mirror of
https://github.com/prometheus/prometheus.git
synced 2025-11-04 10:21:02 +01:00
266 lines
9.2 KiB
Go
266 lines
9.2 KiB
Go
// Copyright 2020 The Prometheus Authors
|
|
// 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 main
|
|
|
|
import (
|
|
"context"
|
|
"math"
|
|
"os"
|
|
"path/filepath"
|
|
"testing"
|
|
"time"
|
|
|
|
"github.com/go-kit/log"
|
|
v1 "github.com/prometheus/client_golang/api/prometheus/v1"
|
|
"github.com/prometheus/common/model"
|
|
"github.com/stretchr/testify/require"
|
|
|
|
"github.com/prometheus/prometheus/model/labels"
|
|
"github.com/prometheus/prometheus/tsdb"
|
|
"github.com/prometheus/prometheus/tsdb/chunkenc"
|
|
)
|
|
|
|
type mockQueryRangeAPI struct {
|
|
samples model.Matrix
|
|
}
|
|
|
|
func (mockAPI mockQueryRangeAPI) QueryRange(ctx context.Context, query string, r v1.Range, opts ...v1.Option) (model.Value, v1.Warnings, error) {
|
|
return mockAPI.samples, v1.Warnings{}, nil
|
|
}
|
|
|
|
const defaultBlockDuration = time.Duration(tsdb.DefaultBlockDuration) * time.Millisecond
|
|
|
|
// TestBackfillRuleIntegration is an integration test that runs all the rule importer code to confirm the parts work together.
|
|
func TestBackfillRuleIntegration(t *testing.T) {
|
|
const (
|
|
testMaxSampleCount = 50
|
|
testValue = 123
|
|
testValue2 = 98
|
|
)
|
|
var (
|
|
start = time.Date(2009, time.November, 10, 6, 34, 0, 0, time.UTC)
|
|
testTime = model.Time(start.Add(-9 * time.Hour).Unix())
|
|
testTime2 = model.Time(start.Add(-8 * time.Hour).Unix())
|
|
twentyFourHourDuration, _ = time.ParseDuration("24h")
|
|
)
|
|
|
|
testCases := []struct {
|
|
name string
|
|
runcount int
|
|
maxBlockDuration time.Duration
|
|
expectedBlockCount int
|
|
expectedSeriesCount int
|
|
expectedSampleCount int
|
|
samples []*model.SampleStream
|
|
}{
|
|
{"no samples", 1, defaultBlockDuration, 0, 0, 0, []*model.SampleStream{}},
|
|
{"run importer once", 1, defaultBlockDuration, 8, 4, 4, []*model.SampleStream{{Metric: model.Metric{"name1": "val1"}, Values: []model.SamplePair{{Timestamp: testTime, Value: testValue}}}}},
|
|
{"run importer with dup name label", 1, defaultBlockDuration, 8, 4, 4, []*model.SampleStream{{Metric: model.Metric{"__name__": "val1", "name1": "val1"}, Values: []model.SamplePair{{Timestamp: testTime, Value: testValue}}}}},
|
|
{"one importer twice", 2, defaultBlockDuration, 8, 4, 8, []*model.SampleStream{{Metric: model.Metric{"name1": "val1"}, Values: []model.SamplePair{{Timestamp: testTime, Value: testValue}, {Timestamp: testTime2, Value: testValue2}}}}},
|
|
{"run importer once with larger blocks", 1, twentyFourHourDuration, 4, 4, 4, []*model.SampleStream{{Metric: model.Metric{"name1": "val1"}, Values: []model.SamplePair{{Timestamp: testTime, Value: testValue}}}}},
|
|
}
|
|
for _, tt := range testCases {
|
|
t.Run(tt.name, func(t *testing.T) {
|
|
tmpDir := t.TempDir()
|
|
ctx := context.Background()
|
|
|
|
// Execute the test more than once to simulate running the rule importer twice with the same data.
|
|
// We expect duplicate blocks with the same series are created when run more than once.
|
|
for i := 0; i < tt.runcount; i++ {
|
|
|
|
ruleImporter, err := newTestRuleImporter(ctx, start, tmpDir, tt.samples, tt.maxBlockDuration)
|
|
require.NoError(t, err)
|
|
path1 := filepath.Join(tmpDir, "test.file")
|
|
require.NoError(t, createSingleRuleTestFiles(path1))
|
|
path2 := filepath.Join(tmpDir, "test2.file")
|
|
require.NoError(t, createMultiRuleTestFiles(path2))
|
|
|
|
// Confirm that the rule files were loaded in correctly.
|
|
errs := ruleImporter.loadGroups(ctx, []string{path1, path2})
|
|
for _, err := range errs {
|
|
require.NoError(t, err)
|
|
}
|
|
require.Equal(t, 3, len(ruleImporter.groups))
|
|
group1 := ruleImporter.groups[path1+";group0"]
|
|
require.NotNil(t, group1)
|
|
const defaultInterval = 60
|
|
require.Equal(t, defaultInterval*time.Second, group1.Interval())
|
|
gRules := group1.Rules()
|
|
require.Equal(t, 1, len(gRules))
|
|
require.Equal(t, "rule1", gRules[0].Name())
|
|
require.Equal(t, "ruleExpr", gRules[0].Query().String())
|
|
require.Equal(t, 1, len(gRules[0].Labels()))
|
|
|
|
group2 := ruleImporter.groups[path2+";group2"]
|
|
require.NotNil(t, group2)
|
|
require.Equal(t, defaultInterval*time.Second, group2.Interval())
|
|
g2Rules := group2.Rules()
|
|
require.Equal(t, 2, len(g2Rules))
|
|
require.Equal(t, "grp2_rule1", g2Rules[0].Name())
|
|
require.Equal(t, "grp2_rule1_expr", g2Rules[0].Query().String())
|
|
require.Equal(t, 0, len(g2Rules[0].Labels()))
|
|
|
|
// Backfill all recording rules then check the blocks to confirm the correct data was created.
|
|
errs = ruleImporter.importAll(ctx)
|
|
for _, err := range errs {
|
|
require.NoError(t, err)
|
|
}
|
|
|
|
opts := tsdb.DefaultOptions()
|
|
db, err := tsdb.Open(tmpDir, nil, nil, opts, nil)
|
|
require.NoError(t, err)
|
|
|
|
blocks := db.Blocks()
|
|
require.Equal(t, (i+1)*tt.expectedBlockCount, len(blocks))
|
|
|
|
q, err := db.Querier(context.Background(), math.MinInt64, math.MaxInt64)
|
|
require.NoError(t, err)
|
|
|
|
selectedSeries := q.Select(false, nil, labels.MustNewMatcher(labels.MatchRegexp, "", ".*"))
|
|
var seriesCount, samplesCount int
|
|
for selectedSeries.Next() {
|
|
seriesCount++
|
|
series := selectedSeries.At()
|
|
if len(series.Labels()) != 3 {
|
|
require.Equal(t, 2, len(series.Labels()))
|
|
x := labels.FromStrings("__name__", "grp2_rule1", "name1", "val1")
|
|
require.Equal(t, x, series.Labels())
|
|
} else {
|
|
require.Equal(t, 3, len(series.Labels()))
|
|
}
|
|
it := series.Iterator()
|
|
for it.Next() == chunkenc.ValFloat {
|
|
samplesCount++
|
|
ts, v := it.At()
|
|
if v == testValue {
|
|
require.Equal(t, int64(testTime), ts)
|
|
} else {
|
|
require.Equal(t, int64(testTime2), ts)
|
|
}
|
|
}
|
|
require.NoError(t, it.Err())
|
|
}
|
|
require.NoError(t, selectedSeries.Err())
|
|
require.Equal(t, tt.expectedSeriesCount, seriesCount)
|
|
require.Equal(t, tt.expectedSampleCount, samplesCount)
|
|
require.NoError(t, q.Close())
|
|
require.NoError(t, db.Close())
|
|
}
|
|
})
|
|
}
|
|
}
|
|
|
|
func newTestRuleImporter(ctx context.Context, start time.Time, tmpDir string, testSamples model.Matrix, maxBlockDuration time.Duration) (*ruleImporter, error) {
|
|
logger := log.NewNopLogger()
|
|
cfg := ruleImporterConfig{
|
|
outputDir: tmpDir,
|
|
start: start.Add(-10 * time.Hour),
|
|
end: start.Add(-7 * time.Hour),
|
|
evalInterval: 60 * time.Second,
|
|
maxBlockDuration: maxBlockDuration,
|
|
}
|
|
|
|
return newRuleImporter(logger, cfg, mockQueryRangeAPI{
|
|
samples: testSamples,
|
|
}), nil
|
|
}
|
|
|
|
func createSingleRuleTestFiles(path string) error {
|
|
recordingRules := `groups:
|
|
- name: group0
|
|
rules:
|
|
- record: rule1
|
|
expr: ruleExpr
|
|
labels:
|
|
testlabel11: testlabelvalue11
|
|
`
|
|
return os.WriteFile(path, []byte(recordingRules), 0o777)
|
|
}
|
|
|
|
func createMultiRuleTestFiles(path string) error {
|
|
recordingRules := `groups:
|
|
- name: group1
|
|
rules:
|
|
- record: grp1_rule1
|
|
expr: grp1_rule1_expr
|
|
labels:
|
|
testlabel11: testlabelvalue12
|
|
- name: group2
|
|
rules:
|
|
- record: grp2_rule1
|
|
expr: grp2_rule1_expr
|
|
- record: grp2_rule2
|
|
expr: grp2_rule2_expr
|
|
labels:
|
|
testlabel11: testlabelvalue13
|
|
`
|
|
return os.WriteFile(path, []byte(recordingRules), 0o777)
|
|
}
|
|
|
|
// TestBackfillLabels confirms that the labels in the rule file override the labels from the metrics
|
|
// received from Prometheus Query API, including the __name__ label.
|
|
func TestBackfillLabels(t *testing.T) {
|
|
tmpDir := t.TempDir()
|
|
ctx := context.Background()
|
|
|
|
start := time.Date(2009, time.November, 10, 6, 34, 0, 0, time.UTC)
|
|
mockAPISamples := []*model.SampleStream{
|
|
{
|
|
Metric: model.Metric{"name1": "override-me", "__name__": "override-me-too"},
|
|
Values: []model.SamplePair{{Timestamp: model.TimeFromUnixNano(start.UnixNano()), Value: 123}},
|
|
},
|
|
}
|
|
ruleImporter, err := newTestRuleImporter(ctx, start, tmpDir, mockAPISamples, defaultBlockDuration)
|
|
require.NoError(t, err)
|
|
|
|
path := filepath.Join(tmpDir, "test.file")
|
|
recordingRules := `groups:
|
|
- name: group0
|
|
rules:
|
|
- record: rulename
|
|
expr: ruleExpr
|
|
labels:
|
|
name1: value-from-rule
|
|
`
|
|
require.NoError(t, os.WriteFile(path, []byte(recordingRules), 0o777))
|
|
errs := ruleImporter.loadGroups(ctx, []string{path})
|
|
for _, err := range errs {
|
|
require.NoError(t, err)
|
|
}
|
|
|
|
errs = ruleImporter.importAll(ctx)
|
|
for _, err := range errs {
|
|
require.NoError(t, err)
|
|
}
|
|
|
|
opts := tsdb.DefaultOptions()
|
|
db, err := tsdb.Open(tmpDir, nil, nil, opts, nil)
|
|
require.NoError(t, err)
|
|
|
|
q, err := db.Querier(context.Background(), math.MinInt64, math.MaxInt64)
|
|
require.NoError(t, err)
|
|
|
|
t.Run("correct-labels", func(t *testing.T) {
|
|
selectedSeries := q.Select(false, nil, labels.MustNewMatcher(labels.MatchRegexp, "", ".*"))
|
|
for selectedSeries.Next() {
|
|
series := selectedSeries.At()
|
|
expectedLabels := labels.FromStrings("__name__", "rulename", "name1", "value-from-rule")
|
|
require.Equal(t, expectedLabels, series.Labels())
|
|
}
|
|
require.NoError(t, selectedSeries.Err())
|
|
require.NoError(t, q.Close())
|
|
require.NoError(t, db.Close())
|
|
})
|
|
}
|