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native histograms: only reduce resolution for exponential histograms 

Currently we can only reduce the resolution of exponential native
histograms, so checking the schema for that is slightly more precise
than checking against max schema.

Signed-off-by: György Krajcsovits <gyorgy.krajcsovits@grafana.com>
This commit is contained in:
György Krajcsovits 2024-06-11 11:08:25 +02:00
parent 23cca90cac
commit 0793a26d96
1 changed files with 2 additions and 2 deletions
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4
scrape/target.go
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@ -365,7 +365,7 @@ type bucketLimitAppender struct {
func (app *bucketLimitAppender) AppendHistogram(ref storage.SeriesRef, lset labels.Labels, t int64, h *histogram.Histogram, fh *histogram.FloatHistogram) (storage.SeriesRef, error) {
if h != nil {
if len(h.PositiveBuckets)+len(h.NegativeBuckets) > app.limit && h.Schema > histogram.ExponentialSchemaMax {
if len(h.PositiveBuckets)+len(h.NegativeBuckets) > app.limit && !histogram.IsExponentialSchema(h.Schema) {
return 0, errBucketLimit
}
for len(h.PositiveBuckets)+len(h.NegativeBuckets) > app.limit {
@ -376,7 +376,7 @@ func (app *bucketLimitAppender) AppendHistogram(ref storage.SeriesRef, lset labe
}
}
if fh != nil {
if len(fh.PositiveBuckets)+len(fh.NegativeBuckets) > app.limit && fh.Schema > histogram.ExponentialSchemaMax {
if len(fh.PositiveBuckets)+len(fh.NegativeBuckets) > app.limit && !histogram.IsExponentialSchema(fh.Schema) {
return 0, errBucketLimit
}
for len(fh.PositiveBuckets)+len(fh.NegativeBuckets) > app.limit {