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[chore] update otel libraries (#3740)

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* chore: update otel dependencies

* refactor: combine tracing & metrics in observability package

* chore: update example tracing compose file
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Dominik Süß 2025-02-06 12:14:37 +01:00 • committed by GitHub
commit dd094e4012
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217 changed files with 6873 additions and 2734 deletions
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70
vendor/go.opentelemetry.io/otel/sdk/metric/exemplar.go generated vendored
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@ -4,51 +4,49 @@
package metric // import "go.opentelemetry.io/otel/sdk/metric"
import (
"os"
"runtime"
"slices"
"go.opentelemetry.io/otel/sdk/metric/internal/exemplar"
"go.opentelemetry.io/otel/sdk/metric/internal/x"
"go.opentelemetry.io/otel/attribute"
"go.opentelemetry.io/otel/sdk/metric/exemplar"
"go.opentelemetry.io/otel/sdk/metric/internal/aggregate"
)
// ExemplarReservoirProviderSelector selects the
// [exemplar.ReservoirProvider] to use
// based on the [Aggregation] of the metric.
type ExemplarReservoirProviderSelector func(Aggregation) exemplar.ReservoirProvider
// reservoirFunc returns the appropriately configured exemplar reservoir
// creation func based on the passed InstrumentKind and user defined
// environment variables.
// creation func based on the passed InstrumentKind and filter configuration.
func reservoirFunc[N int64 | float64](provider exemplar.ReservoirProvider, filter exemplar.Filter) func(attribute.Set) aggregate.FilteredExemplarReservoir[N] {
return func(attrs attribute.Set) aggregate.FilteredExemplarReservoir[N] {
return aggregate.NewFilteredExemplarReservoir[N](filter, provider(attrs))
}
}
// DefaultExemplarReservoirProviderSelector returns the default
// [exemplar.ReservoirProvider] for the
// provided [Aggregation].
//
// Note: This will only return non-nil values when the experimental exemplar
// feature is enabled and the OTEL_METRICS_EXEMPLAR_FILTER environment variable
// is not set to always_off.
func reservoirFunc[N int64 | float64](agg Aggregation) func() exemplar.FilteredReservoir[N] {
if !x.Exemplars.Enabled() {
return nil
}
// https://github.com/open-telemetry/opentelemetry-specification/blob/d4b241f451674e8f611bb589477680341006ad2b/specification/configuration/sdk-environment-variables.md#exemplar
const filterEnvKey = "OTEL_METRICS_EXEMPLAR_FILTER"
var filter exemplar.Filter
switch os.Getenv(filterEnvKey) {
case "always_on":
filter = exemplar.AlwaysOnFilter
case "always_off":
return exemplar.Drop
case "trace_based":
fallthrough
default:
filter = exemplar.SampledFilter
}
// For explicit bucket histograms with more than 1 bucket, it uses the
// [exemplar.HistogramReservoirProvider].
// For exponential histograms, it uses the
// [exemplar.FixedSizeReservoirProvider]
// with a size of min(20, max_buckets).
// For all other aggregations, it uses the
// [exemplar.FixedSizeReservoirProvider]
// with a size equal to the number of CPUs.
//
// Exemplar default reservoirs MAY change in a minor version bump. No
// guarantees are made on the shape or statistical properties of returned
// exemplars.
func DefaultExemplarReservoirProviderSelector(agg Aggregation) exemplar.ReservoirProvider {
// https://github.com/open-telemetry/opentelemetry-specification/blob/d4b241f451674e8f611bb589477680341006ad2b/specification/metrics/sdk.md#exemplar-defaults
// Explicit bucket histogram aggregation with more than 1 bucket will
// use AlignedHistogramBucketExemplarReservoir.
a, ok := agg.(AggregationExplicitBucketHistogram)
if ok && len(a.Boundaries) > 0 {
cp := slices.Clone(a.Boundaries)
return func() exemplar.FilteredReservoir[N] {
bounds := cp
return exemplar.NewFilteredReservoir[N](filter, exemplar.Histogram(bounds))
}
return exemplar.HistogramReservoirProvider(a.Boundaries)
}
var n int
@ -75,7 +73,5 @@ func reservoirFunc[N int64 | float64](agg Aggregation) func() exemplar.FilteredR
}
}
return func() exemplar.FilteredReservoir[N] {
return exemplar.NewFilteredReservoir[N](filter, exemplar.FixedSize(n))
}
return exemplar.FixedSizeReservoirProvider(n)
}