akka.cluster.metrics

Class CpuMetricsSelector

java.lang.Object

akka.cluster.metrics.CpuMetricsSelector

public class CpuMetricsSelector
extends java.lang.Object

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.

Constructor Summary

Constructors

Constructor and Description
CpuMetricsSelector()

Method Summary

Modifier and Type	Method and Description
abstract static boolean	canEqual(java.lang.Object that)
static scala.collection.immutable.Map<Address,java.lang.Object>	capacity(scala.collection.immutable.Set<NodeMetrics> nodeMetrics)
abstract static boolean	equals(java.lang.Object that)
static double	factor() How much extra weight to give to the stolen time.
static CpuMetricsSelector$	getInstance() Java API: get the singleton instance
abstract static int	productArity()
abstract static java.lang.Object	productElement(int n)
static scala.collection.Iterator<java.lang.Object>	productIterator()
static java.lang.String	productPrefix()
static scala.collection.immutable.Map<Address,java.lang.Object>	weights(scala.collection.immutable.Map<Address,java.lang.Object> capacity)
static scala.collection.immutable.Map<Address,java.lang.Object>	weights(scala.collection.immutable.Set<NodeMetrics> nodeMetrics)

Methods inherited from class java.lang.Object

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

Constructor Detail

CpuMetricsSelector

public CpuMetricsSelector()

Method Detail

getInstance

public static CpuMetricsSelector$ getInstance()

Java API: get the singleton instance

Returns:

(undocumented)

factor

public static double factor()

How much extra weight to give to the stolen time.

capacity

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

weights

public static scala.collection.immutable.Map<Address,java.lang.Object> weights(scala.collection.immutable.Map<Address,java.lang.Object> capacity)

weights

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

canEqual

public abstract static boolean canEqual(java.lang.Object that)

equals

public abstract static boolean equals(java.lang.Object that)

productElement

public abstract static java.lang.Object productElement(int n)

productArity

public abstract static int productArity()

productIterator

public static scala.collection.Iterator<java.lang.Object> productIterator()

productPrefix

public static java.lang.String productPrefix()