histograms: fixed panic in merge when target bucket is nil

VictoriaMetrics · May 20, 2024 · 5e5f209 · 5e5f209
1 parent a52bdc6
commit 5e5f209
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/histogram.go b/histogram.go
@@ -125,6 +125,10 @@ func (h *Histogram) Merge(b *Histogram) {
 		if db == nil {
 			continue
 		}
+		if h.decimalBuckets[i] == nil {
+			var b [bucketsPerDecimal]uint64
+			h.decimalBuckets[i] = &b
+		}
 		for j := range db {
 			h.decimalBuckets[i][j] = db[j]
 		}