blob: abd0a7d2918bcf6500dfa5c0e2639a24ede495bd [file] [log] [blame]
Pragya Arya324337e2020-02-20 14:35:08 +05301package metrics
2
3import (
4 "bufio"
5 "fmt"
6 "log"
7 "net"
8 "strconv"
9 "strings"
10 "time"
11)
12
13// GraphiteConfig provides a container with configuration parameters for
14// the Graphite exporter
15type GraphiteConfig struct {
16 Addr *net.TCPAddr // Network address to connect to
17 Registry Registry // Registry to be exported
18 FlushInterval time.Duration // Flush interval
19 DurationUnit time.Duration // Time conversion unit for durations
20 Prefix string // Prefix to be prepended to metric names
21 Percentiles []float64 // Percentiles to export from timers and histograms
22}
23
24// Graphite is a blocking exporter function which reports metrics in r
25// to a graphite server located at addr, flushing them every d duration
26// and prepending metric names with prefix.
27func Graphite(r Registry, d time.Duration, prefix string, addr *net.TCPAddr) {
28 GraphiteWithConfig(GraphiteConfig{
29 Addr: addr,
30 Registry: r,
31 FlushInterval: d,
32 DurationUnit: time.Nanosecond,
33 Prefix: prefix,
34 Percentiles: []float64{0.5, 0.75, 0.95, 0.99, 0.999},
35 })
36}
37
38// GraphiteWithConfig is a blocking exporter function just like Graphite,
39// but it takes a GraphiteConfig instead.
40func GraphiteWithConfig(c GraphiteConfig) {
41 log.Printf("WARNING: This go-metrics client has been DEPRECATED! It has been moved to https://github.com/cyberdelia/go-metrics-graphite and will be removed from rcrowley/go-metrics on August 12th 2015")
42 for _ = range time.Tick(c.FlushInterval) {
43 if err := graphite(&c); nil != err {
44 log.Println(err)
45 }
46 }
47}
48
49// GraphiteOnce performs a single submission to Graphite, returning a
50// non-nil error on failed connections. This can be used in a loop
51// similar to GraphiteWithConfig for custom error handling.
52func GraphiteOnce(c GraphiteConfig) error {
53 log.Printf("WARNING: This go-metrics client has been DEPRECATED! It has been moved to https://github.com/cyberdelia/go-metrics-graphite and will be removed from rcrowley/go-metrics on August 12th 2015")
54 return graphite(&c)
55}
56
57func graphite(c *GraphiteConfig) error {
58 now := time.Now().Unix()
59 du := float64(c.DurationUnit)
60 conn, err := net.DialTCP("tcp", nil, c.Addr)
61 if nil != err {
62 return err
63 }
64 defer conn.Close()
65 w := bufio.NewWriter(conn)
66 c.Registry.Each(func(name string, i interface{}) {
67 switch metric := i.(type) {
68 case Counter:
69 fmt.Fprintf(w, "%s.%s.count %d %d\n", c.Prefix, name, metric.Count(), now)
70 case Gauge:
71 fmt.Fprintf(w, "%s.%s.value %d %d\n", c.Prefix, name, metric.Value(), now)
72 case GaugeFloat64:
73 fmt.Fprintf(w, "%s.%s.value %f %d\n", c.Prefix, name, metric.Value(), now)
74 case Histogram:
75 h := metric.Snapshot()
76 ps := h.Percentiles(c.Percentiles)
77 fmt.Fprintf(w, "%s.%s.count %d %d\n", c.Prefix, name, h.Count(), now)
78 fmt.Fprintf(w, "%s.%s.min %d %d\n", c.Prefix, name, h.Min(), now)
79 fmt.Fprintf(w, "%s.%s.max %d %d\n", c.Prefix, name, h.Max(), now)
80 fmt.Fprintf(w, "%s.%s.mean %.2f %d\n", c.Prefix, name, h.Mean(), now)
81 fmt.Fprintf(w, "%s.%s.std-dev %.2f %d\n", c.Prefix, name, h.StdDev(), now)
82 for psIdx, psKey := range c.Percentiles {
83 key := strings.Replace(strconv.FormatFloat(psKey*100.0, 'f', -1, 64), ".", "", 1)
84 fmt.Fprintf(w, "%s.%s.%s-percentile %.2f %d\n", c.Prefix, name, key, ps[psIdx], now)
85 }
86 case Meter:
87 m := metric.Snapshot()
88 fmt.Fprintf(w, "%s.%s.count %d %d\n", c.Prefix, name, m.Count(), now)
89 fmt.Fprintf(w, "%s.%s.one-minute %.2f %d\n", c.Prefix, name, m.Rate1(), now)
90 fmt.Fprintf(w, "%s.%s.five-minute %.2f %d\n", c.Prefix, name, m.Rate5(), now)
91 fmt.Fprintf(w, "%s.%s.fifteen-minute %.2f %d\n", c.Prefix, name, m.Rate15(), now)
92 fmt.Fprintf(w, "%s.%s.mean %.2f %d\n", c.Prefix, name, m.RateMean(), now)
93 case Timer:
94 t := metric.Snapshot()
95 ps := t.Percentiles(c.Percentiles)
96 fmt.Fprintf(w, "%s.%s.count %d %d\n", c.Prefix, name, t.Count(), now)
97 fmt.Fprintf(w, "%s.%s.min %d %d\n", c.Prefix, name, t.Min()/int64(du), now)
98 fmt.Fprintf(w, "%s.%s.max %d %d\n", c.Prefix, name, t.Max()/int64(du), now)
99 fmt.Fprintf(w, "%s.%s.mean %.2f %d\n", c.Prefix, name, t.Mean()/du, now)
100 fmt.Fprintf(w, "%s.%s.std-dev %.2f %d\n", c.Prefix, name, t.StdDev()/du, now)
101 for psIdx, psKey := range c.Percentiles {
102 key := strings.Replace(strconv.FormatFloat(psKey*100.0, 'f', -1, 64), ".", "", 1)
103 fmt.Fprintf(w, "%s.%s.%s-percentile %.2f %d\n", c.Prefix, name, key, ps[psIdx], now)
104 }
105 fmt.Fprintf(w, "%s.%s.one-minute %.2f %d\n", c.Prefix, name, t.Rate1(), now)
106 fmt.Fprintf(w, "%s.%s.five-minute %.2f %d\n", c.Prefix, name, t.Rate5(), now)
107 fmt.Fprintf(w, "%s.%s.fifteen-minute %.2f %d\n", c.Prefix, name, t.Rate15(), now)
108 fmt.Fprintf(w, "%s.%s.mean-rate %.2f %d\n", c.Prefix, name, t.RateMean(), now)
109 }
110 w.Flush()
111 })
112 return nil
113}