raboof/pekko
1
0
Fork 0
Code Issues Pull requests Projects Releases 6 Packages Wiki Activity Actions 10

Reintroduce 'seed' nodes, see #2219

Browse source 
* Implement the join to seed nodes process
  When a new node is started started it sends a message to all
  seed nodes and then sends join command to the one that answers
  first.
* Configuration of seed-nodes and auto-join
* New JoinSeedNodeSpec that verifies the auto join to seed nodes
* In tests seed nodes are configured by overriding seedNodes
  function, since addresses are not known before start
* Deputy nodes are the live members of the seed nodes (not sure if
  that will be the final solution, see ticket 2252
* Updated cluster.rst with latest info about deputy and seed nodes
This commit is contained in:
Patrik Nordwall 2012-06-21 10:58:35 +02:00
parent a7c8d7da10
commit 42078e7083
10 changed files with 166 additions and 45 deletions
Download patch file Download diff file Expand all files Collapse all files

31
akka-cluster/src/test/scala/akka/cluster/ClusterSpec.scala
View file

@ -11,12 +11,13 @@ import akka.actor.ExtendedActorSystem
import akka.actor.Address
import java.util.concurrent.atomic.AtomicInteger
import org.scalatest.BeforeAndAfter
import akka.remote.RemoteActorRefProvider
object ClusterSpec {
val config = """
akka.cluster {
auto-join = off
auto-down = off
nr-of-deputy-nodes = 3
periodic-tasks-initial-delay = 120 seconds // turn off scheduled tasks
}
akka.actor.provider = "akka.remote.RemoteActorRefProvider"
@ -31,12 +32,24 @@ object ClusterSpec {
class ClusterSpec extends AkkaSpec(ClusterSpec.config) with BeforeAndAfter {
import ClusterSpec._
val selfAddress = system.asInstanceOf[ExtendedActorSystem].provider.asInstanceOf[RemoteActorRefProvider].transport.address
val addresses = IndexedSeq(
selfAddress,
Address("akka", system.name, selfAddress.host.get, selfAddress.port.get + 1),
Address("akka", system.name, selfAddress.host.get, selfAddress.port.get + 2),
Address("akka", system.name, selfAddress.host.get, selfAddress.port.get + 3),
Address("akka", system.name, selfAddress.host.get, selfAddress.port.get + 4),
Address("akka", system.name, selfAddress.host.get, selfAddress.port.get + 5))
val deterministicRandom = new AtomicInteger
val failureDetector = new FailureDetectorPuppet(system)
val cluster = new Cluster(system.asInstanceOf[ExtendedActorSystem], failureDetector) {
// 3 deputy nodes (addresses index 1, 2, 3)
override def seedNodes = addresses.slice(1, 4)
override def selectRandomNode(addresses: IndexedSeq[Address]): Option[Address] = {
if (addresses.isEmpty) None
else Some(addresses.toSeq(deterministicRandom.getAndIncrement % addresses.size))
@ -68,15 +81,6 @@ class ClusterSpec extends AkkaSpec(ClusterSpec.config) with BeforeAndAfter {
}
val selfAddress = cluster.self.address
val addresses = IndexedSeq(
selfAddress,
Address("akka", system.name, selfAddress.host.get, selfAddress.port.get + 1),
Address("akka", system.name, selfAddress.host.get, selfAddress.port.get + 2),
Address("akka", system.name, selfAddress.host.get, selfAddress.port.get + 3),
Address("akka", system.name, selfAddress.host.get, selfAddress.port.get + 4),
Address("akka", system.name, selfAddress.host.get, selfAddress.port.get + 5))
def memberStatus(address: Address): Option[MemberStatus] =
cluster.latestGossip.members.collectFirst { case m if m.address == address ⇒ m.status }
@ -89,6 +93,11 @@ class ClusterSpec extends AkkaSpec(ClusterSpec.config) with BeforeAndAfter {
"A Cluster" must {
"use the address of the remote transport" in {
cluster.selfAddress must be(selfAddress)
cluster.self.address must be(selfAddress)
}
"initially be singleton cluster and reach convergence immediately" in {
cluster.isSingletonCluster must be(true)
cluster.latestGossip.members.map(_.address) must be(Set(selfAddress))
@ -161,7 +170,7 @@ class ClusterSpec extends AkkaSpec(ClusterSpec.config) with BeforeAndAfter {
"gossip to duputy node" in {
cluster._gossipToDeputyProbablity = 1.0 // always
// we have configured 2 deputy nodes
// we have configured 3 deputy nodes (seedNodes)
cluster.gossip() // 1 is deputy
cluster.gossip() // 2 is deputy
cluster.gossip() // 3 is deputy