akka.cluster.metrics

Class CpuMetricsSelector$

java.lang.Object

akka.cluster.metrics.CapacityMetricsSelector

akka.cluster.metrics.CpuMetricsSelector$

All Implemented Interfaces:

MetricsSelector, java.io.Serializable, scala.Equals, scala.Product

public class CpuMetricsSelector$
extends CapacityMetricsSelector
implements scala.Product, scala.Serializable

MetricsSelector that uses the combined CPU time metrics and stolen CPU time metrics. In modern Linux kernels: CpuCombined + CpuStolen + CpuIdle = 1.0 or 100%. Combined CPU is sum of User + Sys + Nice + Wait times, as percentage. Stolen CPU is the amount of CPU taken away from this virtual machine by the hypervisor, as percentage.

Low CPU capacity => small node weight.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
static CpuMetricsSelector$	MODULE$ Static reference to the singleton instance of this Scala object.

Constructor Summary

Constructors

Constructor and Description
CpuMetricsSelector$()

Method Summary

Modifier and Type	Method and Description
scala.collection.immutable.Map<Address,java.lang.Object>	capacity(scala.collection.immutable.Set<NodeMetrics> nodeMetrics) Remaining capacity for each node.
double	factor() How much extra weight to give to the stolen time.
CpuMetricsSelector$	getInstance() Java API: get the singleton instance

Methods inherited from class akka.cluster.metrics.CapacityMetricsSelector

weights, weights

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface scala.Product

$init$, productArity, productElement, productIterator, productPrefix

Methods inherited from interface scala.Equals

canEqual, equals

Field Detail

MODULE$

public static final CpuMetricsSelector$ MODULE$

Static reference to the singleton instance of this Scala object.

Constructor Detail

CpuMetricsSelector$

public CpuMetricsSelector$()

Method Detail

getInstance

public CpuMetricsSelector$ getInstance()

Java API: get the singleton instance

Returns:

(undocumented)

factor

public double factor()

How much extra weight to give to the stolen time.

capacity

public scala.collection.immutable.Map<Address,java.lang.Object> capacity(scala.collection.immutable.Set<NodeMetrics> nodeMetrics)

Description copied from class: CapacityMetricsSelector

Remaining capacity for each node. The value is between 0.0 and 1.0, where 0.0 means no remaining capacity (full utilization) and 1.0 means full remaining capacity (zero utilization).

Specified by:

capacity in class CapacityMetricsSelector

Parameters:

nodeMetrics - (undocumented)

Returns:

(undocumented)