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

Class VolumeIOStats

java.lang.Object

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

public class VolumeIOStats
extends Object

This class is used to track Volume IO stats for each HDDS Volume.

Constructor Summary

Constructors

Constructor	Description
VolumeIOStats()	Deprecated.
VolumeIOStats(String identifier, String storageDirectory, int[] intervals)

Method Summary

Modifier and Type	Method	Description
String	getMetricsSourceName()
long	getReadBytes()	Returns total number of bytes read from the volume.
long	getReadOpCount()	Returns total number of read operations performed on the volume.
long	getReadTime()	Returns total read operations time on the volume.
String	getStorageDirectory()
long	getWriteBytes()	Returns total number of bytes written to the volume.
long	getWriteOpCount()	Returns total number of write operations performed on the volume.
long	getWriteTime()	Returns total write operations time on the volume.
void	incReadBytes(long bytesRead)	Increment number of bytes read from the volume.
void	incReadOpCount()	Increment the read operations performed on the volume.
void	incReadTime(long time)	Increment the time taken by read operation on the volume.
void	incWriteBytes(long bytesWritten)	Increment number of bytes written on to the volume.
void	incWriteOpCount()	Increment the write operations performed on the volume.
void	incWriteTime(long time)	Increment the time taken by write operation on the volume.
void	init()
void	unregister()

Methods inherited from class java.lang.Object

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

Constructor Details

VolumeIOStats

@Deprecated
public VolumeIOStats()

Deprecated.

VolumeIOStats

public VolumeIOStats(String identifier,
 String storageDirectory,
 int[] intervals)

Parameters:

identifier - Typically, path to volume root. e.g. /data/hdds

Method Details

init

public void init()

unregister

public void unregister()

getMetricsSourceName

public String getMetricsSourceName()

incReadBytes

public void incReadBytes(long bytesRead)

Increment number of bytes read from the volume.

Parameters:

bytesRead -

incReadOpCount

public void incReadOpCount()

Increment the read operations performed on the volume.

incWriteBytes

public void incWriteBytes(long bytesWritten)

Increment number of bytes written on to the volume.

Parameters:

bytesWritten -

incWriteOpCount

public void incWriteOpCount()

Increment the write operations performed on the volume.

incReadTime

public void incReadTime(long time)

Increment the time taken by read operation on the volume.

Parameters:

time -

incWriteTime

public void incWriteTime(long time)

Increment the time taken by write operation on the volume.

Parameters:

time -

getReadBytes

public long getReadBytes()

Returns total number of bytes read from the volume.

Returns:

long

getWriteBytes

public long getWriteBytes()

Returns total number of bytes written to the volume.

Returns:

long

getReadOpCount

public long getReadOpCount()

Returns total number of read operations performed on the volume.

Returns:

long

getWriteOpCount

public long getWriteOpCount()

Returns total number of write operations performed on the volume.

Returns:

long

getReadTime

public long getReadTime()

Returns total read operations time on the volume.

Returns:

long

getWriteTime

public long getWriteTime()

Returns total write operations time on the volume.

Returns:

long

getStorageDirectory

@Metric
public String getStorageDirectory()