colossus.service

LoadBalancingClient

class LoadBalancingClient[I, O] extends LocalClient[I, O] with WorkerItem

The LoadBalancingClient will evenly distribute requests across a set of clients. If one client begins failing, the balancer will retry up to numRetries times across the other clients (with each failover hitting different clients to avoid a cascading pileup

Note that the balancer will never try the same client twice for a request, so setting maxTries to a very large number will mean that every client will be tried once

Linear Supertypes
WorkerItem, LocalClient[I, O], ClientLike[I, O, Callback], AnyRef, Any
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Inherited
  1. LoadBalancingClient
  2. WorkerItem
  3. LocalClient
  4. ClientLike
  5. AnyRef
  6. Any
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Visibility
  1. Public
  2. All

Instance Constructors

  1. new LoadBalancingClient(worker: WorkerRef, generator: (InetSocketAddress) ⇒ ServiceClient[I, O], maxTries: Int = scala.Int.MaxValue, initialClients: Seq[InetSocketAddress] = immutable.this.Nil)

Type Members

  1. case class Send(request: I, promise: Promise[O]) extends Product with Serializable

Value Members

  1. final def !=(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef
  2. final def !=(arg0: Any): Boolean

    Definition Classes
    Any
  3. final def ##(): Int

    Definition Classes
    AnyRef → Any
  4. final def ==(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef
  5. final def ==(arg0: Any): Boolean

    Definition Classes
    Any
  6. def addClient(address: InetSocketAddress): ServiceClient[I, O]

  7. final def asInstanceOf[T0]: T0

    Definition Classes
    Any
  8. def binding: Option[WorkerItemBinding]

    When bound to a worker, this contains the [WorkerItemBinding]

    When bound to a worker, this contains the [WorkerItemBinding]

    Definition Classes
    WorkerItem
  9. def boundWorker: Option[WorkerRef]

    Definition Classes
    WorkerItem
  10. def clone(): AnyRef

    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  11. def currentClients: List[ServiceClient[I, O]]

  12. final def eq(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef
  13. def equals(arg0: Any): Boolean

    Definition Classes
    AnyRef → Any
  14. def finalize(): Unit

    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )
  15. final def getClass(): Class[_]

    Definition Classes
    AnyRef → Any
  16. def hashCode(): Int

    Definition Classes
    AnyRef → Any
  17. def id: Option[Long]

    Definition Classes
    WorkerItem
  18. def isBound: Boolean

    Definition Classes
    WorkerItem
  19. final def isInstanceOf[T0]: Boolean

    Definition Classes
    Any
  20. final def ne(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef
  21. final def notify(): Unit

    Definition Classes
    AnyRef
  22. final def notifyAll(): Unit

    Definition Classes
    AnyRef
  23. def onBind(): Unit

    Called when the item is bound to a worker.

    Called when the item is bound to a worker.

    Attributes
    protected
    Definition Classes
    WorkerItem
  24. def onUnbind(): Unit

    Called when the item has been unbound from a worker

    Called when the item has been unbound from a worker

    Attributes
    protected
    Definition Classes
    WorkerItem
  25. def receivedMessage(message: Any, sender: ActorRef): Unit

    Provides a way to send this WorkerItem a message from an Actor by way of WorkerCommand.

    Provides a way to send this WorkerItem a message from an Actor by way of WorkerCommand.Message.

    message

    The message that was sent

    sender

    The sender who sent the message

    Definition Classes
    LoadBalancingClientWorkerItem
  26. def removeClient(address: InetSocketAddress): Unit

  27. def removeClient(client: ServiceClient[I, O]): Unit

  28. def send(request: I): Callback[O]

    Definition Classes
    LoadBalancingClientClientLike
  29. def shared(implicit ex: ExecutionContext): SharedClient[I, O]

    Returns a shared version of the client that can be used across threads, inside futures, etc.

    Returns a shared version of the client that can be used across threads, inside futures, etc.

    TODO: There is probably room to generalize some of this plumbing

  30. final def synchronized[T0](arg0: ⇒ T0): T0

    Definition Classes
    AnyRef
  31. def toString(): String

    Definition Classes
    AnyRef → Any
  32. def update(addresses: Seq[InetSocketAddress]): Unit

    Updates the client list, creating connections for new addresses not in the existing list and closing connections not in the new list

  33. final def wait(): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  34. final def wait(arg0: Long, arg1: Int): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  35. final def wait(arg0: Long): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

Inherited from WorkerItem

Inherited from LocalClient[I, O]

Inherited from ClientLike[I, O, Callback]

Inherited from AnyRef

Inherited from Any

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