ceremonyclient/go-libp2p/p2p/host/autorelay/metrics.go

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2023-08-21 03:50:38 +00:00
package autorelay
import (
"errors"
"github.com/libp2p/go-libp2p/p2p/metricshelper"
"github.com/libp2p/go-libp2p/p2p/protocol/circuitv2/client"
pbv2 "github.com/libp2p/go-libp2p/p2p/protocol/circuitv2/pb"
"github.com/prometheus/client_golang/prometheus"
)
const metricNamespace = "libp2p_autorelay"
var (
status = prometheus.NewGauge(prometheus.GaugeOpts{
Namespace: metricNamespace,
Name: "status",
Help: "relay finder active",
})
reservationsOpenedTotal = prometheus.NewCounter(
prometheus.CounterOpts{
Namespace: metricNamespace,
Name: "reservations_opened_total",
Help: "Reservations Opened",
},
)
reservationsClosedTotal = prometheus.NewCounter(
prometheus.CounterOpts{
Namespace: metricNamespace,
Name: "reservations_closed_total",
Help: "Reservations Closed",
},
)
reservationRequestsOutcomeTotal = prometheus.NewCounterVec(
prometheus.CounterOpts{
Namespace: metricNamespace,
Name: "reservation_requests_outcome_total",
Help: "Reservation Request Outcome",
},
[]string{"request_type", "outcome"},
)
relayAddressesUpdatedTotal = prometheus.NewCounter(
prometheus.CounterOpts{
Namespace: metricNamespace,
Name: "relay_addresses_updated_total",
Help: "Relay Addresses Updated Count",
},
)
relayAddressesCount = prometheus.NewGauge(
prometheus.GaugeOpts{
Namespace: metricNamespace,
Name: "relay_addresses_count",
Help: "Relay Addresses Count",
},
)
candidatesCircuitV2SupportTotal = prometheus.NewCounterVec(
prometheus.CounterOpts{
Namespace: metricNamespace,
Name: "candidates_circuit_v2_support_total",
Help: "Candidiates supporting circuit v2",
},
[]string{"support"},
)
candidatesTotal = prometheus.NewCounterVec(
prometheus.CounterOpts{
Namespace: metricNamespace,
Name: "candidates_total",
Help: "Candidates Total",
},
[]string{"type"},
)
candLoopState = prometheus.NewGauge(
prometheus.GaugeOpts{
Namespace: metricNamespace,
Name: "candidate_loop_state",
Help: "Candidate Loop State",
},
)
scheduledWorkTime = prometheus.NewGaugeVec(
prometheus.GaugeOpts{
Namespace: metricNamespace,
Name: "scheduled_work_time",
Help: "Scheduled Work Times",
},
[]string{"work_type"},
)
desiredReservations = prometheus.NewGauge(
prometheus.GaugeOpts{
Namespace: metricNamespace,
Name: "desired_reservations",
Help: "Desired Reservations",
},
)
collectors = []prometheus.Collector{
status,
reservationsOpenedTotal,
reservationsClosedTotal,
reservationRequestsOutcomeTotal,
relayAddressesUpdatedTotal,
relayAddressesCount,
candidatesCircuitV2SupportTotal,
candidatesTotal,
candLoopState,
scheduledWorkTime,
desiredReservations,
}
)
type candidateLoopState int
const (
peerSourceRateLimited candidateLoopState = iota
waitingOnPeerChan
waitingForTrigger
stopped
)
// MetricsTracer is the interface for tracking metrics for autorelay
type MetricsTracer interface {
RelayFinderStatus(isActive bool)
ReservationEnded(cnt int)
ReservationOpened(cnt int)
ReservationRequestFinished(isRefresh bool, err error)
RelayAddressCount(int)
RelayAddressUpdated()
CandidateChecked(supportsCircuitV2 bool)
CandidateAdded(cnt int)
CandidateRemoved(cnt int)
CandidateLoopState(state candidateLoopState)
ScheduledWorkUpdated(scheduledWork *scheduledWorkTimes)
DesiredReservations(int)
}
type metricsTracer struct{}
var _ MetricsTracer = &metricsTracer{}
type metricsTracerSetting struct {
reg prometheus.Registerer
}
type MetricsTracerOption func(*metricsTracerSetting)
func WithRegisterer(reg prometheus.Registerer) MetricsTracerOption {
return func(s *metricsTracerSetting) {
if reg != nil {
s.reg = reg
}
}
}
func NewMetricsTracer(opts ...MetricsTracerOption) MetricsTracer {
setting := &metricsTracerSetting{reg: prometheus.DefaultRegisterer}
for _, opt := range opts {
opt(setting)
}
metricshelper.RegisterCollectors(setting.reg, collectors...)
// Initialise these counters to 0 otherwise the first reservation requests aren't handled
// correctly when using promql increse function
reservationRequestsOutcomeTotal.WithLabelValues("refresh", "success")
reservationRequestsOutcomeTotal.WithLabelValues("new", "success")
candidatesCircuitV2SupportTotal.WithLabelValues("yes")
candidatesCircuitV2SupportTotal.WithLabelValues("no")
return &metricsTracer{}
}
func (mt *metricsTracer) RelayFinderStatus(isActive bool) {
if isActive {
status.Set(1)
} else {
status.Set(0)
}
}
func (mt *metricsTracer) ReservationEnded(cnt int) {
reservationsClosedTotal.Add(float64(cnt))
}
func (mt *metricsTracer) ReservationOpened(cnt int) {
reservationsOpenedTotal.Add(float64(cnt))
}
func (mt *metricsTracer) ReservationRequestFinished(isRefresh bool, err error) {
tags := metricshelper.GetStringSlice()
defer metricshelper.PutStringSlice(tags)
if isRefresh {
*tags = append(*tags, "refresh")
} else {
*tags = append(*tags, "new")
}
*tags = append(*tags, getReservationRequestStatus(err))
reservationRequestsOutcomeTotal.WithLabelValues(*tags...).Inc()
if !isRefresh && err == nil {
reservationsOpenedTotal.Inc()
}
}
func (mt *metricsTracer) RelayAddressUpdated() {
relayAddressesUpdatedTotal.Inc()
}
func (mt *metricsTracer) RelayAddressCount(cnt int) {
relayAddressesCount.Set(float64(cnt))
}
func (mt *metricsTracer) CandidateChecked(supportsCircuitV2 bool) {
tags := metricshelper.GetStringSlice()
defer metricshelper.PutStringSlice(tags)
if supportsCircuitV2 {
*tags = append(*tags, "yes")
} else {
*tags = append(*tags, "no")
}
candidatesCircuitV2SupportTotal.WithLabelValues(*tags...).Inc()
}
func (mt *metricsTracer) CandidateAdded(cnt int) {
tags := metricshelper.GetStringSlice()
defer metricshelper.PutStringSlice(tags)
*tags = append(*tags, "added")
candidatesTotal.WithLabelValues(*tags...).Add(float64(cnt))
}
func (mt *metricsTracer) CandidateRemoved(cnt int) {
tags := metricshelper.GetStringSlice()
defer metricshelper.PutStringSlice(tags)
*tags = append(*tags, "removed")
candidatesTotal.WithLabelValues(*tags...).Add(float64(cnt))
}
func (mt *metricsTracer) CandidateLoopState(state candidateLoopState) {
candLoopState.Set(float64(state))
}
func (mt *metricsTracer) ScheduledWorkUpdated(scheduledWork *scheduledWorkTimes) {
tags := metricshelper.GetStringSlice()
defer metricshelper.PutStringSlice(tags)
*tags = append(*tags, "allowed peer source call")
scheduledWorkTime.WithLabelValues(*tags...).Set(float64(scheduledWork.nextAllowedCallToPeerSource.Unix()))
*tags = (*tags)[:0]
*tags = append(*tags, "reservation refresh")
scheduledWorkTime.WithLabelValues(*tags...).Set(float64(scheduledWork.nextRefresh.Unix()))
*tags = (*tags)[:0]
*tags = append(*tags, "clear backoff")
scheduledWorkTime.WithLabelValues(*tags...).Set(float64(scheduledWork.nextBackoff.Unix()))
*tags = (*tags)[:0]
*tags = append(*tags, "old candidate check")
scheduledWorkTime.WithLabelValues(*tags...).Set(float64(scheduledWork.nextOldCandidateCheck.Unix()))
}
func (mt *metricsTracer) DesiredReservations(cnt int) {
desiredReservations.Set(float64(cnt))
}
func getReservationRequestStatus(err error) string {
if err == nil {
return "success"
}
status := "err other"
var re client.ReservationError
if errors.As(err, &re) {
switch re.Status {
case pbv2.Status_CONNECTION_FAILED:
return "connection failed"
case pbv2.Status_MALFORMED_MESSAGE:
return "malformed message"
case pbv2.Status_RESERVATION_REFUSED:
return "reservation refused"
case pbv2.Status_PERMISSION_DENIED:
return "permission denied"
case pbv2.Status_RESOURCE_LIMIT_EXCEEDED:
return "resource limit exceeded"
}
}
return status
}
// wrappedMetricsTracer wraps MetricsTracer and ignores all calls when mt is nil
type wrappedMetricsTracer struct {
mt MetricsTracer
}
var _ MetricsTracer = &wrappedMetricsTracer{}
func (mt *wrappedMetricsTracer) RelayFinderStatus(isActive bool) {
if mt.mt != nil {
mt.mt.RelayFinderStatus(isActive)
}
}
func (mt *wrappedMetricsTracer) ReservationEnded(cnt int) {
if mt.mt != nil {
mt.mt.ReservationEnded(cnt)
}
}
func (mt *wrappedMetricsTracer) ReservationOpened(cnt int) {
if mt.mt != nil {
mt.mt.ReservationOpened(cnt)
}
}
func (mt *wrappedMetricsTracer) ReservationRequestFinished(isRefresh bool, err error) {
if mt.mt != nil {
mt.mt.ReservationRequestFinished(isRefresh, err)
}
}
func (mt *wrappedMetricsTracer) RelayAddressUpdated() {
if mt.mt != nil {
mt.mt.RelayAddressUpdated()
}
}
func (mt *wrappedMetricsTracer) RelayAddressCount(cnt int) {
if mt.mt != nil {
mt.mt.RelayAddressCount(cnt)
}
}
func (mt *wrappedMetricsTracer) CandidateChecked(supportsCircuitV2 bool) {
if mt.mt != nil {
mt.mt.CandidateChecked(supportsCircuitV2)
}
}
func (mt *wrappedMetricsTracer) CandidateAdded(cnt int) {
if mt.mt != nil {
mt.mt.CandidateAdded(cnt)
}
}
func (mt *wrappedMetricsTracer) CandidateRemoved(cnt int) {
if mt.mt != nil {
mt.mt.CandidateRemoved(cnt)
}
}
func (mt *wrappedMetricsTracer) ScheduledWorkUpdated(scheduledWork *scheduledWorkTimes) {
if mt.mt != nil {
mt.mt.ScheduledWorkUpdated(scheduledWork)
}
}
func (mt *wrappedMetricsTracer) DesiredReservations(cnt int) {
if mt.mt != nil {
mt.mt.DesiredReservations(cnt)
}
}
func (mt *wrappedMetricsTracer) CandidateLoopState(state candidateLoopState) {
if mt.mt != nil {
mt.mt.CandidateLoopState(state)
}
}