org.apache.hadoop.metrics2.source

Class JvmMetrics

java.lang.Object

org.apache.hadoop.metrics2.source.JvmMetrics

All Implemented Interfaces:

MetricsSource

@InterfaceAudience.Private
public class JvmMetrics
extends Object
implements MetricsSource

JVM and logging related metrics. Mostly used by various servers as a part of the metrics they export.

Method Summary

Methods

Modifier and Type	Method and Description
static JvmMetrics	create(String processName, String sessionId, MetricsSystem ms)
void	getMetrics(MetricsCollector collector, boolean all) Get metrics from the source
static JvmMetrics	initSingleton(String processName, String sessionId)

Methods inherited from class java.lang.Object

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

Method Detail

create

public static JvmMetrics create(String processName,
                String sessionId,
                MetricsSystem ms)

initSingleton

public static JvmMetrics initSingleton(String processName,
                       String sessionId)

getMetrics

public void getMetrics(MetricsCollector collector,
              boolean all)

Description copied from interface: MetricsSource

Get metrics from the source

Specified by:

getMetrics in interface MetricsSource

Parameters:

collector - to contain the resulting metrics snapshot

all - if true, return all metrics even if unchanged.