Revision dd5312143b32d12a1c103a3ebe2597503003ccad authored by Aleksandr Bezobchuk on 04 November 2020, 14:15:14 UTC, committed by GitHub on 04 November 2020, 14:15:14 UTC
metrics.go
package state
import (
"github.com/go-kit/kit/metrics"
"github.com/go-kit/kit/metrics/discard"
"github.com/go-kit/kit/metrics/prometheus"
stdprometheus "github.com/prometheus/client_golang/prometheus"
)
const (
// MetricsSubsystem is a subsystem shared by all metrics exposed by this
// package.
MetricsSubsystem = "state"
)
// Metrics contains metrics exposed by this package.
type Metrics struct {
// Time between BeginBlock and EndBlock.
BlockProcessingTime metrics.Histogram
}
// PrometheusMetrics returns Metrics build using Prometheus client library.
// Optionally, labels can be provided along with their values ("foo",
// "fooValue").
func PrometheusMetrics(namespace string, labelsAndValues ...string) *Metrics {
labels := []string{}
for i := 0; i < len(labelsAndValues); i += 2 {
labels = append(labels, labelsAndValues[i])
}
return &Metrics{
BlockProcessingTime: prometheus.NewHistogramFrom(stdprometheus.HistogramOpts{
Namespace: namespace,
Subsystem: MetricsSubsystem,
Name: "block_processing_time",
Help: "Time between BeginBlock and EndBlock in ms.",
Buckets: stdprometheus.LinearBuckets(1, 10, 10),
}, labels).With(labelsAndValues...),
}
}
// NopMetrics returns no-op Metrics.
func NopMetrics() *Metrics {
return &Metrics{
BlockProcessingTime: discard.NewHistogram(),
}
}
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