382 lines
12 KiB
Go
382 lines
12 KiB
Go
package quic
|
|
|
|
import (
|
|
"sync"
|
|
|
|
"github.com/lucas-clemente/quic-go/logging"
|
|
"github.com/prometheus/client_golang/prometheus"
|
|
)
|
|
|
|
const (
|
|
namespace = "quic"
|
|
)
|
|
|
|
var (
|
|
clientConnLabels = []string{"conn_index"}
|
|
clientMetrics = struct {
|
|
totalConnections prometheus.Counter
|
|
closedConnections *prometheus.CounterVec
|
|
sentPackets *prometheus.CounterVec
|
|
sentBytes *prometheus.CounterVec
|
|
receivePackets *prometheus.CounterVec
|
|
receiveBytes *prometheus.CounterVec
|
|
bufferedPackets *prometheus.CounterVec
|
|
droppedPackets *prometheus.CounterVec
|
|
lostPackets *prometheus.CounterVec
|
|
minRTT *prometheus.GaugeVec
|
|
latestRTT *prometheus.GaugeVec
|
|
smoothedRTT *prometheus.GaugeVec
|
|
}{
|
|
totalConnections: prometheus.NewCounter(
|
|
totalConnectionsOpts(logging.PerspectiveClient),
|
|
),
|
|
closedConnections: prometheus.NewCounterVec(
|
|
closedConnectionsOpts(logging.PerspectiveClient),
|
|
[]string{"error"},
|
|
),
|
|
sentPackets: prometheus.NewCounterVec(
|
|
sentPacketsOpts(logging.PerspectiveClient),
|
|
clientConnLabels,
|
|
),
|
|
sentBytes: prometheus.NewCounterVec(
|
|
sentBytesOpts(logging.PerspectiveClient),
|
|
clientConnLabels,
|
|
),
|
|
receivePackets: prometheus.NewCounterVec(
|
|
receivePacketsOpts(logging.PerspectiveClient),
|
|
clientConnLabels,
|
|
),
|
|
receiveBytes: prometheus.NewCounterVec(
|
|
receiveBytesOpts(logging.PerspectiveClient),
|
|
clientConnLabels,
|
|
),
|
|
bufferedPackets: prometheus.NewCounterVec(
|
|
bufferedPacketsOpts(logging.PerspectiveClient),
|
|
append(clientConnLabels, "packet_type"),
|
|
),
|
|
droppedPackets: prometheus.NewCounterVec(
|
|
droppedPacketsOpts(logging.PerspectiveClient),
|
|
append(clientConnLabels, "packet_type", "reason"),
|
|
),
|
|
lostPackets: prometheus.NewCounterVec(
|
|
lostPacketsOpts(logging.PerspectiveClient),
|
|
append(clientConnLabels, "reason"),
|
|
),
|
|
minRTT: prometheus.NewGaugeVec(
|
|
prometheus.GaugeOpts{
|
|
Namespace: namespace,
|
|
Subsystem: perspectiveString(logging.PerspectiveClient),
|
|
Name: "min_rtt",
|
|
Help: "Lowest RTT measured on a connection in millisec",
|
|
},
|
|
clientConnLabels,
|
|
),
|
|
latestRTT: prometheus.NewGaugeVec(
|
|
prometheus.GaugeOpts{
|
|
Namespace: namespace,
|
|
Subsystem: perspectiveString(logging.PerspectiveClient),
|
|
Name: "latest_rtt",
|
|
Help: "Latest RTT measured on a connection",
|
|
},
|
|
clientConnLabels,
|
|
),
|
|
smoothedRTT: prometheus.NewGaugeVec(
|
|
prometheus.GaugeOpts{
|
|
Namespace: namespace,
|
|
Subsystem: perspectiveString(logging.PerspectiveClient),
|
|
Name: "smoothed_rtt",
|
|
Help: "Calculated smoothed RTT measured on a connection in millisec",
|
|
},
|
|
clientConnLabels,
|
|
),
|
|
}
|
|
// The server has many QUIC connections. Adding per connection label incurs high memory cost
|
|
serverMetrics = struct {
|
|
totalConnections prometheus.Counter
|
|
closedConnections prometheus.Counter
|
|
sentPackets prometheus.Counter
|
|
sentBytes prometheus.Counter
|
|
receivePackets prometheus.Counter
|
|
receiveBytes prometheus.Counter
|
|
bufferedPackets *prometheus.CounterVec
|
|
droppedPackets *prometheus.CounterVec
|
|
lostPackets *prometheus.CounterVec
|
|
rtt prometheus.Histogram
|
|
}{
|
|
totalConnections: prometheus.NewCounter(
|
|
totalConnectionsOpts(logging.PerspectiveServer),
|
|
),
|
|
closedConnections: prometheus.NewCounter(
|
|
closedConnectionsOpts(logging.PerspectiveServer),
|
|
),
|
|
sentPackets: prometheus.NewCounter(
|
|
sentPacketsOpts(logging.PerspectiveServer),
|
|
),
|
|
sentBytes: prometheus.NewCounter(
|
|
sentBytesOpts(logging.PerspectiveServer),
|
|
),
|
|
receivePackets: prometheus.NewCounter(
|
|
receivePacketsOpts(logging.PerspectiveServer),
|
|
),
|
|
receiveBytes: prometheus.NewCounter(
|
|
receiveBytesOpts(logging.PerspectiveServer),
|
|
),
|
|
bufferedPackets: prometheus.NewCounterVec(
|
|
bufferedPacketsOpts(logging.PerspectiveServer),
|
|
[]string{"packet_type"},
|
|
),
|
|
droppedPackets: prometheus.NewCounterVec(
|
|
droppedPacketsOpts(logging.PerspectiveServer),
|
|
[]string{"packet_type", "reason"},
|
|
),
|
|
lostPackets: prometheus.NewCounterVec(
|
|
lostPacketsOpts(logging.PerspectiveServer),
|
|
[]string{"reason"},
|
|
),
|
|
rtt: prometheus.NewHistogram(
|
|
prometheus.HistogramOpts{
|
|
Namespace: namespace,
|
|
Subsystem: perspectiveString(logging.PerspectiveServer),
|
|
Name: "rtt",
|
|
Buckets: []float64{5, 10, 20, 30, 40, 50, 75, 100},
|
|
},
|
|
),
|
|
}
|
|
registerClient = sync.Once{}
|
|
registerServer = sync.Once{}
|
|
|
|
packetTooBigDropped = prometheus.NewCounter(prometheus.CounterOpts{
|
|
Namespace: namespace,
|
|
Subsystem: perspectiveString(logging.PerspectiveClient),
|
|
Name: "packet_too_big_dropped",
|
|
Help: "Count of packets received from origin that are too big to send to the edge and are dropped as a result",
|
|
})
|
|
)
|
|
|
|
// MetricsCollector abstracts the difference between client and server metrics from connTracer
|
|
type MetricsCollector interface {
|
|
startedConnection()
|
|
closedConnection(err error)
|
|
sentPackets(logging.ByteCount)
|
|
receivedPackets(logging.ByteCount)
|
|
bufferedPackets(logging.PacketType)
|
|
droppedPackets(logging.PacketType, logging.ByteCount, logging.PacketDropReason)
|
|
lostPackets(logging.PacketLossReason)
|
|
updatedRTT(*logging.RTTStats)
|
|
}
|
|
|
|
func totalConnectionsOpts(p logging.Perspective) prometheus.CounterOpts {
|
|
var help string
|
|
if p == logging.PerspectiveClient {
|
|
help = "Number of connections initiated. For all quic metrics, client means the side initiating the connection"
|
|
} else {
|
|
help = "Number of connections accepted. For all quic metrics, server means the side accepting connections"
|
|
}
|
|
return prometheus.CounterOpts{
|
|
Namespace: namespace,
|
|
Subsystem: perspectiveString(p),
|
|
Name: "total_connections",
|
|
Help: help,
|
|
}
|
|
}
|
|
|
|
func closedConnectionsOpts(p logging.Perspective) prometheus.CounterOpts {
|
|
return prometheus.CounterOpts{
|
|
Namespace: namespace,
|
|
Subsystem: perspectiveString(p),
|
|
Name: "closed_connections",
|
|
Help: "Number of connections that has been closed",
|
|
}
|
|
}
|
|
|
|
func sentPacketsOpts(p logging.Perspective) prometheus.CounterOpts {
|
|
return prometheus.CounterOpts{
|
|
Namespace: namespace,
|
|
Subsystem: perspectiveString(p),
|
|
Name: "sent_packets",
|
|
Help: "Number of packets that have been sent through a connection",
|
|
}
|
|
}
|
|
|
|
func sentBytesOpts(p logging.Perspective) prometheus.CounterOpts {
|
|
return prometheus.CounterOpts{
|
|
Namespace: namespace,
|
|
Subsystem: perspectiveString(p),
|
|
Name: "sent_bytes",
|
|
Help: "Number of bytes that have been sent through a connection",
|
|
}
|
|
}
|
|
|
|
func receivePacketsOpts(p logging.Perspective) prometheus.CounterOpts {
|
|
return prometheus.CounterOpts{
|
|
Namespace: namespace,
|
|
Subsystem: perspectiveString(p),
|
|
Name: "receive_packets",
|
|
Help: "Number of packets that have been received through a connection",
|
|
}
|
|
}
|
|
|
|
func receiveBytesOpts(p logging.Perspective) prometheus.CounterOpts {
|
|
return prometheus.CounterOpts{
|
|
Namespace: namespace,
|
|
Subsystem: perspectiveString(p),
|
|
Name: "receive_bytes",
|
|
Help: "Number of bytes that have been received through a connection",
|
|
}
|
|
}
|
|
|
|
func bufferedPacketsOpts(p logging.Perspective) prometheus.CounterOpts {
|
|
return prometheus.CounterOpts{
|
|
Namespace: namespace,
|
|
Subsystem: perspectiveString(p),
|
|
Name: "buffered_packets",
|
|
Help: "Number of bytes that have been buffered on a connection",
|
|
}
|
|
}
|
|
|
|
func droppedPacketsOpts(p logging.Perspective) prometheus.CounterOpts {
|
|
return prometheus.CounterOpts{
|
|
Namespace: namespace,
|
|
Subsystem: perspectiveString(p),
|
|
Name: "dropped_packets",
|
|
Help: "Number of bytes that have been dropped on a connection",
|
|
}
|
|
}
|
|
|
|
func lostPacketsOpts(p logging.Perspective) prometheus.CounterOpts {
|
|
return prometheus.CounterOpts{
|
|
Namespace: namespace,
|
|
Subsystem: perspectiveString(p),
|
|
Name: "lost_packets",
|
|
Help: "Number of packets that have been lost from a connection",
|
|
}
|
|
}
|
|
|
|
type clientCollector struct {
|
|
index string
|
|
}
|
|
|
|
func newClientCollector(index uint8) MetricsCollector {
|
|
registerClient.Do(func() {
|
|
prometheus.MustRegister(
|
|
clientMetrics.totalConnections,
|
|
clientMetrics.closedConnections,
|
|
clientMetrics.sentPackets,
|
|
clientMetrics.sentBytes,
|
|
clientMetrics.receivePackets,
|
|
clientMetrics.receiveBytes,
|
|
clientMetrics.bufferedPackets,
|
|
clientMetrics.droppedPackets,
|
|
clientMetrics.lostPackets,
|
|
clientMetrics.minRTT,
|
|
clientMetrics.latestRTT,
|
|
clientMetrics.smoothedRTT,
|
|
packetTooBigDropped,
|
|
)
|
|
})
|
|
return &clientCollector{
|
|
index: uint8ToString(index),
|
|
}
|
|
}
|
|
|
|
func (cc *clientCollector) startedConnection() {
|
|
clientMetrics.totalConnections.Inc()
|
|
}
|
|
|
|
func (cc *clientCollector) closedConnection(err error) {
|
|
clientMetrics.closedConnections.WithLabelValues(err.Error()).Inc()
|
|
}
|
|
|
|
func (cc *clientCollector) sentPackets(size logging.ByteCount) {
|
|
clientMetrics.sentPackets.WithLabelValues(cc.index).Inc()
|
|
clientMetrics.sentBytes.WithLabelValues(cc.index).Add(byteCountToPromCount(size))
|
|
}
|
|
|
|
func (cc *clientCollector) receivedPackets(size logging.ByteCount) {
|
|
clientMetrics.receivePackets.WithLabelValues(cc.index).Inc()
|
|
clientMetrics.receiveBytes.WithLabelValues(cc.index).Add(byteCountToPromCount(size))
|
|
}
|
|
|
|
func (cc *clientCollector) bufferedPackets(packetType logging.PacketType) {
|
|
clientMetrics.bufferedPackets.WithLabelValues(cc.index, packetTypeString(packetType)).Inc()
|
|
}
|
|
|
|
func (cc *clientCollector) droppedPackets(packetType logging.PacketType, size logging.ByteCount, reason logging.PacketDropReason) {
|
|
clientMetrics.droppedPackets.WithLabelValues(
|
|
cc.index,
|
|
packetTypeString(packetType),
|
|
packetDropReasonString(reason),
|
|
).Add(byteCountToPromCount(size))
|
|
}
|
|
|
|
func (cc *clientCollector) lostPackets(reason logging.PacketLossReason) {
|
|
clientMetrics.lostPackets.WithLabelValues(cc.index, packetLossReasonString(reason)).Inc()
|
|
}
|
|
|
|
func (cc *clientCollector) updatedRTT(rtt *logging.RTTStats) {
|
|
clientMetrics.minRTT.WithLabelValues(cc.index).Set(durationToPromGauge(rtt.MinRTT()))
|
|
clientMetrics.latestRTT.WithLabelValues(cc.index).Set(durationToPromGauge(rtt.LatestRTT()))
|
|
clientMetrics.smoothedRTT.WithLabelValues(cc.index).Set(durationToPromGauge(rtt.SmoothedRTT()))
|
|
}
|
|
|
|
type serverCollector struct{}
|
|
|
|
func newServiceCollector() MetricsCollector {
|
|
registerServer.Do(func() {
|
|
prometheus.MustRegister(
|
|
serverMetrics.totalConnections,
|
|
serverMetrics.closedConnections,
|
|
serverMetrics.sentPackets,
|
|
serverMetrics.sentBytes,
|
|
serverMetrics.receivePackets,
|
|
serverMetrics.receiveBytes,
|
|
serverMetrics.bufferedPackets,
|
|
serverMetrics.droppedPackets,
|
|
serverMetrics.lostPackets,
|
|
serverMetrics.rtt,
|
|
)
|
|
})
|
|
return &serverCollector{}
|
|
}
|
|
|
|
func (sc *serverCollector) startedConnection() {
|
|
serverMetrics.totalConnections.Inc()
|
|
}
|
|
|
|
func (sc *serverCollector) closedConnection(err error) {
|
|
serverMetrics.closedConnections.Inc()
|
|
}
|
|
|
|
func (sc *serverCollector) sentPackets(size logging.ByteCount) {
|
|
serverMetrics.sentPackets.Inc()
|
|
serverMetrics.sentBytes.Add(byteCountToPromCount(size))
|
|
}
|
|
|
|
func (sc *serverCollector) receivedPackets(size logging.ByteCount) {
|
|
serverMetrics.receivePackets.Inc()
|
|
serverMetrics.receiveBytes.Add(byteCountToPromCount(size))
|
|
}
|
|
|
|
func (sc *serverCollector) bufferedPackets(packetType logging.PacketType) {
|
|
serverMetrics.bufferedPackets.WithLabelValues(packetTypeString(packetType)).Inc()
|
|
}
|
|
|
|
func (sc *serverCollector) droppedPackets(packetType logging.PacketType, size logging.ByteCount, reason logging.PacketDropReason) {
|
|
serverMetrics.droppedPackets.WithLabelValues(
|
|
packetTypeString(packetType),
|
|
packetDropReasonString(reason),
|
|
).Add(byteCountToPromCount(size))
|
|
}
|
|
|
|
func (sc *serverCollector) lostPackets(reason logging.PacketLossReason) {
|
|
serverMetrics.lostPackets.WithLabelValues(packetLossReasonString(reason)).Inc()
|
|
}
|
|
|
|
func (sc *serverCollector) updatedRTT(rtt *logging.RTTStats) {
|
|
latestRTT := rtt.LatestRTT()
|
|
// May return 0 if no valid updates have occurred
|
|
if latestRTT > 0 {
|
|
serverMetrics.rtt.Observe(durationToPromGauge(latestRTT))
|
|
}
|
|
}
|