org.apache.hadoop.metrics2

Interface MetricsRecord

@InterfaceAudience.Public
 @InterfaceStability.Evolving
public interface MetricsRecord

An immutable snapshot of metrics with a timestamp

Method Summary

Modifier and Type	Method and Description
String	context()
String	description()
Iterable<AbstractMetric>	metrics() Get the metrics of the record
String	name()
Collection<MetricsTag>	tags() Get the tags of the record Note: returning a collection instead of iterable as we need to use tags as keys (hence Collection#hashCode etc.) in maps
long	timestamp() Get the timestamp of the metrics

Method Detail

timestamp

long timestamp()

Get the timestamp of the metrics

Returns:

the timestamp

name

String name()

Returns:

the metrics record name

description

String description()

Returns:

the description of the metrics record

context

String context()

Returns:

the context name of the metrics record

tags

Collection<MetricsTag> tags()

Get the tags of the record Note: returning a collection instead of iterable as we need to use tags as keys (hence Collection#hashCode etc.) in maps

Returns:

an unmodifiable collection of tags

metrics

Iterable<AbstractMetric> metrics()

Get the metrics of the record

Returns:

an immutable iterable interface for metrics