org.apache.hadoop.hdfs.server.namenode.startupprogress

Class StartupProgressMetrics

java.lang.Object

org.apache.hadoop.hdfs.server.namenode.startupprogress.StartupProgressMetrics

All Implemented Interfaces:

MetricsSource

@InterfaceAudience.Private
public class StartupProgressMetrics
extends Object
implements MetricsSource

Links StartupProgress to a MetricsSource to expose its information via JMX.

Constructor Summary

Constructors

Constructor and Description
StartupProgressMetrics(StartupProgress startupProgress) Creates a new StartupProgressMetrics registered with the metrics system.

Method Summary

Methods

Modifier and Type	Method and Description
void	getMetrics(MetricsCollector collector, boolean all) Get metrics from the source
static void	register(StartupProgress prog) Registers StartupProgressMetrics linked to the given StartupProgress.

Methods inherited from class java.lang.Object

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

Constructor Detail

StartupProgressMetrics

public StartupProgressMetrics(StartupProgress startupProgress)

Creates a new StartupProgressMetrics registered with the metrics system.

Parameters:

startupProgress - StartupProgress to link

Method Detail

register

public static void register(StartupProgress prog)

Registers StartupProgressMetrics linked to the given StartupProgress.

Parameters:

prog - StartupProgress to link

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.