org.apache.hadoop.metrics2
Interfaces 
MetricsCollector
MetricsInfo
MetricsPlugin
MetricsRecord
MetricsSink
MetricsSource
MetricsSystem.Callback
MetricsSystemMXBean
MetricsVisitor
Classes 
AbstractMetric
MetricsFilter
MetricsRecordBuilder
MetricsSystem
MetricsSystem.AbstractCallback
MetricsTag
Enums 
MetricType
Exceptions 
MetricsException