add rounds metric

consensus/metrics.go

@@ -7,6 +7,7 @@ import "github.com/go-kit/kit/metrics/discard"
 // see MetricsProvider for descriptions.
 type Metrics struct {
 	Height metrics.Counter
+	Rounds metrics.Gauge
 
 	Validators               metrics.Gauge
 	ValidatorsPower          metrics.Gauge

consensus/state.go

@@ -697,6 +697,7 @@ func (cs *ConsensusState) enterNewRound(height int64, round int) {
 	}
 
 	logger.Info(cmn.Fmt("enterNewRound(%v/%v). Current: %v/%v/%v", height, round, cs.Height, cs.Round, cs.Step))
+	cs.metrics.Rounds.Set(float64(round))
 
 	// Increment validators if necessary
 	validators := cs.Validators

node/node.go

@@ -102,6 +102,11 @@ func DefaultMetricsProvider() *cs.Metrics {
 			Name:      "height",
 			Help:      "Height of the chain.",
 		}, []string{}),
+		Rounds: prometheus.NewGaugeFrom(stdprometheus.GaugeOpts{
+			Subsystem: "consensus",
+			Name:      "rounds",
+			Help:      "Number of rounds.",
+		}, []string{}),
 
 		Validators: prometheus.NewGaugeFrom(stdprometheus.GaugeOpts{
 			Subsystem: "consensus",