mirror of
https://github.com/prometheus/prometheus.git
synced 2024-12-30 07:59:40 -08:00
591 lines
13 KiB
Go
591 lines
13 KiB
Go
// Copyright 2013 Prometheus Team
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
package metric
|
|
|
|
import (
|
|
"github.com/prometheus/prometheus/model"
|
|
"github.com/prometheus/prometheus/utility/test"
|
|
"sort"
|
|
"testing"
|
|
"time"
|
|
)
|
|
|
|
type testTieredStorageCloser struct {
|
|
storage Storage
|
|
directory test.Closer
|
|
}
|
|
|
|
func (t testTieredStorageCloser) Close() {
|
|
t.storage.Close()
|
|
t.directory.Close()
|
|
}
|
|
|
|
func newTestTieredStorage(t test.Tester) (storage Storage, closer test.Closer) {
|
|
var directory test.TemporaryDirectory
|
|
directory = test.NewTemporaryDirectory("test_tiered_storage", t)
|
|
storage, err := NewTieredStorage(5000000, 2500, 1000, 5*time.Second, 15*time.Second, 0*time.Second, directory.Path())
|
|
|
|
if err != nil {
|
|
t.Fatalf("Error creating storage: %s", err)
|
|
}
|
|
|
|
if storage == nil {
|
|
t.Fatalf("storage == nil")
|
|
}
|
|
|
|
go storage.Serve()
|
|
closer = &testTieredStorageCloser{
|
|
storage: storage,
|
|
directory: directory,
|
|
}
|
|
return
|
|
}
|
|
|
|
func buildSamples(from, to time.Time, interval time.Duration, m model.Metric) (v []model.Sample) {
|
|
i := model.SampleValue(0)
|
|
|
|
for from.Before(to) {
|
|
v = append(v, model.Sample{
|
|
Metric: m,
|
|
Value: i,
|
|
Timestamp: from,
|
|
})
|
|
|
|
from = from.Add(interval)
|
|
i++
|
|
}
|
|
|
|
return
|
|
}
|
|
|
|
func testMakeView(t test.Tester) {
|
|
type in struct {
|
|
atTime []getValuesAtTimeOp
|
|
atInterval []getValuesAtIntervalOp
|
|
alongRange []getValuesAlongRangeOp
|
|
}
|
|
|
|
type out struct {
|
|
atTime [][]model.SamplePair
|
|
atInterval [][]model.SamplePair
|
|
alongRange [][]model.SamplePair
|
|
}
|
|
var (
|
|
instant = time.Date(1984, 3, 30, 0, 0, 0, 0, time.Local)
|
|
metric = model.Metric{model.MetricNameLabel: "request_count"}
|
|
fingerprint = model.NewFingerprintFromMetric(metric)
|
|
scenarios = []struct {
|
|
data []model.Sample
|
|
in in
|
|
out out
|
|
}{
|
|
// No sample, but query asks for one.
|
|
{
|
|
in: in{
|
|
atTime: []getValuesAtTimeOp{
|
|
{
|
|
time: instant,
|
|
},
|
|
},
|
|
},
|
|
out: out{
|
|
atTime: [][]model.SamplePair{{}},
|
|
},
|
|
},
|
|
// Single sample, query asks for exact sample time.
|
|
{
|
|
data: []model.Sample{
|
|
{
|
|
Metric: metric,
|
|
Value: 0,
|
|
Timestamp: instant,
|
|
},
|
|
},
|
|
in: in{
|
|
atTime: []getValuesAtTimeOp{
|
|
{
|
|
time: instant,
|
|
},
|
|
},
|
|
},
|
|
out: out{
|
|
atTime: [][]model.SamplePair{
|
|
{
|
|
{
|
|
Timestamp: instant,
|
|
Value: 0,
|
|
},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
// Single sample, query time before the sample.
|
|
{
|
|
data: []model.Sample{
|
|
{
|
|
Metric: metric,
|
|
Value: 0,
|
|
Timestamp: instant.Add(time.Second),
|
|
},
|
|
{
|
|
Metric: metric,
|
|
Value: 1,
|
|
Timestamp: instant.Add(time.Second * 2),
|
|
},
|
|
},
|
|
in: in{
|
|
atTime: []getValuesAtTimeOp{
|
|
{
|
|
time: instant,
|
|
},
|
|
},
|
|
},
|
|
out: out{
|
|
atTime: [][]model.SamplePair{
|
|
{
|
|
{
|
|
Timestamp: instant.Add(time.Second),
|
|
Value: 0,
|
|
},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
// Single sample, query time after the sample.
|
|
{
|
|
data: []model.Sample{
|
|
{
|
|
Metric: metric,
|
|
Value: 0,
|
|
Timestamp: instant,
|
|
},
|
|
},
|
|
in: in{
|
|
atTime: []getValuesAtTimeOp{
|
|
{
|
|
time: instant.Add(time.Second),
|
|
},
|
|
},
|
|
},
|
|
out: out{
|
|
atTime: [][]model.SamplePair{
|
|
{
|
|
{
|
|
Timestamp: instant,
|
|
Value: 0,
|
|
},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
// Two samples, query asks for first sample time.
|
|
{
|
|
data: []model.Sample{
|
|
{
|
|
Metric: metric,
|
|
Value: 0,
|
|
Timestamp: instant,
|
|
},
|
|
{
|
|
Metric: metric,
|
|
Value: 1,
|
|
Timestamp: instant.Add(time.Second),
|
|
},
|
|
},
|
|
in: in{
|
|
atTime: []getValuesAtTimeOp{
|
|
{
|
|
time: instant,
|
|
},
|
|
},
|
|
},
|
|
out: out{
|
|
atTime: [][]model.SamplePair{
|
|
{
|
|
{
|
|
Timestamp: instant,
|
|
Value: 0,
|
|
},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
// Three samples, query asks for second sample time.
|
|
{
|
|
data: []model.Sample{
|
|
{
|
|
Metric: metric,
|
|
Value: 0,
|
|
Timestamp: instant,
|
|
},
|
|
{
|
|
Metric: metric,
|
|
Value: 1,
|
|
Timestamp: instant.Add(time.Second),
|
|
},
|
|
{
|
|
Metric: metric,
|
|
Value: 2,
|
|
Timestamp: instant.Add(time.Second * 2),
|
|
},
|
|
},
|
|
in: in{
|
|
atTime: []getValuesAtTimeOp{
|
|
{
|
|
time: instant.Add(time.Second),
|
|
},
|
|
},
|
|
},
|
|
out: out{
|
|
atTime: [][]model.SamplePair{
|
|
{
|
|
{
|
|
Timestamp: instant.Add(time.Second),
|
|
Value: 1,
|
|
},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
// Three samples, query asks for time between first and second samples.
|
|
{
|
|
data: []model.Sample{
|
|
{
|
|
Metric: metric,
|
|
Value: 0,
|
|
Timestamp: instant,
|
|
},
|
|
{
|
|
Metric: metric,
|
|
Value: 1,
|
|
Timestamp: instant.Add(time.Second * 2),
|
|
},
|
|
{
|
|
Metric: metric,
|
|
Value: 2,
|
|
Timestamp: instant.Add(time.Second * 4),
|
|
},
|
|
},
|
|
in: in{
|
|
atTime: []getValuesAtTimeOp{
|
|
{
|
|
time: instant.Add(time.Second),
|
|
},
|
|
},
|
|
},
|
|
out: out{
|
|
atTime: [][]model.SamplePair{
|
|
{
|
|
{
|
|
Timestamp: instant,
|
|
Value: 0,
|
|
},
|
|
{
|
|
Timestamp: instant.Add(time.Second * 2),
|
|
Value: 1,
|
|
},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
// Three samples, query asks for time between second and third samples.
|
|
{
|
|
data: []model.Sample{
|
|
{
|
|
Metric: metric,
|
|
Value: 0,
|
|
Timestamp: instant,
|
|
},
|
|
{
|
|
Metric: metric,
|
|
Value: 1,
|
|
Timestamp: instant.Add(time.Second * 2),
|
|
},
|
|
{
|
|
Metric: metric,
|
|
Value: 2,
|
|
Timestamp: instant.Add(time.Second * 4),
|
|
},
|
|
},
|
|
in: in{
|
|
atTime: []getValuesAtTimeOp{
|
|
{
|
|
time: instant.Add(time.Second * 3),
|
|
},
|
|
},
|
|
},
|
|
out: out{
|
|
atTime: [][]model.SamplePair{
|
|
{
|
|
{
|
|
Timestamp: instant.Add(time.Second * 2),
|
|
Value: 1,
|
|
},
|
|
{
|
|
Timestamp: instant.Add(time.Second * 4),
|
|
Value: 2,
|
|
},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
// Two chunks of samples, query asks for values from first chunk.
|
|
{
|
|
data: buildSamples(instant, instant.Add(time.Duration(*leveldbChunkSize*2)*time.Second), time.Second, metric),
|
|
in: in{
|
|
atTime: []getValuesAtTimeOp{
|
|
{
|
|
time: instant.Add(time.Second*time.Duration(*leveldbChunkSize/2) + 1),
|
|
},
|
|
},
|
|
},
|
|
out: out{
|
|
atTime: [][]model.SamplePair{
|
|
{
|
|
{
|
|
Timestamp: instant.Add(time.Second * time.Duration(*leveldbChunkSize/2)),
|
|
Value: 100,
|
|
},
|
|
{
|
|
Timestamp: instant.Add(time.Second * (time.Duration(*leveldbChunkSize/2) + 1)),
|
|
Value: 101,
|
|
},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
}
|
|
)
|
|
|
|
for i, scenario := range scenarios {
|
|
tiered, closer := newTestTieredStorage(t)
|
|
defer closer.Close()
|
|
|
|
for j, datum := range scenario.data {
|
|
err := tiered.AppendSample(datum)
|
|
if err != nil {
|
|
t.Fatalf("%d.%d. failed to add fixture data: %s", i, j, err)
|
|
}
|
|
}
|
|
|
|
tiered.Flush()
|
|
|
|
requestBuilder := NewViewRequestBuilder()
|
|
|
|
for _, atTime := range scenario.in.atTime {
|
|
requestBuilder.GetMetricAtTime(fingerprint, atTime.time)
|
|
}
|
|
|
|
for _, atInterval := range scenario.in.atInterval {
|
|
requestBuilder.GetMetricAtInterval(fingerprint, atInterval.from, atInterval.through, atInterval.interval)
|
|
}
|
|
|
|
for _, alongRange := range scenario.in.alongRange {
|
|
requestBuilder.GetMetricRange(fingerprint, alongRange.from, alongRange.through)
|
|
}
|
|
|
|
v, err := tiered.MakeView(requestBuilder, time.Second*5)
|
|
|
|
if err != nil {
|
|
t.Fatalf("%d. failed due to %s", i, err)
|
|
}
|
|
|
|
for j, atTime := range scenario.in.atTime {
|
|
actual := v.GetValueAtTime(fingerprint, atTime.time)
|
|
|
|
if len(actual) != len(scenario.out.atTime[j]) {
|
|
t.Fatalf("%d.%d. expected %d output, got %d", i, j, len(scenario.out.atTime[j]), len(actual))
|
|
}
|
|
|
|
for k, value := range scenario.out.atTime[j] {
|
|
if value.Value != actual[k].Value {
|
|
t.Fatalf("%d.%d.%d expected %v value, got %v", i, j, k, value.Value, actual[k].Value)
|
|
}
|
|
if !value.Timestamp.Equal(actual[k].Timestamp) {
|
|
t.Fatalf("%d.%d.%d expected %s timestamp, got %s", i, j, k, value.Timestamp, actual[k].Timestamp)
|
|
}
|
|
}
|
|
}
|
|
|
|
tiered.Drain()
|
|
}
|
|
}
|
|
|
|
func TestMakeView(t *testing.T) {
|
|
testMakeView(t)
|
|
}
|
|
|
|
func BenchmarkMakeView(b *testing.B) {
|
|
for i := 0; i < b.N; i++ {
|
|
testMakeView(b)
|
|
}
|
|
}
|
|
|
|
func TestGetAllValuesForLabel(t *testing.T) {
|
|
type in struct {
|
|
metricName string
|
|
appendToMemory bool
|
|
appendToDisk bool
|
|
}
|
|
|
|
scenarios := []struct {
|
|
in []in
|
|
out []string
|
|
}{
|
|
{
|
|
// Empty case.
|
|
}, {
|
|
in: []in{
|
|
{
|
|
metricName: "request_count",
|
|
appendToMemory: false,
|
|
appendToDisk: true,
|
|
},
|
|
},
|
|
out: []string{
|
|
"request_count",
|
|
},
|
|
}, {
|
|
in: []in{
|
|
{
|
|
metricName: "request_count",
|
|
appendToMemory: true,
|
|
appendToDisk: false,
|
|
},
|
|
{
|
|
metricName: "start_time",
|
|
appendToMemory: false,
|
|
appendToDisk: true,
|
|
},
|
|
},
|
|
out: []string{
|
|
"request_count",
|
|
"start_time",
|
|
},
|
|
}, {
|
|
in: []in{
|
|
{
|
|
metricName: "request_count",
|
|
appendToMemory: true,
|
|
appendToDisk: true,
|
|
},
|
|
{
|
|
metricName: "start_time",
|
|
appendToMemory: true,
|
|
appendToDisk: true,
|
|
},
|
|
},
|
|
out: []string{
|
|
"request_count",
|
|
"start_time",
|
|
},
|
|
},
|
|
}
|
|
|
|
for i, scenario := range scenarios {
|
|
tiered, closer := newTestTieredStorage(t)
|
|
defer closer.Close()
|
|
for j, metric := range scenario.in {
|
|
sample := model.Sample{
|
|
Metric: model.Metric{model.MetricNameLabel: model.LabelValue(metric.metricName)},
|
|
}
|
|
if metric.appendToMemory {
|
|
if err := tiered.(*tieredStorage).memoryArena.AppendSample(sample); err != nil {
|
|
t.Fatalf("%d.%d. failed to add fixture data: %s", i, j, err)
|
|
}
|
|
}
|
|
if metric.appendToDisk {
|
|
if err := tiered.(*tieredStorage).diskStorage.AppendSample(sample); err != nil {
|
|
t.Fatalf("%d.%d. failed to add fixture data: %s", i, j, err)
|
|
}
|
|
}
|
|
}
|
|
metricNames, err := tiered.GetAllValuesForLabel(model.MetricNameLabel)
|
|
if err != nil {
|
|
t.Fatalf("%d. Error getting metric names: %s", i, err)
|
|
}
|
|
if len(metricNames) != len(scenario.out) {
|
|
t.Fatalf("%d. Expected metric count %d, got %d", i, len(scenario.out), len(metricNames))
|
|
}
|
|
|
|
sort.Sort(metricNames)
|
|
for j, expected := range scenario.out {
|
|
if expected != string(metricNames[j]) {
|
|
t.Fatalf("%d.%d. Expected metric %s, got %s", i, j, expected, metricNames[j])
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestGetFingerprintsForLabelSet(t *testing.T) {
|
|
tiered, closer := newTestTieredStorage(t)
|
|
defer closer.Close()
|
|
memorySample := model.Sample{
|
|
Metric: model.Metric{model.MetricNameLabel: "http_requests", "method": "/foo"},
|
|
}
|
|
diskSample := model.Sample{
|
|
Metric: model.Metric{model.MetricNameLabel: "http_requests", "method": "/bar"},
|
|
}
|
|
if err := tiered.(*tieredStorage).memoryArena.AppendSample(memorySample); err != nil {
|
|
t.Fatalf("Failed to add fixture data: %s", err)
|
|
}
|
|
if err := tiered.(*tieredStorage).diskStorage.AppendSample(diskSample); err != nil {
|
|
t.Fatalf("Failed to add fixture data: %s", err)
|
|
}
|
|
tiered.Flush()
|
|
|
|
scenarios := []struct {
|
|
labels model.LabelSet
|
|
fpCount int
|
|
}{
|
|
{
|
|
labels: model.LabelSet{},
|
|
fpCount: 0,
|
|
}, {
|
|
labels: model.LabelSet{
|
|
model.MetricNameLabel: "http_requests",
|
|
},
|
|
fpCount: 2,
|
|
}, {
|
|
labels: model.LabelSet{
|
|
model.MetricNameLabel: "http_requests",
|
|
"method": "/foo",
|
|
},
|
|
fpCount: 1,
|
|
}, {
|
|
labels: model.LabelSet{
|
|
model.MetricNameLabel: "http_requests",
|
|
"method": "/bar",
|
|
},
|
|
fpCount: 1,
|
|
}, {
|
|
labels: model.LabelSet{
|
|
model.MetricNameLabel: "http_requests",
|
|
"method": "/baz",
|
|
},
|
|
fpCount: 0,
|
|
},
|
|
}
|
|
|
|
for i, scenario := range scenarios {
|
|
fingerprints, err := tiered.GetFingerprintsForLabelSet(scenario.labels)
|
|
if err != nil {
|
|
t.Fatalf("%d. Error getting metric names: %s", i, err)
|
|
}
|
|
if len(fingerprints) != scenario.fpCount {
|
|
t.Fatalf("%d. Expected metric count %d, got %d", i, scenario.fpCount, len(fingerprints))
|
|
}
|
|
}
|
|
}
|