// Metrics registers the DNS metrics to Prometheus, and starts the internal metrics
// server if the environment variable PROMETHEUS_PORT is set.
func Metrics() error {
// We do this in a function instead of using var + init(), because we want to
// able to set Namespace and/or Subsystem.
if Port == "" {
return nil
}
_, err := strconv.Atoi(Port)
if err != nil {
fmt.Errorf("bad port for prometheus: %s", Port)
}
defineMetrics()
prometheus.MustRegister(requestCount)
prometheus.MustRegister(requestDuration)
prometheus.MustRegister(responseSize)
prometheus.MustRegister(errorCount)
prometheus.MustRegister(cacheMiss)
http.Handle(Path, prometheus.Handler())
go func() {
fmt.Errorf("%s", http.ListenAndServe(":"+Port, nil))
}()
return nil
}
func init() {
prometheus.MustRegister(cpuUsage)
prometheus.MustRegister(memUsage)
prometheus.MustRegister(deviceCount)
prometheus.MustRegister(serverCount)
prometheus.MustRegister(threadCount)
}
func New(configFile string) (e exporter, err error) {
e = exporter{
configFile: configFile,
Metrics: map[string]*prometheus.GaugeVec{},
scrapeDuration: prometheus.NewSummaryVec(
prometheus.SummaryOpts{
Namespace: namespace,
Name: "scrape_duration_seconds",
Help: "gmond_exporter: Duration of a scrape job.",
},
[]string{"endpoint", "result"},
),
metricsUpdated: prometheus.NewGaugeVec(
prometheus.GaugeOpts{
Namespace: namespace,
Name: "metrics_updated_count",
Help: "gmond_exporter: Number of metrics updated.",
},
[]string{"endpoint"},
),
metricsExported: prometheus.NewGauge(prometheus.GaugeOpts{
Namespace: namespace,
Name: "metrics_exported_count",
Help: "gmond_exporter: Number of metrics exported.",
}),
configChan: make(chan config),
listeningAddress: ":8080",
gangliaScrapeInterval: 60 * time.Second,
}
conf, err := e.readConfig()
if err != nil {
return e, fmt.Errorf("Couldn't read config: %s", err)
}
e.conf = conf
if conf.ListeningAddress != "" {
e.listeningAddress = conf.ListeningAddress
}
if conf.GangliaScrapeInterval != 0 {
e.gangliaScrapeInterval = time.Duration(conf.GangliaScrapeInterval) * time.Second
}
prometheus.MustRegister(e.scrapeDuration)
prometheus.MustRegister(e.metricsUpdated)
prometheus.MustRegister(e.metricsExported)
debug("Registered internal metrics")
sig := make(chan os.Signal, 1)
signal.Notify(sig, syscall.SIGHUP)
go func() {
for _ = range sig {
e.reloadConfig() // sends a new config to configChan
}
}()
go e.serveStatus()
return e, nil
}
// Register registers all metrics to Prometheus with
// respect to the RequestLatency.
func Register() {
// Register the metrics.
registerMetrics.Do(func() {
prometheus.MustRegister(RequestLatency)
prometheus.MustRegister(RequestResult)
})
}
func init() {
prometheus.MustRegister(leaderGauge)
prometheus.MustRegister(engineTaskCount)
prometheus.MustRegister(engineTaskFailureCount)
prometheus.MustRegister(engineReconcileCount)
prometheus.MustRegister(engineReconcileFailureCount)
}
func init() {
prometheus.MustRegister(sentBytes)
prometheus.MustRegister(receivedBytes)
prometheus.MustRegister(sentFailures)
prometheus.MustRegister(recvFailures)
prometheus.MustRegister(rtts)
}
func init() {
prometheus.MustRegister(promErrorsTotal)
prometheus.MustRegister(promCacheHitsTotal)
prometheus.MustRegister(promCacheQueriesTotal)
prometheus.MustRegister(promQueryDurationMilliseconds)
prometheus.MustRegister(promConcurrentLockVAFV)
}
func init() {
prometheus.MustRegister(readCounter)
prometheus.MustRegister(writeCounter)
prometheus.MustRegister(expireCounter)
prometheus.MustRegister(watchRequests)
prometheus.MustRegister(watcherCount)
}
func main() {
flag.Parse()
if *consumeTime < 1 {
log.Fatal("consume time should be >0")
}
resp, err := http.Get(fmt.Sprintf("http://%s/varz", *natsaddr))
if err != nil {
log.Fatal(err)
}
if resp.StatusCode != http.StatusOK {
log.Fatalf("expected statuscode 200 got %v", resp.StatusCode)
}
resp.Body.Close()
prometheus.MustRegister(bytesCounter)
prometheus.MustRegister(messageCounter)
prometheus.MustRegister(connections)
prometheus.MustRegister(slowConsumers)
go consume()
http.Handle("/metrics", prometheus.Handler())
if err := http.ListenAndServe(*addr, nil); err != nil {
log.Fatal(err)
}
}
func init() {
prometheus.MustRegister(targetIntervalLength)
prometheus.MustRegister(targetSkippedScrapes)
prometheus.MustRegister(targetReloadIntervalLength)
prometheus.MustRegister(targetSyncIntervalLength)
prometheus.MustRegister(targetScrapePoolSyncsCounter)
}
func init() {
prometheus.MustRegister(cmdCounter)
prometheus.MustRegister(cmdFailedCounter)
prometheus.MustRegister(cmdDuration)
prometheus.MustRegister(cmdFailedDuration)
prometheus.MustRegister(requestDuration)
}
func init() {
prometheus.MustRegister(failedLookfor)
prometheus.MustRegister(successfulLookfor)
prometheus.MustRegister(successfulGarbageCollect)
prometheus.MustRegister(successfulSanityFeed)
prometheus.MustRegister(lastSanityCheckStarted)
}
func main() {
flag.Parse()
handler := prometheus.Handler()
prometheus.MustRegister(watts)
prometheus.MustRegister(updatesPerPost)
prometheus.MustRegister(voltage)
http.Handle(*metricsPath, handler)
http.HandleFunc("/activate", activateHandler)
http.HandleFunc("/post", postHandler)
http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
w.Write([]byte(`<html>
<head><title>TED Exporter</title></head>
<body>
<h1>TED Exporter</h1>
<p><a href="` + *metricsPath + `">Metrics</a></p>
</body>
</html>`))
})
log.Infof("Starting ted_exporter v%s at %s", Version, *listenAddress)
err := http.ListenAndServe(*listenAddress, nil)
if err != nil {
log.Fatal(err)
}
}
func registerProbes() {
for _, probe := range config.Probes {
probeURL, _ := url.Parse(probe)
monitors := &probeMonitor{}
monitors.Expires = prometheus.NewGauge(prometheus.GaugeOpts{
Name: "certcheck_expires",
Help: "Expiration date in unix timestamp (UTC)",
ConstLabels: prometheus.Labels{
"host": probeURL.Host,
},
})
monitors.IsValid = prometheus.NewGauge(prometheus.GaugeOpts{
Name: "certcheck_valid",
Help: "Validity of the certificate (0/1)",
ConstLabels: prometheus.Labels{
"host": probeURL.Host,
},
})
prometheus.MustRegister(monitors.Expires)
prometheus.MustRegister(monitors.IsValid)
probeMonitors[probeURL.Host] = monitors
}
}
// Register metrics to Prometheus
func init() {
prometheus.MustRegister(channelsTotal)
prometheus.MustRegister(connectionsTotal)
prometheus.MustRegister(queuesTotal)
prometheus.MustRegister(exchangesTotal)
prometheus.MustRegister(consumersTotal)
}
func setupMetrics(ctx *grader.Context) {
for _, gauge := range gauges {
prometheus.MustRegister(gauge)
}
for _, counter := range counters {
prometheus.MustRegister(counter)
}
for _, summary := range summaries {
prometheus.MustRegister(summary)
}
metricsMux := http.NewServeMux()
metricsMux.Handle("/metrics", prometheus.Handler())
go func() {
addr := fmt.Sprintf(":%d", ctx.Config.Metrics.Port)
ctx.Log.Error(
"http listen and serve",
"err", http.ListenAndServe(addr, metricsMux),
)
}()
go func() {
gaugesUpdate()
time.Sleep(time.Duration(1) * time.Minute)
}()
}
func initMonitoring() {
prometheus.MustRegister(UserCount)
prometheus.MustRegister(MessageSentCount)
prometheus.MustRegister(MessageReadCount)
prometheus.MustRegister(PublicMessageCount)
prometheus.MustRegister(DirectMessageCount)
}
// NewMiddleware returns a new prometheus Middleware handler.
func NewMiddleware(name string, buckets ...float64) *Middleware {
var m Middleware
m.reqs = prometheus.NewCounterVec(
prometheus.CounterOpts{
Name: reqsName,
Help: "How many HTTP requests processed, partitioned by status code, method and HTTP path.",
ConstLabels: prometheus.Labels{"service": name},
},
[]string{"code", "method", "path"},
)
prometheus.MustRegister(m.reqs)
if len(buckets) == 0 {
buckets = dflBuckets
}
m.latency = prometheus.NewHistogramVec(prometheus.HistogramOpts{
Name: latencyName,
Help: "How long it took to process the request, partitioned by status code, method and HTTP path.",
ConstLabels: prometheus.Labels{"service": name},
Buckets: buckets,
},
[]string{"code", "method", "path"},
)
prometheus.MustRegister(m.latency)
return &m
}
func init() {
prometheus.MustRegister(watchersCoalescing)
prometheus.MustRegister(eventsCoalescing)
prometheus.MustRegister(cacheKeys)
prometheus.MustRegister(cacheHits)
prometheus.MustRegister(cachedMisses)
}
func init() {
prometheus.MustRegister(backupDuration)
prometheus.MustRegister(backupSeen)
prometheus.MustRegister(backupSize)
prometheus.MustRegister(backupsTotal)
prometheus.MustRegister(backupsFailed)
}
func startMonitoring(addr string) {
var redisActiveConn = prometheus.NewGauge(prometheus.GaugeOpts{
Name: "redis_active_conn",
Help: "Number of active redis connections.",
})
prometheus.MustRegister(redisActiveConn)
var redisMaxConn = prometheus.NewGauge(prometheus.GaugeOpts{
Name: "redis_max_conn",
Help: "Maximum number of redis connections.",
})
prometheus.MustRegister(redisMaxConn)
http.Handle("/metrics", prometheus.Handler())
redisMaxConn.Set(float64(redisPool.MaxActive))
go func() {
tick := time.NewTicker(1 * time.Second)
for range tick.C {
if redisPool == nil {
redisActiveConn.Set(0)
} else {
redisActiveConn.Set(float64(redisPool.ActiveCount()))
}
}
}()
err := http.ListenAndServe(addr, nil)
if err != nil {
lg.Fatal(err)
}
}
// Register all metrics.
func Register() {
// Register the metrics.
registerMetrics.Do(func() {
prometheus.MustRegister(E2eSchedulingLatency)
prometheus.MustRegister(SchedulingAlgorithmLatency)
prometheus.MustRegister(BindingLatency)
})
}
func init() {
prometheus.MustRegister(receivedCounter)
prometheus.MustRegister(failedCounter)
prometheus.MustRegister(handlingDuration)
prometheus.MustRegister(sentBytes)
prometheus.MustRegister(receivedBytes)
}
func Register() {
registerMetrics.Do(func() {
prometheus.MustRegister(ZoneHealth)
prometheus.MustRegister(ZoneSize)
prometheus.MustRegister(UnhealthyNodes)
prometheus.MustRegister(EvictionsNumber)
})
}
func init() {
prometheus.MustRegister(rpcFailuresCount)
prometheus.MustRegister(rpcDuration)
// Initialize metric vectors.
rpcDuration.WithLabelValues("catalog", "service")
rpcDuration.WithLabelValues("catalog", "services")
}
func Register() {
registerMetrics.Do(func() {
prometheus.MustRegister(OffersReceived)
prometheus.MustRegister(OffersDeclined)
prometheus.MustRegister(OffersAcquired)
prometheus.MustRegister(OffersReleased)
})
}
// Register all metrics.
func Register() {
// Register the metrics.
registerMetrics.Do(func() {
prometheus.MustRegister(EventProcessingLatency)
prometheus.MustRegister(DirtyProcessingLatency)
prometheus.MustRegister(OrphanProcessingLatency)
})
}
func init() {
prometheus.MustRegister(dnsDurations)
prometheus.MustRegister(storeCounts)
prometheus.MustRegister(storeDurations)
prometheus.MustRegister(storeErrors)
prometheus.MustRegister(
prometheus.NewProcessCollectorPIDFn(consulAgentPid, "consul"),
)
}
func init() {
torus.RegisterMetadataService("etcd", newEtcdMetadata)
torus.RegisterMetadataInit("etcd", initEtcdMetadata)
torus.RegisterMetadataWipe("etcd", wipeEtcdMetadata)
torus.RegisterSetRing("etcd", setRing)
prometheus.MustRegister(promAtomicRetries)
prometheus.MustRegister(promOps)
}
// RegisterPrometheusMetrics defines and registers the appropriate metrics
// with prometheus.
func RegisterPrometheusMetrics(namespace, subsystem string) {
defineMetrics(namespace, subsystem)
prometheus.MustRegister(requestCount)
prometheus.MustRegister(requestDuration)
prometheus.MustRegister(responseSize)
prometheus.MustRegister(errorCount)
prometheus.MustRegister(cacheMiss)
}
