mirror of
https://github.com/prometheus/prometheus.git
synced 2024-12-26 22:19:40 -08:00
4a87c002e8
This commit fixes a critique of the old storage API design, whereby the input parameters were always as raw bytes and never Protocol Buffer messages that encapsulated the data, meaning every place a read or mutation was conducted needed to manually perform said translations on its own. This is taxing. Change-Id: I4786938d0d207cefb7782bd2bd96a517eead186f
666 lines
17 KiB
Go
666 lines
17 KiB
Go
// Copyright 2013 Prometheus Team
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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 metric
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import (
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"fmt"
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"math"
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"math/rand"
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"sort"
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"testing"
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"testing/quick"
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"time"
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clientmodel "github.com/prometheus/client_golang/model"
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"github.com/prometheus/prometheus/coding/indexable"
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"github.com/prometheus/prometheus/utility/test"
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dto "github.com/prometheus/prometheus/model/generated"
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)
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const stochasticMaximumVariance = 8
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func BasicLifecycleTests(p MetricPersistence, t test.Tester) {
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if p == nil {
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t.Errorf("Received nil Metric Persistence.\n")
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return
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}
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}
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func ReadEmptyTests(p MetricPersistence, t test.Tester) {
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hasLabelPair := func(x int) (success bool) {
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name := clientmodel.LabelName(string(x))
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value := clientmodel.LabelValue(string(x))
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labelSet := clientmodel.LabelSet{
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name: value,
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}
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fingerprints, err := p.GetFingerprintsForLabelSet(labelSet)
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if err != nil {
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t.Error(err)
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return
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}
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success = len(fingerprints) == 0
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if !success {
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t.Errorf("unexpected fingerprint length %d, got %d", 0, len(fingerprints))
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}
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return
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}
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err := quick.Check(hasLabelPair, nil)
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if err != nil {
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t.Error(err)
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return
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}
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hasLabelName := func(x int) (success bool) {
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labelName := clientmodel.LabelName(string(x))
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fingerprints, err := p.GetFingerprintsForLabelName(labelName)
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if err != nil {
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t.Error(err)
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return
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}
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success = len(fingerprints) == 0
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if !success {
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t.Errorf("unexpected fingerprint length %d, got %d", 0, len(fingerprints))
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}
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return
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}
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err = quick.Check(hasLabelName, nil)
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if err != nil {
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t.Error(err)
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return
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}
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}
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func AppendSampleAsPureSparseAppendTests(p MetricPersistence, t test.Tester) {
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appendSample := func(x int) (success bool) {
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v := clientmodel.SampleValue(x)
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ts := time.Unix(int64(x), int64(x))
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labelName := clientmodel.LabelName(x)
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labelValue := clientmodel.LabelValue(x)
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l := clientmodel.Metric{labelName: labelValue}
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sample := &clientmodel.Sample{
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Value: v,
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Timestamp: ts,
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Metric: l,
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}
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err := p.AppendSamples(clientmodel.Samples{sample})
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success = err == nil
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if !success {
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t.Error(err)
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}
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return
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}
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if err := quick.Check(appendSample, nil); err != nil {
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t.Error(err)
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}
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}
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func AppendSampleAsSparseAppendWithReadsTests(p MetricPersistence, t test.Tester) {
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appendSample := func(x int) (success bool) {
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v := clientmodel.SampleValue(x)
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ts := time.Unix(int64(x), int64(x))
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labelName := clientmodel.LabelName(x)
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labelValue := clientmodel.LabelValue(x)
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l := clientmodel.Metric{labelName: labelValue}
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sample := &clientmodel.Sample{
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Value: v,
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Timestamp: ts,
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Metric: l,
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}
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err := p.AppendSamples(clientmodel.Samples{sample})
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if err != nil {
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t.Error(err)
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return
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}
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fingerprints, err := p.GetFingerprintsForLabelName(labelName)
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if err != nil {
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t.Error(err)
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return
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}
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if len(fingerprints) != 1 {
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t.Errorf("expected fingerprint count of %d, got %d", 1, len(fingerprints))
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return
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}
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fingerprints, err = p.GetFingerprintsForLabelSet(clientmodel.LabelSet{
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labelName: labelValue,
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})
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if err != nil {
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t.Error(err)
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return
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}
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if len(fingerprints) != 1 {
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t.Errorf("expected fingerprint count of %d, got %d", 1, len(fingerprints))
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return
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}
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return true
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}
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if err := quick.Check(appendSample, nil); err != nil {
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t.Error(err)
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}
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}
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func AppendSampleAsPureSingleEntityAppendTests(p MetricPersistence, t test.Tester) {
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appendSample := func(x int) bool {
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sample := &clientmodel.Sample{
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Value: clientmodel.SampleValue(x),
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Timestamp: time.Unix(int64(x), 0),
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Metric: clientmodel.Metric{clientmodel.MetricNameLabel: "my_metric"},
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}
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err := p.AppendSamples(clientmodel.Samples{sample})
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return err == nil
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}
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if err := quick.Check(appendSample, nil); err != nil {
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t.Error(err)
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}
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}
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func levelDBGetRangeValues(l *LevelDBMetricPersistence, fp *clientmodel.Fingerprint, i Interval) (samples Values, err error) {
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fpDto := &dto.Fingerprint{}
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dumpFingerprint(fpDto, fp)
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k := &dto.SampleKey{
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Fingerprint: fpDto,
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Timestamp: indexable.EncodeTime(i.OldestInclusive),
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}
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iterator, err := l.MetricSamples.NewIterator(true)
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if err != nil {
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panic(err)
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}
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defer iterator.Close()
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for valid := iterator.Seek(k); valid; valid = iterator.Next() {
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retrievedKey, err := extractSampleKey(iterator)
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if err != nil {
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return samples, err
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}
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if retrievedKey.FirstTimestamp.After(i.NewestInclusive) {
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break
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}
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if !retrievedKey.Fingerprint.Equal(fp) {
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break
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}
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retrievedValues, err := extractSampleValues(iterator)
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if err != nil {
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return nil, err
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}
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samples = append(samples, retrievedValues...)
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}
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return
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}
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type timeslice []time.Time
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func (t timeslice) Len() int {
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return len(t)
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}
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func (t timeslice) Swap(i, j int) {
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t[i], t[j] = t[j], t[i]
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}
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func (t timeslice) Less(i, j int) bool {
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return t[i].Before(t[j])
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}
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func StochasticTests(persistenceMaker func() (MetricPersistence, test.Closer), t test.Tester) {
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stochastic := func(x int) (success bool) {
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p, closer := persistenceMaker()
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defer closer.Close()
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defer p.Close()
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seed := rand.NewSource(int64(x))
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random := rand.New(seed)
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numberOfMetrics := random.Intn(stochasticMaximumVariance) + 1
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numberOfSharedLabels := random.Intn(stochasticMaximumVariance)
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numberOfUnsharedLabels := random.Intn(stochasticMaximumVariance)
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numberOfSamples := random.Intn(stochasticMaximumVariance) + 2
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numberOfRangeScans := random.Intn(stochasticMaximumVariance)
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metricTimestamps := map[int]map[int64]bool{}
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metricEarliestSample := map[int]int64{}
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metricNewestSample := map[int]int64{}
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for metricIndex := 0; metricIndex < numberOfMetrics; metricIndex++ {
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sample := &clientmodel.Sample{
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Metric: clientmodel.Metric{},
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}
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v := clientmodel.LabelValue(fmt.Sprintf("metric_index_%d", metricIndex))
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sample.Metric[clientmodel.MetricNameLabel] = v
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for sharedLabelIndex := 0; sharedLabelIndex < numberOfSharedLabels; sharedLabelIndex++ {
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l := clientmodel.LabelName(fmt.Sprintf("shared_label_%d", sharedLabelIndex))
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v := clientmodel.LabelValue(fmt.Sprintf("label_%d", sharedLabelIndex))
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sample.Metric[l] = v
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}
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for unsharedLabelIndex := 0; unsharedLabelIndex < numberOfUnsharedLabels; unsharedLabelIndex++ {
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l := clientmodel.LabelName(fmt.Sprintf("metric_index_%d_private_label_%d", metricIndex, unsharedLabelIndex))
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v := clientmodel.LabelValue(fmt.Sprintf("private_label_%d", unsharedLabelIndex))
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sample.Metric[l] = v
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}
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timestamps := map[int64]bool{}
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metricTimestamps[metricIndex] = timestamps
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var newestSample int64 = math.MinInt64
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var oldestSample int64 = math.MaxInt64
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var nextTimestamp func() int64
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nextTimestamp = func() int64 {
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var candidate int64
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candidate = random.Int63n(math.MaxInt32 - 1)
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if _, has := timestamps[candidate]; has {
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// WART
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candidate = nextTimestamp()
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}
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timestamps[candidate] = true
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if candidate < oldestSample {
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oldestSample = candidate
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}
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if candidate > newestSample {
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newestSample = candidate
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}
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return candidate
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}
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// BUG(matt): Invariant of the in-memory database assumes this.
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sortedTimestamps := timeslice{}
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for sampleIndex := 0; sampleIndex < numberOfSamples; sampleIndex++ {
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sortedTimestamps = append(sortedTimestamps, time.Unix(nextTimestamp(), 0))
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}
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sort.Sort(sortedTimestamps)
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for sampleIndex := 0; sampleIndex < numberOfSamples; sampleIndex++ {
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sample.Timestamp = sortedTimestamps[sampleIndex]
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sample.Value = clientmodel.SampleValue(sampleIndex)
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err := p.AppendSamples(clientmodel.Samples{sample})
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if err != nil {
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t.Error(err)
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return
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}
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}
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metricEarliestSample[metricIndex] = oldestSample
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metricNewestSample[metricIndex] = newestSample
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for sharedLabelIndex := 0; sharedLabelIndex < numberOfSharedLabels; sharedLabelIndex++ {
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labelPair := clientmodel.LabelSet{
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clientmodel.LabelName(fmt.Sprintf("shared_label_%d", sharedLabelIndex)): clientmodel.LabelValue(fmt.Sprintf("label_%d", sharedLabelIndex)),
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}
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fingerprints, err := p.GetFingerprintsForLabelSet(labelPair)
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if err != nil {
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t.Error(err)
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return
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}
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if len(fingerprints) == 0 {
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t.Errorf("expected fingerprint count of %d, got %d", 0, len(fingerprints))
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return
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}
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labelName := clientmodel.LabelName(fmt.Sprintf("shared_label_%d", sharedLabelIndex))
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fingerprints, err = p.GetFingerprintsForLabelName(labelName)
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if err != nil {
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t.Error(err)
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return
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}
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if len(fingerprints) == 0 {
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t.Errorf("expected fingerprint count of %d, got %d", 0, len(fingerprints))
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return
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}
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}
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}
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for sharedIndex := 0; sharedIndex < numberOfSharedLabels; sharedIndex++ {
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labelName := clientmodel.LabelName(fmt.Sprintf("shared_label_%d", sharedIndex))
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fingerprints, err := p.GetFingerprintsForLabelName(labelName)
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if err != nil {
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t.Error(err)
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return
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}
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if len(fingerprints) != numberOfMetrics {
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t.Errorf("expected fingerprint count of %d, got %d", numberOfMetrics, len(fingerprints))
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return
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}
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}
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for metricIndex := 0; metricIndex < numberOfMetrics; metricIndex++ {
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for unsharedLabelIndex := 0; unsharedLabelIndex < numberOfUnsharedLabels; unsharedLabelIndex++ {
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labelName := clientmodel.LabelName(fmt.Sprintf("metric_index_%d_private_label_%d", metricIndex, unsharedLabelIndex))
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labelValue := clientmodel.LabelValue(fmt.Sprintf("private_label_%d", unsharedLabelIndex))
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labelSet := clientmodel.LabelSet{
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labelName: labelValue,
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}
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fingerprints, err := p.GetFingerprintsForLabelSet(labelSet)
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if err != nil {
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t.Error(err)
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return
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}
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if len(fingerprints) != 1 {
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t.Errorf("expected fingerprint count of %d, got %d", 1, len(fingerprints))
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return
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}
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fingerprints, err = p.GetFingerprintsForLabelName(labelName)
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if err != nil {
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t.Error(err)
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return
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}
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if len(fingerprints) != 1 {
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t.Errorf("expected fingerprint count of %d, got %d", 1, len(fingerprints))
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return
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}
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}
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metric := clientmodel.Metric{}
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metric[clientmodel.MetricNameLabel] = clientmodel.LabelValue(fmt.Sprintf("metric_index_%d", metricIndex))
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for i := 0; i < numberOfSharedLabels; i++ {
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l := clientmodel.LabelName(fmt.Sprintf("shared_label_%d", i))
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v := clientmodel.LabelValue(fmt.Sprintf("label_%d", i))
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metric[l] = v
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}
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for i := 0; i < numberOfUnsharedLabels; i++ {
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l := clientmodel.LabelName(fmt.Sprintf("metric_index_%d_private_label_%d", metricIndex, i))
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v := clientmodel.LabelValue(fmt.Sprintf("private_label_%d", i))
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metric[l] = v
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}
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for i := 0; i < numberOfRangeScans; i++ {
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timestamps := metricTimestamps[metricIndex]
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var first int64 = 0
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var second int64 = 0
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for {
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firstCandidate := random.Int63n(int64(len(timestamps)))
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secondCandidate := random.Int63n(int64(len(timestamps)))
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smallest := int64(-1)
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largest := int64(-1)
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if firstCandidate == secondCandidate {
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continue
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} else if firstCandidate > secondCandidate {
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largest = firstCandidate
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smallest = secondCandidate
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} else {
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largest = secondCandidate
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smallest = firstCandidate
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}
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j := int64(0)
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for i := range timestamps {
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if j == smallest {
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first = i
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} else if j == largest {
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second = i
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break
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}
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j++
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}
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break
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}
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begin := first
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end := second
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if second < first {
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begin, end = second, first
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}
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interval := Interval{
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OldestInclusive: time.Unix(begin, 0),
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NewestInclusive: time.Unix(end, 0),
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}
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samples := Values{}
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fp := &clientmodel.Fingerprint{}
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fp.LoadFromMetric(metric)
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switch persistence := p.(type) {
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case *LevelDBMetricPersistence:
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var err error
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samples, err = levelDBGetRangeValues(persistence, fp, interval)
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if err != nil {
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t.Fatal(err)
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}
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if len(samples) < 2 {
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t.Fatalf("expected sample count greater than %d, got %d", 2, len(samples))
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}
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default:
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samples = p.GetRangeValues(fp, interval)
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if len(samples) < 2 {
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t.Fatalf("expected sample count greater than %d, got %d", 2, len(samples))
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}
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}
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}
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}
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return true
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}
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if err := quick.Check(stochastic, nil); err != nil {
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t.Error(err)
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}
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}
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// Test Definitions Follow
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var testLevelDBBasicLifecycle = buildLevelDBTestPersistence("basic_lifecycle", BasicLifecycleTests)
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func TestLevelDBBasicLifecycle(t *testing.T) {
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testLevelDBBasicLifecycle(t)
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}
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|
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func BenchmarkLevelDBBasicLifecycle(b *testing.B) {
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for i := 0; i < b.N; i++ {
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testLevelDBBasicLifecycle(b)
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}
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}
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var testLevelDBReadEmpty = buildLevelDBTestPersistence("read_empty", ReadEmptyTests)
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func TestLevelDBReadEmpty(t *testing.T) {
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testLevelDBReadEmpty(t)
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}
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func BenchmarkLevelDBReadEmpty(b *testing.B) {
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for i := 0; i < b.N; i++ {
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testLevelDBReadEmpty(b)
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}
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}
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var testLevelDBAppendSampleAsPureSparseAppend = buildLevelDBTestPersistence("append_sample_as_pure_sparse_append", AppendSampleAsPureSparseAppendTests)
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func TestLevelDBAppendSampleAsPureSparseAppend(t *testing.T) {
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testLevelDBAppendSampleAsPureSparseAppend(t)
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}
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func BenchmarkLevelDBAppendSampleAsPureSparseAppend(b *testing.B) {
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for i := 0; i < b.N; i++ {
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testLevelDBAppendSampleAsPureSparseAppend(b)
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}
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}
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var testLevelDBAppendSampleAsSparseAppendWithReads = buildLevelDBTestPersistence("append_sample_as_sparse_append_with_reads", AppendSampleAsSparseAppendWithReadsTests)
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func TestLevelDBAppendSampleAsSparseAppendWithReads(t *testing.T) {
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testLevelDBAppendSampleAsSparseAppendWithReads(t)
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}
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func BenchmarkLevelDBAppendSampleAsSparseAppendWithReads(b *testing.B) {
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for i := 0; i < b.N; i++ {
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testLevelDBAppendSampleAsSparseAppendWithReads(b)
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}
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|
}
|
|
|
|
var testLevelDBAppendSampleAsPureSingleEntityAppend = buildLevelDBTestPersistence("append_sample_as_pure_single_entity_append", AppendSampleAsPureSingleEntityAppendTests)
|
|
|
|
func TestLevelDBAppendSampleAsPureSingleEntityAppend(t *testing.T) {
|
|
testLevelDBAppendSampleAsPureSingleEntityAppend(t)
|
|
}
|
|
|
|
func BenchmarkLevelDBAppendSampleAsPureSingleEntityAppend(b *testing.B) {
|
|
for i := 0; i < b.N; i++ {
|
|
testLevelDBAppendSampleAsPureSingleEntityAppend(b)
|
|
}
|
|
}
|
|
|
|
func testLevelDBStochastic(t test.Tester) {
|
|
persistenceMaker := func() (MetricPersistence, test.Closer) {
|
|
temporaryDirectory := test.NewTemporaryDirectory("test_leveldb_stochastic", t)
|
|
|
|
p, err := NewLevelDBMetricPersistence(temporaryDirectory.Path())
|
|
if err != nil {
|
|
t.Errorf("Could not start up LevelDB: %q\n", err)
|
|
}
|
|
|
|
return p, temporaryDirectory
|
|
}
|
|
|
|
StochasticTests(persistenceMaker, t)
|
|
}
|
|
|
|
func TestLevelDBStochastic(t *testing.T) {
|
|
testLevelDBStochastic(t)
|
|
}
|
|
|
|
func BenchmarkLevelDBStochastic(b *testing.B) {
|
|
for i := 0; i < b.N; i++ {
|
|
testLevelDBStochastic(b)
|
|
}
|
|
}
|
|
|
|
var testMemoryBasicLifecycle = buildMemoryTestPersistence(BasicLifecycleTests)
|
|
|
|
func TestMemoryBasicLifecycle(t *testing.T) {
|
|
testMemoryBasicLifecycle(t)
|
|
}
|
|
|
|
func BenchmarkMemoryBasicLifecycle(b *testing.B) {
|
|
for i := 0; i < b.N; i++ {
|
|
testMemoryBasicLifecycle(b)
|
|
}
|
|
}
|
|
|
|
var testMemoryReadEmpty = buildMemoryTestPersistence(ReadEmptyTests)
|
|
|
|
func TestMemoryReadEmpty(t *testing.T) {
|
|
testMemoryReadEmpty(t)
|
|
}
|
|
|
|
func BenchmarkMemoryReadEmpty(b *testing.B) {
|
|
for i := 0; i < b.N; i++ {
|
|
testMemoryReadEmpty(b)
|
|
}
|
|
}
|
|
|
|
var testMemoryAppendSampleAsPureSparseAppend = buildMemoryTestPersistence(AppendSampleAsPureSparseAppendTests)
|
|
|
|
func TestMemoryAppendSampleAsPureSparseAppend(t *testing.T) {
|
|
testMemoryAppendSampleAsPureSparseAppend(t)
|
|
}
|
|
|
|
func BenchmarkMemoryAppendSampleAsPureSparseAppend(b *testing.B) {
|
|
for i := 0; i < b.N; i++ {
|
|
testMemoryAppendSampleAsPureSparseAppend(b)
|
|
}
|
|
}
|
|
|
|
var testMemoryAppendSampleAsSparseAppendWithReads = buildMemoryTestPersistence(AppendSampleAsSparseAppendWithReadsTests)
|
|
|
|
func TestMemoryAppendSampleAsSparseAppendWithReads(t *testing.T) {
|
|
testMemoryAppendSampleAsSparseAppendWithReads(t)
|
|
}
|
|
|
|
func BenchmarkMemoryAppendSampleAsSparseAppendWithReads(b *testing.B) {
|
|
for i := 0; i < b.N; i++ {
|
|
testMemoryAppendSampleAsSparseAppendWithReads(b)
|
|
}
|
|
}
|
|
|
|
var testMemoryAppendSampleAsPureSingleEntityAppend = buildMemoryTestPersistence(AppendSampleAsPureSingleEntityAppendTests)
|
|
|
|
func TestMemoryAppendSampleAsPureSingleEntityAppend(t *testing.T) {
|
|
testMemoryAppendSampleAsPureSingleEntityAppend(t)
|
|
}
|
|
|
|
func BenchmarkMemoryAppendSampleAsPureSingleEntityAppend(b *testing.B) {
|
|
for i := 0; i < b.N; i++ {
|
|
testMemoryAppendSampleAsPureSingleEntityAppend(b)
|
|
}
|
|
}
|
|
|
|
func testMemoryStochastic(t test.Tester) {
|
|
persistenceMaker := func() (MetricPersistence, test.Closer) {
|
|
return NewMemorySeriesStorage(MemorySeriesOptions{}), test.NilCloser
|
|
}
|
|
|
|
StochasticTests(persistenceMaker, t)
|
|
}
|
|
|
|
func TestMemoryStochastic(t *testing.T) {
|
|
testMemoryStochastic(t)
|
|
}
|
|
|
|
func BenchmarkMemoryStochastic(b *testing.B) {
|
|
for i := 0; i < b.N; i++ {
|
|
testMemoryStochastic(b)
|
|
}
|
|
}
|