mirror of
https://github.com/prometheus/prometheus.git
synced 2025-11-04 10:21:02 +01:00
5732 lines
182 KiB
Go
5732 lines
182 KiB
Go
// Copyright 2017 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 tsdb
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import (
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"context"
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"fmt"
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"io"
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"math"
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"math/rand"
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"os"
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"path"
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"path/filepath"
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"reflect"
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"sort"
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"strconv"
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"strings"
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"sync"
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"testing"
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"time"
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"github.com/prometheus/client_golang/prometheus"
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prom_testutil "github.com/prometheus/client_golang/prometheus/testutil"
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"github.com/prometheus/common/model"
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"github.com/stretchr/testify/require"
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"go.uber.org/atomic"
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"golang.org/x/sync/errgroup"
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"github.com/prometheus/prometheus/config"
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"github.com/prometheus/prometheus/model/exemplar"
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"github.com/prometheus/prometheus/model/histogram"
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"github.com/prometheus/prometheus/model/labels"
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"github.com/prometheus/prometheus/model/value"
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"github.com/prometheus/prometheus/storage"
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"github.com/prometheus/prometheus/tsdb/chunkenc"
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"github.com/prometheus/prometheus/tsdb/chunks"
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"github.com/prometheus/prometheus/tsdb/index"
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"github.com/prometheus/prometheus/tsdb/record"
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"github.com/prometheus/prometheus/tsdb/tombstones"
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"github.com/prometheus/prometheus/tsdb/tsdbutil"
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"github.com/prometheus/prometheus/tsdb/wlog"
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)
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func newTestHead(t testing.TB, chunkRange int64, compressWAL wlog.CompressionType, oooEnabled bool) (*Head, *wlog.WL) {
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dir := t.TempDir()
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wal, err := wlog.NewSize(nil, nil, filepath.Join(dir, "wal"), 32768, compressWAL)
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require.NoError(t, err)
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opts := DefaultHeadOptions()
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opts.ChunkRange = chunkRange
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opts.ChunkDirRoot = dir
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opts.EnableExemplarStorage = true
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opts.MaxExemplars.Store(config.DefaultExemplarsConfig.MaxExemplars)
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opts.EnableNativeHistograms.Store(true)
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if oooEnabled {
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opts.OutOfOrderTimeWindow.Store(10 * time.Minute.Milliseconds())
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}
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h, err := NewHead(nil, nil, wal, nil, opts, nil)
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require.NoError(t, err)
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require.NoError(t, h.chunkDiskMapper.IterateAllChunks(func(_ chunks.HeadSeriesRef, _ chunks.ChunkDiskMapperRef, _, _ int64, _ uint16, _ chunkenc.Encoding, _ bool) error {
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return nil
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}))
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return h, wal
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}
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func BenchmarkCreateSeries(b *testing.B) {
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series := genSeries(b.N, 10, 0, 0)
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h, _ := newTestHead(b, 10000, wlog.CompressionNone, false)
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b.Cleanup(func() {
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require.NoError(b, h.Close())
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})
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b.ReportAllocs()
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b.ResetTimer()
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for _, s := range series {
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h.getOrCreate(s.Labels().Hash(), s.Labels())
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}
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}
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func BenchmarkHeadAppender_Append_Commit_ExistingSeries(b *testing.B) {
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seriesCounts := []int{100, 1000, 10000}
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series := genSeries(10000, 10, 0, 0)
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for _, seriesCount := range seriesCounts {
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b.Run(fmt.Sprintf("%d series", seriesCount), func(b *testing.B) {
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for _, samplesPerAppend := range []int64{1, 2, 5, 100} {
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b.Run(fmt.Sprintf("%d samples per append", samplesPerAppend), func(b *testing.B) {
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h, _ := newTestHead(b, 10000, wlog.CompressionNone, false)
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b.Cleanup(func() { require.NoError(b, h.Close()) })
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ts := int64(1000)
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appendSamples := func() error {
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var err error
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app := h.Appender(context.Background())
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for _, s := range series[:seriesCount] {
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var ref storage.SeriesRef
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for sampleIndex := int64(0); sampleIndex < samplesPerAppend; sampleIndex++ {
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ref, err = app.Append(ref, s.Labels(), ts+sampleIndex, float64(ts+sampleIndex))
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if err != nil {
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return err
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}
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}
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}
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ts += 1000 // should increment more than highest samplesPerAppend
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return app.Commit()
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}
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// Init series, that's not what we're benchmarking here.
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require.NoError(b, appendSamples())
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b.ReportAllocs()
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b.ResetTimer()
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for i := 0; i < b.N; i++ {
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require.NoError(b, appendSamples())
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}
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})
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}
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})
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}
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}
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func populateTestWL(t testing.TB, w *wlog.WL, recs []interface{}) {
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var enc record.Encoder
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for _, r := range recs {
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switch v := r.(type) {
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case []record.RefSeries:
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require.NoError(t, w.Log(enc.Series(v, nil)))
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case []record.RefSample:
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require.NoError(t, w.Log(enc.Samples(v, nil)))
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case []tombstones.Stone:
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require.NoError(t, w.Log(enc.Tombstones(v, nil)))
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case []record.RefExemplar:
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require.NoError(t, w.Log(enc.Exemplars(v, nil)))
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case []record.RefMmapMarker:
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require.NoError(t, w.Log(enc.MmapMarkers(v, nil)))
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}
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}
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}
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func readTestWAL(t testing.TB, dir string) (recs []interface{}) {
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sr, err := wlog.NewSegmentsReader(dir)
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require.NoError(t, err)
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defer func() {
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require.NoError(t, sr.Close())
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}()
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var dec record.Decoder
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r := wlog.NewReader(sr)
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for r.Next() {
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rec := r.Record()
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switch dec.Type(rec) {
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case record.Series:
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series, err := dec.Series(rec, nil)
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require.NoError(t, err)
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recs = append(recs, series)
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case record.Samples:
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samples, err := dec.Samples(rec, nil)
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require.NoError(t, err)
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recs = append(recs, samples)
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case record.HistogramSamples:
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samples, err := dec.HistogramSamples(rec, nil)
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require.NoError(t, err)
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recs = append(recs, samples)
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case record.FloatHistogramSamples:
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samples, err := dec.FloatHistogramSamples(rec, nil)
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require.NoError(t, err)
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recs = append(recs, samples)
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case record.Tombstones:
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tstones, err := dec.Tombstones(rec, nil)
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require.NoError(t, err)
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recs = append(recs, tstones)
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case record.Metadata:
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meta, err := dec.Metadata(rec, nil)
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require.NoError(t, err)
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recs = append(recs, meta)
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case record.Exemplars:
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exemplars, err := dec.Exemplars(rec, nil)
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require.NoError(t, err)
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recs = append(recs, exemplars)
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default:
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t.Fatalf("unknown record type")
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}
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}
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require.NoError(t, r.Err())
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return recs
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}
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func BenchmarkLoadWLs(b *testing.B) {
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cases := []struct {
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// Total series is (batches*seriesPerBatch).
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batches int
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seriesPerBatch int
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samplesPerSeries int
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mmappedChunkT int64
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// The first oooSeriesPct*seriesPerBatch series in a batch are selected as "OOO" series.
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oooSeriesPct float64
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// The first oooSamplesPct*samplesPerSeries samples in an OOO series are written as OOO samples.
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oooSamplesPct float64
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oooCapMax int64
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}{
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{ // Less series and more samples. 2 hour WAL with 1 second scrape interval.
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batches: 10,
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seriesPerBatch: 100,
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samplesPerSeries: 7200,
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},
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{ // More series and less samples.
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batches: 10,
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seriesPerBatch: 10000,
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samplesPerSeries: 50,
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},
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{ // In between.
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batches: 10,
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seriesPerBatch: 1000,
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samplesPerSeries: 480,
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},
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{ // 2 hour WAL with 15 second scrape interval, and mmapped chunks up to last 100 samples.
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batches: 100,
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seriesPerBatch: 1000,
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samplesPerSeries: 480,
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mmappedChunkT: 3800,
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},
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{ // A lot of OOO samples (50% series with 50% of samples being OOO).
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batches: 10,
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seriesPerBatch: 1000,
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samplesPerSeries: 480,
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oooSeriesPct: 0.5,
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oooSamplesPct: 0.5,
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oooCapMax: DefaultOutOfOrderCapMax,
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},
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{ // Fewer OOO samples (10% of series with 10% of samples being OOO).
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batches: 10,
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seriesPerBatch: 1000,
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samplesPerSeries: 480,
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oooSeriesPct: 0.1,
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oooSamplesPct: 0.1,
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},
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{ // 2 hour WAL with 15 second scrape interval, and mmapped chunks up to last 100 samples.
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// Four mmap markers per OOO series: 480 * 0.3 = 144, 144 / 32 (DefaultOutOfOrderCapMax) = 4.
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batches: 100,
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seriesPerBatch: 1000,
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samplesPerSeries: 480,
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mmappedChunkT: 3800,
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oooSeriesPct: 0.2,
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oooSamplesPct: 0.3,
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oooCapMax: DefaultOutOfOrderCapMax,
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},
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}
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labelsPerSeries := 5
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// Rough estimates of most common % of samples that have an exemplar for each scrape.
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exemplarsPercentages := []float64{0, 0.5, 1, 5}
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lastExemplarsPerSeries := -1
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for _, c := range cases {
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for _, p := range exemplarsPercentages {
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exemplarsPerSeries := int(math.RoundToEven(float64(c.samplesPerSeries) * p / 100))
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// For tests with low samplesPerSeries we could end up testing with 0 exemplarsPerSeries
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// multiple times without this check.
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if exemplarsPerSeries == lastExemplarsPerSeries {
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continue
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}
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lastExemplarsPerSeries = exemplarsPerSeries
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b.Run(fmt.Sprintf("batches=%d,seriesPerBatch=%d,samplesPerSeries=%d,exemplarsPerSeries=%d,mmappedChunkT=%d,oooSeriesPct=%.3f,oooSamplesPct=%.3f,oooCapMax=%d", c.batches, c.seriesPerBatch, c.samplesPerSeries, exemplarsPerSeries, c.mmappedChunkT, c.oooSeriesPct, c.oooSamplesPct, c.oooCapMax),
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func(b *testing.B) {
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dir := b.TempDir()
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wal, err := wlog.New(nil, nil, dir, wlog.CompressionNone)
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require.NoError(b, err)
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var wbl *wlog.WL
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if c.oooSeriesPct != 0 {
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wbl, err = wlog.New(nil, nil, dir, wlog.CompressionNone)
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require.NoError(b, err)
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}
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// Write series.
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refSeries := make([]record.RefSeries, 0, c.seriesPerBatch)
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for k := 0; k < c.batches; k++ {
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refSeries = refSeries[:0]
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for i := k * c.seriesPerBatch; i < (k+1)*c.seriesPerBatch; i++ {
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lbls := make(map[string]string, labelsPerSeries)
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lbls[defaultLabelName] = strconv.Itoa(i)
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for j := 1; len(lbls) < labelsPerSeries; j++ {
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lbls[defaultLabelName+strconv.Itoa(j)] = defaultLabelValue + strconv.Itoa(j)
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}
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refSeries = append(refSeries, record.RefSeries{Ref: chunks.HeadSeriesRef(i) * 101, Labels: labels.FromMap(lbls)})
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}
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populateTestWL(b, wal, []interface{}{refSeries})
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}
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// Write samples.
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refSamples := make([]record.RefSample, 0, c.seriesPerBatch)
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oooSeriesPerBatch := int(float64(c.seriesPerBatch) * c.oooSeriesPct)
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oooSamplesPerSeries := int(float64(c.samplesPerSeries) * c.oooSamplesPct)
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for i := 0; i < c.samplesPerSeries; i++ {
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for j := 0; j < c.batches; j++ {
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refSamples = refSamples[:0]
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k := j * c.seriesPerBatch
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// Skip appending the first oooSamplesPerSeries samples for the series in the batch that
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// should have OOO samples. OOO samples are appended after all the in-order samples.
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if i < oooSamplesPerSeries {
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k += oooSeriesPerBatch
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}
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for ; k < (j+1)*c.seriesPerBatch; k++ {
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refSamples = append(refSamples, record.RefSample{
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Ref: chunks.HeadSeriesRef(k) * 101,
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T: int64(i) * 10,
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V: float64(i) * 100,
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})
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}
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populateTestWL(b, wal, []interface{}{refSamples})
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}
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}
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// Write mmapped chunks.
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if c.mmappedChunkT != 0 {
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chunkDiskMapper, err := chunks.NewChunkDiskMapper(nil, mmappedChunksDir(dir), chunkenc.NewPool(), chunks.DefaultWriteBufferSize, chunks.DefaultWriteQueueSize)
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require.NoError(b, err)
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cOpts := chunkOpts{
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chunkDiskMapper: chunkDiskMapper,
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chunkRange: c.mmappedChunkT,
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samplesPerChunk: DefaultSamplesPerChunk,
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}
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for k := 0; k < c.batches*c.seriesPerBatch; k++ {
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// Create one mmapped chunk per series, with one sample at the given time.
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s := newMemSeries(labels.Labels{}, chunks.HeadSeriesRef(k)*101, defaultIsolationDisabled)
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s.append(c.mmappedChunkT, 42, 0, cOpts)
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// There's only one head chunk because only a single sample is appended. mmapChunks()
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// ignores the latest chunk, so we need to cut a new head chunk to guarantee the chunk with
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// the sample at c.mmappedChunkT is mmapped.
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s.cutNewHeadChunk(c.mmappedChunkT, chunkenc.EncXOR, c.mmappedChunkT)
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s.mmapChunks(chunkDiskMapper)
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}
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require.NoError(b, chunkDiskMapper.Close())
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}
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// Write exemplars.
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refExemplars := make([]record.RefExemplar, 0, c.seriesPerBatch)
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for i := 0; i < exemplarsPerSeries; i++ {
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for j := 0; j < c.batches; j++ {
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refExemplars = refExemplars[:0]
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for k := j * c.seriesPerBatch; k < (j+1)*c.seriesPerBatch; k++ {
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refExemplars = append(refExemplars, record.RefExemplar{
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Ref: chunks.HeadSeriesRef(k) * 101,
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T: int64(i) * 10,
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V: float64(i) * 100,
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Labels: labels.FromStrings("traceID", fmt.Sprintf("trace-%d", i)),
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})
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}
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populateTestWL(b, wal, []interface{}{refExemplars})
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}
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}
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// Write OOO samples and mmap markers.
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refMarkers := make([]record.RefMmapMarker, 0, oooSeriesPerBatch)
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refSamples = make([]record.RefSample, 0, oooSeriesPerBatch)
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for i := 0; i < oooSamplesPerSeries; i++ {
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shouldAddMarkers := c.oooCapMax != 0 && i != 0 && int64(i)%c.oooCapMax == 0
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for j := 0; j < c.batches; j++ {
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refSamples = refSamples[:0]
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if shouldAddMarkers {
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refMarkers = refMarkers[:0]
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}
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for k := j * c.seriesPerBatch; k < (j*c.seriesPerBatch)+oooSeriesPerBatch; k++ {
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ref := chunks.HeadSeriesRef(k) * 101
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if shouldAddMarkers {
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// loadWBL() checks that the marker's MmapRef is less than or equal to the ref
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// for the last mmap chunk. Setting MmapRef to 0 to always pass that check.
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refMarkers = append(refMarkers, record.RefMmapMarker{Ref: ref, MmapRef: 0})
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}
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refSamples = append(refSamples, record.RefSample{
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Ref: ref,
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T: int64(i) * 10,
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V: float64(i) * 100,
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})
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}
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if shouldAddMarkers {
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populateTestWL(b, wbl, []interface{}{refMarkers})
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}
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populateTestWL(b, wal, []interface{}{refSamples})
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populateTestWL(b, wbl, []interface{}{refSamples})
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}
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}
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b.ResetTimer()
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// Load the WAL.
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for i := 0; i < b.N; i++ {
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opts := DefaultHeadOptions()
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opts.ChunkRange = 1000
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opts.ChunkDirRoot = dir
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if c.oooCapMax > 0 {
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opts.OutOfOrderCapMax.Store(c.oooCapMax)
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}
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h, err := NewHead(nil, nil, wal, wbl, opts, nil)
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require.NoError(b, err)
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h.Init(0)
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}
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b.StopTimer()
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wal.Close()
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if wbl != nil {
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wbl.Close()
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}
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})
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}
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}
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}
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// TestHead_HighConcurrencyReadAndWrite generates 1000 series with a step of 15s and fills a whole block with samples,
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// this means in total it generates 4000 chunks because with a step of 15s there are 4 chunks per block per series.
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// While appending the samples to the head it concurrently queries them from multiple go routines and verifies that the
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// returned results are correct.
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func TestHead_HighConcurrencyReadAndWrite(t *testing.T) {
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head, _ := newTestHead(t, DefaultBlockDuration, wlog.CompressionNone, false)
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defer func() {
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require.NoError(t, head.Close())
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}()
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seriesCnt := 1000
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readConcurrency := 2
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writeConcurrency := 10
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startTs := uint64(DefaultBlockDuration) // start at the second block relative to the unix epoch.
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qryRange := uint64(5 * time.Minute.Milliseconds())
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step := uint64(15 * time.Second / time.Millisecond)
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endTs := startTs + uint64(DefaultBlockDuration)
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labelSets := make([]labels.Labels, seriesCnt)
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for i := 0; i < seriesCnt; i++ {
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labelSets[i] = labels.FromStrings("seriesId", strconv.Itoa(i))
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}
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head.Init(0)
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g, ctx := errgroup.WithContext(context.Background())
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whileNotCanceled := func(f func() (bool, error)) error {
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for ctx.Err() == nil {
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cont, err := f()
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if err != nil {
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return err
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}
|
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if !cont {
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return nil
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}
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}
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return nil
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}
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|
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// Create one channel for each write worker, the channels will be used by the coordinator
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// go routine to coordinate which timestamps each write worker has to write.
|
|
writerTsCh := make([]chan uint64, writeConcurrency)
|
|
for writerTsChIdx := range writerTsCh {
|
|
writerTsCh[writerTsChIdx] = make(chan uint64)
|
|
}
|
|
|
|
// workerReadyWg is used to synchronize the start of the test,
|
|
// we only start the test once all workers signal that they're ready.
|
|
var workerReadyWg sync.WaitGroup
|
|
workerReadyWg.Add(writeConcurrency + readConcurrency)
|
|
|
|
// Start the write workers.
|
|
for wid := 0; wid < writeConcurrency; wid++ {
|
|
// Create copy of workerID to be used by worker routine.
|
|
workerID := wid
|
|
|
|
g.Go(func() error {
|
|
// The label sets which this worker will write.
|
|
workerLabelSets := labelSets[(seriesCnt/writeConcurrency)*workerID : (seriesCnt/writeConcurrency)*(workerID+1)]
|
|
|
|
// Signal that this worker is ready.
|
|
workerReadyWg.Done()
|
|
|
|
return whileNotCanceled(func() (bool, error) {
|
|
ts, ok := <-writerTsCh[workerID]
|
|
if !ok {
|
|
return false, nil
|
|
}
|
|
|
|
app := head.Appender(ctx)
|
|
for i := 0; i < len(workerLabelSets); i++ {
|
|
// We also use the timestamp as the sample value.
|
|
_, err := app.Append(0, workerLabelSets[i], int64(ts), float64(ts))
|
|
if err != nil {
|
|
return false, fmt.Errorf("Error when appending to head: %w", err)
|
|
}
|
|
}
|
|
|
|
return true, app.Commit()
|
|
})
|
|
})
|
|
}
|
|
|
|
// queryHead is a helper to query the head for a given time range and labelset.
|
|
queryHead := func(mint, maxt uint64, label labels.Label) (map[string][]chunks.Sample, error) {
|
|
q, err := NewBlockQuerier(head, int64(mint), int64(maxt))
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
return query(t, q, labels.MustNewMatcher(labels.MatchEqual, label.Name, label.Value)), nil
|
|
}
|
|
|
|
// readerTsCh will be used by the coordinator go routine to coordinate which timestamps the reader should read.
|
|
readerTsCh := make(chan uint64)
|
|
|
|
// Start the read workers.
|
|
for wid := 0; wid < readConcurrency; wid++ {
|
|
// Create copy of threadID to be used by worker routine.
|
|
workerID := wid
|
|
|
|
g.Go(func() error {
|
|
querySeriesRef := (seriesCnt / readConcurrency) * workerID
|
|
|
|
// Signal that this worker is ready.
|
|
workerReadyWg.Done()
|
|
|
|
return whileNotCanceled(func() (bool, error) {
|
|
ts, ok := <-readerTsCh
|
|
if !ok {
|
|
return false, nil
|
|
}
|
|
|
|
querySeriesRef = (querySeriesRef + 1) % seriesCnt
|
|
lbls := labelSets[querySeriesRef]
|
|
// lbls has a single entry; extract it so we can run a query.
|
|
var lbl labels.Label
|
|
lbls.Range(func(l labels.Label) {
|
|
lbl = l
|
|
})
|
|
samples, err := queryHead(ts-qryRange, ts, lbl)
|
|
if err != nil {
|
|
return false, err
|
|
}
|
|
|
|
if len(samples) != 1 {
|
|
return false, fmt.Errorf("expected 1 series, got %d", len(samples))
|
|
}
|
|
|
|
series := lbls.String()
|
|
expectSampleCnt := qryRange/step + 1
|
|
if expectSampleCnt != uint64(len(samples[series])) {
|
|
return false, fmt.Errorf("expected %d samples, got %d", expectSampleCnt, len(samples[series]))
|
|
}
|
|
|
|
for sampleIdx, sample := range samples[series] {
|
|
expectedValue := ts - qryRange + (uint64(sampleIdx) * step)
|
|
if sample.T() != int64(expectedValue) {
|
|
return false, fmt.Errorf("expected sample %d to have ts %d, got %d", sampleIdx, expectedValue, sample.T())
|
|
}
|
|
if sample.F() != float64(expectedValue) {
|
|
return false, fmt.Errorf("expected sample %d to have value %d, got %f", sampleIdx, expectedValue, sample.F())
|
|
}
|
|
}
|
|
|
|
return true, nil
|
|
})
|
|
})
|
|
}
|
|
|
|
// Start the coordinator go routine.
|
|
g.Go(func() error {
|
|
currTs := startTs
|
|
|
|
defer func() {
|
|
// End of the test, close all channels to stop the workers.
|
|
for _, ch := range writerTsCh {
|
|
close(ch)
|
|
}
|
|
close(readerTsCh)
|
|
}()
|
|
|
|
// Wait until all workers are ready to start the test.
|
|
workerReadyWg.Wait()
|
|
return whileNotCanceled(func() (bool, error) {
|
|
// Send the current timestamp to each of the writers.
|
|
for _, ch := range writerTsCh {
|
|
select {
|
|
case ch <- currTs:
|
|
case <-ctx.Done():
|
|
return false, nil
|
|
}
|
|
}
|
|
|
|
// Once data for at least <qryRange> has been ingested, send the current timestamp to the readers.
|
|
if currTs > startTs+qryRange {
|
|
select {
|
|
case readerTsCh <- currTs - step:
|
|
case <-ctx.Done():
|
|
return false, nil
|
|
}
|
|
}
|
|
|
|
currTs += step
|
|
if currTs > endTs {
|
|
return false, nil
|
|
}
|
|
|
|
return true, nil
|
|
})
|
|
})
|
|
|
|
require.NoError(t, g.Wait())
|
|
}
|
|
|
|
func TestHead_ReadWAL(t *testing.T) {
|
|
for _, compress := range []wlog.CompressionType{wlog.CompressionNone, wlog.CompressionSnappy, wlog.CompressionZstd} {
|
|
t.Run(fmt.Sprintf("compress=%s", compress), func(t *testing.T) {
|
|
entries := []interface{}{
|
|
[]record.RefSeries{
|
|
{Ref: 10, Labels: labels.FromStrings("a", "1")},
|
|
{Ref: 11, Labels: labels.FromStrings("a", "2")},
|
|
{Ref: 100, Labels: labels.FromStrings("a", "3")},
|
|
},
|
|
[]record.RefSample{
|
|
{Ref: 0, T: 99, V: 1},
|
|
{Ref: 10, T: 100, V: 2},
|
|
{Ref: 100, T: 100, V: 3},
|
|
},
|
|
[]record.RefSeries{
|
|
{Ref: 50, Labels: labels.FromStrings("a", "4")},
|
|
// This series has two refs pointing to it.
|
|
{Ref: 101, Labels: labels.FromStrings("a", "3")},
|
|
},
|
|
[]record.RefSample{
|
|
{Ref: 10, T: 101, V: 5},
|
|
{Ref: 50, T: 101, V: 6},
|
|
{Ref: 101, T: 101, V: 7},
|
|
},
|
|
[]tombstones.Stone{
|
|
{Ref: 0, Intervals: []tombstones.Interval{{Mint: 99, Maxt: 101}}},
|
|
},
|
|
[]record.RefExemplar{
|
|
{Ref: 10, T: 100, V: 1, Labels: labels.FromStrings("traceID", "asdf")},
|
|
},
|
|
}
|
|
|
|
head, w := newTestHead(t, 1000, compress, false)
|
|
defer func() {
|
|
require.NoError(t, head.Close())
|
|
}()
|
|
|
|
populateTestWL(t, w, entries)
|
|
|
|
require.NoError(t, head.Init(math.MinInt64))
|
|
require.Equal(t, uint64(101), head.lastSeriesID.Load())
|
|
|
|
s10 := head.series.getByID(10)
|
|
s11 := head.series.getByID(11)
|
|
s50 := head.series.getByID(50)
|
|
s100 := head.series.getByID(100)
|
|
|
|
require.Equal(t, labels.FromStrings("a", "1"), s10.lset)
|
|
require.Equal(t, (*memSeries)(nil), s11) // Series without samples should be garbage collected at head.Init().
|
|
require.Equal(t, labels.FromStrings("a", "4"), s50.lset)
|
|
require.Equal(t, labels.FromStrings("a", "3"), s100.lset)
|
|
|
|
expandChunk := func(c chunkenc.Iterator) (x []sample) {
|
|
for c.Next() == chunkenc.ValFloat {
|
|
t, v := c.At()
|
|
x = append(x, sample{t: t, f: v})
|
|
}
|
|
require.NoError(t, c.Err())
|
|
return x
|
|
}
|
|
|
|
c, _, _, err := s10.chunk(0, head.chunkDiskMapper, &head.memChunkPool)
|
|
require.NoError(t, err)
|
|
require.Equal(t, []sample{{100, 2, nil, nil}, {101, 5, nil, nil}}, expandChunk(c.chunk.Iterator(nil)))
|
|
c, _, _, err = s50.chunk(0, head.chunkDiskMapper, &head.memChunkPool)
|
|
require.NoError(t, err)
|
|
require.Equal(t, []sample{{101, 6, nil, nil}}, expandChunk(c.chunk.Iterator(nil)))
|
|
// The samples before the new series record should be discarded since a duplicate record
|
|
// is only possible when old samples were compacted.
|
|
c, _, _, err = s100.chunk(0, head.chunkDiskMapper, &head.memChunkPool)
|
|
require.NoError(t, err)
|
|
require.Equal(t, []sample{{101, 7, nil, nil}}, expandChunk(c.chunk.Iterator(nil)))
|
|
|
|
q, err := head.ExemplarQuerier(context.Background())
|
|
require.NoError(t, err)
|
|
e, err := q.Select(0, 1000, []*labels.Matcher{labels.MustNewMatcher(labels.MatchEqual, "a", "1")})
|
|
require.NoError(t, err)
|
|
require.Equal(t, exemplar.Exemplar{Ts: 100, Value: 1, Labels: labels.FromStrings("traceID", "asdf")}, e[0].Exemplars[0])
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestHead_WALMultiRef(t *testing.T) {
|
|
head, w := newTestHead(t, 1000, wlog.CompressionNone, false)
|
|
|
|
require.NoError(t, head.Init(0))
|
|
|
|
app := head.Appender(context.Background())
|
|
ref1, err := app.Append(0, labels.FromStrings("foo", "bar"), 100, 1)
|
|
require.NoError(t, err)
|
|
require.NoError(t, app.Commit())
|
|
require.Equal(t, 1.0, prom_testutil.ToFloat64(head.metrics.chunksCreated))
|
|
|
|
// Add another sample outside chunk range to mmap a chunk.
|
|
app = head.Appender(context.Background())
|
|
_, err = app.Append(0, labels.FromStrings("foo", "bar"), 1500, 2)
|
|
require.NoError(t, err)
|
|
require.NoError(t, app.Commit())
|
|
require.Equal(t, 2.0, prom_testutil.ToFloat64(head.metrics.chunksCreated))
|
|
|
|
require.NoError(t, head.Truncate(1600))
|
|
|
|
app = head.Appender(context.Background())
|
|
ref2, err := app.Append(0, labels.FromStrings("foo", "bar"), 1700, 3)
|
|
require.NoError(t, err)
|
|
require.NoError(t, app.Commit())
|
|
require.Equal(t, 3.0, prom_testutil.ToFloat64(head.metrics.chunksCreated))
|
|
|
|
// Add another sample outside chunk range to mmap a chunk.
|
|
app = head.Appender(context.Background())
|
|
_, err = app.Append(0, labels.FromStrings("foo", "bar"), 2000, 4)
|
|
require.NoError(t, err)
|
|
require.NoError(t, app.Commit())
|
|
require.Equal(t, 4.0, prom_testutil.ToFloat64(head.metrics.chunksCreated))
|
|
|
|
require.NotEqual(t, ref1, ref2, "Refs are the same")
|
|
require.NoError(t, head.Close())
|
|
|
|
w, err = wlog.New(nil, nil, w.Dir(), wlog.CompressionNone)
|
|
require.NoError(t, err)
|
|
|
|
opts := DefaultHeadOptions()
|
|
opts.ChunkRange = 1000
|
|
opts.ChunkDirRoot = w.Dir()
|
|
head, err = NewHead(nil, nil, w, nil, opts, nil)
|
|
require.NoError(t, err)
|
|
require.NoError(t, head.Init(0))
|
|
defer func() {
|
|
require.NoError(t, head.Close())
|
|
}()
|
|
|
|
q, err := NewBlockQuerier(head, 0, 2100)
|
|
require.NoError(t, err)
|
|
series := query(t, q, labels.MustNewMatcher(labels.MatchEqual, "foo", "bar"))
|
|
// The samples before the new ref should be discarded since Head truncation
|
|
// happens only after compacting the Head.
|
|
require.Equal(t, map[string][]chunks.Sample{`{foo="bar"}`: {
|
|
sample{1700, 3, nil, nil},
|
|
sample{2000, 4, nil, nil},
|
|
}}, series)
|
|
}
|
|
|
|
func TestHead_ActiveAppenders(t *testing.T) {
|
|
head, _ := newTestHead(t, 1000, wlog.CompressionNone, false)
|
|
defer head.Close()
|
|
|
|
require.NoError(t, head.Init(0))
|
|
|
|
// First rollback with no samples.
|
|
app := head.Appender(context.Background())
|
|
require.Equal(t, 1.0, prom_testutil.ToFloat64(head.metrics.activeAppenders))
|
|
require.NoError(t, app.Rollback())
|
|
require.Equal(t, 0.0, prom_testutil.ToFloat64(head.metrics.activeAppenders))
|
|
|
|
// Then commit with no samples.
|
|
app = head.Appender(context.Background())
|
|
require.NoError(t, app.Commit())
|
|
require.Equal(t, 0.0, prom_testutil.ToFloat64(head.metrics.activeAppenders))
|
|
|
|
// Now rollback with one sample.
|
|
app = head.Appender(context.Background())
|
|
_, err := app.Append(0, labels.FromStrings("foo", "bar"), 100, 1)
|
|
require.NoError(t, err)
|
|
require.Equal(t, 1.0, prom_testutil.ToFloat64(head.metrics.activeAppenders))
|
|
require.NoError(t, app.Rollback())
|
|
require.Equal(t, 0.0, prom_testutil.ToFloat64(head.metrics.activeAppenders))
|
|
|
|
// Now commit with one sample.
|
|
app = head.Appender(context.Background())
|
|
_, err = app.Append(0, labels.FromStrings("foo", "bar"), 100, 1)
|
|
require.NoError(t, err)
|
|
require.NoError(t, app.Commit())
|
|
require.Equal(t, 0.0, prom_testutil.ToFloat64(head.metrics.activeAppenders))
|
|
}
|
|
|
|
func TestHead_UnknownWALRecord(t *testing.T) {
|
|
head, w := newTestHead(t, 1000, wlog.CompressionNone, false)
|
|
w.Log([]byte{255, 42})
|
|
require.NoError(t, head.Init(0))
|
|
require.NoError(t, head.Close())
|
|
}
|
|
|
|
func TestHead_Truncate(t *testing.T) {
|
|
h, _ := newTestHead(t, 1000, wlog.CompressionNone, false)
|
|
defer func() {
|
|
require.NoError(t, h.Close())
|
|
}()
|
|
|
|
h.initTime(0)
|
|
|
|
ctx := context.Background()
|
|
|
|
s1, _, _ := h.getOrCreate(1, labels.FromStrings("a", "1", "b", "1"))
|
|
s2, _, _ := h.getOrCreate(2, labels.FromStrings("a", "2", "b", "1"))
|
|
s3, _, _ := h.getOrCreate(3, labels.FromStrings("a", "1", "b", "2"))
|
|
s4, _, _ := h.getOrCreate(4, labels.FromStrings("a", "2", "b", "2", "c", "1"))
|
|
|
|
s1.mmappedChunks = []*mmappedChunk{
|
|
{minTime: 0, maxTime: 999},
|
|
{minTime: 1000, maxTime: 1999},
|
|
{minTime: 2000, maxTime: 2999},
|
|
}
|
|
s2.mmappedChunks = []*mmappedChunk{
|
|
{minTime: 1000, maxTime: 1999},
|
|
{minTime: 2000, maxTime: 2999},
|
|
{minTime: 3000, maxTime: 3999},
|
|
}
|
|
s3.mmappedChunks = []*mmappedChunk{
|
|
{minTime: 0, maxTime: 999},
|
|
{minTime: 1000, maxTime: 1999},
|
|
}
|
|
s4.mmappedChunks = []*mmappedChunk{}
|
|
|
|
// Truncation need not be aligned.
|
|
require.NoError(t, h.Truncate(1))
|
|
|
|
require.NoError(t, h.Truncate(2000))
|
|
|
|
require.Equal(t, []*mmappedChunk{
|
|
{minTime: 2000, maxTime: 2999},
|
|
}, h.series.getByID(s1.ref).mmappedChunks)
|
|
|
|
require.Equal(t, []*mmappedChunk{
|
|
{minTime: 2000, maxTime: 2999},
|
|
{minTime: 3000, maxTime: 3999},
|
|
}, h.series.getByID(s2.ref).mmappedChunks)
|
|
|
|
require.Nil(t, h.series.getByID(s3.ref))
|
|
require.Nil(t, h.series.getByID(s4.ref))
|
|
|
|
postingsA1, _ := index.ExpandPostings(h.postings.Get("a", "1"))
|
|
postingsA2, _ := index.ExpandPostings(h.postings.Get("a", "2"))
|
|
postingsB1, _ := index.ExpandPostings(h.postings.Get("b", "1"))
|
|
postingsB2, _ := index.ExpandPostings(h.postings.Get("b", "2"))
|
|
postingsC1, _ := index.ExpandPostings(h.postings.Get("c", "1"))
|
|
postingsAll, _ := index.ExpandPostings(h.postings.Get("", ""))
|
|
|
|
require.Equal(t, []storage.SeriesRef{storage.SeriesRef(s1.ref)}, postingsA1)
|
|
require.Equal(t, []storage.SeriesRef{storage.SeriesRef(s2.ref)}, postingsA2)
|
|
require.Equal(t, []storage.SeriesRef{storage.SeriesRef(s1.ref), storage.SeriesRef(s2.ref)}, postingsB1)
|
|
require.Equal(t, []storage.SeriesRef{storage.SeriesRef(s1.ref), storage.SeriesRef(s2.ref)}, postingsAll)
|
|
require.Nil(t, postingsB2)
|
|
require.Nil(t, postingsC1)
|
|
|
|
iter := h.postings.Symbols()
|
|
symbols := []string{}
|
|
for iter.Next() {
|
|
symbols = append(symbols, iter.At())
|
|
}
|
|
require.Equal(t,
|
|
[]string{"" /* from 'all' postings list */, "1", "2", "a", "b"},
|
|
symbols)
|
|
|
|
values := map[string]map[string]struct{}{}
|
|
for _, name := range h.postings.LabelNames() {
|
|
ss, ok := values[name]
|
|
if !ok {
|
|
ss = map[string]struct{}{}
|
|
values[name] = ss
|
|
}
|
|
for _, value := range h.postings.LabelValues(ctx, name) {
|
|
ss[value] = struct{}{}
|
|
}
|
|
}
|
|
require.Equal(t, map[string]map[string]struct{}{
|
|
"a": {"1": struct{}{}, "2": struct{}{}},
|
|
"b": {"1": struct{}{}},
|
|
}, values)
|
|
}
|
|
|
|
// Validate various behaviors brought on by firstChunkID accounting for
|
|
// garbage collected chunks.
|
|
func TestMemSeries_truncateChunks(t *testing.T) {
|
|
dir := t.TempDir()
|
|
// This is usually taken from the Head, but passing manually here.
|
|
chunkDiskMapper, err := chunks.NewChunkDiskMapper(nil, dir, chunkenc.NewPool(), chunks.DefaultWriteBufferSize, chunks.DefaultWriteQueueSize)
|
|
require.NoError(t, err)
|
|
defer func() {
|
|
require.NoError(t, chunkDiskMapper.Close())
|
|
}()
|
|
cOpts := chunkOpts{
|
|
chunkDiskMapper: chunkDiskMapper,
|
|
chunkRange: 2000,
|
|
samplesPerChunk: DefaultSamplesPerChunk,
|
|
}
|
|
|
|
memChunkPool := sync.Pool{
|
|
New: func() interface{} {
|
|
return &memChunk{}
|
|
},
|
|
}
|
|
|
|
s := newMemSeries(labels.FromStrings("a", "b"), 1, defaultIsolationDisabled)
|
|
|
|
for i := 0; i < 4000; i += 5 {
|
|
ok, _ := s.append(int64(i), float64(i), 0, cOpts)
|
|
require.True(t, ok, "sample append failed")
|
|
}
|
|
s.mmapChunks(chunkDiskMapper)
|
|
|
|
// Check that truncate removes half of the chunks and afterwards
|
|
// that the ID of the last chunk still gives us the same chunk afterwards.
|
|
countBefore := len(s.mmappedChunks) + 1 // +1 for the head chunk.
|
|
lastID := s.headChunkID(countBefore - 1)
|
|
lastChunk, _, _, err := s.chunk(lastID, chunkDiskMapper, &memChunkPool)
|
|
require.NoError(t, err)
|
|
require.NotNil(t, lastChunk)
|
|
|
|
chk, _, _, err := s.chunk(0, chunkDiskMapper, &memChunkPool)
|
|
require.NotNil(t, chk)
|
|
require.NoError(t, err)
|
|
|
|
s.truncateChunksBefore(2000, 0)
|
|
|
|
require.Equal(t, int64(2000), s.mmappedChunks[0].minTime)
|
|
_, _, _, err = s.chunk(0, chunkDiskMapper, &memChunkPool)
|
|
require.Equal(t, storage.ErrNotFound, err, "first chunks not gone")
|
|
require.Equal(t, countBefore/2, len(s.mmappedChunks)+1) // +1 for the head chunk.
|
|
chk, _, _, err = s.chunk(lastID, chunkDiskMapper, &memChunkPool)
|
|
require.NoError(t, err)
|
|
require.Equal(t, lastChunk, chk)
|
|
}
|
|
|
|
func TestMemSeries_truncateChunks_scenarios(t *testing.T) {
|
|
const chunkRange = 100
|
|
const chunkStep = 5
|
|
|
|
tests := []struct {
|
|
name string
|
|
headChunks int // the number of head chubks to create on memSeries by appending enough samples
|
|
mmappedChunks int // the number of mmapped chunks to create on memSeries by appending enough samples
|
|
truncateBefore int64 // the mint to pass to truncateChunksBefore()
|
|
expectedTruncated int // the number of chunks that we're expecting be truncated and returned by truncateChunksBefore()
|
|
expectedHead int // the expected number of head chunks after truncation
|
|
expectedMmap int // the expected number of mmapped chunks after truncation
|
|
expectedFirstChunkID chunks.HeadChunkID // the expected series.firstChunkID after truncation
|
|
}{
|
|
{
|
|
name: "empty memSeries",
|
|
truncateBefore: chunkRange * 10,
|
|
},
|
|
{
|
|
name: "single head chunk, not truncated",
|
|
headChunks: 1,
|
|
expectedHead: 1,
|
|
},
|
|
{
|
|
name: "single head chunk, truncated",
|
|
headChunks: 1,
|
|
truncateBefore: chunkRange,
|
|
expectedTruncated: 1,
|
|
expectedHead: 0,
|
|
expectedFirstChunkID: 1,
|
|
},
|
|
{
|
|
name: "2 head chunks, not truncated",
|
|
headChunks: 2,
|
|
expectedHead: 2,
|
|
},
|
|
{
|
|
name: "2 head chunks, first truncated",
|
|
headChunks: 2,
|
|
truncateBefore: chunkRange,
|
|
expectedTruncated: 1,
|
|
expectedHead: 1,
|
|
expectedFirstChunkID: 1,
|
|
},
|
|
{
|
|
name: "2 head chunks, everything truncated",
|
|
headChunks: 2,
|
|
truncateBefore: chunkRange * 2,
|
|
expectedTruncated: 2,
|
|
expectedHead: 0,
|
|
expectedFirstChunkID: 2,
|
|
},
|
|
{
|
|
name: "no head chunks, 3 mmap chunks, second mmap truncated",
|
|
headChunks: 0,
|
|
mmappedChunks: 3,
|
|
truncateBefore: chunkRange * 2,
|
|
expectedTruncated: 2,
|
|
expectedHead: 0,
|
|
expectedMmap: 1,
|
|
expectedFirstChunkID: 2,
|
|
},
|
|
{
|
|
name: "single head chunk, single mmap chunk, not truncated",
|
|
headChunks: 1,
|
|
mmappedChunks: 1,
|
|
expectedHead: 1,
|
|
expectedMmap: 1,
|
|
},
|
|
{
|
|
name: "single head chunk, single mmap chunk, mmap truncated",
|
|
headChunks: 1,
|
|
mmappedChunks: 1,
|
|
truncateBefore: chunkRange,
|
|
expectedTruncated: 1,
|
|
expectedHead: 1,
|
|
expectedMmap: 0,
|
|
expectedFirstChunkID: 1,
|
|
},
|
|
{
|
|
name: "5 head chunk, 5 mmap chunk, third head truncated",
|
|
headChunks: 5,
|
|
mmappedChunks: 5,
|
|
truncateBefore: chunkRange * 7,
|
|
expectedTruncated: 7,
|
|
expectedHead: 3,
|
|
expectedMmap: 0,
|
|
expectedFirstChunkID: 7,
|
|
},
|
|
{
|
|
name: "2 head chunks, 3 mmap chunks, second mmap truncated",
|
|
headChunks: 2,
|
|
mmappedChunks: 3,
|
|
truncateBefore: chunkRange * 2,
|
|
expectedTruncated: 2,
|
|
expectedHead: 2,
|
|
expectedMmap: 1,
|
|
expectedFirstChunkID: 2,
|
|
},
|
|
}
|
|
|
|
for _, tc := range tests {
|
|
t.Run(tc.name, func(t *testing.T) {
|
|
dir := t.TempDir()
|
|
chunkDiskMapper, err := chunks.NewChunkDiskMapper(nil, dir, chunkenc.NewPool(), chunks.DefaultWriteBufferSize, chunks.DefaultWriteQueueSize)
|
|
require.NoError(t, err)
|
|
defer func() {
|
|
require.NoError(t, chunkDiskMapper.Close())
|
|
}()
|
|
|
|
series := newMemSeries(labels.EmptyLabels(), 1, true)
|
|
|
|
cOpts := chunkOpts{
|
|
chunkDiskMapper: chunkDiskMapper,
|
|
chunkRange: chunkRange,
|
|
samplesPerChunk: DefaultSamplesPerChunk,
|
|
}
|
|
|
|
var headStart int
|
|
if tc.mmappedChunks > 0 {
|
|
headStart = (tc.mmappedChunks + 1) * chunkRange
|
|
for i := 0; i < (tc.mmappedChunks+1)*chunkRange; i += chunkStep {
|
|
ok, _ := series.append(int64(i), float64(i), 0, cOpts)
|
|
require.True(t, ok, "sample append failed")
|
|
}
|
|
series.mmapChunks(chunkDiskMapper)
|
|
}
|
|
|
|
if tc.headChunks == 0 {
|
|
series.headChunks = nil
|
|
} else {
|
|
for i := headStart; i < chunkRange*(tc.mmappedChunks+tc.headChunks); i += chunkStep {
|
|
ok, _ := series.append(int64(i), float64(i), 0, cOpts)
|
|
require.True(t, ok, "sample append failed: %d", i)
|
|
}
|
|
}
|
|
|
|
if tc.headChunks > 0 {
|
|
require.NotNil(t, series.headChunks, "head chunk is missing")
|
|
require.Equal(t, tc.headChunks, series.headChunks.len(), "wrong number of head chunks")
|
|
} else {
|
|
require.Nil(t, series.headChunks, "head chunk is present")
|
|
}
|
|
require.Len(t, series.mmappedChunks, tc.mmappedChunks, "wrong number of mmapped chunks")
|
|
|
|
truncated := series.truncateChunksBefore(tc.truncateBefore, 0)
|
|
require.Equal(t, tc.expectedTruncated, truncated, "wrong number of truncated chunks returned")
|
|
|
|
require.Len(t, series.mmappedChunks, tc.expectedMmap, "wrong number of mmappedChunks after truncation")
|
|
|
|
if tc.expectedHead > 0 {
|
|
require.NotNil(t, series.headChunks, "headChunks should is nil after truncation")
|
|
require.Equal(t, tc.expectedHead, series.headChunks.len(), "wrong number of head chunks after truncation")
|
|
require.Nil(t, series.headChunks.oldest().prev, "last head chunk cannot have any next chunk set")
|
|
} else {
|
|
require.Nil(t, series.headChunks, "headChunks should is non-nil after truncation")
|
|
}
|
|
|
|
if series.headChunks != nil || len(series.mmappedChunks) > 0 {
|
|
require.GreaterOrEqual(t, series.maxTime(), tc.truncateBefore, "wrong value of series.maxTime() after truncation")
|
|
} else {
|
|
require.Equal(t, int64(math.MinInt64), series.maxTime(), "wrong value of series.maxTime() after truncation")
|
|
}
|
|
|
|
require.Equal(t, tc.expectedFirstChunkID, series.firstChunkID, "wrong firstChunkID after truncation")
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestHeadDeleteSeriesWithoutSamples(t *testing.T) {
|
|
for _, compress := range []wlog.CompressionType{wlog.CompressionNone, wlog.CompressionSnappy, wlog.CompressionZstd} {
|
|
t.Run(fmt.Sprintf("compress=%s", compress), func(t *testing.T) {
|
|
entries := []interface{}{
|
|
[]record.RefSeries{
|
|
{Ref: 10, Labels: labels.FromStrings("a", "1")},
|
|
},
|
|
[]record.RefSample{},
|
|
[]record.RefSeries{
|
|
{Ref: 50, Labels: labels.FromStrings("a", "2")},
|
|
},
|
|
[]record.RefSample{
|
|
{Ref: 50, T: 80, V: 1},
|
|
{Ref: 50, T: 90, V: 1},
|
|
},
|
|
}
|
|
head, w := newTestHead(t, 1000, compress, false)
|
|
defer func() {
|
|
require.NoError(t, head.Close())
|
|
}()
|
|
|
|
populateTestWL(t, w, entries)
|
|
|
|
require.NoError(t, head.Init(math.MinInt64))
|
|
|
|
require.NoError(t, head.Delete(context.Background(), 0, 100, labels.MustNewMatcher(labels.MatchEqual, "a", "1")))
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestHeadDeleteSimple(t *testing.T) {
|
|
buildSmpls := func(s []int64) []sample {
|
|
ss := make([]sample, 0, len(s))
|
|
for _, t := range s {
|
|
ss = append(ss, sample{t: t, f: float64(t)})
|
|
}
|
|
return ss
|
|
}
|
|
smplsAll := buildSmpls([]int64{0, 1, 2, 3, 4, 5, 6, 7, 8, 9})
|
|
lblDefault := labels.Label{Name: "a", Value: "b"}
|
|
lblsDefault := labels.FromStrings("a", "b")
|
|
|
|
cases := []struct {
|
|
dranges tombstones.Intervals
|
|
addSamples []sample // Samples to add after delete.
|
|
smplsExp []sample
|
|
}{
|
|
{
|
|
dranges: tombstones.Intervals{{Mint: 0, Maxt: 3}},
|
|
smplsExp: buildSmpls([]int64{4, 5, 6, 7, 8, 9}),
|
|
},
|
|
{
|
|
dranges: tombstones.Intervals{{Mint: 1, Maxt: 3}},
|
|
smplsExp: buildSmpls([]int64{0, 4, 5, 6, 7, 8, 9}),
|
|
},
|
|
{
|
|
dranges: tombstones.Intervals{{Mint: 1, Maxt: 3}, {Mint: 4, Maxt: 7}},
|
|
smplsExp: buildSmpls([]int64{0, 8, 9}),
|
|
},
|
|
{
|
|
dranges: tombstones.Intervals{{Mint: 1, Maxt: 3}, {Mint: 4, Maxt: 700}},
|
|
smplsExp: buildSmpls([]int64{0}),
|
|
},
|
|
{ // This case is to ensure that labels and symbols are deleted.
|
|
dranges: tombstones.Intervals{{Mint: 0, Maxt: 9}},
|
|
smplsExp: buildSmpls([]int64{}),
|
|
},
|
|
{
|
|
dranges: tombstones.Intervals{{Mint: 1, Maxt: 3}},
|
|
addSamples: buildSmpls([]int64{11, 13, 15}),
|
|
smplsExp: buildSmpls([]int64{0, 4, 5, 6, 7, 8, 9, 11, 13, 15}),
|
|
},
|
|
{
|
|
// After delete, the appended samples in the deleted range should be visible
|
|
// as the tombstones are clamped to head min/max time.
|
|
dranges: tombstones.Intervals{{Mint: 7, Maxt: 20}},
|
|
addSamples: buildSmpls([]int64{11, 13, 15}),
|
|
smplsExp: buildSmpls([]int64{0, 1, 2, 3, 4, 5, 6, 11, 13, 15}),
|
|
},
|
|
}
|
|
|
|
for _, compress := range []wlog.CompressionType{wlog.CompressionNone, wlog.CompressionSnappy, wlog.CompressionZstd} {
|
|
t.Run(fmt.Sprintf("compress=%s", compress), func(t *testing.T) {
|
|
for _, c := range cases {
|
|
head, w := newTestHead(t, 1000, compress, false)
|
|
require.NoError(t, head.Init(0))
|
|
|
|
app := head.Appender(context.Background())
|
|
for _, smpl := range smplsAll {
|
|
_, err := app.Append(0, lblsDefault, smpl.t, smpl.f)
|
|
require.NoError(t, err)
|
|
|
|
}
|
|
require.NoError(t, app.Commit())
|
|
|
|
// Delete the ranges.
|
|
for _, r := range c.dranges {
|
|
require.NoError(t, head.Delete(context.Background(), r.Mint, r.Maxt, labels.MustNewMatcher(labels.MatchEqual, lblDefault.Name, lblDefault.Value)))
|
|
}
|
|
|
|
// Add more samples.
|
|
app = head.Appender(context.Background())
|
|
for _, smpl := range c.addSamples {
|
|
_, err := app.Append(0, lblsDefault, smpl.t, smpl.f)
|
|
require.NoError(t, err)
|
|
|
|
}
|
|
require.NoError(t, app.Commit())
|
|
|
|
// Compare the samples for both heads - before and after the reloadBlocks.
|
|
reloadedW, err := wlog.New(nil, nil, w.Dir(), compress) // Use a new wal to ensure deleted samples are gone even after a reloadBlocks.
|
|
require.NoError(t, err)
|
|
opts := DefaultHeadOptions()
|
|
opts.ChunkRange = 1000
|
|
opts.ChunkDirRoot = reloadedW.Dir()
|
|
reloadedHead, err := NewHead(nil, nil, reloadedW, nil, opts, nil)
|
|
require.NoError(t, err)
|
|
require.NoError(t, reloadedHead.Init(0))
|
|
|
|
// Compare the query results for both heads - before and after the reloadBlocks.
|
|
Outer:
|
|
for _, h := range []*Head{head, reloadedHead} {
|
|
q, err := NewBlockQuerier(h, h.MinTime(), h.MaxTime())
|
|
require.NoError(t, err)
|
|
actSeriesSet := q.Select(context.Background(), false, nil, labels.MustNewMatcher(labels.MatchEqual, lblDefault.Name, lblDefault.Value))
|
|
require.NoError(t, q.Close())
|
|
expSeriesSet := newMockSeriesSet([]storage.Series{
|
|
storage.NewListSeries(lblsDefault, func() []chunks.Sample {
|
|
ss := make([]chunks.Sample, 0, len(c.smplsExp))
|
|
for _, s := range c.smplsExp {
|
|
ss = append(ss, s)
|
|
}
|
|
return ss
|
|
}(),
|
|
),
|
|
})
|
|
|
|
for {
|
|
eok, rok := expSeriesSet.Next(), actSeriesSet.Next()
|
|
require.Equal(t, eok, rok)
|
|
|
|
if !eok {
|
|
require.NoError(t, h.Close())
|
|
require.NoError(t, actSeriesSet.Err())
|
|
require.Empty(t, actSeriesSet.Warnings())
|
|
continue Outer
|
|
}
|
|
expSeries := expSeriesSet.At()
|
|
actSeries := actSeriesSet.At()
|
|
|
|
require.Equal(t, expSeries.Labels(), actSeries.Labels())
|
|
|
|
smplExp, errExp := storage.ExpandSamples(expSeries.Iterator(nil), nil)
|
|
smplRes, errRes := storage.ExpandSamples(actSeries.Iterator(nil), nil)
|
|
|
|
require.Equal(t, errExp, errRes)
|
|
require.Equal(t, smplExp, smplRes)
|
|
}
|
|
}
|
|
}
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestDeleteUntilCurMax(t *testing.T) {
|
|
hb, _ := newTestHead(t, 1000000, wlog.CompressionNone, false)
|
|
defer func() {
|
|
require.NoError(t, hb.Close())
|
|
}()
|
|
|
|
numSamples := int64(10)
|
|
app := hb.Appender(context.Background())
|
|
smpls := make([]float64, numSamples)
|
|
for i := int64(0); i < numSamples; i++ {
|
|
smpls[i] = rand.Float64()
|
|
_, err := app.Append(0, labels.FromStrings("a", "b"), i, smpls[i])
|
|
require.NoError(t, err)
|
|
}
|
|
require.NoError(t, app.Commit())
|
|
require.NoError(t, hb.Delete(context.Background(), 0, 10000, labels.MustNewMatcher(labels.MatchEqual, "a", "b")))
|
|
|
|
// Test the series returns no samples. The series is cleared only after compaction.
|
|
q, err := NewBlockQuerier(hb, 0, 100000)
|
|
require.NoError(t, err)
|
|
res := q.Select(context.Background(), false, nil, labels.MustNewMatcher(labels.MatchEqual, "a", "b"))
|
|
require.True(t, res.Next(), "series is not present")
|
|
s := res.At()
|
|
it := s.Iterator(nil)
|
|
require.Equal(t, chunkenc.ValNone, it.Next(), "expected no samples")
|
|
for res.Next() {
|
|
}
|
|
require.NoError(t, res.Err())
|
|
require.Empty(t, res.Warnings())
|
|
|
|
// Add again and test for presence.
|
|
app = hb.Appender(context.Background())
|
|
_, err = app.Append(0, labels.FromStrings("a", "b"), 11, 1)
|
|
require.NoError(t, err)
|
|
require.NoError(t, app.Commit())
|
|
q, err = NewBlockQuerier(hb, 0, 100000)
|
|
require.NoError(t, err)
|
|
res = q.Select(context.Background(), false, nil, labels.MustNewMatcher(labels.MatchEqual, "a", "b"))
|
|
require.True(t, res.Next(), "series don't exist")
|
|
exps := res.At()
|
|
it = exps.Iterator(nil)
|
|
resSamples, err := storage.ExpandSamples(it, newSample)
|
|
require.NoError(t, err)
|
|
require.Equal(t, []chunks.Sample{sample{11, 1, nil, nil}}, resSamples)
|
|
for res.Next() {
|
|
}
|
|
require.NoError(t, res.Err())
|
|
require.Empty(t, res.Warnings())
|
|
}
|
|
|
|
func TestDeletedSamplesAndSeriesStillInWALAfterCheckpoint(t *testing.T) {
|
|
numSamples := 10000
|
|
|
|
// Enough samples to cause a checkpoint.
|
|
hb, w := newTestHead(t, int64(numSamples)*10, wlog.CompressionNone, false)
|
|
|
|
for i := 0; i < numSamples; i++ {
|
|
app := hb.Appender(context.Background())
|
|
_, err := app.Append(0, labels.FromStrings("a", "b"), int64(i), 0)
|
|
require.NoError(t, err)
|
|
require.NoError(t, app.Commit())
|
|
}
|
|
require.NoError(t, hb.Delete(context.Background(), 0, int64(numSamples), labels.MustNewMatcher(labels.MatchEqual, "a", "b")))
|
|
require.NoError(t, hb.Truncate(1))
|
|
require.NoError(t, hb.Close())
|
|
|
|
// Confirm there's been a checkpoint.
|
|
cdir, _, err := wlog.LastCheckpoint(w.Dir())
|
|
require.NoError(t, err)
|
|
// Read in checkpoint and WAL.
|
|
recs := readTestWAL(t, cdir)
|
|
recs = append(recs, readTestWAL(t, w.Dir())...)
|
|
|
|
var series, samples, stones, metadata int
|
|
for _, rec := range recs {
|
|
switch rec.(type) {
|
|
case []record.RefSeries:
|
|
series++
|
|
case []record.RefSample:
|
|
samples++
|
|
case []tombstones.Stone:
|
|
stones++
|
|
case []record.RefMetadata:
|
|
metadata++
|
|
default:
|
|
t.Fatalf("unknown record type")
|
|
}
|
|
}
|
|
require.Equal(t, 1, series)
|
|
require.Equal(t, 9999, samples)
|
|
require.Equal(t, 1, stones)
|
|
require.Equal(t, 0, metadata)
|
|
}
|
|
|
|
func TestDelete_e2e(t *testing.T) {
|
|
numDatapoints := 1000
|
|
numRanges := 1000
|
|
timeInterval := int64(2)
|
|
// Create 8 series with 1000 data-points of different ranges, delete and run queries.
|
|
lbls := [][]labels.Label{
|
|
{
|
|
{Name: "a", Value: "b"},
|
|
{Name: "instance", Value: "localhost:9090"},
|
|
{Name: "job", Value: "prometheus"},
|
|
},
|
|
{
|
|
{Name: "a", Value: "b"},
|
|
{Name: "instance", Value: "127.0.0.1:9090"},
|
|
{Name: "job", Value: "prometheus"},
|
|
},
|
|
{
|
|
{Name: "a", Value: "b"},
|
|
{Name: "instance", Value: "127.0.0.1:9090"},
|
|
{Name: "job", Value: "prom-k8s"},
|
|
},
|
|
{
|
|
{Name: "a", Value: "b"},
|
|
{Name: "instance", Value: "localhost:9090"},
|
|
{Name: "job", Value: "prom-k8s"},
|
|
},
|
|
{
|
|
{Name: "a", Value: "c"},
|
|
{Name: "instance", Value: "localhost:9090"},
|
|
{Name: "job", Value: "prometheus"},
|
|
},
|
|
{
|
|
{Name: "a", Value: "c"},
|
|
{Name: "instance", Value: "127.0.0.1:9090"},
|
|
{Name: "job", Value: "prometheus"},
|
|
},
|
|
{
|
|
{Name: "a", Value: "c"},
|
|
{Name: "instance", Value: "127.0.0.1:9090"},
|
|
{Name: "job", Value: "prom-k8s"},
|
|
},
|
|
{
|
|
{Name: "a", Value: "c"},
|
|
{Name: "instance", Value: "localhost:9090"},
|
|
{Name: "job", Value: "prom-k8s"},
|
|
},
|
|
}
|
|
seriesMap := map[string][]chunks.Sample{}
|
|
for _, l := range lbls {
|
|
seriesMap[labels.New(l...).String()] = []chunks.Sample{}
|
|
}
|
|
|
|
hb, _ := newTestHead(t, 100000, wlog.CompressionNone, false)
|
|
defer func() {
|
|
require.NoError(t, hb.Close())
|
|
}()
|
|
|
|
app := hb.Appender(context.Background())
|
|
for _, l := range lbls {
|
|
ls := labels.New(l...)
|
|
series := []chunks.Sample{}
|
|
ts := rand.Int63n(300)
|
|
for i := 0; i < numDatapoints; i++ {
|
|
v := rand.Float64()
|
|
_, err := app.Append(0, ls, ts, v)
|
|
require.NoError(t, err)
|
|
series = append(series, sample{ts, v, nil, nil})
|
|
ts += rand.Int63n(timeInterval) + 1
|
|
}
|
|
seriesMap[labels.New(l...).String()] = series
|
|
}
|
|
require.NoError(t, app.Commit())
|
|
// Delete a time-range from each-selector.
|
|
dels := []struct {
|
|
ms []*labels.Matcher
|
|
drange tombstones.Intervals
|
|
}{
|
|
{
|
|
ms: []*labels.Matcher{labels.MustNewMatcher(labels.MatchEqual, "a", "b")},
|
|
drange: tombstones.Intervals{{Mint: 300, Maxt: 500}, {Mint: 600, Maxt: 670}},
|
|
},
|
|
{
|
|
ms: []*labels.Matcher{
|
|
labels.MustNewMatcher(labels.MatchEqual, "a", "b"),
|
|
labels.MustNewMatcher(labels.MatchEqual, "job", "prom-k8s"),
|
|
},
|
|
drange: tombstones.Intervals{{Mint: 300, Maxt: 500}, {Mint: 100, Maxt: 670}},
|
|
},
|
|
{
|
|
ms: []*labels.Matcher{
|
|
labels.MustNewMatcher(labels.MatchEqual, "a", "c"),
|
|
labels.MustNewMatcher(labels.MatchEqual, "instance", "localhost:9090"),
|
|
labels.MustNewMatcher(labels.MatchEqual, "job", "prometheus"),
|
|
},
|
|
drange: tombstones.Intervals{{Mint: 300, Maxt: 400}, {Mint: 100, Maxt: 6700}},
|
|
},
|
|
// TODO: Add Regexp Matchers.
|
|
}
|
|
for _, del := range dels {
|
|
for _, r := range del.drange {
|
|
require.NoError(t, hb.Delete(context.Background(), r.Mint, r.Maxt, del.ms...))
|
|
}
|
|
matched := labels.Slice{}
|
|
for _, l := range lbls {
|
|
s := labels.Selector(del.ms)
|
|
ls := labels.New(l...)
|
|
if s.Matches(ls) {
|
|
matched = append(matched, ls)
|
|
}
|
|
}
|
|
sort.Sort(matched)
|
|
for i := 0; i < numRanges; i++ {
|
|
q, err := NewBlockQuerier(hb, 0, 100000)
|
|
require.NoError(t, err)
|
|
defer q.Close()
|
|
ss := q.Select(context.Background(), true, nil, del.ms...)
|
|
// Build the mockSeriesSet.
|
|
matchedSeries := make([]storage.Series, 0, len(matched))
|
|
for _, m := range matched {
|
|
smpls := seriesMap[m.String()]
|
|
smpls = deletedSamples(smpls, del.drange)
|
|
// Only append those series for which samples exist as mockSeriesSet
|
|
// doesn't skip series with no samples.
|
|
// TODO: But sometimes SeriesSet returns an empty chunkenc.Iterator
|
|
if len(smpls) > 0 {
|
|
matchedSeries = append(matchedSeries, storage.NewListSeries(m, smpls))
|
|
}
|
|
}
|
|
expSs := newMockSeriesSet(matchedSeries)
|
|
// Compare both SeriesSets.
|
|
for {
|
|
eok, rok := expSs.Next(), ss.Next()
|
|
// Skip a series if iterator is empty.
|
|
if rok {
|
|
for ss.At().Iterator(nil).Next() == chunkenc.ValNone {
|
|
rok = ss.Next()
|
|
if !rok {
|
|
break
|
|
}
|
|
}
|
|
}
|
|
require.Equal(t, eok, rok)
|
|
if !eok {
|
|
break
|
|
}
|
|
sexp := expSs.At()
|
|
sres := ss.At()
|
|
require.Equal(t, sexp.Labels(), sres.Labels())
|
|
smplExp, errExp := storage.ExpandSamples(sexp.Iterator(nil), nil)
|
|
smplRes, errRes := storage.ExpandSamples(sres.Iterator(nil), nil)
|
|
require.Equal(t, errExp, errRes)
|
|
require.Equal(t, smplExp, smplRes)
|
|
}
|
|
require.NoError(t, ss.Err())
|
|
require.Empty(t, ss.Warnings())
|
|
}
|
|
}
|
|
}
|
|
|
|
func boundedSamples(full []chunks.Sample, mint, maxt int64) []chunks.Sample {
|
|
for len(full) > 0 {
|
|
if full[0].T() >= mint {
|
|
break
|
|
}
|
|
full = full[1:]
|
|
}
|
|
for i, s := range full {
|
|
// labels.Labelinate on the first sample larger than maxt.
|
|
if s.T() > maxt {
|
|
return full[:i]
|
|
}
|
|
}
|
|
// maxt is after highest sample.
|
|
return full
|
|
}
|
|
|
|
func deletedSamples(full []chunks.Sample, dranges tombstones.Intervals) []chunks.Sample {
|
|
ds := make([]chunks.Sample, 0, len(full))
|
|
Outer:
|
|
for _, s := range full {
|
|
for _, r := range dranges {
|
|
if r.InBounds(s.T()) {
|
|
continue Outer
|
|
}
|
|
}
|
|
ds = append(ds, s)
|
|
}
|
|
|
|
return ds
|
|
}
|
|
|
|
func TestComputeChunkEndTime(t *testing.T) {
|
|
cases := map[string]struct {
|
|
start, cur, max int64
|
|
ratioToFull float64
|
|
res int64
|
|
}{
|
|
"exactly 1/4 full, even increment": {
|
|
start: 0,
|
|
cur: 250,
|
|
max: 1000,
|
|
ratioToFull: 4,
|
|
res: 1000,
|
|
},
|
|
"exactly 1/4 full, uneven increment": {
|
|
start: 100,
|
|
cur: 200,
|
|
max: 1000,
|
|
ratioToFull: 4,
|
|
res: 550,
|
|
},
|
|
"decimal ratio to full": {
|
|
start: 5000,
|
|
cur: 5110,
|
|
max: 10000,
|
|
ratioToFull: 4.2,
|
|
res: 5500,
|
|
},
|
|
// Case where we fit floored 0 chunks. Must catch division by 0
|
|
// and default to maximum time.
|
|
"fit floored 0 chunks": {
|
|
start: 0,
|
|
cur: 500,
|
|
max: 1000,
|
|
ratioToFull: 4,
|
|
res: 1000,
|
|
},
|
|
// Catch division by zero for cur == start. Strictly not a possible case.
|
|
"cur == start": {
|
|
start: 100,
|
|
cur: 100,
|
|
max: 1000,
|
|
ratioToFull: 4,
|
|
res: 104,
|
|
},
|
|
}
|
|
|
|
for testName, tc := range cases {
|
|
t.Run(testName, func(t *testing.T) {
|
|
got := computeChunkEndTime(tc.start, tc.cur, tc.max, tc.ratioToFull)
|
|
if got != tc.res {
|
|
t.Errorf("expected %d for (start: %d, cur: %d, max: %d, ratioToFull: %f), got %d", tc.res, tc.start, tc.cur, tc.max, tc.ratioToFull, got)
|
|
}
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestMemSeries_append(t *testing.T) {
|
|
dir := t.TempDir()
|
|
// This is usually taken from the Head, but passing manually here.
|
|
chunkDiskMapper, err := chunks.NewChunkDiskMapper(nil, dir, chunkenc.NewPool(), chunks.DefaultWriteBufferSize, chunks.DefaultWriteQueueSize)
|
|
require.NoError(t, err)
|
|
defer func() {
|
|
require.NoError(t, chunkDiskMapper.Close())
|
|
}()
|
|
cOpts := chunkOpts{
|
|
chunkDiskMapper: chunkDiskMapper,
|
|
chunkRange: 500,
|
|
samplesPerChunk: DefaultSamplesPerChunk,
|
|
}
|
|
|
|
s := newMemSeries(labels.Labels{}, 1, defaultIsolationDisabled)
|
|
|
|
// Add first two samples at the very end of a chunk range and the next two
|
|
// on and after it.
|
|
// New chunk must correctly be cut at 1000.
|
|
ok, chunkCreated := s.append(998, 1, 0, cOpts)
|
|
require.True(t, ok, "append failed")
|
|
require.True(t, chunkCreated, "first sample created chunk")
|
|
|
|
ok, chunkCreated = s.append(999, 2, 0, cOpts)
|
|
require.True(t, ok, "append failed")
|
|
require.False(t, chunkCreated, "second sample should use same chunk")
|
|
s.mmapChunks(chunkDiskMapper)
|
|
|
|
ok, chunkCreated = s.append(1000, 3, 0, cOpts)
|
|
require.True(t, ok, "append failed")
|
|
require.True(t, chunkCreated, "expected new chunk on boundary")
|
|
|
|
ok, chunkCreated = s.append(1001, 4, 0, cOpts)
|
|
require.True(t, ok, "append failed")
|
|
require.False(t, chunkCreated, "second sample should use same chunk")
|
|
|
|
s.mmapChunks(chunkDiskMapper)
|
|
require.Len(t, s.mmappedChunks, 1, "there should be only 1 mmapped chunk")
|
|
require.Equal(t, int64(998), s.mmappedChunks[0].minTime, "wrong chunk range")
|
|
require.Equal(t, int64(999), s.mmappedChunks[0].maxTime, "wrong chunk range")
|
|
require.Equal(t, int64(1000), s.headChunks.minTime, "wrong chunk range")
|
|
require.Equal(t, int64(1001), s.headChunks.maxTime, "wrong chunk range")
|
|
|
|
// Fill the range [1000,2000) with many samples. Intermediate chunks should be cut
|
|
// at approximately 120 samples per chunk.
|
|
for i := 1; i < 1000; i++ {
|
|
ok, _ := s.append(1001+int64(i), float64(i), 0, cOpts)
|
|
require.True(t, ok, "append failed")
|
|
}
|
|
s.mmapChunks(chunkDiskMapper)
|
|
|
|
require.Greater(t, len(s.mmappedChunks)+1, 7, "expected intermediate chunks")
|
|
|
|
// All chunks but the first and last should now be moderately full.
|
|
for i, c := range s.mmappedChunks[1:] {
|
|
chk, err := chunkDiskMapper.Chunk(c.ref)
|
|
require.NoError(t, err)
|
|
require.Greater(t, chk.NumSamples(), 100, "unexpected small chunk %d of length %d", i, chk.NumSamples())
|
|
}
|
|
}
|
|
|
|
func TestMemSeries_appendHistogram(t *testing.T) {
|
|
dir := t.TempDir()
|
|
// This is usually taken from the Head, but passing manually here.
|
|
chunkDiskMapper, err := chunks.NewChunkDiskMapper(nil, dir, chunkenc.NewPool(), chunks.DefaultWriteBufferSize, chunks.DefaultWriteQueueSize)
|
|
require.NoError(t, err)
|
|
defer func() {
|
|
require.NoError(t, chunkDiskMapper.Close())
|
|
}()
|
|
cOpts := chunkOpts{
|
|
chunkDiskMapper: chunkDiskMapper,
|
|
chunkRange: int64(1000),
|
|
samplesPerChunk: DefaultSamplesPerChunk,
|
|
}
|
|
|
|
s := newMemSeries(labels.Labels{}, 1, defaultIsolationDisabled)
|
|
|
|
histograms := tsdbutil.GenerateTestHistograms(4)
|
|
histogramWithOneMoreBucket := histograms[3].Copy()
|
|
histogramWithOneMoreBucket.Count++
|
|
histogramWithOneMoreBucket.Sum += 1.23
|
|
histogramWithOneMoreBucket.PositiveSpans[1].Length = 3
|
|
histogramWithOneMoreBucket.PositiveBuckets = append(histogramWithOneMoreBucket.PositiveBuckets, 1)
|
|
|
|
// Add first two samples at the very end of a chunk range and the next two
|
|
// on and after it.
|
|
// New chunk must correctly be cut at 1000.
|
|
ok, chunkCreated := s.appendHistogram(998, histograms[0], 0, cOpts)
|
|
require.True(t, ok, "append failed")
|
|
require.True(t, chunkCreated, "first sample created chunk")
|
|
|
|
ok, chunkCreated = s.appendHistogram(999, histograms[1], 0, cOpts)
|
|
require.True(t, ok, "append failed")
|
|
require.False(t, chunkCreated, "second sample should use same chunk")
|
|
|
|
ok, chunkCreated = s.appendHistogram(1000, histograms[2], 0, cOpts)
|
|
require.True(t, ok, "append failed")
|
|
require.True(t, chunkCreated, "expected new chunk on boundary")
|
|
|
|
ok, chunkCreated = s.appendHistogram(1001, histograms[3], 0, cOpts)
|
|
require.True(t, ok, "append failed")
|
|
require.False(t, chunkCreated, "second sample should use same chunk")
|
|
|
|
s.mmapChunks(chunkDiskMapper)
|
|
require.Len(t, s.mmappedChunks, 1, "there should be only 1 mmapped chunk")
|
|
require.Equal(t, int64(998), s.mmappedChunks[0].minTime, "wrong chunk range")
|
|
require.Equal(t, int64(999), s.mmappedChunks[0].maxTime, "wrong chunk range")
|
|
require.Equal(t, int64(1000), s.headChunks.minTime, "wrong chunk range")
|
|
require.Equal(t, int64(1001), s.headChunks.maxTime, "wrong chunk range")
|
|
|
|
ok, chunkCreated = s.appendHistogram(1002, histogramWithOneMoreBucket, 0, cOpts)
|
|
require.True(t, ok, "append failed")
|
|
require.False(t, chunkCreated, "third sample should trigger a re-encoded chunk")
|
|
|
|
s.mmapChunks(chunkDiskMapper)
|
|
require.Len(t, s.mmappedChunks, 1, "there should be only 1 mmapped chunk")
|
|
require.Equal(t, int64(998), s.mmappedChunks[0].minTime, "wrong chunk range")
|
|
require.Equal(t, int64(999), s.mmappedChunks[0].maxTime, "wrong chunk range")
|
|
require.Equal(t, int64(1000), s.headChunks.minTime, "wrong chunk range")
|
|
require.Equal(t, int64(1002), s.headChunks.maxTime, "wrong chunk range")
|
|
}
|
|
|
|
func TestMemSeries_append_atVariableRate(t *testing.T) {
|
|
const samplesPerChunk = 120
|
|
dir := t.TempDir()
|
|
// This is usually taken from the Head, but passing manually here.
|
|
chunkDiskMapper, err := chunks.NewChunkDiskMapper(nil, dir, chunkenc.NewPool(), chunks.DefaultWriteBufferSize, chunks.DefaultWriteQueueSize)
|
|
require.NoError(t, err)
|
|
t.Cleanup(func() {
|
|
require.NoError(t, chunkDiskMapper.Close())
|
|
})
|
|
cOpts := chunkOpts{
|
|
chunkDiskMapper: chunkDiskMapper,
|
|
chunkRange: DefaultBlockDuration,
|
|
samplesPerChunk: samplesPerChunk,
|
|
}
|
|
|
|
s := newMemSeries(labels.Labels{}, 1, defaultIsolationDisabled)
|
|
|
|
// At this slow rate, we will fill the chunk in two block durations.
|
|
slowRate := (DefaultBlockDuration * 2) / samplesPerChunk
|
|
|
|
var nextTs int64
|
|
var totalAppendedSamples int
|
|
for i := 0; i < samplesPerChunk/4; i++ {
|
|
ok, _ := s.append(nextTs, float64(i), 0, cOpts)
|
|
require.Truef(t, ok, "slow sample %d was not appended", i)
|
|
nextTs += slowRate
|
|
totalAppendedSamples++
|
|
}
|
|
require.Equal(t, DefaultBlockDuration, s.nextAt, "after appending a samplesPerChunk/4 samples at a slow rate, we should aim to cut a new block at the default block duration %d, but it's set to %d", DefaultBlockDuration, s.nextAt)
|
|
|
|
// Suddenly, the rate increases and we receive a sample every millisecond.
|
|
for i := 0; i < math.MaxUint16; i++ {
|
|
ok, _ := s.append(nextTs, float64(i), 0, cOpts)
|
|
require.Truef(t, ok, "quick sample %d was not appended", i)
|
|
nextTs++
|
|
totalAppendedSamples++
|
|
}
|
|
ok, chunkCreated := s.append(DefaultBlockDuration, float64(0), 0, cOpts)
|
|
require.True(t, ok, "new chunk sample was not appended")
|
|
require.True(t, chunkCreated, "sample at block duration timestamp should create a new chunk")
|
|
|
|
s.mmapChunks(chunkDiskMapper)
|
|
var totalSamplesInChunks int
|
|
for i, c := range s.mmappedChunks {
|
|
totalSamplesInChunks += int(c.numSamples)
|
|
require.LessOrEqualf(t, c.numSamples, uint16(2*samplesPerChunk), "mmapped chunk %d has more than %d samples", i, 2*samplesPerChunk)
|
|
}
|
|
require.Equal(t, totalAppendedSamples, totalSamplesInChunks, "wrong number of samples in %d mmapped chunks", len(s.mmappedChunks))
|
|
}
|
|
|
|
func TestGCChunkAccess(t *testing.T) {
|
|
// Put a chunk, select it. GC it and then access it.
|
|
const chunkRange = 1000
|
|
h, _ := newTestHead(t, chunkRange, wlog.CompressionNone, false)
|
|
defer func() {
|
|
require.NoError(t, h.Close())
|
|
}()
|
|
|
|
cOpts := chunkOpts{
|
|
chunkDiskMapper: h.chunkDiskMapper,
|
|
chunkRange: chunkRange,
|
|
samplesPerChunk: DefaultSamplesPerChunk,
|
|
}
|
|
|
|
h.initTime(0)
|
|
|
|
s, _, _ := h.getOrCreate(1, labels.FromStrings("a", "1"))
|
|
|
|
// Appending 2 samples for the first chunk.
|
|
ok, chunkCreated := s.append(0, 0, 0, cOpts)
|
|
require.True(t, ok, "series append failed")
|
|
require.True(t, chunkCreated, "chunks was not created")
|
|
ok, chunkCreated = s.append(999, 999, 0, cOpts)
|
|
require.True(t, ok, "series append failed")
|
|
require.False(t, chunkCreated, "chunks was created")
|
|
|
|
// A new chunks should be created here as it's beyond the chunk range.
|
|
ok, chunkCreated = s.append(1000, 1000, 0, cOpts)
|
|
require.True(t, ok, "series append failed")
|
|
require.True(t, chunkCreated, "chunks was not created")
|
|
ok, chunkCreated = s.append(1999, 1999, 0, cOpts)
|
|
require.True(t, ok, "series append failed")
|
|
require.False(t, chunkCreated, "chunks was created")
|
|
|
|
idx := h.indexRange(0, 1500)
|
|
var (
|
|
chunks []chunks.Meta
|
|
builder labels.ScratchBuilder
|
|
)
|
|
require.NoError(t, idx.Series(1, &builder, &chunks))
|
|
|
|
require.Equal(t, labels.FromStrings("a", "1"), builder.Labels())
|
|
require.Len(t, chunks, 2)
|
|
|
|
cr, err := h.chunksRange(0, 1500, nil)
|
|
require.NoError(t, err)
|
|
_, _, err = cr.ChunkOrIterable(chunks[0])
|
|
require.NoError(t, err)
|
|
_, _, err = cr.ChunkOrIterable(chunks[1])
|
|
require.NoError(t, err)
|
|
|
|
require.NoError(t, h.Truncate(1500)) // Remove a chunk.
|
|
|
|
_, _, err = cr.ChunkOrIterable(chunks[0])
|
|
require.Equal(t, storage.ErrNotFound, err)
|
|
_, _, err = cr.ChunkOrIterable(chunks[1])
|
|
require.NoError(t, err)
|
|
}
|
|
|
|
func TestGCSeriesAccess(t *testing.T) {
|
|
// Put a series, select it. GC it and then access it.
|
|
const chunkRange = 1000
|
|
h, _ := newTestHead(t, chunkRange, wlog.CompressionNone, false)
|
|
defer func() {
|
|
require.NoError(t, h.Close())
|
|
}()
|
|
|
|
cOpts := chunkOpts{
|
|
chunkDiskMapper: h.chunkDiskMapper,
|
|
chunkRange: chunkRange,
|
|
samplesPerChunk: DefaultSamplesPerChunk,
|
|
}
|
|
|
|
h.initTime(0)
|
|
|
|
s, _, _ := h.getOrCreate(1, labels.FromStrings("a", "1"))
|
|
|
|
// Appending 2 samples for the first chunk.
|
|
ok, chunkCreated := s.append(0, 0, 0, cOpts)
|
|
require.True(t, ok, "series append failed")
|
|
require.True(t, chunkCreated, "chunks was not created")
|
|
ok, chunkCreated = s.append(999, 999, 0, cOpts)
|
|
require.True(t, ok, "series append failed")
|
|
require.False(t, chunkCreated, "chunks was created")
|
|
|
|
// A new chunks should be created here as it's beyond the chunk range.
|
|
ok, chunkCreated = s.append(1000, 1000, 0, cOpts)
|
|
require.True(t, ok, "series append failed")
|
|
require.True(t, chunkCreated, "chunks was not created")
|
|
ok, chunkCreated = s.append(1999, 1999, 0, cOpts)
|
|
require.True(t, ok, "series append failed")
|
|
require.False(t, chunkCreated, "chunks was created")
|
|
|
|
idx := h.indexRange(0, 2000)
|
|
var (
|
|
chunks []chunks.Meta
|
|
builder labels.ScratchBuilder
|
|
)
|
|
require.NoError(t, idx.Series(1, &builder, &chunks))
|
|
|
|
require.Equal(t, labels.FromStrings("a", "1"), builder.Labels())
|
|
require.Len(t, chunks, 2)
|
|
|
|
cr, err := h.chunksRange(0, 2000, nil)
|
|
require.NoError(t, err)
|
|
_, _, err = cr.ChunkOrIterable(chunks[0])
|
|
require.NoError(t, err)
|
|
_, _, err = cr.ChunkOrIterable(chunks[1])
|
|
require.NoError(t, err)
|
|
|
|
require.NoError(t, h.Truncate(2000)) // Remove the series.
|
|
|
|
require.Equal(t, (*memSeries)(nil), h.series.getByID(1))
|
|
|
|
_, _, err = cr.ChunkOrIterable(chunks[0])
|
|
require.Equal(t, storage.ErrNotFound, err)
|
|
_, _, err = cr.ChunkOrIterable(chunks[1])
|
|
require.Equal(t, storage.ErrNotFound, err)
|
|
}
|
|
|
|
func TestUncommittedSamplesNotLostOnTruncate(t *testing.T) {
|
|
h, _ := newTestHead(t, 1000, wlog.CompressionNone, false)
|
|
defer func() {
|
|
require.NoError(t, h.Close())
|
|
}()
|
|
|
|
h.initTime(0)
|
|
|
|
app := h.appender()
|
|
lset := labels.FromStrings("a", "1")
|
|
_, err := app.Append(0, lset, 2100, 1)
|
|
require.NoError(t, err)
|
|
|
|
require.NoError(t, h.Truncate(2000))
|
|
require.NotNil(t, h.series.getByHash(lset.Hash(), lset), "series should not have been garbage collected")
|
|
|
|
require.NoError(t, app.Commit())
|
|
|
|
q, err := NewBlockQuerier(h, 1500, 2500)
|
|
require.NoError(t, err)
|
|
defer q.Close()
|
|
|
|
ss := q.Select(context.Background(), false, nil, labels.MustNewMatcher(labels.MatchEqual, "a", "1"))
|
|
require.True(t, ss.Next())
|
|
for ss.Next() {
|
|
}
|
|
require.NoError(t, ss.Err())
|
|
require.Empty(t, ss.Warnings())
|
|
}
|
|
|
|
func TestRemoveSeriesAfterRollbackAndTruncate(t *testing.T) {
|
|
h, _ := newTestHead(t, 1000, wlog.CompressionNone, false)
|
|
defer func() {
|
|
require.NoError(t, h.Close())
|
|
}()
|
|
|
|
h.initTime(0)
|
|
|
|
app := h.appender()
|
|
lset := labels.FromStrings("a", "1")
|
|
_, err := app.Append(0, lset, 2100, 1)
|
|
require.NoError(t, err)
|
|
|
|
require.NoError(t, h.Truncate(2000))
|
|
require.NotNil(t, h.series.getByHash(lset.Hash(), lset), "series should not have been garbage collected")
|
|
|
|
require.NoError(t, app.Rollback())
|
|
|
|
q, err := NewBlockQuerier(h, 1500, 2500)
|
|
require.NoError(t, err)
|
|
|
|
ss := q.Select(context.Background(), false, nil, labels.MustNewMatcher(labels.MatchEqual, "a", "1"))
|
|
require.False(t, ss.Next())
|
|
require.Empty(t, ss.Warnings())
|
|
require.NoError(t, q.Close())
|
|
|
|
// Truncate again, this time the series should be deleted
|
|
require.NoError(t, h.Truncate(2050))
|
|
require.Equal(t, (*memSeries)(nil), h.series.getByHash(lset.Hash(), lset))
|
|
}
|
|
|
|
func TestHead_LogRollback(t *testing.T) {
|
|
for _, compress := range []wlog.CompressionType{wlog.CompressionNone, wlog.CompressionSnappy, wlog.CompressionZstd} {
|
|
t.Run(fmt.Sprintf("compress=%s", compress), func(t *testing.T) {
|
|
h, w := newTestHead(t, 1000, compress, false)
|
|
defer func() {
|
|
require.NoError(t, h.Close())
|
|
}()
|
|
|
|
app := h.Appender(context.Background())
|
|
_, err := app.Append(0, labels.FromStrings("a", "b"), 1, 2)
|
|
require.NoError(t, err)
|
|
|
|
require.NoError(t, app.Rollback())
|
|
recs := readTestWAL(t, w.Dir())
|
|
|
|
require.Len(t, recs, 1)
|
|
|
|
series, ok := recs[0].([]record.RefSeries)
|
|
require.True(t, ok, "expected series record but got %+v", recs[0])
|
|
require.Equal(t, []record.RefSeries{{Ref: 1, Labels: labels.FromStrings("a", "b")}}, series)
|
|
})
|
|
}
|
|
}
|
|
|
|
// TestWalRepair_DecodingError ensures that a repair is run for an error
|
|
// when decoding a record.
|
|
func TestWalRepair_DecodingError(t *testing.T) {
|
|
var enc record.Encoder
|
|
for name, test := range map[string]struct {
|
|
corrFunc func(rec []byte) []byte // Func that applies the corruption to a record.
|
|
rec []byte
|
|
totalRecs int
|
|
expRecs int
|
|
}{
|
|
"decode_series": {
|
|
func(rec []byte) []byte {
|
|
return rec[:3]
|
|
},
|
|
enc.Series([]record.RefSeries{{Ref: 1, Labels: labels.FromStrings("a", "b")}}, []byte{}),
|
|
9,
|
|
5,
|
|
},
|
|
"decode_samples": {
|
|
func(rec []byte) []byte {
|
|
return rec[:3]
|
|
},
|
|
enc.Samples([]record.RefSample{{Ref: 0, T: 99, V: 1}}, []byte{}),
|
|
9,
|
|
5,
|
|
},
|
|
"decode_tombstone": {
|
|
func(rec []byte) []byte {
|
|
return rec[:3]
|
|
},
|
|
enc.Tombstones([]tombstones.Stone{{Ref: 1, Intervals: tombstones.Intervals{}}}, []byte{}),
|
|
9,
|
|
5,
|
|
},
|
|
} {
|
|
for _, compress := range []wlog.CompressionType{wlog.CompressionNone, wlog.CompressionSnappy, wlog.CompressionZstd} {
|
|
t.Run(fmt.Sprintf("%s,compress=%s", name, compress), func(t *testing.T) {
|
|
dir := t.TempDir()
|
|
|
|
// Fill the wal and corrupt it.
|
|
{
|
|
w, err := wlog.New(nil, nil, filepath.Join(dir, "wal"), compress)
|
|
require.NoError(t, err)
|
|
|
|
for i := 1; i <= test.totalRecs; i++ {
|
|
// At this point insert a corrupted record.
|
|
if i-1 == test.expRecs {
|
|
require.NoError(t, w.Log(test.corrFunc(test.rec)))
|
|
continue
|
|
}
|
|
require.NoError(t, w.Log(test.rec))
|
|
}
|
|
|
|
opts := DefaultHeadOptions()
|
|
opts.ChunkRange = 1
|
|
opts.ChunkDirRoot = w.Dir()
|
|
h, err := NewHead(nil, nil, w, nil, opts, nil)
|
|
require.NoError(t, err)
|
|
require.Equal(t, 0.0, prom_testutil.ToFloat64(h.metrics.walCorruptionsTotal))
|
|
initErr := h.Init(math.MinInt64)
|
|
|
|
var cerr *wlog.CorruptionErr
|
|
require.ErrorAs(t, initErr, &cerr, "reading the wal didn't return corruption error")
|
|
require.NoError(t, h.Close()) // Head will close the wal as well.
|
|
}
|
|
|
|
// Open the db to trigger a repair.
|
|
{
|
|
db, err := Open(dir, nil, nil, DefaultOptions(), nil)
|
|
require.NoError(t, err)
|
|
defer func() {
|
|
require.NoError(t, db.Close())
|
|
}()
|
|
require.Equal(t, 1.0, prom_testutil.ToFloat64(db.head.metrics.walCorruptionsTotal))
|
|
}
|
|
|
|
// Read the wal content after the repair.
|
|
{
|
|
sr, err := wlog.NewSegmentsReader(filepath.Join(dir, "wal"))
|
|
require.NoError(t, err)
|
|
defer sr.Close()
|
|
r := wlog.NewReader(sr)
|
|
|
|
var actRec int
|
|
for r.Next() {
|
|
actRec++
|
|
}
|
|
require.NoError(t, r.Err())
|
|
require.Equal(t, test.expRecs, actRec, "Wrong number of intact records")
|
|
}
|
|
})
|
|
}
|
|
}
|
|
}
|
|
|
|
// TestWblRepair_DecodingError ensures that a repair is run for an error
|
|
// when decoding a record.
|
|
func TestWblRepair_DecodingError(t *testing.T) {
|
|
var enc record.Encoder
|
|
corrFunc := func(rec []byte) []byte {
|
|
return rec[:3]
|
|
}
|
|
rec := enc.Samples([]record.RefSample{{Ref: 0, T: 99, V: 1}}, []byte{})
|
|
totalRecs := 9
|
|
expRecs := 5
|
|
dir := t.TempDir()
|
|
|
|
// Fill the wbl and corrupt it.
|
|
{
|
|
wal, err := wlog.New(nil, nil, filepath.Join(dir, "wal"), wlog.CompressionNone)
|
|
require.NoError(t, err)
|
|
wbl, err := wlog.New(nil, nil, filepath.Join(dir, "wbl"), wlog.CompressionNone)
|
|
require.NoError(t, err)
|
|
|
|
for i := 1; i <= totalRecs; i++ {
|
|
// At this point insert a corrupted record.
|
|
if i-1 == expRecs {
|
|
require.NoError(t, wbl.Log(corrFunc(rec)))
|
|
continue
|
|
}
|
|
require.NoError(t, wbl.Log(rec))
|
|
}
|
|
|
|
opts := DefaultHeadOptions()
|
|
opts.ChunkRange = 1
|
|
opts.ChunkDirRoot = wal.Dir()
|
|
opts.OutOfOrderCapMax.Store(30)
|
|
opts.OutOfOrderTimeWindow.Store(1000 * time.Minute.Milliseconds())
|
|
h, err := NewHead(nil, nil, wal, wbl, opts, nil)
|
|
require.NoError(t, err)
|
|
require.Equal(t, 0.0, prom_testutil.ToFloat64(h.metrics.walCorruptionsTotal))
|
|
initErr := h.Init(math.MinInt64)
|
|
|
|
var elb *errLoadWbl
|
|
require.ErrorAs(t, initErr, &elb) // Wbl errors are wrapped into errLoadWbl, make sure we can unwrap it.
|
|
|
|
var cerr *wlog.CorruptionErr
|
|
require.ErrorAs(t, initErr, &cerr, "reading the wal didn't return corruption error")
|
|
require.NoError(t, h.Close()) // Head will close the wal as well.
|
|
}
|
|
|
|
// Open the db to trigger a repair.
|
|
{
|
|
db, err := Open(dir, nil, nil, DefaultOptions(), nil)
|
|
require.NoError(t, err)
|
|
defer func() {
|
|
require.NoError(t, db.Close())
|
|
}()
|
|
require.Equal(t, 1.0, prom_testutil.ToFloat64(db.head.metrics.walCorruptionsTotal))
|
|
}
|
|
|
|
// Read the wbl content after the repair.
|
|
{
|
|
sr, err := wlog.NewSegmentsReader(filepath.Join(dir, "wbl"))
|
|
require.NoError(t, err)
|
|
defer sr.Close()
|
|
r := wlog.NewReader(sr)
|
|
|
|
var actRec int
|
|
for r.Next() {
|
|
actRec++
|
|
}
|
|
require.NoError(t, r.Err())
|
|
require.Equal(t, expRecs, actRec, "Wrong number of intact records")
|
|
}
|
|
}
|
|
|
|
func TestHeadReadWriterRepair(t *testing.T) {
|
|
dir := t.TempDir()
|
|
|
|
const chunkRange = 1000
|
|
|
|
walDir := filepath.Join(dir, "wal")
|
|
// Fill the chunk segments and corrupt it.
|
|
{
|
|
w, err := wlog.New(nil, nil, walDir, wlog.CompressionNone)
|
|
require.NoError(t, err)
|
|
|
|
opts := DefaultHeadOptions()
|
|
opts.ChunkRange = chunkRange
|
|
opts.ChunkDirRoot = dir
|
|
opts.ChunkWriteQueueSize = 1 // We need to set this option so that we use the async queue. Upstream prometheus uses the queue directly.
|
|
h, err := NewHead(nil, nil, w, nil, opts, nil)
|
|
require.NoError(t, err)
|
|
require.Equal(t, 0.0, prom_testutil.ToFloat64(h.metrics.mmapChunkCorruptionTotal))
|
|
require.NoError(t, h.Init(math.MinInt64))
|
|
|
|
cOpts := chunkOpts{
|
|
chunkDiskMapper: h.chunkDiskMapper,
|
|
chunkRange: chunkRange,
|
|
samplesPerChunk: DefaultSamplesPerChunk,
|
|
}
|
|
|
|
s, created, _ := h.getOrCreate(1, labels.FromStrings("a", "1"))
|
|
require.True(t, created, "series was not created")
|
|
|
|
for i := 0; i < 7; i++ {
|
|
ok, chunkCreated := s.append(int64(i*chunkRange), float64(i*chunkRange), 0, cOpts)
|
|
require.True(t, ok, "series append failed")
|
|
require.True(t, chunkCreated, "chunk was not created")
|
|
ok, chunkCreated = s.append(int64(i*chunkRange)+chunkRange-1, float64(i*chunkRange), 0, cOpts)
|
|
require.True(t, ok, "series append failed")
|
|
require.False(t, chunkCreated, "chunk was created")
|
|
h.chunkDiskMapper.CutNewFile()
|
|
s.mmapChunks(h.chunkDiskMapper)
|
|
}
|
|
require.NoError(t, h.Close())
|
|
|
|
// Verify that there are 6 segment files.
|
|
// It should only be 6 because the last call to .CutNewFile() won't
|
|
// take effect without another chunk being written.
|
|
files, err := os.ReadDir(mmappedChunksDir(dir))
|
|
require.NoError(t, err)
|
|
require.Len(t, files, 6)
|
|
|
|
// Corrupt the 4th file by writing a random byte to series ref.
|
|
f, err := os.OpenFile(filepath.Join(mmappedChunksDir(dir), files[3].Name()), os.O_WRONLY, 0o666)
|
|
require.NoError(t, err)
|
|
n, err := f.WriteAt([]byte{67, 88}, chunks.HeadChunkFileHeaderSize+2)
|
|
require.NoError(t, err)
|
|
require.Equal(t, 2, n)
|
|
require.NoError(t, f.Close())
|
|
}
|
|
|
|
// Open the db to trigger a repair.
|
|
{
|
|
db, err := Open(dir, nil, nil, DefaultOptions(), nil)
|
|
require.NoError(t, err)
|
|
defer func() {
|
|
require.NoError(t, db.Close())
|
|
}()
|
|
require.Equal(t, 1.0, prom_testutil.ToFloat64(db.head.metrics.mmapChunkCorruptionTotal))
|
|
}
|
|
|
|
// Verify that there are 3 segment files after the repair.
|
|
// The segments from the corrupt segment should be removed.
|
|
{
|
|
files, err := os.ReadDir(mmappedChunksDir(dir))
|
|
require.NoError(t, err)
|
|
require.Len(t, files, 3)
|
|
}
|
|
}
|
|
|
|
func TestNewWalSegmentOnTruncate(t *testing.T) {
|
|
h, wal := newTestHead(t, 1000, wlog.CompressionNone, false)
|
|
defer func() {
|
|
require.NoError(t, h.Close())
|
|
}()
|
|
add := func(ts int64) {
|
|
app := h.Appender(context.Background())
|
|
_, err := app.Append(0, labels.FromStrings("a", "b"), ts, 0)
|
|
require.NoError(t, err)
|
|
require.NoError(t, app.Commit())
|
|
}
|
|
|
|
add(0)
|
|
_, last, err := wlog.Segments(wal.Dir())
|
|
require.NoError(t, err)
|
|
require.Equal(t, 0, last)
|
|
|
|
add(1)
|
|
require.NoError(t, h.Truncate(1))
|
|
_, last, err = wlog.Segments(wal.Dir())
|
|
require.NoError(t, err)
|
|
require.Equal(t, 1, last)
|
|
|
|
add(2)
|
|
require.NoError(t, h.Truncate(2))
|
|
_, last, err = wlog.Segments(wal.Dir())
|
|
require.NoError(t, err)
|
|
require.Equal(t, 2, last)
|
|
}
|
|
|
|
func TestAddDuplicateLabelName(t *testing.T) {
|
|
h, _ := newTestHead(t, 1000, wlog.CompressionNone, false)
|
|
defer func() {
|
|
require.NoError(t, h.Close())
|
|
}()
|
|
|
|
add := func(labels labels.Labels, labelName string) {
|
|
app := h.Appender(context.Background())
|
|
_, err := app.Append(0, labels, 0, 0)
|
|
require.Error(t, err)
|
|
require.Equal(t, fmt.Sprintf(`label name "%s" is not unique: invalid sample`, labelName), err.Error())
|
|
}
|
|
|
|
add(labels.FromStrings("a", "c", "a", "b"), "a")
|
|
add(labels.FromStrings("a", "c", "a", "c"), "a")
|
|
add(labels.FromStrings("__name__", "up", "job", "prometheus", "le", "500", "le", "400", "unit", "s"), "le")
|
|
}
|
|
|
|
func TestMemSeriesIsolation(t *testing.T) {
|
|
if defaultIsolationDisabled {
|
|
t.Skip("skipping test since tsdb isolation is disabled")
|
|
}
|
|
|
|
// Put a series, select it. GC it and then access it.
|
|
lastValue := func(h *Head, maxAppendID uint64) int {
|
|
idx, err := h.Index()
|
|
|
|
require.NoError(t, err)
|
|
|
|
iso := h.iso.State(math.MinInt64, math.MaxInt64)
|
|
iso.maxAppendID = maxAppendID
|
|
|
|
chunks, err := h.chunksRange(math.MinInt64, math.MaxInt64, iso)
|
|
require.NoError(t, err)
|
|
// Hm.. here direct block chunk querier might be required?
|
|
querier := blockQuerier{
|
|
blockBaseQuerier: &blockBaseQuerier{
|
|
index: idx,
|
|
chunks: chunks,
|
|
tombstones: tombstones.NewMemTombstones(),
|
|
|
|
mint: 0,
|
|
maxt: 10000,
|
|
},
|
|
}
|
|
|
|
require.NoError(t, err)
|
|
defer querier.Close()
|
|
|
|
ss := querier.Select(context.Background(), false, nil, labels.MustNewMatcher(labels.MatchEqual, "foo", "bar"))
|
|
_, seriesSet, ws, err := expandSeriesSet(ss)
|
|
require.NoError(t, err)
|
|
require.Empty(t, ws)
|
|
|
|
for _, series := range seriesSet {
|
|
return int(series[len(series)-1].f)
|
|
}
|
|
return -1
|
|
}
|
|
|
|
addSamples := func(h *Head) int {
|
|
i := 1
|
|
for ; i <= 1000; i++ {
|
|
var app storage.Appender
|
|
// To initialize bounds.
|
|
if h.MinTime() == math.MaxInt64 {
|
|
app = &initAppender{head: h}
|
|
} else {
|
|
a := h.appender()
|
|
a.cleanupAppendIDsBelow = 0
|
|
app = a
|
|
}
|
|
|
|
_, err := app.Append(0, labels.FromStrings("foo", "bar"), int64(i), float64(i))
|
|
require.NoError(t, err)
|
|
require.NoError(t, app.Commit())
|
|
h.mmapHeadChunks()
|
|
}
|
|
return i
|
|
}
|
|
|
|
testIsolation := func(h *Head, i int) {
|
|
}
|
|
|
|
// Test isolation without restart of Head.
|
|
hb, _ := newTestHead(t, 1000, wlog.CompressionNone, false)
|
|
i := addSamples(hb)
|
|
testIsolation(hb, i)
|
|
|
|
// Test simple cases in different chunks when no appendID cleanup has been performed.
|
|
require.Equal(t, 10, lastValue(hb, 10))
|
|
require.Equal(t, 130, lastValue(hb, 130))
|
|
require.Equal(t, 160, lastValue(hb, 160))
|
|
require.Equal(t, 240, lastValue(hb, 240))
|
|
require.Equal(t, 500, lastValue(hb, 500))
|
|
require.Equal(t, 750, lastValue(hb, 750))
|
|
require.Equal(t, 995, lastValue(hb, 995))
|
|
require.Equal(t, 999, lastValue(hb, 999))
|
|
|
|
// Cleanup appendIDs below 500.
|
|
app := hb.appender()
|
|
app.cleanupAppendIDsBelow = 500
|
|
_, err := app.Append(0, labels.FromStrings("foo", "bar"), int64(i), float64(i))
|
|
require.NoError(t, err)
|
|
require.NoError(t, app.Commit())
|
|
i++
|
|
|
|
// We should not get queries with a maxAppendID below 500 after the cleanup,
|
|
// but they only take the remaining appendIDs into account.
|
|
require.Equal(t, 499, lastValue(hb, 10))
|
|
require.Equal(t, 499, lastValue(hb, 130))
|
|
require.Equal(t, 499, lastValue(hb, 160))
|
|
require.Equal(t, 499, lastValue(hb, 240))
|
|
require.Equal(t, 500, lastValue(hb, 500))
|
|
require.Equal(t, 995, lastValue(hb, 995))
|
|
require.Equal(t, 999, lastValue(hb, 999))
|
|
|
|
// Cleanup appendIDs below 1000, which means the sample buffer is
|
|
// the only thing with appendIDs.
|
|
app = hb.appender()
|
|
app.cleanupAppendIDsBelow = 1000
|
|
_, err = app.Append(0, labels.FromStrings("foo", "bar"), int64(i), float64(i))
|
|
require.NoError(t, err)
|
|
require.NoError(t, app.Commit())
|
|
require.Equal(t, 999, lastValue(hb, 998))
|
|
require.Equal(t, 999, lastValue(hb, 999))
|
|
require.Equal(t, 1000, lastValue(hb, 1000))
|
|
require.Equal(t, 1001, lastValue(hb, 1001))
|
|
require.Equal(t, 1002, lastValue(hb, 1002))
|
|
require.Equal(t, 1002, lastValue(hb, 1003))
|
|
|
|
i++
|
|
// Cleanup appendIDs below 1001, but with a rollback.
|
|
app = hb.appender()
|
|
app.cleanupAppendIDsBelow = 1001
|
|
_, err = app.Append(0, labels.FromStrings("foo", "bar"), int64(i), float64(i))
|
|
require.NoError(t, err)
|
|
require.NoError(t, app.Rollback())
|
|
require.Equal(t, 1000, lastValue(hb, 999))
|
|
require.Equal(t, 1000, lastValue(hb, 1000))
|
|
require.Equal(t, 1001, lastValue(hb, 1001))
|
|
require.Equal(t, 1002, lastValue(hb, 1002))
|
|
require.Equal(t, 1002, lastValue(hb, 1003))
|
|
|
|
require.NoError(t, hb.Close())
|
|
|
|
// Test isolation with restart of Head. This is to verify the num samples of chunks after m-map chunk replay.
|
|
hb, w := newTestHead(t, 1000, wlog.CompressionNone, false)
|
|
i = addSamples(hb)
|
|
require.NoError(t, hb.Close())
|
|
|
|
wal, err := wlog.NewSize(nil, nil, w.Dir(), 32768, wlog.CompressionNone)
|
|
require.NoError(t, err)
|
|
opts := DefaultHeadOptions()
|
|
opts.ChunkRange = 1000
|
|
opts.ChunkDirRoot = wal.Dir()
|
|
hb, err = NewHead(nil, nil, wal, nil, opts, nil)
|
|
defer func() { require.NoError(t, hb.Close()) }()
|
|
require.NoError(t, err)
|
|
require.NoError(t, hb.Init(0))
|
|
|
|
// No appends after restarting. Hence all should return the last value.
|
|
require.Equal(t, 1000, lastValue(hb, 10))
|
|
require.Equal(t, 1000, lastValue(hb, 130))
|
|
require.Equal(t, 1000, lastValue(hb, 160))
|
|
require.Equal(t, 1000, lastValue(hb, 240))
|
|
require.Equal(t, 1000, lastValue(hb, 500))
|
|
|
|
// Cleanup appendIDs below 1000, which means the sample buffer is
|
|
// the only thing with appendIDs.
|
|
app = hb.appender()
|
|
_, err = app.Append(0, labels.FromStrings("foo", "bar"), int64(i), float64(i))
|
|
i++
|
|
require.NoError(t, err)
|
|
require.NoError(t, app.Commit())
|
|
require.Equal(t, 1001, lastValue(hb, 998))
|
|
require.Equal(t, 1001, lastValue(hb, 999))
|
|
require.Equal(t, 1001, lastValue(hb, 1000))
|
|
require.Equal(t, 1001, lastValue(hb, 1001))
|
|
require.Equal(t, 1001, lastValue(hb, 1002))
|
|
require.Equal(t, 1001, lastValue(hb, 1003))
|
|
|
|
// Cleanup appendIDs below 1002, but with a rollback.
|
|
app = hb.appender()
|
|
_, err = app.Append(0, labels.FromStrings("foo", "bar"), int64(i), float64(i))
|
|
require.NoError(t, err)
|
|
require.NoError(t, app.Rollback())
|
|
require.Equal(t, 1001, lastValue(hb, 999))
|
|
require.Equal(t, 1001, lastValue(hb, 1000))
|
|
require.Equal(t, 1001, lastValue(hb, 1001))
|
|
require.Equal(t, 1001, lastValue(hb, 1002))
|
|
require.Equal(t, 1001, lastValue(hb, 1003))
|
|
}
|
|
|
|
func TestIsolationRollback(t *testing.T) {
|
|
if defaultIsolationDisabled {
|
|
t.Skip("skipping test since tsdb isolation is disabled")
|
|
}
|
|
|
|
// Rollback after a failed append and test if the low watermark has progressed anyway.
|
|
hb, _ := newTestHead(t, 1000, wlog.CompressionNone, false)
|
|
defer func() {
|
|
require.NoError(t, hb.Close())
|
|
}()
|
|
|
|
app := hb.Appender(context.Background())
|
|
_, err := app.Append(0, labels.FromStrings("foo", "bar"), 0, 0)
|
|
require.NoError(t, err)
|
|
require.NoError(t, app.Commit())
|
|
require.Equal(t, uint64(1), hb.iso.lowWatermark())
|
|
|
|
app = hb.Appender(context.Background())
|
|
_, err = app.Append(0, labels.FromStrings("foo", "bar"), 1, 1)
|
|
require.NoError(t, err)
|
|
_, err = app.Append(0, labels.FromStrings("foo", "bar", "foo", "baz"), 2, 2)
|
|
require.Error(t, err)
|
|
require.NoError(t, app.Rollback())
|
|
require.Equal(t, uint64(2), hb.iso.lowWatermark())
|
|
|
|
app = hb.Appender(context.Background())
|
|
_, err = app.Append(0, labels.FromStrings("foo", "bar"), 3, 3)
|
|
require.NoError(t, err)
|
|
require.NoError(t, app.Commit())
|
|
require.Equal(t, uint64(3), hb.iso.lowWatermark(), "Low watermark should proceed to 3 even if append #2 was rolled back.")
|
|
}
|
|
|
|
func TestIsolationLowWatermarkMonotonous(t *testing.T) {
|
|
if defaultIsolationDisabled {
|
|
t.Skip("skipping test since tsdb isolation is disabled")
|
|
}
|
|
|
|
hb, _ := newTestHead(t, 1000, wlog.CompressionNone, false)
|
|
defer func() {
|
|
require.NoError(t, hb.Close())
|
|
}()
|
|
|
|
app1 := hb.Appender(context.Background())
|
|
_, err := app1.Append(0, labels.FromStrings("foo", "bar"), 0, 0)
|
|
require.NoError(t, err)
|
|
require.NoError(t, app1.Commit())
|
|
require.Equal(t, uint64(1), hb.iso.lowWatermark(), "Low watermark should by 1 after 1st append.")
|
|
|
|
app1 = hb.Appender(context.Background())
|
|
_, err = app1.Append(0, labels.FromStrings("foo", "bar"), 1, 1)
|
|
require.NoError(t, err)
|
|
require.Equal(t, uint64(2), hb.iso.lowWatermark(), "Low watermark should be two, even if append is not committed yet.")
|
|
|
|
app2 := hb.Appender(context.Background())
|
|
_, err = app2.Append(0, labels.FromStrings("foo", "baz"), 1, 1)
|
|
require.NoError(t, err)
|
|
require.NoError(t, app2.Commit())
|
|
require.Equal(t, uint64(2), hb.iso.lowWatermark(), "Low watermark should stay two because app1 is not committed yet.")
|
|
|
|
is := hb.iso.State(math.MinInt64, math.MaxInt64)
|
|
require.Equal(t, uint64(2), hb.iso.lowWatermark(), "After simulated read (iso state retrieved), low watermark should stay at 2.")
|
|
|
|
require.NoError(t, app1.Commit())
|
|
require.Equal(t, uint64(2), hb.iso.lowWatermark(), "Even after app1 is committed, low watermark should stay at 2 because read is still ongoing.")
|
|
|
|
is.Close()
|
|
require.Equal(t, uint64(3), hb.iso.lowWatermark(), "After read has finished (iso state closed), low watermark should jump to three.")
|
|
}
|
|
|
|
func TestIsolationAppendIDZeroIsNoop(t *testing.T) {
|
|
if defaultIsolationDisabled {
|
|
t.Skip("skipping test since tsdb isolation is disabled")
|
|
}
|
|
|
|
h, _ := newTestHead(t, 1000, wlog.CompressionNone, false)
|
|
defer func() {
|
|
require.NoError(t, h.Close())
|
|
}()
|
|
|
|
h.initTime(0)
|
|
|
|
cOpts := chunkOpts{
|
|
chunkDiskMapper: h.chunkDiskMapper,
|
|
chunkRange: h.chunkRange.Load(),
|
|
samplesPerChunk: DefaultSamplesPerChunk,
|
|
}
|
|
|
|
s, _, _ := h.getOrCreate(1, labels.FromStrings("a", "1"))
|
|
|
|
ok, _ := s.append(0, 0, 0, cOpts)
|
|
require.True(t, ok, "Series append failed.")
|
|
require.Equal(t, 0, s.txs.txIDCount, "Series should not have an appendID after append with appendID=0.")
|
|
}
|
|
|
|
func TestHeadSeriesChunkRace(t *testing.T) {
|
|
for i := 0; i < 1000; i++ {
|
|
testHeadSeriesChunkRace(t)
|
|
}
|
|
}
|
|
|
|
func TestIsolationWithoutAdd(t *testing.T) {
|
|
if defaultIsolationDisabled {
|
|
t.Skip("skipping test since tsdb isolation is disabled")
|
|
}
|
|
|
|
hb, _ := newTestHead(t, 1000, wlog.CompressionNone, false)
|
|
defer func() {
|
|
require.NoError(t, hb.Close())
|
|
}()
|
|
|
|
app := hb.Appender(context.Background())
|
|
require.NoError(t, app.Commit())
|
|
|
|
app = hb.Appender(context.Background())
|
|
_, err := app.Append(0, labels.FromStrings("foo", "baz"), 1, 1)
|
|
require.NoError(t, err)
|
|
require.NoError(t, app.Commit())
|
|
|
|
require.Equal(t, hb.iso.lastAppendID(), hb.iso.lowWatermark(), "High watermark should be equal to the low watermark")
|
|
}
|
|
|
|
func TestOutOfOrderSamplesMetric(t *testing.T) {
|
|
dir := t.TempDir()
|
|
|
|
db, err := Open(dir, nil, nil, DefaultOptions(), nil)
|
|
require.NoError(t, err)
|
|
defer func() {
|
|
require.NoError(t, db.Close())
|
|
}()
|
|
db.DisableCompactions()
|
|
|
|
ctx := context.Background()
|
|
app := db.Appender(ctx)
|
|
for i := 1; i <= 5; i++ {
|
|
_, err = app.Append(0, labels.FromStrings("a", "b"), int64(i), 99)
|
|
require.NoError(t, err)
|
|
}
|
|
require.NoError(t, app.Commit())
|
|
|
|
// Test out of order metric.
|
|
require.Equal(t, 0.0, prom_testutil.ToFloat64(db.head.metrics.outOfOrderSamples.WithLabelValues(sampleMetricTypeFloat)))
|
|
app = db.Appender(ctx)
|
|
_, err = app.Append(0, labels.FromStrings("a", "b"), 2, 99)
|
|
require.Equal(t, storage.ErrOutOfOrderSample, err)
|
|
require.Equal(t, 1.0, prom_testutil.ToFloat64(db.head.metrics.outOfOrderSamples.WithLabelValues(sampleMetricTypeFloat)))
|
|
|
|
_, err = app.Append(0, labels.FromStrings("a", "b"), 3, 99)
|
|
require.Equal(t, storage.ErrOutOfOrderSample, err)
|
|
require.Equal(t, 2.0, prom_testutil.ToFloat64(db.head.metrics.outOfOrderSamples.WithLabelValues(sampleMetricTypeFloat)))
|
|
|
|
_, err = app.Append(0, labels.FromStrings("a", "b"), 4, 99)
|
|
require.Equal(t, storage.ErrOutOfOrderSample, err)
|
|
require.Equal(t, 3.0, prom_testutil.ToFloat64(db.head.metrics.outOfOrderSamples.WithLabelValues(sampleMetricTypeFloat)))
|
|
require.NoError(t, app.Commit())
|
|
|
|
// Compact Head to test out of bound metric.
|
|
app = db.Appender(ctx)
|
|
_, err = app.Append(0, labels.FromStrings("a", "b"), DefaultBlockDuration*2, 99)
|
|
require.NoError(t, err)
|
|
require.NoError(t, app.Commit())
|
|
|
|
require.Equal(t, int64(math.MinInt64), db.head.minValidTime.Load())
|
|
require.NoError(t, db.Compact(ctx))
|
|
require.Greater(t, db.head.minValidTime.Load(), int64(0))
|
|
|
|
app = db.Appender(ctx)
|
|
_, err = app.Append(0, labels.FromStrings("a", "b"), db.head.minValidTime.Load()-2, 99)
|
|
require.Equal(t, storage.ErrOutOfBounds, err)
|
|
require.Equal(t, 1.0, prom_testutil.ToFloat64(db.head.metrics.outOfBoundSamples.WithLabelValues(sampleMetricTypeFloat)))
|
|
|
|
_, err = app.Append(0, labels.FromStrings("a", "b"), db.head.minValidTime.Load()-1, 99)
|
|
require.Equal(t, storage.ErrOutOfBounds, err)
|
|
require.Equal(t, 2.0, prom_testutil.ToFloat64(db.head.metrics.outOfBoundSamples.WithLabelValues(sampleMetricTypeFloat)))
|
|
require.NoError(t, app.Commit())
|
|
|
|
// Some more valid samples for out of order.
|
|
app = db.Appender(ctx)
|
|
for i := 1; i <= 5; i++ {
|
|
_, err = app.Append(0, labels.FromStrings("a", "b"), db.head.minValidTime.Load()+DefaultBlockDuration+int64(i), 99)
|
|
require.NoError(t, err)
|
|
}
|
|
require.NoError(t, app.Commit())
|
|
|
|
// Test out of order metric.
|
|
app = db.Appender(ctx)
|
|
_, err = app.Append(0, labels.FromStrings("a", "b"), db.head.minValidTime.Load()+DefaultBlockDuration+2, 99)
|
|
require.Equal(t, storage.ErrOutOfOrderSample, err)
|
|
require.Equal(t, 4.0, prom_testutil.ToFloat64(db.head.metrics.outOfOrderSamples.WithLabelValues(sampleMetricTypeFloat)))
|
|
|
|
_, err = app.Append(0, labels.FromStrings("a", "b"), db.head.minValidTime.Load()+DefaultBlockDuration+3, 99)
|
|
require.Equal(t, storage.ErrOutOfOrderSample, err)
|
|
require.Equal(t, 5.0, prom_testutil.ToFloat64(db.head.metrics.outOfOrderSamples.WithLabelValues(sampleMetricTypeFloat)))
|
|
|
|
_, err = app.Append(0, labels.FromStrings("a", "b"), db.head.minValidTime.Load()+DefaultBlockDuration+4, 99)
|
|
require.Equal(t, storage.ErrOutOfOrderSample, err)
|
|
require.Equal(t, 6.0, prom_testutil.ToFloat64(db.head.metrics.outOfOrderSamples.WithLabelValues(sampleMetricTypeFloat)))
|
|
require.NoError(t, app.Commit())
|
|
}
|
|
|
|
func testHeadSeriesChunkRace(t *testing.T) {
|
|
h, _ := newTestHead(t, 1000, wlog.CompressionNone, false)
|
|
defer func() {
|
|
require.NoError(t, h.Close())
|
|
}()
|
|
require.NoError(t, h.Init(0))
|
|
app := h.Appender(context.Background())
|
|
|
|
s2, err := app.Append(0, labels.FromStrings("foo2", "bar"), 5, 0)
|
|
require.NoError(t, err)
|
|
for ts := int64(6); ts < 11; ts++ {
|
|
_, err = app.Append(s2, labels.EmptyLabels(), ts, 0)
|
|
require.NoError(t, err)
|
|
}
|
|
require.NoError(t, app.Commit())
|
|
|
|
var wg sync.WaitGroup
|
|
matcher := labels.MustNewMatcher(labels.MatchEqual, "", "")
|
|
q, err := NewBlockQuerier(h, 18, 22)
|
|
require.NoError(t, err)
|
|
defer q.Close()
|
|
|
|
wg.Add(1)
|
|
go func() {
|
|
h.updateMinMaxTime(20, 25)
|
|
h.gc()
|
|
wg.Done()
|
|
}()
|
|
ss := q.Select(context.Background(), false, nil, matcher)
|
|
for ss.Next() {
|
|
}
|
|
require.NoError(t, ss.Err())
|
|
wg.Wait()
|
|
}
|
|
|
|
func TestHeadLabelNamesValuesWithMinMaxRange(t *testing.T) {
|
|
head, _ := newTestHead(t, 1000, wlog.CompressionNone, false)
|
|
defer func() {
|
|
require.NoError(t, head.Close())
|
|
}()
|
|
|
|
const (
|
|
firstSeriesTimestamp int64 = 100
|
|
secondSeriesTimestamp int64 = 200
|
|
lastSeriesTimestamp int64 = 300
|
|
)
|
|
var (
|
|
seriesTimestamps = []int64{
|
|
firstSeriesTimestamp,
|
|
secondSeriesTimestamp,
|
|
lastSeriesTimestamp,
|
|
}
|
|
expectedLabelNames = []string{"a", "b", "c"}
|
|
expectedLabelValues = []string{"d", "e", "f"}
|
|
ctx = context.Background()
|
|
)
|
|
|
|
app := head.Appender(ctx)
|
|
for i, name := range expectedLabelNames {
|
|
_, err := app.Append(0, labels.FromStrings(name, expectedLabelValues[i]), seriesTimestamps[i], 0)
|
|
require.NoError(t, err)
|
|
}
|
|
require.NoError(t, app.Commit())
|
|
require.Equal(t, firstSeriesTimestamp, head.MinTime())
|
|
require.Equal(t, lastSeriesTimestamp, head.MaxTime())
|
|
|
|
testCases := []struct {
|
|
name string
|
|
mint int64
|
|
maxt int64
|
|
expectedNames []string
|
|
expectedValues []string
|
|
}{
|
|
{"maxt less than head min", head.MaxTime() - 10, head.MinTime() - 10, []string{}, []string{}},
|
|
{"mint less than head max", head.MaxTime() + 10, head.MinTime() + 10, []string{}, []string{}},
|
|
{"mint and maxt outside head", head.MaxTime() + 10, head.MinTime() - 10, []string{}, []string{}},
|
|
{"mint and maxt within head", head.MaxTime() - 10, head.MinTime() + 10, expectedLabelNames, expectedLabelValues},
|
|
}
|
|
|
|
for _, tt := range testCases {
|
|
t.Run(tt.name, func(t *testing.T) {
|
|
headIdxReader := head.indexRange(tt.mint, tt.maxt)
|
|
actualLabelNames, err := headIdxReader.LabelNames(ctx)
|
|
require.NoError(t, err)
|
|
require.Equal(t, tt.expectedNames, actualLabelNames)
|
|
if len(tt.expectedValues) > 0 {
|
|
for i, name := range expectedLabelNames {
|
|
actualLabelValue, err := headIdxReader.SortedLabelValues(ctx, name)
|
|
require.NoError(t, err)
|
|
require.Equal(t, []string{tt.expectedValues[i]}, actualLabelValue)
|
|
}
|
|
}
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestHeadLabelValuesWithMatchers(t *testing.T) {
|
|
head, _ := newTestHead(t, 1000, wlog.CompressionNone, false)
|
|
t.Cleanup(func() { require.NoError(t, head.Close()) })
|
|
|
|
ctx := context.Background()
|
|
|
|
app := head.Appender(context.Background())
|
|
for i := 0; i < 100; i++ {
|
|
_, err := app.Append(0, labels.FromStrings(
|
|
"tens", fmt.Sprintf("value%d", i/10),
|
|
"unique", fmt.Sprintf("value%d", i),
|
|
), 100, 0)
|
|
require.NoError(t, err)
|
|
}
|
|
require.NoError(t, app.Commit())
|
|
|
|
testCases := []struct {
|
|
name string
|
|
labelName string
|
|
matchers []*labels.Matcher
|
|
expectedValues []string
|
|
}{
|
|
{
|
|
name: "get tens based on unique id",
|
|
labelName: "tens",
|
|
matchers: []*labels.Matcher{labels.MustNewMatcher(labels.MatchEqual, "unique", "value35")},
|
|
expectedValues: []string{"value3"},
|
|
}, {
|
|
name: "get unique ids based on a ten",
|
|
labelName: "unique",
|
|
matchers: []*labels.Matcher{labels.MustNewMatcher(labels.MatchEqual, "tens", "value1")},
|
|
expectedValues: []string{"value10", "value11", "value12", "value13", "value14", "value15", "value16", "value17", "value18", "value19"},
|
|
}, {
|
|
name: "get tens by pattern matching on unique id",
|
|
labelName: "tens",
|
|
matchers: []*labels.Matcher{labels.MustNewMatcher(labels.MatchRegexp, "unique", "value[5-7]5")},
|
|
expectedValues: []string{"value5", "value6", "value7"},
|
|
}, {
|
|
name: "get tens by matching for absence of unique label",
|
|
labelName: "tens",
|
|
matchers: []*labels.Matcher{labels.MustNewMatcher(labels.MatchNotEqual, "unique", "")},
|
|
expectedValues: []string{"value0", "value1", "value2", "value3", "value4", "value5", "value6", "value7", "value8", "value9"},
|
|
},
|
|
}
|
|
|
|
for _, tt := range testCases {
|
|
t.Run(tt.name, func(t *testing.T) {
|
|
headIdxReader := head.indexRange(0, 200)
|
|
|
|
actualValues, err := headIdxReader.SortedLabelValues(ctx, tt.labelName, tt.matchers...)
|
|
require.NoError(t, err)
|
|
require.Equal(t, tt.expectedValues, actualValues)
|
|
|
|
actualValues, err = headIdxReader.LabelValues(ctx, tt.labelName, tt.matchers...)
|
|
sort.Strings(actualValues)
|
|
require.NoError(t, err)
|
|
require.Equal(t, tt.expectedValues, actualValues)
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestHeadLabelNamesWithMatchers(t *testing.T) {
|
|
head, _ := newTestHead(t, 1000, wlog.CompressionNone, false)
|
|
defer func() {
|
|
require.NoError(t, head.Close())
|
|
}()
|
|
|
|
app := head.Appender(context.Background())
|
|
for i := 0; i < 100; i++ {
|
|
_, err := app.Append(0, labels.FromStrings(
|
|
"unique", fmt.Sprintf("value%d", i),
|
|
), 100, 0)
|
|
require.NoError(t, err)
|
|
|
|
if i%10 == 0 {
|
|
_, err := app.Append(0, labels.FromStrings(
|
|
"tens", fmt.Sprintf("value%d", i/10),
|
|
"unique", fmt.Sprintf("value%d", i),
|
|
), 100, 0)
|
|
require.NoError(t, err)
|
|
}
|
|
|
|
if i%20 == 0 {
|
|
_, err := app.Append(0, labels.FromStrings(
|
|
"tens", fmt.Sprintf("value%d", i/10),
|
|
"twenties", fmt.Sprintf("value%d", i/20),
|
|
"unique", fmt.Sprintf("value%d", i),
|
|
), 100, 0)
|
|
require.NoError(t, err)
|
|
}
|
|
}
|
|
require.NoError(t, app.Commit())
|
|
|
|
testCases := []struct {
|
|
name string
|
|
labelName string
|
|
matchers []*labels.Matcher
|
|
expectedNames []string
|
|
}{
|
|
{
|
|
name: "get with non-empty unique: all",
|
|
matchers: []*labels.Matcher{labels.MustNewMatcher(labels.MatchNotEqual, "unique", "")},
|
|
expectedNames: []string{"tens", "twenties", "unique"},
|
|
}, {
|
|
name: "get with unique ending in 1: only unique",
|
|
matchers: []*labels.Matcher{labels.MustNewMatcher(labels.MatchRegexp, "unique", "value.*1")},
|
|
expectedNames: []string{"unique"},
|
|
}, {
|
|
name: "get with unique = value20: all",
|
|
matchers: []*labels.Matcher{labels.MustNewMatcher(labels.MatchEqual, "unique", "value20")},
|
|
expectedNames: []string{"tens", "twenties", "unique"},
|
|
}, {
|
|
name: "get tens = 1: unique & tens",
|
|
matchers: []*labels.Matcher{labels.MustNewMatcher(labels.MatchEqual, "tens", "value1")},
|
|
expectedNames: []string{"tens", "unique"},
|
|
},
|
|
}
|
|
|
|
for _, tt := range testCases {
|
|
t.Run(tt.name, func(t *testing.T) {
|
|
headIdxReader := head.indexRange(0, 200)
|
|
|
|
actualNames, err := headIdxReader.LabelNames(context.Background(), tt.matchers...)
|
|
require.NoError(t, err)
|
|
require.Equal(t, tt.expectedNames, actualNames)
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestErrReuseAppender(t *testing.T) {
|
|
head, _ := newTestHead(t, 1000, wlog.CompressionNone, false)
|
|
defer func() {
|
|
require.NoError(t, head.Close())
|
|
}()
|
|
|
|
app := head.Appender(context.Background())
|
|
_, err := app.Append(0, labels.FromStrings("test", "test"), 0, 0)
|
|
require.NoError(t, err)
|
|
require.NoError(t, app.Commit())
|
|
require.Error(t, app.Commit())
|
|
require.Error(t, app.Rollback())
|
|
|
|
app = head.Appender(context.Background())
|
|
_, err = app.Append(0, labels.FromStrings("test", "test"), 1, 0)
|
|
require.NoError(t, err)
|
|
require.NoError(t, app.Rollback())
|
|
require.Error(t, app.Rollback())
|
|
require.Error(t, app.Commit())
|
|
|
|
app = head.Appender(context.Background())
|
|
_, err = app.Append(0, labels.FromStrings("test", "test"), 2, 0)
|
|
require.NoError(t, err)
|
|
require.NoError(t, app.Commit())
|
|
require.Error(t, app.Rollback())
|
|
require.Error(t, app.Commit())
|
|
|
|
app = head.Appender(context.Background())
|
|
_, err = app.Append(0, labels.FromStrings("test", "test"), 3, 0)
|
|
require.NoError(t, err)
|
|
require.NoError(t, app.Rollback())
|
|
require.Error(t, app.Commit())
|
|
require.Error(t, app.Rollback())
|
|
}
|
|
|
|
func TestHeadMintAfterTruncation(t *testing.T) {
|
|
chunkRange := int64(2000)
|
|
head, _ := newTestHead(t, chunkRange, wlog.CompressionNone, false)
|
|
|
|
app := head.Appender(context.Background())
|
|
_, err := app.Append(0, labels.FromStrings("a", "b"), 100, 100)
|
|
require.NoError(t, err)
|
|
_, err = app.Append(0, labels.FromStrings("a", "b"), 4000, 200)
|
|
require.NoError(t, err)
|
|
_, err = app.Append(0, labels.FromStrings("a", "b"), 8000, 300)
|
|
require.NoError(t, err)
|
|
require.NoError(t, app.Commit())
|
|
|
|
// Truncating outside the appendable window and actual mint being outside
|
|
// appendable window should leave mint at the actual mint.
|
|
require.NoError(t, head.Truncate(3500))
|
|
require.Equal(t, int64(4000), head.MinTime())
|
|
require.Equal(t, int64(4000), head.minValidTime.Load())
|
|
|
|
// After truncation outside the appendable window if the actual min time
|
|
// is in the appendable window then we should leave mint at the start of appendable window.
|
|
require.NoError(t, head.Truncate(5000))
|
|
require.Equal(t, head.appendableMinValidTime(), head.MinTime())
|
|
require.Equal(t, head.appendableMinValidTime(), head.minValidTime.Load())
|
|
|
|
// If the truncation time is inside the appendable window, then the min time
|
|
// should be the truncation time.
|
|
require.NoError(t, head.Truncate(7500))
|
|
require.Equal(t, int64(7500), head.MinTime())
|
|
require.Equal(t, int64(7500), head.minValidTime.Load())
|
|
|
|
require.NoError(t, head.Close())
|
|
}
|
|
|
|
func TestHeadExemplars(t *testing.T) {
|
|
chunkRange := int64(2000)
|
|
head, _ := newTestHead(t, chunkRange, wlog.CompressionNone, false)
|
|
app := head.Appender(context.Background())
|
|
|
|
l := labels.FromStrings("traceId", "123")
|
|
// It is perfectly valid to add Exemplars before the current start time -
|
|
// histogram buckets that haven't been update in a while could still be
|
|
// exported exemplars from an hour ago.
|
|
ref, err := app.Append(0, labels.FromStrings("a", "b"), 100, 100)
|
|
require.NoError(t, err)
|
|
_, err = app.AppendExemplar(ref, l, exemplar.Exemplar{
|
|
Labels: l,
|
|
HasTs: true,
|
|
Ts: -1000,
|
|
Value: 1,
|
|
})
|
|
require.NoError(t, err)
|
|
require.NoError(t, app.Commit())
|
|
require.NoError(t, head.Close())
|
|
}
|
|
|
|
func BenchmarkHeadLabelValuesWithMatchers(b *testing.B) {
|
|
chunkRange := int64(2000)
|
|
head, _ := newTestHead(b, chunkRange, wlog.CompressionNone, false)
|
|
b.Cleanup(func() { require.NoError(b, head.Close()) })
|
|
|
|
ctx := context.Background()
|
|
|
|
app := head.Appender(context.Background())
|
|
|
|
metricCount := 1000000
|
|
for i := 0; i < metricCount; i++ {
|
|
_, err := app.Append(0, labels.FromStrings(
|
|
"a_unique", fmt.Sprintf("value%d", i),
|
|
"b_tens", fmt.Sprintf("value%d", i/(metricCount/10)),
|
|
"c_ninety", fmt.Sprintf("value%d", i/(metricCount/10)/9), // "0" for the first 90%, then "1"
|
|
), 100, 0)
|
|
require.NoError(b, err)
|
|
}
|
|
require.NoError(b, app.Commit())
|
|
|
|
headIdxReader := head.indexRange(0, 200)
|
|
matchers := []*labels.Matcher{labels.MustNewMatcher(labels.MatchEqual, "c_ninety", "value0")}
|
|
|
|
b.ResetTimer()
|
|
b.ReportAllocs()
|
|
|
|
for benchIdx := 0; benchIdx < b.N; benchIdx++ {
|
|
actualValues, err := headIdxReader.LabelValues(ctx, "b_tens", matchers...)
|
|
require.NoError(b, err)
|
|
require.Len(b, actualValues, 9)
|
|
}
|
|
}
|
|
|
|
func TestIteratorSeekIntoBuffer(t *testing.T) {
|
|
dir := t.TempDir()
|
|
// This is usually taken from the Head, but passing manually here.
|
|
chunkDiskMapper, err := chunks.NewChunkDiskMapper(nil, dir, chunkenc.NewPool(), chunks.DefaultWriteBufferSize, chunks.DefaultWriteQueueSize)
|
|
require.NoError(t, err)
|
|
defer func() {
|
|
require.NoError(t, chunkDiskMapper.Close())
|
|
}()
|
|
cOpts := chunkOpts{
|
|
chunkDiskMapper: chunkDiskMapper,
|
|
chunkRange: 500,
|
|
samplesPerChunk: DefaultSamplesPerChunk,
|
|
}
|
|
|
|
s := newMemSeries(labels.Labels{}, 1, defaultIsolationDisabled)
|
|
|
|
for i := 0; i < 7; i++ {
|
|
ok, _ := s.append(int64(i), float64(i), 0, cOpts)
|
|
require.True(t, ok, "sample append failed")
|
|
}
|
|
|
|
c, _, _, err := s.chunk(0, chunkDiskMapper, &sync.Pool{
|
|
New: func() interface{} {
|
|
return &memChunk{}
|
|
},
|
|
})
|
|
require.NoError(t, err)
|
|
it := c.chunk.Iterator(nil)
|
|
|
|
// First point.
|
|
require.Equal(t, chunkenc.ValFloat, it.Seek(0))
|
|
ts, val := it.At()
|
|
require.Equal(t, int64(0), ts)
|
|
require.Equal(t, float64(0), val)
|
|
|
|
// Advance one point.
|
|
require.Equal(t, chunkenc.ValFloat, it.Next())
|
|
ts, val = it.At()
|
|
require.Equal(t, int64(1), ts)
|
|
require.Equal(t, float64(1), val)
|
|
|
|
// Seeking an older timestamp shouldn't cause the iterator to go backwards.
|
|
require.Equal(t, chunkenc.ValFloat, it.Seek(0))
|
|
ts, val = it.At()
|
|
require.Equal(t, int64(1), ts)
|
|
require.Equal(t, float64(1), val)
|
|
|
|
// Seek into the buffer.
|
|
require.Equal(t, chunkenc.ValFloat, it.Seek(3))
|
|
ts, val = it.At()
|
|
require.Equal(t, int64(3), ts)
|
|
require.Equal(t, float64(3), val)
|
|
|
|
// Iterate through the rest of the buffer.
|
|
for i := 4; i < 7; i++ {
|
|
require.Equal(t, chunkenc.ValFloat, it.Next())
|
|
ts, val = it.At()
|
|
require.Equal(t, int64(i), ts)
|
|
require.Equal(t, float64(i), val)
|
|
}
|
|
|
|
// Run out of elements in the iterator.
|
|
require.Equal(t, chunkenc.ValNone, it.Next())
|
|
require.Equal(t, chunkenc.ValNone, it.Seek(7))
|
|
}
|
|
|
|
// Tests https://github.com/prometheus/prometheus/issues/8221.
|
|
func TestChunkNotFoundHeadGCRace(t *testing.T) {
|
|
db := newTestDB(t)
|
|
db.DisableCompactions()
|
|
ctx := context.Background()
|
|
|
|
var (
|
|
app = db.Appender(context.Background())
|
|
ref = storage.SeriesRef(0)
|
|
mint, maxt = int64(0), int64(0)
|
|
err error
|
|
)
|
|
|
|
// Appends samples to span over 1.5 block ranges.
|
|
// 7 chunks with 15s scrape interval.
|
|
for i := int64(0); i <= 120*7; i++ {
|
|
ts := i * DefaultBlockDuration / (4 * 120)
|
|
ref, err = app.Append(ref, labels.FromStrings("a", "b"), ts, float64(i))
|
|
require.NoError(t, err)
|
|
maxt = ts
|
|
}
|
|
require.NoError(t, app.Commit())
|
|
|
|
// Get a querier before compaction (or when compaction is about to begin).
|
|
q, err := db.Querier(mint, maxt)
|
|
require.NoError(t, err)
|
|
|
|
// Query the compacted range and get the first series before compaction.
|
|
ss := q.Select(context.Background(), true, nil, labels.MustNewMatcher(labels.MatchEqual, "a", "b"))
|
|
require.True(t, ss.Next())
|
|
s := ss.At()
|
|
|
|
var wg sync.WaitGroup
|
|
wg.Add(1)
|
|
go func() {
|
|
defer wg.Done()
|
|
// Compacting head while the querier spans the compaction time.
|
|
require.NoError(t, db.Compact(ctx))
|
|
require.NotEmpty(t, db.Blocks())
|
|
}()
|
|
|
|
// Give enough time for compaction to finish.
|
|
// We expect it to be blocked until querier is closed.
|
|
<-time.After(3 * time.Second)
|
|
|
|
// Now consume after compaction when it's gone.
|
|
it := s.Iterator(nil)
|
|
for it.Next() == chunkenc.ValFloat {
|
|
_, _ = it.At()
|
|
}
|
|
// It should error here without any fix for the mentioned issue.
|
|
require.NoError(t, it.Err())
|
|
for ss.Next() {
|
|
s = ss.At()
|
|
it = s.Iterator(it)
|
|
for it.Next() == chunkenc.ValFloat {
|
|
_, _ = it.At()
|
|
}
|
|
require.NoError(t, it.Err())
|
|
}
|
|
require.NoError(t, ss.Err())
|
|
|
|
require.NoError(t, q.Close())
|
|
wg.Wait()
|
|
}
|
|
|
|
// Tests https://github.com/prometheus/prometheus/issues/9079.
|
|
func TestDataMissingOnQueryDuringCompaction(t *testing.T) {
|
|
db := newTestDB(t)
|
|
db.DisableCompactions()
|
|
ctx := context.Background()
|
|
|
|
var (
|
|
app = db.Appender(context.Background())
|
|
ref = storage.SeriesRef(0)
|
|
mint, maxt = int64(0), int64(0)
|
|
err error
|
|
)
|
|
|
|
// Appends samples to span over 1.5 block ranges.
|
|
expSamples := make([]chunks.Sample, 0)
|
|
// 7 chunks with 15s scrape interval.
|
|
for i := int64(0); i <= 120*7; i++ {
|
|
ts := i * DefaultBlockDuration / (4 * 120)
|
|
ref, err = app.Append(ref, labels.FromStrings("a", "b"), ts, float64(i))
|
|
require.NoError(t, err)
|
|
maxt = ts
|
|
expSamples = append(expSamples, sample{ts, float64(i), nil, nil})
|
|
}
|
|
require.NoError(t, app.Commit())
|
|
|
|
// Get a querier before compaction (or when compaction is about to begin).
|
|
q, err := db.Querier(mint, maxt)
|
|
require.NoError(t, err)
|
|
|
|
var wg sync.WaitGroup
|
|
wg.Add(1)
|
|
go func() {
|
|
defer wg.Done()
|
|
// Compacting head while the querier spans the compaction time.
|
|
require.NoError(t, db.Compact(ctx))
|
|
require.NotEmpty(t, db.Blocks())
|
|
}()
|
|
|
|
// Give enough time for compaction to finish.
|
|
// We expect it to be blocked until querier is closed.
|
|
<-time.After(3 * time.Second)
|
|
|
|
// Querying the querier that was got before compaction.
|
|
series := query(t, q, labels.MustNewMatcher(labels.MatchEqual, "a", "b"))
|
|
require.Equal(t, map[string][]chunks.Sample{`{a="b"}`: expSamples}, series)
|
|
|
|
wg.Wait()
|
|
}
|
|
|
|
func TestIsQuerierCollidingWithTruncation(t *testing.T) {
|
|
db := newTestDB(t)
|
|
db.DisableCompactions()
|
|
|
|
var (
|
|
app = db.Appender(context.Background())
|
|
ref = storage.SeriesRef(0)
|
|
err error
|
|
)
|
|
|
|
for i := int64(0); i <= 3000; i++ {
|
|
ref, err = app.Append(ref, labels.FromStrings("a", "b"), i, float64(i))
|
|
require.NoError(t, err)
|
|
}
|
|
require.NoError(t, app.Commit())
|
|
|
|
// This mocks truncation.
|
|
db.head.memTruncationInProcess.Store(true)
|
|
db.head.lastMemoryTruncationTime.Store(2000)
|
|
|
|
// Test that IsQuerierValid suggests correct querier ranges.
|
|
cases := []struct {
|
|
mint, maxt int64 // For the querier.
|
|
expShouldClose, expGetNew bool
|
|
expNewMint int64
|
|
}{
|
|
{-200, -100, true, false, 0},
|
|
{-200, 300, true, false, 0},
|
|
{100, 1900, true, false, 0},
|
|
{1900, 2200, true, true, 2000},
|
|
{2000, 2500, false, false, 0},
|
|
}
|
|
|
|
for _, c := range cases {
|
|
t.Run(fmt.Sprintf("mint=%d,maxt=%d", c.mint, c.maxt), func(t *testing.T) {
|
|
shouldClose, getNew, newMint := db.head.IsQuerierCollidingWithTruncation(c.mint, c.maxt)
|
|
require.Equal(t, c.expShouldClose, shouldClose)
|
|
require.Equal(t, c.expGetNew, getNew)
|
|
if getNew {
|
|
require.Equal(t, c.expNewMint, newMint)
|
|
}
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestWaitForPendingReadersInTimeRange(t *testing.T) {
|
|
db := newTestDB(t)
|
|
db.DisableCompactions()
|
|
|
|
sampleTs := func(i int64) int64 { return i * DefaultBlockDuration / (4 * 120) }
|
|
|
|
var (
|
|
app = db.Appender(context.Background())
|
|
ref = storage.SeriesRef(0)
|
|
err error
|
|
)
|
|
|
|
for i := int64(0); i <= 3000; i++ {
|
|
ts := sampleTs(i)
|
|
ref, err = app.Append(ref, labels.FromStrings("a", "b"), ts, float64(i))
|
|
require.NoError(t, err)
|
|
}
|
|
require.NoError(t, app.Commit())
|
|
|
|
truncMint, truncMaxt := int64(1000), int64(2000)
|
|
cases := []struct {
|
|
mint, maxt int64
|
|
shouldWait bool
|
|
}{
|
|
{0, 500, false}, // Before truncation range.
|
|
{500, 1500, true}, // Overlaps with truncation at the start.
|
|
{1200, 1700, true}, // Within truncation range.
|
|
{1800, 2500, true}, // Overlaps with truncation at the end.
|
|
{2000, 2500, false}, // After truncation range.
|
|
{2100, 2500, false}, // After truncation range.
|
|
}
|
|
for _, c := range cases {
|
|
t.Run(fmt.Sprintf("mint=%d,maxt=%d,shouldWait=%t", c.mint, c.maxt, c.shouldWait), func(t *testing.T) {
|
|
checkWaiting := func(cl io.Closer) {
|
|
var waitOver atomic.Bool
|
|
go func() {
|
|
db.head.WaitForPendingReadersInTimeRange(truncMint, truncMaxt)
|
|
waitOver.Store(true)
|
|
}()
|
|
<-time.After(550 * time.Millisecond)
|
|
require.Equal(t, !c.shouldWait, waitOver.Load())
|
|
require.NoError(t, cl.Close())
|
|
<-time.After(550 * time.Millisecond)
|
|
require.True(t, waitOver.Load())
|
|
}
|
|
|
|
q, err := db.Querier(c.mint, c.maxt)
|
|
require.NoError(t, err)
|
|
checkWaiting(q)
|
|
|
|
cq, err := db.ChunkQuerier(c.mint, c.maxt)
|
|
require.NoError(t, err)
|
|
checkWaiting(cq)
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestAppendHistogram(t *testing.T) {
|
|
l := labels.FromStrings("a", "b")
|
|
for _, numHistograms := range []int{1, 10, 150, 200, 250, 300} {
|
|
t.Run(fmt.Sprintf("%d", numHistograms), func(t *testing.T) {
|
|
head, _ := newTestHead(t, 1000, wlog.CompressionNone, false)
|
|
t.Cleanup(func() {
|
|
require.NoError(t, head.Close())
|
|
})
|
|
|
|
require.NoError(t, head.Init(0))
|
|
ingestTs := int64(0)
|
|
app := head.Appender(context.Background())
|
|
|
|
expHistograms := make([]chunks.Sample, 0, 2*numHistograms)
|
|
|
|
// Counter integer histograms.
|
|
for _, h := range tsdbutil.GenerateTestHistograms(numHistograms) {
|
|
_, err := app.AppendHistogram(0, l, ingestTs, h, nil)
|
|
require.NoError(t, err)
|
|
expHistograms = append(expHistograms, sample{t: ingestTs, h: h})
|
|
ingestTs++
|
|
if ingestTs%50 == 0 {
|
|
require.NoError(t, app.Commit())
|
|
app = head.Appender(context.Background())
|
|
}
|
|
}
|
|
|
|
// Gauge integer histograms.
|
|
for _, h := range tsdbutil.GenerateTestGaugeHistograms(numHistograms) {
|
|
_, err := app.AppendHistogram(0, l, ingestTs, h, nil)
|
|
require.NoError(t, err)
|
|
expHistograms = append(expHistograms, sample{t: ingestTs, h: h})
|
|
ingestTs++
|
|
if ingestTs%50 == 0 {
|
|
require.NoError(t, app.Commit())
|
|
app = head.Appender(context.Background())
|
|
}
|
|
}
|
|
|
|
expFloatHistograms := make([]chunks.Sample, 0, 2*numHistograms)
|
|
|
|
// Counter float histograms.
|
|
for _, fh := range tsdbutil.GenerateTestFloatHistograms(numHistograms) {
|
|
_, err := app.AppendHistogram(0, l, ingestTs, nil, fh)
|
|
require.NoError(t, err)
|
|
expFloatHistograms = append(expFloatHistograms, sample{t: ingestTs, fh: fh})
|
|
ingestTs++
|
|
if ingestTs%50 == 0 {
|
|
require.NoError(t, app.Commit())
|
|
app = head.Appender(context.Background())
|
|
}
|
|
}
|
|
|
|
// Gauge float histograms.
|
|
for _, fh := range tsdbutil.GenerateTestGaugeFloatHistograms(numHistograms) {
|
|
_, err := app.AppendHistogram(0, l, ingestTs, nil, fh)
|
|
require.NoError(t, err)
|
|
expFloatHistograms = append(expFloatHistograms, sample{t: ingestTs, fh: fh})
|
|
ingestTs++
|
|
if ingestTs%50 == 0 {
|
|
require.NoError(t, app.Commit())
|
|
app = head.Appender(context.Background())
|
|
}
|
|
}
|
|
|
|
require.NoError(t, app.Commit())
|
|
|
|
q, err := NewBlockQuerier(head, head.MinTime(), head.MaxTime())
|
|
require.NoError(t, err)
|
|
t.Cleanup(func() {
|
|
require.NoError(t, q.Close())
|
|
})
|
|
|
|
ss := q.Select(context.Background(), false, nil, labels.MustNewMatcher(labels.MatchEqual, "a", "b"))
|
|
|
|
require.True(t, ss.Next())
|
|
s := ss.At()
|
|
require.False(t, ss.Next())
|
|
|
|
it := s.Iterator(nil)
|
|
actHistograms := make([]chunks.Sample, 0, len(expHistograms))
|
|
actFloatHistograms := make([]chunks.Sample, 0, len(expFloatHistograms))
|
|
for typ := it.Next(); typ != chunkenc.ValNone; typ = it.Next() {
|
|
switch typ {
|
|
case chunkenc.ValHistogram:
|
|
ts, h := it.AtHistogram()
|
|
actHistograms = append(actHistograms, sample{t: ts, h: h})
|
|
case chunkenc.ValFloatHistogram:
|
|
ts, fh := it.AtFloatHistogram()
|
|
actFloatHistograms = append(actFloatHistograms, sample{t: ts, fh: fh})
|
|
}
|
|
}
|
|
|
|
compareSeries(
|
|
t,
|
|
map[string][]chunks.Sample{"dummy": expHistograms},
|
|
map[string][]chunks.Sample{"dummy": actHistograms},
|
|
)
|
|
compareSeries(
|
|
t,
|
|
map[string][]chunks.Sample{"dummy": expFloatHistograms},
|
|
map[string][]chunks.Sample{"dummy": actFloatHistograms},
|
|
)
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestHistogramInWALAndMmapChunk(t *testing.T) {
|
|
head, _ := newTestHead(t, 3000, wlog.CompressionNone, false)
|
|
t.Cleanup(func() {
|
|
require.NoError(t, head.Close())
|
|
})
|
|
require.NoError(t, head.Init(0))
|
|
|
|
// Series with only histograms.
|
|
s1 := labels.FromStrings("a", "b1")
|
|
k1 := s1.String()
|
|
numHistograms := 300
|
|
exp := map[string][]chunks.Sample{}
|
|
ts := int64(0)
|
|
var app storage.Appender
|
|
for _, gauge := range []bool{true, false} {
|
|
app = head.Appender(context.Background())
|
|
var hists []*histogram.Histogram
|
|
if gauge {
|
|
hists = tsdbutil.GenerateTestGaugeHistograms(numHistograms)
|
|
} else {
|
|
hists = tsdbutil.GenerateTestHistograms(numHistograms)
|
|
}
|
|
for _, h := range hists {
|
|
h.NegativeSpans = h.PositiveSpans
|
|
h.NegativeBuckets = h.PositiveBuckets
|
|
_, err := app.AppendHistogram(0, s1, ts, h, nil)
|
|
require.NoError(t, err)
|
|
exp[k1] = append(exp[k1], sample{t: ts, h: h.Copy()})
|
|
ts++
|
|
if ts%5 == 0 {
|
|
require.NoError(t, app.Commit())
|
|
app = head.Appender(context.Background())
|
|
}
|
|
}
|
|
require.NoError(t, app.Commit())
|
|
}
|
|
for _, gauge := range []bool{true, false} {
|
|
app = head.Appender(context.Background())
|
|
var hists []*histogram.FloatHistogram
|
|
if gauge {
|
|
hists = tsdbutil.GenerateTestGaugeFloatHistograms(numHistograms)
|
|
} else {
|
|
hists = tsdbutil.GenerateTestFloatHistograms(numHistograms)
|
|
}
|
|
for _, h := range hists {
|
|
h.NegativeSpans = h.PositiveSpans
|
|
h.NegativeBuckets = h.PositiveBuckets
|
|
_, err := app.AppendHistogram(0, s1, ts, nil, h)
|
|
require.NoError(t, err)
|
|
exp[k1] = append(exp[k1], sample{t: ts, fh: h.Copy()})
|
|
ts++
|
|
if ts%5 == 0 {
|
|
require.NoError(t, app.Commit())
|
|
app = head.Appender(context.Background())
|
|
}
|
|
}
|
|
require.NoError(t, app.Commit())
|
|
head.mmapHeadChunks()
|
|
}
|
|
|
|
// There should be 20 mmap chunks in s1.
|
|
ms := head.series.getByHash(s1.Hash(), s1)
|
|
require.Len(t, ms.mmappedChunks, 25)
|
|
expMmapChunks := make([]*mmappedChunk, 0, 20)
|
|
for _, mmap := range ms.mmappedChunks {
|
|
require.Greater(t, mmap.numSamples, uint16(0))
|
|
cpy := *mmap
|
|
expMmapChunks = append(expMmapChunks, &cpy)
|
|
}
|
|
expHeadChunkSamples := ms.headChunks.chunk.NumSamples()
|
|
require.Greater(t, expHeadChunkSamples, 0)
|
|
|
|
// Series with mix of histograms and float.
|
|
s2 := labels.FromStrings("a", "b2")
|
|
k2 := s2.String()
|
|
ts = 0
|
|
for _, gauge := range []bool{true, false} {
|
|
app = head.Appender(context.Background())
|
|
var hists []*histogram.Histogram
|
|
if gauge {
|
|
hists = tsdbutil.GenerateTestGaugeHistograms(100)
|
|
} else {
|
|
hists = tsdbutil.GenerateTestHistograms(100)
|
|
}
|
|
for _, h := range hists {
|
|
ts++
|
|
h.NegativeSpans = h.PositiveSpans
|
|
h.NegativeBuckets = h.PositiveBuckets
|
|
_, err := app.AppendHistogram(0, s2, ts, h, nil)
|
|
require.NoError(t, err)
|
|
eh := h.Copy()
|
|
if !gauge && ts > 30 && (ts-10)%20 == 1 {
|
|
// Need "unknown" hint after float sample.
|
|
eh.CounterResetHint = histogram.UnknownCounterReset
|
|
}
|
|
exp[k2] = append(exp[k2], sample{t: ts, h: eh})
|
|
if ts%20 == 0 {
|
|
require.NoError(t, app.Commit())
|
|
app = head.Appender(context.Background())
|
|
// Add some float.
|
|
for i := 0; i < 10; i++ {
|
|
ts++
|
|
_, err := app.Append(0, s2, ts, float64(ts))
|
|
require.NoError(t, err)
|
|
exp[k2] = append(exp[k2], sample{t: ts, f: float64(ts)})
|
|
}
|
|
require.NoError(t, app.Commit())
|
|
app = head.Appender(context.Background())
|
|
}
|
|
}
|
|
require.NoError(t, app.Commit())
|
|
}
|
|
for _, gauge := range []bool{true, false} {
|
|
app = head.Appender(context.Background())
|
|
var hists []*histogram.FloatHistogram
|
|
if gauge {
|
|
hists = tsdbutil.GenerateTestGaugeFloatHistograms(100)
|
|
} else {
|
|
hists = tsdbutil.GenerateTestFloatHistograms(100)
|
|
}
|
|
for _, h := range hists {
|
|
ts++
|
|
h.NegativeSpans = h.PositiveSpans
|
|
h.NegativeBuckets = h.PositiveBuckets
|
|
_, err := app.AppendHistogram(0, s2, ts, nil, h)
|
|
require.NoError(t, err)
|
|
eh := h.Copy()
|
|
if !gauge && ts > 30 && (ts-10)%20 == 1 {
|
|
// Need "unknown" hint after float sample.
|
|
eh.CounterResetHint = histogram.UnknownCounterReset
|
|
}
|
|
exp[k2] = append(exp[k2], sample{t: ts, fh: eh})
|
|
if ts%20 == 0 {
|
|
require.NoError(t, app.Commit())
|
|
app = head.Appender(context.Background())
|
|
// Add some float.
|
|
for i := 0; i < 10; i++ {
|
|
ts++
|
|
_, err := app.Append(0, s2, ts, float64(ts))
|
|
require.NoError(t, err)
|
|
exp[k2] = append(exp[k2], sample{t: ts, f: float64(ts)})
|
|
}
|
|
require.NoError(t, app.Commit())
|
|
app = head.Appender(context.Background())
|
|
}
|
|
}
|
|
require.NoError(t, app.Commit())
|
|
}
|
|
|
|
// Restart head.
|
|
require.NoError(t, head.Close())
|
|
startHead := func() {
|
|
w, err := wlog.NewSize(nil, nil, head.wal.Dir(), 32768, wlog.CompressionNone)
|
|
require.NoError(t, err)
|
|
head, err = NewHead(nil, nil, w, nil, head.opts, nil)
|
|
require.NoError(t, err)
|
|
require.NoError(t, head.Init(0))
|
|
}
|
|
startHead()
|
|
|
|
// Checking contents of s1.
|
|
ms = head.series.getByHash(s1.Hash(), s1)
|
|
require.Equal(t, expMmapChunks, ms.mmappedChunks)
|
|
require.Equal(t, expHeadChunkSamples, ms.headChunks.chunk.NumSamples())
|
|
|
|
testQuery := func() {
|
|
q, err := NewBlockQuerier(head, head.MinTime(), head.MaxTime())
|
|
require.NoError(t, err)
|
|
act := query(t, q, labels.MustNewMatcher(labels.MatchRegexp, "a", "b.*"))
|
|
compareSeries(t, exp, act)
|
|
}
|
|
testQuery()
|
|
|
|
// Restart with no mmap chunks to test WAL replay.
|
|
require.NoError(t, head.Close())
|
|
require.NoError(t, os.RemoveAll(mmappedChunksDir(head.opts.ChunkDirRoot)))
|
|
startHead()
|
|
testQuery()
|
|
}
|
|
|
|
func TestChunkSnapshot(t *testing.T) {
|
|
head, _ := newTestHead(t, 120*4, wlog.CompressionNone, false)
|
|
defer func() {
|
|
head.opts.EnableMemorySnapshotOnShutdown = false
|
|
require.NoError(t, head.Close())
|
|
}()
|
|
|
|
type ex struct {
|
|
seriesLabels labels.Labels
|
|
e exemplar.Exemplar
|
|
}
|
|
|
|
numSeries := 10
|
|
expSeries := make(map[string][]chunks.Sample)
|
|
expHist := make(map[string][]chunks.Sample)
|
|
expFloatHist := make(map[string][]chunks.Sample)
|
|
expTombstones := make(map[storage.SeriesRef]tombstones.Intervals)
|
|
expExemplars := make([]ex, 0)
|
|
histograms := tsdbutil.GenerateTestGaugeHistograms(481)
|
|
floatHistogram := tsdbutil.GenerateTestGaugeFloatHistograms(481)
|
|
|
|
addExemplar := func(app storage.Appender, ref storage.SeriesRef, lbls labels.Labels, ts int64) {
|
|
e := ex{
|
|
seriesLabels: lbls,
|
|
e: exemplar.Exemplar{
|
|
Labels: labels.FromStrings("traceID", fmt.Sprintf("%d", rand.Int())),
|
|
Value: rand.Float64(),
|
|
Ts: ts,
|
|
},
|
|
}
|
|
expExemplars = append(expExemplars, e)
|
|
_, err := app.AppendExemplar(ref, e.seriesLabels, e.e)
|
|
require.NoError(t, err)
|
|
}
|
|
|
|
checkSamples := func() {
|
|
q, err := NewBlockQuerier(head, math.MinInt64, math.MaxInt64)
|
|
require.NoError(t, err)
|
|
series := query(t, q, labels.MustNewMatcher(labels.MatchRegexp, "foo", "bar.*"))
|
|
require.Equal(t, expSeries, series)
|
|
}
|
|
checkHistograms := func() {
|
|
q, err := NewBlockQuerier(head, math.MinInt64, math.MaxInt64)
|
|
require.NoError(t, err)
|
|
series := query(t, q, labels.MustNewMatcher(labels.MatchRegexp, "hist", "baz.*"))
|
|
require.Equal(t, expHist, series)
|
|
}
|
|
checkFloatHistograms := func() {
|
|
q, err := NewBlockQuerier(head, math.MinInt64, math.MaxInt64)
|
|
require.NoError(t, err)
|
|
series := query(t, q, labels.MustNewMatcher(labels.MatchRegexp, "floathist", "bat.*"))
|
|
require.Equal(t, expFloatHist, series)
|
|
}
|
|
checkTombstones := func() {
|
|
tr, err := head.Tombstones()
|
|
require.NoError(t, err)
|
|
actTombstones := make(map[storage.SeriesRef]tombstones.Intervals)
|
|
require.NoError(t, tr.Iter(func(ref storage.SeriesRef, itvs tombstones.Intervals) error {
|
|
for _, itv := range itvs {
|
|
actTombstones[ref].Add(itv)
|
|
}
|
|
return nil
|
|
}))
|
|
require.Equal(t, expTombstones, actTombstones)
|
|
}
|
|
checkExemplars := func() {
|
|
actExemplars := make([]ex, 0, len(expExemplars))
|
|
err := head.exemplars.IterateExemplars(func(seriesLabels labels.Labels, e exemplar.Exemplar) error {
|
|
actExemplars = append(actExemplars, ex{
|
|
seriesLabels: seriesLabels,
|
|
e: e,
|
|
})
|
|
return nil
|
|
})
|
|
require.NoError(t, err)
|
|
// Verifies both existence of right exemplars and order of exemplars in the buffer.
|
|
require.Equal(t, expExemplars, actExemplars)
|
|
}
|
|
|
|
var (
|
|
wlast, woffset int
|
|
err error
|
|
)
|
|
|
|
closeHeadAndCheckSnapshot := func() {
|
|
require.NoError(t, head.Close())
|
|
|
|
_, sidx, soffset, err := LastChunkSnapshot(head.opts.ChunkDirRoot)
|
|
require.NoError(t, err)
|
|
require.Equal(t, wlast, sidx)
|
|
require.Equal(t, woffset, soffset)
|
|
}
|
|
|
|
openHeadAndCheckReplay := func() {
|
|
w, err := wlog.NewSize(nil, nil, head.wal.Dir(), 32768, wlog.CompressionNone)
|
|
require.NoError(t, err)
|
|
head, err = NewHead(nil, nil, w, nil, head.opts, nil)
|
|
require.NoError(t, err)
|
|
require.NoError(t, head.Init(math.MinInt64))
|
|
|
|
checkSamples()
|
|
checkHistograms()
|
|
checkFloatHistograms()
|
|
checkTombstones()
|
|
checkExemplars()
|
|
}
|
|
|
|
{ // Initial data that goes into snapshot.
|
|
// Add some initial samples with >=1 m-map chunk.
|
|
app := head.Appender(context.Background())
|
|
for i := 1; i <= numSeries; i++ {
|
|
lbls := labels.FromStrings("foo", fmt.Sprintf("bar%d", i))
|
|
lblStr := lbls.String()
|
|
lblsHist := labels.FromStrings("hist", fmt.Sprintf("baz%d", i))
|
|
lblsHistStr := lblsHist.String()
|
|
lblsFloatHist := labels.FromStrings("floathist", fmt.Sprintf("bat%d", i))
|
|
lblsFloatHistStr := lblsFloatHist.String()
|
|
|
|
// 240 samples should m-map at least 1 chunk.
|
|
for ts := int64(1); ts <= 240; ts++ {
|
|
val := rand.Float64()
|
|
expSeries[lblStr] = append(expSeries[lblStr], sample{ts, val, nil, nil})
|
|
ref, err := app.Append(0, lbls, ts, val)
|
|
require.NoError(t, err)
|
|
|
|
hist := histograms[int(ts)]
|
|
expHist[lblsHistStr] = append(expHist[lblsHistStr], sample{ts, 0, hist, nil})
|
|
_, err = app.AppendHistogram(0, lblsHist, ts, hist, nil)
|
|
require.NoError(t, err)
|
|
|
|
floatHist := floatHistogram[int(ts)]
|
|
expFloatHist[lblsFloatHistStr] = append(expFloatHist[lblsFloatHistStr], sample{ts, 0, nil, floatHist})
|
|
_, err = app.AppendHistogram(0, lblsFloatHist, ts, nil, floatHist)
|
|
require.NoError(t, err)
|
|
|
|
// Add an exemplar and to create multiple WAL records.
|
|
if ts%10 == 0 {
|
|
addExemplar(app, ref, lbls, ts)
|
|
require.NoError(t, app.Commit())
|
|
app = head.Appender(context.Background())
|
|
}
|
|
}
|
|
}
|
|
require.NoError(t, app.Commit())
|
|
|
|
// Add some tombstones.
|
|
var enc record.Encoder
|
|
for i := 1; i <= numSeries; i++ {
|
|
ref := storage.SeriesRef(i)
|
|
itvs := tombstones.Intervals{
|
|
{Mint: 1234, Maxt: 2345},
|
|
{Mint: 3456, Maxt: 4567},
|
|
}
|
|
for _, itv := range itvs {
|
|
expTombstones[ref].Add(itv)
|
|
}
|
|
head.tombstones.AddInterval(ref, itvs...)
|
|
err := head.wal.Log(enc.Tombstones([]tombstones.Stone{
|
|
{Ref: ref, Intervals: itvs},
|
|
}, nil))
|
|
require.NoError(t, err)
|
|
}
|
|
}
|
|
|
|
// These references should be the ones used for the snapshot.
|
|
wlast, woffset, err = head.wal.LastSegmentAndOffset()
|
|
require.NoError(t, err)
|
|
if woffset != 0 && woffset < 32*1024 {
|
|
// The page is always filled before taking the snapshot.
|
|
woffset = 32 * 1024
|
|
}
|
|
|
|
{
|
|
// Creating snapshot and verifying it.
|
|
head.opts.EnableMemorySnapshotOnShutdown = true
|
|
closeHeadAndCheckSnapshot() // This will create a snapshot.
|
|
|
|
// Test the replay of snapshot.
|
|
openHeadAndCheckReplay()
|
|
}
|
|
|
|
{ // Additional data to only include in WAL and m-mapped chunks and not snapshot. This mimics having an old snapshot on disk.
|
|
|
|
// Add more samples.
|
|
app := head.Appender(context.Background())
|
|
for i := 1; i <= numSeries; i++ {
|
|
lbls := labels.FromStrings("foo", fmt.Sprintf("bar%d", i))
|
|
lblStr := lbls.String()
|
|
lblsHist := labels.FromStrings("hist", fmt.Sprintf("baz%d", i))
|
|
lblsHistStr := lblsHist.String()
|
|
lblsFloatHist := labels.FromStrings("floathist", fmt.Sprintf("bat%d", i))
|
|
lblsFloatHistStr := lblsFloatHist.String()
|
|
|
|
// 240 samples should m-map at least 1 chunk.
|
|
for ts := int64(241); ts <= 480; ts++ {
|
|
val := rand.Float64()
|
|
expSeries[lblStr] = append(expSeries[lblStr], sample{ts, val, nil, nil})
|
|
ref, err := app.Append(0, lbls, ts, val)
|
|
require.NoError(t, err)
|
|
|
|
hist := histograms[int(ts)]
|
|
expHist[lblsHistStr] = append(expHist[lblsHistStr], sample{ts, 0, hist, nil})
|
|
_, err = app.AppendHistogram(0, lblsHist, ts, hist, nil)
|
|
require.NoError(t, err)
|
|
|
|
floatHist := floatHistogram[int(ts)]
|
|
expFloatHist[lblsFloatHistStr] = append(expFloatHist[lblsFloatHistStr], sample{ts, 0, nil, floatHist})
|
|
_, err = app.AppendHistogram(0, lblsFloatHist, ts, nil, floatHist)
|
|
require.NoError(t, err)
|
|
|
|
// Add an exemplar and to create multiple WAL records.
|
|
if ts%10 == 0 {
|
|
addExemplar(app, ref, lbls, ts)
|
|
require.NoError(t, app.Commit())
|
|
app = head.Appender(context.Background())
|
|
}
|
|
}
|
|
}
|
|
require.NoError(t, app.Commit())
|
|
|
|
// Add more tombstones.
|
|
var enc record.Encoder
|
|
for i := 1; i <= numSeries; i++ {
|
|
ref := storage.SeriesRef(i)
|
|
itvs := tombstones.Intervals{
|
|
{Mint: 12345, Maxt: 23456},
|
|
{Mint: 34567, Maxt: 45678},
|
|
}
|
|
for _, itv := range itvs {
|
|
expTombstones[ref].Add(itv)
|
|
}
|
|
head.tombstones.AddInterval(ref, itvs...)
|
|
err := head.wal.Log(enc.Tombstones([]tombstones.Stone{
|
|
{Ref: ref, Intervals: itvs},
|
|
}, nil))
|
|
require.NoError(t, err)
|
|
}
|
|
}
|
|
{
|
|
// Close Head and verify that new snapshot was not created.
|
|
head.opts.EnableMemorySnapshotOnShutdown = false
|
|
closeHeadAndCheckSnapshot() // This should not create a snapshot.
|
|
|
|
// Test the replay of snapshot, m-map chunks, and WAL.
|
|
head.opts.EnableMemorySnapshotOnShutdown = true // Enabled to read from snapshot.
|
|
openHeadAndCheckReplay()
|
|
}
|
|
|
|
// Creating another snapshot should delete the older snapshot and replay still works fine.
|
|
wlast, woffset, err = head.wal.LastSegmentAndOffset()
|
|
require.NoError(t, err)
|
|
if woffset != 0 && woffset < 32*1024 {
|
|
// The page is always filled before taking the snapshot.
|
|
woffset = 32 * 1024
|
|
}
|
|
|
|
{
|
|
// Close Head and verify that new snapshot was created.
|
|
closeHeadAndCheckSnapshot()
|
|
|
|
// Verify that there is only 1 snapshot.
|
|
files, err := os.ReadDir(head.opts.ChunkDirRoot)
|
|
require.NoError(t, err)
|
|
snapshots := 0
|
|
for i := len(files) - 1; i >= 0; i-- {
|
|
fi := files[i]
|
|
if strings.HasPrefix(fi.Name(), chunkSnapshotPrefix) {
|
|
snapshots++
|
|
require.Equal(t, chunkSnapshotDir(wlast, woffset), fi.Name())
|
|
}
|
|
}
|
|
require.Equal(t, 1, snapshots)
|
|
|
|
// Test the replay of snapshot.
|
|
head.opts.EnableMemorySnapshotOnShutdown = true // Enabled to read from snapshot.
|
|
|
|
// Disabling exemplars to check that it does not hard fail replay
|
|
// https://github.com/prometheus/prometheus/issues/9437#issuecomment-933285870.
|
|
head.opts.EnableExemplarStorage = false
|
|
head.opts.MaxExemplars.Store(0)
|
|
expExemplars = expExemplars[:0]
|
|
|
|
openHeadAndCheckReplay()
|
|
|
|
require.Equal(t, 0.0, prom_testutil.ToFloat64(head.metrics.snapshotReplayErrorTotal))
|
|
}
|
|
}
|
|
|
|
func TestSnapshotError(t *testing.T) {
|
|
head, _ := newTestHead(t, 120*4, wlog.CompressionNone, false)
|
|
defer func() {
|
|
head.opts.EnableMemorySnapshotOnShutdown = false
|
|
require.NoError(t, head.Close())
|
|
}()
|
|
|
|
// Add a sample.
|
|
app := head.Appender(context.Background())
|
|
lbls := labels.FromStrings("foo", "bar")
|
|
_, err := app.Append(0, lbls, 99, 99)
|
|
require.NoError(t, err)
|
|
|
|
// Add histograms
|
|
hist := tsdbutil.GenerateTestGaugeHistograms(1)[0]
|
|
floatHist := tsdbutil.GenerateTestGaugeFloatHistograms(1)[0]
|
|
lblsHist := labels.FromStrings("hist", "bar")
|
|
lblsFloatHist := labels.FromStrings("floathist", "bar")
|
|
|
|
_, err = app.AppendHistogram(0, lblsHist, 99, hist, nil)
|
|
require.NoError(t, err)
|
|
|
|
_, err = app.AppendHistogram(0, lblsFloatHist, 99, nil, floatHist)
|
|
require.NoError(t, err)
|
|
|
|
require.NoError(t, app.Commit())
|
|
|
|
// Add some tombstones.
|
|
itvs := tombstones.Intervals{
|
|
{Mint: 1234, Maxt: 2345},
|
|
{Mint: 3456, Maxt: 4567},
|
|
}
|
|
head.tombstones.AddInterval(1, itvs...)
|
|
|
|
// Check existence of data.
|
|
require.NotNil(t, head.series.getByHash(lbls.Hash(), lbls))
|
|
tm, err := head.tombstones.Get(1)
|
|
require.NoError(t, err)
|
|
require.NotEmpty(t, tm)
|
|
|
|
head.opts.EnableMemorySnapshotOnShutdown = true
|
|
require.NoError(t, head.Close()) // This will create a snapshot.
|
|
|
|
// Remove the WAL so that we don't load from it.
|
|
require.NoError(t, os.RemoveAll(head.wal.Dir()))
|
|
|
|
// Corrupt the snapshot.
|
|
snapDir, _, _, err := LastChunkSnapshot(head.opts.ChunkDirRoot)
|
|
require.NoError(t, err)
|
|
files, err := os.ReadDir(snapDir)
|
|
require.NoError(t, err)
|
|
f, err := os.OpenFile(path.Join(snapDir, files[0].Name()), os.O_RDWR, 0)
|
|
require.NoError(t, err)
|
|
_, err = f.WriteAt([]byte{0b11111111}, 18)
|
|
require.NoError(t, err)
|
|
require.NoError(t, f.Close())
|
|
|
|
// Create new Head which should replay this snapshot.
|
|
w, err := wlog.NewSize(nil, nil, head.wal.Dir(), 32768, wlog.CompressionNone)
|
|
require.NoError(t, err)
|
|
// Testing https://github.com/prometheus/prometheus/issues/9437 with the registry.
|
|
head, err = NewHead(prometheus.NewRegistry(), nil, w, nil, head.opts, nil)
|
|
require.NoError(t, err)
|
|
require.NoError(t, head.Init(math.MinInt64))
|
|
|
|
// There should be no series in the memory after snapshot error since WAL was removed.
|
|
require.Equal(t, 1.0, prom_testutil.ToFloat64(head.metrics.snapshotReplayErrorTotal))
|
|
require.Nil(t, head.series.getByHash(lbls.Hash(), lbls))
|
|
tm, err = head.tombstones.Get(1)
|
|
require.NoError(t, err)
|
|
require.Empty(t, tm)
|
|
}
|
|
|
|
func TestHistogramMetrics(t *testing.T) {
|
|
numHistograms := 10
|
|
head, _ := newTestHead(t, 1000, wlog.CompressionNone, false)
|
|
t.Cleanup(func() {
|
|
require.NoError(t, head.Close())
|
|
})
|
|
require.NoError(t, head.Init(0))
|
|
|
|
expHSeries, expHSamples := 0, 0
|
|
|
|
for x := 0; x < 5; x++ {
|
|
expHSeries++
|
|
l := labels.FromStrings("a", fmt.Sprintf("b%d", x))
|
|
for i, h := range tsdbutil.GenerateTestHistograms(numHistograms) {
|
|
app := head.Appender(context.Background())
|
|
_, err := app.AppendHistogram(0, l, int64(i), h, nil)
|
|
require.NoError(t, err)
|
|
require.NoError(t, app.Commit())
|
|
expHSamples++
|
|
}
|
|
for i, fh := range tsdbutil.GenerateTestFloatHistograms(numHistograms) {
|
|
app := head.Appender(context.Background())
|
|
_, err := app.AppendHistogram(0, l, int64(numHistograms+i), nil, fh)
|
|
require.NoError(t, err)
|
|
require.NoError(t, app.Commit())
|
|
expHSamples++
|
|
}
|
|
}
|
|
|
|
require.Equal(t, float64(expHSamples), prom_testutil.ToFloat64(head.metrics.samplesAppended.WithLabelValues(sampleMetricTypeHistogram)))
|
|
|
|
require.NoError(t, head.Close())
|
|
w, err := wlog.NewSize(nil, nil, head.wal.Dir(), 32768, wlog.CompressionNone)
|
|
require.NoError(t, err)
|
|
head, err = NewHead(nil, nil, w, nil, head.opts, nil)
|
|
require.NoError(t, err)
|
|
require.NoError(t, head.Init(0))
|
|
|
|
require.Equal(t, float64(0), prom_testutil.ToFloat64(head.metrics.samplesAppended.WithLabelValues(sampleMetricTypeHistogram))) // Counter reset.
|
|
}
|
|
|
|
func TestHistogramStaleSample(t *testing.T) {
|
|
t.Run("integer histogram", func(t *testing.T) {
|
|
testHistogramStaleSampleHelper(t, false)
|
|
})
|
|
t.Run("float histogram", func(t *testing.T) {
|
|
testHistogramStaleSampleHelper(t, true)
|
|
})
|
|
}
|
|
|
|
func testHistogramStaleSampleHelper(t *testing.T, floatHistogram bool) {
|
|
t.Helper()
|
|
l := labels.FromStrings("a", "b")
|
|
numHistograms := 20
|
|
head, _ := newTestHead(t, 100000, wlog.CompressionNone, false)
|
|
t.Cleanup(func() {
|
|
require.NoError(t, head.Close())
|
|
})
|
|
require.NoError(t, head.Init(0))
|
|
|
|
type timedHistogram struct {
|
|
t int64
|
|
h *histogram.Histogram
|
|
fh *histogram.FloatHistogram
|
|
}
|
|
expHistograms := make([]timedHistogram, 0, numHistograms)
|
|
|
|
testQuery := func(numStale int) {
|
|
q, err := NewBlockQuerier(head, head.MinTime(), head.MaxTime())
|
|
require.NoError(t, err)
|
|
t.Cleanup(func() {
|
|
require.NoError(t, q.Close())
|
|
})
|
|
|
|
ss := q.Select(context.Background(), false, nil, labels.MustNewMatcher(labels.MatchEqual, "a", "b"))
|
|
|
|
require.True(t, ss.Next())
|
|
s := ss.At()
|
|
require.False(t, ss.Next())
|
|
|
|
it := s.Iterator(nil)
|
|
actHistograms := make([]timedHistogram, 0, len(expHistograms))
|
|
for typ := it.Next(); typ != chunkenc.ValNone; typ = it.Next() {
|
|
switch typ {
|
|
case chunkenc.ValHistogram:
|
|
t, h := it.AtHistogram()
|
|
actHistograms = append(actHistograms, timedHistogram{t: t, h: h})
|
|
case chunkenc.ValFloatHistogram:
|
|
t, h := it.AtFloatHistogram()
|
|
actHistograms = append(actHistograms, timedHistogram{t: t, fh: h})
|
|
}
|
|
}
|
|
|
|
// We cannot compare StaleNAN with require.Equal, hence checking each histogram manually.
|
|
require.Equal(t, len(expHistograms), len(actHistograms))
|
|
actNumStale := 0
|
|
for i, eh := range expHistograms {
|
|
ah := actHistograms[i]
|
|
if floatHistogram {
|
|
switch {
|
|
case value.IsStaleNaN(eh.fh.Sum):
|
|
actNumStale++
|
|
require.True(t, value.IsStaleNaN(ah.fh.Sum))
|
|
// To make require.Equal work.
|
|
ah.fh.Sum = 0
|
|
eh.fh = eh.fh.Copy()
|
|
eh.fh.Sum = 0
|
|
case i > 0:
|
|
prev := expHistograms[i-1]
|
|
if prev.fh == nil || value.IsStaleNaN(prev.fh.Sum) {
|
|
eh.fh.CounterResetHint = histogram.UnknownCounterReset
|
|
}
|
|
}
|
|
require.Equal(t, eh, ah)
|
|
} else {
|
|
switch {
|
|
case value.IsStaleNaN(eh.h.Sum):
|
|
actNumStale++
|
|
require.True(t, value.IsStaleNaN(ah.h.Sum))
|
|
// To make require.Equal work.
|
|
ah.h.Sum = 0
|
|
eh.h = eh.h.Copy()
|
|
eh.h.Sum = 0
|
|
case i > 0:
|
|
prev := expHistograms[i-1]
|
|
if prev.h == nil || value.IsStaleNaN(prev.h.Sum) {
|
|
eh.h.CounterResetHint = histogram.UnknownCounterReset
|
|
}
|
|
}
|
|
require.Equal(t, eh, ah)
|
|
}
|
|
}
|
|
require.Equal(t, numStale, actNumStale)
|
|
}
|
|
|
|
// Adding stale in the same appender.
|
|
app := head.Appender(context.Background())
|
|
for _, h := range tsdbutil.GenerateTestHistograms(numHistograms) {
|
|
var err error
|
|
if floatHistogram {
|
|
_, err = app.AppendHistogram(0, l, 100*int64(len(expHistograms)), nil, h.ToFloat(nil))
|
|
expHistograms = append(expHistograms, timedHistogram{t: 100 * int64(len(expHistograms)), fh: h.ToFloat(nil)})
|
|
} else {
|
|
_, err = app.AppendHistogram(0, l, 100*int64(len(expHistograms)), h, nil)
|
|
expHistograms = append(expHistograms, timedHistogram{t: 100 * int64(len(expHistograms)), h: h})
|
|
}
|
|
require.NoError(t, err)
|
|
}
|
|
// +1 so that delta-of-delta is not 0.
|
|
_, err := app.Append(0, l, 100*int64(len(expHistograms))+1, math.Float64frombits(value.StaleNaN))
|
|
require.NoError(t, err)
|
|
if floatHistogram {
|
|
expHistograms = append(expHistograms, timedHistogram{t: 100*int64(len(expHistograms)) + 1, fh: &histogram.FloatHistogram{Sum: math.Float64frombits(value.StaleNaN)}})
|
|
} else {
|
|
expHistograms = append(expHistograms, timedHistogram{t: 100*int64(len(expHistograms)) + 1, h: &histogram.Histogram{Sum: math.Float64frombits(value.StaleNaN)}})
|
|
}
|
|
require.NoError(t, app.Commit())
|
|
|
|
// Only 1 chunk in the memory, no m-mapped chunk.
|
|
s := head.series.getByHash(l.Hash(), l)
|
|
require.NotNil(t, s)
|
|
require.NotNil(t, s.headChunks)
|
|
require.Equal(t, 1, s.headChunks.len())
|
|
require.Empty(t, s.mmappedChunks)
|
|
testQuery(1)
|
|
|
|
// Adding stale in different appender and continuing series after a stale sample.
|
|
app = head.Appender(context.Background())
|
|
for _, h := range tsdbutil.GenerateTestHistograms(2 * numHistograms)[numHistograms:] {
|
|
var err error
|
|
if floatHistogram {
|
|
_, err = app.AppendHistogram(0, l, 100*int64(len(expHistograms)), nil, h.ToFloat(nil))
|
|
expHistograms = append(expHistograms, timedHistogram{t: 100 * int64(len(expHistograms)), fh: h.ToFloat(nil)})
|
|
} else {
|
|
_, err = app.AppendHistogram(0, l, 100*int64(len(expHistograms)), h, nil)
|
|
expHistograms = append(expHistograms, timedHistogram{t: 100 * int64(len(expHistograms)), h: h})
|
|
}
|
|
require.NoError(t, err)
|
|
}
|
|
require.NoError(t, app.Commit())
|
|
|
|
app = head.Appender(context.Background())
|
|
// +1 so that delta-of-delta is not 0.
|
|
_, err = app.Append(0, l, 100*int64(len(expHistograms))+1, math.Float64frombits(value.StaleNaN))
|
|
require.NoError(t, err)
|
|
if floatHistogram {
|
|
expHistograms = append(expHistograms, timedHistogram{t: 100*int64(len(expHistograms)) + 1, fh: &histogram.FloatHistogram{Sum: math.Float64frombits(value.StaleNaN)}})
|
|
} else {
|
|
expHistograms = append(expHistograms, timedHistogram{t: 100*int64(len(expHistograms)) + 1, h: &histogram.Histogram{Sum: math.Float64frombits(value.StaleNaN)}})
|
|
}
|
|
require.NoError(t, app.Commit())
|
|
head.mmapHeadChunks()
|
|
|
|
// Total 2 chunks, 1 m-mapped.
|
|
s = head.series.getByHash(l.Hash(), l)
|
|
require.NotNil(t, s)
|
|
require.NotNil(t, s.headChunks)
|
|
require.Equal(t, 1, s.headChunks.len())
|
|
require.Len(t, s.mmappedChunks, 1)
|
|
testQuery(2)
|
|
}
|
|
|
|
func TestHistogramCounterResetHeader(t *testing.T) {
|
|
for _, floatHisto := range []bool{true} { // FIXME
|
|
t.Run(fmt.Sprintf("floatHistogram=%t", floatHisto), func(t *testing.T) {
|
|
l := labels.FromStrings("a", "b")
|
|
head, _ := newTestHead(t, 1000, wlog.CompressionNone, false)
|
|
t.Cleanup(func() {
|
|
require.NoError(t, head.Close())
|
|
})
|
|
require.NoError(t, head.Init(0))
|
|
|
|
ts := int64(0)
|
|
appendHistogram := func(h *histogram.Histogram) {
|
|
ts++
|
|
app := head.Appender(context.Background())
|
|
var err error
|
|
if floatHisto {
|
|
_, err = app.AppendHistogram(0, l, ts, nil, h.ToFloat(nil))
|
|
} else {
|
|
_, err = app.AppendHistogram(0, l, ts, h.Copy(), nil)
|
|
}
|
|
require.NoError(t, err)
|
|
require.NoError(t, app.Commit())
|
|
}
|
|
|
|
var expHeaders []chunkenc.CounterResetHeader
|
|
checkExpCounterResetHeader := func(newHeaders ...chunkenc.CounterResetHeader) {
|
|
expHeaders = append(expHeaders, newHeaders...)
|
|
|
|
ms, _, err := head.getOrCreate(l.Hash(), l)
|
|
require.NoError(t, err)
|
|
ms.mmapChunks(head.chunkDiskMapper)
|
|
require.Len(t, ms.mmappedChunks, len(expHeaders)-1) // One is the head chunk.
|
|
|
|
for i, mmapChunk := range ms.mmappedChunks {
|
|
chk, err := head.chunkDiskMapper.Chunk(mmapChunk.ref)
|
|
require.NoError(t, err)
|
|
if floatHisto {
|
|
require.Equal(t, expHeaders[i], chk.(*chunkenc.FloatHistogramChunk).GetCounterResetHeader())
|
|
} else {
|
|
require.Equal(t, expHeaders[i], chk.(*chunkenc.HistogramChunk).GetCounterResetHeader())
|
|
}
|
|
}
|
|
if floatHisto {
|
|
require.Equal(t, expHeaders[len(expHeaders)-1], ms.headChunks.chunk.(*chunkenc.FloatHistogramChunk).GetCounterResetHeader())
|
|
} else {
|
|
require.Equal(t, expHeaders[len(expHeaders)-1], ms.headChunks.chunk.(*chunkenc.HistogramChunk).GetCounterResetHeader())
|
|
}
|
|
}
|
|
|
|
h := tsdbutil.GenerateTestHistograms(1)[0]
|
|
h.PositiveBuckets = []int64{100, 1, 1, 1}
|
|
h.NegativeBuckets = []int64{100, 1, 1, 1}
|
|
h.Count = 1000
|
|
|
|
// First histogram is UnknownCounterReset.
|
|
appendHistogram(h)
|
|
checkExpCounterResetHeader(chunkenc.UnknownCounterReset)
|
|
|
|
// Another normal histogram.
|
|
h.Count++
|
|
appendHistogram(h)
|
|
checkExpCounterResetHeader()
|
|
|
|
// Counter reset via Count.
|
|
h.Count--
|
|
appendHistogram(h)
|
|
checkExpCounterResetHeader(chunkenc.CounterReset)
|
|
|
|
// Add 2 non-counter reset histogram chunks (each chunk targets 1024 bytes which contains ~500 int histogram
|
|
// samples or ~1000 float histogram samples).
|
|
numAppend := 2000
|
|
if floatHisto {
|
|
numAppend = 1000
|
|
}
|
|
for i := 0; i < numAppend; i++ {
|
|
appendHistogram(h)
|
|
}
|
|
|
|
checkExpCounterResetHeader(chunkenc.NotCounterReset, chunkenc.NotCounterReset)
|
|
|
|
// Changing schema will cut a new chunk with unknown counter reset.
|
|
h.Schema++
|
|
appendHistogram(h)
|
|
checkExpCounterResetHeader(chunkenc.UnknownCounterReset)
|
|
|
|
// Changing schema will zero threshold a new chunk with unknown counter reset.
|
|
h.ZeroThreshold += 0.01
|
|
appendHistogram(h)
|
|
checkExpCounterResetHeader(chunkenc.UnknownCounterReset)
|
|
|
|
// Counter reset by removing a positive bucket.
|
|
h.PositiveSpans[1].Length--
|
|
h.PositiveBuckets = h.PositiveBuckets[1:]
|
|
appendHistogram(h)
|
|
checkExpCounterResetHeader(chunkenc.CounterReset)
|
|
|
|
// Counter reset by removing a negative bucket.
|
|
h.NegativeSpans[1].Length--
|
|
h.NegativeBuckets = h.NegativeBuckets[1:]
|
|
appendHistogram(h)
|
|
checkExpCounterResetHeader(chunkenc.CounterReset)
|
|
|
|
// Add 2 non-counter reset histogram chunks. Just to have some non-counter reset chunks in between.
|
|
for i := 0; i < 2000; i++ {
|
|
appendHistogram(h)
|
|
}
|
|
checkExpCounterResetHeader(chunkenc.NotCounterReset, chunkenc.NotCounterReset)
|
|
|
|
// Counter reset with counter reset in a positive bucket.
|
|
h.PositiveBuckets[len(h.PositiveBuckets)-1]--
|
|
appendHistogram(h)
|
|
checkExpCounterResetHeader(chunkenc.CounterReset)
|
|
|
|
// Counter reset with counter reset in a negative bucket.
|
|
h.NegativeBuckets[len(h.NegativeBuckets)-1]--
|
|
appendHistogram(h)
|
|
checkExpCounterResetHeader(chunkenc.CounterReset)
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestAppendingDifferentEncodingToSameSeries(t *testing.T) {
|
|
dir := t.TempDir()
|
|
opts := DefaultOptions()
|
|
opts.EnableNativeHistograms = true
|
|
db, err := Open(dir, nil, nil, opts, nil)
|
|
require.NoError(t, err)
|
|
t.Cleanup(func() {
|
|
require.NoError(t, db.Close())
|
|
})
|
|
db.DisableCompactions()
|
|
|
|
hists := tsdbutil.GenerateTestHistograms(10)
|
|
floatHists := tsdbutil.GenerateTestFloatHistograms(10)
|
|
lbls := labels.FromStrings("a", "b")
|
|
|
|
var expResult []chunks.Sample
|
|
checkExpChunks := func(count int) {
|
|
ms, created, err := db.Head().getOrCreate(lbls.Hash(), lbls)
|
|
require.NoError(t, err)
|
|
require.False(t, created)
|
|
require.NotNil(t, ms)
|
|
require.Equal(t, count, ms.headChunks.len())
|
|
}
|
|
|
|
appends := []struct {
|
|
samples []chunks.Sample
|
|
expChunks int
|
|
err error
|
|
// If this is empty, samples above will be taken instead of this.
|
|
addToExp []chunks.Sample
|
|
}{
|
|
// Histograms that end up in the expected samples are copied here so that we
|
|
// can independently set the CounterResetHint later.
|
|
{
|
|
samples: []chunks.Sample{sample{t: 100, h: hists[0].Copy()}},
|
|
expChunks: 1,
|
|
},
|
|
{
|
|
samples: []chunks.Sample{sample{t: 200, f: 2}},
|
|
expChunks: 2,
|
|
},
|
|
{
|
|
samples: []chunks.Sample{sample{t: 210, fh: floatHists[0].Copy()}},
|
|
expChunks: 3,
|
|
},
|
|
{
|
|
samples: []chunks.Sample{sample{t: 220, h: hists[1].Copy()}},
|
|
expChunks: 4,
|
|
},
|
|
{
|
|
samples: []chunks.Sample{sample{t: 230, fh: floatHists[3].Copy()}},
|
|
expChunks: 5,
|
|
},
|
|
{
|
|
samples: []chunks.Sample{sample{t: 100, h: hists[2].Copy()}},
|
|
err: storage.ErrOutOfOrderSample,
|
|
},
|
|
{
|
|
samples: []chunks.Sample{sample{t: 300, h: hists[3].Copy()}},
|
|
expChunks: 6,
|
|
},
|
|
{
|
|
samples: []chunks.Sample{sample{t: 100, f: 2}},
|
|
err: storage.ErrOutOfOrderSample,
|
|
},
|
|
{
|
|
samples: []chunks.Sample{sample{t: 100, fh: floatHists[4].Copy()}},
|
|
err: storage.ErrOutOfOrderSample,
|
|
},
|
|
{
|
|
// Combination of histograms and float64 in the same commit. The behaviour is undefined, but we want to also
|
|
// verify how TSDB would behave. Here the histogram is appended at the end, hence will be considered as out of order.
|
|
samples: []chunks.Sample{
|
|
sample{t: 400, f: 4},
|
|
sample{t: 500, h: hists[5]}, // This won't be committed.
|
|
sample{t: 600, f: 6},
|
|
},
|
|
addToExp: []chunks.Sample{
|
|
sample{t: 400, f: 4},
|
|
sample{t: 600, f: 6},
|
|
},
|
|
expChunks: 7, // Only 1 new chunk for float64.
|
|
},
|
|
{
|
|
// Here the histogram is appended at the end, hence the first histogram is out of order.
|
|
samples: []chunks.Sample{
|
|
sample{t: 700, h: hists[7]}, // Out of order w.r.t. the next float64 sample that is appended first.
|
|
sample{t: 800, f: 8},
|
|
sample{t: 900, h: hists[9]},
|
|
},
|
|
addToExp: []chunks.Sample{
|
|
sample{t: 800, f: 8},
|
|
sample{t: 900, h: hists[9].Copy()},
|
|
},
|
|
expChunks: 8, // float64 added to old chunk, only 1 new for histograms.
|
|
},
|
|
{
|
|
// Float histogram is appended at the end.
|
|
samples: []chunks.Sample{
|
|
sample{t: 1000, fh: floatHists[7]}, // Out of order w.r.t. the next histogram.
|
|
sample{t: 1100, h: hists[9]},
|
|
},
|
|
addToExp: []chunks.Sample{
|
|
sample{t: 1100, h: hists[9].Copy()},
|
|
},
|
|
expChunks: 8,
|
|
},
|
|
}
|
|
|
|
for _, a := range appends {
|
|
app := db.Appender(context.Background())
|
|
for _, s := range a.samples {
|
|
var err error
|
|
if s.H() != nil || s.FH() != nil {
|
|
_, err = app.AppendHistogram(0, lbls, s.T(), s.H(), s.FH())
|
|
} else {
|
|
_, err = app.Append(0, lbls, s.T(), s.F())
|
|
}
|
|
require.Equal(t, a.err, err)
|
|
}
|
|
|
|
if a.err == nil {
|
|
require.NoError(t, app.Commit())
|
|
if len(a.addToExp) > 0 {
|
|
expResult = append(expResult, a.addToExp...)
|
|
} else {
|
|
expResult = append(expResult, a.samples...)
|
|
}
|
|
checkExpChunks(a.expChunks)
|
|
} else {
|
|
require.NoError(t, app.Rollback())
|
|
}
|
|
}
|
|
for i, s := range expResult[1:] {
|
|
switch {
|
|
case s.H() != nil && expResult[i].H() == nil:
|
|
s.(sample).h.CounterResetHint = histogram.UnknownCounterReset
|
|
case s.FH() != nil && expResult[i].FH() == nil:
|
|
s.(sample).fh.CounterResetHint = histogram.UnknownCounterReset
|
|
}
|
|
}
|
|
|
|
// Query back and expect same order of samples.
|
|
q, err := db.Querier(math.MinInt64, math.MaxInt64)
|
|
require.NoError(t, err)
|
|
|
|
series := query(t, q, labels.MustNewMatcher(labels.MatchEqual, "a", "b"))
|
|
require.Equal(t, map[string][]chunks.Sample{lbls.String(): expResult}, series)
|
|
}
|
|
|
|
// Tests https://github.com/prometheus/prometheus/issues/9725.
|
|
func TestChunkSnapshotReplayBug(t *testing.T) {
|
|
dir := t.TempDir()
|
|
wal, err := wlog.NewSize(nil, nil, filepath.Join(dir, "wal"), 32768, wlog.CompressionSnappy)
|
|
require.NoError(t, err)
|
|
|
|
// Write few series records and samples such that the series references are not in order in the WAL
|
|
// for status_code="200".
|
|
var buf []byte
|
|
for i := 1; i <= 1000; i++ {
|
|
var ref chunks.HeadSeriesRef
|
|
if i <= 500 {
|
|
ref = chunks.HeadSeriesRef(i * 100)
|
|
} else {
|
|
ref = chunks.HeadSeriesRef((i - 500) * 50)
|
|
}
|
|
seriesRec := record.RefSeries{
|
|
Ref: ref,
|
|
Labels: labels.FromStrings(
|
|
"__name__", "request_duration",
|
|
"status_code", "200",
|
|
"foo", fmt.Sprintf("baz%d", rand.Int()),
|
|
),
|
|
}
|
|
// Add a sample so that the series is not garbage collected.
|
|
samplesRec := record.RefSample{Ref: ref, T: 1000, V: 1000}
|
|
var enc record.Encoder
|
|
|
|
rec := enc.Series([]record.RefSeries{seriesRec}, buf)
|
|
buf = rec[:0]
|
|
require.NoError(t, wal.Log(rec))
|
|
rec = enc.Samples([]record.RefSample{samplesRec}, buf)
|
|
buf = rec[:0]
|
|
require.NoError(t, wal.Log(rec))
|
|
}
|
|
|
|
// Write a corrupt snapshot to fail the replay on startup.
|
|
snapshotName := chunkSnapshotDir(0, 100)
|
|
cpdir := filepath.Join(dir, snapshotName)
|
|
require.NoError(t, os.MkdirAll(cpdir, 0o777))
|
|
|
|
err = os.WriteFile(filepath.Join(cpdir, "00000000"), []byte{1, 5, 3, 5, 6, 7, 4, 2, 2}, 0o777)
|
|
require.NoError(t, err)
|
|
|
|
opts := DefaultHeadOptions()
|
|
opts.ChunkDirRoot = dir
|
|
opts.EnableMemorySnapshotOnShutdown = true
|
|
head, err := NewHead(nil, nil, wal, nil, opts, nil)
|
|
require.NoError(t, err)
|
|
require.NoError(t, head.Init(math.MinInt64))
|
|
defer func() {
|
|
require.NoError(t, head.Close())
|
|
}()
|
|
|
|
// Snapshot replay should error out.
|
|
require.Equal(t, 1.0, prom_testutil.ToFloat64(head.metrics.snapshotReplayErrorTotal))
|
|
|
|
// Querying `request_duration{status_code!="200"}` should return no series since all of
|
|
// them have status_code="200".
|
|
q, err := NewBlockQuerier(head, math.MinInt64, math.MaxInt64)
|
|
require.NoError(t, err)
|
|
series := query(t, q,
|
|
labels.MustNewMatcher(labels.MatchEqual, "__name__", "request_duration"),
|
|
labels.MustNewMatcher(labels.MatchNotEqual, "status_code", "200"),
|
|
)
|
|
require.Empty(t, series, "there should be no series found")
|
|
}
|
|
|
|
func TestChunkSnapshotTakenAfterIncompleteSnapshot(t *testing.T) {
|
|
dir := t.TempDir()
|
|
wlTemp, err := wlog.NewSize(nil, nil, filepath.Join(dir, "wal"), 32768, wlog.CompressionSnappy)
|
|
require.NoError(t, err)
|
|
|
|
// Write a snapshot with .tmp suffix. This used to fail taking any further snapshots or replay of snapshots.
|
|
snapshotName := chunkSnapshotDir(0, 100) + ".tmp"
|
|
cpdir := filepath.Join(dir, snapshotName)
|
|
require.NoError(t, os.MkdirAll(cpdir, 0o777))
|
|
|
|
opts := DefaultHeadOptions()
|
|
opts.ChunkDirRoot = dir
|
|
opts.EnableMemorySnapshotOnShutdown = true
|
|
head, err := NewHead(nil, nil, wlTemp, nil, opts, nil)
|
|
require.NoError(t, err)
|
|
require.NoError(t, head.Init(math.MinInt64))
|
|
|
|
require.Equal(t, 0.0, prom_testutil.ToFloat64(head.metrics.snapshotReplayErrorTotal))
|
|
|
|
// Add some samples for the snapshot.
|
|
app := head.Appender(context.Background())
|
|
_, err = app.Append(0, labels.FromStrings("foo", "bar"), 10, 10)
|
|
require.NoError(t, err)
|
|
require.NoError(t, app.Commit())
|
|
|
|
// Should not return any error for a successful snapshot.
|
|
require.NoError(t, head.Close())
|
|
|
|
// Verify the snapshot.
|
|
name, idx, offset, err := LastChunkSnapshot(dir)
|
|
require.NoError(t, err)
|
|
require.NotEqual(t, "", name)
|
|
require.Equal(t, 0, idx)
|
|
require.Greater(t, offset, 0)
|
|
}
|
|
|
|
// TestWBLReplay checks the replay at a low level.
|
|
func TestWBLReplay(t *testing.T) {
|
|
dir := t.TempDir()
|
|
wal, err := wlog.NewSize(nil, nil, filepath.Join(dir, "wal"), 32768, wlog.CompressionSnappy)
|
|
require.NoError(t, err)
|
|
oooWlog, err := wlog.NewSize(nil, nil, filepath.Join(dir, wlog.WblDirName), 32768, wlog.CompressionSnappy)
|
|
require.NoError(t, err)
|
|
|
|
opts := DefaultHeadOptions()
|
|
opts.ChunkRange = 1000
|
|
opts.ChunkDirRoot = dir
|
|
opts.OutOfOrderTimeWindow.Store(30 * time.Minute.Milliseconds())
|
|
|
|
h, err := NewHead(nil, nil, wal, oooWlog, opts, nil)
|
|
require.NoError(t, err)
|
|
require.NoError(t, h.Init(0))
|
|
|
|
var expOOOSamples []sample
|
|
l := labels.FromStrings("foo", "bar")
|
|
appendSample := func(mins int64, isOOO bool) {
|
|
app := h.Appender(context.Background())
|
|
ts, v := mins*time.Minute.Milliseconds(), float64(mins)
|
|
_, err := app.Append(0, l, ts, v)
|
|
require.NoError(t, err)
|
|
require.NoError(t, app.Commit())
|
|
|
|
if isOOO {
|
|
expOOOSamples = append(expOOOSamples, sample{t: ts, f: v})
|
|
}
|
|
}
|
|
|
|
// In-order sample.
|
|
appendSample(60, false)
|
|
|
|
// Out of order samples.
|
|
appendSample(40, true)
|
|
appendSample(35, true)
|
|
appendSample(50, true)
|
|
appendSample(55, true)
|
|
appendSample(59, true)
|
|
appendSample(31, true)
|
|
|
|
// Check that Head's time ranges are set properly.
|
|
require.Equal(t, 60*time.Minute.Milliseconds(), h.MinTime())
|
|
require.Equal(t, 60*time.Minute.Milliseconds(), h.MaxTime())
|
|
require.Equal(t, 31*time.Minute.Milliseconds(), h.MinOOOTime())
|
|
require.Equal(t, 59*time.Minute.Milliseconds(), h.MaxOOOTime())
|
|
|
|
// Restart head.
|
|
require.NoError(t, h.Close())
|
|
wal, err = wlog.NewSize(nil, nil, filepath.Join(dir, "wal"), 32768, wlog.CompressionSnappy)
|
|
require.NoError(t, err)
|
|
oooWlog, err = wlog.NewSize(nil, nil, filepath.Join(dir, wlog.WblDirName), 32768, wlog.CompressionSnappy)
|
|
require.NoError(t, err)
|
|
h, err = NewHead(nil, nil, wal, oooWlog, opts, nil)
|
|
require.NoError(t, err)
|
|
require.NoError(t, h.Init(0)) // Replay happens here.
|
|
|
|
// Get the ooo samples from the Head.
|
|
ms, ok, err := h.getOrCreate(l.Hash(), l)
|
|
require.NoError(t, err)
|
|
require.False(t, ok)
|
|
require.NotNil(t, ms)
|
|
|
|
xor, err := ms.ooo.oooHeadChunk.chunk.ToXOR()
|
|
require.NoError(t, err)
|
|
|
|
it := xor.Iterator(nil)
|
|
actOOOSamples := make([]sample, 0, len(expOOOSamples))
|
|
for it.Next() == chunkenc.ValFloat {
|
|
ts, v := it.At()
|
|
actOOOSamples = append(actOOOSamples, sample{t: ts, f: v})
|
|
}
|
|
|
|
// OOO chunk will be sorted. Hence sort the expected samples.
|
|
sort.Slice(expOOOSamples, func(i, j int) bool {
|
|
return expOOOSamples[i].t < expOOOSamples[j].t
|
|
})
|
|
|
|
require.Equal(t, expOOOSamples, actOOOSamples)
|
|
|
|
require.NoError(t, h.Close())
|
|
}
|
|
|
|
// TestOOOMmapReplay checks the replay at a low level.
|
|
func TestOOOMmapReplay(t *testing.T) {
|
|
dir := t.TempDir()
|
|
wal, err := wlog.NewSize(nil, nil, filepath.Join(dir, "wal"), 32768, wlog.CompressionSnappy)
|
|
require.NoError(t, err)
|
|
oooWlog, err := wlog.NewSize(nil, nil, filepath.Join(dir, wlog.WblDirName), 32768, wlog.CompressionSnappy)
|
|
require.NoError(t, err)
|
|
|
|
opts := DefaultHeadOptions()
|
|
opts.ChunkRange = 1000
|
|
opts.ChunkDirRoot = dir
|
|
opts.OutOfOrderCapMax.Store(30)
|
|
opts.OutOfOrderTimeWindow.Store(1000 * time.Minute.Milliseconds())
|
|
|
|
h, err := NewHead(nil, nil, wal, oooWlog, opts, nil)
|
|
require.NoError(t, err)
|
|
require.NoError(t, h.Init(0))
|
|
|
|
l := labels.FromStrings("foo", "bar")
|
|
appendSample := func(mins int64) {
|
|
app := h.Appender(context.Background())
|
|
ts, v := mins*time.Minute.Milliseconds(), float64(mins)
|
|
_, err := app.Append(0, l, ts, v)
|
|
require.NoError(t, err)
|
|
require.NoError(t, app.Commit())
|
|
}
|
|
|
|
// In-order sample.
|
|
appendSample(200)
|
|
|
|
// Out of order samples. 92 samples to create 3 m-map chunks.
|
|
for mins := int64(100); mins <= 191; mins++ {
|
|
appendSample(mins)
|
|
}
|
|
|
|
ms, ok, err := h.getOrCreate(l.Hash(), l)
|
|
require.NoError(t, err)
|
|
require.False(t, ok)
|
|
require.NotNil(t, ms)
|
|
|
|
require.Len(t, ms.ooo.oooMmappedChunks, 3)
|
|
// Verify that we can access the chunks without error.
|
|
for _, m := range ms.ooo.oooMmappedChunks {
|
|
chk, err := h.chunkDiskMapper.Chunk(m.ref)
|
|
require.NoError(t, err)
|
|
require.Equal(t, int(m.numSamples), chk.NumSamples())
|
|
}
|
|
|
|
expMmapChunks := make([]*mmappedChunk, 3)
|
|
copy(expMmapChunks, ms.ooo.oooMmappedChunks)
|
|
|
|
// Restart head.
|
|
require.NoError(t, h.Close())
|
|
|
|
wal, err = wlog.NewSize(nil, nil, filepath.Join(dir, "wal"), 32768, wlog.CompressionSnappy)
|
|
require.NoError(t, err)
|
|
oooWlog, err = wlog.NewSize(nil, nil, filepath.Join(dir, wlog.WblDirName), 32768, wlog.CompressionSnappy)
|
|
require.NoError(t, err)
|
|
h, err = NewHead(nil, nil, wal, oooWlog, opts, nil)
|
|
require.NoError(t, err)
|
|
require.NoError(t, h.Init(0)) // Replay happens here.
|
|
|
|
// Get the mmap chunks from the Head.
|
|
ms, ok, err = h.getOrCreate(l.Hash(), l)
|
|
require.NoError(t, err)
|
|
require.False(t, ok)
|
|
require.NotNil(t, ms)
|
|
|
|
require.Len(t, ms.ooo.oooMmappedChunks, len(expMmapChunks))
|
|
// Verify that we can access the chunks without error.
|
|
for _, m := range ms.ooo.oooMmappedChunks {
|
|
chk, err := h.chunkDiskMapper.Chunk(m.ref)
|
|
require.NoError(t, err)
|
|
require.Equal(t, int(m.numSamples), chk.NumSamples())
|
|
}
|
|
|
|
actMmapChunks := make([]*mmappedChunk, len(expMmapChunks))
|
|
copy(actMmapChunks, ms.ooo.oooMmappedChunks)
|
|
|
|
require.Equal(t, expMmapChunks, actMmapChunks)
|
|
|
|
require.NoError(t, h.Close())
|
|
}
|
|
|
|
func TestHeadInit_DiscardChunksWithUnsupportedEncoding(t *testing.T) {
|
|
h, _ := newTestHead(t, 1000, wlog.CompressionNone, false)
|
|
defer func() {
|
|
require.NoError(t, h.Close())
|
|
}()
|
|
|
|
require.NoError(t, h.Init(0))
|
|
|
|
ctx := context.Background()
|
|
app := h.Appender(ctx)
|
|
seriesLabels := labels.FromStrings("a", "1")
|
|
var seriesRef storage.SeriesRef
|
|
var err error
|
|
for i := 0; i < 400; i++ {
|
|
seriesRef, err = app.Append(0, seriesLabels, int64(i), float64(i))
|
|
require.NoError(t, err)
|
|
}
|
|
|
|
require.NoError(t, app.Commit())
|
|
require.Greater(t, prom_testutil.ToFloat64(h.metrics.chunksCreated), 1.0)
|
|
|
|
uc := newUnsupportedChunk()
|
|
// Make this chunk not overlap with the previous and the next
|
|
h.chunkDiskMapper.WriteChunk(chunks.HeadSeriesRef(seriesRef), 500, 600, uc, false, func(err error) { require.NoError(t, err) })
|
|
|
|
app = h.Appender(ctx)
|
|
for i := 700; i < 1200; i++ {
|
|
_, err := app.Append(0, seriesLabels, int64(i), float64(i))
|
|
require.NoError(t, err)
|
|
}
|
|
|
|
require.NoError(t, app.Commit())
|
|
require.Greater(t, prom_testutil.ToFloat64(h.metrics.chunksCreated), 4.0)
|
|
|
|
series, created, err := h.getOrCreate(seriesLabels.Hash(), seriesLabels)
|
|
require.NoError(t, err)
|
|
require.False(t, created, "should already exist")
|
|
require.NotNil(t, series, "should return the series we created above")
|
|
|
|
series.mmapChunks(h.chunkDiskMapper)
|
|
expChunks := make([]*mmappedChunk, len(series.mmappedChunks))
|
|
copy(expChunks, series.mmappedChunks)
|
|
|
|
require.NoError(t, h.Close())
|
|
|
|
wal, err := wlog.NewSize(nil, nil, filepath.Join(h.opts.ChunkDirRoot, "wal"), 32768, wlog.CompressionNone)
|
|
require.NoError(t, err)
|
|
h, err = NewHead(nil, nil, wal, nil, h.opts, nil)
|
|
require.NoError(t, err)
|
|
require.NoError(t, h.Init(0))
|
|
|
|
series, created, err = h.getOrCreate(seriesLabels.Hash(), seriesLabels)
|
|
require.NoError(t, err)
|
|
require.False(t, created, "should already exist")
|
|
require.NotNil(t, series, "should return the series we created above")
|
|
|
|
require.Equal(t, expChunks, series.mmappedChunks)
|
|
}
|
|
|
|
const (
|
|
UnsupportedMask = 0b10000000
|
|
EncUnsupportedXOR = chunkenc.EncXOR | UnsupportedMask
|
|
)
|
|
|
|
// unsupportedChunk holds a XORChunk and overrides the Encoding() method.
|
|
type unsupportedChunk struct {
|
|
*chunkenc.XORChunk
|
|
}
|
|
|
|
func newUnsupportedChunk() *unsupportedChunk {
|
|
return &unsupportedChunk{chunkenc.NewXORChunk()}
|
|
}
|
|
|
|
func (c *unsupportedChunk) Encoding() chunkenc.Encoding {
|
|
return EncUnsupportedXOR
|
|
}
|
|
|
|
// Tests https://github.com/prometheus/prometheus/issues/10277.
|
|
func TestMmapPanicAfterMmapReplayCorruption(t *testing.T) {
|
|
dir := t.TempDir()
|
|
wal, err := wlog.NewSize(nil, nil, filepath.Join(dir, "wal"), 32768, wlog.CompressionNone)
|
|
require.NoError(t, err)
|
|
|
|
opts := DefaultHeadOptions()
|
|
opts.ChunkRange = DefaultBlockDuration
|
|
opts.ChunkDirRoot = dir
|
|
opts.EnableExemplarStorage = true
|
|
opts.MaxExemplars.Store(config.DefaultExemplarsConfig.MaxExemplars)
|
|
|
|
h, err := NewHead(nil, nil, wal, nil, opts, nil)
|
|
require.NoError(t, err)
|
|
require.NoError(t, h.Init(0))
|
|
|
|
lastTs := int64(0)
|
|
var ref storage.SeriesRef
|
|
lbls := labels.FromStrings("__name__", "testing", "foo", "bar")
|
|
addChunks := func() {
|
|
interval := DefaultBlockDuration / (4 * 120)
|
|
app := h.Appender(context.Background())
|
|
for i := 0; i < 250; i++ {
|
|
ref, err = app.Append(ref, lbls, lastTs, float64(lastTs))
|
|
lastTs += interval
|
|
if i%10 == 0 {
|
|
require.NoError(t, app.Commit())
|
|
app = h.Appender(context.Background())
|
|
}
|
|
}
|
|
require.NoError(t, app.Commit())
|
|
}
|
|
|
|
addChunks()
|
|
|
|
require.NoError(t, h.Close())
|
|
wal, err = wlog.NewSize(nil, nil, filepath.Join(dir, "wal"), 32768, wlog.CompressionNone)
|
|
require.NoError(t, err)
|
|
|
|
mmapFilePath := filepath.Join(dir, "chunks_head", "000001")
|
|
f, err := os.OpenFile(mmapFilePath, os.O_WRONLY, 0o666)
|
|
require.NoError(t, err)
|
|
_, err = f.WriteAt([]byte{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11}, 17)
|
|
require.NoError(t, err)
|
|
require.NoError(t, f.Close())
|
|
|
|
h, err = NewHead(nil, nil, wal, nil, opts, nil)
|
|
require.NoError(t, err)
|
|
require.NoError(t, h.Init(0))
|
|
|
|
addChunks()
|
|
|
|
require.NoError(t, h.Close())
|
|
}
|
|
|
|
// Tests https://github.com/prometheus/prometheus/issues/10277.
|
|
func TestReplayAfterMmapReplayError(t *testing.T) {
|
|
dir := t.TempDir()
|
|
var h *Head
|
|
var err error
|
|
|
|
openHead := func() {
|
|
wal, err := wlog.NewSize(nil, nil, filepath.Join(dir, "wal"), 32768, wlog.CompressionNone)
|
|
require.NoError(t, err)
|
|
|
|
opts := DefaultHeadOptions()
|
|
opts.ChunkRange = DefaultBlockDuration
|
|
opts.ChunkDirRoot = dir
|
|
opts.EnableMemorySnapshotOnShutdown = true
|
|
opts.MaxExemplars.Store(config.DefaultExemplarsConfig.MaxExemplars)
|
|
|
|
h, err = NewHead(nil, nil, wal, nil, opts, nil)
|
|
require.NoError(t, err)
|
|
require.NoError(t, h.Init(0))
|
|
}
|
|
|
|
openHead()
|
|
|
|
itvl := int64(15 * time.Second / time.Millisecond)
|
|
lastTs := int64(0)
|
|
lbls := labels.FromStrings("__name__", "testing", "foo", "bar")
|
|
var expSamples []chunks.Sample
|
|
addSamples := func(numSamples int) {
|
|
app := h.Appender(context.Background())
|
|
var ref storage.SeriesRef
|
|
for i := 0; i < numSamples; i++ {
|
|
ref, err = app.Append(ref, lbls, lastTs, float64(lastTs))
|
|
expSamples = append(expSamples, sample{t: lastTs, f: float64(lastTs)})
|
|
require.NoError(t, err)
|
|
lastTs += itvl
|
|
if i%10 == 0 {
|
|
require.NoError(t, app.Commit())
|
|
app = h.Appender(context.Background())
|
|
}
|
|
}
|
|
require.NoError(t, app.Commit())
|
|
}
|
|
|
|
// Creating multiple m-map files.
|
|
for i := 0; i < 5; i++ {
|
|
addSamples(250)
|
|
require.NoError(t, h.Close())
|
|
if i != 4 {
|
|
// Don't open head for the last iteration.
|
|
openHead()
|
|
}
|
|
}
|
|
|
|
files, err := os.ReadDir(filepath.Join(dir, "chunks_head"))
|
|
require.Len(t, files, 5)
|
|
|
|
// Corrupt a m-map file.
|
|
mmapFilePath := filepath.Join(dir, "chunks_head", "000002")
|
|
f, err := os.OpenFile(mmapFilePath, os.O_WRONLY, 0o666)
|
|
require.NoError(t, err)
|
|
_, err = f.WriteAt([]byte{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11}, 17)
|
|
require.NoError(t, err)
|
|
require.NoError(t, f.Close())
|
|
|
|
openHead()
|
|
h.mmapHeadChunks()
|
|
|
|
// There should be less m-map files due to corruption.
|
|
files, err = os.ReadDir(filepath.Join(dir, "chunks_head"))
|
|
require.Len(t, files, 2)
|
|
|
|
// Querying should not panic.
|
|
q, err := NewBlockQuerier(h, 0, lastTs)
|
|
require.NoError(t, err)
|
|
res := query(t, q, labels.MustNewMatcher(labels.MatchEqual, "__name__", "testing"))
|
|
require.Equal(t, map[string][]chunks.Sample{lbls.String(): expSamples}, res)
|
|
|
|
require.NoError(t, h.Close())
|
|
}
|
|
|
|
func TestOOOAppendWithNoSeries(t *testing.T) {
|
|
dir := t.TempDir()
|
|
wal, err := wlog.NewSize(nil, nil, filepath.Join(dir, "wal"), 32768, wlog.CompressionSnappy)
|
|
require.NoError(t, err)
|
|
oooWlog, err := wlog.NewSize(nil, nil, filepath.Join(dir, wlog.WblDirName), 32768, wlog.CompressionSnappy)
|
|
require.NoError(t, err)
|
|
|
|
opts := DefaultHeadOptions()
|
|
opts.ChunkDirRoot = dir
|
|
opts.OutOfOrderCapMax.Store(30)
|
|
opts.OutOfOrderTimeWindow.Store(120 * time.Minute.Milliseconds())
|
|
|
|
h, err := NewHead(nil, nil, wal, oooWlog, opts, nil)
|
|
require.NoError(t, err)
|
|
t.Cleanup(func() {
|
|
require.NoError(t, h.Close())
|
|
})
|
|
require.NoError(t, h.Init(0))
|
|
|
|
appendSample := func(lbls labels.Labels, ts int64) {
|
|
app := h.Appender(context.Background())
|
|
_, err := app.Append(0, lbls, ts*time.Minute.Milliseconds(), float64(ts))
|
|
require.NoError(t, err)
|
|
require.NoError(t, app.Commit())
|
|
}
|
|
|
|
verifyOOOSamples := func(lbls labels.Labels, expSamples int) {
|
|
ms, created, err := h.getOrCreate(lbls.Hash(), lbls)
|
|
require.NoError(t, err)
|
|
require.False(t, created)
|
|
require.NotNil(t, ms)
|
|
|
|
require.Nil(t, ms.headChunks)
|
|
require.NotNil(t, ms.ooo.oooHeadChunk)
|
|
require.Equal(t, expSamples, ms.ooo.oooHeadChunk.chunk.NumSamples())
|
|
}
|
|
|
|
verifyInOrderSamples := func(lbls labels.Labels, expSamples int) {
|
|
ms, created, err := h.getOrCreate(lbls.Hash(), lbls)
|
|
require.NoError(t, err)
|
|
require.False(t, created)
|
|
require.NotNil(t, ms)
|
|
|
|
require.Nil(t, ms.ooo)
|
|
require.NotNil(t, ms.headChunks)
|
|
require.Equal(t, expSamples, ms.headChunks.chunk.NumSamples())
|
|
}
|
|
|
|
newLabels := func(idx int) labels.Labels { return labels.FromStrings("foo", fmt.Sprintf("%d", idx)) }
|
|
|
|
s1 := newLabels(1)
|
|
appendSample(s1, 300) // At 300m.
|
|
verifyInOrderSamples(s1, 1)
|
|
|
|
// At 239m, the sample cannot be appended to in-order chunk since it is
|
|
// beyond the minValidTime. So it should go in OOO chunk.
|
|
// Series does not exist for s2 yet.
|
|
s2 := newLabels(2)
|
|
appendSample(s2, 239) // OOO sample.
|
|
verifyOOOSamples(s2, 1)
|
|
|
|
// Similar for 180m.
|
|
s3 := newLabels(3)
|
|
appendSample(s3, 180) // OOO sample.
|
|
verifyOOOSamples(s3, 1)
|
|
|
|
// Now 179m is too old.
|
|
s4 := newLabels(4)
|
|
app := h.Appender(context.Background())
|
|
_, err = app.Append(0, s4, 179*time.Minute.Milliseconds(), float64(179))
|
|
require.Equal(t, storage.ErrTooOldSample, err)
|
|
require.NoError(t, app.Rollback())
|
|
verifyOOOSamples(s3, 1)
|
|
|
|
// Samples still go into in-order chunk for samples within
|
|
// appendable minValidTime.
|
|
s5 := newLabels(5)
|
|
appendSample(s5, 240)
|
|
verifyInOrderSamples(s5, 1)
|
|
}
|
|
|
|
func TestHeadMinOOOTimeUpdate(t *testing.T) {
|
|
dir := t.TempDir()
|
|
wal, err := wlog.NewSize(nil, nil, filepath.Join(dir, "wal"), 32768, wlog.CompressionSnappy)
|
|
require.NoError(t, err)
|
|
oooWlog, err := wlog.NewSize(nil, nil, filepath.Join(dir, wlog.WblDirName), 32768, wlog.CompressionSnappy)
|
|
require.NoError(t, err)
|
|
|
|
opts := DefaultHeadOptions()
|
|
opts.ChunkDirRoot = dir
|
|
opts.OutOfOrderTimeWindow.Store(10 * time.Minute.Milliseconds())
|
|
|
|
h, err := NewHead(nil, nil, wal, oooWlog, opts, nil)
|
|
require.NoError(t, err)
|
|
t.Cleanup(func() {
|
|
require.NoError(t, h.Close())
|
|
})
|
|
require.NoError(t, h.Init(0))
|
|
|
|
appendSample := func(ts int64) {
|
|
lbls := labels.FromStrings("foo", "bar")
|
|
app := h.Appender(context.Background())
|
|
_, err := app.Append(0, lbls, ts*time.Minute.Milliseconds(), float64(ts))
|
|
require.NoError(t, err)
|
|
require.NoError(t, app.Commit())
|
|
}
|
|
|
|
appendSample(300) // In-order sample.
|
|
|
|
require.Equal(t, int64(math.MaxInt64), h.MinOOOTime())
|
|
|
|
appendSample(295) // OOO sample.
|
|
require.Equal(t, 295*time.Minute.Milliseconds(), h.MinOOOTime())
|
|
|
|
// Allowed window for OOO is >=290, which is before the earliest ooo sample 295, so it gets set to the lower value.
|
|
require.NoError(t, h.truncateOOO(0, 1))
|
|
require.Equal(t, 290*time.Minute.Milliseconds(), h.MinOOOTime())
|
|
|
|
appendSample(310) // In-order sample.
|
|
appendSample(305) // OOO sample.
|
|
require.Equal(t, 290*time.Minute.Milliseconds(), h.MinOOOTime())
|
|
|
|
// Now the OOO sample 295 was not gc'ed yet. And allowed window for OOO is now >=300.
|
|
// So the lowest among them, 295, is set as minOOOTime.
|
|
require.NoError(t, h.truncateOOO(0, 2))
|
|
require.Equal(t, 295*time.Minute.Milliseconds(), h.MinOOOTime())
|
|
}
|
|
|
|
func TestGaugeHistogramWALAndChunkHeader(t *testing.T) {
|
|
l := labels.FromStrings("a", "b")
|
|
head, _ := newTestHead(t, 1000, wlog.CompressionNone, false)
|
|
t.Cleanup(func() {
|
|
require.NoError(t, head.Close())
|
|
})
|
|
require.NoError(t, head.Init(0))
|
|
|
|
ts := int64(0)
|
|
appendHistogram := func(h *histogram.Histogram) {
|
|
ts++
|
|
app := head.Appender(context.Background())
|
|
_, err := app.AppendHistogram(0, l, ts, h.Copy(), nil)
|
|
require.NoError(t, err)
|
|
require.NoError(t, app.Commit())
|
|
}
|
|
|
|
hists := tsdbutil.GenerateTestGaugeHistograms(5)
|
|
hists[0].CounterResetHint = histogram.UnknownCounterReset
|
|
appendHistogram(hists[0])
|
|
appendHistogram(hists[1])
|
|
appendHistogram(hists[2])
|
|
hists[3].CounterResetHint = histogram.UnknownCounterReset
|
|
appendHistogram(hists[3])
|
|
appendHistogram(hists[3])
|
|
appendHistogram(hists[4])
|
|
|
|
checkHeaders := func() {
|
|
head.mmapHeadChunks()
|
|
ms, _, err := head.getOrCreate(l.Hash(), l)
|
|
require.NoError(t, err)
|
|
require.Len(t, ms.mmappedChunks, 3)
|
|
expHeaders := []chunkenc.CounterResetHeader{
|
|
chunkenc.UnknownCounterReset,
|
|
chunkenc.GaugeType,
|
|
chunkenc.UnknownCounterReset,
|
|
chunkenc.GaugeType,
|
|
}
|
|
for i, mmapChunk := range ms.mmappedChunks {
|
|
chk, err := head.chunkDiskMapper.Chunk(mmapChunk.ref)
|
|
require.NoError(t, err)
|
|
require.Equal(t, expHeaders[i], chk.(*chunkenc.HistogramChunk).GetCounterResetHeader())
|
|
}
|
|
require.Equal(t, expHeaders[len(expHeaders)-1], ms.headChunks.chunk.(*chunkenc.HistogramChunk).GetCounterResetHeader())
|
|
}
|
|
checkHeaders()
|
|
|
|
recs := readTestWAL(t, head.wal.Dir())
|
|
require.Equal(t, []interface{}{
|
|
[]record.RefSeries{
|
|
{
|
|
Ref: 1,
|
|
Labels: labels.FromStrings("a", "b"),
|
|
},
|
|
},
|
|
[]record.RefHistogramSample{{Ref: 1, T: 1, H: hists[0]}},
|
|
[]record.RefHistogramSample{{Ref: 1, T: 2, H: hists[1]}},
|
|
[]record.RefHistogramSample{{Ref: 1, T: 3, H: hists[2]}},
|
|
[]record.RefHistogramSample{{Ref: 1, T: 4, H: hists[3]}},
|
|
[]record.RefHistogramSample{{Ref: 1, T: 5, H: hists[3]}},
|
|
[]record.RefHistogramSample{{Ref: 1, T: 6, H: hists[4]}},
|
|
}, recs)
|
|
|
|
// Restart Head without mmap chunks to expect the WAL replay to recognize gauge histograms.
|
|
require.NoError(t, head.Close())
|
|
require.NoError(t, os.RemoveAll(mmappedChunksDir(head.opts.ChunkDirRoot)))
|
|
|
|
w, err := wlog.NewSize(nil, nil, head.wal.Dir(), 32768, wlog.CompressionNone)
|
|
require.NoError(t, err)
|
|
head, err = NewHead(nil, nil, w, nil, head.opts, nil)
|
|
require.NoError(t, err)
|
|
require.NoError(t, head.Init(0))
|
|
|
|
checkHeaders()
|
|
}
|
|
|
|
func TestGaugeFloatHistogramWALAndChunkHeader(t *testing.T) {
|
|
l := labels.FromStrings("a", "b")
|
|
head, _ := newTestHead(t, 1000, wlog.CompressionNone, false)
|
|
t.Cleanup(func() {
|
|
require.NoError(t, head.Close())
|
|
})
|
|
require.NoError(t, head.Init(0))
|
|
|
|
ts := int64(0)
|
|
appendHistogram := func(h *histogram.FloatHistogram) {
|
|
ts++
|
|
app := head.Appender(context.Background())
|
|
_, err := app.AppendHistogram(0, l, ts, nil, h.Copy())
|
|
require.NoError(t, err)
|
|
require.NoError(t, app.Commit())
|
|
}
|
|
|
|
hists := tsdbutil.GenerateTestGaugeFloatHistograms(5)
|
|
hists[0].CounterResetHint = histogram.UnknownCounterReset
|
|
appendHistogram(hists[0])
|
|
appendHistogram(hists[1])
|
|
appendHistogram(hists[2])
|
|
hists[3].CounterResetHint = histogram.UnknownCounterReset
|
|
appendHistogram(hists[3])
|
|
appendHistogram(hists[3])
|
|
appendHistogram(hists[4])
|
|
|
|
checkHeaders := func() {
|
|
ms, _, err := head.getOrCreate(l.Hash(), l)
|
|
require.NoError(t, err)
|
|
head.mmapHeadChunks()
|
|
require.Len(t, ms.mmappedChunks, 3)
|
|
expHeaders := []chunkenc.CounterResetHeader{
|
|
chunkenc.UnknownCounterReset,
|
|
chunkenc.GaugeType,
|
|
chunkenc.UnknownCounterReset,
|
|
chunkenc.GaugeType,
|
|
}
|
|
for i, mmapChunk := range ms.mmappedChunks {
|
|
chk, err := head.chunkDiskMapper.Chunk(mmapChunk.ref)
|
|
require.NoError(t, err)
|
|
require.Equal(t, expHeaders[i], chk.(*chunkenc.FloatHistogramChunk).GetCounterResetHeader())
|
|
}
|
|
require.Equal(t, expHeaders[len(expHeaders)-1], ms.headChunks.chunk.(*chunkenc.FloatHistogramChunk).GetCounterResetHeader())
|
|
}
|
|
checkHeaders()
|
|
|
|
recs := readTestWAL(t, head.wal.Dir())
|
|
require.Equal(t, []interface{}{
|
|
[]record.RefSeries{
|
|
{
|
|
Ref: 1,
|
|
Labels: labels.FromStrings("a", "b"),
|
|
},
|
|
},
|
|
[]record.RefFloatHistogramSample{{Ref: 1, T: 1, FH: hists[0]}},
|
|
[]record.RefFloatHistogramSample{{Ref: 1, T: 2, FH: hists[1]}},
|
|
[]record.RefFloatHistogramSample{{Ref: 1, T: 3, FH: hists[2]}},
|
|
[]record.RefFloatHistogramSample{{Ref: 1, T: 4, FH: hists[3]}},
|
|
[]record.RefFloatHistogramSample{{Ref: 1, T: 5, FH: hists[3]}},
|
|
[]record.RefFloatHistogramSample{{Ref: 1, T: 6, FH: hists[4]}},
|
|
}, recs)
|
|
|
|
// Restart Head without mmap chunks to expect the WAL replay to recognize gauge histograms.
|
|
require.NoError(t, head.Close())
|
|
require.NoError(t, os.RemoveAll(mmappedChunksDir(head.opts.ChunkDirRoot)))
|
|
|
|
w, err := wlog.NewSize(nil, nil, head.wal.Dir(), 32768, wlog.CompressionNone)
|
|
require.NoError(t, err)
|
|
head, err = NewHead(nil, nil, w, nil, head.opts, nil)
|
|
require.NoError(t, err)
|
|
require.NoError(t, head.Init(0))
|
|
|
|
checkHeaders()
|
|
}
|
|
|
|
func TestSnapshotAheadOfWALError(t *testing.T) {
|
|
head, _ := newTestHead(t, 120*4, wlog.CompressionNone, false)
|
|
head.opts.EnableMemorySnapshotOnShutdown = true
|
|
// Add a sample to fill WAL.
|
|
app := head.Appender(context.Background())
|
|
_, err := app.Append(0, labels.FromStrings("foo", "bar"), 10, 10)
|
|
require.NoError(t, err)
|
|
require.NoError(t, app.Commit())
|
|
|
|
// Increment snapshot index to create sufficiently large difference.
|
|
for i := 0; i < 2; i++ {
|
|
_, err = head.wal.NextSegment()
|
|
require.NoError(t, err)
|
|
}
|
|
require.NoError(t, head.Close()) // This will create a snapshot.
|
|
|
|
_, idx, _, err := LastChunkSnapshot(head.opts.ChunkDirRoot)
|
|
require.NoError(t, err)
|
|
require.Equal(t, 2, idx)
|
|
|
|
// Restart the WAL while keeping the old snapshot. The new head is created manually in this case in order
|
|
// to keep using the same snapshot directory instead of a random one.
|
|
require.NoError(t, os.RemoveAll(head.wal.Dir()))
|
|
head.opts.EnableMemorySnapshotOnShutdown = false
|
|
w, _ := wlog.NewSize(nil, nil, head.wal.Dir(), 32768, wlog.CompressionNone)
|
|
head, err = NewHead(nil, nil, w, nil, head.opts, nil)
|
|
require.NoError(t, err)
|
|
// Add a sample to fill WAL.
|
|
app = head.Appender(context.Background())
|
|
_, err = app.Append(0, labels.FromStrings("foo", "bar"), 10, 10)
|
|
require.NoError(t, err)
|
|
require.NoError(t, app.Commit())
|
|
lastSegment, _, _ := w.LastSegmentAndOffset()
|
|
require.Equal(t, 0, lastSegment)
|
|
require.NoError(t, head.Close())
|
|
|
|
// New WAL is saved, but old snapshot still exists.
|
|
_, idx, _, err = LastChunkSnapshot(head.opts.ChunkDirRoot)
|
|
require.NoError(t, err)
|
|
require.Equal(t, 2, idx)
|
|
|
|
// Create new Head which should detect the incorrect index and delete the snapshot.
|
|
head.opts.EnableMemorySnapshotOnShutdown = true
|
|
w, _ = wlog.NewSize(nil, nil, head.wal.Dir(), 32768, wlog.CompressionNone)
|
|
head, err = NewHead(nil, nil, w, nil, head.opts, nil)
|
|
require.NoError(t, err)
|
|
require.NoError(t, head.Init(math.MinInt64))
|
|
|
|
// Verify that snapshot directory does not exist anymore.
|
|
_, _, _, err = LastChunkSnapshot(head.opts.ChunkDirRoot)
|
|
require.Equal(t, record.ErrNotFound, err)
|
|
|
|
require.NoError(t, head.Close())
|
|
}
|
|
|
|
func BenchmarkCuttingHeadHistogramChunks(b *testing.B) {
|
|
const (
|
|
numSamples = 50000
|
|
numBuckets = 100
|
|
)
|
|
samples := histogram.GenerateBigTestHistograms(numSamples, numBuckets)
|
|
|
|
h, _ := newTestHead(b, DefaultBlockDuration, wlog.CompressionNone, false)
|
|
defer func() {
|
|
require.NoError(b, h.Close())
|
|
}()
|
|
|
|
a := h.Appender(context.Background())
|
|
ts := time.Now().UnixMilli()
|
|
lbls := labels.FromStrings("foo", "bar")
|
|
|
|
b.ResetTimer()
|
|
|
|
for _, s := range samples {
|
|
_, err := a.AppendHistogram(0, lbls, ts, s, nil)
|
|
require.NoError(b, err)
|
|
}
|
|
}
|
|
|
|
func TestCuttingNewHeadChunks(t *testing.T) {
|
|
ctx := context.Background()
|
|
testCases := map[string]struct {
|
|
numTotalSamples int
|
|
timestampJitter bool
|
|
floatValFunc func(i int) float64
|
|
histValFunc func(i int) *histogram.Histogram
|
|
expectedChks []struct {
|
|
numSamples int
|
|
numBytes int
|
|
}
|
|
}{
|
|
"float samples": {
|
|
numTotalSamples: 180,
|
|
floatValFunc: func(i int) float64 {
|
|
return 1.
|
|
},
|
|
expectedChks: []struct {
|
|
numSamples int
|
|
numBytes int
|
|
}{
|
|
{numSamples: 120, numBytes: 46},
|
|
{numSamples: 60, numBytes: 32},
|
|
},
|
|
},
|
|
"large float samples": {
|
|
// Normally 120 samples would fit into a single chunk but these chunks violate the 1005 byte soft cap.
|
|
numTotalSamples: 120,
|
|
timestampJitter: true,
|
|
floatValFunc: func(i int) float64 {
|
|
// Flipping between these two make each sample val take at least 64 bits.
|
|
vals := []float64{math.MaxFloat64, 0x00}
|
|
return vals[i%len(vals)]
|
|
},
|
|
expectedChks: []struct {
|
|
numSamples int
|
|
numBytes int
|
|
}{
|
|
{99, 1008},
|
|
{21, 219},
|
|
},
|
|
},
|
|
"small histograms": {
|
|
numTotalSamples: 240,
|
|
histValFunc: func() func(i int) *histogram.Histogram {
|
|
hists := histogram.GenerateBigTestHistograms(240, 10)
|
|
return func(i int) *histogram.Histogram {
|
|
return hists[i]
|
|
}
|
|
}(),
|
|
expectedChks: []struct {
|
|
numSamples int
|
|
numBytes int
|
|
}{
|
|
{120, 1087},
|
|
{120, 1039},
|
|
},
|
|
},
|
|
"large histograms": {
|
|
numTotalSamples: 240,
|
|
histValFunc: func() func(i int) *histogram.Histogram {
|
|
hists := histogram.GenerateBigTestHistograms(240, 100)
|
|
return func(i int) *histogram.Histogram {
|
|
return hists[i]
|
|
}
|
|
}(),
|
|
expectedChks: []struct {
|
|
numSamples int
|
|
numBytes int
|
|
}{
|
|
{40, 896},
|
|
{40, 899},
|
|
{40, 896},
|
|
{30, 690},
|
|
{30, 691},
|
|
{30, 694},
|
|
{30, 693},
|
|
},
|
|
},
|
|
"really large histograms": {
|
|
// Really large histograms; each chunk can only contain a single histogram but we have a 10 sample minimum
|
|
// per chunk.
|
|
numTotalSamples: 11,
|
|
histValFunc: func() func(i int) *histogram.Histogram {
|
|
hists := histogram.GenerateBigTestHistograms(11, 100000)
|
|
return func(i int) *histogram.Histogram {
|
|
return hists[i]
|
|
}
|
|
}(),
|
|
expectedChks: []struct {
|
|
numSamples int
|
|
numBytes int
|
|
}{
|
|
{10, 200103},
|
|
{1, 87540},
|
|
},
|
|
},
|
|
}
|
|
for testName, tc := range testCases {
|
|
t.Run(testName, func(t *testing.T) {
|
|
h, _ := newTestHead(t, DefaultBlockDuration, wlog.CompressionNone, false)
|
|
defer func() {
|
|
require.NoError(t, h.Close())
|
|
}()
|
|
|
|
a := h.Appender(context.Background())
|
|
|
|
ts := int64(10000)
|
|
lbls := labels.FromStrings("foo", "bar")
|
|
jitter := []int64{0, 1} // A bit of jitter to prevent dod=0.
|
|
|
|
for i := 0; i < tc.numTotalSamples; i++ {
|
|
if tc.floatValFunc != nil {
|
|
_, err := a.Append(0, lbls, ts, tc.floatValFunc(i))
|
|
require.NoError(t, err)
|
|
} else if tc.histValFunc != nil {
|
|
_, err := a.AppendHistogram(0, lbls, ts, tc.histValFunc(i), nil)
|
|
require.NoError(t, err)
|
|
}
|
|
|
|
ts += int64(60 * time.Second / time.Millisecond)
|
|
if tc.timestampJitter {
|
|
ts += jitter[i%len(jitter)]
|
|
}
|
|
}
|
|
|
|
require.NoError(t, a.Commit())
|
|
|
|
idxReader, err := h.Index()
|
|
require.NoError(t, err)
|
|
|
|
chkReader, err := h.Chunks()
|
|
require.NoError(t, err)
|
|
|
|
p, err := idxReader.Postings(ctx, "foo", "bar")
|
|
require.NoError(t, err)
|
|
|
|
var lblBuilder labels.ScratchBuilder
|
|
|
|
for p.Next() {
|
|
sRef := p.At()
|
|
|
|
chkMetas := make([]chunks.Meta, len(tc.expectedChks))
|
|
require.NoError(t, idxReader.Series(sRef, &lblBuilder, &chkMetas))
|
|
|
|
require.Len(t, chkMetas, len(tc.expectedChks))
|
|
|
|
for i, expected := range tc.expectedChks {
|
|
chk, iterable, err := chkReader.ChunkOrIterable(chkMetas[i])
|
|
require.NoError(t, err)
|
|
require.Nil(t, iterable)
|
|
|
|
require.Equal(t, expected.numSamples, chk.NumSamples())
|
|
require.Len(t, chk.Bytes(), expected.numBytes)
|
|
}
|
|
}
|
|
})
|
|
}
|
|
}
|
|
|
|
// TestHeadDetectsDuplcateSampleAtSizeLimit tests a regression where a duplicate sample
|
|
// is appended to the head, right when the head chunk is at the size limit.
|
|
// The test adds all samples as duplicate, thus expecting that the result has
|
|
// exactly half of the samples.
|
|
func TestHeadDetectsDuplicateSampleAtSizeLimit(t *testing.T) {
|
|
numSamples := 1000
|
|
baseTS := int64(1695209650)
|
|
|
|
h, _ := newTestHead(t, DefaultBlockDuration, wlog.CompressionNone, false)
|
|
defer func() {
|
|
require.NoError(t, h.Close())
|
|
}()
|
|
|
|
a := h.Appender(context.Background())
|
|
var err error
|
|
vals := []float64{math.MaxFloat64, 0x00} // Use the worst case scenario for the XOR encoding. Otherwise we hit the sample limit before the size limit.
|
|
for i := 0; i < numSamples; i++ {
|
|
ts := baseTS + int64(i/2)*10000
|
|
a.Append(0, labels.FromStrings("foo", "bar"), ts, vals[(i/2)%len(vals)])
|
|
err = a.Commit()
|
|
require.NoError(t, err)
|
|
a = h.Appender(context.Background())
|
|
}
|
|
|
|
indexReader, err := h.Index()
|
|
require.NoError(t, err)
|
|
|
|
var (
|
|
chunks []chunks.Meta
|
|
builder labels.ScratchBuilder
|
|
)
|
|
require.NoError(t, indexReader.Series(1, &builder, &chunks))
|
|
|
|
chunkReader, err := h.Chunks()
|
|
require.NoError(t, err)
|
|
|
|
storedSampleCount := 0
|
|
for _, chunkMeta := range chunks {
|
|
chunk, iterable, err := chunkReader.ChunkOrIterable(chunkMeta)
|
|
require.NoError(t, err)
|
|
require.Nil(t, iterable)
|
|
storedSampleCount += chunk.NumSamples()
|
|
}
|
|
|
|
require.Equal(t, numSamples/2, storedSampleCount)
|
|
}
|
|
|
|
func TestWALSampleAndExemplarOrder(t *testing.T) {
|
|
lbls := labels.FromStrings("foo", "bar")
|
|
testcases := map[string]struct {
|
|
appendF func(app storage.Appender, ts int64) (storage.SeriesRef, error)
|
|
expectedType reflect.Type
|
|
}{
|
|
"float sample": {
|
|
appendF: func(app storage.Appender, ts int64) (storage.SeriesRef, error) {
|
|
return app.Append(0, lbls, ts, 1.0)
|
|
},
|
|
expectedType: reflect.TypeOf([]record.RefSample{}),
|
|
},
|
|
"histogram sample": {
|
|
appendF: func(app storage.Appender, ts int64) (storage.SeriesRef, error) {
|
|
return app.AppendHistogram(0, lbls, ts, tsdbutil.GenerateTestHistogram(1), nil)
|
|
},
|
|
expectedType: reflect.TypeOf([]record.RefHistogramSample{}),
|
|
},
|
|
"float histogram sample": {
|
|
appendF: func(app storage.Appender, ts int64) (storage.SeriesRef, error) {
|
|
return app.AppendHistogram(0, lbls, ts, nil, tsdbutil.GenerateTestFloatHistogram(1))
|
|
},
|
|
expectedType: reflect.TypeOf([]record.RefFloatHistogramSample{}),
|
|
},
|
|
}
|
|
|
|
for testName, tc := range testcases {
|
|
t.Run(testName, func(t *testing.T) {
|
|
h, w := newTestHead(t, 1000, wlog.CompressionNone, false)
|
|
defer func() {
|
|
require.NoError(t, h.Close())
|
|
}()
|
|
|
|
app := h.Appender(context.Background())
|
|
ref, err := tc.appendF(app, 10)
|
|
require.NoError(t, err)
|
|
app.AppendExemplar(ref, lbls, exemplar.Exemplar{Value: 1.0, Ts: 5})
|
|
|
|
app.Commit()
|
|
|
|
recs := readTestWAL(t, w.Dir())
|
|
require.Len(t, recs, 3)
|
|
_, ok := recs[0].([]record.RefSeries)
|
|
require.True(t, ok, "expected first record to be a RefSeries")
|
|
actualType := reflect.TypeOf(recs[1])
|
|
require.Equal(t, tc.expectedType, actualType, "expected second record to be a %s", tc.expectedType)
|
|
_, ok = recs[2].([]record.RefExemplar)
|
|
require.True(t, ok, "expected third record to be a RefExemplar")
|
|
})
|
|
}
|
|
}
|
|
|
|
// TestHeadCompactionWhileAppendAndCommitExemplar simulates a use case where
|
|
// a series is removed from the head while an exemplar is being appended to it.
|
|
// This can happen in theory by compacting the head at the right time due to
|
|
// a series being idle.
|
|
// The test cheats a little bit by not appending a sample with the exemplar.
|
|
// If you also add a sample and run Truncate in a concurrent goroutine and run
|
|
// the test around a million(!) times, you can get
|
|
// `unknown HeadSeriesRef when trying to add exemplar: 1` error on push.
|
|
// It is likely that running the test for much longer and with more time variations
|
|
// would trigger the
|
|
// `signal SIGSEGV: segmentation violation code=0x1 addr=0x20 pc=0xbb03d1`
|
|
// panic, that we have seen in the wild once.
|
|
func TestHeadCompactionWhileAppendAndCommitExemplar(t *testing.T) {
|
|
h, _ := newTestHead(t, DefaultBlockDuration, wlog.CompressionNone, false)
|
|
app := h.Appender(context.Background())
|
|
lbls := labels.FromStrings("foo", "bar")
|
|
ref, err := app.Append(0, lbls, 1, 1)
|
|
require.NoError(t, err)
|
|
app.Commit()
|
|
// Not adding a sample here to trigger the fault.
|
|
app = h.Appender(context.Background())
|
|
_, err = app.AppendExemplar(ref, lbls, exemplar.Exemplar{Value: 1, Ts: 20})
|
|
require.NoError(t, err)
|
|
h.Truncate(10)
|
|
app.Commit()
|
|
h.Close()
|
|
}
|
|
|
|
func labelsWithHashCollision() (labels.Labels, labels.Labels) {
|
|
// These two series have the same XXHash; thanks to https://github.com/pstibrany/labels_hash_collisions
|
|
ls1 := labels.FromStrings("__name__", "metric", "lbl1", "value", "lbl2", "l6CQ5y")
|
|
ls2 := labels.FromStrings("__name__", "metric", "lbl1", "value", "lbl2", "v7uDlF")
|
|
|
|
if ls1.Hash() != ls2.Hash() {
|
|
// These ones are the same when using -tags stringlabels
|
|
ls1 = labels.FromStrings("__name__", "metric", "lbl", "HFnEaGl")
|
|
ls2 = labels.FromStrings("__name__", "metric", "lbl", "RqcXatm")
|
|
}
|
|
|
|
if ls1.Hash() != ls2.Hash() {
|
|
panic("This code needs to be updated: find new labels with colliding hash values.")
|
|
}
|
|
|
|
return ls1, ls2
|
|
}
|
|
|
|
// stripeSeriesWithCollidingSeries returns a stripeSeries with two memSeries having the same, colliding, hash.
|
|
func stripeSeriesWithCollidingSeries(t *testing.T) (*stripeSeries, *memSeries, *memSeries) {
|
|
t.Helper()
|
|
|
|
lbls1, lbls2 := labelsWithHashCollision()
|
|
ms1 := memSeries{
|
|
lset: lbls1,
|
|
}
|
|
ms2 := memSeries{
|
|
lset: lbls2,
|
|
}
|
|
hash := lbls1.Hash()
|
|
s := newStripeSeries(1, noopSeriesLifecycleCallback{})
|
|
|
|
got, created, err := s.getOrSet(hash, lbls1, func() *memSeries {
|
|
return &ms1
|
|
})
|
|
require.NoError(t, err)
|
|
require.True(t, created)
|
|
require.Same(t, &ms1, got)
|
|
|
|
// Add a conflicting series
|
|
got, created, err = s.getOrSet(hash, lbls2, func() *memSeries {
|
|
return &ms2
|
|
})
|
|
require.NoError(t, err)
|
|
require.True(t, created)
|
|
require.Same(t, &ms2, got)
|
|
|
|
return s, &ms1, &ms2
|
|
}
|
|
|
|
func TestStripeSeries_getOrSet(t *testing.T) {
|
|
s, ms1, ms2 := stripeSeriesWithCollidingSeries(t)
|
|
hash := ms1.lset.Hash()
|
|
|
|
// Verify that we can get both of the series despite the hash collision
|
|
got := s.getByHash(hash, ms1.lset)
|
|
require.Same(t, ms1, got)
|
|
got = s.getByHash(hash, ms2.lset)
|
|
require.Same(t, ms2, got)
|
|
}
|
|
|
|
func TestStripeSeries_gc(t *testing.T) {
|
|
s, ms1, ms2 := stripeSeriesWithCollidingSeries(t)
|
|
hash := ms1.lset.Hash()
|
|
|
|
s.gc(0, 0)
|
|
|
|
// Verify that we can get neither ms1 nor ms2 after gc-ing corresponding series
|
|
got := s.getByHash(hash, ms1.lset)
|
|
require.Nil(t, got)
|
|
got = s.getByHash(hash, ms2.lset)
|
|
require.Nil(t, got)
|
|
}
|
|
|
|
func TestPostingsCardinalityStats(t *testing.T) {
|
|
head := &Head{postings: index.NewMemPostings()}
|
|
head.postings.Add(1, labels.FromStrings(labels.MetricName, "t", "n", "v1"))
|
|
head.postings.Add(2, labels.FromStrings(labels.MetricName, "t", "n", "v2"))
|
|
|
|
statsForMetricName := head.PostingsCardinalityStats(labels.MetricName, 10)
|
|
head.postings.Add(3, labels.FromStrings(labels.MetricName, "t", "n", "v3"))
|
|
// Using cache.
|
|
require.Equal(t, statsForMetricName, head.PostingsCardinalityStats(labels.MetricName, 10))
|
|
|
|
statsForSomeLabel := head.PostingsCardinalityStats("n", 10)
|
|
// Cache should be evicted because of the change of label name.
|
|
require.NotEqual(t, statsForMetricName, statsForSomeLabel)
|
|
head.postings.Add(4, labels.FromStrings(labels.MetricName, "t", "n", "v4"))
|
|
// Using cache.
|
|
require.Equal(t, statsForSomeLabel, head.PostingsCardinalityStats("n", 10))
|
|
// Cache should be evicted because of the change of limit parameter.
|
|
statsForSomeLabel1 := head.PostingsCardinalityStats("n", 1)
|
|
require.NotEqual(t, statsForSomeLabel1, statsForSomeLabel)
|
|
// Using cache.
|
|
require.Equal(t, statsForSomeLabel1, head.PostingsCardinalityStats("n", 1))
|
|
}
|
|
|
|
func TestHeadAppender_AppendCTZeroSample(t *testing.T) {
|
|
type appendableSamples struct {
|
|
ts int64
|
|
val float64
|
|
ct int64
|
|
}
|
|
for _, tc := range []struct {
|
|
name string
|
|
appendableSamples []appendableSamples
|
|
expectedSamples []model.Sample
|
|
}{
|
|
{
|
|
name: "In order ct+normal sample",
|
|
appendableSamples: []appendableSamples{
|
|
{ts: 100, val: 10, ct: 1},
|
|
},
|
|
expectedSamples: []model.Sample{
|
|
{Timestamp: 1, Value: 0},
|
|
{Timestamp: 100, Value: 10},
|
|
},
|
|
},
|
|
{
|
|
name: "Consecutive appends with same ct ignore ct",
|
|
appendableSamples: []appendableSamples{
|
|
{ts: 100, val: 10, ct: 1},
|
|
{ts: 101, val: 10, ct: 1},
|
|
},
|
|
expectedSamples: []model.Sample{
|
|
{Timestamp: 1, Value: 0},
|
|
{Timestamp: 100, Value: 10},
|
|
{Timestamp: 101, Value: 10},
|
|
},
|
|
},
|
|
{
|
|
name: "Consecutive appends with newer ct do not ignore ct",
|
|
appendableSamples: []appendableSamples{
|
|
{ts: 100, val: 10, ct: 1},
|
|
{ts: 102, val: 10, ct: 101},
|
|
},
|
|
expectedSamples: []model.Sample{
|
|
{Timestamp: 1, Value: 0},
|
|
{Timestamp: 100, Value: 10},
|
|
{Timestamp: 101, Value: 0},
|
|
{Timestamp: 102, Value: 10},
|
|
},
|
|
},
|
|
{
|
|
name: "CT equals to previous sample timestamp is ignored",
|
|
appendableSamples: []appendableSamples{
|
|
{ts: 100, val: 10, ct: 1},
|
|
{ts: 101, val: 10, ct: 100},
|
|
},
|
|
expectedSamples: []model.Sample{
|
|
{Timestamp: 1, Value: 0},
|
|
{Timestamp: 100, Value: 10},
|
|
{Timestamp: 101, Value: 10},
|
|
},
|
|
},
|
|
} {
|
|
h, _ := newTestHead(t, DefaultBlockDuration, wlog.CompressionNone, false)
|
|
defer func() {
|
|
require.NoError(t, h.Close())
|
|
}()
|
|
a := h.Appender(context.Background())
|
|
lbls := labels.FromStrings("foo", "bar")
|
|
for _, sample := range tc.appendableSamples {
|
|
_, err := a.AppendCTZeroSample(0, lbls, sample.ts, sample.ct)
|
|
require.NoError(t, err)
|
|
_, err = a.Append(0, lbls, sample.ts, sample.val)
|
|
require.NoError(t, err)
|
|
}
|
|
require.NoError(t, a.Commit())
|
|
|
|
q, err := NewBlockQuerier(h, math.MinInt64, math.MaxInt64)
|
|
require.NoError(t, err)
|
|
ss := q.Select(context.Background(), false, nil, labels.MustNewMatcher(labels.MatchEqual, "foo", "bar"))
|
|
require.True(t, ss.Next())
|
|
s := ss.At()
|
|
require.False(t, ss.Next())
|
|
it := s.Iterator(nil)
|
|
for _, sample := range tc.expectedSamples {
|
|
require.Equal(t, chunkenc.ValFloat, it.Next())
|
|
timestamp, value := it.At()
|
|
require.Equal(t, sample.Timestamp, model.Time(timestamp))
|
|
require.Equal(t, sample.Value, model.SampleValue(value))
|
|
}
|
|
require.Equal(t, chunkenc.ValNone, it.Next())
|
|
}
|
|
}
|