Package org.apache.hadoop.metrics2.lib

Class MutableTimeHistogram

java.lang.Object

org.apache.hadoop.metrics2.lib.MutableMetric

org.apache.hadoop.metrics2.lib.MutableHistogram

org.apache.hadoop.metrics2.lib.MutableRangeHistogram

org.apache.hadoop.metrics2.lib.MutableTimeHistogram

All Implemented Interfaces:

MetricHistogram

@Private
public class MutableTimeHistogram
extends MutableRangeHistogram

Extended histogram implementation with counters for metric time ranges.

Field Summary

Fields

Modifier and Type	Field	Description
private static final String	RANGE_TYPE
private static final long[]	RANGES

Fields inherited from class org.apache.hadoop.metrics2.lib.MutableHistogram

desc, histogram, name

Fields inherited from interface org.apache.hadoop.metrics2.MetricHistogram

MAX_METRIC_NAME, MEAN_METRIC_NAME, MEDIAN_METRIC_NAME, MIN_METRIC_NAME, NINETIETH_PERCENTILE_METRIC_NAME, NINETY_EIGHTH_PERCENTILE_METRIC_NAME, NINETY_FIFTH_PERCENTILE_METRIC_NAME, NINETY_NINE_POINT_NINETH_PERCENTILE_METRIC_NAME, NINETY_NINETH_PERCENTILE_METRIC_NAME, NUM_OPS_METRIC_NAME, SEVENTY_FIFTH_PERCENTILE_METRIC_NAME, TWENTY_FIFTH_PERCENTILE_METRIC_NAME

Constructor Summary

Constructors

Constructor	Description
MutableTimeHistogram(String name, String description)
MutableTimeHistogram(org.apache.hadoop.metrics2.MetricsInfo info)

Method Summary

Modifier and Type	Method	Description
long[]	getRanges()	Returns the ranges to be counted
String	getRangeType()	Returns the type of range histogram size or time

Methods inherited from class org.apache.hadoop.metrics2.lib.MutableRangeHistogram

getCount, snapshot, updateSnapshotRangeMetrics

Methods inherited from class org.apache.hadoop.metrics2.lib.MutableHistogram

add, getMax, snapshot, updateSnapshotMetrics

Methods inherited from class org.apache.hadoop.metrics2.lib.MutableMetric

changed, clearChanged, setChanged, snapshot

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.hadoop.metrics2.MetricHistogram

add

Field Details

RANGE_TYPE

private static final String RANGE_TYPE

See Also:

• Constant Field Values

RANGES

private static final long[] RANGES

Constructor Details

MutableTimeHistogram

public MutableTimeHistogram(org.apache.hadoop.metrics2.MetricsInfo info)

MutableTimeHistogram

public MutableTimeHistogram(String name,
 String description)

Method Details

getRangeType

public String getRangeType()

Description copied from class: MutableRangeHistogram

Returns the type of range histogram size or time

Specified by:

getRangeType in class MutableRangeHistogram

getRanges

public long[] getRanges()

Description copied from class: MutableRangeHistogram

Returns the ranges to be counted

Specified by:

getRanges in class MutableRangeHistogram