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Merge pull request #426 from grafana/krajo/merge-upstream-main

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merge upstream main
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George Krajcsovits 2023-02-01 13:55:42 +01:00 committed by GitHub
parent d9063441c1 26936c4e91
commit 47a690022c
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3 changed files with 72 additions and 79 deletions
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9
docs/querying/api.md
View file

@ -449,9 +449,7 @@ raw numbers.
The keys `"histogram"` and `"histograms"` only show up if the experimental
native histograms are present in the response. Their placeholder `<histogram>`
is explained in detail in its own section below. Any one object will only have
the `"value"`/`"values"` key or the `"histogram"`/`"histograms"` key, but not
both.
is explained in detail in its own section below.
### Range vectors
@ -469,6 +467,9 @@ Range vectors are returned as result type `matrix`. The corresponding
]
```
Each series could have the `"values"` key, or the `"histograms"` key, or both.
For a given timestamp, there will only be one sample of either float or histogram type.
### Instant vectors
Instant vectors are returned as result type `vector`. The corresponding
@ -485,6 +486,8 @@ Instant vectors are returned as result type `vector`. The corresponding
]
```
Each series could have the `"value"` key, or the `"histogram"` key, but not both.
### Scalars
Scalar results are returned as result type `scalar`. The corresponding

136
tsdb/head.go
View file

@ -2076,106 +2076,90 @@ func (h *Head) updateWALReplayStatusRead(current int) {
func GenerateTestHistograms(n int) (r []*histogram.Histogram) {
for i := 0; i < n; i++ {
h := histogram.Histogram{
Count: 10 + uint64(i*8),
ZeroCount: 2 + uint64(i),
ZeroThreshold: 0.001,
Sum: 18.4 * float64(i+1),
Schema: 1,
PositiveSpans: []histogram.Span{
{Offset: 0, Length: 2},
{Offset: 1, Length: 2},
},
PositiveBuckets: []int64{int64(i + 1), 1, -1, 0},
NegativeSpans: []histogram.Span{
{Offset: 0, Length: 2},
{Offset: 1, Length: 2},
},
NegativeBuckets: []int64{int64(i + 1), 1, -1, 0},
}
h := GenerateTestHistogram(i)
if i > 0 {
h.CounterResetHint = histogram.NotCounterReset
}
r = append(r, &h)
r = append(r, h)
}
return r
}
// Generates a test histogram, it is up to the user to set any known counter reset hint.
func GenerateTestHistogram(i int) *histogram.Histogram {
return &histogram.Histogram{
Count: 10 + uint64(i*8),
ZeroCount: 2 + uint64(i),
ZeroThreshold: 0.001,
Sum: 18.4 * float64(i+1),
Schema: 1,
PositiveSpans: []histogram.Span{
{Offset: 0, Length: 2},
{Offset: 1, Length: 2},
},
PositiveBuckets: []int64{int64(i + 1), 1, -1, 0},
NegativeSpans: []histogram.Span{
{Offset: 0, Length: 2},
{Offset: 1, Length: 2},
},
NegativeBuckets: []int64{int64(i + 1), 1, -1, 0},
}
}
func GenerateTestGaugeHistograms(n int) (r []*histogram.Histogram) {
for x := 0; x < n; x++ {
i := rand.Intn(n)
r = append(r, &histogram.Histogram{
CounterResetHint: histogram.GaugeType,
Count: 10 + uint64(i*8),
ZeroCount: 2 + uint64(i),
ZeroThreshold: 0.001,
Sum: 18.4 * float64(i+1),
Schema: 1,
PositiveSpans: []histogram.Span{
{Offset: 0, Length: 2},
{Offset: 1, Length: 2},
},
PositiveBuckets: []int64{int64(i + 1), 1, -1, 0},
NegativeSpans: []histogram.Span{
{Offset: 0, Length: 2},
{Offset: 1, Length: 2},
},
NegativeBuckets: []int64{int64(i + 1), 1, -1, 0},
})
r = append(r, GenerateTestGaugeHistogram(rand.Intn(n)))
}
return r
}
func GenerateTestGaugeHistogram(i int) *histogram.Histogram {
h := GenerateTestHistogram(i)
h.CounterResetHint = histogram.GaugeType
return h
}
func GenerateTestFloatHistograms(n int) (r []*histogram.FloatHistogram) {
for i := 0; i < n; i++ {
h := histogram.FloatHistogram{
Count: 10 + float64(i*8),
ZeroCount: 2 + float64(i),
ZeroThreshold: 0.001,
Sum: 18.4 * float64(i+1),
Schema: 1,
PositiveSpans: []histogram.Span{
{Offset: 0, Length: 2},
{Offset: 1, Length: 2},
},
PositiveBuckets: []float64{float64(i + 1), float64(i + 2), float64(i + 1), float64(i + 1)},
NegativeSpans: []histogram.Span{
{Offset: 0, Length: 2},
{Offset: 1, Length: 2},
},
NegativeBuckets: []float64{float64(i + 1), float64(i + 2), float64(i + 1), float64(i + 1)},
}
h := GenerateTestFloatHistogram(i)
if i > 0 {
h.CounterResetHint = histogram.NotCounterReset
}
r = append(r, &h)
r = append(r, h)
}
return r
}
// Generates a test float histogram, it is up to the user to set any known counter reset hint.
func GenerateTestFloatHistogram(i int) *histogram.FloatHistogram {
return &histogram.FloatHistogram{
Count: 10 + float64(i*8),
ZeroCount: 2 + float64(i),
ZeroThreshold: 0.001,
Sum: 18.4 * float64(i+1),
Schema: 1,
PositiveSpans: []histogram.Span{
{Offset: 0, Length: 2},
{Offset: 1, Length: 2},
},
PositiveBuckets: []float64{float64(i + 1), float64(i + 2), float64(i + 1), float64(i + 1)},
NegativeSpans: []histogram.Span{
{Offset: 0, Length: 2},
{Offset: 1, Length: 2},
},
NegativeBuckets: []float64{float64(i + 1), float64(i + 2), float64(i + 1), float64(i + 1)},
}
}
func GenerateTestGaugeFloatHistograms(n int) (r []*histogram.FloatHistogram) {
for x := 0; x < n; x++ {
i := rand.Intn(n)
r = append(r, &histogram.FloatHistogram{
CounterResetHint: histogram.GaugeType,
Count: 10 + float64(i*8),
ZeroCount: 2 + float64(i),
ZeroThreshold: 0.001,
Sum: 18.4 * float64(i+1),
Schema: 1,
PositiveSpans: []histogram.Span{
{Offset: 0, Length: 2},
{Offset: 1, Length: 2},
},
PositiveBuckets: []float64{float64(i + 1), float64(i + 2), float64(i + 1), float64(i + 1)},
NegativeSpans: []histogram.Span{
{Offset: 0, Length: 2},
{Offset: 1, Length: 2},
},
NegativeBuckets: []float64{float64(i + 1), float64(i + 2), float64(i + 1), float64(i + 1)},
})
r = append(r, GenerateTestGaugeFloatHistogram(rand.Intn(n)))
}
return r
}
func GenerateTestGaugeFloatHistogram(i int) *histogram.FloatHistogram {
h := GenerateTestFloatHistogram(i)
h.CounterResetHint = histogram.GaugeType
return h
}

6
tsdb/head_wal.go
View file

@ -498,6 +498,12 @@ func (h *Head) resetSeriesWithMMappedChunks(mSeries *memSeries, mmc, oooMmc []*m
h.metrics.chunksCreated.Add(float64(len(mmc) + len(oooMmc)))
h.metrics.chunksRemoved.Add(float64(len(mSeries.mmappedChunks)))
h.metrics.chunks.Add(float64(len(mmc) + len(oooMmc) - len(mSeries.mmappedChunks)))
if mSeries.ooo != nil {
h.metrics.chunksRemoved.Add(float64(len(mSeries.ooo.oooMmappedChunks)))
h.metrics.chunks.Sub(float64(len(mSeries.ooo.oooMmappedChunks)))
}
mSeries.mmappedChunks = mmc
if len(oooMmc) == 0 {
mSeries.ooo = nil