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Cluster metrics internal API and cluster-wide transport of metrics data.

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* Create Cluster Metrics API
* Create transport of relevant metrics data
Does not include load-balancing routers.
This commit is contained in:
Helena Edelson 2012-09-24 13:07:11 -06:00
parent 9a20baa831
commit dbce1c8b85
16 changed files with 1295 additions and 7 deletions
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16
akka-cluster/src/main/scala/akka/cluster/ClusterDaemon.scala
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@ -7,7 +7,7 @@ import scala.collection.immutable.SortedSet
import scala.concurrent.util.{ Deadline, Duration }
import scala.concurrent.util.duration._
import scala.concurrent.forkjoin.ThreadLocalRandom
import akka.actor.{ Actor, ActorLogging, ActorRef, Address, Cancellable, Props, ReceiveTimeout, RootActorPath, PoisonPill, Scheduler }
import akka.actor.{ Actor, ActorLogging, ActorRef, Address, Cancellable, Props, ReceiveTimeout, RootActorPath, Scheduler }
import akka.actor.Status.Failure
import akka.event.EventStream
import akka.pattern.ask
@ -94,6 +94,8 @@ private[cluster] object InternalClusterAction {
case object ReapUnreachableTick extends Tick
case object MetricsTick extends Tick
case object LeaderActionsTick extends Tick
case object PublishStatsTick extends Tick
@ -152,6 +154,8 @@ private[cluster] final class ClusterDaemon(settings: ClusterSettings) extends Ac
withDispatcher(context.props.dispatcher), name = "core")
val heartbeat = context.actorOf(Props[ClusterHeartbeatDaemon].
withDispatcher(context.props.dispatcher), name = "heartbeat")
if (settings.MetricsEnabled) context.actorOf(Props[ClusterMetricsCollector].
withDispatcher(context.props.dispatcher), name = "metrics")
def receive = {
case InternalClusterAction.GetClusterCoreRef ⇒ sender ! core
@ -214,8 +218,8 @@ private[cluster] final class ClusterCoreDaemon extends Actor with ActorLogging {
self ! LeaderActionsTick
}
// start periodic publish of current state
private val publishStateTask: Option[Cancellable] =
// start periodic publish of current stats
private val publishStatsTask: Option[Cancellable] =
if (PublishStatsInterval == Duration.Zero) None
else Some(FixedRateTask(scheduler, PeriodicTasksInitialDelay.max(PublishStatsInterval).asInstanceOf[FiniteDuration], PublishStatsInterval) {
self ! PublishStatsTick
@ -230,7 +234,7 @@ private[cluster] final class ClusterCoreDaemon extends Actor with ActorLogging {
heartbeatTask.cancel()
failureDetectorReaperTask.cancel()
leaderActionsTask.cancel()
publishStateTask foreach { _.cancel() }
publishStatsTask foreach { _.cancel() }
}
def uninitialized: Actor.Receive = {
@ -875,7 +879,7 @@ private[cluster] final class JoinSeedNodeProcess(seedNodes: IndexedSeq[Address])
case JoinSeedNode ⇒
// send InitJoin to all seed nodes (except myself)
seedNodes.collect {
case a if a != selfAddress ⇒ context.system.actorFor(context.parent.path.toStringWithAddress(a))
case a if a != selfAddress ⇒ context.actorFor(context.parent.path.toStringWithAddress(a))
} foreach { _ ! InitJoin }
case InitJoinAck(address) ⇒
// first InitJoinAck reply
@ -904,7 +908,7 @@ private[cluster] final class ClusterCoreSender extends Actor with ActorLogging {
* Looks up and returns the remote cluster command connection for the specific address.
*/
private def clusterCoreConnectionFor(address: Address): ActorRef =
context.system.actorFor(RootActorPath(address) / "system" / "cluster" / "core")
context.actorFor(RootActorPath(address) / "system" / "cluster" / "core")
def receive = {
case SendClusterMessage(to, msg) ⇒