63 lines
3.3 KiB
Go
63 lines
3.3 KiB
Go
/*
|
|
Copyright (c) 2013, Matt T. Proud
|
|
All rights reserved.
|
|
|
|
Use of this source code is governed by a BSD-style license that can be found in
|
|
the LICENSE file.
|
|
*/
|
|
|
|
package registry
|
|
|
|
import (
|
|
"github.com/matttproud/golang_instrumentation/maths"
|
|
"github.com/matttproud/golang_instrumentation/metrics"
|
|
"time"
|
|
)
|
|
|
|
/*
|
|
Boilerplate metrics about the metrics reporting subservice. These are only
|
|
exposed if the DefaultRegistry's exporter is hooked into the HTTP request
|
|
handler.
|
|
*/
|
|
var (
|
|
// TODO(matt): Refresh these names to support namespacing.
|
|
|
|
requestCount *metrics.CounterMetric = &metrics.CounterMetric{}
|
|
requestLatencyLogarithmicBuckets []float64 = metrics.LogarithmicSizedBucketsFor(0, 1000)
|
|
requestLatencyEqualBuckets []float64 = metrics.EquallySizedBucketsFor(0, 1000, 10)
|
|
requestLatencyLogarithmicAccumulating *metrics.Histogram = metrics.CreateHistogram(&metrics.HistogramSpecification{
|
|
Starts: requestLatencyLogarithmicBuckets,
|
|
BucketMaker: metrics.AccumulatingBucketBuilder(metrics.EvictAndReplaceWith(50, maths.Average), 1000),
|
|
ReportablePercentiles: []float64{0.01, 0.05, 0.5, 0.9, 0.99},
|
|
})
|
|
requestLatencyEqualAccumulating *metrics.Histogram = metrics.CreateHistogram(&metrics.HistogramSpecification{
|
|
Starts: requestLatencyEqualBuckets,
|
|
BucketMaker: metrics.AccumulatingBucketBuilder(metrics.EvictAndReplaceWith(50, maths.Average), 1000),
|
|
ReportablePercentiles: []float64{0.01, 0.05, 0.5, 0.9, 0.99},
|
|
})
|
|
requestLatencyLogarithmicTallying *metrics.Histogram = metrics.CreateHistogram(&metrics.HistogramSpecification{
|
|
Starts: requestLatencyLogarithmicBuckets,
|
|
BucketMaker: metrics.TallyingBucketBuilder,
|
|
ReportablePercentiles: []float64{0.01, 0.05, 0.5, 0.9, 0.99},
|
|
})
|
|
requestLatencyEqualTallying *metrics.Histogram = metrics.CreateHistogram(&metrics.HistogramSpecification{
|
|
Starts: requestLatencyEqualBuckets,
|
|
BucketMaker: metrics.TallyingBucketBuilder,
|
|
ReportablePercentiles: []float64{0.01, 0.05, 0.5, 0.9, 0.99},
|
|
})
|
|
|
|
startTime *metrics.GaugeMetric = &metrics.GaugeMetric{}
|
|
)
|
|
|
|
func init() {
|
|
startTime.Set(float64(time.Now().Unix()))
|
|
|
|
DefaultRegistry.Register("requests_metrics_total", "A counter of the total requests made against the telemetry system.", NilLabels, requestCount)
|
|
DefaultRegistry.Register("requests_metrics_latency_logarithmic_accumulating_microseconds", "A histogram of the response latency for requests made against the telemetry system.", NilLabels, requestLatencyLogarithmicAccumulating)
|
|
DefaultRegistry.Register("requests_metrics_latency_equal_accumulating_microseconds", "A histogram of the response latency for requests made against the telemetry system.", NilLabels, requestLatencyEqualAccumulating)
|
|
DefaultRegistry.Register("requests_metrics_latency_logarithmic_tallying_microseconds", "A histogram of the response latency for requests made against the telemetry system.", NilLabels, requestLatencyLogarithmicTallying)
|
|
DefaultRegistry.Register("request_metrics_latency_equal_tallying_microseconds", "A histogram of the response latency for requests made against the telemetry system.", NilLabels, requestLatencyEqualTallying)
|
|
|
|
DefaultRegistry.Register("instance_start_time_seconds", "The time at which the current instance started (UTC).", NilLabels, startTime)
|
|
}
|