Package io.prometheus.metrics.core.exemplars

Class ExemplarSamplerConfig

Object

ExemplarSamplerConfig

public class ExemplarSamplerConfig
extends Object

Field Summary

Fields

Modifier and Type	Field	Description
static final int	DEFAULT_MAX_RETENTION_PERIOD_SECONDS	See ExemplarsProperties.getMaxRetentionPeriodSeconds()
static final int	DEFAULT_MIN_RETENTION_PERIOD_SECONDS	See ExemplarsProperties.getMinRetentionPeriodSeconds()

Constructor Summary

Constructors

Constructor	Description
ExemplarSamplerConfig(ExemplarsProperties properties, double[] histogramClassicUpperBounds)	Constructor for classic histogram metrics.
ExemplarSamplerConfig(ExemplarsProperties properties, int numberOfExemplars)	Constructor for all metric types except classic histograms.

Method Summary

Modifier and Type	Method	Description
double[]	getHistogramClassicUpperBounds()	May be null.
long	getMaxRetentionPeriodMillis()	See ExemplarsProperties.getMaxRetentionPeriodSeconds()
long	getMinRetentionPeriodMillis()	See ExemplarsProperties.getMinRetentionPeriodSeconds()
int	getNumberOfExemplars()	Defaults: Counters have one Exemplar, native histograms and summaries have 4 Exemplars, classic histograms have one Exemplar per bucket.
long	getSampleIntervalMillis()	See ExemplarsProperties.getSampleIntervalMilliseconds()

Methods inherited from class Object

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

Field Details

DEFAULT_MIN_RETENTION_PERIOD_SECONDS

public static final int DEFAULT_MIN_RETENTION_PERIOD_SECONDS

See ExemplarsProperties.getMinRetentionPeriodSeconds()

See Also:

• Constant Field Values

DEFAULT_MAX_RETENTION_PERIOD_SECONDS

public static final int DEFAULT_MAX_RETENTION_PERIOD_SECONDS

See ExemplarsProperties.getMaxRetentionPeriodSeconds()

See Also:

• Constant Field Values

Constructor Details

ExemplarSamplerConfig

public ExemplarSamplerConfig(ExemplarsProperties properties,
 int numberOfExemplars)

Constructor for all metric types except classic histograms.

Parameters:

properties - See PrometheusProperties.getExemplarProperties().

numberOfExemplars - Counters have 1 Exemplar, native histograms and summaries have 4 Exemplars by default. For classic histogram use ExemplarSamplerConfig(ExemplarsProperties, double[]).

ExemplarSamplerConfig

public ExemplarSamplerConfig(ExemplarsProperties properties,
 double[] histogramClassicUpperBounds)

Constructor for classic histogram metrics.

Parameters:

properties - See PrometheusProperties.getExemplarProperties().

histogramClassicUpperBounds - the ExemplarSampler will provide one Exemplar per histogram bucket. Must be sorted, and must include the +Inf bucket.

Method Details

getHistogramClassicUpperBounds

public double[] getHistogramClassicUpperBounds()

May be null.

getMinRetentionPeriodMillis

public long getMinRetentionPeriodMillis()

See ExemplarsProperties.getMinRetentionPeriodSeconds()

getMaxRetentionPeriodMillis

public long getMaxRetentionPeriodMillis()

See ExemplarsProperties.getMaxRetentionPeriodSeconds()

getSampleIntervalMillis

public long getSampleIntervalMillis()

See ExemplarsProperties.getSampleIntervalMilliseconds()

getNumberOfExemplars

public int getNumberOfExemplars()

Defaults: Counters have one Exemplar, native histograms and summaries have 4 Exemplars, classic histograms have one Exemplar per bucket.