예제 #1
0
func TestMetrics20Timer(t *testing.T) {
	d := []byte("foo=bar.target_type=gauge.unit=ms:5|ms\nfoo=bar.target_type=gauge.unit=ms:10|ms")
	packets := udp.ParseMessage(d, prefix_internal, output, udp.ParseLine)

	pct, _ := timers.NewPercentiles("75")
	ti := timers.New("", *pct)

	for _, p := range packets {
		ti.Add(p)
	}

	var buff bytes.Buffer
	num := ti.Process(&buff, time.Now().Unix(), 10)
	assert.Equal(t, int(num), 1)

	dataForGraphite := buff.String()
	assert.T(t, strings.Contains(dataForGraphite, "foo=bar.target_type=gauge.unit=ms.stat=max_75 10.000000"))
	assert.T(t, strings.Contains(dataForGraphite, "foo=bar.target_type=gauge.unit=ms.stat=mean_75 7.500000"))
	assert.T(t, strings.Contains(dataForGraphite, "foo=bar.target_type=gauge.unit=ms.stat=sum_75 15.000000"))
	assert.T(t, strings.Contains(dataForGraphite, "foo=bar.target_type=gauge.unit=ms.stat=mean 7.500000"))
	assert.T(t, strings.Contains(dataForGraphite, "foo=bar.target_type=gauge.unit=ms.stat=median 7.500000"))
	assert.T(t, strings.Contains(dataForGraphite, "foo=bar.target_type=gauge.unit=ms.stat=std 2.500000"))
	assert.T(t, strings.Contains(dataForGraphite, "foo=bar.target_type=gauge.unit=ms.stat=sum 15.000000"))
	assert.T(t, strings.Contains(dataForGraphite, "foo=bar.target_type=gauge.unit=ms.stat=max 10.000000"))
	assert.T(t, strings.Contains(dataForGraphite, "foo=bar.target_type=gauge.unit=ms.stat=min 5.000000"))
	assert.T(t, strings.Contains(dataForGraphite, "foo=bar.target_type=count.unit=Pckt.orig_unit=ms.pckt_type=sent.direction=in 2"))
	assert.T(t, strings.Contains(dataForGraphite, "foo=bar.target_type=rate.unit=Pcktps.orig_unit=ms.pckt_type=sent.direction=in 0.200000"))
}
예제 #2
0
func TestLowerPercentile(t *testing.T) {
	// Some data with expected mean of 20
	d := []byte("time:0|ms\ntime:1|ms\ntime:2|ms\ntime:3|ms")
	packets := udp.ParseMessage(d, prefix_internal, output, udp.ParseLine)

	pct, _ := timers.NewPercentiles("-75")
	ti := timers.New("", *pct)

	for _, p := range packets {
		ti.Add(p)
	}

	var buff bytes.Buffer
	var num int64
	num += ti.Process(&buff, time.Now().Unix(), 10)

	assert.Equal(t, num, int64(1))
	dataForGraphite := buff.String()

	meanRegexp := regexp.MustCompile(`time\.upper_75 1\.`)
	matched := meanRegexp.MatchString(dataForGraphite)
	assert.Equal(t, matched, false)

	meanRegexp = regexp.MustCompile(`time\.lower_75 1\.`)
	matched = meanRegexp.MatchString(dataForGraphite)
	assert.Equal(t, matched, true)
}
예제 #3
0
func BenchmarkMillionSameTimersAddAndProcess(b *testing.B) {
	metrics := getSameTimers(1000000)
	b.ResetTimer()
	pct, _ := timers.NewPercentiles("99")
	t := timers.New("bar", *pct)
	for i := 0; i < len(metrics); i++ {
		for n := 0; n < b.N; n++ {
			t.Add(&metrics[i])
		}
	}
	t.Process(&bytes.Buffer{}, time.Now().Unix(), 10)
}
예제 #4
0
func TestMean(t *testing.T) {
	// Some data with expected mean of 20
	d := []byte("response_time:0|ms\nresponse_time:30|ms\nresponse_time:30|ms")
	packets := udp.ParseMessage(d, prefix_internal, output, udp.ParseLine)

	ti := timers.New("", timers.Percentiles{})

	for _, p := range packets {
		ti.Add(p)
	}
	var buff bytes.Buffer
	num := ti.Process(&buff, time.Now().Unix(), 60)
	assert.Equal(t, num, int64(1))
	dataForGraphite := buff.String()
	pattern := `response_time\.mean 20\.[0-9]+ `
	meanRegexp := regexp.MustCompile(pattern)

	matched := meanRegexp.MatchString(dataForGraphite)
	assert.Equal(t, matched, true)
}
예제 #5
0
// metricsMonitor basically guards the metrics datastructures.
// it typically receives metrics on the Metrics channel but also responds to
// external signals and every flushInterval, computes and flushes the data
func (s *StatsDaemon) metricsMonitor() {
	period := time.Duration(s.flushInterval) * time.Second
	tick := ticker.GetAlignedTicker(period)

	var c *counters.Counters
	var g *gauges.Gauges
	var t *timers.Timers

	initializeCounters := func() {
		c = counters.New(s.prefix_rates)
		g = gauges.New(s.prefix_gauges)
		t = timers.New(s.prefix_timers, s.pct)
		for _, name := range []string{"timer", "gauge", "counter"} {
			c.Add(&common.Metric{
				Bucket:   fmt.Sprintf("%sdirection_is_in.statsd_type_is_%s.target_type_is_count.unit_is_Metric", s.prefix, name),
				Sampling: 1,
			})
		}
	}
	initializeCounters()
	for {
		select {
		case sig := <-s.signalchan:
			switch sig {
			case syscall.SIGTERM, syscall.SIGINT:
				fmt.Printf("!! Caught signal %s... shutting down\n", sig)
				if err := s.submit(c, g, t, time.Now().Add(period)); err != nil {
					log.Printf("ERROR: %s", err)
				}
				return
			default:
				fmt.Printf("unknown signal %s, ignoring\n", sig)
			}
		case <-tick.C:
			go func(c *counters.Counters, g *gauges.Gauges, t *timers.Timers) {
				if err := s.submit(c, g, t, time.Now().Add(period)); err != nil {
					log.Printf("ERROR: %s", err)
				}
				s.events.Broadcast <- "flush"
			}(c, g, t)
			initializeCounters()
			tick = ticker.GetAlignedTicker(period)
		case m := <-s.Metrics:
			var name string
			if m.Modifier == "ms" {
				t.Add(m)
				name = "timer"
			} else if m.Modifier == "g" {
				g.Add(m)
				name = "gauge"
			} else {
				c.Add(m)
				name = "counter"
			}
			c.Add(&common.Metric{
				Bucket:   fmt.Sprintf("%sdirection_is_in.statsd_type_is_%s.target_type_is_count.unit_is_Metric", s.prefix, name),
				Value:    1,
				Sampling: 1,
			})
		}
	}
}