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Merge pull request #13215 from fpetkovski/float-histogram-reuse

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Enable reusing memory when converting between histogram types
This commit is contained in:
Björn Rabenstein 2023-12-09 22:44:46 +01:00 committed by GitHub
parent 91a383f52c 9008271df5
commit db915b07cb
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GPG key ID: 4AEE18F83AFDEB23
20 changed files with 151 additions and 104 deletions
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79
model/histogram/histogram.go
View file

@ -282,50 +282,49 @@ func (h *Histogram) Compact(maxEmptyBuckets int) *Histogram {
return h
}
// ToFloat returns a FloatHistogram representation of the Histogram. It is a
// deep copy (e.g. spans are not shared).
func (h *Histogram) ToFloat() *FloatHistogram {
var (
positiveSpans, negativeSpans []Span
positiveBuckets, negativeBuckets []float64
)
if len(h.PositiveSpans) != 0 {
positiveSpans = make([]Span, len(h.PositiveSpans))
copy(positiveSpans, h.PositiveSpans)
// ToFloat returns a FloatHistogram representation of the Histogram. It is a deep
// copy (e.g. spans are not shared). The function accepts a FloatHistogram as an
// argument whose memory will be reused and overwritten if provided. If this
// argument is nil, a new FloatHistogram will be allocated.
func (h *Histogram) ToFloat(fh *FloatHistogram) *FloatHistogram {
if fh == nil {
fh = &FloatHistogram{}
}
if len(h.NegativeSpans) != 0 {
negativeSpans = make([]Span, len(h.NegativeSpans))
copy(negativeSpans, h.NegativeSpans)
}
if len(h.PositiveBuckets) != 0 {
positiveBuckets = make([]float64, len(h.PositiveBuckets))
var current float64
for i, b := range h.PositiveBuckets {
current += float64(b)
positiveBuckets[i] = current
}
}
if len(h.NegativeBuckets) != 0 {
negativeBuckets = make([]float64, len(h.NegativeBuckets))
var current float64
for i, b := range h.NegativeBuckets {
current += float64(b)
negativeBuckets[i] = current
}
fh.CounterResetHint = h.CounterResetHint
fh.Schema = h.Schema
fh.ZeroThreshold = h.ZeroThreshold
fh.ZeroCount = float64(h.ZeroCount)
fh.Count = float64(h.Count)
fh.Sum = h.Sum
fh.PositiveSpans = resize(fh.PositiveSpans, len(h.PositiveSpans))
copy(fh.PositiveSpans, h.PositiveSpans)
fh.NegativeSpans = resize(fh.NegativeSpans, len(h.NegativeSpans))
copy(fh.NegativeSpans, h.NegativeSpans)
fh.PositiveBuckets = resize(fh.PositiveBuckets, len(h.PositiveBuckets))
var currentPositive float64
for i, b := range h.PositiveBuckets {
currentPositive += float64(b)
fh.PositiveBuckets[i] = currentPositive
}
return &FloatHistogram{
CounterResetHint: h.CounterResetHint,
Schema: h.Schema,
ZeroThreshold: h.ZeroThreshold,
ZeroCount: float64(h.ZeroCount),
Count: float64(h.Count),
Sum: h.Sum,
PositiveSpans: positiveSpans,
NegativeSpans: negativeSpans,
PositiveBuckets: positiveBuckets,
NegativeBuckets: negativeBuckets,
fh.NegativeBuckets = resize(fh.NegativeBuckets, len(h.NegativeBuckets))
var currentNegative float64
for i, b := range h.NegativeBuckets {
currentNegative += float64(b)
fh.NegativeBuckets[i] = currentNegative
}
return fh
}
func resize[T any](items []T, n int) []T {
if cap(items) < n {
return make([]T, n)
}
return items[:n]
}
// Validate validates consistency between span and bucket slices. Also, buckets are checked

58
model/histogram/histogram_test.go
View file

@ -408,9 +408,57 @@ func TestHistogramToFloat(t *testing.T) {
},
NegativeBuckets: []int64{1, 2, -2, 1, -1, 0},
}
fh := h.ToFloat()
cases := []struct {
name string
fh *FloatHistogram
}{
{name: "without prior float histogram"},
{name: "prior float histogram with more buckets", fh: &FloatHistogram{
Schema: 2,
Count: 3,
Sum: 5,
ZeroThreshold: 4,
ZeroCount: 1,
PositiveSpans: []Span{
{Offset: 1, Length: 2},
{Offset: 1, Length: 2},
{Offset: 1, Length: 2},
},
PositiveBuckets: []float64{1, 2, 3, 4, 5, 6, 7, 8, 9},
NegativeSpans: []Span{
{Offset: 20, Length: 6},
{Offset: 12, Length: 7},
{Offset: 33, Length: 10},
},
NegativeBuckets: []float64{1, 2, 3, 4, 5, 6, 7, 8, 9},
}},
{name: "prior float histogram with fewer buckets", fh: &FloatHistogram{
Schema: 2,
Count: 3,
Sum: 5,
ZeroThreshold: 4,
ZeroCount: 1,
PositiveSpans: []Span{
{Offset: 1, Length: 2},
{Offset: 1, Length: 2},
{Offset: 1, Length: 2},
},
PositiveBuckets: []float64{1, 2},
NegativeSpans: []Span{
{Offset: 20, Length: 6},
{Offset: 12, Length: 7},
{Offset: 33, Length: 10},
},
NegativeBuckets: []float64{1, 2},
}},
}
require.Equal(t, h.String(), fh.String())
for _, c := range cases {
t.Run(c.name, func(t *testing.T) {
fh := h.ToFloat(c.fh)
require.Equal(t, h.String(), fh.String())
})
}
}
// TestHistogramEquals tests both Histogram and FloatHistogram.
@ -436,14 +484,14 @@ func TestHistogramEquals(t *testing.T) {
equals := func(h1, h2 Histogram) {
require.True(t, h1.Equals(&h2))
require.True(t, h2.Equals(&h1))
h1f, h2f := h1.ToFloat(), h2.ToFloat()
h1f, h2f := h1.ToFloat(nil), h2.ToFloat(nil)
require.True(t, h1f.Equals(h2f))
require.True(t, h2f.Equals(h1f))
}
notEquals := func(h1, h2 Histogram) {
require.False(t, h1.Equals(&h2))
require.False(t, h2.Equals(&h1))
h1f, h2f := h1.ToFloat(), h2.ToFloat()
h1f, h2f := h1.ToFloat(nil), h2.ToFloat(nil)
require.False(t, h1f.Equals(h2f))
require.False(t, h2f.Equals(h1f))
}
@ -950,7 +998,7 @@ func TestHistogramValidation(t *testing.T) {
return
}
fh := tc.h.ToFloat()
fh := tc.h.ToFloat(nil)
if err := fh.Validate(); tc.errMsg != "" {
require.EqualError(t, err, tc.errMsg)
} else {

20
promql/engine_test.go
View file

@ -3267,7 +3267,7 @@ func TestNativeHistogram_HistogramCountAndSum(t *testing.T) {
app := storage.Appender(context.Background())
var err error
if floatHisto {
_, err = app.AppendHistogram(0, lbls, ts, nil, h.ToFloat())
_, err = app.AppendHistogram(0, lbls, ts, nil, h.ToFloat(nil))
} else {
_, err = app.AppendHistogram(0, lbls, ts, h, nil)
}
@ -3287,7 +3287,7 @@ func TestNativeHistogram_HistogramCountAndSum(t *testing.T) {
require.Len(t, vector, 1)
require.Nil(t, vector[0].H)
if floatHisto {
require.Equal(t, h.ToFloat().Count, vector[0].F)
require.Equal(t, h.ToFloat(nil).Count, vector[0].F)
} else {
require.Equal(t, float64(h.Count), vector[0].F)
}
@ -3305,7 +3305,7 @@ func TestNativeHistogram_HistogramCountAndSum(t *testing.T) {
require.Len(t, vector, 1)
require.Nil(t, vector[0].H)
if floatHisto {
require.Equal(t, h.ToFloat().Sum, vector[0].F)
require.Equal(t, h.ToFloat(nil).Sum, vector[0].F)
} else {
require.Equal(t, h.Sum, vector[0].F)
}
@ -3433,7 +3433,7 @@ func TestNativeHistogram_HistogramStdDevVar(t *testing.T) {
app := storage.Appender(context.Background())
var err error
if floatHisto {
_, err = app.AppendHistogram(0, lbls, ts, nil, tc.h.ToFloat())
_, err = app.AppendHistogram(0, lbls, ts, nil, tc.h.ToFloat(nil))
} else {
_, err = app.AppendHistogram(0, lbls, ts, tc.h, nil)
}
@ -3678,7 +3678,7 @@ func TestNativeHistogram_HistogramQuantile(t *testing.T) {
app := storage.Appender(context.Background())
var err error
if floatHisto {
_, err = app.AppendHistogram(0, lbls, ts, nil, c.h.ToFloat())
_, err = app.AppendHistogram(0, lbls, ts, nil, c.h.ToFloat(nil))
} else {
_, err = app.AppendHistogram(0, lbls, ts, c.h, nil)
}
@ -4109,7 +4109,7 @@ func TestNativeHistogram_HistogramFraction(t *testing.T) {
app := storage.Appender(context.Background())
var err error
if floatHisto {
_, err = app.AppendHistogram(0, lbls, ts, nil, c.h.ToFloat())
_, err = app.AppendHistogram(0, lbls, ts, nil, c.h.ToFloat(nil))
} else {
_, err = app.AppendHistogram(0, lbls, ts, c.h, nil)
}
@ -4272,7 +4272,7 @@ func TestNativeHistogram_Sum_Count_Add_AvgOperator(t *testing.T) {
// Since we mutate h later, we need to create a copy here.
var err error
if floatHisto {
_, err = app.AppendHistogram(0, lbls, ts, nil, h.Copy().ToFloat())
_, err = app.AppendHistogram(0, lbls, ts, nil, h.Copy().ToFloat(nil))
} else {
_, err = app.AppendHistogram(0, lbls, ts, h.Copy(), nil)
}
@ -4282,7 +4282,7 @@ func TestNativeHistogram_Sum_Count_Add_AvgOperator(t *testing.T) {
newTs := ts + int64(idx1)*int64(time.Minute/time.Millisecond)
// Since we mutate h later, we need to create a copy here.
if floatHisto {
_, err = app.AppendHistogram(0, lbls, newTs, nil, h.Copy().ToFloat())
_, err = app.AppendHistogram(0, lbls, newTs, nil, h.Copy().ToFloat(nil))
} else {
_, err = app.AppendHistogram(0, lbls, newTs, h.Copy(), nil)
}
@ -4530,7 +4530,7 @@ func TestNativeHistogram_SubOperator(t *testing.T) {
// Since we mutate h later, we need to create a copy here.
var err error
if floatHisto {
_, err = app.AppendHistogram(0, lbls, ts, nil, h.Copy().ToFloat())
_, err = app.AppendHistogram(0, lbls, ts, nil, h.Copy().ToFloat(nil))
} else {
_, err = app.AppendHistogram(0, lbls, ts, h.Copy(), nil)
}
@ -4687,7 +4687,7 @@ func TestNativeHistogram_MulDivOperator(t *testing.T) {
// Since we mutate h later, we need to create a copy here.
var err error
if floatHisto {
_, err = app.AppendHistogram(0, lbls, ts, nil, h.Copy().ToFloat())
_, err = app.AppendHistogram(0, lbls, ts, nil, h.Copy().ToFloat(nil))
} else {
_, err = app.AppendHistogram(0, lbls, ts, h.Copy(), nil)
}

4
rules/manager_test.go
View file

@ -1390,9 +1390,9 @@ func TestNativeHistogramsInRecordingRules(t *testing.T) {
require.Equal(t, labels.FromStrings("__name__", "sum:histogram_metric"), s.Labels())
expHist := hists[0].ToFloat()
expHist := hists[0].ToFloat(nil)
for _, h := range hists[1:] {
expHist = expHist.Add(h.ToFloat())
expHist = expHist.Add(h.ToFloat(nil))
}
it := s.Iterator(nil)

2
scrape/target_test.go
View file

@ -565,7 +565,7 @@ func TestBucketLimitAppender(t *testing.T) {
lbls := labels.FromStrings("__name__", "sparse_histogram_series")
var err error
if floatHisto {
fh := c.h.Copy().ToFloat()
fh := c.h.Copy().ToFloat(nil)
_, err = app.AppendHistogram(0, lbls, ts, nil, fh)
if c.expectError {
require.Error(t, err)

4
storage/buffer.go
View file

@ -202,7 +202,7 @@ func (s hSample) H() *histogram.Histogram {
}
func (s hSample) FH() *histogram.FloatHistogram {
return s.h.ToFloat()
return s.h.ToFloat(nil)
}
func (s hSample) Type() chunkenc.ValueType {
@ -376,7 +376,7 @@ func (it *sampleRingIterator) AtHistogram() (int64, *histogram.Histogram) {
func (it *sampleRingIterator) AtFloatHistogram() (int64, *histogram.FloatHistogram) {
if it.fh == nil {
return it.t, it.h.ToFloat()
return it.t, it.h.ToFloat(nil)
}
return it.t, it.fh
}

6
storage/buffer_test.go
View file

@ -233,7 +233,7 @@ func TestBufferedSeriesIteratorMixedHistograms(t *testing.T) {
histograms := tsdbutil.GenerateTestHistograms(2)
it := NewBufferIterator(NewListSeriesIterator(samples{
fhSample{t: 1, fh: histograms[0].ToFloat()},
fhSample{t: 1, fh: histograms[0].ToFloat(nil)},
hSample{t: 2, h: histograms[1]},
}), 2)
@ -244,11 +244,11 @@ func TestBufferedSeriesIteratorMixedHistograms(t *testing.T) {
require.Equal(t, chunkenc.ValFloatHistogram, buf.Next())
_, fh := buf.AtFloatHistogram()
require.Equal(t, histograms[0].ToFloat(), fh)
require.Equal(t, histograms[0].ToFloat(nil), fh)
require.Equal(t, chunkenc.ValHistogram, buf.Next())
_, fh = buf.AtFloatHistogram()
require.Equal(t, histograms[1].ToFloat(), fh)
require.Equal(t, histograms[1].ToFloat(nil), fh)
}
func BenchmarkBufferedSeriesIterator(b *testing.B) {

4
storage/remote/codec_test.go
View file

@ -57,7 +57,7 @@ var writeRequestFixture = &prompb.WriteRequest{
},
Samples: []prompb.Sample{{Value: 1, Timestamp: 0}},
Exemplars: []prompb.Exemplar{{Labels: []prompb.Label{{Name: "f", Value: "g"}}, Value: 1, Timestamp: 0}},
Histograms: []prompb.Histogram{HistogramToHistogramProto(0, &testHistogram), FloatHistogramToHistogramProto(1, testHistogram.ToFloat())},
Histograms: []prompb.Histogram{HistogramToHistogramProto(0, &testHistogram), FloatHistogramToHistogramProto(1, testHistogram.ToFloat(nil))},
},
{
Labels: []prompb.Label{
@ -69,7 +69,7 @@ var writeRequestFixture = &prompb.WriteRequest{
},
Samples: []prompb.Sample{{Value: 2, Timestamp: 1}},
Exemplars: []prompb.Exemplar{{Labels: []prompb.Label{{Name: "h", Value: "i"}}, Value: 2, Timestamp: 1}},
Histograms: []prompb.Histogram{HistogramToHistogramProto(2, &testHistogram), FloatHistogramToHistogramProto(3, testHistogram.ToFloat())},
Histograms: []prompb.Histogram{HistogramToHistogramProto(2, &testHistogram), FloatHistogramToHistogramProto(3, testHistogram.ToFloat(nil))},
},
},
}

2
storage/remote/queue_manager_test.go
View file

@ -619,7 +619,7 @@ func createHistograms(numSamples, numSeries int, floatHistogram bool) ([]record.
fh := record.RefFloatHistogramSample{
Ref: chunks.HeadSeriesRef(i),
T: int64(j),
FH: hist.ToFloat(),
FH: hist.ToFloat(nil),
}
floatHistograms = append(floatHistograms, fh)
} else {

2
storage/remote/write_handler_test.go
View file

@ -134,7 +134,7 @@ func TestOutOfOrderExemplar(t *testing.T) {
func TestOutOfOrderHistogram(t *testing.T) {
buf, _, err := buildWriteRequest([]prompb.TimeSeries{{
Labels: []prompb.Label{{Name: "__name__", Value: "test_metric"}},
Histograms: []prompb.Histogram{HistogramToHistogramProto(0, &testHistogram), FloatHistogramToHistogramProto(1, testHistogram.ToFloat())},
Histograms: []prompb.Histogram{HistogramToHistogramProto(0, &testHistogram), FloatHistogramToHistogramProto(1, testHistogram.ToFloat(nil))},
}}, nil, nil, nil)
require.NoError(t, err)

4
tsdb/block_test.go
View file

@ -656,7 +656,7 @@ func genHistogramSeries(totalSeries, labelCount int, mint, maxt, step int64, flo
h.CounterResetHint = histogram.NotCounterReset
}
if floatHistogram {
return sample{t: ts, fh: h.ToFloat()}
return sample{t: ts, fh: h.ToFloat(nil)}
}
return sample{t: ts, h: h}
})
@ -692,7 +692,7 @@ func genHistogramAndFloatSeries(totalSeries, labelCount int, mint, maxt, step in
h.CounterResetHint = histogram.NotCounterReset
}
if floatHistogram {
s = sample{t: ts, fh: h.ToFloat()}
s = sample{t: ts, fh: h.ToFloat(nil)}
} else {
s = sample{t: ts, h: h}
}

22
tsdb/chunkenc/float_histogram_test.go
View file

@ -94,10 +94,10 @@ func TestFloatHistogramChunkSameBuckets(t *testing.T) {
},
NegativeBuckets: []int64{2, 1, -1, -1}, // counts: 2, 3, 2, 1 (total 8)
}
chk, _, app, err := app.AppendFloatHistogram(nil, ts, h.ToFloat(), false)
chk, _, app, err := app.AppendFloatHistogram(nil, ts, h.ToFloat(nil), false)
require.NoError(t, err)
require.Nil(t, chk)
exp = append(exp, floatResult{t: ts, h: h.ToFloat()})
exp = append(exp, floatResult{t: ts, h: h.ToFloat(nil)})
require.Equal(t, 1, c.NumSamples())
// Add an updated histogram.
@ -108,10 +108,10 @@ func TestFloatHistogramChunkSameBuckets(t *testing.T) {
h.Sum = 24.4
h.PositiveBuckets = []int64{5, -2, 1, -2} // counts: 5, 3, 4, 2 (total 14)
h.NegativeBuckets = []int64{4, -1, 1, -1} // counts: 4, 3, 4, 4 (total 15)
chk, _, _, err = app.AppendFloatHistogram(nil, ts, h.ToFloat(), false)
chk, _, _, err = app.AppendFloatHistogram(nil, ts, h.ToFloat(nil), false)
require.NoError(t, err)
require.Nil(t, chk)
expH := h.ToFloat()
expH := h.ToFloat(nil)
expH.CounterResetHint = histogram.NotCounterReset
exp = append(exp, floatResult{t: ts, h: expH})
require.Equal(t, 2, c.NumSamples())
@ -127,10 +127,10 @@ func TestFloatHistogramChunkSameBuckets(t *testing.T) {
h.Sum = 24.4
h.PositiveBuckets = []int64{6, 1, -3, 6} // counts: 6, 7, 4, 10 (total 27)
h.NegativeBuckets = []int64{5, 1, -2, 3} // counts: 5, 6, 4, 7 (total 22)
chk, _, _, err = app.AppendFloatHistogram(nil, ts, h.ToFloat(), false)
chk, _, _, err = app.AppendFloatHistogram(nil, ts, h.ToFloat(nil), false)
require.NoError(t, err)
require.Nil(t, chk)
expH = h.ToFloat()
expH = h.ToFloat(nil)
expH.CounterResetHint = histogram.NotCounterReset
exp = append(exp, floatResult{t: ts, h: expH})
require.Equal(t, 3, c.NumSamples())
@ -217,7 +217,7 @@ func TestFloatHistogramChunkBucketChanges(t *testing.T) {
NegativeBuckets: []int64{1},
}
chk, _, app, err := app.AppendFloatHistogram(nil, ts1, h1.ToFloat(), false)
chk, _, app, err := app.AppendFloatHistogram(nil, ts1, h1.ToFloat(nil), false)
require.NoError(t, err)
require.Nil(t, chk)
require.Equal(t, 1, c.NumSamples())
@ -245,13 +245,13 @@ func TestFloatHistogramChunkBucketChanges(t *testing.T) {
h2.NegativeBuckets = []int64{2, -1} // 2 1 (total 3)
// This is how span changes will be handled.
hApp, _ := app.(*FloatHistogramAppender)
posInterjections, negInterjections, ok, cr := hApp.appendable(h2.ToFloat())
posInterjections, negInterjections, ok, cr := hApp.appendable(h2.ToFloat(nil))
require.NotEmpty(t, posInterjections)
require.NotEmpty(t, negInterjections)
require.True(t, ok) // Only new buckets came in.
require.False(t, cr)
c, app = hApp.recode(posInterjections, negInterjections, h2.PositiveSpans, h2.NegativeSpans)
chk, _, _, err = app.AppendFloatHistogram(nil, ts2, h2.ToFloat(), false)
chk, _, _, err = app.AppendFloatHistogram(nil, ts2, h2.ToFloat(nil), false)
require.NoError(t, err)
require.Nil(t, chk)
require.Equal(t, 2, c.NumSamples())
@ -263,10 +263,10 @@ func TestFloatHistogramChunkBucketChanges(t *testing.T) {
h1.PositiveBuckets = []int64{6, -3, -3, 3, -3, 0, 2, 2, 1, -5, 1}
h1.NegativeSpans = h2.NegativeSpans
h1.NegativeBuckets = []int64{0, 1}
expH2 := h2.ToFloat()
expH2 := h2.ToFloat(nil)
expH2.CounterResetHint = histogram.NotCounterReset
exp := []floatResult{
{t: ts1, h: h1.ToFloat()},
{t: ts1, h: h1.ToFloat(nil)},
{t: ts2, h: expH2},
}
it := c.Iterator(nil)

10
tsdb/chunkenc/histogram_test.go
View file

@ -98,7 +98,7 @@ func TestHistogramChunkSameBuckets(t *testing.T) {
chk, _, app, err := app.AppendHistogram(nil, ts, h, false)
require.NoError(t, err)
require.Nil(t, chk)
exp = append(exp, result{t: ts, h: h, fh: h.ToFloat()})
exp = append(exp, result{t: ts, h: h, fh: h.ToFloat(nil)})
require.Equal(t, 1, c.NumSamples())
// Add an updated histogram.
@ -114,7 +114,7 @@ func TestHistogramChunkSameBuckets(t *testing.T) {
require.Nil(t, chk)
hExp := h.Copy()
hExp.CounterResetHint = histogram.NotCounterReset
exp = append(exp, result{t: ts, h: hExp, fh: hExp.ToFloat()})
exp = append(exp, result{t: ts, h: hExp, fh: hExp.ToFloat(nil)})
require.Equal(t, 2, c.NumSamples())
// Add update with new appender.
@ -133,7 +133,7 @@ func TestHistogramChunkSameBuckets(t *testing.T) {
require.Nil(t, chk)
hExp = h.Copy()
hExp.CounterResetHint = histogram.NotCounterReset
exp = append(exp, result{t: ts, h: hExp, fh: hExp.ToFloat()})
exp = append(exp, result{t: ts, h: hExp, fh: hExp.ToFloat(nil)})
require.Equal(t, 3, c.NumSamples())
// 1. Expand iterator in simple case.
@ -278,8 +278,8 @@ func TestHistogramChunkBucketChanges(t *testing.T) {
hExp := h2.Copy()
hExp.CounterResetHint = histogram.NotCounterReset
exp := []result{
{t: ts1, h: h1, fh: h1.ToFloat()},
{t: ts2, h: hExp, fh: hExp.ToFloat()},
{t: ts1, h: h1, fh: h1.ToFloat(nil)},
{t: ts2, h: hExp, fh: hExp.ToFloat(nil)},
}
it := c.Iterator(nil)
var act []result

4
tsdb/compact_test.go
View file

@ -1402,8 +1402,8 @@ func TestHeadCompactionWithHistograms(t *testing.T) {
for tsMinute := from; tsMinute <= to; tsMinute++ {
var err error
if floatTest {
_, err = app.AppendHistogram(0, lbls, minute(tsMinute), nil, h.ToFloat())
efh := h.ToFloat()
_, err = app.AppendHistogram(0, lbls, minute(tsMinute), nil, h.ToFloat(nil))
efh := h.ToFloat(nil)
if tsMinute == from {
efh.CounterResetHint = histogram.UnknownCounterReset
} else {

14
tsdb/db_test.go
View file

@ -519,7 +519,7 @@ func TestAmendHistogramDatapointCausesError(t *testing.T) {
},
PositiveBuckets: []int64{1, 2, -2, 1, -1, 0, 0},
}
fh := h.ToFloat()
fh := h.ToFloat(nil)
app = db.Appender(ctx)
_, err = app.AppendHistogram(0, labels.FromStrings("a", "c"), 0, h.Copy(), nil)
@ -6392,8 +6392,8 @@ func testHistogramAppendAndQueryHelper(t *testing.T, floatHistogram bool) {
var err error
app := db.Appender(ctx)
if floatHistogram {
_, err = app.AppendHistogram(0, lbls, minute(tsMinute), nil, h.ToFloat())
efh := h.ToFloat()
_, err = app.AppendHistogram(0, lbls, minute(tsMinute), nil, h.ToFloat(nil))
efh := h.ToFloat(nil)
efh.CounterResetHint = expCRH
*exp = append(*exp, sample{t: minute(tsMinute), fh: efh})
} else {
@ -6814,20 +6814,20 @@ func TestNativeHistogramFlag(t *testing.T) {
// Disabled by default.
_, err = app.AppendHistogram(0, l, 100, h, nil)
require.Equal(t, storage.ErrNativeHistogramsDisabled, err)
_, err = app.AppendHistogram(0, l, 105, nil, h.ToFloat())
_, err = app.AppendHistogram(0, l, 105, nil, h.ToFloat(nil))
require.Equal(t, storage.ErrNativeHistogramsDisabled, err)
// Enable and append.
db.EnableNativeHistograms()
_, err = app.AppendHistogram(0, l, 200, h, nil)
require.NoError(t, err)
_, err = app.AppendHistogram(0, l, 205, nil, h.ToFloat())
_, err = app.AppendHistogram(0, l, 205, nil, h.ToFloat(nil))
require.NoError(t, err)
db.DisableNativeHistograms()
_, err = app.AppendHistogram(0, l, 300, h, nil)
require.Equal(t, storage.ErrNativeHistogramsDisabled, err)
_, err = app.AppendHistogram(0, l, 305, nil, h.ToFloat())
_, err = app.AppendHistogram(0, l, 305, nil, h.ToFloat(nil))
require.Equal(t, storage.ErrNativeHistogramsDisabled, err)
require.NoError(t, app.Commit())
@ -6836,7 +6836,7 @@ func TestNativeHistogramFlag(t *testing.T) {
require.NoError(t, err)
act := query(t, q, labels.MustNewMatcher(labels.MatchEqual, "foo", "bar"))
require.Equal(t, map[string][]chunks.Sample{
l.String(): {sample{t: 200, h: h}, sample{t: 205, fh: h.ToFloat()}},
l.String(): {sample{t: 200, h: h}, sample{t: 205, fh: h.ToFloat(nil)}},
}, act)
}

10
tsdb/head_test.go
View file

@ -4082,8 +4082,8 @@ func testHistogramStaleSampleHelper(t *testing.T, floatHistogram bool) {
for _, h := range tsdbutil.GenerateTestHistograms(numHistograms) {
var err error
if floatHistogram {
_, err = app.AppendHistogram(0, l, 100*int64(len(expHistograms)), nil, h.ToFloat())
expHistograms = append(expHistograms, timedHistogram{t: 100 * int64(len(expHistograms)), fh: h.ToFloat()})
_, err = app.AppendHistogram(0, l, 100*int64(len(expHistograms)), nil, h.ToFloat(nil))
expHistograms = append(expHistograms, timedHistogram{t: 100 * int64(len(expHistograms)), fh: h.ToFloat(nil)})
} else {
_, err = app.AppendHistogram(0, l, 100*int64(len(expHistograms)), h, nil)
expHistograms = append(expHistograms, timedHistogram{t: 100 * int64(len(expHistograms)), h: h})
@ -4113,8 +4113,8 @@ func testHistogramStaleSampleHelper(t *testing.T, floatHistogram bool) {
for _, h := range tsdbutil.GenerateTestHistograms(2 * numHistograms)[numHistograms:] {
var err error
if floatHistogram {
_, err = app.AppendHistogram(0, l, 100*int64(len(expHistograms)), nil, h.ToFloat())
expHistograms = append(expHistograms, timedHistogram{t: 100 * int64(len(expHistograms)), fh: h.ToFloat()})
_, err = app.AppendHistogram(0, l, 100*int64(len(expHistograms)), nil, h.ToFloat(nil))
expHistograms = append(expHistograms, timedHistogram{t: 100 * int64(len(expHistograms)), fh: h.ToFloat(nil)})
} else {
_, err = app.AppendHistogram(0, l, 100*int64(len(expHistograms)), h, nil)
expHistograms = append(expHistograms, timedHistogram{t: 100 * int64(len(expHistograms)), h: h})
@ -4160,7 +4160,7 @@ func TestHistogramCounterResetHeader(t *testing.T) {
app := head.Appender(context.Background())
var err error
if floatHisto {
_, err = app.AppendHistogram(0, l, ts, nil, h.ToFloat())
_, err = app.AppendHistogram(0, l, ts, nil, h.ToFloat(nil))
} else {
_, err = app.AppendHistogram(0, l, ts, h.Copy(), nil)
}

2
tsdb/record/record_test.go
View file

@ -158,7 +158,7 @@ func TestRecord_EncodeDecode(t *testing.T) {
floatHistograms[i] = RefFloatHistogramSample{
Ref: h.Ref,
T: h.T,
FH: h.H.ToFloat(),
FH: h.H.ToFloat(nil),
}
}
decFloatHistograms, err := dec.FloatHistogramSamples(enc.FloatHistogramSamples(floatHistograms, nil), nil)

2
tsdb/wlog/watcher_test.go
View file

@ -199,7 +199,7 @@ func TestTailSamples(t *testing.T) {
floatHistogram := enc.FloatHistogramSamples([]record.RefFloatHistogramSample{{
Ref: chunks.HeadSeriesRef(inner),
T: now.UnixNano() + 1,
FH: hist.ToFloat(),
FH: hist.ToFloat(nil),
}}, nil)
require.NoError(t, w.Log(floatHistogram))
}

2
web/federate.go
View file

@ -138,7 +138,7 @@ Loop:
case chunkenc.ValFloat:
f = sample.F()
case chunkenc.ValHistogram:
fh = sample.H().ToFloat()
fh = sample.H().ToFloat(nil)
case chunkenc.ValFloatHistogram:
fh = sample.FH()
default:

4
web/federate_test.go
View file

@ -354,7 +354,7 @@ func TestFederationWithNativeHistograms(t *testing.T) {
_, err = app.AppendHistogram(0, l, 100*60*1000, histWithoutZeroBucket.Copy(), nil)
expVec = append(expVec, promql.Sample{
T: 100 * 60 * 1000,
H: histWithoutZeroBucket.ToFloat(),
H: histWithoutZeroBucket.ToFloat(nil),
Metric: expL,
})
default:
@ -363,7 +363,7 @@ func TestFederationWithNativeHistograms(t *testing.T) {
_, err = app.AppendHistogram(0, l, 100*60*1000, hist.Copy(), nil)
expVec = append(expVec, promql.Sample{
T: 100 * 60 * 1000,
H: hist.ToFloat(),
H: hist.ToFloat(nil),
Metric: expL,
})
}