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Use Gauge instead of fake Enum to count connected users

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This commit is contained in:
Tulir Asokan 2020-10-16 16:52:49 +03:00
parent ead8a869c8
commit b76b9ce790
1 changed files with 28 additions and 19 deletions
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43
metrics.go
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@ -26,6 +26,7 @@ import (
"github.com/prometheus/client_golang/prometheus/promauto" "github.com/prometheus/client_golang/prometheus/promauto"
"github.com/prometheus/client_golang/prometheus/promhttp" "github.com/prometheus/client_golang/prometheus/promhttp"
log "maunium.net/go/maulogger/v2" log "maunium.net/go/maulogger/v2"
"maunium.net/go/mautrix/event" "maunium.net/go/mautrix/event"
"maunium.net/go/mautrix/id" "maunium.net/go/mautrix/id"
@ -54,8 +55,10 @@ type MetricsHandler struct {
unencryptedGroupCount prometheus.Gauge unencryptedGroupCount prometheus.Gauge
unencryptedPrivateCount prometheus.Gauge unencryptedPrivateCount prometheus.Gauge
connected *prometheus.GaugeVec connected prometheus.Gauge
loggedIn *prometheus.GaugeVec connectedState map[types.WhatsAppID]bool
loggedIn prometheus.Gauge
loggedInState map[types.WhatsAppID]bool
} }
func NewMetricsHandler(address string, log log.Logger, db *database.Database) *MetricsHandler { func NewMetricsHandler(address string, log log.Logger, db *database.Database) *MetricsHandler {
@ -99,14 +102,16 @@ func NewMetricsHandler(address string, log log.Logger, db *database.Database) *M
unencryptedGroupCount: portalCount.With(prometheus.Labels{"type": "group", "encrypted": "false"}), unencryptedGroupCount: portalCount.With(prometheus.Labels{"type": "group", "encrypted": "false"}),
unencryptedPrivateCount: portalCount.With(prometheus.Labels{"type": "private", "encrypted": "false"}), unencryptedPrivateCount: portalCount.With(prometheus.Labels{"type": "private", "encrypted": "false"}),
loggedIn: promauto.NewGaugeVec(prometheus.GaugeOpts{ loggedIn: promauto.NewGauge(prometheus.GaugeOpts{
Name: "bridge_logged_in", Name: "bridge_logged_in",
Help: "Users logged into the bridge", Help: "Users logged into the bridge",
}, []string{"jid", "bridge_logged_in"}), }),
connected: promauto.NewGaugeVec(prometheus.GaugeOpts{ loggedInState: make(map[types.WhatsAppID]bool),
connected: promauto.NewGauge(prometheus.GaugeOpts{
Name: "bridge_connected", Name: "bridge_connected",
Help: "Users connected to WhatsApp", Help: "Bridge users connected to WhatsApp",
}, []string{"jid", "bridge_connected"}), }),
connectedState: make(map[types.WhatsAppID]bool),
} }
} }
@ -136,26 +141,30 @@ func (mh *MetricsHandler) TrackLoginState(jid types.WhatsAppID, loggedIn bool) {
if !mh.running { if !mh.running {
return return
} }
var loggedInVal float64 = 0 currentVal, ok := mh.loggedInState[jid]
if !ok || currentVal != loggedIn {
mh.loggedInState[jid] = loggedIn
if loggedIn { if loggedIn {
loggedInVal = 1 mh.loggedIn.Inc()
} else {
mh.loggedIn.Dec()
}
} }
metric := mh.loggedIn.MustCurryWith(prometheus.Labels{"jid": jid})
metric.With(prometheus.Labels{"bridge_logged_in": "true"}).Set(loggedInVal)
metric.With(prometheus.Labels{"bridge_logged_in": "false"}).Set(1 - loggedInVal)
} }
func (mh *MetricsHandler) TrackConnectionState(jid types.WhatsAppID, connected bool) { func (mh *MetricsHandler) TrackConnectionState(jid types.WhatsAppID, connected bool) {
if !mh.running { if !mh.running {
return return
} }
var connectedVal float64 = 0 currentVal, ok := mh.connectedState[jid]
if !ok || currentVal != connected {
mh.connectedState[jid] = connected
if connected { if connected {
connectedVal = 1 mh.connected.Inc()
} else {
mh.connected.Dec()
}
} }
metric := mh.connected.MustCurryWith(prometheus.Labels{"jid": jid})
metric.With(prometheus.Labels{"bridge_connected": "true"}).Set(connectedVal)
metric.With(prometheus.Labels{"bridge_connected": "false"}).Set(1 - connectedVal)
} }
func (mh *MetricsHandler) updateStats() { func (mh *MetricsHandler) updateStats() {