Implement max bucket limit and automatic resolution reduction #6104
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Signed-off-by: Ben Ye <benye@amazon.com>
Signed-off-by: Ben Ye <benye@amazon.com>
CharlieTLe
approved these changes
Jul 22, 2024
pkg/util/validation/limits.go
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| @@ -722,6 +725,11 @@ func (o *Overrides) EnforceMetadataMetricName(userID string) bool { | |||
| return o.GetOverridesForUser(userID).EnforceMetadataMetricName | |||
| } | |||
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| // MaxNativeHistogramBuckets. | |||
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nit: Can we add comment on what this function is doing?
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Addressed in latest commit.
pkg/util/validation/validate.go
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| @@ -52,6 +52,9 @@ const ( | |||
| exemplarLabelsTooLong = "exemplar_labels_too_long" | |||
| exemplarTimestampInvalid = "exemplar_timestamp_invalid" | |||
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| // Native Histogram specific validation reasons | |||
| nativeHistogramBucketsExceeded = "native_histogram_buckets_exceeded" | |||
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Can we make the error more specific like nativeHistogramBucketCountLimitExceeded?
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Addressed in latest commit.
Signed-off-by: Ben Ye <benye@amazon.com>
CharlieTLe
approved these changes
Jul 23, 2024
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What this PR does:
Introduce a new limit
max_native_histogram_bucketswhich limits maximum number of buckets of a native histogram sample. When exceeding the limit, Distributor will try to reduce the ingested histogram resolution until it is within the buckeet limit or the resolution can't be reduced anymore.Which issue(s) this PR fixes:
Fixes #6092
Checklist
CHANGELOG.mdupdated - the order of entries should be[CHANGE],[FEATURE],[ENHANCEMENT],[BUGFIX]