreachable-after = 0s")).
    withFallback(MultiNodeClusterSpec.clusterConfigWithFailureDetectorPuppet))
}

class NodeLeavingAndExitingAndBeingRemovedMultiJvmNode1 extends NodeLeavingAndExitingAndBeingRemovedSpec
class NodeLeavingAndExitingAndBeingRemovedMultiJvmNode2 extends NodeLeavingAndExitingAndBeingRemovedSpec
class NodeLeavingAndExitingAndBeingRemovedMultiJvmNode3 extends NodeLeavingAndExitingAndBeingRemovedSpec

abstract class NodeLeavingAndExitingAndBeingRemovedSpec
  extends MultiNodeSpec(NodeLeavingAndExitingAndBeingRemovedMultiJvmSpec)
  with MultiNodeClusterSpec {

  import NodeLeavingAndExitingAndBeingRemovedMultiJvmSpec._

  "A node that is LEAVING a non-singleton cluster" must {

    "eventually set to REMOVED and removed from membership ring and seen table" taggedAs LongRunningTest in {

      awaitClusterUp(first, second, third)

      within(30.seconds) {
        runOn(first) {
          cluster.leave(second)
        }
        enterBarrier("second-left")

        runOn(first, third) {
          enterBarrier("second-shutdown")
          markNodeAsUnavailable(second)
          // verify that the 'second' node is no longer part of the 'members'/'unreachable' set
          awaitAssert {
            clusterView.members.map(_.address) should not contain (address(second))
          }
          awaitAssert {
            clusterView.unreachableMembers.map(_.address) should not contain (address(second))
          }
        }

        runOn(second) {
          // verify that the second node is shut down
          awaitCond(cluster.isTerminated)
          enterBarrier("second-shutdown")
        }
      }

      enterBarrier("finished")
    }
  }
}