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rules: Support native histograms 

Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com>
This commit is contained in:
Ganesh Vernekar 2023-01-10 19:07:24 +05:30
parent 3c2ea91a83
commit 53a5071a72
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GPG Key ID: F056451B52F1DC34
1 changed files with 11 additions and 1 deletions
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12
rules/manager.go
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@ -31,6 +31,7 @@ import (
"go.opentelemetry.io/otel/attribute" "go.opentelemetry.io/otel/attribute"
"go.opentelemetry.io/otel/codes" "go.opentelemetry.io/otel/codes"
"github.com/prometheus/prometheus/model/histogram"
"github.com/prometheus/prometheus/model/labels" "github.com/prometheus/prometheus/model/labels"
"github.com/prometheus/prometheus/model/rulefmt" "github.com/prometheus/prometheus/model/rulefmt"
"github.com/prometheus/prometheus/model/timestamp" "github.com/prometheus/prometheus/model/timestamp"
@ -668,7 +669,16 @@ func (g *Group) Eval(ctx context.Context, ts time.Time) {
}() }()
for _, s := range vector { for _, s := range vector {
if _, err := app.Append(0, s.Metric, s.T, s.V); err != nil { if s.H != nil {
// We assume that all native histogram results are gauge histograms.
// TODO(codesome): once PromQL can give the counter reset info, remove this assumption.
s.H.CounterResetHint = histogram.GaugeType
_, err = app.AppendHistogram(0, s.Metric, s.T, nil, s.H)
} else {
_, err = app.Append(0, s.Metric, s.T, s.V)
}
if err != nil {
rule.SetHealth(HealthBad) rule.SetHealth(HealthBad)
rule.SetLastError(err) rule.SetLastError(err)
sp.SetStatus(codes.Error, err.Error()) sp.SetStatus(codes.Error, err.Error())