Show global query stats and histograms on /status

geodns.go

@@ -118,8 +118,11 @@ func main() {
 	}
 
 	go configWatcher(configFileName)
+
+	metrics := NewMetrics()
+	go metrics.Updater()
+
 	go statHatPoster()
-	go metricsPoster()
 
 	if *flaginter == "*" {
 		addrs, _ := net.InterfaceAddrs()

metrics.go

@@ -10,19 +10,41 @@ import (
 
 var qCounter = metrics.NewMeter()
 
-func metricsPoster() {
+type ServerMetrics struct {
+	lastQueryCount       int64
+	queriesHistogram10   *metrics.StandardHistogram
+	queriesHistogram60   *metrics.StandardHistogram
+	queriesHistogram1440 *metrics.StandardHistogram
+	goroutines           *metrics.StandardGauge
+}
 
-	lastQueryCount := qCounter.Count()
+func NewMetrics() *ServerMetrics {
+	m := new(ServerMetrics)
 
+	m.lastQueryCount = qCounter.Count()
 	metrics.Register("queries", qCounter)
 
-	queriesHistogram := metrics.NewHistogram(metrics.NewUniformSample(600))
-	metrics.Register("queriesHistogram", queriesHistogram)
+	m.queriesHistogram10 = metrics.NewHistogram(metrics.NewUniformSample(600))
+	metrics.Register("queries-histogram10", m.queriesHistogram10)
+
+	m.queriesHistogram60 = metrics.NewHistogram(metrics.NewUniformSample(3600))
+	metrics.Register("queries-histogram60", m.queriesHistogram60)
 
-	goroutines := metrics.NewGauge()
-	metrics.Register("goroutines", goroutines)
+	m.queriesHistogram1440 = metrics.NewHistogram(metrics.NewUniformSample(24 * 60 * 60))
+	metrics.Register("queries-histogram1440", m.queriesHistogram1440)
 
-	go metrics.Log(metrics.DefaultRegistry, 30, log.New(os.Stderr, "metrics: ", log.Lmicroseconds))
+	m.goroutines = metrics.NewGauge()
+	metrics.Register("goroutines", m.goroutines)
+
+	return m
+}
+
+func (m *ServerMetrics) Updater() {
+
+	go func() {
+		time.Sleep(2 * time.Second)
+		metrics.Log(metrics.DefaultRegistry, 30, log.New(os.Stderr, "metrics: ", log.Lmicroseconds))
+	}()
 
 	for {
 		time.Sleep(1 * time.Second)
@@ -30,11 +52,14 @@ func metricsPoster() {
 		// log.Println("updating metrics")
 
 		current := qCounter.Count()
-		newQueries := current - lastQueryCount
-		lastQueryCount = current
+		newQueries := current - m.lastQueryCount
+		m.lastQueryCount = current
+
+		m.queriesHistogram10.Update(newQueries)
+		m.queriesHistogram60.Update(newQueries)
+		m.queriesHistogram1440.Update(newQueries)
 
-		queriesHistogram.Update(newQueries)
-		goroutines.Update(int64(runtime.NumGoroutine()))
+		m.goroutines.Update(int64(runtime.NumGoroutine()))
 
 	}
 }

monitor.go

@@ -4,6 +4,7 @@ import (
 	"code.google.com/p/go.net/websocket"
 	"encoding/json"
 	"fmt"
+	"github.com/abh/go-metrics"
 	"html/template"
 	"io"
 	"log"
@@ -227,6 +228,29 @@ func round(val float64, prec int) float64 {
 
 }
 
+type histogramData struct {
+	Count  int64
+	Max    int64
+	Min    int64
+	Mean   float64
+	Pct90  float64
+	Pct99  float64
+	Pct999 float64
+	StdDev float64
+}
+
+func setupHistogramData(met *metrics.StandardHistogram, dat *histogramData) {
+	dat.Count = met.Count()
+	dat.Max = met.Max()
+	dat.Min = met.Min()
+	dat.Mean = met.Mean()
+	dat.StdDev = met.StdDev()
+	percentiles := met.Percentiles([]float64{0.90, 0.99, 0.999})
+	dat.Pct90 = percentiles[0]
+	dat.Pct99 = percentiles[1]
+	dat.Pct999 = percentiles[2]
+}
+
 func StatusServer(zones Zones) func(http.ResponseWriter, *http.Request) {
 
 	return func(w http.ResponseWriter, req *http.Request) {
@@ -257,6 +281,12 @@ func StatusServer(zones Zones) func(http.ResponseWriter, *http.Request) {
 			Version string
 			Zones   Rates
 			Uptime  DayDuration
+			Global  struct {
+				Queries       *metrics.StandardMeter
+				Histogram10   histogramData
+				Histogram60   histogramData
+				Histogram1440 histogramData
+			}
 		}
 
 		uptime := DayDuration{time.Since(timeStarted)}
@@ -268,6 +298,12 @@ func StatusServer(zones Zones) func(http.ResponseWriter, *http.Request) {
 			Uptime:  uptime,
 		}
 
+		status.Global.Queries = metrics.Get("queries").(*metrics.StandardMeter)
+
+		setupHistogramData(metrics.Get("queries-histogram10").(*metrics.StandardHistogram), &status.Global.Histogram10)
+		setupHistogramData(metrics.Get("queries-histogram60").(*metrics.StandardHistogram), &status.Global.Histogram60)
+		setupHistogramData(metrics.Get("queries-histogram1440").(*metrics.StandardHistogram), &status.Global.Histogram1440)
+
 		err = tmpl.Execute(w, status)
 		if err != nil {
 			log.Println("Status template error", err)

monitor_test.go

@@ -10,13 +10,16 @@ import (
 )
 
 type MonitorSuite struct {
-	zones Zones
+	zones   Zones
+	metrics *ServerMetrics
 }
 
 var _ = Suite(&MonitorSuite{})
 
 func (s *MonitorSuite) SetUpSuite(c *C) {
 	s.zones = make(Zones)
+	s.metrics = NewMetrics()
+	go s.metrics.Updater()
 
 	*flaghttp = ":8881"
 

status.html

@@ -10,42 +10,120 @@
 
 <h1>Global</h1>
 
-<table class="table table-bordered table-condensed">
-<tr>
-	<td class="info header">Uptime</td><td>{{.Uptime.DayString}}</td>
-</tr>
-</table>
+<div class="row">
+
+	<div class="span8">
+
+		<table class="table table-bordered table-condensed">
+			<tr>
+				<td class="info header">Global stats</td>
+				<td>1 min</td>
+				<td>5 min</td>
+				<td>15 min</td>
+				<td>Mean</td>
+			</tr>
+
+			<tr>
+				<td>Queries</td>
+				<td>{{printf "%.2f" .Global.Queries.Rate1}}</td>
+				<td>{{printf "%.2f" .Global.Queries.Rate5}}</td>
+				<td>{{printf "%.2f" .Global.Queries.Rate15}}</td>
+				<td>{{printf "%.2f" .Global.Queries.RateMean}}</td>
+			</tr>
+		</table>
+
+		<table class="table table-bordered table-condensed">
+			<tr>
+				<td class="info header">Histograms</td>
+				<td>Min</td>
+				<td>Mean</td>
+				<td>90%</td>
+				<td>99%</td>
+				<td>99.9%</td>
+				<td>Max</td>
+				<td>StdDev</td>
+			</tr>
+
+			<tr>
+				<td>10 minutes <small>({{.Global.Histogram10.Count}})</small></td>
+				<td>{{printf "%d"   .Global.Histogram10.Min}}</td>
+				<td>{{printf "%.2f" .Global.Histogram10.Mean}}</td>
+				<td>{{printf "%.2f" .Global.Histogram10.Pct90 }}</td>
+				<td>{{printf "%.2f" .Global.Histogram10.Pct99 }}</td>
+				<td>{{printf "%.2f" .Global.Histogram10.Pct999 }}</td>
+				<td>{{printf "%d"   .Global.Histogram10.Max}}</td>
+				<td>{{printf "%.2f" .Global.Histogram10.StdDev }}</td>
+			</tr>
+
+			<tr>
+				<td>60 minutes <small>({{.Global.Histogram60.Count}})</small></td>
+				<td>{{printf "%d"   .Global.Histogram60.Min}}</td>
+				<td>{{printf "%.2f" .Global.Histogram60.Mean}}</td>
+				<td>{{printf "%.2f" .Global.Histogram60.Pct90 }}</td>
+				<td>{{printf "%.2f" .Global.Histogram60.Pct99 }}</td>
+				<td>{{printf "%.2f" .Global.Histogram60.Pct999 }}</td>
+				<td>{{printf "%d"   .Global.Histogram60.Max}}</td>
+				<td>{{printf "%.2f" .Global.Histogram60.StdDev }}</td>
+			</tr>
+
+			<tr>
+				<td>1 day <small>({{.Global.Histogram1440.Count}})</small></td>
+				<td>{{printf "%d"   .Global.Histogram1440.Min}}</td>
+				<td>{{printf "%.2f" .Global.Histogram1440.Mean}}</td>
+				<td>{{printf "%.2f" .Global.Histogram1440.Pct90 }}</td>
+				<td>{{printf "%.2f" .Global.Histogram1440.Pct99 }}</td>
+				<td>{{printf "%.2f" .Global.Histogram1440.Pct999 }}</td>
+				<td>{{printf "%d"   .Global.Histogram1440.Max}}</td>
+				<td>{{printf "%.2f" .Global.Histogram1440.StdDev }}</td>
+			</tr>
+
+		</table>
+
+	</div>
+
+	<div class="span4">
+
+		<table class="table table-bordered table-condensed">
+		<tr>
+			<td class="info header">Uptime</td><td>{{.Uptime.DayString}}</td>
+
+		</tr>
+		</table>
+
+	</div>
+
+</div>
 
 <h1>Zones</h1>
 <table class="table table-bordered table-condensed">
 <tr>
 <th></th>
-<th>Mean QPS</th>
 <th>1 minute</th>
 <th>5 minutes</th>
 <th>15 minutes</th>
+<th>Mean QPS</th>
 </tr>
 
 {{range  .Zones }}
 
 	<tr class="info">
-		<td colspan=5 class="zonename"><b>{{.Name}}</b></td>
+		<td colspan=5 class="zonename">{{.Name}}</td>
 	</tr>
 
 	<tr>
 		<td>Queries</td>
-		<td>{{printf "%.2f" .Metrics.Queries.RateMean}}</td>
 		<td>{{printf "%.2f" .Metrics.Queries.Rate1}}</td>
 		<td>{{printf "%.2f" .Metrics.Queries.Rate5}}</td>
 		<td>{{printf "%.2f" .Metrics.Queries.Rate15}}</td>
+		<td>{{printf "%.2f" .Metrics.Queries.RateMean}}</td>
 	</tr>
 
 	<tr>
 		<td>EDNS Queries</td>
-		<td>{{printf "%.2f" .Metrics.EdnsQueries.RateMean}}</td>
 		<td>{{printf "%.2f" .Metrics.EdnsQueries.Rate1}}</td>
 		<td>{{printf "%.2f" .Metrics.EdnsQueries.Rate5}}</td>
 		<td>{{printf "%.2f" .Metrics.EdnsQueries.Rate15}}</td>
+		<td>{{printf "%.2f" .Metrics.EdnsQueries.RateMean}}</td>
 	</tr>
 
 {{end}}

status.html.go

@@ -11,45 +11,72 @@ import (
 // status_html returns raw, uncompressed file data.
 func status_html() []byte {
 	gz, err := gzip.NewReader(bytes.NewBuffer([]byte{
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+0xe8,0xd0,0x51,0xe8,0xd0,0x59,0xe8,0xd0,0x59,0xe8,0xd0,0x5d,
+0xe8,0xd0,0x4d,0xe8,0xf0,0x0d,0x42,0x07,0x88,0x92,0xf5,0xd9,
+0x66,0xbe,0xbd,0x7d,0x7f,0x3b,0x9b,0xff,0x70,0x6a,0x68,0x4b,
+0x74,0x6a,0x69,0xc3,0x74,0x6d,0xea,0x9a,0xeb,0xd2,0xd6,0x0d,
+0xd7,0xa5,0xb1,0x6d,0xb8,0x2e,0xad,0x6d,0x88,0x67,0x34,0xdf,
+0x79,0x87,0x45,0xbe,0x9e,0x53,0xda,0xe6,0x95,0xdb,0x77,0xcd,
+0x2b,0x75,0x51,0x9d,0x7a,0xc1,0x7d,0x5b,0xa8,0x6c,0x0e,0xd6,
+0xb3,0x32,0x22,0x5c,0x22,0xf8,0x8e,0xac,0xc7,0x4a,0x47,0x37,
+0xab,0xfd,0xee,0xb6,0xbe,0x7a,0x6b,0xb7,0x9b,0xab,0x9e,0xc3,
+0x7e,0xe8,0x51,0x4f,0x96,0x13,0x99,0x93,0xd7,0xd6,0xe7,0x48,
+0xa5,0xa6,0x9c,0xd3,0x72,0x15,0x54,0x8f,0xbd,0x2d,0xd2,0xaf,
+0x1f,0x84,0x3b,0x87,0x5a,0x30,0x53,0xa4,0xe8,0xf9,0x69,0x5c,
+0x21,0x65,0xe2,0x8b,0x42,0x10,0x36,0x03,0xad,0xb4,0x75,0x55,
+0x4b,0x63,0x22,0x51,0x62,0x37,0x43,0x55,0xf6,0x74,0xd6,0x78,
+0x6e,0x64,0x18,0xf6,0xeb,0xdd,0x7a,0x92,0xf5,0x4c,0xb6,0x1e,
+0xf5,0xa2,0x51,0xb6,0xd6,0xb5,0x4a,0x7a,0xcb,0x54,0xd6,0x5a,
+0x35,0x23,0xd0,0x89,0x4e,0xe4,0xa9,0xa1,0xec,0x62,0x4e,0xdf,
+0x81,0x13,0xb8,0x90,0xf6,0x3a,0xbf,0x25,0xe8,0x7b,0xf3,0xa1,
+0xf3,0x96,0xc8,0xef,0x29,0x93,0x2e,0xd1,0x1f,0xf2,0x2e,0x0d,
+0xe6,0xc8,0x9e,0x2b,0xb1,0x2d,0x13,0x45,0x01,0x8c,0x9a,0x92,
+0xda,0xb6,0xc9,0xb6,0x4b,0xca,0x4f,0x1a,0xdd,0x1c,0xe6,0xfb,
+0xb0,0xfb,0x3b,0x00,0x00,0xff,0xff,0xe0,0x5f,0x4d,0x4f,0x27,
+0x0e,0x00,0x00,
 	}))
 
 	if err != nil {