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prometheus/tsdb/querier_test.go
zenador 69edd8709b
Add warnings (and annotations) to PromQL query results (#12152) 
Return annotations (warnings and infos) from PromQL queries

This generalizes the warnings we have already used before (but only for problems with remote read) as "annotations".

Annotations can be warnings or infos (the latter could be false positives). We do not treat them different in the API for now and return them all as "warnings". It would be easy to distinguish them and return infos separately, should that appear useful in the future.

The new annotations are then used to create a lot of warnings or infos during PromQL evaluations. Partially these are things we have wanted for a long time (e.g. inform the user that they have applied `rate` to a metric that doesn't look like a counter), but the new native histograms have created even more needs for those annotations (e.g. if a query tries to aggregate float numbers with histograms).

The annotations added here are not yet complete. A prominent example would be a warning about a range too short for a rate calculation. But such a warnings is more tricky to create with good fidelity and we will tackle it later.

Another TODO is to take annotations into account when evaluating recording rules.

---------

Signed-off-by: Jeanette Tan <jeanette.tan@grafana.com>
2023-09-14 18:57:31 +02:00

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// Copyright 2017 The Prometheus Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// nolint:revive // Many unsued function arguments in this file by design.
package tsdb
import (
"context"
"fmt"
"math"
"math/rand"
"path/filepath"
"sort"
"strconv"
"sync"
"testing"
"time"
"github.com/oklog/ulid"
"github.com/pkg/errors"
"github.com/stretchr/testify/require"
"github.com/prometheus/prometheus/model/histogram"
"github.com/prometheus/prometheus/model/labels"
"github.com/prometheus/prometheus/storage"
"github.com/prometheus/prometheus/tsdb/chunkenc"
"github.com/prometheus/prometheus/tsdb/chunks"
"github.com/prometheus/prometheus/tsdb/index"
"github.com/prometheus/prometheus/tsdb/tombstones"
"github.com/prometheus/prometheus/tsdb/tsdbutil"
"github.com/prometheus/prometheus/util/annotations"
)
// TODO(bwplotka): Replace those mocks with remote.concreteSeriesSet.
type mockSeriesSet struct {
next func() bool
series func() storage.Series
ws func() annotations.Annotations
err func() error
}
func (m *mockSeriesSet) Next() bool { return m.next() }
func (m *mockSeriesSet) At() storage.Series { return m.series() }
func (m *mockSeriesSet) Err() error { return m.err() }
func (m *mockSeriesSet) Warnings() annotations.Annotations { return m.ws() }
func newMockSeriesSet(list []storage.Series) *mockSeriesSet {
i := -1
return &mockSeriesSet{
next: func() bool {
i++
return i < len(list)
},
series: func() storage.Series {
return list[i]
},
err: func() error { return nil },
ws: func() annotations.Annotations { return nil },
}
}
type mockChunkSeriesSet struct {
next func() bool
series func() storage.ChunkSeries
ws func() annotations.Annotations
err func() error
}
func (m *mockChunkSeriesSet) Next() bool { return m.next() }
func (m *mockChunkSeriesSet) At() storage.ChunkSeries { return m.series() }
func (m *mockChunkSeriesSet) Err() error { return m.err() }
func (m *mockChunkSeriesSet) Warnings() annotations.Annotations { return m.ws() }
func newMockChunkSeriesSet(list []storage.ChunkSeries) *mockChunkSeriesSet {
i := -1
return &mockChunkSeriesSet{
next: func() bool {
i++
return i < len(list)
},
series: func() storage.ChunkSeries {
return list[i]
},
err: func() error { return nil },
ws: func() annotations.Annotations { return nil },
}
}
type seriesSamples struct {
lset map[string]string
chunks [][]sample
}
// Index: labels -> postings -> chunkMetas -> chunkRef
// ChunkReader: ref -> vals
func createIdxChkReaders(t *testing.T, tc []seriesSamples) (IndexReader, ChunkReader, int64, int64) {
sort.Slice(tc, func(i, j int) bool {
return labels.Compare(labels.FromMap(tc[i].lset), labels.FromMap(tc[i].lset)) < 0
})
postings := index.NewMemPostings()
chkReader := mockChunkReader(make(map[chunks.ChunkRef]chunkenc.Chunk))
lblIdx := make(map[string]map[string]struct{})
mi := newMockIndex()
blockMint := int64(math.MaxInt64)
blockMaxt := int64(math.MinInt64)
var chunkRef chunks.ChunkRef
for i, s := range tc {
i++ // 0 is not a valid posting.
metas := make([]chunks.Meta, 0, len(s.chunks))
for _, chk := range s.chunks {
if chk[0].t < blockMint {
blockMint = chk[0].t
}
if chk[len(chk)-1].t > blockMaxt {
blockMaxt = chk[len(chk)-1].t
}
metas = append(metas, chunks.Meta{
MinTime: chk[0].t,
MaxTime: chk[len(chk)-1].t,
Ref: chunkRef,
})
chunk := chunkenc.NewXORChunk()
app, _ := chunk.Appender()
for _, smpl := range chk {
app.Append(smpl.t, smpl.f)
}
chkReader[chunkRef] = chunk
chunkRef++
}
ls := labels.FromMap(s.lset)
require.NoError(t, mi.AddSeries(storage.SeriesRef(i), ls, metas...))
postings.Add(storage.SeriesRef(i), ls)
ls.Range(func(l labels.Label) {
vs, present := lblIdx[l.Name]
if !present {
vs = map[string]struct{}{}
lblIdx[l.Name] = vs
}
vs[l.Value] = struct{}{}
})
}
require.NoError(t, postings.Iter(func(l labels.Label, p index.Postings) error {
return mi.WritePostings(l.Name, l.Value, p)
}))
return mi, chkReader, blockMint, blockMaxt
}
type blockQuerierTestCase struct {
mint, maxt int64
ms []*labels.Matcher
hints *storage.SelectHints
exp storage.SeriesSet
expChks storage.ChunkSeriesSet
}
func testBlockQuerier(t *testing.T, c blockQuerierTestCase, ir IndexReader, cr ChunkReader, stones *tombstones.MemTombstones) {
t.Run("sample", func(t *testing.T) {
q := blockQuerier{
blockBaseQuerier: &blockBaseQuerier{
index: ir,
chunks: cr,
tombstones: stones,
mint: c.mint,
maxt: c.maxt,
},
}
res := q.Select(context.Background(), false, c.hints, c.ms...)
defer func() { require.NoError(t, q.Close()) }()
for {
eok, rok := c.exp.Next(), res.Next()
require.Equal(t, eok, rok)
if !eok {
require.Equal(t, 0, len(res.Warnings()))
break
}
sexp := c.exp.At()
sres := res.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, res.Err())
})
t.Run("chunk", func(t *testing.T) {
q := blockChunkQuerier{
blockBaseQuerier: &blockBaseQuerier{
index: ir,
chunks: cr,
tombstones: stones,
mint: c.mint,
maxt: c.maxt,
},
}
res := q.Select(context.Background(), false, c.hints, c.ms...)
defer func() { require.NoError(t, q.Close()) }()
for {
eok, rok := c.expChks.Next(), res.Next()
require.Equal(t, eok, rok)
if !eok {
require.Equal(t, 0, len(res.Warnings()))
break
}
sexpChks := c.expChks.At()
sres := res.At()
require.Equal(t, sexpChks.Labels(), sres.Labels())
chksExp, errExp := storage.ExpandChunks(sexpChks.Iterator(nil))
rmChunkRefs(chksExp)
chksRes, errRes := storage.ExpandChunks(sres.Iterator(nil))
rmChunkRefs(chksRes)
require.Equal(t, errExp, errRes)
require.Equal(t, len(chksExp), len(chksRes))
var exp, act [][]chunks.Sample
for i := range chksExp {
samples, err := storage.ExpandSamples(chksExp[i].Chunk.Iterator(nil), nil)
require.NoError(t, err)
exp = append(exp, samples)
samples, err = storage.ExpandSamples(chksRes[i].Chunk.Iterator(nil), nil)
require.NoError(t, err)
act = append(act, samples)
}
require.Equal(t, exp, act)
}
require.NoError(t, res.Err())
})
}
func TestBlockQuerier(t *testing.T) {
for _, c := range []blockQuerierTestCase{
{
mint: 0,
maxt: 0,
ms: []*labels.Matcher{},
exp: newMockSeriesSet([]storage.Series{}),
expChks: newMockChunkSeriesSet([]storage.ChunkSeries{}),
},
{
mint: 0,
maxt: 0,
ms: []*labels.Matcher{labels.MustNewMatcher(labels.MatchEqual, "a", "a")},
exp: newMockSeriesSet([]storage.Series{}),
expChks: newMockChunkSeriesSet([]storage.ChunkSeries{}),
},
{
mint: 1,
maxt: 0,
ms: []*labels.Matcher{labels.MustNewMatcher(labels.MatchEqual, "a", "a")},
exp: newMockSeriesSet([]storage.Series{}),
expChks: newMockChunkSeriesSet([]storage.ChunkSeries{}),
},
{
mint: math.MinInt64,
maxt: math.MaxInt64,
ms: []*labels.Matcher{labels.MustNewMatcher(labels.MatchEqual, "a", "x")},
exp: newMockSeriesSet([]storage.Series{}),
expChks: newMockChunkSeriesSet([]storage.ChunkSeries{}),
},
{
mint: math.MinInt64,
maxt: math.MaxInt64,
ms: []*labels.Matcher{labels.MustNewMatcher(labels.MatchRegexp, "a", ".*")},
exp: newMockSeriesSet([]storage.Series{
storage.NewListSeries(labels.FromStrings("a", "a"),
[]chunks.Sample{sample{1, 2, nil, nil}, sample{2, 3, nil, nil}, sample{3, 4, nil, nil}, sample{5, 2, nil, nil}, sample{6, 3, nil, nil}, sample{7, 4, nil, nil}},
),
storage.NewListSeries(labels.FromStrings("a", "a", "b", "b"),
[]chunks.Sample{sample{1, 1, nil, nil}, sample{2, 2, nil, nil}, sample{3, 3, nil, nil}, sample{5, 3, nil, nil}, sample{6, 6, nil, nil}},
),
storage.NewListSeries(labels.FromStrings("b", "b"),
[]chunks.Sample{sample{1, 3, nil, nil}, sample{2, 2, nil, nil}, sample{3, 6, nil, nil}, sample{5, 1, nil, nil}, sample{6, 7, nil, nil}, sample{7, 2, nil, nil}},
),
}),
expChks: newMockChunkSeriesSet([]storage.ChunkSeries{
storage.NewListChunkSeriesFromSamples(labels.FromStrings("a", "a"),
[]chunks.Sample{sample{1, 2, nil, nil}, sample{2, 3, nil, nil}, sample{3, 4, nil, nil}}, []chunks.Sample{sample{5, 2, nil, nil}, sample{6, 3, nil, nil}, sample{7, 4, nil, nil}},
),
storage.NewListChunkSeriesFromSamples(labels.FromStrings("a", "a", "b", "b"),
[]chunks.Sample{sample{1, 1, nil, nil}, sample{2, 2, nil, nil}, sample{3, 3, nil, nil}}, []chunks.Sample{sample{5, 3, nil, nil}, sample{6, 6, nil, nil}},
),
storage.NewListChunkSeriesFromSamples(labels.FromStrings("b", "b"),
[]chunks.Sample{sample{1, 3, nil, nil}, sample{2, 2, nil, nil}, sample{3, 6, nil, nil}}, []chunks.Sample{sample{5, 1, nil, nil}, sample{6, 7, nil, nil}, sample{7, 2, nil, nil}},
),
}),
},
{
mint: 2,
maxt: 6,
ms: []*labels.Matcher{labels.MustNewMatcher(labels.MatchEqual, "a", "a")},
exp: newMockSeriesSet([]storage.Series{
storage.NewListSeries(labels.FromStrings("a", "a"),
[]chunks.Sample{sample{2, 3, nil, nil}, sample{3, 4, nil, nil}, sample{5, 2, nil, nil}, sample{6, 3, nil, nil}},
),
storage.NewListSeries(labels.FromStrings("a", "a", "b", "b"),
[]chunks.Sample{sample{2, 2, nil, nil}, sample{3, 3, nil, nil}, sample{5, 3, nil, nil}, sample{6, 6, nil, nil}},
),
}),
expChks: newMockChunkSeriesSet([]storage.ChunkSeries{
storage.NewListChunkSeriesFromSamples(labels.FromStrings("a", "a"),
[]chunks.Sample{sample{2, 3, nil, nil}, sample{3, 4, nil, nil}}, []chunks.Sample{sample{5, 2, nil, nil}, sample{6, 3, nil, nil}},
),
storage.NewListChunkSeriesFromSamples(labels.FromStrings("a", "a", "b", "b"),
[]chunks.Sample{sample{2, 2, nil, nil}, sample{3, 3, nil, nil}}, []chunks.Sample{sample{5, 3, nil, nil}, sample{6, 6, nil, nil}},
),
}),
},
{
// This test runs a query disabling trimming. All chunks containing at least 1 sample within the queried
// time range will be returned.
mint: 2,
maxt: 6,
hints: &storage.SelectHints{Start: 2, End: 6, DisableTrimming: true},
ms: []*labels.Matcher{labels.MustNewMatcher(labels.MatchEqual, "a", "a")},
exp: newMockSeriesSet([]storage.Series{
storage.NewListSeries(labels.FromStrings("a", "a"),
[]chunks.Sample{sample{1, 2, nil, nil}, sample{2, 3, nil, nil}, sample{3, 4, nil, nil}, sample{5, 2, nil, nil}, sample{6, 3, nil, nil}, sample{7, 4, nil, nil}},
),
storage.NewListSeries(labels.FromStrings("a", "a", "b", "b"),
[]chunks.Sample{sample{1, 1, nil, nil}, sample{2, 2, nil, nil}, sample{3, 3, nil, nil}, sample{5, 3, nil, nil}, sample{6, 6, nil, nil}},
),
}),
expChks: newMockChunkSeriesSet([]storage.ChunkSeries{
storage.NewListChunkSeriesFromSamples(labels.FromStrings("a", "a"),
[]chunks.Sample{sample{1, 2, nil, nil}, sample{2, 3, nil, nil}, sample{3, 4, nil, nil}},
[]chunks.Sample{sample{5, 2, nil, nil}, sample{6, 3, nil, nil}, sample{7, 4, nil, nil}},
),
storage.NewListChunkSeriesFromSamples(labels.FromStrings("a", "a", "b", "b"),
[]chunks.Sample{sample{1, 1, nil, nil}, sample{2, 2, nil, nil}, sample{3, 3, nil, nil}},
[]chunks.Sample{sample{5, 3, nil, nil}, sample{6, 6, nil, nil}},
),
}),
},
{
// This test runs a query disabling trimming. All chunks containing at least 1 sample within the queried
// time range will be returned.
mint: 5,
maxt: 6,
hints: &storage.SelectHints{Start: 5, End: 6, DisableTrimming: true},
ms: []*labels.Matcher{labels.MustNewMatcher(labels.MatchEqual, "a", "a")},
exp: newMockSeriesSet([]storage.Series{
storage.NewListSeries(labels.FromStrings("a", "a"),
[]chunks.Sample{sample{5, 2, nil, nil}, sample{6, 3, nil, nil}, sample{7, 4, nil, nil}},
),
storage.NewListSeries(labels.FromStrings("a", "a", "b", "b"),
[]chunks.Sample{sample{5, 3, nil, nil}, sample{6, 6, nil, nil}},
),
}),
expChks: newMockChunkSeriesSet([]storage.ChunkSeries{
storage.NewListChunkSeriesFromSamples(labels.FromStrings("a", "a"),
[]chunks.Sample{sample{5, 2, nil, nil}, sample{6, 3, nil, nil}, sample{7, 4, nil, nil}},
),
storage.NewListChunkSeriesFromSamples(labels.FromStrings("a", "a", "b", "b"),
[]chunks.Sample{sample{5, 3, nil, nil}, sample{6, 6, nil, nil}},
),
}),
},
} {
t.Run("", func(t *testing.T) {
ir, cr, _, _ := createIdxChkReaders(t, testData)
testBlockQuerier(t, c, ir, cr, tombstones.NewMemTombstones())
})
}
}
func TestBlockQuerier_AgainstHeadWithOpenChunks(t *testing.T) {
for _, c := range []blockQuerierTestCase{
{
mint: 0,
maxt: 0,
ms: []*labels.Matcher{},
exp: newMockSeriesSet([]storage.Series{}),
expChks: newMockChunkSeriesSet([]storage.ChunkSeries{}),
},
{
mint: 0,
maxt: 0,
ms: []*labels.Matcher{labels.MustNewMatcher(labels.MatchEqual, "a", "a")},
exp: newMockSeriesSet([]storage.Series{}),
expChks: newMockChunkSeriesSet([]storage.ChunkSeries{}),
},
{
mint: 1,
maxt: 0,
ms: []*labels.Matcher{labels.MustNewMatcher(labels.MatchEqual, "a", "a")},
exp: newMockSeriesSet([]storage.Series{}),
expChks: newMockChunkSeriesSet([]storage.ChunkSeries{}),
},
{
mint: math.MinInt64,
maxt: math.MaxInt64,
ms: []*labels.Matcher{labels.MustNewMatcher(labels.MatchEqual, "a", "x")},
exp: newMockSeriesSet([]storage.Series{}),
expChks: newMockChunkSeriesSet([]storage.ChunkSeries{}),
},
{
mint: math.MinInt64,
maxt: math.MaxInt64,
ms: []*labels.Matcher{labels.MustNewMatcher(labels.MatchRegexp, "a", ".*")},
exp: newMockSeriesSet([]storage.Series{
storage.NewListSeries(labels.FromStrings("a", "a"),
[]chunks.Sample{sample{1, 2, nil, nil}, sample{2, 3, nil, nil}, sample{3, 4, nil, nil}, sample{5, 2, nil, nil}, sample{6, 3, nil, nil}, sample{7, 4, nil, nil}},
),
storage.NewListSeries(labels.FromStrings("a", "a", "b", "b"),
[]chunks.Sample{sample{1, 1, nil, nil}, sample{2, 2, nil, nil}, sample{3, 3, nil, nil}, sample{5, 3, nil, nil}, sample{6, 6, nil, nil}},
),
storage.NewListSeries(labels.FromStrings("b", "b"),
[]chunks.Sample{sample{1, 3, nil, nil}, sample{2, 2, nil, nil}, sample{3, 6, nil, nil}, sample{5, 1, nil, nil}, sample{6, 7, nil, nil}, sample{7, 2, nil, nil}},
),
}),
expChks: newMockChunkSeriesSet([]storage.ChunkSeries{
storage.NewListChunkSeriesFromSamples(labels.FromStrings("a", "a"),
[]chunks.Sample{sample{1, 2, nil, nil}, sample{2, 3, nil, nil}, sample{3, 4, nil, nil}, sample{5, 2, nil, nil}, sample{6, 3, nil, nil}, sample{7, 4, nil, nil}},
),
storage.NewListChunkSeriesFromSamples(labels.FromStrings("a", "a", "b", "b"),
[]chunks.Sample{sample{1, 1, nil, nil}, sample{2, 2, nil, nil}, sample{3, 3, nil, nil}, sample{5, 3, nil, nil}, sample{6, 6, nil, nil}},
),
storage.NewListChunkSeriesFromSamples(labels.FromStrings("b", "b"),
[]chunks.Sample{sample{1, 3, nil, nil}, sample{2, 2, nil, nil}, sample{3, 6, nil, nil}, sample{5, 1, nil, nil}, sample{6, 7, nil, nil}, sample{7, 2, nil, nil}},
),
}),
},
{
mint: 2,
maxt: 6,
ms: []*labels.Matcher{labels.MustNewMatcher(labels.MatchEqual, "a", "a")},
exp: newMockSeriesSet([]storage.Series{
storage.NewListSeries(labels.FromStrings("a", "a"),
[]chunks.Sample{sample{2, 3, nil, nil}, sample{3, 4, nil, nil}, sample{5, 2, nil, nil}, sample{6, 3, nil, nil}},
),
storage.NewListSeries(labels.FromStrings("a", "a", "b", "b"),
[]chunks.Sample{sample{2, 2, nil, nil}, sample{3, 3, nil, nil}, sample{5, 3, nil, nil}, sample{6, 6, nil, nil}},
),
}),
expChks: newMockChunkSeriesSet([]storage.ChunkSeries{
storage.NewListChunkSeriesFromSamples(labels.FromStrings("a", "a"),
[]chunks.Sample{sample{2, 3, nil, nil}, sample{3, 4, nil, nil}, sample{5, 2, nil, nil}, sample{6, 3, nil, nil}},
),
storage.NewListChunkSeriesFromSamples(labels.FromStrings("a", "a", "b", "b"),
[]chunks.Sample{sample{2, 2, nil, nil}, sample{3, 3, nil, nil}, sample{5, 3, nil, nil}, sample{6, 6, nil, nil}},
),
}),
},
} {
t.Run("", func(t *testing.T) {
opts := DefaultHeadOptions()
opts.ChunkRange = 2 * time.Hour.Milliseconds()
h, err := NewHead(nil, nil, nil, nil, opts, nil)
require.NoError(t, err)
defer h.Close()
app := h.Appender(context.Background())
for _, s := range testData {
for _, chk := range s.chunks {
for _, sample := range chk {
_, err = app.Append(0, labels.FromMap(s.lset), sample.t, sample.f)
require.NoError(t, err)
}
}
}
require.NoError(t, app.Commit())
hr := NewRangeHead(h, c.mint, c.maxt)
ir, err := hr.Index()
require.NoError(t, err)
defer ir.Close()
cr, err := hr.Chunks()
require.NoError(t, err)
defer cr.Close()
testBlockQuerier(t, c, ir, cr, tombstones.NewMemTombstones())
})
}
}
func TestBlockQuerier_TrimmingDoesNotModifyOriginalTombstoneIntervals(t *testing.T) {
ctx := context.Background()
c := blockQuerierTestCase{
mint: 2,
maxt: 6,
ms: []*labels.Matcher{labels.MustNewMatcher(labels.MatchRegexp, "a", "a")},
exp: newMockSeriesSet([]storage.Series{
storage.NewListSeries(labels.FromStrings("a", "a"),
[]chunks.Sample{sample{3, 4, nil, nil}, sample{5, 2, nil, nil}, sample{6, 3, nil, nil}},
),
storage.NewListSeries(labels.FromStrings("a", "a", "b", "b"),
[]chunks.Sample{sample{3, 3, nil, nil}, sample{5, 3, nil, nil}, sample{6, 6, nil, nil}},
),
}),
expChks: newMockChunkSeriesSet([]storage.ChunkSeries{
storage.NewListChunkSeriesFromSamples(labels.FromStrings("a", "a"),
[]chunks.Sample{sample{3, 4, nil, nil}}, []chunks.Sample{sample{5, 2, nil, nil}, sample{6, 3, nil, nil}},
),
storage.NewListChunkSeriesFromSamples(labels.FromStrings("a", "a", "b", "b"),
[]chunks.Sample{sample{3, 3, nil, nil}}, []chunks.Sample{sample{5, 3, nil, nil}, sample{6, 6, nil, nil}},
),
}),
}
ir, cr, _, _ := createIdxChkReaders(t, testData)
stones := tombstones.NewMemTombstones()
p, err := ir.Postings(ctx, "a", "a")
require.NoError(t, err)
refs, err := index.ExpandPostings(p)
require.NoError(t, err)
for _, ref := range refs {
stones.AddInterval(ref, tombstones.Interval{Mint: 1, Maxt: 2})
}
testBlockQuerier(t, c, ir, cr, stones)
for _, ref := range refs {
intervals, err := stones.Get(ref)
require.NoError(t, err)
// Without copy, the intervals could be [math.MinInt64, 2].
require.Equal(t, tombstones.Intervals{{Mint: 1, Maxt: 2}}, intervals)
}
}
var testData = []seriesSamples{
{
lset: map[string]string{"a": "a"},
chunks: [][]sample{
{{1, 2, nil, nil}, {2, 3, nil, nil}, {3, 4, nil, nil}},
{{5, 2, nil, nil}, {6, 3, nil, nil}, {7, 4, nil, nil}},
},
},
{
lset: map[string]string{"a": "a", "b": "b"},
chunks: [][]sample{
{{1, 1, nil, nil}, {2, 2, nil, nil}, {3, 3, nil, nil}},
{{5, 3, nil, nil}, {6, 6, nil, nil}},
},
},
{
lset: map[string]string{"b": "b"},
chunks: [][]sample{
{{1, 3, nil, nil}, {2, 2, nil, nil}, {3, 6, nil, nil}},
{{5, 1, nil, nil}, {6, 7, nil, nil}, {7, 2, nil, nil}},
},
},
}
func TestBlockQuerierDelete(t *testing.T) {
stones := tombstones.NewTestMemTombstones([]tombstones.Intervals{
{{Mint: 1, Maxt: 3}},
{{Mint: 1, Maxt: 3}, {Mint: 6, Maxt: 10}},
{{Mint: 6, Maxt: 10}},
})
for _, c := range []blockQuerierTestCase{
{
mint: 0,
maxt: 0,
ms: []*labels.Matcher{},
exp: newMockSeriesSet([]storage.Series{}),
expChks: newMockChunkSeriesSet([]storage.ChunkSeries{}),
},
{
mint: 0,
maxt: 0,
ms: []*labels.Matcher{labels.MustNewMatcher(labels.MatchEqual, "a", "a")},
exp: newMockSeriesSet([]storage.Series{}),
expChks: newMockChunkSeriesSet([]storage.ChunkSeries{}),
},
{
mint: 1,
maxt: 0,
ms: []*labels.Matcher{labels.MustNewMatcher(labels.MatchEqual, "a", "a")},
exp: newMockSeriesSet([]storage.Series{}),
expChks: newMockChunkSeriesSet([]storage.ChunkSeries{}),
},
{
mint: math.MinInt64,
maxt: math.MaxInt64,
ms: []*labels.Matcher{labels.MustNewMatcher(labels.MatchEqual, "a", "x")},
exp: newMockSeriesSet([]storage.Series{}),
expChks: newMockChunkSeriesSet([]storage.ChunkSeries{}),
},
{
mint: math.MinInt64,
maxt: math.MaxInt64,
ms: []*labels.Matcher{labels.MustNewMatcher(labels.MatchRegexp, "a", ".*")},
exp: newMockSeriesSet([]storage.Series{
storage.NewListSeries(labels.FromStrings("a", "a"),
[]chunks.Sample{sample{5, 2, nil, nil}, sample{6, 3, nil, nil}, sample{7, 4, nil, nil}},
),
storage.NewListSeries(labels.FromStrings("a", "a", "b", "b"),
[]chunks.Sample{sample{5, 3, nil, nil}},
),
storage.NewListSeries(labels.FromStrings("b", "b"),
[]chunks.Sample{sample{1, 3, nil, nil}, sample{2, 2, nil, nil}, sample{3, 6, nil, nil}, sample{5, 1, nil, nil}},
),
}),
expChks: newMockChunkSeriesSet([]storage.ChunkSeries{
storage.NewListChunkSeriesFromSamples(labels.FromStrings("a", "a"),
[]chunks.Sample{sample{5, 2, nil, nil}, sample{6, 3, nil, nil}, sample{7, 4, nil, nil}},
),
storage.NewListChunkSeriesFromSamples(labels.FromStrings("a", "a", "b", "b"),
[]chunks.Sample{sample{5, 3, nil, nil}},
),
storage.NewListChunkSeriesFromSamples(labels.FromStrings("b", "b"),
[]chunks.Sample{sample{1, 3, nil, nil}, sample{2, 2, nil, nil}, sample{3, 6, nil, nil}}, []chunks.Sample{sample{5, 1, nil, nil}},
),
}),
},
{
mint: 2,
maxt: 6,
ms: []*labels.Matcher{labels.MustNewMatcher(labels.MatchEqual, "a", "a")},
exp: newMockSeriesSet([]storage.Series{
storage.NewListSeries(labels.FromStrings("a", "a"),
[]chunks.Sample{sample{5, 2, nil, nil}, sample{6, 3, nil, nil}},
),
storage.NewListSeries(labels.FromStrings("a", "a", "b", "b"),
[]chunks.Sample{sample{5, 3, nil, nil}},
),
}),
expChks: newMockChunkSeriesSet([]storage.ChunkSeries{
storage.NewListChunkSeriesFromSamples(labels.FromStrings("a", "a"),
[]chunks.Sample{sample{5, 2, nil, nil}, sample{6, 3, nil, nil}},
),
storage.NewListChunkSeriesFromSamples(labels.FromStrings("a", "a", "b", "b"),
[]chunks.Sample{sample{5, 3, nil, nil}},
),
}),
},
} {
t.Run("", func(t *testing.T) {
ir, cr, _, _ := createIdxChkReaders(t, testData)
testBlockQuerier(t, c, ir, cr, stones)
})
}
}
type fakeChunksReader struct {
ChunkReader
chks map[chunks.ChunkRef]chunkenc.Chunk
}
func createFakeReaderAndNotPopulatedChunks(s ...[]chunks.Sample) (*fakeChunksReader, []chunks.Meta) {
f := &fakeChunksReader{
chks: map[chunks.ChunkRef]chunkenc.Chunk{},
}
chks := make([]chunks.Meta, 0, len(s))
for ref, samples := range s {
chk, _ := chunks.ChunkFromSamples(samples)
f.chks[chunks.ChunkRef(ref)] = chk.Chunk
chks = append(chks, chunks.Meta{
Ref: chunks.ChunkRef(ref),
MinTime: chk.MinTime,
MaxTime: chk.MaxTime,
})
}
return f, chks
}
func (r *fakeChunksReader) Chunk(meta chunks.Meta) (chunkenc.Chunk, error) {
chk, ok := r.chks[meta.Ref]
if !ok {
return nil, errors.Errorf("chunk not found at ref %v", meta.Ref)
}
return chk, nil
}
func TestPopulateWithTombSeriesIterators(t *testing.T) {
cases := []struct {
name string
chks [][]chunks.Sample
expected []chunks.Sample
expectedChks []chunks.Meta
intervals tombstones.Intervals
// Seek being zero means do not test seek.
seek int64
seekSuccess bool
}{
{
name: "no chunk",
chks: [][]chunks.Sample{},
},
{
name: "one empty chunk", // This should never happen.
chks: [][]chunks.Sample{{}},
expectedChks: []chunks.Meta{
assureChunkFromSamples(t, []chunks.Sample{}),
},
},
{
name: "three empty chunks", // This should never happen.
chks: [][]chunks.Sample{{}, {}, {}},
expectedChks: []chunks.Meta{
assureChunkFromSamples(t, []chunks.Sample{}),
assureChunkFromSamples(t, []chunks.Sample{}),
assureChunkFromSamples(t, []chunks.Sample{}),
},
},
{
name: "one chunk",
chks: [][]chunks.Sample{
{sample{1, 2, nil, nil}, sample{2, 3, nil, nil}, sample{3, 5, nil, nil}, sample{6, 1, nil, nil}},
},
expected: []chunks.Sample{
sample{1, 2, nil, nil}, sample{2, 3, nil, nil}, sample{3, 5, nil, nil}, sample{6, 1, nil, nil},
},
expectedChks: []chunks.Meta{
assureChunkFromSamples(t, []chunks.Sample{
sample{1, 2, nil, nil}, sample{2, 3, nil, nil}, sample{3, 5, nil, nil}, sample{6, 1, nil, nil},
}),
},
},
{
name: "two full chunks",
chks: [][]chunks.Sample{
{sample{1, 2, nil, nil}, sample{2, 3, nil, nil}, sample{3, 5, nil, nil}, sample{6, 1, nil, nil}},
{sample{7, 89, nil, nil}, sample{9, 8, nil, nil}},
},
expected: []chunks.Sample{
sample{1, 2, nil, nil}, sample{2, 3, nil, nil}, sample{3, 5, nil, nil}, sample{6, 1, nil, nil}, sample{7, 89, nil, nil}, sample{9, 8, nil, nil},
},
expectedChks: []chunks.Meta{
assureChunkFromSamples(t, []chunks.Sample{
sample{1, 2, nil, nil}, sample{2, 3, nil, nil}, sample{3, 5, nil, nil}, sample{6, 1, nil, nil},
}),
assureChunkFromSamples(t, []chunks.Sample{
sample{7, 89, nil, nil}, sample{9, 8, nil, nil},
}),
},
},
{
name: "three full chunks",
chks: [][]chunks.Sample{
{sample{1, 2, nil, nil}, sample{2, 3, nil, nil}, sample{3, 5, nil, nil}, sample{6, 1, nil, nil}},
{sample{7, 89, nil, nil}, sample{9, 8, nil, nil}},
{sample{10, 22, nil, nil}, sample{203, 3493, nil, nil}},
},
expected: []chunks.Sample{
sample{1, 2, nil, nil}, sample{2, 3, nil, nil}, sample{3, 5, nil, nil}, sample{6, 1, nil, nil}, sample{7, 89, nil, nil}, sample{9, 8, nil, nil}, sample{10, 22, nil, nil}, sample{203, 3493, nil, nil},
},
expectedChks: []chunks.Meta{
assureChunkFromSamples(t, []chunks.Sample{
sample{1, 2, nil, nil}, sample{2, 3, nil, nil}, sample{3, 5, nil, nil}, sample{6, 1, nil, nil},
}),
assureChunkFromSamples(t, []chunks.Sample{
sample{7, 89, nil, nil}, sample{9, 8, nil, nil},
}),
assureChunkFromSamples(t, []chunks.Sample{
sample{10, 22, nil, nil}, sample{203, 3493, nil, nil},
}),
},
},
// Seek cases.
{
name: "three empty chunks and seek", // This should never happen.
chks: [][]chunks.Sample{{}, {}, {}},
seek: 1,
seekSuccess: false,
},
{
name: "two chunks and seek beyond chunks",
chks: [][]chunks.Sample{
{sample{1, 2, nil, nil}, sample{3, 5, nil, nil}, sample{6, 1, nil, nil}},
{sample{7, 89, nil, nil}, sample{9, 8, nil, nil}},
},
seek: 10,
seekSuccess: false,
},
{
name: "two chunks and seek on middle of first chunk",
chks: [][]chunks.Sample{
{sample{1, 2, nil, nil}, sample{3, 5, nil, nil}, sample{6, 1, nil, nil}},
{sample{7, 89, nil, nil}, sample{9, 8, nil, nil}},
},
seek: 2,
seekSuccess: true,
expected: []chunks.Sample{
sample{3, 5, nil, nil}, sample{6, 1, nil, nil}, sample{7, 89, nil, nil}, sample{9, 8, nil, nil},
},
},
{
name: "two chunks and seek before first chunk",
chks: [][]chunks.Sample{
{sample{1, 2, nil, nil}, sample{3, 5, nil, nil}, sample{6, 1, nil, nil}},
{sample{7, 89, nil, nil}, sample{9, 8, nil, nil}},
},
seek: -32,
seekSuccess: true,
expected: []chunks.Sample{
sample{1, 2, nil, nil}, sample{3, 5, nil, nil}, sample{6, 1, nil, nil}, sample{7, 89, nil, nil}, sample{9, 8, nil, nil},
},
},
// Deletion / Trim cases.
{
name: "no chunk with deletion interval",
chks: [][]chunks.Sample{},
intervals: tombstones.Intervals{{Mint: 20, Maxt: 21}},
},
{
name: "two chunks with trimmed first and last samples from edge chunks",
chks: [][]chunks.Sample{
{sample{1, 2, nil, nil}, sample{2, 3, nil, nil}, sample{3, 5, nil, nil}, sample{6, 1, nil, nil}},
{sample{7, 89, nil, nil}, sample{9, 8, nil, nil}},
},
intervals: tombstones.Intervals{{Mint: math.MinInt64, Maxt: 2}}.Add(tombstones.Interval{Mint: 9, Maxt: math.MaxInt64}),
expected: []chunks.Sample{
sample{3, 5, nil, nil}, sample{6, 1, nil, nil}, sample{7, 89, nil, nil},
},
expectedChks: []chunks.Meta{
assureChunkFromSamples(t, []chunks.Sample{
sample{3, 5, nil, nil}, sample{6, 1, nil, nil},
}),
assureChunkFromSamples(t, []chunks.Sample{
sample{7, 89, nil, nil},
}),
},
},
{
name: "two chunks with trimmed middle sample of first chunk",
chks: [][]chunks.Sample{
{sample{1, 2, nil, nil}, sample{2, 3, nil, nil}, sample{3, 5, nil, nil}, sample{6, 1, nil, nil}},
{sample{7, 89, nil, nil}, sample{9, 8, nil, nil}},
},
intervals: tombstones.Intervals{{Mint: 2, Maxt: 3}},
expected: []chunks.Sample{
sample{1, 2, nil, nil}, sample{6, 1, nil, nil}, sample{7, 89, nil, nil}, sample{9, 8, nil, nil},
},
expectedChks: []chunks.Meta{
assureChunkFromSamples(t, []chunks.Sample{
sample{1, 2, nil, nil}, sample{6, 1, nil, nil},
}),
assureChunkFromSamples(t, []chunks.Sample{
sample{7, 89, nil, nil}, sample{9, 8, nil, nil},
}),
},
},
{
name: "two chunks with deletion across two chunks",
chks: [][]chunks.Sample{
{sample{1, 2, nil, nil}, sample{2, 3, nil, nil}, sample{3, 5, nil, nil}, sample{6, 1, nil, nil}},
{sample{7, 89, nil, nil}, sample{9, 8, nil, nil}},
},
intervals: tombstones.Intervals{{Mint: 6, Maxt: 7}},
expected: []chunks.Sample{
sample{1, 2, nil, nil}, sample{2, 3, nil, nil}, sample{3, 5, nil, nil}, sample{9, 8, nil, nil},
},
expectedChks: []chunks.Meta{
assureChunkFromSamples(t, []chunks.Sample{
sample{1, 2, nil, nil}, sample{2, 3, nil, nil}, sample{3, 5, nil, nil},
}),
assureChunkFromSamples(t, []chunks.Sample{
sample{9, 8, nil, nil},
}),
},
},
// Deletion with seek.
{
name: "two chunks with trimmed first and last samples from edge chunks, seek from middle of first chunk",
chks: [][]chunks.Sample{
{sample{1, 2, nil, nil}, sample{2, 3, nil, nil}, sample{3, 5, nil, nil}, sample{6, 1, nil, nil}},
{sample{7, 89, nil, nil}, sample{9, 8, nil, nil}},
},
intervals: tombstones.Intervals{{Mint: math.MinInt64, Maxt: 2}}.Add(tombstones.Interval{Mint: 9, Maxt: math.MaxInt64}),
seek: 3,
seekSuccess: true,
expected: []chunks.Sample{
sample{3, 5, nil, nil}, sample{6, 1, nil, nil}, sample{7, 89, nil, nil},
},
},
{
name: "one histogram chunk",
chks: [][]chunks.Sample{
{
sample{1, 0, tsdbutil.GenerateTestHistogram(1), nil},
sample{2, 0, tsdbutil.GenerateTestHistogram(2), nil},
sample{3, 0, tsdbutil.GenerateTestHistogram(3), nil},
sample{6, 0, tsdbutil.GenerateTestHistogram(6), nil},
},
},
expected: []chunks.Sample{
sample{1, 0, tsdbutil.GenerateTestHistogram(1), nil},
sample{2, 0, tsdbutil.SetHistogramNotCounterReset(tsdbutil.GenerateTestHistogram(2)), nil},
sample{3, 0, tsdbutil.SetHistogramNotCounterReset(tsdbutil.GenerateTestHistogram(3)), nil},
sample{6, 0, tsdbutil.SetHistogramNotCounterReset(tsdbutil.GenerateTestHistogram(6)), nil},
},
expectedChks: []chunks.Meta{
assureChunkFromSamples(t, []chunks.Sample{
sample{1, 0, tsdbutil.GenerateTestHistogram(1), nil},
sample{2, 0, tsdbutil.SetHistogramNotCounterReset(tsdbutil.GenerateTestHistogram(2)), nil},
sample{3, 0, tsdbutil.SetHistogramNotCounterReset(tsdbutil.GenerateTestHistogram(3)), nil},
sample{6, 0, tsdbutil.SetHistogramNotCounterReset(tsdbutil.GenerateTestHistogram(6)), nil},
}),
},
},
{
name: "one histogram chunk intersect with deletion interval",
chks: [][]chunks.Sample{
{
sample{1, 0, tsdbutil.GenerateTestHistogram(1), nil},
sample{2, 0, tsdbutil.GenerateTestHistogram(2), nil},
sample{3, 0, tsdbutil.GenerateTestHistogram(3), nil},
sample{6, 0, tsdbutil.GenerateTestHistogram(6), nil},
},
},
intervals: tombstones.Intervals{{Mint: 5, Maxt: 20}},
expected: []chunks.Sample{
sample{1, 0, tsdbutil.GenerateTestHistogram(1), nil},
sample{2, 0, tsdbutil.SetHistogramNotCounterReset(tsdbutil.GenerateTestHistogram(2)), nil},
sample{3, 0, tsdbutil.SetHistogramNotCounterReset(tsdbutil.GenerateTestHistogram(3)), nil},
},
expectedChks: []chunks.Meta{
assureChunkFromSamples(t, []chunks.Sample{
sample{1, 0, tsdbutil.GenerateTestHistogram(1), nil},
sample{2, 0, tsdbutil.SetHistogramNotCounterReset(tsdbutil.GenerateTestHistogram(2)), nil},
sample{3, 0, tsdbutil.SetHistogramNotCounterReset(tsdbutil.GenerateTestHistogram(3)), nil},
}),
},
},
{
name: "one float histogram chunk",
chks: [][]chunks.Sample{
{
sample{1, 0, nil, tsdbutil.GenerateTestFloatHistogram(1)},
sample{2, 0, nil, tsdbutil.GenerateTestFloatHistogram(2)},
sample{3, 0, nil, tsdbutil.GenerateTestFloatHistogram(3)},
sample{6, 0, nil, tsdbutil.GenerateTestFloatHistogram(6)},
},
},
expected: []chunks.Sample{
sample{1, 0, nil, tsdbutil.GenerateTestFloatHistogram(1)},
sample{2, 0, nil, tsdbutil.SetFloatHistogramNotCounterReset(tsdbutil.GenerateTestFloatHistogram(2))},
sample{3, 0, nil, tsdbutil.SetFloatHistogramNotCounterReset(tsdbutil.GenerateTestFloatHistogram(3))},
sample{6, 0, nil, tsdbutil.SetFloatHistogramNotCounterReset(tsdbutil.GenerateTestFloatHistogram(6))},
},
expectedChks: []chunks.Meta{
assureChunkFromSamples(t, []chunks.Sample{
sample{1, 0, nil, tsdbutil.GenerateTestFloatHistogram(1)},
sample{2, 0, nil, tsdbutil.SetFloatHistogramNotCounterReset(tsdbutil.GenerateTestFloatHistogram(2))},
sample{3, 0, nil, tsdbutil.SetFloatHistogramNotCounterReset(tsdbutil.GenerateTestFloatHistogram(3))},
sample{6, 0, nil, tsdbutil.SetFloatHistogramNotCounterReset(tsdbutil.GenerateTestFloatHistogram(6))},
}),
},
},
{
name: "one float histogram chunk intersect with deletion interval",
chks: [][]chunks.Sample{
{
sample{1, 0, nil, tsdbutil.GenerateTestFloatHistogram(1)},
sample{2, 0, nil, tsdbutil.GenerateTestFloatHistogram(2)},
sample{3, 0, nil, tsdbutil.GenerateTestFloatHistogram(3)},
sample{6, 0, nil, tsdbutil.GenerateTestFloatHistogram(6)},
},
},
intervals: tombstones.Intervals{{Mint: 5, Maxt: 20}},
expected: []chunks.Sample{
sample{1, 0, nil, tsdbutil.GenerateTestFloatHistogram(1)},
sample{2, 0, nil, tsdbutil.SetFloatHistogramNotCounterReset(tsdbutil.GenerateTestFloatHistogram(2))},
sample{3, 0, nil, tsdbutil.SetFloatHistogramNotCounterReset(tsdbutil.GenerateTestFloatHistogram(3))},
},
expectedChks: []chunks.Meta{
assureChunkFromSamples(t, []chunks.Sample{
sample{1, 0, nil, tsdbutil.GenerateTestFloatHistogram(1)},
sample{2, 0, nil, tsdbutil.SetFloatHistogramNotCounterReset(tsdbutil.GenerateTestFloatHistogram(2))},
sample{3, 0, nil, tsdbutil.SetFloatHistogramNotCounterReset(tsdbutil.GenerateTestFloatHistogram(3))},
}),
},
},
{
name: "one gauge histogram chunk",
chks: [][]chunks.Sample{
{
sample{1, 0, tsdbutil.GenerateTestGaugeHistogram(1), nil},
sample{2, 0, tsdbutil.GenerateTestGaugeHistogram(2), nil},
sample{3, 0, tsdbutil.GenerateTestGaugeHistogram(3), nil},
sample{6, 0, tsdbutil.GenerateTestGaugeHistogram(6), nil},
},
},
expected: []chunks.Sample{
sample{1, 0, tsdbutil.GenerateTestGaugeHistogram(1), nil},
sample{2, 0, tsdbutil.GenerateTestGaugeHistogram(2), nil},
sample{3, 0, tsdbutil.GenerateTestGaugeHistogram(3), nil},
sample{6, 0, tsdbutil.GenerateTestGaugeHistogram(6), nil},
},
expectedChks: []chunks.Meta{
assureChunkFromSamples(t, []chunks.Sample{
sample{1, 0, tsdbutil.GenerateTestGaugeHistogram(1), nil},
sample{2, 0, tsdbutil.GenerateTestGaugeHistogram(2), nil},
sample{3, 0, tsdbutil.GenerateTestGaugeHistogram(3), nil},
sample{6, 0, tsdbutil.GenerateTestGaugeHistogram(6), nil},
}),
},
},
{
name: "one gauge histogram chunk intersect with deletion interval",
chks: [][]chunks.Sample{
{
sample{1, 0, tsdbutil.GenerateTestGaugeHistogram(1), nil},
sample{2, 0, tsdbutil.GenerateTestGaugeHistogram(2), nil},
sample{3, 0, tsdbutil.GenerateTestGaugeHistogram(3), nil},
sample{6, 0, tsdbutil.GenerateTestGaugeHistogram(6), nil},
},
},
intervals: tombstones.Intervals{{Mint: 5, Maxt: 20}},
expected: []chunks.Sample{
sample{1, 0, tsdbutil.GenerateTestGaugeHistogram(1), nil},
sample{2, 0, tsdbutil.GenerateTestGaugeHistogram(2), nil},
sample{3, 0, tsdbutil.GenerateTestGaugeHistogram(3), nil},
},
expectedChks: []chunks.Meta{
assureChunkFromSamples(t, []chunks.Sample{
sample{1, 0, tsdbutil.GenerateTestGaugeHistogram(1), nil},
sample{2, 0, tsdbutil.GenerateTestGaugeHistogram(2), nil},
sample{3, 0, tsdbutil.GenerateTestGaugeHistogram(3), nil},
}),
},
},
{
name: "one gauge float histogram",
chks: [][]chunks.Sample{
{
sample{1, 0, nil, tsdbutil.GenerateTestGaugeFloatHistogram(1)},
sample{2, 0, nil, tsdbutil.GenerateTestGaugeFloatHistogram(2)},
sample{3, 0, nil, tsdbutil.GenerateTestGaugeFloatHistogram(3)},
sample{6, 0, nil, tsdbutil.GenerateTestGaugeFloatHistogram(6)},
},
},
expected: []chunks.Sample{
sample{1, 0, nil, tsdbutil.GenerateTestGaugeFloatHistogram(1)},
sample{2, 0, nil, tsdbutil.GenerateTestGaugeFloatHistogram(2)},
sample{3, 0, nil, tsdbutil.GenerateTestGaugeFloatHistogram(3)},
sample{6, 0, nil, tsdbutil.GenerateTestGaugeFloatHistogram(6)},
},
expectedChks: []chunks.Meta{
assureChunkFromSamples(t, []chunks.Sample{
sample{1, 0, nil, tsdbutil.GenerateTestGaugeFloatHistogram(1)},
sample{2, 0, nil, tsdbutil.GenerateTestGaugeFloatHistogram(2)},
sample{3, 0, nil, tsdbutil.GenerateTestGaugeFloatHistogram(3)},
sample{6, 0, nil, tsdbutil.GenerateTestGaugeFloatHistogram(6)},
}),
},
},
{
name: "one gauge float histogram chunk intersect with deletion interval",
chks: [][]chunks.Sample{
{
sample{1, 0, nil, tsdbutil.GenerateTestGaugeFloatHistogram(1)},
sample{2, 0, nil, tsdbutil.GenerateTestGaugeFloatHistogram(2)},
sample{3, 0, nil, tsdbutil.GenerateTestGaugeFloatHistogram(3)},
sample{6, 0, nil, tsdbutil.GenerateTestGaugeFloatHistogram(6)},
},
},
intervals: tombstones.Intervals{{Mint: 5, Maxt: 20}},
expected: []chunks.Sample{
sample{1, 0, nil, tsdbutil.GenerateTestGaugeFloatHistogram(1)},
sample{2, 0, nil, tsdbutil.GenerateTestGaugeFloatHistogram(2)},
sample{3, 0, nil, tsdbutil.GenerateTestGaugeFloatHistogram(3)},
},
expectedChks: []chunks.Meta{
assureChunkFromSamples(t, []chunks.Sample{
sample{1, 0, nil, tsdbutil.GenerateTestGaugeFloatHistogram(1)},
sample{2, 0, nil, tsdbutil.GenerateTestGaugeFloatHistogram(2)},
sample{3, 0, nil, tsdbutil.GenerateTestGaugeFloatHistogram(3)},
}),
},
},
}
for _, tc := range cases {
t.Run(tc.name, func(t *testing.T) {
t.Run("sample", func(t *testing.T) {
f, chkMetas := createFakeReaderAndNotPopulatedChunks(tc.chks...)
it := &populateWithDelSeriesIterator{}
it.reset(ulid.ULID{}, f, chkMetas, tc.intervals)
var r []chunks.Sample
if tc.seek != 0 {
require.Equal(t, tc.seekSuccess, it.Seek(tc.seek) == chunkenc.ValFloat)
require.Equal(t, tc.seekSuccess, it.Seek(tc.seek) == chunkenc.ValFloat) // Next one should be noop.
if tc.seekSuccess {
// After successful seek iterator is ready. Grab the value.
t, v := it.At()
r = append(r, sample{t: t, f: v})
}
}
expandedResult, err := storage.ExpandSamples(it, newSample)
require.NoError(t, err)
r = append(r, expandedResult...)
require.Equal(t, tc.expected, r)
})
t.Run("chunk", func(t *testing.T) {
f, chkMetas := createFakeReaderAndNotPopulatedChunks(tc.chks...)
it := &populateWithDelChunkSeriesIterator{}
it.reset(ulid.ULID{}, f, chkMetas, tc.intervals)
if tc.seek != 0 {
// Chunk iterator does not have Seek method.
return
}
expandedResult, err := storage.ExpandChunks(it)
require.NoError(t, err)
// We don't care about ref IDs for comparison, only chunk's samples matters.
rmChunkRefs(expandedResult)
rmChunkRefs(tc.expectedChks)
require.Equal(t, tc.expectedChks, expandedResult)
})
})
}
}
func rmChunkRefs(chks []chunks.Meta) {
for i := range chks {
chks[i].Ref = 0
}
}
// Regression for: https://github.com/prometheus/tsdb/pull/97
func TestPopulateWithDelSeriesIterator_DoubleSeek(t *testing.T) {
f, chkMetas := createFakeReaderAndNotPopulatedChunks(
[]chunks.Sample{},
[]chunks.Sample{sample{1, 1, nil, nil}, sample{2, 2, nil, nil}, sample{3, 3, nil, nil}},
[]chunks.Sample{sample{4, 4, nil, nil}, sample{5, 5, nil, nil}},
)
it := &populateWithDelSeriesIterator{}
it.reset(ulid.ULID{}, f, chkMetas, nil)
require.Equal(t, chunkenc.ValFloat, it.Seek(1))
require.Equal(t, chunkenc.ValFloat, it.Seek(2))
require.Equal(t, chunkenc.ValFloat, it.Seek(2))
ts, v := it.At()
require.Equal(t, int64(2), ts)
require.Equal(t, float64(2), v)
}
// Regression when seeked chunks were still found via binary search and we always
// skipped to the end when seeking a value in the current chunk.
func TestPopulateWithDelSeriesIterator_SeekInCurrentChunk(t *testing.T) {
f, chkMetas := createFakeReaderAndNotPopulatedChunks(
[]chunks.Sample{},
[]chunks.Sample{sample{1, 2, nil, nil}, sample{3, 4, nil, nil}, sample{5, 6, nil, nil}, sample{7, 8, nil, nil}},
[]chunks.Sample{},
)
it := &populateWithDelSeriesIterator{}
it.reset(ulid.ULID{}, f, chkMetas, nil)
require.Equal(t, chunkenc.ValFloat, it.Next())
ts, v := it.At()
require.Equal(t, int64(1), ts)
require.Equal(t, float64(2), v)
require.Equal(t, chunkenc.ValFloat, it.Seek(4))
ts, v = it.At()
require.Equal(t, int64(5), ts)
require.Equal(t, float64(6), v)
}
func TestPopulateWithDelSeriesIterator_SeekWithMinTime(t *testing.T) {
f, chkMetas := createFakeReaderAndNotPopulatedChunks(
[]chunks.Sample{sample{1, 6, nil, nil}, sample{5, 6, nil, nil}, sample{6, 8, nil, nil}},
)
it := &populateWithDelSeriesIterator{}
it.reset(ulid.ULID{}, f, chkMetas, nil)
require.Equal(t, chunkenc.ValNone, it.Seek(7))
require.Equal(t, chunkenc.ValFloat, it.Seek(3))
}
// Regression when calling Next() with a time bounded to fit within two samples.
// Seek gets called and advances beyond the max time, which was just accepted as a valid sample.
func TestPopulateWithDelSeriesIterator_NextWithMinTime(t *testing.T) {
f, chkMetas := createFakeReaderAndNotPopulatedChunks(
[]chunks.Sample{sample{1, 6, nil, nil}, sample{5, 6, nil, nil}, sample{7, 8, nil, nil}},
)
it := &populateWithDelSeriesIterator{}
it.reset(ulid.ULID{}, f, chkMetas, tombstones.Intervals{{Mint: math.MinInt64, Maxt: 2}}.Add(tombstones.Interval{Mint: 4, Maxt: math.MaxInt64}))
require.Equal(t, chunkenc.ValNone, it.Next())
}
// Test the cost of merging series sets for different number of merged sets and their size.
// The subset are all equivalent so this does not capture merging of partial or non-overlapping sets well.
// TODO(bwplotka): Merge with storage merged series set benchmark.
func BenchmarkMergedSeriesSet(b *testing.B) {
sel := func(sets []storage.SeriesSet) storage.SeriesSet {
return storage.NewMergeSeriesSet(sets, storage.ChainedSeriesMerge)
}
for _, k := range []int{
100,
1000,
10000,
20000,
} {
for _, j := range []int{1, 2, 4, 8, 16, 32} {
b.Run(fmt.Sprintf("series=%d,blocks=%d", k, j), func(b *testing.B) {
lbls, err := labels.ReadLabels(filepath.Join("testdata", "20kseries.json"), k)
require.NoError(b, err)
sort.Sort(labels.Slice(lbls))
in := make([][]storage.Series, j)
for _, l := range lbls {
l2 := l
for j := range in {
in[j] = append(in[j], storage.NewListSeries(l2, nil))
}
}
b.ResetTimer()
for i := 0; i < b.N; i++ {
var sets []storage.SeriesSet
for _, s := range in {
sets = append(sets, newMockSeriesSet(s))
}
ms := sel(sets)
i := 0
for ms.Next() {
i++
}
require.NoError(b, ms.Err())
require.Equal(b, len(lbls), i)
}
})
}
}
}
type mockChunkReader map[chunks.ChunkRef]chunkenc.Chunk
func (cr mockChunkReader) Chunk(meta chunks.Meta) (chunkenc.Chunk, error) {
chk, ok := cr[meta.Ref]
if ok {
return chk, nil
}
return nil, errors.New("Chunk with ref not found")
}
func (cr mockChunkReader) Close() error {
return nil
}
func TestDeletedIterator(t *testing.T) {
chk := chunkenc.NewXORChunk()
app, err := chk.Appender()
require.NoError(t, err)
// Insert random stuff from (0, 1000).
act := make([]sample, 1000)
for i := 0; i < 1000; i++ {
act[i].t = int64(i)
act[i].f = rand.Float64()
app.Append(act[i].t, act[i].f)
}
cases := []struct {
r tombstones.Intervals
}{
{r: tombstones.Intervals{{Mint: 1, Maxt: 20}}},
{r: tombstones.Intervals{{Mint: 1, Maxt: 10}, {Mint: 12, Maxt: 20}, {Mint: 21, Maxt: 23}, {Mint: 25, Maxt: 30}}},
{r: tombstones.Intervals{{Mint: 1, Maxt: 10}, {Mint: 12, Maxt: 20}, {Mint: 20, Maxt: 30}}},
{r: tombstones.Intervals{{Mint: 1, Maxt: 10}, {Mint: 12, Maxt: 23}, {Mint: 25, Maxt: 30}}},
{r: tombstones.Intervals{{Mint: 1, Maxt: 23}, {Mint: 12, Maxt: 20}, {Mint: 25, Maxt: 30}}},
{r: tombstones.Intervals{{Mint: 1, Maxt: 23}, {Mint: 12, Maxt: 20}, {Mint: 25, Maxt: 3000}}},
{r: tombstones.Intervals{{Mint: 0, Maxt: 2000}}},
{r: tombstones.Intervals{{Mint: 500, Maxt: 2000}}},
{r: tombstones.Intervals{{Mint: 0, Maxt: 200}}},
{r: tombstones.Intervals{{Mint: 1000, Maxt: 20000}}},
}
for _, c := range cases {
i := int64(-1)
it := &DeletedIterator{Iter: chk.Iterator(nil), Intervals: c.r[:]}
ranges := c.r[:]
for it.Next() == chunkenc.ValFloat {
i++
for _, tr := range ranges {
if tr.InBounds(i) {
i = tr.Maxt + 1
ranges = ranges[1:]
}
}
require.Less(t, i, int64(1000))
ts, v := it.At()
require.Equal(t, act[i].t, ts)
require.Equal(t, act[i].f, v)
}
// There has been an extra call to Next().
i++
for _, tr := range ranges {
if tr.InBounds(i) {
i = tr.Maxt + 1
ranges = ranges[1:]
}
}
require.GreaterOrEqual(t, i, int64(1000))
require.NoError(t, it.Err())
}
}
func TestDeletedIterator_WithSeek(t *testing.T) {
chk := chunkenc.NewXORChunk()
app, err := chk.Appender()
require.NoError(t, err)
// Insert random stuff from (0, 1000).
act := make([]sample, 1000)
for i := 0; i < 1000; i++ {
act[i].t = int64(i)
act[i].f = float64(i)
app.Append(act[i].t, act[i].f)
}
cases := []struct {
r tombstones.Intervals
seek int64
ok bool
seekedTs int64
}{
{r: tombstones.Intervals{{Mint: 1, Maxt: 20}}, seek: 1, ok: true, seekedTs: 21},
{r: tombstones.Intervals{{Mint: 1, Maxt: 20}}, seek: 20, ok: true, seekedTs: 21},
{r: tombstones.Intervals{{Mint: 1, Maxt: 20}}, seek: 10, ok: true, seekedTs: 21},
{r: tombstones.Intervals{{Mint: 1, Maxt: 20}}, seek: 999, ok: true, seekedTs: 999},
{r: tombstones.Intervals{{Mint: 1, Maxt: 20}}, seek: 1000, ok: false},
{r: tombstones.Intervals{{Mint: 1, Maxt: 23}, {Mint: 24, Maxt: 40}, {Mint: 45, Maxt: 3000}}, seek: 1, ok: true, seekedTs: 41},
{r: tombstones.Intervals{{Mint: 5, Maxt: 23}, {Mint: 24, Maxt: 40}, {Mint: 41, Maxt: 3000}}, seek: 5, ok: false},
{r: tombstones.Intervals{{Mint: 0, Maxt: 2000}}, seek: 10, ok: false},
{r: tombstones.Intervals{{Mint: 500, Maxt: 2000}}, seek: 10, ok: true, seekedTs: 10},
{r: tombstones.Intervals{{Mint: 500, Maxt: 2000}}, seek: 501, ok: false},
}
for _, c := range cases {
it := &DeletedIterator{Iter: chk.Iterator(nil), Intervals: c.r[:]}
require.Equal(t, c.ok, it.Seek(c.seek) == chunkenc.ValFloat)
if c.ok {
ts := it.AtT()
require.Equal(t, c.seekedTs, ts)
}
}
}
type series struct {
l labels.Labels
chunks []chunks.Meta
}
type mockIndex struct {
series map[storage.SeriesRef]series
postings map[labels.Label][]storage.SeriesRef
symbols map[string]struct{}
}
func newMockIndex() mockIndex {
ix := mockIndex{
series: make(map[storage.SeriesRef]series),
postings: make(map[labels.Label][]storage.SeriesRef),
symbols: make(map[string]struct{}),
}
return ix
}
func (m mockIndex) Symbols() index.StringIter {
l := []string{}
for s := range m.symbols {
l = append(l, s)
}
sort.Strings(l)
return index.NewStringListIter(l)
}
func (m *mockIndex) AddSeries(ref storage.SeriesRef, l labels.Labels, chunks ...chunks.Meta) error {
if _, ok := m.series[ref]; ok {
return errors.Errorf("series with reference %d already added", ref)
}
l.Range(func(lbl labels.Label) {
m.symbols[lbl.Name] = struct{}{}
m.symbols[lbl.Value] = struct{}{}
})
s := series{l: l}
// Actual chunk data is not stored in the index.
for _, c := range chunks {
c.Chunk = nil
s.chunks = append(s.chunks, c)
}
m.series[ref] = s
return nil
}
func (m mockIndex) WritePostings(name, value string, it index.Postings) error {
l := labels.Label{Name: name, Value: value}
if _, ok := m.postings[l]; ok {
return errors.Errorf("postings for %s already added", l)
}
ep, err := index.ExpandPostings(it)
if err != nil {
return err
}
m.postings[l] = ep
return nil
}
func (m mockIndex) Close() error {
return nil
}
func (m mockIndex) SortedLabelValues(ctx context.Context, name string, matchers ...*labels.Matcher) ([]string, error) {
values, _ := m.LabelValues(ctx, name, matchers...)
sort.Strings(values)
return values, nil
}
func (m mockIndex) LabelValues(_ context.Context, name string, matchers ...*labels.Matcher) ([]string, error) {
var values []string
if len(matchers) == 0 {
for l := range m.postings {
if l.Name == name {
values = append(values, l.Value)
}
}
return values, nil
}
for _, series := range m.series {
for _, matcher := range matchers {
if matcher.Matches(series.l.Get(matcher.Name)) {
// TODO(colega): shouldn't we check all the matchers before adding this to the values?
values = append(values, series.l.Get(name))
}
}
}
return values, nil
}
func (m mockIndex) LabelValueFor(_ context.Context, id storage.SeriesRef, label string) (string, error) {
return m.series[id].l.Get(label), nil
}
func (m mockIndex) LabelNamesFor(ctx context.Context, ids ...storage.SeriesRef) ([]string, error) {
namesMap := make(map[string]bool)
for _, id := range ids {
m.series[id].l.Range(func(lbl labels.Label) {
namesMap[lbl.Name] = true
})
}
names := make([]string, 0, len(namesMap))
for name := range namesMap {
names = append(names, name)
}
return names, nil
}
func (m mockIndex) Postings(ctx context.Context, name string, values ...string) (index.Postings, error) {
res := make([]index.Postings, 0, len(values))
for _, value := range values {
l := labels.Label{Name: name, Value: value}
res = append(res, index.NewListPostings(m.postings[l]))
}
return index.Merge(ctx, res...), nil
}
func (m mockIndex) SortedPostings(p index.Postings) index.Postings {
ep, err := index.ExpandPostings(p)
if err != nil {
return index.ErrPostings(errors.Wrap(err, "expand postings"))
}
sort.Slice(ep, func(i, j int) bool {
return labels.Compare(m.series[ep[i]].l, m.series[ep[j]].l) < 0
})
return index.NewListPostings(ep)
}
func (m mockIndex) Series(ref storage.SeriesRef, builder *labels.ScratchBuilder, chks *[]chunks.Meta) error {
s, ok := m.series[ref]
if !ok {
return storage.ErrNotFound
}
builder.Assign(s.l)
*chks = append((*chks)[:0], s.chunks...)
return nil
}
func (m mockIndex) LabelNames(_ context.Context, matchers ...*labels.Matcher) ([]string, error) {
names := map[string]struct{}{}
if len(matchers) == 0 {
for l := range m.postings {
names[l.Name] = struct{}{}
}
} else {
for _, series := range m.series {
matches := true
for _, matcher := range matchers {
matches = matches || matcher.Matches(series.l.Get(matcher.Name))
if !matches {
break
}
}
if matches {
series.l.Range(func(lbl labels.Label) {
names[lbl.Name] = struct{}{}
})
}
}
}
l := make([]string, 0, len(names))
for name := range names {
l = append(l, name)
}
sort.Strings(l)
return l, nil
}
func BenchmarkQueryIterator(b *testing.B) {
cases := []struct {
numBlocks int
numSeries int
numSamplesPerSeriesPerBlock int
overlapPercentages []int // >=0, <=100, this is w.r.t. the previous block.
}{
{
numBlocks: 20,
numSeries: 1000,
numSamplesPerSeriesPerBlock: 20000,
overlapPercentages: []int{0, 10, 30},
},
}
for _, c := range cases {
for _, overlapPercentage := range c.overlapPercentages {
benchMsg := fmt.Sprintf("nBlocks=%d,nSeries=%d,numSamplesPerSeriesPerBlock=%d,overlap=%d%%",
c.numBlocks, c.numSeries, c.numSamplesPerSeriesPerBlock, overlapPercentage)
b.Run(benchMsg, func(b *testing.B) {
dir := b.TempDir()
var (
blocks []*Block
overlapDelta = int64(overlapPercentage * c.numSamplesPerSeriesPerBlock / 100)
prefilledLabels []map[string]string
generatedSeries []storage.Series
)
for i := int64(0); i < int64(c.numBlocks); i++ {
offset := i * overlapDelta
mint := i*int64(c.numSamplesPerSeriesPerBlock) - offset
maxt := mint + int64(c.numSamplesPerSeriesPerBlock) - 1
if len(prefilledLabels) == 0 {
generatedSeries = genSeries(c.numSeries, 10, mint, maxt)
for _, s := range generatedSeries {
prefilledLabels = append(prefilledLabels, s.Labels().Map())
}
} else {
generatedSeries = populateSeries(prefilledLabels, mint, maxt)
}
block, err := OpenBlock(nil, createBlock(b, dir, generatedSeries), nil)
require.NoError(b, err)
blocks = append(blocks, block)
defer block.Close()
}
qblocks := make([]storage.Querier, 0, len(blocks))
for _, blk := range blocks {
q, err := NewBlockQuerier(blk, math.MinInt64, math.MaxInt64)
require.NoError(b, err)
qblocks = append(qblocks, q)
}
sq := storage.NewMergeQuerier(qblocks, nil, storage.ChainedSeriesMerge)
defer sq.Close()
benchQuery(b, c.numSeries, sq, labels.Selector{labels.MustNewMatcher(labels.MatchRegexp, "__name__", ".*")})
})
}
}
}
func BenchmarkQuerySeek(b *testing.B) {
cases := []struct {
numBlocks int
numSeries int
numSamplesPerSeriesPerBlock int
overlapPercentages []int // >=0, <=100, this is w.r.t. the previous block.
}{
{
numBlocks: 20,
numSeries: 100,
numSamplesPerSeriesPerBlock: 2000,
overlapPercentages: []int{0, 10, 30, 50},
},
}
for _, c := range cases {
for _, overlapPercentage := range c.overlapPercentages {
benchMsg := fmt.Sprintf("nBlocks=%d,nSeries=%d,numSamplesPerSeriesPerBlock=%d,overlap=%d%%",
c.numBlocks, c.numSeries, c.numSamplesPerSeriesPerBlock, overlapPercentage)
b.Run(benchMsg, func(b *testing.B) {
dir := b.TempDir()
var (
blocks []*Block
overlapDelta = int64(overlapPercentage * c.numSamplesPerSeriesPerBlock / 100)
prefilledLabels []map[string]string
generatedSeries []storage.Series
)
for i := int64(0); i < int64(c.numBlocks); i++ {
offset := i * overlapDelta
mint := i*int64(c.numSamplesPerSeriesPerBlock) - offset
maxt := mint + int64(c.numSamplesPerSeriesPerBlock) - 1
if len(prefilledLabels) == 0 {
generatedSeries = genSeries(c.numSeries, 10, mint, maxt)
for _, s := range generatedSeries {
prefilledLabels = append(prefilledLabels, s.Labels().Map())
}
} else {
generatedSeries = populateSeries(prefilledLabels, mint, maxt)
}
block, err := OpenBlock(nil, createBlock(b, dir, generatedSeries), nil)
require.NoError(b, err)
blocks = append(blocks, block)
defer block.Close()
}
qblocks := make([]storage.Querier, 0, len(blocks))
for _, blk := range blocks {
q, err := NewBlockQuerier(blk, math.MinInt64, math.MaxInt64)
require.NoError(b, err)
qblocks = append(qblocks, q)
}
sq := storage.NewMergeQuerier(qblocks, nil, storage.ChainedSeriesMerge)
defer sq.Close()
mint := blocks[0].meta.MinTime
maxt := blocks[len(blocks)-1].meta.MaxTime
b.ResetTimer()
b.ReportAllocs()
var it chunkenc.Iterator
ss := sq.Select(context.Background(), false, nil, labels.MustNewMatcher(labels.MatchRegexp, "__name__", ".*"))
for ss.Next() {
it = ss.At().Iterator(it)
for t := mint; t <= maxt; t++ {
it.Seek(t)
}
require.NoError(b, it.Err())
}
require.NoError(b, ss.Err())
require.Equal(b, 0, len(ss.Warnings()))
})
}
}
}
// Refer to https://github.com/prometheus/prometheus/issues/2651.
func BenchmarkSetMatcher(b *testing.B) {
cases := []struct {
numBlocks int
numSeries int
numSamplesPerSeriesPerBlock int
cardinality int
pattern string
}{
// The first three cases are to find out whether the set
// matcher is always faster than regex matcher.
{
numBlocks: 1,
numSeries: 1,
numSamplesPerSeriesPerBlock: 10,
cardinality: 100,
pattern: "1|2|3|4|5|6|7|8|9|10",
},
{
numBlocks: 1,
numSeries: 15,
numSamplesPerSeriesPerBlock: 10,
cardinality: 100,
pattern: "1|2|3|4|5|6|7|8|9|10",
},
{
numBlocks: 1,
numSeries: 15,
numSamplesPerSeriesPerBlock: 10,
cardinality: 100,
pattern: "1|2|3",
},
// Big data sizes benchmarks.
{
numBlocks: 20,
numSeries: 1000,
numSamplesPerSeriesPerBlock: 10,
cardinality: 100,
pattern: "1|2|3",
},
{
numBlocks: 20,
numSeries: 1000,
numSamplesPerSeriesPerBlock: 10,
cardinality: 100,
pattern: "1|2|3|4|5|6|7|8|9|10",
},
// Increase cardinality.
{
numBlocks: 1,
numSeries: 100000,
numSamplesPerSeriesPerBlock: 10,
cardinality: 100000,
pattern: "1|2|3|4|5|6|7|8|9|10",
},
{
numBlocks: 1,
numSeries: 500000,
numSamplesPerSeriesPerBlock: 10,
cardinality: 500000,
pattern: "1|2|3|4|5|6|7|8|9|10",
},
{
numBlocks: 10,
numSeries: 500000,
numSamplesPerSeriesPerBlock: 10,
cardinality: 500000,
pattern: "1|2|3|4|5|6|7|8|9|10",
},
{
numBlocks: 1,
numSeries: 1000000,
numSamplesPerSeriesPerBlock: 10,
cardinality: 1000000,
pattern: "1|2|3|4|5|6|7|8|9|10",
},
}
for _, c := range cases {
dir := b.TempDir()
var (
blocks []*Block
prefilledLabels []map[string]string
generatedSeries []storage.Series
)
for i := int64(0); i < int64(c.numBlocks); i++ {
mint := i * int64(c.numSamplesPerSeriesPerBlock)
maxt := mint + int64(c.numSamplesPerSeriesPerBlock) - 1
if len(prefilledLabels) == 0 {
generatedSeries = genSeries(c.numSeries, 10, mint, maxt)
for _, s := range generatedSeries {
prefilledLabels = append(prefilledLabels, s.Labels().Map())
}
} else {
generatedSeries = populateSeries(prefilledLabels, mint, maxt)
}
block, err := OpenBlock(nil, createBlock(b, dir, generatedSeries), nil)
require.NoError(b, err)
blocks = append(blocks, block)
defer block.Close()
}
qblocks := make([]storage.Querier, 0, len(blocks))
for _, blk := range blocks {
q, err := NewBlockQuerier(blk, math.MinInt64, math.MaxInt64)
require.NoError(b, err)
qblocks = append(qblocks, q)
}
sq := storage.NewMergeQuerier(qblocks, nil, storage.ChainedSeriesMerge)
defer sq.Close()
benchMsg := fmt.Sprintf("nSeries=%d,nBlocks=%d,cardinality=%d,pattern=\"%s\"", c.numSeries, c.numBlocks, c.cardinality, c.pattern)
b.Run(benchMsg, func(b *testing.B) {
b.ResetTimer()
b.ReportAllocs()
for n := 0; n < b.N; n++ {
ss := sq.Select(context.Background(), false, nil, labels.MustNewMatcher(labels.MatchRegexp, "test", c.pattern))
for ss.Next() {
}
require.NoError(b, ss.Err())
require.Equal(b, 0, len(ss.Warnings()))
}
})
}
}
// Refer to https://github.com/prometheus/prometheus/issues/2651.
func TestFindSetMatches(t *testing.T) {
cases := []struct {
pattern string
exp []string
}{
// Single value, coming from a `bar=~"foo"` selector.
{
pattern: "^(?:foo)$",
exp: []string{
"foo",
},
},
// Simple sets.
{
pattern: "^(?:foo|bar|baz)$",
exp: []string{
"foo",
"bar",
"baz",
},
},
// Simple sets containing escaped characters.
{
pattern: "^(?:fo\\.o|bar\\?|\\^baz)$",
exp: []string{
"fo.o",
"bar?",
"^baz",
},
},
// Simple sets containing special characters without escaping.
{
pattern: "^(?:fo.o|bar?|^baz)$",
exp: nil,
},
// Missing wrapper.
{
pattern: "foo|bar|baz",
exp: nil,
},
}
for _, c := range cases {
matches := findSetMatches(c.pattern)
if len(c.exp) == 0 {
if len(matches) != 0 {
t.Errorf("Evaluating %s, unexpected result %v", c.pattern, matches)
}
} else {
if len(matches) != len(c.exp) {
t.Errorf("Evaluating %s, length of result not equal to exp", c.pattern)
} else {
for i := 0; i < len(c.exp); i++ {
if c.exp[i] != matches[i] {
t.Errorf("Evaluating %s, unexpected result %s", c.pattern, matches[i])
}
}
}
}
}
}
func TestPostingsForMatchers(t *testing.T) {
chunkDir := t.TempDir()
opts := DefaultHeadOptions()
opts.ChunkRange = 1000
opts.ChunkDirRoot = chunkDir
h, err := NewHead(nil, nil, nil, nil, opts, nil)
require.NoError(t, err)
defer func() {
require.NoError(t, h.Close())
}()
app := h.Appender(context.Background())
app.Append(0, labels.FromStrings("n", "1"), 0, 0)
app.Append(0, labels.FromStrings("n", "1", "i", "a"), 0, 0)
app.Append(0, labels.FromStrings("n", "1", "i", "b"), 0, 0)
app.Append(0, labels.FromStrings("n", "2"), 0, 0)
app.Append(0, labels.FromStrings("n", "2.5"), 0, 0)
require.NoError(t, app.Commit())
cases := []struct {
matchers []*labels.Matcher
exp []labels.Labels
}{
// Simple equals.
{
matchers: []*labels.Matcher{labels.MustNewMatcher(labels.MatchEqual, "n", "1")},
exp: []labels.Labels{
labels.FromStrings("n", "1"),
labels.FromStrings("n", "1", "i", "a"),
labels.FromStrings("n", "1", "i", "b"),
},
},
{
matchers: []*labels.Matcher{labels.MustNewMatcher(labels.MatchEqual, "n", "1"), labels.MustNewMatcher(labels.MatchEqual, "i", "a")},
exp: []labels.Labels{
labels.FromStrings("n", "1", "i", "a"),
},
},
{
matchers: []*labels.Matcher{labels.MustNewMatcher(labels.MatchEqual, "n", "1"), labels.MustNewMatcher(labels.MatchEqual, "i", "missing")},
exp: []labels.Labels{},
},
{
matchers: []*labels.Matcher{labels.MustNewMatcher(labels.MatchEqual, "missing", "")},
exp: []labels.Labels{
labels.FromStrings("n", "1"),
labels.FromStrings("n", "1", "i", "a"),
labels.FromStrings("n", "1", "i", "b"),
labels.FromStrings("n", "2"),
labels.FromStrings("n", "2.5"),
},
},
// Not equals.
{
matchers: []*labels.Matcher{labels.MustNewMatcher(labels.MatchNotEqual, "n", "1")},
exp: []labels.Labels{
labels.FromStrings("n", "2"),
labels.FromStrings("n", "2.5"),
},
},
{
matchers: []*labels.Matcher{labels.MustNewMatcher(labels.MatchNotEqual, "i", "")},
exp: []labels.Labels{
labels.FromStrings("n", "1", "i", "a"),
labels.FromStrings("n", "1", "i", "b"),
},
},
{
matchers: []*labels.Matcher{labels.MustNewMatcher(labels.MatchNotEqual, "missing", "")},
exp: []labels.Labels{},
},
{
matchers: []*labels.Matcher{labels.MustNewMatcher(labels.MatchEqual, "n", "1"), labels.MustNewMatcher(labels.MatchNotEqual, "i", "a")},
exp: []labels.Labels{
labels.FromStrings("n", "1"),
labels.FromStrings("n", "1", "i", "b"),
},
},
{
matchers: []*labels.Matcher{labels.MustNewMatcher(labels.MatchEqual, "n", "1"), labels.MustNewMatcher(labels.MatchNotEqual, "i", "")},
exp: []labels.Labels{
labels.FromStrings("n", "1", "i", "a"),
labels.FromStrings("n", "1", "i", "b"),
},
},
// Regex.
{
matchers: []*labels.Matcher{labels.MustNewMatcher(labels.MatchRegexp, "n", "^1$")},
exp: []labels.Labels{
labels.FromStrings("n", "1"),
labels.FromStrings("n", "1", "i", "a"),
labels.FromStrings("n", "1", "i", "b"),
},
},
{
matchers: []*labels.Matcher{labels.MustNewMatcher(labels.MatchEqual, "n", "1"), labels.MustNewMatcher(labels.MatchRegexp, "i", "^a$")},
exp: []labels.Labels{
labels.FromStrings("n", "1", "i", "a"),
},
},
{
matchers: []*labels.Matcher{labels.MustNewMatcher(labels.MatchEqual, "n", "1"), labels.MustNewMatcher(labels.MatchRegexp, "i", "^a?$")},
exp: []labels.Labels{
labels.FromStrings("n", "1"),
labels.FromStrings("n", "1", "i", "a"),
},
},
{
matchers: []*labels.Matcher{labels.MustNewMatcher(labels.MatchRegexp, "i", "^$")},
exp: []labels.Labels{
labels.FromStrings("n", "1"),
labels.FromStrings("n", "2"),
labels.FromStrings("n", "2.5"),
},
},
{
matchers: []*labels.Matcher{labels.MustNewMatcher(labels.MatchEqual, "n", "1"), labels.MustNewMatcher(labels.MatchRegexp, "i", "^$")},
exp: []labels.Labels{
labels.FromStrings("n", "1"),
},
},
{
matchers: []*labels.Matcher{labels.MustNewMatcher(labels.MatchEqual, "n", "1"), labels.MustNewMatcher(labels.MatchRegexp, "i", "^.*$")},
exp: []labels.Labels{
labels.FromStrings("n", "1"),
labels.FromStrings("n", "1", "i", "a"),
labels.FromStrings("n", "1", "i", "b"),
},
},
{
matchers: []*labels.Matcher{labels.MustNewMatcher(labels.MatchEqual, "n", "1"), labels.MustNewMatcher(labels.MatchRegexp, "i", "^.+$")},
exp: []labels.Labels{
labels.FromStrings("n", "1", "i", "a"),
labels.FromStrings("n", "1", "i", "b"),
},
},
// Not regex.
{
matchers: []*labels.Matcher{labels.MustNewMatcher(labels.MatchNotRegexp, "n", "^1$")},
exp: []labels.Labels{
labels.FromStrings("n", "2"),
labels.FromStrings("n", "2.5"),
},
},
{
matchers: []*labels.Matcher{labels.MustNewMatcher(labels.MatchNotRegexp, "n", "1")},
exp: []labels.Labels{
labels.FromStrings("n", "2"),
labels.FromStrings("n", "2.5"),
},
},
{
matchers: []*labels.Matcher{labels.MustNewMatcher(labels.MatchNotRegexp, "n", "1|2.5")},
exp: []labels.Labels{
labels.FromStrings("n", "2"),
},
},
{
matchers: []*labels.Matcher{labels.MustNewMatcher(labels.MatchNotRegexp, "n", "(1|2.5)")},
exp: []labels.Labels{
labels.FromStrings("n", "2"),
},
},
{
matchers: []*labels.Matcher{labels.MustNewMatcher(labels.MatchEqual, "n", "1"), labels.MustNewMatcher(labels.MatchNotRegexp, "i", "^a$")},
exp: []labels.Labels{
labels.FromStrings("n", "1"),
labels.FromStrings("n", "1", "i", "b"),
},
},
{
matchers: []*labels.Matcher{labels.MustNewMatcher(labels.MatchEqual, "n", "1"), labels.MustNewMatcher(labels.MatchNotRegexp, "i", "^a?$")},
exp: []labels.Labels{
labels.FromStrings("n", "1", "i", "b"),
},
},
{
matchers: []*labels.Matcher{labels.MustNewMatcher(labels.MatchEqual, "n", "1"), labels.MustNewMatcher(labels.MatchNotRegexp, "i", "^$")},
exp: []labels.Labels{
labels.FromStrings("n", "1", "i", "a"),
labels.FromStrings("n", "1", "i", "b"),
},
},
{
matchers: []*labels.Matcher{labels.MustNewMatcher(labels.MatchEqual, "n", "1"), labels.MustNewMatcher(labels.MatchNotRegexp, "i", "^.*$")},
exp: []labels.Labels{},
},
{
matchers: []*labels.Matcher{labels.MustNewMatcher(labels.MatchEqual, "n", "1"), labels.MustNewMatcher(labels.MatchNotRegexp, "i", "^.+$")},
exp: []labels.Labels{
labels.FromStrings("n", "1"),
},
},
// Combinations.
{
matchers: []*labels.Matcher{labels.MustNewMatcher(labels.MatchEqual, "n", "1"), labels.MustNewMatcher(labels.MatchNotEqual, "i", ""), labels.MustNewMatcher(labels.MatchEqual, "i", "a")},
exp: []labels.Labels{
labels.FromStrings("n", "1", "i", "a"),
},
},
{
matchers: []*labels.Matcher{labels.MustNewMatcher(labels.MatchEqual, "n", "1"), labels.MustNewMatcher(labels.MatchNotEqual, "i", "b"), labels.MustNewMatcher(labels.MatchRegexp, "i", "^(b|a).*$")},
exp: []labels.Labels{
labels.FromStrings("n", "1", "i", "a"),
},
},
// Set optimization for Regex.
// Refer to https://github.com/prometheus/prometheus/issues/2651.
{
matchers: []*labels.Matcher{labels.MustNewMatcher(labels.MatchRegexp, "n", "1|2")},
exp: []labels.Labels{
labels.FromStrings("n", "1"),
labels.FromStrings("n", "1", "i", "a"),
labels.FromStrings("n", "1", "i", "b"),
labels.FromStrings("n", "2"),
},
},
{
matchers: []*labels.Matcher{labels.MustNewMatcher(labels.MatchRegexp, "i", "a|b")},
exp: []labels.Labels{
labels.FromStrings("n", "1", "i", "a"),
labels.FromStrings("n", "1", "i", "b"),
},
},
{
matchers: []*labels.Matcher{labels.MustNewMatcher(labels.MatchRegexp, "i", "(a|b)")},
exp: []labels.Labels{
labels.FromStrings("n", "1", "i", "a"),
labels.FromStrings("n", "1", "i", "b"),
},
},
{
matchers: []*labels.Matcher{labels.MustNewMatcher(labels.MatchRegexp, "n", "x1|2")},
exp: []labels.Labels{
labels.FromStrings("n", "2"),
},
},
{
matchers: []*labels.Matcher{labels.MustNewMatcher(labels.MatchRegexp, "n", "2|2\\.5")},
exp: []labels.Labels{
labels.FromStrings("n", "2"),
labels.FromStrings("n", "2.5"),
},
},
// Empty value.
{
matchers: []*labels.Matcher{labels.MustNewMatcher(labels.MatchRegexp, "i", "c||d")},
exp: []labels.Labels{
labels.FromStrings("n", "1"),
labels.FromStrings("n", "2"),
labels.FromStrings("n", "2.5"),
},
},
{
matchers: []*labels.Matcher{labels.MustNewMatcher(labels.MatchRegexp, "i", "(c||d)")},
exp: []labels.Labels{
labels.FromStrings("n", "1"),
labels.FromStrings("n", "2"),
labels.FromStrings("n", "2.5"),
},
},
}
ir, err := h.Index()
require.NoError(t, err)
for _, c := range cases {
name := ""
for i, matcher := range c.matchers {
if i > 0 {
name += ","
}
name += matcher.String()
}
t.Run(name, func(t *testing.T) {
exp := map[string]struct{}{}
for _, l := range c.exp {
exp[l.String()] = struct{}{}
}
p, err := PostingsForMatchers(ir, c.matchers...)
require.NoError(t, err)
var builder labels.ScratchBuilder
for p.Next() {
require.NoError(t, ir.Series(p.At(), &builder, &[]chunks.Meta{}))
lbls := builder.Labels()
if _, ok := exp[lbls.String()]; !ok {
t.Errorf("Evaluating %v, unexpected result %s", c.matchers, lbls.String())
} else {
delete(exp, lbls.String())
}
}
require.NoError(t, p.Err())
if len(exp) != 0 {
t.Errorf("Evaluating %v, missing results %+v", c.matchers, exp)
}
})
}
}
// TestQuerierIndexQueriesRace tests the index queries with racing appends.
func TestQuerierIndexQueriesRace(t *testing.T) {
const testRepeats = 1000
testCases := []struct {
matchers []*labels.Matcher
}{
{
matchers: []*labels.Matcher{
// This matcher should involve the AllPostings posting list in calculating the posting lists.
labels.MustNewMatcher(labels.MatchNotEqual, labels.MetricName, "metric"),
},
},
{
matchers: []*labels.Matcher{
// The first matcher should be effectively the same as AllPostings, because all series have always_0=0
// If it is evaluated first, then __name__=metric will contain more series than always_0=0.
labels.MustNewMatcher(labels.MatchNotEqual, "always_0", "0"),
labels.MustNewMatcher(labels.MatchEqual, labels.MetricName, "metric"),
},
},
}
for _, c := range testCases {
c := c
t.Run(fmt.Sprintf("%v", c.matchers), func(t *testing.T) {
db := openTestDB(t, DefaultOptions(), nil)
h := db.Head()
t.Cleanup(func() {
require.NoError(t, db.Close())
})
ctx, cancel := context.WithCancel(context.Background())
wg := &sync.WaitGroup{}
wg.Add(1)
go appendSeries(t, ctx, wg, h)
t.Cleanup(wg.Wait)
t.Cleanup(cancel)
for i := 0; i < testRepeats; i++ {
q, err := db.Querier(math.MinInt64, math.MaxInt64)
require.NoError(t, err)
values, _, err := q.LabelValues(ctx, "seq", c.matchers...)
require.NoError(t, err)
require.Emptyf(t, values, `label values for label "seq" should be empty`)
}
})
}
}
func appendSeries(t *testing.T, ctx context.Context, wg *sync.WaitGroup, h *Head) {
defer wg.Done()
for i := 0; ctx.Err() != nil; i++ {
app := h.Appender(context.Background())
_, err := app.Append(0, labels.FromStrings(labels.MetricName, "metric", "seq", strconv.Itoa(i), "always_0", "0"), 0, 0)
require.NoError(t, err)
err = app.Commit()
require.NoError(t, err)
// Throttle down the appends to keep the test somewhat nimble.
time.Sleep(time.Millisecond)
}
}
// TestClose ensures that calling Close more than once doesn't block and doesn't panic.
func TestClose(t *testing.T) {
dir := t.TempDir()
createBlock(t, dir, genSeries(1, 1, 0, 10))
createBlock(t, dir, genSeries(1, 1, 10, 20))
db, err := Open(dir, nil, nil, DefaultOptions(), nil)
if err != nil {
t.Fatalf("Opening test storage failed: %s", err)
}
defer func() {
require.NoError(t, db.Close())
}()
q, err := db.Querier(0, 20)
require.NoError(t, err)
require.NoError(t, q.Close())
require.Error(t, q.Close())
}
func BenchmarkQueries(b *testing.B) {
cases := map[string]labels.Selector{
"Eq Matcher: Expansion - 1": {
labels.MustNewMatcher(labels.MatchEqual, "la", "va"),
},
"Eq Matcher: Expansion - 2": {
labels.MustNewMatcher(labels.MatchEqual, "la", "va"),
labels.MustNewMatcher(labels.MatchEqual, "lb", "vb"),
},
"Eq Matcher: Expansion - 3": {
labels.MustNewMatcher(labels.MatchEqual, "la", "va"),
labels.MustNewMatcher(labels.MatchEqual, "lb", "vb"),
labels.MustNewMatcher(labels.MatchEqual, "lc", "vc"),
},
"Regex Matcher: Expansion - 1": {
labels.MustNewMatcher(labels.MatchRegexp, "la", ".*va"),
},
"Regex Matcher: Expansion - 2": {
labels.MustNewMatcher(labels.MatchRegexp, "la", ".*va"),
labels.MustNewMatcher(labels.MatchRegexp, "lb", ".*vb"),
},
"Regex Matcher: Expansion - 3": {
labels.MustNewMatcher(labels.MatchRegexp, "la", ".*va"),
labels.MustNewMatcher(labels.MatchRegexp, "lb", ".*vb"),
labels.MustNewMatcher(labels.MatchRegexp, "lc", ".*vc"),
},
}
type qt struct {
typ string
querier storage.Querier
}
var queryTypes []qt // We use a slice instead of map to keep the order of test cases consistent.
defer func() {
for _, q := range queryTypes {
// Can't run a check for error here as some of these will fail as
// queryTypes is using the same slice for the different block queriers
// and would have been closed in the previous iteration.
q.querier.Close()
}
}()
for title, selectors := range cases {
for _, nSeries := range []int{10} {
for _, nSamples := range []int64{1000, 10000, 100000} {
dir := b.TempDir()
series := genSeries(nSeries, 5, 1, nSamples)
// Add some common labels to make the matchers select these series.
{
var commonLbls []labels.Label
for _, selector := range selectors {
switch selector.Type {
case labels.MatchEqual:
commonLbls = append(commonLbls, labels.Label{Name: selector.Name, Value: selector.Value})
case labels.MatchRegexp:
commonLbls = append(commonLbls, labels.Label{Name: selector.Name, Value: selector.Value})
}
}
for i := range commonLbls {
s := series[i].(*storage.SeriesEntry)
allLabels := commonLbls
s.Labels().Range(func(l labels.Label) {
allLabels = append(allLabels, l)
})
newS := storage.NewListSeries(labels.New(allLabels...), nil)
newS.SampleIteratorFn = s.SampleIteratorFn
series[i] = newS
}
}
qs := make([]storage.Querier, 0, 10)
for x := 0; x <= 10; x++ {
block, err := OpenBlock(nil, createBlock(b, dir, series), nil)
require.NoError(b, err)
q, err := NewBlockQuerier(block, 1, nSamples)
require.NoError(b, err)
qs = append(qs, q)
}
queryTypes = append(queryTypes, qt{"_1-Block", storage.NewMergeQuerier(qs[:1], nil, storage.ChainedSeriesMerge)})
queryTypes = append(queryTypes, qt{"_3-Blocks", storage.NewMergeQuerier(qs[0:3], nil, storage.ChainedSeriesMerge)})
queryTypes = append(queryTypes, qt{"_10-Blocks", storage.NewMergeQuerier(qs, nil, storage.ChainedSeriesMerge)})
chunkDir := b.TempDir()
head := createHead(b, nil, series, chunkDir)
qHead, err := NewBlockQuerier(NewRangeHead(head, 1, nSamples), 1, nSamples)
require.NoError(b, err)
queryTypes = append(queryTypes, qt{"_Head", qHead})
for _, oooPercentage := range []int{1, 3, 5, 10} {
chunkDir := b.TempDir()
totalOOOSamples := oooPercentage * int(nSamples) / 100
oooSampleFrequency := int(nSamples) / totalOOOSamples
head := createHeadWithOOOSamples(b, nil, series, chunkDir, oooSampleFrequency)
qHead, err := NewBlockQuerier(NewRangeHead(head, 1, nSamples), 1, nSamples)
require.NoError(b, err)
qOOOHead, err := NewBlockQuerier(NewOOORangeHead(head, 1, nSamples), 1, nSamples)
require.NoError(b, err)
queryTypes = append(queryTypes, qt{
fmt.Sprintf("_Head_oooPercent:%d", oooPercentage),
storage.NewMergeQuerier([]storage.Querier{qHead, qOOOHead}, nil, storage.ChainedSeriesMerge),
})
}
for _, q := range queryTypes {
b.Run(title+q.typ+"_nSeries:"+strconv.Itoa(nSeries)+"_nSamples:"+strconv.Itoa(int(nSamples)), func(b *testing.B) {
expExpansions, err := strconv.Atoi(string(title[len(title)-1]))
require.NoError(b, err)
benchQuery(b, expExpansions, q.querier, selectors)
})
}
require.NoError(b, head.Close())
}
}
}
}
func benchQuery(b *testing.B, expExpansions int, q storage.Querier, selectors labels.Selector) {
b.ResetTimer()
b.ReportAllocs()
for i := 0; i < b.N; i++ {
ss := q.Select(context.Background(), false, nil, selectors...)
var actualExpansions int
var it chunkenc.Iterator
for ss.Next() {
s := ss.At()
s.Labels()
it = s.Iterator(it)
for it.Next() != chunkenc.ValNone {
_, _ = it.At()
}
actualExpansions++
}
require.NoError(b, ss.Err())
require.Equal(b, 0, len(ss.Warnings()))
require.Equal(b, expExpansions, actualExpansions)
require.NoError(b, ss.Err())
}
}
// mockMatcherIndex is used to check if the regex matcher works as expected.
type mockMatcherIndex struct{}
func (m mockMatcherIndex) Symbols() index.StringIter { return nil }
func (m mockMatcherIndex) Close() error { return nil }
// SortedLabelValues will return error if it is called.
func (m mockMatcherIndex) SortedLabelValues(context.Context, string, ...*labels.Matcher) ([]string, error) {
return []string{}, errors.New("sorted label values called")
}
// LabelValues will return error if it is called.
func (m mockMatcherIndex) LabelValues(context.Context, string, ...*labels.Matcher) ([]string, error) {
return []string{}, errors.New("label values called")
}
func (m mockMatcherIndex) LabelValueFor(context.Context, storage.SeriesRef, string) (string, error) {
return "", errors.New("label value for called")
}
func (m mockMatcherIndex) LabelNamesFor(ctx context.Context, ids ...storage.SeriesRef) ([]string, error) {
return nil, errors.New("label names for for called")
}
func (m mockMatcherIndex) Postings(context.Context, string, ...string) (index.Postings, error) {
return index.EmptyPostings(), nil
}
func (m mockMatcherIndex) SortedPostings(p index.Postings) index.Postings {
return index.EmptyPostings()
}
func (m mockMatcherIndex) Series(ref storage.SeriesRef, builder *labels.ScratchBuilder, chks *[]chunks.Meta) error {
return nil
}
func (m mockMatcherIndex) LabelNames(context.Context, ...*labels.Matcher) ([]string, error) {
return []string{}, nil
}
func TestPostingsForMatcher(t *testing.T) {
cases := []struct {
matcher *labels.Matcher
hasError bool
}{
{
// Equal label matcher will just return.
matcher: labels.MustNewMatcher(labels.MatchEqual, "test", "test"),
hasError: false,
},
{
// Regex matcher which doesn't have '|' will call Labelvalues()
matcher: labels.MustNewMatcher(labels.MatchRegexp, "test", ".*"),
hasError: true,
},
{
matcher: labels.MustNewMatcher(labels.MatchRegexp, "test", "a|b"),
hasError: false,
},
{
// Test case for double quoted regex matcher
matcher: labels.MustNewMatcher(labels.MatchRegexp, "test", "^(?:a|b)$"),
hasError: true,
},
}
for _, tc := range cases {
ir := &mockMatcherIndex{}
_, err := postingsForMatcher(ir, tc.matcher)
if tc.hasError {
require.Error(t, err)
} else {
require.NoError(t, err)
}
}
}
func TestBlockBaseSeriesSet(t *testing.T) {
type refdSeries struct {
lset labels.Labels
chunks []chunks.Meta
ref storage.SeriesRef
}
cases := []struct {
series []refdSeries
// Postings should be in the sorted order of the series
postings []storage.SeriesRef
expIdxs []int
}{
{
series: []refdSeries{
{
lset: labels.FromStrings("a", "a"),
chunks: []chunks.Meta{
{Ref: 29},
{Ref: 45},
{Ref: 245},
{Ref: 123},
{Ref: 4232},
{Ref: 5344},
{Ref: 121},
},
ref: 12,
},
{
lset: labels.FromStrings("a", "a", "b", "b"),
chunks: []chunks.Meta{
{Ref: 82}, {Ref: 23}, {Ref: 234}, {Ref: 65}, {Ref: 26},
},
ref: 10,
},
{
lset: labels.FromStrings("b", "c"),
chunks: []chunks.Meta{{Ref: 8282}},
ref: 1,
},
{
lset: labels.FromStrings("b", "b"),
chunks: []chunks.Meta{
{Ref: 829}, {Ref: 239}, {Ref: 2349}, {Ref: 659}, {Ref: 269},
},
ref: 108,
},
},
postings: []storage.SeriesRef{12, 13, 10, 108}, // 13 doesn't exist and should just be skipped over.
expIdxs: []int{0, 1, 3},
},
{
series: []refdSeries{
{
lset: labels.FromStrings("a", "a", "b", "b"),
chunks: []chunks.Meta{
{Ref: 82}, {Ref: 23}, {Ref: 234}, {Ref: 65}, {Ref: 26},
},
ref: 10,
},
{
lset: labels.FromStrings("b", "c"),
chunks: []chunks.Meta{{Ref: 8282}},
ref: 3,
},
},
postings: []storage.SeriesRef{},
expIdxs: []int{},
},
}
for _, tc := range cases {
mi := newMockIndex()
for _, s := range tc.series {
require.NoError(t, mi.AddSeries(s.ref, s.lset, s.chunks...))
}
bcs := &blockBaseSeriesSet{
p: index.NewListPostings(tc.postings),
index: mi,
tombstones: tombstones.NewMemTombstones(),
}
i := 0
for bcs.Next() {
si := populateWithDelGenericSeriesIterator{}
si.reset(bcs.blockID, bcs.chunks, bcs.curr.chks, bcs.curr.intervals)
idx := tc.expIdxs[i]
require.Equal(t, tc.series[idx].lset, bcs.curr.labels)
require.Equal(t, tc.series[idx].chunks, si.chks)
i++
}
require.Equal(t, len(tc.expIdxs), i)
require.NoError(t, bcs.Err())
}
}
func BenchmarkHeadChunkQuerier(b *testing.B) {
db := openTestDB(b, nil, nil)
defer func() {
require.NoError(b, db.Close())
}()
// 3h of data.
numTimeseries := 100
app := db.Appender(context.Background())
for i := 0; i < 120*6; i++ {
for j := 0; j < numTimeseries; j++ {
lbls := labels.FromStrings("foo", fmt.Sprintf("bar%d", j))
if i%10 == 0 {
require.NoError(b, app.Commit())
app = db.Appender(context.Background())
}
_, err := app.Append(0, lbls, int64(i*15)*time.Second.Milliseconds(), float64(i*100))
require.NoError(b, err)
}
}
require.NoError(b, app.Commit())
querier, err := db.ChunkQuerier(math.MinInt64, math.MaxInt64)
require.NoError(b, err)
defer func(q storage.ChunkQuerier) {
require.NoError(b, q.Close())
}(querier)
b.ReportAllocs()
b.ResetTimer()
for i := 0; i < b.N; i++ {
ss := querier.Select(context.Background(), false, nil, labels.MustNewMatcher(labels.MatchRegexp, "foo", "bar.*"))
total := 0
for ss.Next() {
cs := ss.At()
it := cs.Iterator(nil)
for it.Next() {
m := it.At()
total += m.Chunk.NumSamples()
}
}
_ = total
require.NoError(b, ss.Err())
}
}
func BenchmarkHeadQuerier(b *testing.B) {
db := openTestDB(b, nil, nil)
defer func() {
require.NoError(b, db.Close())
}()
// 3h of data.
numTimeseries := 100
app := db.Appender(context.Background())
for i := 0; i < 120*6; i++ {
for j := 0; j < numTimeseries; j++ {
lbls := labels.FromStrings("foo", fmt.Sprintf("bar%d", j))
if i%10 == 0 {
require.NoError(b, app.Commit())
app = db.Appender(context.Background())
}
_, err := app.Append(0, lbls, int64(i*15)*time.Second.Milliseconds(), float64(i*100))
require.NoError(b, err)
}
}
require.NoError(b, app.Commit())
querier, err := db.Querier(math.MinInt64, math.MaxInt64)
require.NoError(b, err)
defer func(q storage.Querier) {
require.NoError(b, q.Close())
}(querier)
b.ReportAllocs()
b.ResetTimer()
for i := 0; i < b.N; i++ {
ss := querier.Select(context.Background(), false, nil, labels.MustNewMatcher(labels.MatchRegexp, "foo", "bar.*"))
total := int64(0)
for ss.Next() {
cs := ss.At()
it := cs.Iterator(nil)
for it.Next() != chunkenc.ValNone {
ts, _ := it.At()
total += ts
}
}
_ = total
require.NoError(b, ss.Err())
}
}
// This is a regression test for the case where gauge histograms were not handled by
// populateWithDelChunkSeriesIterator correctly.
func TestQueryWithDeletedHistograms(t *testing.T) {
ctx := context.Background()
testcases := map[string]func(int) (*histogram.Histogram, *histogram.FloatHistogram){
"intCounter": func(i int) (*histogram.Histogram, *histogram.FloatHistogram) {
return tsdbutil.GenerateTestHistogram(i), nil
},
"intgauge": func(i int) (*histogram.Histogram, *histogram.FloatHistogram) {
return tsdbutil.GenerateTestGaugeHistogram(rand.Int() % 1000), nil
},
"floatCounter": func(i int) (*histogram.Histogram, *histogram.FloatHistogram) {
return nil, tsdbutil.GenerateTestFloatHistogram(i)
},
"floatGauge": func(i int) (*histogram.Histogram, *histogram.FloatHistogram) {
return nil, tsdbutil.GenerateTestGaugeFloatHistogram(rand.Int() % 1000)
},
}
for name, tc := range testcases {
t.Run(name, func(t *testing.T) {
db := openTestDB(t, nil, nil)
defer func() {
require.NoError(t, db.Close())
}()
db.EnableNativeHistograms()
appender := db.Appender(context.Background())
var (
err error
seriesRef storage.SeriesRef
)
lbs := labels.FromStrings("__name__", "test", "type", name)
for i := 0; i < 100; i++ {
h, fh := tc(i)
seriesRef, err = appender.AppendHistogram(seriesRef, lbs, int64(i), h, fh)
require.NoError(t, err)
}
err = appender.Commit()
require.NoError(t, err)
matcher, err := labels.NewMatcher(labels.MatchEqual, "__name__", "test")
require.NoError(t, err)
// Delete the last 20.
err = db.Delete(ctx, 80, 100, matcher)
require.NoError(t, err)
chunkQuerier, err := db.ChunkQuerier(0, 100)
require.NoError(t, err)
css := chunkQuerier.Select(context.Background(), false, nil, matcher)
seriesCount := 0
for css.Next() {
seriesCount++
series := css.At()
sampleCount := 0
it := series.Iterator(nil)
for it.Next() {
chk := it.At()
for cit := chk.Chunk.Iterator(nil); cit.Next() != chunkenc.ValNone; {
sampleCount++
}
}
require.NoError(t, it.Err())
require.Equal(t, 80, sampleCount)
}
require.NoError(t, css.Err())
require.Equal(t, 1, seriesCount)
})
}
}
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