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92d6980360
Use AppendableGauge to detect corrupt chunk with gauge histograms. Detect if first sample is a gauge but the chunk is not set up to contain gauge histograms. Signed-off-by: György Krajcsovits <gyorgy.krajcsovits@grafana.com> Signed-off-by: George Krajcsovits <krajorama@users.noreply.github.com>
121 lines
3.4 KiB
Go
121 lines
3.4 KiB
Go
// Copyright 2023 The Prometheus Authors
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package tsdbutil
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import (
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"math/rand"
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"github.com/prometheus/prometheus/model/histogram"
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)
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func GenerateTestHistograms(n int) (r []*histogram.Histogram) {
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for i := 0; i < n; i++ {
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h := GenerateTestHistogram(i)
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if i > 0 {
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h.CounterResetHint = histogram.NotCounterReset
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}
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r = append(r, h)
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}
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return r
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}
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// GenerateTestHistogram but it is up to the user to set any known counter reset hint.
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func GenerateTestHistogram(i int) *histogram.Histogram {
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return &histogram.Histogram{
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Count: 10 + uint64(i*8),
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ZeroCount: 2 + uint64(i),
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ZeroThreshold: 0.001,
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Sum: 18.4 * float64(i+1),
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Schema: 1,
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PositiveSpans: []histogram.Span{
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{Offset: 0, Length: 2},
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{Offset: 1, Length: 2},
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},
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PositiveBuckets: []int64{int64(i + 1), 1, -1, 0},
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NegativeSpans: []histogram.Span{
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{Offset: 0, Length: 2},
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{Offset: 1, Length: 2},
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},
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NegativeBuckets: []int64{int64(i + 1), 1, -1, 0},
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}
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}
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func GenerateTestGaugeHistograms(n int) (r []*histogram.Histogram) {
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for x := 0; x < n; x++ {
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r = append(r, GenerateTestGaugeHistogram(rand.Intn(n)))
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}
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return r
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}
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func GenerateTestGaugeHistogram(i int) *histogram.Histogram {
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h := GenerateTestHistogram(i)
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h.CounterResetHint = histogram.GaugeType
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return h
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}
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func GenerateTestFloatHistograms(n int) (r []*histogram.FloatHistogram) {
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for i := 0; i < n; i++ {
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h := GenerateTestFloatHistogram(i)
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if i > 0 {
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h.CounterResetHint = histogram.NotCounterReset
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}
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r = append(r, h)
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}
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return r
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}
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// GenerateTestFloatHistogram but it is up to the user to set any known counter reset hint.
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func GenerateTestFloatHistogram(i int) *histogram.FloatHistogram {
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return &histogram.FloatHistogram{
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Count: 10 + float64(i*8),
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ZeroCount: 2 + float64(i),
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ZeroThreshold: 0.001,
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Sum: 18.4 * float64(i+1),
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Schema: 1,
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PositiveSpans: []histogram.Span{
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{Offset: 0, Length: 2},
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{Offset: 1, Length: 2},
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},
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PositiveBuckets: []float64{float64(i + 1), float64(i + 2), float64(i + 1), float64(i + 1)},
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NegativeSpans: []histogram.Span{
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{Offset: 0, Length: 2},
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{Offset: 1, Length: 2},
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},
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NegativeBuckets: []float64{float64(i + 1), float64(i + 2), float64(i + 1), float64(i + 1)},
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}
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}
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func GenerateTestGaugeFloatHistograms(n int) (r []*histogram.FloatHistogram) {
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for x := 0; x < n; x++ {
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r = append(r, GenerateTestGaugeFloatHistogram(rand.Intn(n)))
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}
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return r
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}
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func GenerateTestGaugeFloatHistogram(i int) *histogram.FloatHistogram {
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h := GenerateTestFloatHistogram(i)
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h.CounterResetHint = histogram.GaugeType
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return h
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}
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func SetHistogramNotCounterReset(h *histogram.Histogram) *histogram.Histogram {
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h.CounterResetHint = histogram.NotCounterReset
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return h
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}
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func SetFloatHistogramNotCounterReset(h *histogram.FloatHistogram) *histogram.FloatHistogram {
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h.CounterResetHint = histogram.NotCounterReset
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return h
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}
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