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Merge pull request #10025 from prometheus/beorn7/histogram-sum

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promql: Add a guard against a nil histogram in sum aggregation
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Björn Rabenstein 2021-12-15 15:12:40 +01:00 committed by GitHub
commit 7e2fa88a1d
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1 changed files with 6 additions and 1 deletions
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7
promql/engine.go
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@ -2321,7 +2321,12 @@ func (ev *evaluator) aggregation(op parser.ItemType, grouping []string, without
case parser.SUM:
if s.H != nil {
group.hasHistogram = true
group.histogramValue.Add(s.H)
if group.histogramValue != nil {
group.histogramValue.Add(s.H)
}
// Otherwise the aggregation contained floats
// previously and will be invalid anyway. No
// point in copying the histogram in that case.
} else {
group.hasFloat = true
group.value += s.V