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@@ -5,23 +5,74 @@ import (
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"net"
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"strconv"
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"strings"
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+ "sync"
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+ "time"
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10
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- "gopkg.in/alexcesaro/statsd.v2"
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+ statsd "github.com/smira/go-statsd"
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+ "go.uber.org/zap"
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10
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"mtg/config"
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"mtg/conntypes"
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)
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+var (
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+ tagTrafficIngress = &statsStatsdTag{
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+ name: "ingress",
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+ tag: statsd.StringTag("type", "ingress"),
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+ }
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+ tagTrafficEgress = &statsStatsdTag{
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+ name: "egress",
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+ tag: statsd.StringTag("type", "egress"),
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+ }
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+
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+ tagConnectionTypeAbridged = &statsStatsdTag{
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+ name: "abridged",
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+ tag: statsd.StringTag("type", "abridged"),
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+ }
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+ tagConnectionTypeIntermediate = &statsStatsdTag{
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+ name: "intermediate",
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+ tag: statsd.StringTag("type", "intermediate"),
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+ }
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+ tagConnectionTypeSecured = &statsStatsdTag{
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+ name: "secured",
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+ tag: statsd.StringTag("type", "secured"),
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+ }
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+
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+ tagConnectionProtocol4 = &statsStatsdTag{
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+ name: "ipv4",
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+ tag: statsd.StringTag("protocol", "ipv4"),
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+ }
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+ tagConnectionProtocol6 = &statsStatsdTag{
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+ name: "ipv6",
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+ tag: statsd.StringTag("protocol", "ipv6"),
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+ }
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+)
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+
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+type statsStatsdTag struct {
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+ tag statsd.Tag
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+ name string
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+}
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+
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+type statsStatsdLogger struct {
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+ log *zap.SugaredLogger
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+}
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+
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+func (s *statsStatsdLogger) Printf(msg string, args ...interface{}) {
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+ s.log.Debugw(fmt.Sprintf(msg, args...))
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+}
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+
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type statsStatsd struct {
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- client *statsd.Client
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+ seen map[string]struct{}
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+ seenMutex sync.RWMutex
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+ client *statsd.Client
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}
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69
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func (s *statsStatsd) IngressTraffic(traffic int) {
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- s.client.Count("traffic.ingress", traffic)
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+ s.gauge("traffic", int64(traffic), tagTrafficIngress)
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}
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func (s *statsStatsd) EgressTraffic(traffic int) {
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- s.client.Count("traffic.egress", traffic)
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+ s.gauge("traffic", int64(traffic), tagTrafficEgress)
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}
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func (s *statsStatsd) ClientConnected(connectionType conntypes.ConnectionType, addr *net.TCPAddr) {
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@@ -32,25 +83,25 @@ func (s *statsStatsd) ClientDisconnected(connectionType conntypes.ConnectionType
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s.changeConnections(connectionType, addr, -1)
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}
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85
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-func (s *statsStatsd) changeConnections(connectionType conntypes.ConnectionType, addr *net.TCPAddr, value int) {
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- labels := [...]string{
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- "connections",
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- "intermediate",
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- "ipv4",
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- }
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+func (s *statsStatsd) changeConnections(connectionType conntypes.ConnectionType, addr *net.TCPAddr, increment int64) {
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+ tags := make([]*statsStatsdTag, 0, 2)
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88
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switch connectionType {
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case conntypes.ConnectionTypeAbridged:
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- labels[1] = "abridged"
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- case conntypes.ConnectionTypeSecure:
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- labels[1] = "secured"
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+ tags = append(tags, tagConnectionTypeAbridged)
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+ case conntypes.ConnectionTypeIntermediate:
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+ tags = append(tags, tagConnectionTypeIntermediate)
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+ default:
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+ tags = append(tags, tagConnectionTypeSecured)
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}
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if addr.IP.To4() == nil {
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- labels[2] = "ipv6"
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+ tags = append(tags, tagConnectionProtocol6)
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+ } else {
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+ tags = append(tags, tagConnectionProtocol4)
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}
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103
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- s.client.Count(strings.Join(labels[:], "."), value)
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+ s.gauge("connections", increment, tags...)
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}
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106
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func (s *statsStatsd) TelegramConnected(dc conntypes.DC, addr *net.TCPAddr) {
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@@ -61,51 +112,83 @@ func (s *statsStatsd) TelegramDisconnected(dc conntypes.DC, addr *net.TCPAddr) {
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s.changeTelegramConnections(dc, addr, -1)
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}
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114
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-func (s *statsStatsd) changeTelegramConnections(dc conntypes.DC, addr *net.TCPAddr, value int) {
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- labels := [...]string{
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- "telegram_connections",
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- strconv.Itoa(int(dc)),
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- "ipv4",
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+func (s *statsStatsd) changeTelegramConnections(dc conntypes.DC, addr *net.TCPAddr, increment int64) {
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+ tags := []*statsStatsdTag{
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+ {
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+ name: "dc" + strconv.Itoa(int(dc)),
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+ tag: statsd.IntTag("dc", int(dc)),
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+ },
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}
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if addr.IP.To4() == nil {
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- labels[2] = "ipv6"
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+ tags = append(tags, tagConnectionProtocol6)
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+ } else {
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+ tags = append(tags, tagConnectionProtocol4)
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}
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- s.client.Count(strings.Join(labels[:], "."), value)
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+ s.gauge("telegram_connections", increment, tags...)
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}
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func (s *statsStatsd) Crash() {
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- s.client.Increment("crashes")
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+ s.gauge("crashes", 1)
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}
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func (s *statsStatsd) ReplayDetected() {
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- s.client.Increment("replay_attacks")
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+ s.gauge("replay_attacks", 1)
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+}
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+
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+func (s *statsStatsd) gauge(metric string, value int64, tags ...*statsStatsdTag) {
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+ key, tagList := s.prepareVals(metric, tags)
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+ s.initGauge(metric, key, tagList)
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+ s.client.GaugeDelta(metric, value, tagList...)
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+}
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+
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+func (s *statsStatsd) prepareVals(metric string, tags []*statsStatsdTag) (string, []statsd.Tag) {
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+ tagList := make([]statsd.Tag, len(tags))
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+ builder := strings.Builder{}
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+ builder.WriteString(metric)
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+
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+ for i, v := range tags {
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+ builder.WriteRune('.')
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+ builder.WriteString(v.name)
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+ tagList[i] = v.tag
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+ }
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+
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+ return builder.String(), tagList
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}
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159
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86
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-func newStatsStatsd() (Interface, error) {
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87
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- options := []statsd.Option{
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88
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- statsd.Prefix(config.C.StatsNamespace),
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- statsd.Network(config.C.StatsdNetwork),
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- statsd.Address(config.C.StatsdAddr.String()),
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- statsd.TagsFormat(config.C.StatsdTagsFormat),
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+func (s *statsStatsd) initGauge(metric, key string, tags []statsd.Tag) {
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+ s.seenMutex.RLock()
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+ _, ok := s.seen[key]
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+ s.seenMutex.RUnlock()
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+
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+ if ok {
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+ return
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}
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- if len(config.C.StatsdTags) > 0 {
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- tags := make([]string, len(config.C.StatsdTags)*2)
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- for k, v := range config.C.StatsdTags {
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- tags = append(tags, k, v)
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- }
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+ s.seenMutex.Lock()
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+ defer s.seenMutex.Unlock()
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171
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- options = append(options, statsd.Tags(tags...))
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+ if _, ok = s.seen[key]; !ok {
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+ s.seen[key] = struct{}{}
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+ s.client.Gauge(metric, 0, tags...)
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}
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+}
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177
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103
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- client, err := statsd.New(options...)
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- if err != nil {
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- return nil, fmt.Errorf("cannot initialize a client: %w", err)
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+func newStatsStatsd() Interface {
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+ prefix := strings.TrimSuffix(config.C.StatsNamespace, ".") + "."
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+ logger := &statsStatsdLogger{
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+ log: zap.S().Named("stats").Named("statsd"),
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}
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183
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return &statsStatsd{
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- client: client,
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- }, nil
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+ seen: make(map[string]struct{}),
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+ client: statsd.NewClient(config.C.StatsdAddr.String(),
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+ statsd.SendLoopCount(2),
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+ statsd.ReconnectInterval(10*time.Second),
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+ statsd.Logger(logger),
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+ statsd.MetricPrefix(prefix),
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+ statsd.TagStyle(config.C.StatsdTagsFormat),
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+ ),
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+ }
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111
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}
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