DataNodeVolumeMetrics (Apache Hadoop HDFS 3.4.1.200-dep-1000 API)

java.lang.Object
- org.apache.hadoop.hdfs.server.datanode.fsdataset.DataNodeVolumeMetrics

@Private
@Evolving
@Metrics(name="DataNodeVolume",
         about="DataNode Volume metrics",
         context="dfs")
public class DataNodeVolumeMetrics
extends java.lang.Object

This class is for maintaining Datanode Volume IO related statistics and publishing them through the metrics interfaces.

Constructor Summary

Constructors
Constructor	Description
`DataNodeVolumeMetrics(org.apache.hadoop.metrics2.MetricsSystem metricsSystem, java.lang.String volumeName, int[] intervals)`

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`addDataFileIoLatency(long latency)`
`void`	`addFileIoError(long latency)`
`void`	`addFlushIoLatency(long latency)`
`void`	`addMetadataOperationLatency(long latency)`
`void`	`addNativeCopyIoLatency(long latency)`
`void`	`addReadIoLatency(long latency)`
`void`	`addSyncIoLatency(long latency)`
`void`	`addTransferIoLatency(long latency)`
`void`	`addWriteIoLatency(long latency)`
`static DataNodeVolumeMetrics`	`create(org.apache.hadoop.conf.Configuration conf, java.lang.String volumeName)`
`double`	`getDataFileIoMean()`
`long`	`getDataFileIoSampleCount()`
`double`	`getDataFileIoStdDev()`
`double`	`getFileIoErrorMean()`
`long`	`getFileIoErrorSampleCount()`
`double`	`getFileIoErrorStdDev()`
`double`	`getFlushIoMean()`
`long`	`getFlushIoSampleCount()`
`double`	`getFlushIoStdDev()`
`double`	`getMetadataOperationMean()`
`long`	`getMetadataOperationSampleCount()`
`double`	`getMetadataOperationStdDev()`
`double`	`getNativeCopyIoMean()`
`org.apache.hadoop.metrics2.lib.MutableQuantiles[]`	`getNativeCopyIoQuantiles()`
`long`	`getNativeCopyIoSampleCount()`
`double`	`getNativeCopyIoStdDev()`
`double`	`getReadIoMean()`
`long`	`getReadIoSampleCount()`
`double`	`getReadIoStdDev()`
`double`	`getSyncIoMean()`
`long`	`getSyncIoSampleCount()`
`double`	`getSyncIoStdDev()`
`long`	`getTotalDataFileIos()`
`long`	`getTotalFileIoErrors()`
`long`	`getTotalMetadataOperations()`
`double`	`getTransferIoMean()`
`org.apache.hadoop.metrics2.lib.MutableQuantiles[]`	`getTransferIoQuantiles()`
`long`	`getTransferIoSampleCount()`
`double`	`getTransferIoStdDev()`
`double`	`getWriteIoMean()`
`long`	`getWriteIoSampleCount()`
`double`	`getWriteIoStdDev()`
`java.lang.String`	`name()`
`void`	`unRegister()`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

DataNodeVolumeMetrics

public DataNodeVolumeMetrics(org.apache.hadoop.metrics2.MetricsSystem metricsSystem,
                             java.lang.String volumeName,
                             int[] intervals)

Method Detail

getTotalMetadataOperations

public long getTotalMetadataOperations()

getMetadataOperationSampleCount

public long getMetadataOperationSampleCount()

getMetadataOperationMean

public double getMetadataOperationMean()

getMetadataOperationStdDev

public double getMetadataOperationStdDev()

getTotalDataFileIos
```
public long getTotalDataFileIos()
```

getDataFileIoSampleCount

public long getDataFileIoSampleCount()

getDataFileIoMean
```
public double getDataFileIoMean()
```

getDataFileIoStdDev
```
public double getDataFileIoStdDev()
```

getFlushIoSampleCount
```
public long getFlushIoSampleCount()
```

getFlushIoMean
```
public double getFlushIoMean()
```

getFlushIoStdDev
```
public double getFlushIoStdDev()
```

getSyncIoSampleCount
```
public long getSyncIoSampleCount()
```

getSyncIoMean
```
public double getSyncIoMean()
```

getSyncIoStdDev
```
public double getSyncIoStdDev()
```

getReadIoSampleCount
```
public long getReadIoSampleCount()
```

getReadIoMean
```
public double getReadIoMean()
```

getReadIoStdDev
```
public double getReadIoStdDev()
```

getWriteIoSampleCount
```
public long getWriteIoSampleCount()
```

getWriteIoMean
```
public double getWriteIoMean()
```

getWriteIoStdDev
```
public double getWriteIoStdDev()
```

getTransferIoSampleCount

public long getTransferIoSampleCount()

getTransferIoMean
```
public double getTransferIoMean()
```

getTransferIoStdDev
```
public double getTransferIoStdDev()
```

getTransferIoQuantiles

public org.apache.hadoop.metrics2.lib.MutableQuantiles[] getTransferIoQuantiles()

getNativeCopyIoSampleCount

public long getNativeCopyIoSampleCount()

getNativeCopyIoMean
```
public double getNativeCopyIoMean()
```

getNativeCopyIoStdDev
```
public double getNativeCopyIoStdDev()
```

getNativeCopyIoQuantiles

public org.apache.hadoop.metrics2.lib.MutableQuantiles[] getNativeCopyIoQuantiles()

getTotalFileIoErrors
```
public long getTotalFileIoErrors()
```

getFileIoErrorSampleCount

public long getFileIoErrorSampleCount()

getFileIoErrorMean
```
public double getFileIoErrorMean()
```

getFileIoErrorStdDev
```
public double getFileIoErrorStdDev()
```

create

public static DataNodeVolumeMetrics create(org.apache.hadoop.conf.Configuration conf,
                                           java.lang.String volumeName)

name
```
public java.lang.String name()
```

unRegister
```
public void unRegister()
```

addMetadataOperationLatency

public void addMetadataOperationLatency(long latency)

addDataFileIoLatency

public void addDataFileIoLatency(long latency)

addSyncIoLatency

public void addSyncIoLatency(long latency)

addFlushIoLatency

public void addFlushIoLatency(long latency)

addReadIoLatency

public void addReadIoLatency(long latency)

addWriteIoLatency

public void addWriteIoLatency(long latency)

addTransferIoLatency

public void addTransferIoLatency(long latency)

addNativeCopyIoLatency

public void addNativeCopyIoLatency(long latency)

addFileIoError

public void addFileIoError(long latency)

Class DataNodeVolumeMetrics

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

DataNodeVolumeMetrics

Method Detail

getTotalMetadataOperations

getMetadataOperationSampleCount

getMetadataOperationMean

getMetadataOperationStdDev

getTotalDataFileIos

getDataFileIoSampleCount

getDataFileIoMean

getDataFileIoStdDev

getFlushIoSampleCount

getFlushIoMean

getFlushIoStdDev

getSyncIoSampleCount

getSyncIoMean

getSyncIoStdDev

getReadIoSampleCount

getReadIoMean

getReadIoStdDev

getWriteIoSampleCount

getWriteIoMean

getWriteIoStdDev

getTransferIoSampleCount

getTransferIoMean

getTransferIoStdDev

getTransferIoQuantiles

getNativeCopyIoSampleCount

getNativeCopyIoMean

getNativeCopyIoStdDev

getNativeCopyIoQuantiles

getTotalFileIoErrors

getFileIoErrorSampleCount

getFileIoErrorMean

getFileIoErrorStdDev

create

name

unRegister

addMetadataOperationLatency

addDataFileIoLatency

addSyncIoLatency

addFlushIoLatency

addReadIoLatency

addWriteIoLatency

addTransferIoLatency

addNativeCopyIoLatency

addFileIoError