org.apache.hadoop.metrics.jvm
Class JvmMetrics

java.lang.Object
  org.apache.hadoop.metrics.jvm.JvmMetrics

All Implemented Interfaces:

Updater

public class JvmMetrics
extends java.lang.Object
implements Updater

Singleton class which reports Java Virtual Machine metrics to the metrics API. Any application can create an instance of this class in order to emit Java VM metrics.

Method Summary

void	doUpdates(MetricsContext context) This will be called periodically (with the period being configuration dependent).
static JvmMetrics	init(java.lang.String processName, java.lang.String sessionId)
static JvmMetrics	init(java.lang.String processName, java.lang.String sessionId, java.lang.String recordName)

Methods inherited from class java.lang.Object

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

Method Detail

init

public static JvmMetrics init(java.lang.String processName,
                              java.lang.String sessionId)

init

public static JvmMetrics init(java.lang.String processName,
                              java.lang.String sessionId,
                              java.lang.String recordName)

doUpdates

public void doUpdates(MetricsContext context)

This will be called periodically (with the period being configuration dependent).

Specified by:

doUpdates in interface Updater