Package | Description |
---|---|
org.apache.hadoop.metrics2.lib |
A collection of library classes for implementing metrics sources
|
Modifier and Type | Class and Description |
---|---|
class |
MutableCounter
The mutable counter (monotonically increasing) metric interface
|
class |
MutableCounterInt
A mutable int counter for implementing metrics sources
|
class |
MutableCounterLong
A mutable long counter
|
class |
MutableGauge
The mutable gauge metric interface
|
class |
MutableGaugeInt
A mutable int gauge
|
class |
MutableGaugeLong
A mutable long gauge
|
class |
MutableQuantiles
Watches a stream of long values, maintaining online estimates of specific
quantiles with provably low error bounds.
|
class |
MutableRate
A convenient mutable metric for throughput measurement
|
class |
MutableRates
Helper class to manage a group of mutable rate metrics
This class synchronizes all accesses to the metrics it
contains, so it should not be used in situations where
there is high contention on the metrics.
|
class |
MutableRatesWithAggregation
Helper class to manage a group of mutable rate metrics.
|
class |
MutableStat
A mutable metric with stats.
|
Modifier and Type | Method and Description |
---|---|
MutableMetric |
MetricsRegistry.get(String name)
Get a metric by name
|
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