org.apache.hadoop.chukwa.datacollection.agent.metrics

Class AgentMetrics

java.lang.Object

org.apache.hadoop.chukwa.datacollection.agent.metrics.AgentMetrics

All Implemented Interfaces:

org.apache.hadoop.metrics.Updater

public class AgentMetrics
extends Object
implements org.apache.hadoop.metrics.Updater

Field Summary

Fields

Modifier and Type	Field and Description
org.apache.hadoop.metrics.util.MetricsIntValue	adaptorCount
org.apache.hadoop.metrics.util.MetricsTimeVaryingInt	addedAdaptor
static AgentMetrics	agentMetrics
org.apache.hadoop.metrics.util.MetricsRegistry	registry
org.apache.hadoop.metrics.util.MetricsTimeVaryingInt	removedAdaptor

Constructor Summary

Constructors

Constructor and Description
AgentMetrics(String processName, String recordName) Creates a new instance of AgentMetrics

Method Summary

Modifier and Type	Method and Description
void	doUpdates(org.apache.hadoop.metrics.MetricsContext unused) Since this object is a registered updater, this method will be called periodically, e.g.
void	shutdown()

Methods inherited from class java.lang.Object

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

Field Detail

agentMetrics

public static final AgentMetrics agentMetrics

registry

public org.apache.hadoop.metrics.util.MetricsRegistry registry

adaptorCount

public org.apache.hadoop.metrics.util.MetricsIntValue adaptorCount

addedAdaptor

public org.apache.hadoop.metrics.util.MetricsTimeVaryingInt addedAdaptor

removedAdaptor

public org.apache.hadoop.metrics.util.MetricsTimeVaryingInt removedAdaptor

Constructor Detail

AgentMetrics

public AgentMetrics(String processName,
                    String recordName)

Creates a new instance of AgentMetrics

Parameters:

processName - is jvm name of agent process

recordName - is mbean record name

Method Detail

doUpdates

public void doUpdates(org.apache.hadoop.metrics.MetricsContext unused)

Since this object is a registered updater, this method will be called periodically, e.g. every 5 seconds.

Specified by:

doUpdates in interface org.apache.hadoop.metrics.Updater

shutdown

public void shutdown()