forked from TrueCloudLab/distribution
104 lines
2.2 KiB
Markdown
104 lines
2.2 KiB
Markdown
go-metrics
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==========
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Go port of Coda Hale's Metrics library: <https://github.com/codahale/metrics>.
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Documentation: <http://godoc.org/github.com/rcrowley/go-metrics>.
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Usage
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-----
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Create and update metrics:
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```go
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c := metrics.NewCounter()
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metrics.Register("foo", c)
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c.Inc(47)
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g := metrics.NewGauge()
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metrics.Register("bar", g)
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g.Update(47)
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s := metrics.NewExpDecaySample(1028, 0.015) // or metrics.NewUniformSample(1028)
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h := metrics.NewHistogram(s)
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metrics.Register("baz", h)
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h.Update(47)
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m := metrics.NewMeter()
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metrics.Register("quux", m)
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m.Mark(47)
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t := metrics.NewTimer()
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metrics.Register("bang", t)
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t.Time(func() {})
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t.Update(47)
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```
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Periodically log every metric in human-readable form to standard error:
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```go
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go metrics.Log(metrics.DefaultRegistry, 60e9, log.New(os.Stderr, "metrics: ", log.Lmicroseconds))
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```
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Periodically log every metric in slightly-more-parseable form to syslog:
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```go
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w, _ := syslog.Dial("unixgram", "/dev/log", syslog.LOG_INFO, "metrics")
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go metrics.Syslog(metrics.DefaultRegistry, 60e9, w)
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```
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Periodically emit every metric to Graphite:
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```go
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addr, _ := net.ResolveTCPAddr("tcp", "127.0.0.1:2003")
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go metrics.Graphite(metrics.DefaultRegistry, 10e9, "metrics", addr)
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```
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Periodically emit every metric into InfluxDB:
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```go
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import "github.com/rcrowley/go-metrics/influxdb"
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go influxdb.Influxdb(metrics.DefaultRegistry, 10e9, &influxdb.Config{
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Host: "127.0.0.1:8086",
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Database: "metrics",
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Username: "test",
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Password: "test",
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})
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```
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Periodically upload every metric to Librato:
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```go
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import "github.com/rcrowley/go-metrics/librato"
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go librato.Librato(metrics.DefaultRegistry,
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10e9, // interval
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"example@example.com", // account owner email address
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"token", // Librato API token
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"hostname", // source
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[]float64{0.95}, // precentiles to send
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time.Millisecond, // time unit
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)
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```
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Periodically emit every metric to StatHat:
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```go
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import "github.com/rcrowley/go-metrics/stathat"
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go stathat.Stathat(metrics.DefaultRegistry, 10e9, "example@example.com")
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```
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Installation
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------------
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```sh
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go get github.com/rcrowley/go-metrics
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```
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StatHat support additionally requires their Go client:
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```sh
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go get github.com/stathat/go
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```
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