mirror of
https://gitlab.com/pulsechaincom/erigon-pulse.git
synced 2024-12-23 12:07:17 +00:00
121 lines
3.7 KiB
Go
121 lines
3.7 KiB
Go
// Copyright 2019 The go-ethereum Authors
|
|
// This file is part of the go-ethereum library.
|
|
//
|
|
// The go-ethereum library is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU Lesser General Public License as published by
|
|
// the Free Software Foundation, either version 3 of the License, or
|
|
// (at your option) any later version.
|
|
//
|
|
// The go-ethereum library is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU Lesser General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU Lesser General Public License
|
|
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
package prometheus
|
|
|
|
import (
|
|
"bytes"
|
|
"fmt"
|
|
"strconv"
|
|
"strings"
|
|
|
|
"github.com/ledgerwatch/erigon/metrics"
|
|
)
|
|
|
|
var (
|
|
typeGaugeTpl = "# TYPE %s gauge\n"
|
|
typeCounterTpl = "# TYPE %s counter\n"
|
|
typeSummaryTpl = "# TYPE %s summary\n"
|
|
keyValueTpl = "%s %v\n\n"
|
|
keyQuantileTagValueTpl = "%s {quantile=\"%s\"} %v\n"
|
|
)
|
|
|
|
// collector is a collection of byte buffers that aggregate Prometheus reports
|
|
// for different metric types.
|
|
type collector struct {
|
|
buff *bytes.Buffer
|
|
}
|
|
|
|
// newCollector creates a new Prometheus metric aggregator.
|
|
func newCollector() *collector {
|
|
return &collector{
|
|
buff: &bytes.Buffer{},
|
|
}
|
|
}
|
|
|
|
func (c *collector) addCounter(name string, m metrics.Counter) {
|
|
c.writeGaugeCounter(name, m.Count())
|
|
}
|
|
|
|
func (c *collector) addGauge(name string, m metrics.Gauge) {
|
|
c.writeGaugeCounter(name, m.Value())
|
|
}
|
|
|
|
func (c *collector) addGaugeFloat64(name string, m metrics.GaugeFloat64) {
|
|
c.writeGaugeCounter(name, m.Value())
|
|
}
|
|
|
|
func (c *collector) addHistogram(name string, m metrics.Histogram) {
|
|
pv := []float64{0.5, 0.75, 0.95, 0.99, 0.999, 0.9999}
|
|
ps := m.Percentiles(pv)
|
|
c.writeSummaryCounter(name, m.Count())
|
|
c.buff.WriteString(fmt.Sprintf(typeSummaryTpl, mutateKey(name)))
|
|
for i := range pv {
|
|
c.writeSummaryPercentile(name, strconv.FormatFloat(pv[i], 'f', -1, 64), ps[i])
|
|
}
|
|
c.buff.WriteRune('\n')
|
|
}
|
|
|
|
func (c *collector) addMeter(name string, m metrics.Meter) {
|
|
c.writeGaugeCounter(name, m.Count())
|
|
}
|
|
|
|
func (c *collector) addTimer(name string, m metrics.Timer) {
|
|
pv := []float64{0.5, 0.75, 0.95, 0.99, 0.999, 0.9999}
|
|
ps := m.Percentiles(pv)
|
|
c.writeSummaryCounter(name, m.Count())
|
|
c.buff.WriteString(fmt.Sprintf(typeSummaryTpl, mutateKey(name)))
|
|
for i := range pv {
|
|
c.writeSummaryPercentile(name, strconv.FormatFloat(pv[i], 'f', -1, 64), ps[i])
|
|
}
|
|
c.buff.WriteRune('\n')
|
|
}
|
|
|
|
func (c *collector) addResettingTimer(name string, m metrics.ResettingTimer) {
|
|
if len(m.Values()) == 0 {
|
|
return
|
|
}
|
|
ps := m.Percentiles([]float64{50, 95, 99})
|
|
val := m.Values()
|
|
c.writeSummaryCounter(name, len(val))
|
|
c.buff.WriteString(fmt.Sprintf(typeSummaryTpl, mutateKey(name)))
|
|
c.writeSummaryPercentile(name, "0.50", ps[0])
|
|
c.writeSummaryPercentile(name, "0.95", ps[1])
|
|
c.writeSummaryPercentile(name, "0.99", ps[2])
|
|
c.buff.WriteRune('\n')
|
|
}
|
|
|
|
func (c *collector) writeGaugeCounter(name string, value interface{}) {
|
|
name = mutateKey(name)
|
|
c.buff.WriteString(fmt.Sprintf(typeGaugeTpl, name))
|
|
c.buff.WriteString(fmt.Sprintf(keyValueTpl, name, value))
|
|
}
|
|
|
|
func (c *collector) writeSummaryCounter(name string, value interface{}) {
|
|
name = mutateKey(name + "_count")
|
|
c.buff.WriteString(fmt.Sprintf(typeCounterTpl, name))
|
|
c.buff.WriteString(fmt.Sprintf(keyValueTpl, name, value))
|
|
}
|
|
|
|
func (c *collector) writeSummaryPercentile(name, p string, value interface{}) {
|
|
name = mutateKey(name)
|
|
c.buff.WriteString(fmt.Sprintf(keyQuantileTagValueTpl, name, p, value))
|
|
}
|
|
|
|
func mutateKey(key string) string {
|
|
return strings.ReplaceAll(key, "/", "_")
|
|
}
|