Package org.apache.hadoop.ozone.container.common.volume

Class VolumeHealthMetrics

java.lang.Object

org.apache.hadoop.ozone.container.common.volume.VolumeHealthMetrics

All Implemented Interfaces:

org.apache.hadoop.metrics2.MetricsSource

@Metrics(about="Ozone Volume Health Metrics",
         context="ozone")
public final class VolumeHealthMetrics
extends Object
implements org.apache.hadoop.metrics2.MetricsSource

This class is used to track Volume Health metrics for all volumes on a datanode.

Method Summary

Modifier and Type	Method	Description
static VolumeHealthMetrics	create(StorageVolume.VolumeType volumeType)	Creates and registers a new VolumeHealthMetrics instance.
void	decrementFailedVolumes()
void	decrementHealthyVolumes()
void	getMetrics(org.apache.hadoop.metrics2.MetricsCollector collector, boolean all)
void	incrementFailedVolumes()
void	incrementHealthyVolumes()
void	unregister()

Methods inherited from class java.lang.Object

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

Method Details

create

public static VolumeHealthMetrics create(StorageVolume.VolumeType volumeType)

Creates and registers a new VolumeHealthMetrics instance.

Parameters:

volumeType - Type of volumes (DATA_VOLUME, META_VOLUME, DB_VOLUME)

Returns:

The registered VolumeHealthMetrics instance

unregister

public void unregister()

incrementHealthyVolumes

public void incrementHealthyVolumes()

incrementFailedVolumes

public void incrementFailedVolumes()

decrementHealthyVolumes

public void decrementHealthyVolumes()

decrementFailedVolumes

public void decrementFailedVolumes()

getMetrics

public void getMetrics(org.apache.hadoop.metrics2.MetricsCollector collector,
 boolean all)

Specified by:

getMetrics in interface org.apache.hadoop.metrics2.MetricsSource