Package | Description |
---|---|
org.apache.hadoop.metrics2.lib |
A collection of library classes for implementing metrics sources
|
Class and Description |
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DefaultMetricsSystem
The default metrics system singleton.
|
MetricsRegistry
An optional metrics registry class for creating and maintaining a
collection of MetricsMutables, making writing metrics source easier.
|
MutableCounter
The mutable counter (monotonically increasing) metric interface
|
MutableCounterInt
A mutable int counter for implementing metrics sources
|
MutableCounterLong
A mutable long counter
|
MutableGauge
The mutable gauge metric interface
|
MutableGaugeInt
A mutable int gauge
|
MutableGaugeLong
A mutable long gauge
|
MutableMetric
The mutable metric interface
|
MutableQuantiles
Watches a stream of long values, maintaining online estimates of specific
quantiles with provably low error bounds.
|
MutableRate
A convenient mutable metric for throughput measurement
|
MutableRatesWithAggregation
Helper class to manage a group of mutable rate metrics.
|
MutableRollingAverages
This class maintains a group of rolling average metrics.
|
MutableStat
A mutable metric with stats.
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