/
metrics.go
132 lines (116 loc) · 3.55 KB
/
metrics.go
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// Copyright 2016 IBM Corporation
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package metrics
import (
"time"
"github.com/Sirupsen/logrus"
"github.com/amalgam8/amalgam8/registry/utils/logging"
gometrics "github.com/rcrowley/go-metrics"
)
// interval at which the metrics registry is dumped
const dumpInterval = 10 * time.Minute
// module name to be used in logging
const moduleName = "METRICS"
var logger = logging.GetLogger(moduleName)
// DumpPeriodically logs the values of the entire go-metrics registry, periodically.
// This function blocks, so should be called within a separate goroutine.
func DumpPeriodically() {
dumpPeriodically(dumpInterval, gometrics.DefaultRegistry)
}
func dumpPeriodically(interval time.Duration, registry gometrics.Registry) {
for range time.Tick(interval) {
dumpRegistry(registry)
}
}
func dumpRegistry(registry gometrics.Registry) {
logger.Info("Dumping metrics registry")
registry.Each(func(name string, metric interface{}) {
dumpMetric(name, metric)
})
}
func dumpMetric(name string, metric interface{}) {
switch metric := metric.(type) {
case gometrics.Counter:
dumpCounter(name, metric)
case gometrics.Gauge:
dumpGauge(name, metric)
case gometrics.GaugeFloat64:
dumpGaugeFloat64(name, metric)
case gometrics.Meter:
dumpMeter(name, metric)
case gometrics.Histogram:
dumpHistogram(name, metric)
case gometrics.Timer:
dumpTimer(name, metric)
}
}
func dumpCounter(name string, metric gometrics.Counter) {
logger.WithFields(logrus.Fields{
"name": name,
"count": metric.Count(),
}).Info()
}
func dumpGauge(name string, metric gometrics.Gauge) {
logger.WithFields(logrus.Fields{
"name": name,
"value": metric.Value(),
}).Info()
}
func dumpGaugeFloat64(name string, metric gometrics.GaugeFloat64) {
logger.WithFields(logrus.Fields{
"name": name,
"value": metric.Value(),
}).Info()
}
func dumpMeter(name string, metric gometrics.Meter) {
m := metric.Snapshot()
logger.WithFields(logrus.Fields{
"name": name,
"count": m.Count(),
"rate-one-minute": m.Rate1(),
"rate-five-minute": m.Rate5(),
"rate-fifteen-minute": m.Rate15(),
"rate-mean": m.RateMean(),
}).Info()
}
func dumpHistogram(name string, metric gometrics.Histogram) {
m := metric.Snapshot()
logger.WithFields(logrus.Fields{
"name": name,
"count": m.Count(),
"sum": m.Sum(),
"min": m.Min(),
"max": m.Max(),
"mean": m.Mean(),
"stddev": m.StdDev(),
"variance": m.Variance(),
}).Info()
}
func dumpTimer(name string, metric gometrics.Timer) {
m := metric.Snapshot()
logger.WithFields(logrus.Fields{
"name": name,
"count": m.Count(),
"sum": m.Sum(),
"min": m.Min(),
"max": m.Max(),
"mean": m.Mean(),
"stddev": m.StdDev(),
"variance": m.Variance(),
"rate-one-minute": m.Rate1(),
"rate-five-minute": m.Rate5(),
"rate-fifteen-minute": m.Rate15(),
"rate-mean": m.RateMean(),
}).Info()
}