org.apache.hadoop.metrics2.lib

Class MutableRangeHistogram

java.lang.Object

org.apache.hadoop.metrics2.lib.MutableMetric

org.apache.hadoop.metrics2.lib.MutableHistogram

org.apache.hadoop.metrics2.lib.MutableRangeHistogram

All Implemented Interfaces:

MetricHistogram

Direct Known Subclasses:

MutableSizeHistogram, MutableTimeHistogram

@InterfaceAudience.Private
public abstract class MutableRangeHistogram
extends MutableHistogram

Extended histogram implementation with metric range counters.

Field Summary

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

desc, name

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

MAX_METRIC_NAME, MEAN_METRIC_NAME, MEDIAN_METRIC_NAME, MIN_METRIC_NAME, NINETY_FIFTH_PERCENTILE_METRIC_NAME, NINETY_NINETH_PERCENTILE_METRIC_NAME, NUM_OPS_METRIC_NAME, SEVENTY_FIFTH_PERCENTILE_METRIC_NAME

Constructor Summary

Constructors

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

Method Summary

Methods

Modifier and Type	Method and Description
void	add(long val) Add a single value to a histogram's stream of values.
abstract long[]	getRange() Returns the ranges to be counted
abstract String	getRangeType() Returns the type of range histogram size or time
abstract AtomicLongArray	getRangeVals() Returns the range counts
void	snapshot(org.apache.hadoop.metrics2.MetricsRecordBuilder metricsRecordBuilder, boolean all)
void	updateSnapshotRangeMetrics(org.apache.hadoop.metrics2.MetricsRecordBuilder metricsRecordBuilder)

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

getMax, getMean, getMin, 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

Constructor Detail

MutableRangeHistogram

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

MutableRangeHistogram

public MutableRangeHistogram(String name,
                     String description)

Method Detail

getRangeType

public abstract String getRangeType()

Returns the type of range histogram size or time

getRange

public abstract long[] getRange()

Returns the ranges to be counted

getRangeVals

public abstract AtomicLongArray getRangeVals()

Returns the range counts

add

public void add(long val)

Description copied from interface: MetricHistogram

Add a single value to a histogram's stream of values.

Specified by:

add in interface MetricHistogram

Overrides:

add in class MutableHistogram

snapshot

public void snapshot(org.apache.hadoop.metrics2.MetricsRecordBuilder metricsRecordBuilder,
            boolean all)

Overrides:

snapshot in class MutableHistogram

updateSnapshotRangeMetrics

public void updateSnapshotRangeMetrics(org.apache.hadoop.metrics2.MetricsRecordBuilder metricsRecordBuilder)