rollback go to 1.20.4

Signed-off-by: f41gh7 <nik@victoriametrics.com>

deployment/docker/Makefile

@@ -6,7 +6,8 @@ ROOT_IMAGE ?= alpine:3.20.2
 ROOT_IMAGE_SCRATCH ?= scratch
 CERTS_IMAGE := alpine:3.20.2
 
-GO_BUILDER_IMAGE := golang:1.22.5-alpine
+GO_BUILDER_IMAGE := golang:1.20.4-alpine
+
 BUILDER_IMAGE := local/builder:2.0.0-$(shell echo $(GO_BUILDER_IMAGE) | tr :/ __)-1
 BASE_IMAGE := local/base:1.1.4-$(shell echo $(ROOT_IMAGE) | tr :/ __)-$(shell echo $(CERTS_IMAGE) | tr :/ __)
 DOCKER ?= docker

go.mod

@@ -1,6 +1,6 @@
 module github.com/VictoriaMetrics/VictoriaMetrics
 
-go 1.22.5
+go 1.20
 
 require (
 	cloud.google.com/go/storage v1.43.0

lib/prompbmarshal/util.go

@@ -26,7 +26,9 @@ func (wr *WriteRequest) Reset() {
 
 // ResetTimeSeries clears all the GC references from tss and returns an empty tss ready for further use.
 func ResetTimeSeries(tss []TimeSeries) []TimeSeries {
-	clear(tss)
+	for i := range tss {
+		tss[i] = TimeSeries{}
+	}
 	return tss[:0]
 }
 

lib/promrelabel/relabel.go

@@ -589,7 +589,9 @@ func GetLabelByName(labels []prompbmarshal.Label, name string) *prompbmarshal.La
 //
 // This should help GC cleaning up label.Name and label.Value strings.
 func CleanLabels(labels []prompbmarshal.Label) {
-	clear(labels)
+	for i := range labels {
+		labels[i] = prompbmarshal.Label{}
+	}
 }
 
 // LabelsToString returns Prometheus string representation for the given labels.

lib/promutils/labels.go

@@ -115,9 +115,15 @@ func (x *Labels) String() string {
 	return bytesutil.ToUnsafeString(b)
 }
 
+func cleanLabels(labels []prompbmarshal.Label) {
+	for i := range labels {
+		labels[i] = prompbmarshal.Label{}
+	}
+}
+
 // Reset resets x.
 func (x *Labels) Reset() {
-	clear(x.Labels)
+	cleanLabels(x.Labels)
 	x.Labels = x.Labels[:0]
 }
 
@@ -245,7 +251,7 @@ func (x *Labels) RemoveDuplicates() {
 			prevName = label.Name
 		}
 	}
-	clear(labels[len(tmp):])
+	cleanLabels(labels[len(tmp):])
 	x.Labels = tmp
 }
 
@@ -261,7 +267,7 @@ func (x *Labels) RemoveMetaLabels() {
 		}
 		dst = append(dst, label)
 	}
-	clear(src[len(dst):])
+	cleanLabels(src[len(dst):])
 	x.Labels = dst
 }
 
@@ -276,7 +282,7 @@ func (x *Labels) RemoveLabelsWithDoubleUnderscorePrefix() {
 		}
 		dst = append(dst, label)
 	}
-	clear(src[len(dst):])
+	cleanLabels(src[len(dst):])
 	x.Labels = dst
 }
 

lib/promutils/labelscompressor.go

@@ -218,6 +218,8 @@ func (lm *labelsMap) moveMutableToReadOnlyLocked(pReadOnly *[]*prompbmarshal.Lab
 			labels = append(labels, pLabel)
 		}
 	}
-	clear(lm.mutable)
+	for k := range lm.mutable {
+		delete(lm.mutable, k)
+	}
 	lm.readOnly.Store(&labels)
 }

lib/protoparser/opentelemetry/stream/sanitize.go

@@ -2,17 +2,14 @@ package stream
 
 import (
 	"flag"
-	"slices"
 	"strings"
 
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/promrelabel"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/protoparser/opentelemetry/pb"
 )
 
-var (
-	usePrometheusNaming = flag.Bool("opentelemetry.usePrometheusNaming", false, "Whether to convert metric names and labels into Prometheus-compatible format for the metrics ingested "+
-		"via OpenTelemetry protocol; see https://docs.victoriametrics.com/#sending-data-via-opentelemetry")
-)
+var usePrometheusNaming = flag.Bool("opentelemetry.usePrometheusNaming", false, "Whether to convert metric names and labels into Prometheus-compatible format for the metrics ingested "+
+	"via OpenTelemetry protocol; see https://docs.victoriametrics.com/#sending-data-via-opentelemetry")
 
 // unitMap is obtained from https://github.com/open-telemetry/opentelemetry-collector-contrib/blob/b8655058501bed61a06bb660869051491f46840b/pkg/translator/prometheus/normalize_name.go#L19
 var unitMap = map[string]string{
@@ -91,6 +88,15 @@ func sanitizeMetricName(m *pb.Metric) string {
 	return sanitizePrometheusMetricName(m)
 }
 
+func contains(src []string, value string) bool {
+	for _, v := range src {
+		if v == value {
+			return true
+		}
+	}
+	return false
+}
+
 func sanitizePrometheusMetricName(m *pb.Metric) string {
 	nameTokens := promrelabel.SplitMetricNameToTokens(m.Name)
 
@@ -101,7 +107,7 @@ func sanitizePrometheusMetricName(m *pb.Metric) string {
 			if u, ok := unitMap[mainUnit]; ok {
 				mainUnit = u
 			}
-			if mainUnit != "" && !slices.Contains(nameTokens, mainUnit) {
+			if mainUnit != "" && !contains(nameTokens, mainUnit) {
 				nameTokens = append(nameTokens, mainUnit)
 			}
 		}
@@ -112,7 +118,7 @@ func sanitizePrometheusMetricName(m *pb.Metric) string {
 				if u, ok := perUnitMap[perUnit]; ok {
 					perUnit = u
 				}
-				if perUnit != "" && !slices.Contains(nameTokens, perUnit) {
+				if perUnit != "" && !contains(nameTokens, perUnit) {
 					nameTokens = append(nameTokens, "per", perUnit)
 				}
 			}

lib/protoparser/opentelemetry/stream/streamparser.go

@@ -238,7 +238,11 @@ type writeContext struct {
 func (wr *writeContext) reset() {
 	wr.bb.Reset()
 
-	clear(wr.tss)
+	for i := range wr.tss {
+		ts := &wr.tss[i]
+		ts.Labels = nil
+		ts.Samples = nil
+	}
 	wr.tss = wr.tss[:0]
 
 	wr.baseLabels = resetLabels(wr.baseLabels)
@@ -249,7 +253,9 @@ func (wr *writeContext) reset() {
 }
 
 func resetLabels(labels []prompbmarshal.Label) []prompbmarshal.Label {
-	clear(labels)
+	for i := range labels {
+		labels[i] = prompbmarshal.Label{}
+	}
 	return labels[:0]
 }