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TUN-9322: Add metric for unsupported RPC commands for datagram v3

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Additionally adds support for the connection index as a label for the
datagram v3 specific tunnel metrics.

Closes TUN-9322
This commit is contained in:
Devin Carr
2025-05-13 16:11:09 +00:00
parent ce27840573
commit 02705c44b2
10 changed files with 133 additions and 96 deletions
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57
quic/metrics.go
View File

@@ -11,12 +11,15 @@ import (
)
const (
namespace = "quic"
namespace = "quic"
ConnectionIndexMetricLabel = "conn_index"
frameTypeMetricLabel = "frame_type"
packetTypeMetricLabel = "packet_type"
reasonMetricLabel = "reason"
)
var (
clientConnLabels = []string{"conn_index"}
clientMetrics = struct {
clientMetrics = struct {
totalConnections prometheus.Counter
closedConnections prometheus.Counter
maxUDPPayloadSize *prometheus.GaugeVec
@@ -35,7 +38,7 @@ var (
congestionState *prometheus.GaugeVec
}{
totalConnections: prometheus.NewCounter(
prometheus.CounterOpts{
prometheus.CounterOpts{ //nolint:promlinter
Namespace: namespace,
Subsystem: "client",
Name: "total_connections",
@@ -43,7 +46,7 @@ var (
},
),
closedConnections: prometheus.NewCounter(
prometheus.CounterOpts{
prometheus.CounterOpts{ //nolint:promlinter
Namespace: namespace,
Subsystem: "client",
Name: "closed_connections",
@@ -57,70 +60,70 @@ var (
Name: "max_udp_payload",
Help: "Maximum UDP payload size in bytes for a QUIC packet",
},
clientConnLabels,
[]string{ConnectionIndexMetricLabel},
),
sentFrames: prometheus.NewCounterVec(
prometheus.CounterOpts{
prometheus.CounterOpts{ //nolint:promlinter
Namespace: namespace,
Subsystem: "client",
Name: "sent_frames",
Help: "Number of frames that have been sent through a connection",
},
append(clientConnLabels, "frame_type"),
[]string{ConnectionIndexMetricLabel, frameTypeMetricLabel},
),
sentBytes: prometheus.NewCounterVec(
prometheus.CounterOpts{
prometheus.CounterOpts{ //nolint:promlinter
Namespace: namespace,
Subsystem: "client",
Name: "sent_bytes",
Help: "Number of bytes that have been sent through a connection",
},
clientConnLabels,
[]string{ConnectionIndexMetricLabel},
),
receivedFrames: prometheus.NewCounterVec(
prometheus.CounterOpts{
prometheus.CounterOpts{ //nolint:promlinter
Namespace: namespace,
Subsystem: "client",
Name: "received_frames",
Help: "Number of frames that have been received through a connection",
},
append(clientConnLabels, "frame_type"),
[]string{ConnectionIndexMetricLabel, frameTypeMetricLabel},
),
receivedBytes: prometheus.NewCounterVec(
prometheus.CounterOpts{
prometheus.CounterOpts{ //nolint:promlinter
Namespace: namespace,
Subsystem: "client",
Name: "receive_bytes",
Help: "Number of bytes that have been received through a connection",
},
clientConnLabels,
[]string{ConnectionIndexMetricLabel},
),
bufferedPackets: prometheus.NewCounterVec(
prometheus.CounterOpts{
prometheus.CounterOpts{ //nolint:promlinter
Namespace: namespace,
Subsystem: "client",
Name: "buffered_packets",
Help: "Number of bytes that have been buffered on a connection",
},
append(clientConnLabels, "packet_type"),
[]string{ConnectionIndexMetricLabel, packetTypeMetricLabel},
),
droppedPackets: prometheus.NewCounterVec(
prometheus.CounterOpts{
prometheus.CounterOpts{ //nolint:promlinter
Namespace: namespace,
Subsystem: "client",
Name: "dropped_packets",
Help: "Number of bytes that have been dropped on a connection",
},
append(clientConnLabels, "packet_type", "reason"),
[]string{ConnectionIndexMetricLabel, packetTypeMetricLabel, reasonMetricLabel},
),
lostPackets: prometheus.NewCounterVec(
prometheus.CounterOpts{
prometheus.CounterOpts{ //nolint:promlinter
Namespace: namespace,
Subsystem: "client",
Name: "lost_packets",
Help: "Number of packets that have been lost from a connection",
},
append(clientConnLabels, "reason"),
[]string{ConnectionIndexMetricLabel, reasonMetricLabel},
),
minRTT: prometheus.NewGaugeVec(
prometheus.GaugeOpts{
@@ -129,7 +132,7 @@ var (
Name: "min_rtt",
Help: "Lowest RTT measured on a connection in millisec",
},
clientConnLabels,
[]string{ConnectionIndexMetricLabel},
),
latestRTT: prometheus.NewGaugeVec(
prometheus.GaugeOpts{
@@ -138,7 +141,7 @@ var (
Name: "latest_rtt",
Help: "Latest RTT measured on a connection",
},
clientConnLabels,
[]string{ConnectionIndexMetricLabel},
),
smoothedRTT: prometheus.NewGaugeVec(
prometheus.GaugeOpts{
@@ -147,7 +150,7 @@ var (
Name: "smoothed_rtt",
Help: "Calculated smoothed RTT measured on a connection in millisec",
},
clientConnLabels,
[]string{ConnectionIndexMetricLabel},
),
mtu: prometheus.NewGaugeVec(
prometheus.GaugeOpts{
@@ -156,7 +159,7 @@ var (
Name: "mtu",
Help: "Current maximum transmission unit (MTU) of a connection",
},
clientConnLabels,
[]string{ConnectionIndexMetricLabel},
),
congestionWindow: prometheus.NewGaugeVec(
prometheus.GaugeOpts{
@@ -165,7 +168,7 @@ var (
Name: "congestion_window",
Help: "Current congestion window size",
},
clientConnLabels,
[]string{ConnectionIndexMetricLabel},
),
congestionState: prometheus.NewGaugeVec(
prometheus.GaugeOpts{
@@ -174,13 +177,13 @@ var (
Name: "congestion_state",
Help: "Current congestion control state. See https://pkg.go.dev/github.com/quic-go/quic-go@v0.45.0/logging#CongestionState for what each value maps to",
},
clientConnLabels,
[]string{ConnectionIndexMetricLabel},
),
}
registerClient = sync.Once{}
packetTooBigDropped = prometheus.NewCounter(prometheus.CounterOpts{
packetTooBigDropped = prometheus.NewCounter(prometheus.CounterOpts{ //nolint:promlinter
Namespace: namespace,
Subsystem: "client",
Name: "packet_too_big_dropped",