Package com.linkedin.venice.stats.metrics

Enum MetricType

java.lang.Object

java.lang.Enum<MetricType>

com.linkedin.venice.stats.metrics.MetricType

All Implemented Interfaces:

java.io.Serializable, java.lang.Comparable<MetricType>

public enum MetricType
extends java.lang.Enum<MetricType>

Metric type enum to define the type of metrics Venice supports via OpenTelemetry

Enum Constant Summary

Enum Constants

Enum Constant	Description
COUNTER	For Counter: A simple counter that can be added to.
HISTOGRAM	Use Histogram to get percentiles/min/max/count/sum and other aggregates: can be configured to be exponential or explicit bucket check VeniceMetricsConfig.Builder.extractAndSetOtelConfigs(java.util.Map<java.lang.String, java.lang.String>) for more details
MIN_MAX_COUNT_SUM_AGGREGATIONS	To get min/max/count/sum aggregation without the memory overhead to calculate percentiles, use Otel Explicit bucket Histogram but without buckets .

Method Summary

Modifier and Type	Method	Description
static MetricType	valueOf(java.lang.String name)	Returns the enum constant of this type with the specified name.
static MetricType[]	values()	Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

HISTOGRAM

public static final MetricType HISTOGRAM

Use Histogram to get percentiles/min/max/count/sum and other aggregates: can be configured to be exponential or explicit bucket
check VeniceMetricsConfig.Builder.extractAndSetOtelConfigs(java.util.Map<java.lang.String, java.lang.String>) for more details

MIN_MAX_COUNT_SUM_AGGREGATIONS

public static final MetricType MIN_MAX_COUNT_SUM_AGGREGATIONS

To get min/max/count/sum aggregation without the memory overhead to calculate percentiles, use Otel Explicit bucket Histogram but without buckets . check VeniceOpenTelemetryMetricsRepository.createHistogram(com.linkedin.venice.stats.metrics.MetricEntity) and VeniceOpenTelemetryMetricsRepository.setExponentialHistogramAggregation(io.opentelemetry.sdk.metrics.SdkMeterProviderBuilder, com.linkedin.venice.stats.VeniceMetricsConfig) for more details

COUNTER

public static final MetricType COUNTER

For Counter: A simple counter that can be added to.

Method Detail

values

public static MetricType[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (MetricType c : MetricType.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static MetricType valueOf(java.lang.String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

java.lang.IllegalArgumentException - if this enum type has no constant with the specified name

java.lang.NullPointerException - if the argument is null