Files
livekit/pkg/telemetry/prometheus/node.go
2022-02-28 09:57:17 +05:30

89 lines
2.4 KiB
Go

package prometheus
import (
"time"
"github.com/livekit/protocol/livekit"
"github.com/livekit/protocol/utils"
"github.com/prometheus/client_golang/prometheus"
)
const livekitNamespace string = "livekit"
var (
MessageCounter *prometheus.CounterVec
ServiceOperationCounter *prometheus.CounterVec
)
func init() {
nodeID, _ := utils.LocalNodeID()
MessageCounter = prometheus.NewCounterVec(
prometheus.CounterOpts{
Namespace: livekitNamespace,
Subsystem: "node",
Name: "messages",
ConstLabels: prometheus.Labels{"node_id": nodeID},
},
[]string{"type", "status"},
)
ServiceOperationCounter = prometheus.NewCounterVec(
prometheus.CounterOpts{
Namespace: livekitNamespace,
Subsystem: "node",
Name: "service_operation",
ConstLabels: prometheus.Labels{"node_id": nodeID},
},
[]string{"type", "status", "error_type"},
)
prometheus.MustRegister(MessageCounter)
prometheus.MustRegister(ServiceOperationCounter)
initPacketStats(nodeID)
initRoomStats(nodeID)
}
func GetUpdatedNodeStats(prev *livekit.NodeStats) (*livekit.NodeStats, error) {
numCPUs, avg1Min, avg5Min, avg15Min, err := getSystemStats()
if err != nil {
return nil, err
}
updatedAt := time.Now().Unix()
elapsed := updatedAt - prev.UpdatedAt
bytesInNow := bytesIn.Load()
bytesOutNow := bytesOut.Load()
packetsInNow := packetsIn.Load()
packetsOutNow := packetsOut.Load()
nackTotalNow := nackTotal.Load()
return &livekit.NodeStats{
StartedAt: prev.StartedAt,
UpdatedAt: updatedAt,
NumRooms: roomTotal.Load(),
NumClients: participantTotal.Load(),
NumTracksIn: trackPublishedTotal.Load(),
NumTracksOut: trackSubscribedTotal.Load(),
BytesIn: bytesInNow,
BytesOut: bytesOutNow,
PacketsIn: packetsInNow,
PacketsOut: packetsOutNow,
NackTotal: nackTotalNow,
BytesInPerSec: perSec(prev.BytesIn, bytesInNow, elapsed),
BytesOutPerSec: perSec(prev.BytesOut, bytesOutNow, elapsed),
PacketsInPerSec: perSec(prev.PacketsIn, packetsInNow, elapsed),
PacketsOutPerSec: perSec(prev.PacketsOut, packetsOutNow, elapsed),
NackPerSec: perSec(prev.NackTotal, nackTotalNow, elapsed),
NumCpus: numCPUs,
LoadAvgLast1Min: avg1Min,
LoadAvgLast5Min: avg5Min,
LoadAvgLast15Min: avg15Min,
}, nil
}
func perSec(prev, curr uint64, secs int64) float32 {
return float32(curr-prev) / float32(secs)
}