func (g *GraphOptions) Prefix(host string, metricType string) string {
prefix := ""
statsdHostKey := util.StatsdHostKey(host)
prefixWithHost := strings.Replace(g.StatsdPrefix, "%s", statsdHostKey, -1)
if prefixWithHost[len(prefixWithHost)-1] != '.' {
prefixWithHost += "."
}
if g.UseStatsdPrefix && metricType == "counter" {
prefix += "stats_counts."
} else if g.UseStatsdPrefix && metricType == "gauge" {
prefix += "stats.gauges."
}
prefix += prefixWithHost
return prefix
}
func main() {
flag.Parse()
hostname, err := os.Hostname()
if err != nil {
log.Fatal(err)
}
if *showVersion {
fmt.Println(util.Version("nsqd"))
return
}
if *workerId == 0 {
h := md5.New()
io.WriteString(h, hostname)
*workerId = int64(crc32.ChecksumIEEE(h.Sum(nil)) % 1024)
}
tcpAddr, err := net.ResolveTCPAddr("tcp", *tcpAddress)
if err != nil {
log.Fatal(err)
}
httpAddr, err := net.ResolveTCPAddr("tcp", *httpAddress)
if err != nil {
log.Fatal(err)
}
if *broadcastAddress == "" {
*broadcastAddress = hostname
}
log.Println(util.Version("nsqd"))
log.Printf("worker id %d", *workerId)
exitChan := make(chan int)
signalChan := make(chan os.Signal, 1)
go func() {
<-signalChan
exitChan <- 1
}()
signal.Notify(signalChan, syscall.SIGINT, syscall.SIGTERM)
// flagToDuration will fatally error if it is invalid
msgTimeoutDuration := flagToDuration(*msgTimeout, time.Millisecond, "--msg-timeout")
if *maxDeflateLevel < 1 || *maxDeflateLevel > 9 {
log.Fatalf("--max-deflate-level must be [1,9]")
}
options := NewNsqdOptions()
options.maxRdyCount = *maxRdyCount
options.maxMessageSize = *maxMessageSize
options.maxBodySize = *maxBodySize
options.memQueueSize = *memQueueSize
options.dataPath = *dataPath
options.maxBytesPerFile = *maxBytesPerFile
options.syncEvery = *syncEvery
options.syncTimeout = *syncTimeout
options.msgTimeout = msgTimeoutDuration
options.maxMsgTimeout = *maxMsgTimeout
options.broadcastAddress = *broadcastAddress
options.maxHeartbeatInterval = *maxHeartbeatInterval
options.maxOutputBufferSize = *maxOutputBufferSize
options.maxOutputBufferTimeout = *maxOutputBufferTimeout
options.tlsCert = *tlsCert
options.tlsKey = *tlsKey
options.deflateEnabled = *deflateEnabled
options.maxDeflateLevel = *maxDeflateLevel
options.snappyEnabled = *snappyEnabled
options.e2eProcessingLatencyWindowTime = *e2eProcessingLatencyWindowTime
options.e2eProcessingLatencyPercentiles = e2eProcessingLatencyPercentiles
if *statsdAddress != "" {
// flagToDuration will fatally error if it is invalid
options.statsdInterval = flagToDuration(*statsdInterval, time.Second, "--statsd-interval")
statsdHostKey := util.StatsdHostKey(net.JoinHostPort(*broadcastAddress, strconv.Itoa(httpAddr.Port)))
prefixWithHost := strings.Replace(*statsdPrefix, "%s", statsdHostKey, -1)
if prefixWithHost[len(prefixWithHost)-1] != '.' {
prefixWithHost += "."
}
options.statsdPrefix = prefixWithHost
options.statsdAddress = *statsdAddress
}
nsqd := NewNSQd(*workerId, options)
nsqd.tcpAddr = tcpAddr
nsqd.httpAddr = httpAddr
nsqd.lookupdTCPAddrs = lookupdTCPAddrs
// Set the random seed
rand.Seed(time.Now().UTC().UnixNano())
nsqd.LoadMetadata()
err = nsqd.PersistMetadata()
if err != nil {
log.Fatalf("ERROR: failed to persist metadata - %s", err.Error())
}
nsqd.Main()
<-exitChan
nsqd.Exit()
}