metrics

package
v0.0.0-...-1f8a15b Latest Latest
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 Go to latest Published: Dec 12, 2023 License: Apache-2.0 Imports: 11 Imported by: 0

Documentation

Index

Constants

This section is empty.

Variables

View Source 
var EnabledExpensive = false

Functions

func Setup 

func Setup(address string, logger log.Logger) *http.ServeMux

Setup starts a dedicated metrics server at the given address. This function enables metrics reporting separate from pprof.

Types

type Counter 

type Counter interface {
	prometheus.Counter
	ValueGetter
	AddInt(v int)
	AddUint64(v uint64)
}

func GetOrCreateCounter 

func GetOrCreateCounter(name string) Counter

GetOrCreateCounter returns registered counter with the given name or creates new counter if the registry doesn't contain counter with the given name.

name must be valid Prometheus-compatible metric with possible labels. For instance,

  • foo
  • foo{bar="baz"}
  • foo{bar="baz",aaa="b"}

The returned counter is safe to use from concurrent goroutines.

Performance tip: prefer NewCounter instead of GetOrCreateCounter.

func NewCounter 

func NewCounter(name string) Counter

NewCounter registers and returns new counter with the given name.

name must be valid Prometheus-compatible metric with possible labels. For instance,

  • foo
  • foo{bar="baz"}
  • foo{bar="baz",aaa="b"}

The returned counter is safe to use from concurrent goroutines.

type DurationObserver 

type DurationObserver interface {
	// ObserveDuration observes duration since start time
	ObserveDuration(start time.Time)
}

type Gauge 

type Gauge interface {
	prometheus.Gauge
	ValueGetter
	SetUint32(v uint32)
	SetUint64(v uint64)
	SetInt(v int)
}

func GetOrCreateGauge 

func GetOrCreateGauge(name string) Gauge

GetOrCreateGauge returns registered gauge with the given name or creates new gauge if the registry doesn't contain gauge with the given name.

name must be valid Prometheus-compatible metric with possible labels. For instance,

  • foo
  • foo{bar="baz"}
  • foo{bar="baz",aaa="b"}

The returned gauge is safe to use from concurrent goroutines.

Performance tip: prefer NewGauge instead of GetOrCreateGauge.

func NewGauge 

func NewGauge(name string) Gauge

NewGauge registers and returns gauge with the given name.

name must be valid Prometheus-compatible metric with possible labels. For instance,

  • foo
  • foo{bar="baz"}
  • foo{bar="baz",aaa="b"}

The returned gauge is safe to use from concurrent goroutines.

type HistTimer 

type HistTimer struct {
	Histogram
	// contains filtered or unexported fields
}

func NewHistTimer 

func NewHistTimer(name string) *HistTimer

func (*HistTimer) Child 

func (h *HistTimer) Child(suffix string) *HistTimer

func (*HistTimer) PutSince 

func (h *HistTimer) PutSince()

func (*HistTimer) Tag 

func (h *HistTimer) Tag(pairs ...string) *HistTimer

type Histogram 

type Histogram interface {
	prometheus.Histogram
	DurationObserver
}

func GetOrCreateHistogram 

func GetOrCreateHistogram(name string) Histogram

GetOrCreateHistogram returns registered histogram with the given name or creates new histogram if the registry doesn't contain histogram with the given name.

name must be valid Prometheus-compatible metric with possible labels. For instance,

  • foo
  • foo{bar="baz"}
  • foo{bar="baz",aaa="b"}

The returned histogram is safe to use from concurrent goroutines.

Performance tip: prefer NewHistogram instead of GetOrCreateHistogram.

func NewHistogram 

func NewHistogram(name string) Histogram

NewHistogram creates and returns new histogram with the given name.

name must be valid Prometheus-compatible metric with possible labels. For instance,

  • foo
  • foo{bar="baz"}
  • foo{bar="baz",aaa="b"}

The returned histogram is safe to use from concurrent goroutines.

type Set 

type Set struct {
	// contains filtered or unexported fields
}

Set is a set of metrics.

Metrics belonging to a set are exported separately from global metrics.

Set.WritePrometheus must be called for exporting metrics from the set.

func NewSet 

func NewSet() *Set

NewSet creates new set of metrics.

Pass the set to RegisterSet() function in order to export its metrics via global WritePrometheus() call.

func (*Set) Collect 

func (s *Set) Collect(ch chan<- prometheus.Metric)

func (*Set) Describe 

func (s *Set) Describe(ch chan<- *prometheus.Desc)

func (*Set) GetOrCreateCounter 

func (s *Set) GetOrCreateCounter(name string, help ...string) (prometheus.Counter, error)

GetOrCreateCounter returns registered counter in s with the given name or creates new counter if s doesn't contain counter with the given name.

name must be valid Prometheus-compatible metric with possible labels. For instance,

  • foo
  • foo{bar="baz"}
  • foo{bar="baz",aaa="b"}

The returned counter is safe to use from concurrent goroutines.

Performance tip: prefer NewCounter instead of GetOrCreateCounter.

func (*Set) GetOrCreateGauge 

func (s *Set) GetOrCreateGauge(name string, help ...string) (prometheus.Gauge, error)

GetOrCreateGauge returns registered gauge with the given name in s or creates new gauge if s doesn't contain gauge with the given name.

name must be valid Prometheus-compatible metric with possible labels. For instance,

  • foo
  • foo{bar="baz"}
  • foo{bar="baz",aaa="b"}

The returned gauge is safe to use from concurrent goroutines.

Performance tip: prefer NewGauge instead of GetOrCreateGauge.

func (*Set) GetOrCreateHistogram 

func (s *Set) GetOrCreateHistogram(name string, help ...string) (prometheus.Histogram, error)

GetOrCreateHistogram returns registered histogram in s with the given name or creates new histogram if s doesn't contain histogram with the given name.

name must be valid Prometheus-compatible metric with possible labels. For instance,

  • foo
  • foo{bar="baz"}
  • foo{bar="baz",aaa="b"}

The returned histogram is safe to use from concurrent goroutines.

Performance tip: prefer NewHistogram instead of GetOrCreateHistogram.

func (*Set) GetOrCreateSummary 

func (s *Set) GetOrCreateSummary(name string, help ...string) (prometheus.Summary, error)

GetOrCreateSummary returns registered summary with the given name in s or creates new summary if s doesn't contain summary with the given name.

name must be valid Prometheus-compatible metric with possible labels. For instance,

  • foo
  • foo{bar="baz"}
  • foo{bar="baz",aaa="b"}

The returned summary is safe to use from concurrent goroutines.

Performance tip: prefer NewSummary instead of GetOrCreateSummary.

func (*Set) GetOrCreateSummaryExt 

func (s *Set) GetOrCreateSummaryExt(name string, window time.Duration, quantiles map[float64]float64, help ...string) (prometheus.Summary, error)

GetOrCreateSummaryExt returns registered summary with the given name, window and quantiles in s or creates new summary if s doesn't contain summary with the given name.

name must be valid Prometheus-compatible metric with possible labels. For instance,

  • foo
  • foo{bar="baz"}
  • foo{bar="baz",aaa="b"}

The returned summary is safe to use from concurrent goroutines.

Performance tip: prefer NewSummaryExt instead of GetOrCreateSummaryExt.

func (*Set) ListMetricNames 

func (s *Set) ListMetricNames() []string

ListMetricNames returns sorted list of all the metrics in s.

func (*Set) NewCounter 

func (s *Set) NewCounter(name string, help ...string) (prometheus.Counter, error)

NewCounter registers and returns new counter with the given name in the s.

name must be valid Prometheus-compatible metric with possible labels. For instance,

  • foo
  • foo{bar="baz"}
  • foo{bar="baz",aaa="b"}

The returned counter is safe to use from concurrent goroutines.

func (*Set) NewGauge 

func (s *Set) NewGauge(name string, help ...string) (prometheus.Gauge, error)

NewGauge registers and returns gauge with the given name.

name must be valid Prometheus-compatible metric with possible labels. For instance,

  • foo
  • foo{bar="baz"}
  • foo{bar="baz",aaa="b"}

f must be safe for concurrent calls.

The returned gauge is safe to use from concurrent goroutines.

func (*Set) NewHistogram 

func (s *Set) NewHistogram(name string, help ...string) (prometheus.Histogram, error)

NewHistogram creates and returns new histogram in s with the given name.

name must be valid Prometheus-compatible metric with possible labels. For instance,

  • foo
  • foo{bar="baz"}
  • foo{bar="baz",aaa="b"}

The returned histogram is safe to use from concurrent goroutines.

func (*Set) NewSummary 

func (s *Set) NewSummary(name string, help ...string) (prometheus.Summary, error)

NewSummary creates and returns new summary with the given name in s.

name must be valid Prometheus-compatible metric with possible labels. For instance,

  • foo
  • foo{bar="baz"}
  • foo{bar="baz",aaa="b"}

The returned summary is safe to use from concurrent goroutines.

func (*Set) NewSummaryExt 

func (s *Set) NewSummaryExt(name string, window time.Duration, quantiles map[float64]float64, help ...string) (prometheus.Summary, error)

NewSummaryExt creates and returns new summary in s with the given name, window and quantiles.

name must be valid Prometheus-compatible metric with possible labels. For instance,

  • foo
  • foo{bar="baz"}
  • foo{bar="baz",aaa="b"}

The returned summary is safe to use from concurrent goroutines.

func (*Set) UnregisterAllMetrics 

func (s *Set) UnregisterAllMetrics()

UnregisterAllMetrics de-registers all metrics registered in s.

func (*Set) UnregisterMetric 

func (s *Set) UnregisterMetric(name string) bool

UnregisterMetric removes metric with the given name from s.

True is returned if the metric has been removed. False is returned if the given metric is missing in s.

type Summary 

type Summary interface {
	prometheus.Summary
	DurationObserver
}

func GetOrCreateSummary 

func GetOrCreateSummary(name string) Summary

GetOrCreateSummary returns registered summary with the given name or creates new summary if the registry doesn't contain summary with the given name.

name must be valid Prometheus-compatible metric with possible labels. For instance,

  • foo
  • foo{bar="baz"}
  • foo{bar="baz",aaa="b"}

The returned summary is safe to use from concurrent goroutines.

Performance tip: prefer NewSummary instead of GetOrCreateSummary.

func NewSummary 

func NewSummary(name string) Summary

NewSummary creates and returns new summary with the given name.

name must be valid Prometheus-compatible metric with possible labels. For instance,

  • foo
  • foo{bar="baz"}
  • foo{bar="baz",aaa="b"}

The returned summary is safe to use from concurrent goroutines.

type ValueGetter 

type ValueGetter interface {
	GetValue() float64
	GetValueUint64() uint64
}

Source Files

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