vendor: update github.com/VictoriaMetrics/metrics to v1.6.1

go.mod

@@ -2,7 +2,7 @@ module github.com/VictoriaMetrics/VictoriaMetrics
 
 require (
 	github.com/VictoriaMetrics/fastcache v1.5.1
-	github.com/VictoriaMetrics/metrics v1.5.0
+	github.com/VictoriaMetrics/metrics v1.6.1
 	github.com/cespare/xxhash/v2 v2.0.1-0.20190104013014-3767db7a7e18
 	github.com/golang/snappy v0.0.1
 	github.com/spaolacci/murmur3 v1.1.0 // indirect

go.sum

@@ -3,8 +3,8 @@ github.com/OneOfOne/xxhash v1.2.5 h1:zl/OfRA6nftbBK9qTohYBJ5xvw6C/oNKizR7cZGl3cI
 github.com/OneOfOne/xxhash v1.2.5/go.mod h1:eZbhyaAYD41SGSSsnmcpxVoRiQ/MPUTjUdIIOT9Um7Q=
 github.com/VictoriaMetrics/fastcache v1.5.1 h1:qHgHjyoNFV7jgucU8QZUuU4gcdhfs8QW1kw68OD2Lag=
 github.com/VictoriaMetrics/fastcache v1.5.1/go.mod h1:+jv9Ckb+za/P1ZRg/sulP5Ni1v49daAVERr0H3CuscE=
-github.com/VictoriaMetrics/metrics v1.5.0 h1:WvQqPn+z9pR1U7J58CgaGiWrN8phNGSpr2xUSxJnfpE=
+github.com/VictoriaMetrics/metrics v1.6.1 h1:jHLmdFDuoXJC41FVvYVLoMzRieu7MOxFjYZdPHBN0EQ=
-github.com/VictoriaMetrics/metrics v1.5.0/go.mod h1:QZAL5yLaXvhSPeib0ahluGo9VK0HXDZHovKaKlpuWvs=
+github.com/VictoriaMetrics/metrics v1.6.1/go.mod h1:QZAL5yLaXvhSPeib0ahluGo9VK0HXDZHovKaKlpuWvs=
 github.com/allegro/bigcache v1.2.1-0.20190218064605-e24eb225f156 h1:eMwmnE/GDgah4HI848JfFxHt+iPb26b4zyfspmqY0/8=
 github.com/allegro/bigcache v1.2.1-0.20190218064605-e24eb225f156/go.mod h1:Cb/ax3seSYIx7SuZdm2G2xzfwmv3TPSk2ucNfQESPXM=
 github.com/cespare/xxhash v1.1.0 h1:a6HrQnmkObjyL+Gs60czilIUGqrzKutQD6XZog3p+ko=

vendor/github.com/VictoriaMetrics/metrics/README.md

@@ -13,6 +13,7 @@
   See [this article](https://medium.com/@valyala/stripping-dependency-bloat-in-victoriametrics-docker-image-983fb5912b0d) for details.
 * Easy to use. See the [API docs](http://godoc.org/github.com/VictoriaMetrics/metrics).
 * Fast.
+* Allows exporting distinct metric sets via distinct endpoints. See [Set](http://godoc.org/github.com/VictoriaMetrics/metrics#Set).
 
 
 ### Limitations

vendor/github.com/VictoriaMetrics/metrics/set.go

@@ -14,9 +14,10 @@ import (
 //
 // Set.WritePrometheus must be called for exporting metrics from the set.
 type Set struct {
-	mu sync.Mutex
+	mu        sync.Mutex
-	a  []*namedMetric
+	a         []*namedMetric
-	m  map[string]*namedMetric
+	m         map[string]*namedMetric
+	summaries []*Summary
 }
 
 // NewSet creates new set of metrics.
@@ -32,6 +33,9 @@ func (s *Set) WritePrometheus(w io.Writer) {
 		return s.a[i].name < s.a[j].name
 	}
 	s.mu.Lock()
+	for _, sm := range s.summaries {
+		sm.updateQuantiles()
+	}
 	if !sort.SliceIsSorted(s.a, lessFunc) {
 		sort.Slice(s.a, lessFunc)
 	}
@@ -200,6 +204,9 @@ func (s *Set) NewSummaryExt(name string, window time.Duration, quantiles []float
 	s.registerMetric(name, sm)
 	registerSummary(sm)
 	s.registerSummaryQuantiles(name, sm)
+	s.mu.Lock()
+	s.summaries = append(s.summaries, sm)
+	s.mu.Unlock()
 	return sm
 }
 
@@ -258,6 +265,7 @@ func (s *Set) GetOrCreateSummaryExt(name string, window time.Duration, quantiles
 			registerSummary(sm)
 			mustRegisterQuantiles = true
 		}
+		s.summaries = append(s.summaries, sm)
 		s.mu.Unlock()
 		if mustRegisterQuantiles {
 			s.registerSummaryQuantiles(name, sm)

vendor/github.com/VictoriaMetrics/metrics/summary.go

@@ -24,6 +24,9 @@ type Summary struct {
 	quantiles      []float64
 	quantileValues []float64
 
+	sum   float64
+	count uint64
+
 	window time.Duration
 }
 
@@ -83,6 +86,8 @@ func (sm *Summary) Update(v float64) {
 	sm.mu.Lock()
 	sm.curr.Update(v)
 	sm.next.Update(v)
+	sm.sum += v
+	sm.count++
 	sm.mu.Unlock()
 }
 
@@ -93,9 +98,18 @@ func (sm *Summary) UpdateDuration(startTime time.Time) {
 }
 
 func (sm *Summary) marshalTo(prefix string, w io.Writer) {
-	// Just update sm.quantileValues and don't write anything to w.
+	// Marshal only *_sum and *_count values.
+	// Quantile values should be already updated by the caller via sm.updateQuantiles() call.
 	// sm.quantileValues will be marshaled later via quantileValue.marshalTo.
-	sm.updateQuantiles()
+	sm.mu.Lock()
+	sum := sm.sum
+	count := sm.count
+	sm.mu.Unlock()
+
+	if count > 0 {
+		fmt.Fprintf(w, "%s_sum %g\n", prefix, sum)
+		fmt.Fprintf(w, "%s_count %d\n", prefix, count)
+	}
 }
 
 func (sm *Summary) updateQuantiles() {

vendor/modules.txt

@@ -1,6 +1,6 @@
 # github.com/VictoriaMetrics/fastcache v1.5.1
 github.com/VictoriaMetrics/fastcache
-# github.com/VictoriaMetrics/metrics v1.5.0
+# github.com/VictoriaMetrics/metrics v1.6.1
 github.com/VictoriaMetrics/metrics
 # github.com/cespare/xxhash/v2 v2.0.1-0.20190104013014-3767db7a7e18
 github.com/cespare/xxhash/v2