Class/Object

akka.cluster.metrics

ClusterMetricsExtension

Related Docs: object ClusterMetricsExtension | package metrics

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class ClusterMetricsExtension extends Extension

Cluster metrics extension.

Cluster metrics is primarily for load-balancing of nodes. It controls metrics sampling at a regular frequency, prepares highly variable data for further analysis by other entities, and publishes the latest cluster metrics data around the node ring and local eventStream to assist in determining the need to redirect traffic to the least-loaded nodes.

Metrics sampling is delegated to the MetricsCollector.

Smoothing of the data for each monitored process is delegated to the EWMA for exponential weighted moving average.

Source
ClusterMetricsExtension.scala
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Extension, AnyRef, Any
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  1. ClusterMetricsExtension
  2. Extension
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  1. by any2stringadd
  2. by StringFormat
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Instance Constructors

  1. new ClusterMetricsExtension(system: ExtendedActorSystem)

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Value Members

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

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    Definition Classes
    AnyRef → Any

  2. final def ##(): Int

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    AnyRef → Any

  3. def +(other: String): String

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    Implicit information
    This member is added by an implicit conversion from ClusterMetricsExtension to any2stringadd[ClusterMetricsExtension] performed by method any2stringadd in scala.Predef.
    Definition Classes
    any2stringadd

  4. def ->[B](y: B): (ClusterMetricsExtension, B)

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    Implicit information
    This member is added by an implicit conversion from ClusterMetricsExtension to ArrowAssoc[ClusterMetricsExtension] performed by method ArrowAssoc in scala.Predef.
    Definition Classes
    ArrowAssoc
    Annotations
    @inline()

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

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    Definition Classes
    AnyRef → Any

  6. final def asInstanceOf[T0]: T0

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    Any

  7. def clone(): AnyRef

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

  8. def ensuring(cond: (ClusterMetricsExtension) ⇒ Boolean, msg: ⇒ Any): ClusterMetricsExtension

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    Implicit information
    This member is added by an implicit conversion from ClusterMetricsExtension to Ensuring[ClusterMetricsExtension] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring

  9. def ensuring(cond: (ClusterMetricsExtension) ⇒ Boolean): ClusterMetricsExtension

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    Implicit information
    This member is added by an implicit conversion from ClusterMetricsExtension to Ensuring[ClusterMetricsExtension] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring

  10. def ensuring(cond: Boolean, msg: ⇒ Any): ClusterMetricsExtension

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    Implicit information
    This member is added by an implicit conversion from ClusterMetricsExtension to Ensuring[ClusterMetricsExtension] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring

  11. def ensuring(cond: Boolean): ClusterMetricsExtension

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    Implicit information
    This member is added by an implicit conversion from ClusterMetricsExtension to Ensuring[ClusterMetricsExtension] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring

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

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    AnyRef

  13. def equals(arg0: Any): Boolean

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  14. def finalize(): Unit

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    protected[java.lang]
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    AnyRef
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    @throws( classOf[java.lang.Throwable] )

  15. def formatted(fmtstr: String): String

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    Implicit information
    This member is added by an implicit conversion from ClusterMetricsExtension to StringFormat[ClusterMetricsExtension] performed by method StringFormat in scala.Predef.
    Definition Classes
    StringFormat
    Annotations
    @inline()

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

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  17. def hashCode(): Int

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  18. final def isInstanceOf[T0]: Boolean

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    Any

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

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  20. final def notify(): Unit

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    Definition Classes
    AnyRef

  21. final def notifyAll(): Unit

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    Definition Classes
    AnyRef

  22. val settings: ClusterMetricsSettings

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    Metrics extension configuration.

  23. def subscribe(metricsListener: ActorRef): Unit

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    Subscribe user metrics listener actor unto ClusterMetricsEvent events published by extension on the system event bus.

  24. val supervisor: ActorRef

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    Supervisor actor.

    Supervisor actor. Accepts subtypes of CollectionControlMessages to manage metrics collection at runtime.

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

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    Definition Classes
    AnyRef

  26. def toString(): String

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    Definition Classes
    AnyRef → Any

  27. def unsubscribe(metricsListenter: ActorRef): Unit

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    Unsubscribe user metrics listener actor from ClusterMetricsEvent events published by extension on the system event bus.

  28. final def wait(): Unit

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    @throws( ... )

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

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    @throws( ... )

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

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    Definition Classes
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    @throws( ... )

  31. def →[B](y: B): (ClusterMetricsExtension, B)

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    Implicit information
    This member is added by an implicit conversion from ClusterMetricsExtension to ArrowAssoc[ClusterMetricsExtension] performed by method ArrowAssoc in scala.Predef.
    Definition Classes
    ArrowAssoc

Inherited from Extension

Inherited from AnyRef

Inherited from Any

Inherited by implicit conversion any2stringadd from ClusterMetricsExtension to any2stringadd[ClusterMetricsExtension]

Inherited by implicit conversion StringFormat from ClusterMetricsExtension to StringFormat[ClusterMetricsExtension]

Inherited by implicit conversion Ensuring from ClusterMetricsExtension to Ensuring[ClusterMetricsExtension]

Inherited by implicit conversion ArrowAssoc from ClusterMetricsExtension to ArrowAssoc[ClusterMetricsExtension]

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