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rebase: bump github.com/prometheus/client_golang from 1.12.0 to 1.12.1
Bumps [github.com/prometheus/client_golang](https://github.com/prometheus/client_golang) from 1.12.0 to 1.12.1. - [Release notes](https://github.com/prometheus/client_golang/releases) - [Changelog](https://github.com/prometheus/client_golang/blob/main/CHANGELOG.md) - [Commits](https://github.com/prometheus/client_golang/compare/v1.12.0...v1.12.1) --- updated-dependencies: - dependency-name: github.com/prometheus/client_golang dependency-type: direct:production update-type: version-update:semver-patch ... Signed-off-by: dependabot[bot] <support@github.com>
This commit is contained in:
parent
f6894909d7
commit
3014b722ad
2
go.mod
2
go.mod
@ -20,7 +20,7 @@ require (
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github.com/onsi/ginkgo v1.16.5
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github.com/onsi/gomega v1.18.0
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github.com/pborman/uuid v1.2.1
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github.com/prometheus/client_golang v1.12.0
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github.com/prometheus/client_golang v1.12.1
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github.com/stretchr/testify v1.7.0
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golang.org/x/crypto v0.0.0-20210817164053-32db794688a5
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golang.org/x/sys v0.0.0-20220114195835-da31bd327af9
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4
go.sum
4
go.sum
@ -936,8 +936,8 @@ github.com/prometheus/client_golang v1.0.0/go.mod h1:db9x61etRT2tGnBNRi70OPL5Fsn
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github.com/prometheus/client_golang v1.4.0/go.mod h1:e9GMxYsXl05ICDXkRhurwBS4Q3OK1iX/F2sw+iXX5zU=
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github.com/prometheus/client_golang v1.7.1/go.mod h1:PY5Wy2awLA44sXw4AOSfFBetzPP4j5+D6mVACh+pe2M=
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github.com/prometheus/client_golang v1.11.0/go.mod h1:Z6t4BnS23TR94PD6BsDNk8yVqroYurpAkEiz0P2BEV0=
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github.com/prometheus/client_golang v1.12.0 h1:C+UIj/QWtmqY13Arb8kwMt5j34/0Z2iKamrJ+ryC0Gg=
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github.com/prometheus/client_golang v1.12.0/go.mod h1:3Z9XVyYiZYEO+YQWt3RD2R3jrbd179Rt297l4aS6nDY=
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github.com/prometheus/client_golang v1.12.1 h1:ZiaPsmm9uiBeaSMRznKsCDNtPCS0T3JVDGF+06gjBzk=
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github.com/prometheus/client_golang v1.12.1/go.mod h1:3Z9XVyYiZYEO+YQWt3RD2R3jrbd179Rt297l4aS6nDY=
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github.com/prometheus/client_model v0.0.0-20180712105110-5c3871d89910/go.mod h1:MbSGuTsp3dbXC40dX6PRTWyKYBIrTGTE9sqQNg2J8bo=
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github.com/prometheus/client_model v0.0.0-20190115171406-56726106282f/go.mod h1:MbSGuTsp3dbXC40dX6PRTWyKYBIrTGTE9sqQNg2J8bo=
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github.com/prometheus/client_model v0.0.0-20190129233127-fd36f4220a90/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA=
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8
vendor/github.com/prometheus/client_golang/prometheus/collector.go
generated
vendored
8
vendor/github.com/prometheus/client_golang/prometheus/collector.go
generated
vendored
@ -118,3 +118,11 @@ func (c *selfCollector) Describe(ch chan<- *Desc) {
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func (c *selfCollector) Collect(ch chan<- Metric) {
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ch <- c.self
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}
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// collectorMetric is a metric that is also a collector.
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// Because of selfCollector, most (if not all) Metrics in
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// this package are also collectors.
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type collectorMetric interface {
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Metric
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Collector
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}
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94
vendor/github.com/prometheus/client_golang/prometheus/go_collector_go117.go
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vendor/github.com/prometheus/client_golang/prometheus/go_collector_go117.go
generated
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@ -20,6 +20,7 @@ import (
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"math"
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"runtime"
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"runtime/metrics"
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"strings"
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"sync"
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//nolint:staticcheck // Ignore SA1019. Need to keep deprecated package for compatibility.
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@ -31,10 +32,14 @@ import (
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type goCollector struct {
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base baseGoCollector
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// mu protects updates to all fields ensuring a consistent
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// snapshot is always produced by Collect.
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mu sync.Mutex
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// rm... fields all pertain to the runtime/metrics package.
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rmSampleBuf []metrics.Sample
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rmSampleMap map[string]*metrics.Sample
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rmMetrics []Metric
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rmMetrics []collectorMetric
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// With Go 1.17, the runtime/metrics package was introduced.
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// From that point on, metric names produced by the runtime/metrics
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@ -52,13 +57,24 @@ type goCollector struct {
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// Deprecated: Use collectors.NewGoCollector instead.
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func NewGoCollector() Collector {
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descriptions := metrics.All()
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descMap := make(map[string]*metrics.Description)
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for i := range descriptions {
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descMap[descriptions[i].Name] = &descriptions[i]
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// Collect all histogram samples so that we can get their buckets.
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// The API guarantees that the buckets are always fixed for the lifetime
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// of the process.
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var histograms []metrics.Sample
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for _, d := range descriptions {
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if d.Kind == metrics.KindFloat64Histogram {
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histograms = append(histograms, metrics.Sample{Name: d.Name})
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}
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}
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metrics.Read(histograms)
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bucketsMap := make(map[string][]float64)
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for i := range histograms {
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bucketsMap[histograms[i].Name] = histograms[i].Value.Float64Histogram().Buckets
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}
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// Generate a Desc and ValueType for each runtime/metrics metric.
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metricSet := make([]Metric, 0, len(descriptions))
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metricSet := make([]collectorMetric, 0, len(descriptions))
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sampleBuf := make([]metrics.Sample, 0, len(descriptions))
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sampleMap := make(map[string]*metrics.Sample, len(descriptions))
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for i := range descriptions {
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@ -76,9 +92,10 @@ func NewGoCollector() Collector {
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sampleBuf = append(sampleBuf, metrics.Sample{Name: d.Name})
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sampleMap[d.Name] = &sampleBuf[len(sampleBuf)-1]
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var m Metric
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var m collectorMetric
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if d.Kind == metrics.KindFloat64Histogram {
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_, hasSum := rmExactSumMap[d.Name]
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unit := d.Name[strings.IndexRune(d.Name, ':')+1:]
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m = newBatchHistogram(
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NewDesc(
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BuildFQName(namespace, subsystem, name),
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@ -86,6 +103,7 @@ func NewGoCollector() Collector {
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nil,
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nil,
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),
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internal.RuntimeMetricsBucketsForUnit(bucketsMap[d.Name], unit),
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hasSum,
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)
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} else if d.Cumulative {
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@ -130,9 +148,25 @@ func (c *goCollector) Collect(ch chan<- Metric) {
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// Collect base non-memory metrics.
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c.base.Collect(ch)
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// Collect must be thread-safe, so prevent concurrent use of
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// rmSampleBuf. Just read into rmSampleBuf but write all the data
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// we get into our Metrics or MemStats.
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//
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// This lock also ensures that the Metrics we send out are all from
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// the same updates, ensuring their mutual consistency insofar as
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// is guaranteed by the runtime/metrics package.
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//
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// N.B. This locking is heavy-handed, but Collect is expected to be called
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// relatively infrequently. Also the core operation here, metrics.Read,
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// is fast (O(tens of microseconds)) so contention should certainly be
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// low, though channel operations and any allocations may add to that.
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c.mu.Lock()
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defer c.mu.Unlock()
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// Populate runtime/metrics sample buffer.
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metrics.Read(c.rmSampleBuf)
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// Update all our metrics from rmSampleBuf.
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for i, sample := range c.rmSampleBuf {
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// N.B. switch on concrete type because it's significantly more efficient
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// than checking for the Counter and Gauge interface implementations. In
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@ -157,7 +191,6 @@ func (c *goCollector) Collect(ch chan<- Metric) {
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panic("unexpected metric type")
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}
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}
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// ms is a dummy MemStats that we populate ourselves so that we can
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// populate the old metrics from it.
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var ms runtime.MemStats
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@ -280,13 +313,27 @@ type batchHistogram struct {
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// but Write calls may operate concurrently with updates.
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// Contention between these two sources should be rare.
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mu sync.Mutex
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buckets []float64 // Inclusive lower bounds.
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buckets []float64 // Inclusive lower bounds, like runtime/metrics.
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counts []uint64
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sum float64 // Used if hasSum is true.
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}
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func newBatchHistogram(desc *Desc, hasSum bool) *batchHistogram {
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h := &batchHistogram{desc: desc, hasSum: hasSum}
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// newBatchHistogram creates a new batch histogram value with the given
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// Desc, buckets, and whether or not it has an exact sum available.
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//
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// buckets must always be from the runtime/metrics package, following
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// the same conventions.
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func newBatchHistogram(desc *Desc, buckets []float64, hasSum bool) *batchHistogram {
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h := &batchHistogram{
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desc: desc,
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buckets: buckets,
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// Because buckets follows runtime/metrics conventions, there's
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// 1 more value in the buckets list than there are buckets represented,
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// because in runtime/metrics, the bucket values represent *boundaries*,
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// and non-Inf boundaries are inclusive lower bounds for that bucket.
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counts: make([]uint64, len(buckets)-1),
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hasSum: hasSum,
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}
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h.init(h)
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return h
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}
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@ -294,28 +341,25 @@ func newBatchHistogram(desc *Desc, hasSum bool) *batchHistogram {
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// update updates the batchHistogram from a runtime/metrics histogram.
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//
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// sum must be provided if the batchHistogram was created to have an exact sum.
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// h.buckets must be a strict subset of his.Buckets.
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func (h *batchHistogram) update(his *metrics.Float64Histogram, sum float64) {
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counts, buckets := his.Counts, his.Buckets
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// Skip a -Inf bucket altogether. It's not clear how to represent that.
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if math.IsInf(buckets[0], -1) {
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buckets = buckets[1:]
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counts = counts[1:]
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}
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h.mu.Lock()
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defer h.mu.Unlock()
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// Check if we're initialized.
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if h.buckets == nil {
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// Make copies of counts and buckets. It's really important
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// that we don't retain his.Counts or his.Buckets anywhere since
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// it's going to get reused.
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h.buckets = make([]float64, len(buckets))
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copy(h.buckets, buckets)
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h.counts = make([]uint64, len(counts))
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// Clear buckets.
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for i := range h.counts {
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h.counts[i] = 0
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}
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// Copy and reduce buckets.
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var j int
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for i, count := range counts {
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h.counts[j] += count
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if buckets[i+1] == h.buckets[j+1] {
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j++
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}
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}
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copy(h.counts, counts)
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if h.hasSum {
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h.sum = sum
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}
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vendor/github.com/prometheus/client_golang/prometheus/internal/go_runtime_metrics.go
generated
vendored
65
vendor/github.com/prometheus/client_golang/prometheus/internal/go_runtime_metrics.go
generated
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@ -17,6 +17,7 @@
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package internal
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import (
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"math"
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"path"
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"runtime/metrics"
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"strings"
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@ -75,3 +76,67 @@ func RuntimeMetricsToProm(d *metrics.Description) (string, string, string, bool)
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}
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return namespace, subsystem, name, valid
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}
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// RuntimeMetricsBucketsForUnit takes a set of buckets obtained for a runtime/metrics histogram
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// type (so, lower-bound inclusive) and a unit from a runtime/metrics name, and produces
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// a reduced set of buckets. This function always removes any -Inf bucket as it's represented
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// as the bottom-most upper-bound inclusive bucket in Prometheus.
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func RuntimeMetricsBucketsForUnit(buckets []float64, unit string) []float64 {
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switch unit {
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case "bytes":
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// Rebucket as powers of 2.
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return rebucketExp(buckets, 2)
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case "seconds":
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// Rebucket as powers of 10 and then merge all buckets greater
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// than 1 second into the +Inf bucket.
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b := rebucketExp(buckets, 10)
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for i := range b {
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if b[i] <= 1 {
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continue
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}
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b[i] = math.Inf(1)
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b = b[:i+1]
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break
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}
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return b
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}
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return buckets
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}
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// rebucketExp takes a list of bucket boundaries (lower bound inclusive) and
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// downsamples the buckets to those a multiple of base apart. The end result
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// is a roughly exponential (in many cases, perfectly exponential) bucketing
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// scheme.
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func rebucketExp(buckets []float64, base float64) []float64 {
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bucket := buckets[0]
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var newBuckets []float64
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// We may see a -Inf here, in which case, add it and skip it
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// since we risk producing NaNs otherwise.
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//
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// We need to preserve -Inf values to maintain runtime/metrics
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// conventions. We'll strip it out later.
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if bucket == math.Inf(-1) {
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newBuckets = append(newBuckets, bucket)
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buckets = buckets[1:]
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bucket = buckets[0]
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}
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// From now on, bucket should always have a non-Inf value because
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// Infs are only ever at the ends of the bucket lists, so
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// arithmetic operations on it are non-NaN.
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for i := 1; i < len(buckets); i++ {
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if bucket >= 0 && buckets[i] < bucket*base {
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// The next bucket we want to include is at least bucket*base.
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continue
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} else if bucket < 0 && buckets[i] < bucket/base {
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// In this case the bucket we're targeting is negative, and since
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// we're ascending through buckets here, we need to divide to get
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// closer to zero exponentially.
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continue
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}
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// The +Inf bucket will always be the last one, and we'll always
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// end up including it here because bucket
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newBuckets = append(newBuckets, bucket)
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bucket = buckets[i]
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}
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return append(newBuckets, bucket)
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}
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2
vendor/modules.txt
vendored
2
vendor/modules.txt
vendored
@ -401,7 +401,7 @@ github.com/pkg/errors
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# github.com/pmezard/go-difflib v1.0.0
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## explicit
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github.com/pmezard/go-difflib/difflib
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# github.com/prometheus/client_golang v1.12.0
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# github.com/prometheus/client_golang v1.12.1
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## explicit; go 1.13
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github.com/prometheus/client_golang/prometheus
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github.com/prometheus/client_golang/prometheus/collectors
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