monitor

Documentation

Overview

Package monitor provides an embedded HTTP server to expose metrics for monitoring

Index

• type Histogram
  • func NewHistogram(name string, numBuckets int, growth float64, smallest float64, minValue int64) *Histogram
  • func (h *Histogram) String() string
  • func (h *Histogram) UpdateLatencyValues(t0, t1 time.Time)
• type Server
  • func NewServer(address string) Server
• type Uint
  • func (v *Uint) Add(delta uint64)
  • func (v *Uint) Get() uint64
  • func (v *Uint) Set(value uint64)
  • func (v *Uint) String() string

Types

type Histogram

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

Histogram contains the data needed to properly export itself to expvar and provide a pretty printed version

func NewHistogram

func NewHistogram(name string, numBuckets int, growth float64, smallest float64,
	minValue int64) *Histogram

NewHistogram creates a new histogram and registers an HTTP handler for it. "name" must end with "Histogram", so that the "/debug/latency" handler can pretty print it.

func (*Histogram) String

func (h *Histogram) String() string

func (*Histogram) UpdateLatencyValues

func (h *Histogram) UpdateLatencyValues(t0, t1 time.Time)

UpdateLatencyValues updates the stats.Histogram's buckets with the new datapoint and updates the string associated with the expvar.String

type Server

type Server interface {
	Run()
}

Server represents a monitoring server

func NewServer

func NewServer(address string) Server

NewServer creates a new server struct

type Uint

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

Uint is a 64-bit unsigned integer variable that satisfies the Var interface.

func (*Uint) Add

func (v *Uint) Add(delta uint64)

Add delta

func (*Uint) Get

func (v *Uint) Get() uint64

Get the uint64 stored in the Uint

func (*Uint) Set

func (v *Uint) Set(value uint64)

Set value

func (*Uint) String

func (v *Uint) String() string