mirror of
https://github.com/prometheus/statsd_exporter.git
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Merge pull request #393 from prometheus/superq/relay_metrics
Add metrics to relay
This commit is contained in:
Ben Kochie
GitHub
commit
884a8c0a21
2 changed files with 48 additions and 42 deletions
63
main.go
63
main.go
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@ -26,6 +26,7 @@ import (
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"github.com/go-kit/log"
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"github.com/prometheus/client_golang/prometheus"
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"github.com/prometheus/client_golang/prometheus/promauto"
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"github.com/prometheus/client_golang/prometheus/promhttp"
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"github.com/prometheus/common/promlog"
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"github.com/prometheus/common/promlog/flag"
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@ -50,118 +51,118 @@ const (
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)
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var (
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eventStats = prometheus.NewCounterVec(
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eventStats = promauto.NewCounterVec(
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prometheus.CounterOpts{
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Name: "statsd_exporter_events_total",
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Help: "The total number of StatsD events seen.",
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},
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[]string{"type"},
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)
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eventsFlushed = prometheus.NewCounter(
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eventsFlushed = promauto.NewCounter(
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prometheus.CounterOpts{
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Name: "statsd_exporter_event_queue_flushed_total",
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Help: "Number of times events were flushed to exporter",
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},
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)
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eventsUnmapped = prometheus.NewCounter(
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eventsUnmapped = promauto.NewCounter(
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prometheus.CounterOpts{
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Name: "statsd_exporter_events_unmapped_total",
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Help: "The total number of StatsD events no mapping was found for.",
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})
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udpPackets = prometheus.NewCounter(
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udpPackets = promauto.NewCounter(
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prometheus.CounterOpts{
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Name: "statsd_exporter_udp_packets_total",
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Help: "The total number of StatsD packets received over UDP.",
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},
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)
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tcpConnections = prometheus.NewCounter(
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tcpConnections = promauto.NewCounter(
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prometheus.CounterOpts{
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Name: "statsd_exporter_tcp_connections_total",
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Help: "The total number of TCP connections handled.",
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},
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)
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tcpErrors = prometheus.NewCounter(
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tcpErrors = promauto.NewCounter(
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prometheus.CounterOpts{
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Name: "statsd_exporter_tcp_connection_errors_total",
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Help: "The number of errors encountered reading from TCP.",
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},
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)
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tcpLineTooLong = prometheus.NewCounter(
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tcpLineTooLong = promauto.NewCounter(
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prometheus.CounterOpts{
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Name: "statsd_exporter_tcp_too_long_lines_total",
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Help: "The number of lines discarded due to being too long.",
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},
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)
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unixgramPackets = prometheus.NewCounter(
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unixgramPackets = promauto.NewCounter(
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prometheus.CounterOpts{
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Name: "statsd_exporter_unixgram_packets_total",
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Help: "The total number of StatsD packets received over Unixgram.",
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},
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)
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linesReceived = prometheus.NewCounter(
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linesReceived = promauto.NewCounter(
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prometheus.CounterOpts{
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Name: "statsd_exporter_lines_total",
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Help: "The total number of StatsD lines received.",
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},
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)
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samplesReceived = prometheus.NewCounter(
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samplesReceived = promauto.NewCounter(
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prometheus.CounterOpts{
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Name: "statsd_exporter_samples_total",
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Help: "The total number of StatsD samples received.",
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},
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)
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sampleErrors = prometheus.NewCounterVec(
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sampleErrors = promauto.NewCounterVec(
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prometheus.CounterOpts{
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Name: "statsd_exporter_sample_errors_total",
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Help: "The total number of errors parsing StatsD samples.",
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},
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[]string{"reason"},
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)
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tagsReceived = prometheus.NewCounter(
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tagsReceived = promauto.NewCounter(
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prometheus.CounterOpts{
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Name: "statsd_exporter_tags_total",
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Help: "The total number of DogStatsD tags processed.",
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},
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)
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tagErrors = prometheus.NewCounter(
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tagErrors = promauto.NewCounter(
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prometheus.CounterOpts{
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Name: "statsd_exporter_tag_errors_total",
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Help: "The number of errors parsing DogStatsD tags.",
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},
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)
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configLoads = prometheus.NewCounterVec(
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configLoads = promauto.NewCounterVec(
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prometheus.CounterOpts{
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Name: "statsd_exporter_config_reloads_total",
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Help: "The number of configuration reloads.",
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},
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[]string{"outcome"},
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)
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mappingsCount = prometheus.NewGauge(prometheus.GaugeOpts{
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mappingsCount = promauto.NewGauge(prometheus.GaugeOpts{
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Name: "statsd_exporter_loaded_mappings",
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Help: "The current number of configured metric mappings.",
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})
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conflictingEventStats = prometheus.NewCounterVec(
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conflictingEventStats = promauto.NewCounterVec(
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prometheus.CounterOpts{
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Name: "statsd_exporter_events_conflict_total",
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Help: "The total number of StatsD events with conflicting names.",
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},
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[]string{"type"},
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)
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errorEventStats = prometheus.NewCounterVec(
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errorEventStats = promauto.NewCounterVec(
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prometheus.CounterOpts{
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Name: "statsd_exporter_events_error_total",
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Help: "The total number of StatsD events discarded due to errors.",
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},
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[]string{"reason"},
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)
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eventsActions = prometheus.NewCounterVec(
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eventsActions = promauto.NewCounterVec(
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prometheus.CounterOpts{
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Name: "statsd_exporter_events_actions_total",
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Help: "The total number of StatsD events by action.",
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},
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[]string{"action"},
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)
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metricsCount = prometheus.NewGaugeVec(
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metricsCount = promauto.NewGaugeVec(
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prometheus.GaugeOpts{
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Name: "statsd_exporter_metrics_total",
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Help: "The total number of metrics.",
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@ -170,29 +171,6 @@ var (
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)
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)
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func init() {
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prometheus.MustRegister(version.NewCollector("statsd_exporter"))
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prometheus.MustRegister(eventStats)
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prometheus.MustRegister(eventsFlushed)
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prometheus.MustRegister(eventsUnmapped)
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prometheus.MustRegister(udpPackets)
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prometheus.MustRegister(tcpConnections)
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prometheus.MustRegister(tcpErrors)
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prometheus.MustRegister(tcpLineTooLong)
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prometheus.MustRegister(unixgramPackets)
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prometheus.MustRegister(linesReceived)
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prometheus.MustRegister(samplesReceived)
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prometheus.MustRegister(sampleErrors)
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prometheus.MustRegister(tagsReceived)
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prometheus.MustRegister(tagErrors)
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prometheus.MustRegister(configLoads)
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prometheus.MustRegister(mappingsCount)
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prometheus.MustRegister(conflictingEventStats)
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prometheus.MustRegister(errorEventStats)
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prometheus.MustRegister(eventsActions)
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prometheus.MustRegister(metricsCount)
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}
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// uncheckedCollector wraps a Collector but its Describe method yields no Desc.
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// This allows incoming metrics to have inconsistent label sets
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type uncheckedCollector struct {
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@ -310,6 +288,7 @@ func main() {
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level.Error(logger).Log("msg", "failed to set log level", "error", err)
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os.Exit(1)
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}
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prometheus.MustRegister(version.NewCollector("statsd_exporter"))
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parser := line.NewParser()
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if *dogstatsdTagsEnabled {
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@ -22,6 +22,8 @@ import (
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"github.com/go-kit/log"
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"github.com/prometheus/client_golang/prometheus"
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"github.com/prometheus/client_golang/prometheus/promauto"
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"github.com/prometheus/statsd_exporter/pkg/level"
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)
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@ -31,8 +33,28 @@ type Relay struct {
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conn *net.UDPConn
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logger log.Logger
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packetLength uint
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packetsTotal prometheus.Counter
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longLinesTotal prometheus.Counter
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}
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var (
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relayPacketsTotal = promauto.NewCounterVec(
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prometheus.CounterOpts{
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Name: "statsd_exporter_relay_packets_total",
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Help: "The number of StatsD packets relayed.",
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},
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[]string{"target"},
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)
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relayLongLinesTotal = promauto.NewCounterVec(
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prometheus.CounterOpts{
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Name: "statsd_exporter_relay_long_lines_total",
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Help: "The number lines that were too long to relay.",
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},
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[]string{"target"},
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)
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)
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// NewRelay creates a statsd UDP relay. It can be used to send copies of statsd raw
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// lines to a separate service.
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func NewRelay(l log.Logger, target string, packetLength uint) (*Relay, error) {
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@ -53,6 +75,9 @@ func NewRelay(l log.Logger, target string, packetLength uint) (*Relay, error) {
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conn: conn,
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logger: l,
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packetLength: packetLength,
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packetsTotal: relayPacketsTotal.WithLabelValues(target),
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longLinesTotal: relayLongLinesTotal.WithLabelValues(target),
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}
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// Startup the UDP sender.
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@ -106,6 +131,7 @@ func (r *Relay) sendPacket(buf []byte) error {
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}
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level.Debug(r.logger).Log("msg", "Sending packet", "length", len(buf), "data", buf)
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_, err := r.conn.WriteToUDP(buf, r.addr)
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r.packetsTotal.Inc()
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return err
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}
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@ -118,6 +144,7 @@ func (r *Relay) RelayLine(l string) {
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}
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if lineLength > r.packetLength-1 {
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level.Warn(r.logger).Log("msg", "line too long, not relaying", "length", lineLength, "max", r.packetLength)
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r.longLinesTotal.Inc()
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return
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}
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level.Debug(r.logger).Log("msg", "Relaying line", "line", l)
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