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