func startMetrics(appName, graphiteServer string) {
if graphiteServer == "" {
glog.Warningf("No metrics server specified.")
return
}
addr, err := net.ResolveTCPAddr("tcp", graphiteServer)
if err != nil {
glog.Fatalf("Unable to resolve metrics server address: %s", err)
}
// Get the hostname and create the app-prefix.
hostName, err := os.Hostname()
if err != nil {
glog.Fatalf("Unable to retrieve hostname: %s", err)
}
appPrefix := fmt.Sprintf("%s.%s", appName, strings.Replace(hostName, ".", "-", -1))
// Runtime metrics.
metrics.RegisterRuntimeMemStats(metrics.DefaultRegistry)
go metrics.CaptureRuntimeMemStats(metrics.DefaultRegistry, SAMPLE_PERIOD)
go graphite.Graphite(metrics.DefaultRegistry, SAMPLE_PERIOD, appPrefix, addr)
// Uptime.
uptimeGuage := metrics.GetOrRegisterGaugeFloat64("uptime", metrics.DefaultRegistry)
go func() {
startTime := time.Now()
uptimeGuage.Update(0)
for _ = range time.Tick(SAMPLE_PERIOD) {
uptimeGuage.Update(time.Since(startTime).Seconds())
}
}()
}
func newMemoryMetricaDataSource(pollInterval int) goMetricaDataSource {
r := metrics.NewRegistry()
metrics.RegisterRuntimeMemStats(r)
metrics.CaptureRuntimeMemStatsOnce(r)
go metrics.CaptureRuntimeMemStats(r, time.Duration(pollInterval)*time.Second)
return goMetricaDataSource{r}
}
func newStandardBucket(name string) standardBucket {
registry := gometrics.NewRegistry()
gometrics.RegisterRuntimeMemStats(registry)
go gometrics.CaptureRuntimeMemStats(registry, RuntimeMemStatsSampleInterval)
return standardBucket{
name: name,
registry: registry,
timers: make(map[string]Timer),
gauges: make(map[string]Gauge),
}
}
func NewPointInPolygonMetrics() *WOFPointInPolygonMetrics {
registry := metrics.NewRegistry()
cnt_lookups := metrics.NewCounter()
cnt_unmarshal := metrics.NewCounter()
cnt_cache_hit := metrics.NewCounter()
cnt_cache_miss := metrics.NewCounter()
cnt_cache_set := metrics.NewCounter()
tm_unmarshal := metrics.NewTimer()
tm_intersect := metrics.NewTimer()
tm_inflate := metrics.NewTimer()
tm_contain := metrics.NewTimer()
tm_process := metrics.NewTimer()
registry.Register("pip.reversegeo.lookups", cnt_lookups)
registry.Register("pip.geojson.unmarshaled", cnt_unmarshal)
registry.Register("pip.cache.hit", cnt_cache_hit)
registry.Register("pip.cache.miss", cnt_cache_miss)
registry.Register("pip.cache.set", cnt_cache_set)
registry.Register("pip.timer.reversegeo", tm_process)
registry.Register("pip.timer.unmarshal", tm_unmarshal)
// registry.Register("time-to-intersect", tm_intersect)
// registry.Register("time-to-inflate", tm_inflate)
registry.Register("pip.timer.containment", tm_contain)
m := WOFPointInPolygonMetrics{
Registry: ®istry,
CountLookups: &cnt_lookups,
CountUnmarshal: &cnt_unmarshal,
CountCacheHit: &cnt_cache_hit,
CountCacheMiss: &cnt_cache_miss,
CountCacheSet: &cnt_cache_set,
TimeToUnmarshal: &tm_unmarshal,
TimeToIntersect: &tm_intersect,
TimeToInflate: &tm_inflate,
TimeToContain: &tm_contain,
TimeToProcess: &tm_process,
}
metrics.RegisterRuntimeMemStats(registry)
go metrics.CaptureRuntimeMemStats(registry, 10e9)
return &m
}
func (s *stats) start() {
// Register GC stats.
registerGCStats(s.registry)
go captureGCStats(s.registry, recordInterval)
// Register rusage stats.
registerRusageStats(s.registry)
go captureRusageStats(s.registry, recordInterval)
// Register debug stats.
metrics.RegisterDebugGCStats(s.registry)
go metrics.CaptureDebugGCStats(s.registry, recordInterval)
// Register runtime stats.
metrics.RegisterRuntimeMemStats(s.registry)
go metrics.CaptureRuntimeMemStats(s.registry, recordInterval)
// Start monitoring
go s.monitor()
}
func setupMetrics(s *options.Settings) {
gometrics.RegisterRuntimeMemStats(gometrics.DefaultRegistry)
go gometrics.CaptureRuntimeMemStats(gometrics.DefaultRegistry, 60*time.Second)
http.Handle("/metrics", metrics.Default)
go http.ListenAndServe(s.MetricsListenAddress, nil)
}
