// NewStatsdReporter returns a StatsReporter that reports to statsd on the given addr.
func NewStatsdReporter(addr, prefix string) (tchannel.StatsReporter, error) {
client, err := statsd.NewBufferedClient(addr, prefix, time.Second, 0)
if err != nil {
return nil, err
}
return NewStatsdReporterClient(client), nil
}
// InitializeStatsdCollector creates the connection to the Statsd server
// and should be called before any metrics are recorded.
//
// Users should ensure to call Close() on the client.
func InitializeStatsdCollector(config *StatsdCollectorConfig) (*StatsdCollectorClient, error) {
c, err := statsd.NewBufferedClient(config.StatsdAddr, config.Prefix, 1*time.Second, 512)
if err != nil {
log.Printf("Could not initiale buffered client: %s. Falling back to a Noop Statsd client", err)
c, _ = statsd.NewNoopClient()
}
return &StatsdCollectorClient{
client: c,
}, err
}
func BenchmarkCactusTimingAsDuration(b *testing.B) {
s := newServer()
c, err := cactus.NewBufferedClient(addr, prefix, flushPeriod, 1432)
if err != nil {
b.Fatal(err)
}
b.StartTimer()
for i := 0; i < b.N; i++ {
c.Inc(counterKey, 1, 1)
c.Gauge(gaugeKey, gaugeValue, 1)
c.TimingDuration(timingKey, tValDur, 1)
}
c.Close()
b.StopTimer()
s.Close()
}
func NewStatsdBuffer(c Emitter, hostname, serviceName string) (statsdbuffer statsd.Statter, err error) {
if hostname == "" {
hostname = "EventsServiceUnknownHost"
}
hostname = CleanStatsdComponent(hostname)
if serviceName == "" {
serviceName = "EventsServiceUnknownService"
}
serviceName = CleanStatsdComponent(serviceName)
prefix := strings.Join([]string{c.Prefix, serviceName, hostname}, ".")
prefix = strings.TrimLeft(prefix, ".")
statsdbuffer, err = statsd.NewBufferedClient(net.JoinHostPort(c.Host, c.Port), prefix, time.Duration(c.Interval)*time.Second, 0)
if err != nil {
return
}
return
}
func BenchmarkCactus(b *testing.B) {
s := newServer()
c, err := cactus.NewBufferedClient(s.Addr(), prefix, flushPeriod, 1432)
if err != nil {
b.Fatal(err)
}
b.ResetTimer()
for i := 0; i < b.N; i++ {
c.Inc(counterKey, 1, 1)
c.Gauge(gaugeKey, gaugeValue, 1)
c.Timing(timingKey, int64(timingValue), 1)
}
c.Close()
s.Close()
}
func main() {
flag.Parse()
cf_lager.AddFlags(flag.CommandLine)
logger, reconfigurableSink := cf_lager.New("routing-api")
err := checkFlags()
if err != nil {
logger.Error("failed to start", err)
os.Exit(1)
}
cfg, err := config.NewConfigFromFile(*configPath)
if err != nil {
logger.Error("failed to start", err)
os.Exit(1)
}
err = dropsonde.Initialize(cfg.MetronConfig.Address+":"+cfg.MetronConfig.Port, cfg.LogGuid)
if err != nil {
logger.Error("failed to initialize Dropsonde", err)
os.Exit(1)
}
if cfg.DebugAddress != "" {
cf_debug_server.Run(cfg.DebugAddress, reconfigurableSink)
}
database, err := initializeDatabase(cfg, logger)
if err != nil {
logger.Error("failed to initialize database", err)
os.Exit(1)
}
err = database.Connect()
if err != nil {
logger.Error("failed to connect to database", err)
os.Exit(1)
}
defer database.Disconnect()
prefix := "routing_api"
statsdClient, err := statsd.NewBufferedClient(cfg.StatsdEndpoint, prefix, cfg.StatsdClientFlushInterval, 512)
if err != nil {
logger.Error("failed to create a statsd client", err)
os.Exit(1)
}
defer statsdClient.Close()
stopChan := make(chan struct{})
apiServer := constructApiServer(cfg, database, statsdClient, stopChan, logger)
stopper := constructStopper(stopChan)
routerRegister := constructRouteRegister(cfg.LogGuid, database, logger)
metricsTicker := time.NewTicker(cfg.MetricsReportingInterval)
metricsReporter := metrics.NewMetricsReporter(database, statsdClient, metricsTicker)
members := grouper.Members{
{"metrics", metricsReporter},
{"api-server", apiServer},
{"conn-stopper", stopper},
{"route-register", routerRegister},
}
group := grouper.NewOrdered(os.Interrupt, members)
process := ifrit.Invoke(sigmon.New(group))
// This is used by testrunner to signal ready for tests.
logger.Info("started", lager.Data{"port": *port})
errChan := process.Wait()
err = <-errChan
if err != nil {
logger.Error("shutdown-error", err)
os.Exit(1)
}
logger.Info("exited")
}
func main() {
// command line flags
var opts struct {
HostPort string `long:"host" default:"127.0.0.1:8125" description:"host:port of statsd server"`
Prefix string `long:"prefix" default:"test-client" description:"Statsd prefix"`
StatType string `long:"type" default:"count" description:"stat type to send. Can be timing, count, guage"`
StatValue int64 `long:"value" default:"1" description:"Value to send"`
Name string `short:"n" long:"name" default:"counter" description:"stat name"`
Rate float32 `short:"r" long:"rate" default:"1.0" description:"sample rate"`
Volume int `short:"c" long:"count" default:"1000" description:"Number of stats to send. Volume."`
Nil bool `long:"nil" default:"false" description:"Use nil client"`
Buffered bool `long:"buffered" default:"false" description:"Use a buffered client"`
Duration time.Duration `short:"d" long:"duration" default:"10s" description:"How long to spread the volume across. Each second of duration volume/seconds events will be sent."`
}
// parse said flags
_, err := flags.Parse(&opts)
if err != nil {
if e, ok := err.(*flags.Error); ok {
if e.Type == flags.ErrHelp {
os.Exit(0)
}
}
fmt.Printf("Error: %+v\n", err)
os.Exit(1)
}
if opts.Nil && opts.Buffered {
fmt.Printf("Specifying both nil and buffered together is invalid.")
os.Exit(1)
}
var client statsd.Statter
if !opts.Nil {
if !opts.Buffered {
client, err = statsd.NewClient(opts.HostPort, opts.Prefix)
} else {
client, err = statsd.NewBufferedClient(opts.HostPort, opts.Prefix, opts.Duration/time.Duration(4), 0)
}
if err != nil {
log.Fatal(err)
}
defer client.Close()
}
var stat func(stat string, value int64, rate float32) error
switch opts.StatType {
case "count":
stat = func(stat string, value int64, rate float32) error {
return client.Inc(stat, value, rate)
}
case "gauge":
stat = func(stat string, value int64, rate float32) error {
return client.Gauge(stat, value, rate)
}
case "timing":
stat = func(stat string, value int64, rate float32) error {
return client.Timing(stat, value, rate)
}
default:
log.Fatal("Unsupported state type")
}
pertick := opts.Volume / int(opts.Duration.Seconds()) / 10
// add some extra tiem, because the first tick takes a while
ender := time.After(opts.Duration + 100*time.Millisecond)
c := time.Tick(time.Second / 10)
count := 0
for {
select {
case <-c:
for x := 0; x < pertick; x++ {
err := stat(opts.Name, opts.StatValue, opts.Rate)
if err != nil {
log.Printf("Got Error: %+v", err)
break
}
count += 1
}
case <-ender:
log.Printf("%d events called", count)
os.Exit(0)
return
}
}
}