Package org.apache.pekko.cluster.metrics

Class StandardMetrics

java.lang.Object

org.apache.pekko.cluster.metrics.StandardMetrics

public class StandardMetrics
extends java.lang.Object

Definitions of the built-in standard metrics.

The following extractors and data structures makes it easy to consume the NodeMetrics in for example load balancers.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	StandardMetrics.Cpu
static class	StandardMetrics.Cpu$
static class	StandardMetrics.HeapMemory
static class	StandardMetrics.HeapMemory$

Constructor Summary

Constructors

Constructor	Description
StandardMetrics()

Method Summary

Modifier and Type	Method	Description
static java.lang.String	CpuCombined()	Sum of User + Sys + Nice + Wait.
static java.lang.String	CpuIdle()	Amount of CPU time left after combined and stolen are removed.
static java.lang.String	CpuStolen()	The amount of CPU 'stolen' from this virtual machine by the hypervisor for other tasks (such as running another virtual machine).
static StandardMetrics.Cpu	extractCpu(NodeMetrics nodeMetrics)
static StandardMetrics.HeapMemory	extractHeapMemory(NodeMetrics nodeMetrics)
static java.lang.String	HeapMemoryCommitted()
static java.lang.String	HeapMemoryMax()
static java.lang.String	HeapMemoryUsed()
static java.lang.String	Processors()
static java.lang.String	SystemLoadAverage()

Methods inherited from class java.lang.Object

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

Constructor Detail

StandardMetrics

public StandardMetrics()

Method Detail

HeapMemoryUsed

public static final java.lang.String HeapMemoryUsed()

HeapMemoryCommitted

public static final java.lang.String HeapMemoryCommitted()

HeapMemoryMax

public static final java.lang.String HeapMemoryMax()

SystemLoadAverage

public static final java.lang.String SystemLoadAverage()

Processors

public static final java.lang.String Processors()

CpuCombined

public static final java.lang.String CpuCombined()

Sum of User + Sys + Nice + Wait. See `org.hyperic.sigar.CpuPerc`

CpuStolen

public static final java.lang.String CpuStolen()

The amount of CPU 'stolen' from this virtual machine by the hypervisor for other tasks (such as running another virtual machine).

CpuIdle

public static final java.lang.String CpuIdle()

Amount of CPU time left after combined and stolen are removed.

extractHeapMemory

public static StandardMetrics.HeapMemory extractHeapMemory(NodeMetrics nodeMetrics)

extractCpu

public static StandardMetrics.Cpu extractCpu(NodeMetrics nodeMetrics)