Class/Object

com.github.trex_paxos

BaseDriver

Related Docs: object BaseDriver | package trex_paxos

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abstract class BaseDriver extends Actor with ActorLogging

Driver baseclass logic forwards messages to a trex cluster switching nodes until it finds the leader. The driver coverts the application command value into a byte array ready to journal on the server.

FIXME we retry on timeout yet we don't know if the command happened on a timeout and whether it is safe to retry we should have a map of what client messages types are known safe to retry (e.g. read-only) and only retry those.

Linear Supertypes
ActorLogging, Actor, AnyRef, Any
Known Subclasses
DynamicClusterDriver
Ordering
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Inherited
  1. BaseDriver
  2. ActorLogging
  3. Actor
  4. AnyRef
  5. Any
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Visibility
  1. Public
  2. All

Instance Constructors

  1. new BaseDriver(requestTimeout: Timeout, maxAttempts: Int)

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    requestTimeout

    Timeout on individual requests.

    maxAttempts

    The maximum number of timeout retry attempts on any message.

Type Members

  1. type Receive = PartialFunction[Any, Unit]

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    Definition Classes
    Actor

  2. case class Request(timeoutTime: Long, client: ActorRef, command: CommandValue, attempt: Int) extends Product with Serializable

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Abstract Value Members

  1. abstract def clusterSize: Int

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    Returns the current cluster size.

    Returns the current cluster size.

    Attributes
    protected

  2. abstract def resolveActorSelectorForIndex(memberIndex: Int): Option[ActorSelection]

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    Returns an ActorSelection mapped to the passed cluster membership index.

    Returns an ActorSelection mapped to the passed cluster membership index. This is abstract so that there can be a subclass which knows about cluster membership changes. Counter can be incremented to round-robin to find the new stable leader.

    memberIndex

    The index of the node in the cluster to resolve.

    Attributes
    protected

Concrete Value Members

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

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    Definition Classes
    AnyRef → Any

  2. final def ##(): Int

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    Definition Classes
    AnyRef → Any

  3. final def ==(arg0: Any): Boolean

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    Definition Classes
    AnyRef → Any

  4. def aroundPostRestart(reason: Throwable): Unit

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    Attributes
    protected[akka]
    Definition Classes
    Actor

  5. def aroundPostStop(): Unit

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    Attributes
    protected[akka]
    Definition Classes
    Actor

  6. def aroundPreRestart(reason: Throwable, message: Option[Any]): Unit

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    Attributes
    protected[akka]
    Definition Classes
    Actor

  7. def aroundPreStart(): Unit

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    Attributes
    protected[akka]
    Definition Classes
    Actor

  8. def aroundReceive(receive: akka.actor.Actor.Receive, msg: Any): Unit

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    Attributes
    protected[akka]
    Definition Classes
    Actor

  9. final def asInstanceOf[T0]: T0

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    Definition Classes
    Any

  10. def clone(): AnyRef

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    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

  11. implicit val context: ActorContext

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    Definition Classes
    Actor

  12. def drop(request: Request): Unit

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

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    Definition Classes
    AnyRef

  14. def equals(arg0: Any): Boolean

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    Definition Classes
    AnyRef → Any

  15. def finalize(): Unit

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    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )

  16. final def getClass(): Class[_]

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    Definition Classes
    AnyRef → Any

  17. def getSerializer(clazz: Class[_]): Serializer

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  18. def hashCode(): Int

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    Definition Classes
    AnyRef → Any

  19. def hold(request: Request): Unit

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  20. def incrementAndGetRequestId(): Long

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  21. final def isInstanceOf[T0]: Boolean

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    Definition Classes
    Any

  22. var leaderCounter: Long

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    This counter modulo the cluster size is used to pick a member of the cluster to send leader messages.

    This counter modulo the cluster size is used to pick a member of the cluster to send leader messages. If we get back a response that the node isn't the leader the driver will increment the counter to try the next node.

    Attributes
    protected

  23. def log: LoggingAdapter

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    Definition Classes
    ActorLogging

  24. final def ne(arg0: AnyRef): Boolean

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    Definition Classes
    AnyRef

  25. final def notify(): Unit

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    Definition Classes
    AnyRef

  26. final def notifyAll(): Unit

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    Definition Classes
    AnyRef

  27. def now(): Long

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    override for tests

  28. def postRestart(reason: Throwable): Unit

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    Definition Classes
    Actor
    Annotations
    @throws( classOf[java.lang.Exception] )

  29. def postStop(): Unit

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    Definition Classes
    Actor
    Annotations
    @throws( classOf[java.lang.Exception] )

  30. def preRestart(reason: Throwable, message: Option[Any]): Unit

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    Definition Classes
    Actor
    Annotations
    @throws( classOf[java.lang.Exception] )

  31. def preStart(): Unit

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    Definition Classes
    Actor
    Annotations
    @throws( classOf[java.lang.Exception] )

  32. def receive: Receive

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    Definition Classes
    BaseDriver → Actor

  33. def resend(out: Request): Unit

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  34. implicit final val self: ActorRef

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    Definition Classes
    Actor

  35. final def sender(): ActorRef

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    Definition Classes
    Actor

  36. def supervisorStrategy: SupervisorStrategy

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    Definition Classes
    Actor

  37. def swap(out: Request, in: Request): Unit

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

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    Definition Classes
    AnyRef

  39. val timeoutMillis: Long

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  40. def toString(): String

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    Definition Classes
    AnyRef → Any

  41. def transmit(counter: Long, request: Request): Unit

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    Send a message to the cluster

    Send a message to the cluster

    counter

    A counter which is used to pick a node to transmit to.

    request

    A request to send.

  42. def unhandled(message: Any): Unit

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    Definition Classes
    Actor

  43. final def wait(): Unit

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    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

  44. final def wait(arg0: Long, arg1: Int): Unit

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    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

  45. final def wait(arg0: Long): Unit

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    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

Inherited from ActorLogging

Inherited from Actor

Inherited from AnyRef

Inherited from Any

Ungrouped