c

akka.cluster.metrics

AdaptiveLoadBalancingGroup

final case class AdaptiveLoadBalancingGroup(metricsSelector: MetricsSelector = MixMetricsSelector, paths: Iterable[String] = Nil, routerDispatcher: String = Dispatchers.DefaultDispatcherId) extends Group with Product with Serializable

A router group that performs load balancing of messages to cluster nodes based on cluster metric data.

It uses random selection of routees based on probabilities derived from the remaining capacity of corresponding node.

The configuration parameter trumps the constructor arguments. This means that if you provide paths during instantiation they will be ignored if the router is defined in the configuration file for the actor being used.

metricsSelector

decides what probability to use for selecting a routee, based on remaining capacity as indicated by the node metrics

paths

string representation of the actor paths of the routees, messages are sent with akka.actor.ActorSelection to these paths

routerDispatcher

dispatcher to use for the router head actor, which handles router management messages

Annotations
@SerialVersionUID()
Source
ClusterMetricsRouting.scala
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  1. AdaptiveLoadBalancingGroup
  2. Product
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  4. Group
  5. RouterConfig
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Instance Constructors

  1. new AdaptiveLoadBalancingGroup(metricsSelector: MetricsSelector, routeesPaths: Iterable[String])

    Java API

    Java API

    metricsSelector

    decides what probability to use for selecting a routee, based on remaining capacity as indicated by the node metrics

    routeesPaths

    string representation of the actor paths of the routees, messages are sent with akka.actor.ActorSelection to these paths

  2. new AdaptiveLoadBalancingGroup(config: Config, dynamicAccess: DynamicAccess)
  3. new AdaptiveLoadBalancingGroup(metricsSelector: MetricsSelector = MixMetricsSelector, paths: Iterable[String] = Nil, routerDispatcher: String = Dispatchers.DefaultDispatcherId)

    metricsSelector

    decides what probability to use for selecting a routee, based on remaining capacity as indicated by the node metrics

    paths

    string representation of the actor paths of the routees, messages are sent with akka.actor.ActorSelection to these paths

    routerDispatcher

    dispatcher to use for the router head actor, which handles router management messages

Value Members

  1. def createRouter(system: ActorSystem): Router

    Create the actual router, responsible for routing messages to routees.

    Create the actual router, responsible for routing messages to routees.

    system

    the ActorSystem this router belongs to

    Definition Classes
    AdaptiveLoadBalancingGroupRouterConfig
  2. def isManagementMessage(msg: Any): Boolean

    Is the message handled by the router head actor or the #routingLogicController actor.

    Is the message handled by the router head actor or the #routingLogicController actor.

    Definition Classes
    RouterConfig
  3. val metricsSelector: MetricsSelector
  4. def paths(system: ActorSystem): Iterable[String]
    Definition Classes
    AdaptiveLoadBalancingGroupGroup
  5. val paths: Iterable[String]
  6. def props(): Props

    akka.actor.Props for a group router based on the settings defined by this instance.

    akka.actor.Props for a group router based on the settings defined by this instance.

    Definition Classes
    Group
  7. val routerDispatcher: String

    Dispatcher ID to use for running the “head” actor, which handles supervision, death watch and router management messages

    Dispatcher ID to use for running the “head” actor, which handles supervision, death watch and router management messages

    Definition Classes
    AdaptiveLoadBalancingGroupRouterConfig
  8. def routingLogicController(routingLogic: RoutingLogic): Option[Props]

    Possibility to define an actor for controlling the routing logic from external stimuli (e.g.

    Possibility to define an actor for controlling the routing logic from external stimuli (e.g. monitoring metrics). This actor will be a child of the router "head" actor. Management messages not handled by the "head" actor are delegated to this controller actor.

    Definition Classes
    AdaptiveLoadBalancingGroupRouterConfig
  9. def stopRouterWhenAllRouteesRemoved: Boolean
    Definition Classes
    RouterConfig
  10. def verifyConfig(path: ActorPath): Unit

    Check that everything is there which is needed.

    Check that everything is there which is needed. Called in constructor of RoutedActorRef to fail early.

    Definition Classes
    RouterConfig
  11. def withDispatcher(dispatcherId: String): AdaptiveLoadBalancingGroup

    Setting the dispatcher to be used for the router head actor, which handles router management messages

  12. def withFallback(other: RouterConfig): RouterConfig

    Overridable merge strategy, by default completely prefers this (i.e.

    Overridable merge strategy, by default completely prefers this (i.e. no merge).

    Definition Classes
    RouterConfig