forked from mirror/client_golang
48 lines
1.7 KiB
Go
48 lines
1.7 KiB
Go
// Copyright (c) 2013, Prometheus Team
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// All rights reserved.
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//
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// Use of this source code is governed by a BSD-style license that can be found
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// in the LICENSE file.
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//
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package prometheus
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import (
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"time"
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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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var (
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marshalErrorCount = NewCounter()
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dumpErrorCount = NewCounter()
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requestCount = NewCounter()
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requestLatencyBuckets = LogarithmicSizedBucketsFor(0, 1000)
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requestLatency = NewHistogram(&HistogramSpecification{
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Starts: requestLatencyBuckets,
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BucketBuilder: AccumulatingBucketBuilder(EvictAndReplaceWith(50, AverageReducer), 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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startTime = NewGauge()
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)
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func init() {
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startTime.Set(nil, float64(time.Now().Unix()))
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DefaultRegistry.Register("telemetry_requests_metrics_total", "A counter of the total requests made against the telemetry system.", NilLabels, requestCount)
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DefaultRegistry.Register("telemetry_requests_metrics_latency_microseconds", "A histogram of the response latency for requests made against the telemetry system.", NilLabels, requestLatency)
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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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// This callback accumulates the microsecond duration of the reporting
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// framework's overhead such that it can be reported.
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var requestLatencyAccumulator = func(began time.Time) {
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microseconds := float64(time.Since(began) / time.Microsecond)
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requestLatency.Add(nil, microseconds)
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}
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