mirror of
https://github.com/prometheus/prometheus.git
synced 2024-11-09 23:24:05 -08:00
10a82f87fd
The 'ToFloat' method on integer histograms currently allocates new memory each time it is called. This commit adds an optional *FloatHistogram parameter that can be used to reuse span and bucket slices. It is up to the caller to make sure the input float histogram is not used anymore after the call. Signed-off-by: Filip Petkovski <filip.petkovsky@gmail.com>
691 lines
19 KiB
Go
691 lines
19 KiB
Go
// Copyright 2018 The Prometheus Authors
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
package wlog
|
|
|
|
import (
|
|
"fmt"
|
|
"math/rand"
|
|
"os"
|
|
"path"
|
|
"sync"
|
|
"testing"
|
|
"time"
|
|
|
|
"github.com/go-kit/log"
|
|
"github.com/prometheus/client_golang/prometheus"
|
|
"github.com/stretchr/testify/require"
|
|
|
|
"github.com/prometheus/prometheus/model/histogram"
|
|
"github.com/prometheus/prometheus/model/labels"
|
|
"github.com/prometheus/prometheus/tsdb/chunks"
|
|
"github.com/prometheus/prometheus/tsdb/record"
|
|
)
|
|
|
|
var (
|
|
defaultRetryInterval = 100 * time.Millisecond
|
|
defaultRetries = 100
|
|
wMetrics = NewWatcherMetrics(prometheus.DefaultRegisterer)
|
|
)
|
|
|
|
// retry executes f() n times at each interval until it returns true.
|
|
func retry(t *testing.T, interval time.Duration, n int, f func() bool) {
|
|
t.Helper()
|
|
ticker := time.NewTicker(interval)
|
|
for i := 0; i <= n; i++ {
|
|
if f() {
|
|
return
|
|
}
|
|
<-ticker.C
|
|
}
|
|
ticker.Stop()
|
|
t.Logf("function returned false")
|
|
}
|
|
|
|
type writeToMock struct {
|
|
samplesAppended int
|
|
exemplarsAppended int
|
|
histogramsAppended int
|
|
floatHistogramsAppended int
|
|
seriesLock sync.Mutex
|
|
seriesSegmentIndexes map[chunks.HeadSeriesRef]int
|
|
}
|
|
|
|
func (wtm *writeToMock) Append(s []record.RefSample) bool {
|
|
wtm.samplesAppended += len(s)
|
|
return true
|
|
}
|
|
|
|
func (wtm *writeToMock) AppendExemplars(e []record.RefExemplar) bool {
|
|
wtm.exemplarsAppended += len(e)
|
|
return true
|
|
}
|
|
|
|
func (wtm *writeToMock) AppendHistograms(h []record.RefHistogramSample) bool {
|
|
wtm.histogramsAppended += len(h)
|
|
return true
|
|
}
|
|
|
|
func (wtm *writeToMock) AppendFloatHistograms(fh []record.RefFloatHistogramSample) bool {
|
|
wtm.floatHistogramsAppended += len(fh)
|
|
return true
|
|
}
|
|
|
|
func (wtm *writeToMock) StoreSeries(series []record.RefSeries, index int) {
|
|
wtm.UpdateSeriesSegment(series, index)
|
|
}
|
|
|
|
func (wtm *writeToMock) UpdateSeriesSegment(series []record.RefSeries, index int) {
|
|
wtm.seriesLock.Lock()
|
|
defer wtm.seriesLock.Unlock()
|
|
for _, s := range series {
|
|
wtm.seriesSegmentIndexes[s.Ref] = index
|
|
}
|
|
}
|
|
|
|
func (wtm *writeToMock) SeriesReset(index int) {
|
|
// Check for series that are in segments older than the checkpoint
|
|
// that were not also present in the checkpoint.
|
|
wtm.seriesLock.Lock()
|
|
defer wtm.seriesLock.Unlock()
|
|
for k, v := range wtm.seriesSegmentIndexes {
|
|
if v < index {
|
|
delete(wtm.seriesSegmentIndexes, k)
|
|
}
|
|
}
|
|
}
|
|
|
|
func (wtm *writeToMock) checkNumSeries() int {
|
|
wtm.seriesLock.Lock()
|
|
defer wtm.seriesLock.Unlock()
|
|
return len(wtm.seriesSegmentIndexes)
|
|
}
|
|
|
|
func newWriteToMock() *writeToMock {
|
|
return &writeToMock{
|
|
seriesSegmentIndexes: make(map[chunks.HeadSeriesRef]int),
|
|
}
|
|
}
|
|
|
|
func TestTailSamples(t *testing.T) {
|
|
pageSize := 32 * 1024
|
|
const seriesCount = 10
|
|
const samplesCount = 250
|
|
const exemplarsCount = 25
|
|
const histogramsCount = 50
|
|
for _, compress := range []CompressionType{CompressionNone, CompressionSnappy, CompressionZstd} {
|
|
t.Run(fmt.Sprintf("compress=%s", compress), func(t *testing.T) {
|
|
now := time.Now()
|
|
|
|
dir := t.TempDir()
|
|
|
|
wdir := path.Join(dir, "wal")
|
|
err := os.Mkdir(wdir, 0o777)
|
|
require.NoError(t, err)
|
|
|
|
enc := record.Encoder{}
|
|
w, err := NewSize(nil, nil, wdir, 128*pageSize, compress)
|
|
require.NoError(t, err)
|
|
defer func() {
|
|
require.NoError(t, w.Close())
|
|
}()
|
|
|
|
// Write to the initial segment then checkpoint.
|
|
for i := 0; i < seriesCount; i++ {
|
|
ref := i + 100
|
|
series := enc.Series([]record.RefSeries{
|
|
{
|
|
Ref: chunks.HeadSeriesRef(ref),
|
|
Labels: labels.FromStrings("__name__", fmt.Sprintf("metric_%d", i)),
|
|
},
|
|
}, nil)
|
|
require.NoError(t, w.Log(series))
|
|
|
|
for j := 0; j < samplesCount; j++ {
|
|
inner := rand.Intn(ref + 1)
|
|
sample := enc.Samples([]record.RefSample{
|
|
{
|
|
Ref: chunks.HeadSeriesRef(inner),
|
|
T: now.UnixNano() + 1,
|
|
V: float64(i),
|
|
},
|
|
}, nil)
|
|
require.NoError(t, w.Log(sample))
|
|
}
|
|
|
|
for j := 0; j < exemplarsCount; j++ {
|
|
inner := rand.Intn(ref + 1)
|
|
exemplar := enc.Exemplars([]record.RefExemplar{
|
|
{
|
|
Ref: chunks.HeadSeriesRef(inner),
|
|
T: now.UnixNano() + 1,
|
|
V: float64(i),
|
|
Labels: labels.FromStrings("traceID", fmt.Sprintf("trace-%d", inner)),
|
|
},
|
|
}, nil)
|
|
require.NoError(t, w.Log(exemplar))
|
|
}
|
|
|
|
for j := 0; j < histogramsCount; j++ {
|
|
inner := rand.Intn(ref + 1)
|
|
hist := &histogram.Histogram{
|
|
Schema: 2,
|
|
ZeroThreshold: 1e-128,
|
|
ZeroCount: 0,
|
|
Count: 2,
|
|
Sum: 0,
|
|
PositiveSpans: []histogram.Span{{Offset: 0, Length: 1}},
|
|
PositiveBuckets: []int64{int64(i) + 1},
|
|
NegativeSpans: []histogram.Span{{Offset: 0, Length: 1}},
|
|
NegativeBuckets: []int64{int64(-i) - 1},
|
|
}
|
|
|
|
histogram := enc.HistogramSamples([]record.RefHistogramSample{{
|
|
Ref: chunks.HeadSeriesRef(inner),
|
|
T: now.UnixNano() + 1,
|
|
H: hist,
|
|
}}, nil)
|
|
require.NoError(t, w.Log(histogram))
|
|
|
|
floatHistogram := enc.FloatHistogramSamples([]record.RefFloatHistogramSample{{
|
|
Ref: chunks.HeadSeriesRef(inner),
|
|
T: now.UnixNano() + 1,
|
|
FH: hist.ToFloat(nil),
|
|
}}, nil)
|
|
require.NoError(t, w.Log(floatHistogram))
|
|
}
|
|
}
|
|
|
|
// Start read after checkpoint, no more data written.
|
|
first, last, err := Segments(w.Dir())
|
|
require.NoError(t, err)
|
|
|
|
wt := newWriteToMock()
|
|
watcher := NewWatcher(wMetrics, nil, nil, "", wt, dir, true, true)
|
|
watcher.SetStartTime(now)
|
|
|
|
// Set the Watcher's metrics so they're not nil pointers.
|
|
watcher.setMetrics()
|
|
for i := first; i <= last; i++ {
|
|
segment, err := OpenReadSegment(SegmentName(watcher.walDir, i))
|
|
require.NoError(t, err)
|
|
defer segment.Close()
|
|
|
|
reader := NewLiveReader(nil, NewLiveReaderMetrics(nil), segment)
|
|
// Use tail true so we can ensure we got the right number of samples.
|
|
watcher.readSegment(reader, i, true)
|
|
}
|
|
|
|
expectedSeries := seriesCount
|
|
expectedSamples := seriesCount * samplesCount
|
|
expectedExemplars := seriesCount * exemplarsCount
|
|
expectedHistograms := seriesCount * histogramsCount
|
|
retry(t, defaultRetryInterval, defaultRetries, func() bool {
|
|
return wt.checkNumSeries() >= expectedSeries
|
|
})
|
|
require.Equal(t, expectedSeries, wt.checkNumSeries(), "did not receive the expected number of series")
|
|
require.Equal(t, expectedSamples, wt.samplesAppended, "did not receive the expected number of samples")
|
|
require.Equal(t, expectedExemplars, wt.exemplarsAppended, "did not receive the expected number of exemplars")
|
|
require.Equal(t, expectedHistograms, wt.histogramsAppended, "did not receive the expected number of histograms")
|
|
require.Equal(t, expectedHistograms, wt.floatHistogramsAppended, "did not receive the expected number of float histograms")
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestReadToEndNoCheckpoint(t *testing.T) {
|
|
pageSize := 32 * 1024
|
|
const seriesCount = 10
|
|
const samplesCount = 250
|
|
|
|
for _, compress := range []CompressionType{CompressionNone, CompressionSnappy, CompressionZstd} {
|
|
t.Run(fmt.Sprintf("compress=%s", compress), func(t *testing.T) {
|
|
dir := t.TempDir()
|
|
wdir := path.Join(dir, "wal")
|
|
err := os.Mkdir(wdir, 0o777)
|
|
require.NoError(t, err)
|
|
|
|
w, err := NewSize(nil, nil, wdir, 128*pageSize, compress)
|
|
require.NoError(t, err)
|
|
defer func() {
|
|
require.NoError(t, w.Close())
|
|
}()
|
|
|
|
var recs [][]byte
|
|
|
|
enc := record.Encoder{}
|
|
|
|
for i := 0; i < seriesCount; i++ {
|
|
series := enc.Series([]record.RefSeries{
|
|
{
|
|
Ref: chunks.HeadSeriesRef(i),
|
|
Labels: labels.FromStrings("__name__", fmt.Sprintf("metric_%d", i)),
|
|
},
|
|
}, nil)
|
|
recs = append(recs, series)
|
|
for j := 0; j < samplesCount; j++ {
|
|
sample := enc.Samples([]record.RefSample{
|
|
{
|
|
Ref: chunks.HeadSeriesRef(j),
|
|
T: int64(i),
|
|
V: float64(i),
|
|
},
|
|
}, nil)
|
|
|
|
recs = append(recs, sample)
|
|
|
|
// Randomly batch up records.
|
|
if rand.Intn(4) < 3 {
|
|
require.NoError(t, w.Log(recs...))
|
|
recs = recs[:0]
|
|
}
|
|
}
|
|
}
|
|
require.NoError(t, w.Log(recs...))
|
|
readTimeout = time.Second
|
|
_, _, err = Segments(w.Dir())
|
|
require.NoError(t, err)
|
|
|
|
wt := newWriteToMock()
|
|
watcher := NewWatcher(wMetrics, nil, nil, "", wt, dir, false, false)
|
|
go watcher.Start()
|
|
|
|
expected := seriesCount
|
|
require.Eventually(t, func() bool {
|
|
return wt.checkNumSeries() == expected
|
|
}, 20*time.Second, 1*time.Second)
|
|
watcher.Stop()
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestReadToEndWithCheckpoint(t *testing.T) {
|
|
segmentSize := 32 * 1024
|
|
// We need something similar to this # of series and samples
|
|
// in order to get enough segments for us to checkpoint.
|
|
const seriesCount = 10
|
|
const samplesCount = 250
|
|
|
|
for _, compress := range []CompressionType{CompressionNone, CompressionSnappy, CompressionZstd} {
|
|
t.Run(fmt.Sprintf("compress=%s", compress), func(t *testing.T) {
|
|
dir := t.TempDir()
|
|
|
|
wdir := path.Join(dir, "wal")
|
|
err := os.Mkdir(wdir, 0o777)
|
|
require.NoError(t, err)
|
|
|
|
enc := record.Encoder{}
|
|
w, err := NewSize(nil, nil, wdir, segmentSize, compress)
|
|
require.NoError(t, err)
|
|
defer func() {
|
|
require.NoError(t, w.Close())
|
|
}()
|
|
|
|
// Write to the initial segment then checkpoint.
|
|
for i := 0; i < seriesCount; i++ {
|
|
ref := i + 100
|
|
series := enc.Series([]record.RefSeries{
|
|
{
|
|
Ref: chunks.HeadSeriesRef(ref),
|
|
Labels: labels.FromStrings("__name__", fmt.Sprintf("metric_%d", i)),
|
|
},
|
|
}, nil)
|
|
require.NoError(t, w.Log(series))
|
|
// Add in an unknown record type, which should be ignored.
|
|
require.NoError(t, w.Log([]byte{255}))
|
|
|
|
for j := 0; j < samplesCount; j++ {
|
|
inner := rand.Intn(ref + 1)
|
|
sample := enc.Samples([]record.RefSample{
|
|
{
|
|
Ref: chunks.HeadSeriesRef(inner),
|
|
T: int64(i),
|
|
V: float64(i),
|
|
},
|
|
}, nil)
|
|
require.NoError(t, w.Log(sample))
|
|
}
|
|
}
|
|
|
|
Checkpoint(log.NewNopLogger(), w, 0, 1, func(x chunks.HeadSeriesRef) bool { return true }, 0)
|
|
w.Truncate(1)
|
|
|
|
// Write more records after checkpointing.
|
|
for i := 0; i < seriesCount; i++ {
|
|
series := enc.Series([]record.RefSeries{
|
|
{
|
|
Ref: chunks.HeadSeriesRef(i),
|
|
Labels: labels.FromStrings("__name__", fmt.Sprintf("metric_%d", i)),
|
|
},
|
|
}, nil)
|
|
require.NoError(t, w.Log(series))
|
|
|
|
for j := 0; j < samplesCount; j++ {
|
|
sample := enc.Samples([]record.RefSample{
|
|
{
|
|
Ref: chunks.HeadSeriesRef(j),
|
|
T: int64(i),
|
|
V: float64(i),
|
|
},
|
|
}, nil)
|
|
require.NoError(t, w.Log(sample))
|
|
}
|
|
}
|
|
|
|
_, _, err = Segments(w.Dir())
|
|
require.NoError(t, err)
|
|
readTimeout = time.Second
|
|
wt := newWriteToMock()
|
|
watcher := NewWatcher(wMetrics, nil, nil, "", wt, dir, false, false)
|
|
go watcher.Start()
|
|
|
|
expected := seriesCount * 2
|
|
|
|
require.Eventually(t, func() bool {
|
|
return wt.checkNumSeries() == expected
|
|
}, 10*time.Second, 1*time.Second)
|
|
watcher.Stop()
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestReadCheckpoint(t *testing.T) {
|
|
pageSize := 32 * 1024
|
|
const seriesCount = 10
|
|
const samplesCount = 250
|
|
|
|
for _, compress := range []CompressionType{CompressionNone, CompressionSnappy, CompressionZstd} {
|
|
t.Run(fmt.Sprintf("compress=%s", compress), func(t *testing.T) {
|
|
dir := t.TempDir()
|
|
|
|
wdir := path.Join(dir, "wal")
|
|
err := os.Mkdir(wdir, 0o777)
|
|
require.NoError(t, err)
|
|
|
|
f, err := os.Create(SegmentName(wdir, 30))
|
|
require.NoError(t, err)
|
|
require.NoError(t, f.Close())
|
|
|
|
enc := record.Encoder{}
|
|
w, err := NewSize(nil, nil, wdir, 128*pageSize, compress)
|
|
require.NoError(t, err)
|
|
t.Cleanup(func() {
|
|
require.NoError(t, w.Close())
|
|
})
|
|
|
|
// Write to the initial segment then checkpoint.
|
|
for i := 0; i < seriesCount; i++ {
|
|
ref := i + 100
|
|
series := enc.Series([]record.RefSeries{
|
|
{
|
|
Ref: chunks.HeadSeriesRef(ref),
|
|
Labels: labels.FromStrings("__name__", fmt.Sprintf("metric_%d", i)),
|
|
},
|
|
}, nil)
|
|
require.NoError(t, w.Log(series))
|
|
|
|
for j := 0; j < samplesCount; j++ {
|
|
inner := rand.Intn(ref + 1)
|
|
sample := enc.Samples([]record.RefSample{
|
|
{
|
|
Ref: chunks.HeadSeriesRef(inner),
|
|
T: int64(i),
|
|
V: float64(i),
|
|
},
|
|
}, nil)
|
|
require.NoError(t, w.Log(sample))
|
|
}
|
|
}
|
|
_, err = w.NextSegmentSync()
|
|
require.NoError(t, err)
|
|
_, err = Checkpoint(log.NewNopLogger(), w, 30, 31, func(x chunks.HeadSeriesRef) bool { return true }, 0)
|
|
require.NoError(t, err)
|
|
require.NoError(t, w.Truncate(32))
|
|
|
|
// Start read after checkpoint, no more data written.
|
|
_, _, err = Segments(w.Dir())
|
|
require.NoError(t, err)
|
|
|
|
wt := newWriteToMock()
|
|
watcher := NewWatcher(wMetrics, nil, nil, "", wt, dir, false, false)
|
|
go watcher.Start()
|
|
|
|
expectedSeries := seriesCount
|
|
retry(t, defaultRetryInterval, defaultRetries, func() bool {
|
|
return wt.checkNumSeries() >= expectedSeries
|
|
})
|
|
watcher.Stop()
|
|
require.Equal(t, expectedSeries, wt.checkNumSeries())
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestReadCheckpointMultipleSegments(t *testing.T) {
|
|
pageSize := 32 * 1024
|
|
|
|
const segments = 1
|
|
const seriesCount = 20
|
|
const samplesCount = 300
|
|
|
|
for _, compress := range []CompressionType{CompressionNone, CompressionSnappy, CompressionZstd} {
|
|
t.Run(fmt.Sprintf("compress=%s", compress), func(t *testing.T) {
|
|
dir := t.TempDir()
|
|
|
|
wdir := path.Join(dir, "wal")
|
|
err := os.Mkdir(wdir, 0o777)
|
|
require.NoError(t, err)
|
|
|
|
enc := record.Encoder{}
|
|
w, err := NewSize(nil, nil, wdir, pageSize, compress)
|
|
require.NoError(t, err)
|
|
|
|
// Write a bunch of data.
|
|
for i := 0; i < segments; i++ {
|
|
for j := 0; j < seriesCount; j++ {
|
|
ref := j + (i * 100)
|
|
series := enc.Series([]record.RefSeries{
|
|
{
|
|
Ref: chunks.HeadSeriesRef(ref),
|
|
Labels: labels.FromStrings("__name__", fmt.Sprintf("metric_%d", i)),
|
|
},
|
|
}, nil)
|
|
require.NoError(t, w.Log(series))
|
|
|
|
for k := 0; k < samplesCount; k++ {
|
|
inner := rand.Intn(ref + 1)
|
|
sample := enc.Samples([]record.RefSample{
|
|
{
|
|
Ref: chunks.HeadSeriesRef(inner),
|
|
T: int64(i),
|
|
V: float64(i),
|
|
},
|
|
}, nil)
|
|
require.NoError(t, w.Log(sample))
|
|
}
|
|
}
|
|
}
|
|
require.NoError(t, w.Close())
|
|
|
|
// At this point we should have at least 6 segments, lets create a checkpoint dir of the first 5.
|
|
checkpointDir := dir + "/wal/checkpoint.000004"
|
|
err = os.Mkdir(checkpointDir, 0o777)
|
|
require.NoError(t, err)
|
|
for i := 0; i <= 4; i++ {
|
|
err := os.Rename(SegmentName(dir+"/wal", i), SegmentName(checkpointDir, i))
|
|
require.NoError(t, err)
|
|
}
|
|
|
|
wt := newWriteToMock()
|
|
watcher := NewWatcher(wMetrics, nil, nil, "", wt, dir, false, false)
|
|
watcher.MaxSegment = -1
|
|
|
|
// Set the Watcher's metrics so they're not nil pointers.
|
|
watcher.setMetrics()
|
|
|
|
lastCheckpoint, _, err := LastCheckpoint(watcher.walDir)
|
|
require.NoError(t, err)
|
|
|
|
err = watcher.readCheckpoint(lastCheckpoint, (*Watcher).readSegment)
|
|
require.NoError(t, err)
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestCheckpointSeriesReset(t *testing.T) {
|
|
segmentSize := 32 * 1024
|
|
// We need something similar to this # of series and samples
|
|
// in order to get enough segments for us to checkpoint.
|
|
const seriesCount = 20
|
|
const samplesCount = 350
|
|
testCases := []struct {
|
|
compress CompressionType
|
|
segments int
|
|
}{
|
|
{compress: CompressionNone, segments: 14},
|
|
{compress: CompressionSnappy, segments: 13},
|
|
}
|
|
|
|
for _, tc := range testCases {
|
|
t.Run(fmt.Sprintf("compress=%s", tc.compress), func(t *testing.T) {
|
|
dir := t.TempDir()
|
|
|
|
wdir := path.Join(dir, "wal")
|
|
err := os.Mkdir(wdir, 0o777)
|
|
require.NoError(t, err)
|
|
|
|
enc := record.Encoder{}
|
|
w, err := NewSize(nil, nil, wdir, segmentSize, tc.compress)
|
|
require.NoError(t, err)
|
|
defer func() {
|
|
require.NoError(t, w.Close())
|
|
}()
|
|
|
|
// Write to the initial segment, then checkpoint later.
|
|
for i := 0; i < seriesCount; i++ {
|
|
ref := i + 100
|
|
series := enc.Series([]record.RefSeries{
|
|
{
|
|
Ref: chunks.HeadSeriesRef(ref),
|
|
Labels: labels.FromStrings("__name__", fmt.Sprintf("metric_%d", i)),
|
|
},
|
|
}, nil)
|
|
require.NoError(t, w.Log(series))
|
|
|
|
for j := 0; j < samplesCount; j++ {
|
|
inner := rand.Intn(ref + 1)
|
|
sample := enc.Samples([]record.RefSample{
|
|
{
|
|
Ref: chunks.HeadSeriesRef(inner),
|
|
T: int64(i),
|
|
V: float64(i),
|
|
},
|
|
}, nil)
|
|
require.NoError(t, w.Log(sample))
|
|
}
|
|
}
|
|
|
|
_, _, err = Segments(w.Dir())
|
|
require.NoError(t, err)
|
|
|
|
readTimeout = time.Second
|
|
wt := newWriteToMock()
|
|
watcher := NewWatcher(wMetrics, nil, nil, "", wt, dir, false, false)
|
|
watcher.MaxSegment = -1
|
|
go watcher.Start()
|
|
|
|
expected := seriesCount
|
|
retry(t, defaultRetryInterval, defaultRetries, func() bool {
|
|
return wt.checkNumSeries() >= expected
|
|
})
|
|
require.Eventually(t, func() bool {
|
|
return wt.checkNumSeries() == seriesCount
|
|
}, 10*time.Second, 1*time.Second)
|
|
|
|
_, err = Checkpoint(log.NewNopLogger(), w, 2, 4, func(x chunks.HeadSeriesRef) bool { return true }, 0)
|
|
require.NoError(t, err)
|
|
|
|
err = w.Truncate(5)
|
|
require.NoError(t, err)
|
|
|
|
_, cpi, err := LastCheckpoint(path.Join(dir, "wal"))
|
|
require.NoError(t, err)
|
|
err = watcher.garbageCollectSeries(cpi + 1)
|
|
require.NoError(t, err)
|
|
|
|
watcher.Stop()
|
|
// If you modify the checkpoint and truncate segment #'s run the test to see how
|
|
// many series records you end up with and change the last Equals check accordingly
|
|
// or modify the Equals to Assert(len(wt.seriesLabels) < seriesCount*10)
|
|
require.Eventually(t, func() bool {
|
|
return wt.checkNumSeries() == tc.segments
|
|
}, 20*time.Second, 1*time.Second)
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestRun_StartupTime(t *testing.T) {
|
|
const pageSize = 32 * 1024
|
|
const segments = 10
|
|
const seriesCount = 20
|
|
const samplesCount = 300
|
|
|
|
for _, compress := range []CompressionType{CompressionNone, CompressionSnappy, CompressionZstd} {
|
|
t.Run(string(compress), func(t *testing.T) {
|
|
dir := t.TempDir()
|
|
|
|
wdir := path.Join(dir, "wal")
|
|
err := os.Mkdir(wdir, 0o777)
|
|
require.NoError(t, err)
|
|
|
|
enc := record.Encoder{}
|
|
w, err := NewSize(nil, nil, wdir, pageSize, compress)
|
|
require.NoError(t, err)
|
|
|
|
for i := 0; i < segments; i++ {
|
|
for j := 0; j < seriesCount; j++ {
|
|
ref := j + (i * 100)
|
|
series := enc.Series([]record.RefSeries{
|
|
{
|
|
Ref: chunks.HeadSeriesRef(ref),
|
|
Labels: labels.FromStrings("__name__", fmt.Sprintf("metric_%d", i)),
|
|
},
|
|
}, nil)
|
|
require.NoError(t, w.Log(series))
|
|
|
|
for k := 0; k < samplesCount; k++ {
|
|
inner := rand.Intn(ref + 1)
|
|
sample := enc.Samples([]record.RefSample{
|
|
{
|
|
Ref: chunks.HeadSeriesRef(inner),
|
|
T: int64(i),
|
|
V: float64(i),
|
|
},
|
|
}, nil)
|
|
require.NoError(t, w.Log(sample))
|
|
}
|
|
}
|
|
}
|
|
require.NoError(t, w.Close())
|
|
|
|
wt := newWriteToMock()
|
|
watcher := NewWatcher(wMetrics, nil, nil, "", wt, dir, false, false)
|
|
watcher.MaxSegment = segments
|
|
|
|
watcher.setMetrics()
|
|
startTime := time.Now()
|
|
|
|
err = watcher.Run()
|
|
require.Less(t, time.Since(startTime), readTimeout)
|
|
require.NoError(t, err)
|
|
})
|
|
}
|
|
}
|