mirror of
https://github.com/prometheus/prometheus.git
synced 2024-09-20 15:57:31 -07:00
8cdced3850
This is not a verbatim implementation of the Gorilla encoding. First of all, it could not, even if we wanted, because Prometheus has a different chunking model (constant size, not constant time). Second, this adds a number of changes that improve the encoding in general or at least for the specific use case of Prometheus (and are partially only possible in the context of Prometheus). See comments in the code for details.
1249 lines
33 KiB
Go
1249 lines
33 KiB
Go
// Copyright 2014 The Prometheus Authors
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package local
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import (
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"bufio"
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"errors"
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"os"
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"path/filepath"
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"reflect"
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"sync"
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"testing"
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"time"
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"github.com/prometheus/common/model"
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"github.com/prometheus/prometheus/storage/local/codable"
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"github.com/prometheus/prometheus/storage/local/index"
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"github.com/prometheus/prometheus/util/testutil"
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)
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var (
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m1 = model.Metric{"label": "value1"}
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m2 = model.Metric{"label": "value2"}
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m3 = model.Metric{"label": "value3"}
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m4 = model.Metric{"label": "value4"}
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m5 = model.Metric{"label": "value5"}
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)
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func newTestPersistence(t *testing.T, encoding chunkEncoding) (*persistence, testutil.Closer) {
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DefaultChunkEncoding = encoding
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dir := testutil.NewTemporaryDirectory("test_persistence", t)
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p, err := newPersistence(dir.Path(), false, false, func() bool { return false }, 0.1)
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if err != nil {
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dir.Close()
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t.Fatal(err)
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}
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go p.run()
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return p, testutil.NewCallbackCloser(func() {
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p.close()
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dir.Close()
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})
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}
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func buildTestChunks(t *testing.T, encoding chunkEncoding) map[model.Fingerprint][]chunk {
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fps := model.Fingerprints{
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m1.FastFingerprint(),
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m2.FastFingerprint(),
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m3.FastFingerprint(),
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}
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fpToChunks := map[model.Fingerprint][]chunk{}
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for _, fp := range fps {
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fpToChunks[fp] = make([]chunk, 0, 10)
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for i := 0; i < 10; i++ {
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ch, err := newChunkForEncoding(encoding)
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if err != nil {
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t.Fatal(err)
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}
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chs, err := ch.add(model.SamplePair{
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Timestamp: model.Time(i),
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Value: model.SampleValue(fp),
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})
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if err != nil {
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t.Fatal(err)
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}
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fpToChunks[fp] = append(fpToChunks[fp], chs[0])
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}
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}
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return fpToChunks
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}
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func chunksEqual(c1, c2 chunk) bool {
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it1 := c1.newIterator()
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it2 := c2.newIterator()
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for it1.scan() && it2.scan() {
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if !(it1.value() == it2.value()) {
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return false
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}
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}
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return it1.err() == nil && it2.err() == nil
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}
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func testPersistLoadDropChunks(t *testing.T, encoding chunkEncoding) {
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p, closer := newTestPersistence(t, encoding)
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defer closer.Close()
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fpToChunks := buildTestChunks(t, encoding)
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for fp, chunks := range fpToChunks {
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firstTimeNotDropped, offset, numDropped, allDropped, err :=
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p.dropAndPersistChunks(fp, model.Earliest, chunks)
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if err != nil {
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t.Fatal(err)
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}
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if got, want := firstTimeNotDropped, model.Time(0); got != want {
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t.Errorf("Want firstTimeNotDropped %v, got %v.", got, want)
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}
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if got, want := offset, 0; got != want {
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t.Errorf("Want offset %v, got %v.", got, want)
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}
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if got, want := numDropped, 0; got != want {
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t.Errorf("Want numDropped %v, got %v.", got, want)
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}
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if allDropped {
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t.Error("All dropped.")
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}
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}
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for fp, expectedChunks := range fpToChunks {
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indexes := make([]int, 0, len(expectedChunks))
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for i := range expectedChunks {
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indexes = append(indexes, i)
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}
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actualChunks, err := p.loadChunks(fp, indexes, 0)
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if err != nil {
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t.Fatal(err)
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}
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for _, i := range indexes {
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if !chunksEqual(expectedChunks[i], actualChunks[i]) {
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t.Errorf("%d. Chunks not equal.", i)
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}
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}
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// Load all chunk descs.
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actualChunkDescs, err := p.loadChunkDescs(fp, 0)
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if len(actualChunkDescs) != 10 {
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t.Errorf("Got %d chunkDescs, want %d.", len(actualChunkDescs), 10)
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}
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for i, cd := range actualChunkDescs {
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lastTime, err := cd.lastTime()
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if err != nil {
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t.Fatal(err)
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}
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if cd.firstTime() != model.Time(i) || lastTime != model.Time(i) {
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t.Errorf(
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"Want ts=%v, got firstTime=%v, lastTime=%v.",
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i, cd.firstTime(), lastTime,
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)
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}
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}
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// Load chunk descs partially.
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actualChunkDescs, err = p.loadChunkDescs(fp, 5)
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if len(actualChunkDescs) != 5 {
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t.Errorf("Got %d chunkDescs, want %d.", len(actualChunkDescs), 5)
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}
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for i, cd := range actualChunkDescs {
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lastTime, err := cd.lastTime()
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if err != nil {
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t.Fatal(err)
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}
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if cd.firstTime() != model.Time(i) || lastTime != model.Time(i) {
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t.Errorf(
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"Want ts=%v, got firstTime=%v, lastTime=%v.",
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i, cd.firstTime(), lastTime,
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)
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}
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}
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}
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// Drop half of the chunks.
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for fp, expectedChunks := range fpToChunks {
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firstTime, offset, numDropped, allDropped, err := p.dropAndPersistChunks(fp, 5, nil)
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if err != nil {
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t.Fatal(err)
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}
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if offset != 5 {
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t.Errorf("want offset 5, got %d", offset)
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}
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if firstTime != 5 {
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t.Errorf("want first time 5, got %d", firstTime)
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}
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if numDropped != 5 {
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t.Errorf("want 5 dropped chunks, got %v", numDropped)
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}
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if allDropped {
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t.Error("all chunks dropped")
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}
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indexes := make([]int, 5)
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for i := range indexes {
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indexes[i] = i
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}
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actualChunks, err := p.loadChunks(fp, indexes, 0)
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if err != nil {
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t.Fatal(err)
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}
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for _, i := range indexes {
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if !chunksEqual(expectedChunks[i+5], actualChunks[i]) {
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t.Errorf("%d. Chunks not equal.", i)
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}
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}
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}
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// Drop all the chunks.
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for fp := range fpToChunks {
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firstTime, offset, numDropped, allDropped, err := p.dropAndPersistChunks(fp, 100, nil)
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if firstTime != 0 {
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t.Errorf("want first time 0, got %d", firstTime)
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}
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if err != nil {
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t.Fatal(err)
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}
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if offset != 0 {
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t.Errorf("want offset 0, got %d", offset)
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}
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if numDropped != 5 {
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t.Errorf("want 5 dropped chunks, got %v", numDropped)
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}
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if !allDropped {
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t.Error("not all chunks dropped")
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}
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}
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// Re-add first two of the chunks.
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for fp, chunks := range fpToChunks {
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firstTimeNotDropped, offset, numDropped, allDropped, err :=
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p.dropAndPersistChunks(fp, model.Earliest, chunks[:2])
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if err != nil {
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t.Fatal(err)
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}
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if got, want := firstTimeNotDropped, model.Time(0); got != want {
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t.Errorf("Want firstTimeNotDropped %v, got %v.", got, want)
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}
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if got, want := offset, 0; got != want {
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t.Errorf("Want offset %v, got %v.", got, want)
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}
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if got, want := numDropped, 0; got != want {
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t.Errorf("Want numDropped %v, got %v.", got, want)
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}
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if allDropped {
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t.Error("All dropped.")
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}
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}
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// Drop the first of the chunks while adding two more.
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for fp, chunks := range fpToChunks {
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firstTime, offset, numDropped, allDropped, err := p.dropAndPersistChunks(fp, 1, chunks[2:4])
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if err != nil {
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t.Fatal(err)
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}
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if offset != 1 {
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t.Errorf("want offset 1, got %d", offset)
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}
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if firstTime != 1 {
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t.Errorf("want first time 1, got %d", firstTime)
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}
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if numDropped != 1 {
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t.Errorf("want 1 dropped chunk, got %v", numDropped)
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}
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if allDropped {
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t.Error("all chunks dropped")
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}
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wantChunks := chunks[1:4]
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indexes := make([]int, len(wantChunks))
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for i := range indexes {
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indexes[i] = i
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}
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gotChunks, err := p.loadChunks(fp, indexes, 0)
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if err != nil {
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t.Fatal(err)
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}
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for i, wantChunk := range wantChunks {
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if !chunksEqual(wantChunk, gotChunks[i]) {
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t.Errorf("%d. Chunks not equal.", i)
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}
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}
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}
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// Drop all the chunks while adding two more.
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for fp, chunks := range fpToChunks {
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firstTime, offset, numDropped, allDropped, err := p.dropAndPersistChunks(fp, 4, chunks[4:6])
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if err != nil {
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t.Fatal(err)
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}
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if offset != 0 {
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t.Errorf("want offset 0, got %d", offset)
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}
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if firstTime != 4 {
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t.Errorf("want first time 4, got %d", firstTime)
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}
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if numDropped != 3 {
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t.Errorf("want 3 dropped chunks, got %v", numDropped)
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}
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if allDropped {
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t.Error("all chunks dropped")
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}
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wantChunks := chunks[4:6]
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indexes := make([]int, len(wantChunks))
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for i := range indexes {
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indexes[i] = i
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}
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gotChunks, err := p.loadChunks(fp, indexes, 0)
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if err != nil {
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t.Fatal(err)
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}
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for i, wantChunk := range wantChunks {
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if !chunksEqual(wantChunk, gotChunks[i]) {
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t.Errorf("%d. Chunks not equal.", i)
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}
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}
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}
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// While adding two more, drop all but one of the added ones.
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for fp, chunks := range fpToChunks {
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firstTime, offset, numDropped, allDropped, err := p.dropAndPersistChunks(fp, 7, chunks[6:8])
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if err != nil {
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t.Fatal(err)
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}
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if offset != 0 {
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t.Errorf("want offset 0, got %d", offset)
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}
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if firstTime != 7 {
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t.Errorf("want first time 7, got %d", firstTime)
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}
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if numDropped != 3 {
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t.Errorf("want 3 dropped chunks, got %v", numDropped)
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}
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if allDropped {
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t.Error("all chunks dropped")
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}
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wantChunks := chunks[7:8]
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indexes := make([]int, len(wantChunks))
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for i := range indexes {
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indexes[i] = i
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}
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gotChunks, err := p.loadChunks(fp, indexes, 0)
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if err != nil {
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t.Fatal(err)
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}
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for i, wantChunk := range wantChunks {
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if !chunksEqual(wantChunk, gotChunks[i]) {
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t.Errorf("%d. Chunks not equal.", i)
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}
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}
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}
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// While adding two more, drop all chunks including the added ones.
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for fp, chunks := range fpToChunks {
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firstTime, offset, numDropped, allDropped, err := p.dropAndPersistChunks(fp, 10, chunks[8:])
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if err != nil {
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t.Fatal(err)
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}
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if offset != 0 {
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t.Errorf("want offset 0, got %d", offset)
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}
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if firstTime != 0 {
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t.Errorf("want first time 0, got %d", firstTime)
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}
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if numDropped != 3 {
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t.Errorf("want 3 dropped chunks, got %v", numDropped)
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}
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if !allDropped {
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t.Error("not all chunks dropped")
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}
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}
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// Now set minShrinkRatio to 0.25 and play with it.
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p.minShrinkRatio = 0.25
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// Re-add 8 chunks.
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for fp, chunks := range fpToChunks {
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firstTimeNotDropped, offset, numDropped, allDropped, err :=
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p.dropAndPersistChunks(fp, model.Earliest, chunks[:8])
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if err != nil {
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t.Fatal(err)
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}
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if got, want := firstTimeNotDropped, model.Time(0); got != want {
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t.Errorf("Want firstTimeNotDropped %v, got %v.", got, want)
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}
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if got, want := offset, 0; got != want {
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t.Errorf("Want offset %v, got %v.", got, want)
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}
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if got, want := numDropped, 0; got != want {
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t.Errorf("Want numDropped %v, got %v.", got, want)
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}
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if allDropped {
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t.Error("All dropped.")
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}
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}
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// Drop only the first chunk should not happen, but persistence should still work.
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for fp, chunks := range fpToChunks {
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firstTime, offset, numDropped, allDropped, err := p.dropAndPersistChunks(fp, 1, chunks[8:9])
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if err != nil {
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t.Fatal(err)
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}
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if offset != 8 {
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t.Errorf("want offset 8, got %d", offset)
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}
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if firstTime != 0 {
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t.Errorf("want first time 0, got %d", firstTime)
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}
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if numDropped != 0 {
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t.Errorf("want 0 dropped chunk, got %v", numDropped)
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}
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if allDropped {
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t.Error("all chunks dropped")
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}
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}
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// Drop only the first two chunks should not happen, either.
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for fp := range fpToChunks {
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firstTime, offset, numDropped, allDropped, err := p.dropAndPersistChunks(fp, 2, nil)
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if err != nil {
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t.Fatal(err)
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}
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if offset != 0 {
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t.Errorf("want offset 0, got %d", offset)
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}
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if firstTime != 0 {
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t.Errorf("want first time 0, got %d", firstTime)
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}
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if numDropped != 0 {
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t.Errorf("want 0 dropped chunk, got %v", numDropped)
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}
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if allDropped {
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t.Error("all chunks dropped")
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}
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}
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// Drop the first three chunks should finally work.
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for fp, chunks := range fpToChunks {
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firstTime, offset, numDropped, allDropped, err := p.dropAndPersistChunks(fp, 3, chunks[9:])
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if err != nil {
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t.Fatal(err)
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}
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if offset != 6 {
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t.Errorf("want offset 6, got %d", offset)
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}
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if firstTime != 3 {
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t.Errorf("want first time 3, got %d", firstTime)
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}
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if numDropped != 3 {
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t.Errorf("want 3 dropped chunk, got %v", numDropped)
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}
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if allDropped {
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t.Error("all chunks dropped")
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}
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}
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}
|
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|
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func TestPersistLoadDropChunksType0(t *testing.T) {
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testPersistLoadDropChunks(t, 0)
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}
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func TestPersistLoadDropChunksType1(t *testing.T) {
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testPersistLoadDropChunks(t, 1)
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}
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|
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func testCheckpointAndLoadSeriesMapAndHeads(t *testing.T, encoding chunkEncoding) {
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p, closer := newTestPersistence(t, encoding)
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defer closer.Close()
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fpLocker := newFingerprintLocker(10)
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sm := newSeriesMap()
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s1, _ := newMemorySeries(m1, nil, time.Time{})
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s2, _ := newMemorySeries(m2, nil, time.Time{})
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s3, _ := newMemorySeries(m3, nil, time.Time{})
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s4, _ := newMemorySeries(m4, nil, time.Time{})
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s5, _ := newMemorySeries(m5, nil, time.Time{})
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s1.add(model.SamplePair{Timestamp: 1, Value: 3.14})
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s3.add(model.SamplePair{Timestamp: 2, Value: 2.7})
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s3.headChunkClosed = true
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s3.persistWatermark = 1
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for i := 0; i < 10000; i++ {
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s4.add(model.SamplePair{
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Timestamp: model.Time(i),
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Value: model.SampleValue(i) / 2,
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})
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s5.add(model.SamplePair{
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Timestamp: model.Time(i),
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Value: model.SampleValue(i * i),
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})
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}
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s5.persistWatermark = 3
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chunkCountS4 := len(s4.chunkDescs)
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chunkCountS5 := len(s5.chunkDescs)
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sm.put(m1.FastFingerprint(), s1)
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sm.put(m2.FastFingerprint(), s2)
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sm.put(m3.FastFingerprint(), s3)
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sm.put(m4.FastFingerprint(), s4)
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sm.put(m5.FastFingerprint(), s5)
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if err := p.checkpointSeriesMapAndHeads(sm, fpLocker); err != nil {
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t.Fatal(err)
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}
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|
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loadedSM, _, err := p.loadSeriesMapAndHeads()
|
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if err != nil {
|
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t.Fatal(err)
|
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}
|
|
if loadedSM.length() != 4 {
|
|
t.Errorf("want 4 series in map, got %d", loadedSM.length())
|
|
}
|
|
if loadedS1, ok := loadedSM.get(m1.FastFingerprint()); ok {
|
|
if !reflect.DeepEqual(loadedS1.metric, m1) {
|
|
t.Errorf("want metric %v, got %v", m1, loadedS1.metric)
|
|
}
|
|
if !reflect.DeepEqual(loadedS1.head().c, s1.head().c) {
|
|
t.Error("head chunks differ")
|
|
}
|
|
if loadedS1.chunkDescsOffset != 0 {
|
|
t.Errorf("want chunkDescsOffset 0, got %d", loadedS1.chunkDescsOffset)
|
|
}
|
|
if loadedS1.headChunkClosed {
|
|
t.Error("headChunkClosed is true")
|
|
}
|
|
if loadedS1.head().chunkFirstTime != 1 {
|
|
t.Errorf("want chunkFirstTime in head chunk to be 1, got %d", loadedS1.head().chunkFirstTime)
|
|
}
|
|
if loadedS1.head().chunkLastTime != model.Earliest {
|
|
t.Error("want chunkLastTime in head chunk to be unset")
|
|
}
|
|
} else {
|
|
t.Errorf("couldn't find %v in loaded map", m1)
|
|
}
|
|
if loadedS3, ok := loadedSM.get(m3.FastFingerprint()); ok {
|
|
if !reflect.DeepEqual(loadedS3.metric, m3) {
|
|
t.Errorf("want metric %v, got %v", m3, loadedS3.metric)
|
|
}
|
|
if loadedS3.head().c != nil {
|
|
t.Error("head chunk not evicted")
|
|
}
|
|
if loadedS3.chunkDescsOffset != 0 {
|
|
t.Errorf("want chunkDescsOffset 0, got %d", loadedS3.chunkDescsOffset)
|
|
}
|
|
if !loadedS3.headChunkClosed {
|
|
t.Error("headChunkClosed is false")
|
|
}
|
|
if loadedS3.head().chunkFirstTime != 2 {
|
|
t.Errorf("want chunkFirstTime in head chunk to be 2, got %d", loadedS3.head().chunkFirstTime)
|
|
}
|
|
if loadedS3.head().chunkLastTime != 2 {
|
|
t.Errorf("want chunkLastTime in head chunk to be 2, got %d", loadedS3.head().chunkLastTime)
|
|
}
|
|
} else {
|
|
t.Errorf("couldn't find %v in loaded map", m3)
|
|
}
|
|
if loadedS4, ok := loadedSM.get(m4.FastFingerprint()); ok {
|
|
if !reflect.DeepEqual(loadedS4.metric, m4) {
|
|
t.Errorf("want metric %v, got %v", m4, loadedS4.metric)
|
|
}
|
|
if got, want := len(loadedS4.chunkDescs), chunkCountS4; got != want {
|
|
t.Errorf("got %d chunkDescs, want %d", got, want)
|
|
}
|
|
if got, want := loadedS4.persistWatermark, 0; got != want {
|
|
t.Errorf("got persistWatermark %d, want %d", got, want)
|
|
}
|
|
if loadedS4.chunkDescs[2].isEvicted() {
|
|
t.Error("3rd chunk evicted")
|
|
}
|
|
if loadedS4.chunkDescs[3].isEvicted() {
|
|
t.Error("4th chunk evicted")
|
|
}
|
|
if loadedS4.chunkDescsOffset != 0 {
|
|
t.Errorf("want chunkDescsOffset 0, got %d", loadedS4.chunkDescsOffset)
|
|
}
|
|
if loadedS4.headChunkClosed {
|
|
t.Error("headChunkClosed is true")
|
|
}
|
|
for i, cd := range loadedS4.chunkDescs {
|
|
if cd.chunkFirstTime != cd.c.firstTime() {
|
|
t.Errorf(
|
|
"chunkDesc[%d]: chunkFirstTime not consistent with chunk, want %d, got %d",
|
|
i, cd.c.firstTime(), cd.chunkFirstTime,
|
|
)
|
|
}
|
|
if i == len(loadedS4.chunkDescs)-1 {
|
|
// Head chunk.
|
|
if cd.chunkLastTime != model.Earliest {
|
|
t.Error("want chunkLastTime in head chunk to be unset")
|
|
}
|
|
continue
|
|
}
|
|
lastTime, err := cd.c.newIterator().lastTimestamp()
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if cd.chunkLastTime != lastTime {
|
|
t.Errorf(
|
|
"chunkDesc[%d]: chunkLastTime not consistent with chunk, want %d, got %d",
|
|
i, lastTime, cd.chunkLastTime,
|
|
)
|
|
}
|
|
}
|
|
} else {
|
|
t.Errorf("couldn't find %v in loaded map", m4)
|
|
}
|
|
if loadedS5, ok := loadedSM.get(m5.FastFingerprint()); ok {
|
|
if !reflect.DeepEqual(loadedS5.metric, m5) {
|
|
t.Errorf("want metric %v, got %v", m5, loadedS5.metric)
|
|
}
|
|
if got, want := len(loadedS5.chunkDescs), chunkCountS5; got != want {
|
|
t.Errorf("got %d chunkDescs, want %d", got, want)
|
|
}
|
|
if got, want := loadedS5.persistWatermark, 3; got != want {
|
|
t.Errorf("got persistWatermark %d, want %d", got, want)
|
|
}
|
|
if !loadedS5.chunkDescs[2].isEvicted() {
|
|
t.Error("3rd chunk not evicted")
|
|
}
|
|
if loadedS5.chunkDescs[3].isEvicted() {
|
|
t.Error("4th chunk evicted")
|
|
}
|
|
if loadedS5.chunkDescsOffset != 0 {
|
|
t.Errorf("want chunkDescsOffset 0, got %d", loadedS5.chunkDescsOffset)
|
|
}
|
|
if loadedS5.headChunkClosed {
|
|
t.Error("headChunkClosed is true")
|
|
}
|
|
for i, cd := range loadedS5.chunkDescs {
|
|
if i < 3 {
|
|
// Evicted chunks.
|
|
if cd.chunkFirstTime == model.Earliest {
|
|
t.Errorf("chunkDesc[%d]: chunkLastTime not set", i)
|
|
}
|
|
continue
|
|
}
|
|
if cd.chunkFirstTime != cd.c.firstTime() {
|
|
t.Errorf(
|
|
"chunkDesc[%d]: chunkFirstTime not consistent with chunk, want %d, got %d",
|
|
i, cd.c.firstTime(), cd.chunkFirstTime,
|
|
)
|
|
}
|
|
if i == len(loadedS5.chunkDescs)-1 {
|
|
// Head chunk.
|
|
if cd.chunkLastTime != model.Earliest {
|
|
t.Error("want chunkLastTime in head chunk to be unset")
|
|
}
|
|
continue
|
|
}
|
|
lastTime, err := cd.c.newIterator().lastTimestamp()
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if cd.chunkLastTime != lastTime {
|
|
t.Errorf(
|
|
"chunkDesc[%d]: chunkLastTime not consistent with chunk, want %d, got %d",
|
|
i, cd.chunkLastTime, lastTime,
|
|
)
|
|
}
|
|
}
|
|
} else {
|
|
t.Errorf("couldn't find %v in loaded map", m5)
|
|
}
|
|
}
|
|
|
|
func TestCheckpointAndLoadSeriesMapAndHeadsChunkType0(t *testing.T) {
|
|
testCheckpointAndLoadSeriesMapAndHeads(t, 0)
|
|
}
|
|
|
|
func TestCheckpointAndLoadSeriesMapAndHeadsChunkType1(t *testing.T) {
|
|
testCheckpointAndLoadSeriesMapAndHeads(t, 1)
|
|
}
|
|
|
|
func TestCheckpointAndLoadSeriesMapAndHeadsChunkType2(t *testing.T) {
|
|
testCheckpointAndLoadSeriesMapAndHeads(t, 2)
|
|
}
|
|
|
|
func TestCheckpointAndLoadFPMappings(t *testing.T) {
|
|
p, closer := newTestPersistence(t, 1)
|
|
defer closer.Close()
|
|
|
|
in := fpMappings{
|
|
1: map[string]model.Fingerprint{
|
|
"foo": 1,
|
|
"bar": 2,
|
|
},
|
|
3: map[string]model.Fingerprint{
|
|
"baz": 4,
|
|
},
|
|
}
|
|
|
|
if err := p.checkpointFPMappings(in); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
out, fp, err := p.loadFPMappings()
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if got, want := fp, model.Fingerprint(4); got != want {
|
|
t.Errorf("got highest FP %v, want %v", got, want)
|
|
}
|
|
if !reflect.DeepEqual(in, out) {
|
|
t.Errorf("got collision map %v, want %v", out, in)
|
|
}
|
|
}
|
|
|
|
func testFingerprintsModifiedBefore(t *testing.T, encoding chunkEncoding) {
|
|
p, closer := newTestPersistence(t, encoding)
|
|
defer closer.Close()
|
|
|
|
m1 := model.Metric{"n1": "v1"}
|
|
m2 := model.Metric{"n2": "v2"}
|
|
m3 := model.Metric{"n1": "v2"}
|
|
p.archiveMetric(1, m1, 2, 4)
|
|
p.archiveMetric(2, m2, 1, 6)
|
|
p.archiveMetric(3, m3, 5, 5)
|
|
|
|
expectedFPs := map[model.Time][]model.Fingerprint{
|
|
0: {},
|
|
1: {},
|
|
2: {2},
|
|
3: {1, 2},
|
|
4: {1, 2},
|
|
5: {1, 2},
|
|
6: {1, 2, 3},
|
|
}
|
|
|
|
for ts, want := range expectedFPs {
|
|
got, err := p.fingerprintsModifiedBefore(ts)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if !reflect.DeepEqual(want, got) {
|
|
t.Errorf("timestamp: %v, want FPs %v, got %v", ts, want, got)
|
|
}
|
|
}
|
|
|
|
unarchived, err := p.unarchiveMetric(1)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if !unarchived {
|
|
t.Error("expected actual unarchival")
|
|
}
|
|
unarchived, err = p.unarchiveMetric(1)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if unarchived {
|
|
t.Error("expected no unarchival")
|
|
}
|
|
|
|
expectedFPs = map[model.Time][]model.Fingerprint{
|
|
0: {},
|
|
1: {},
|
|
2: {2},
|
|
3: {2},
|
|
4: {2},
|
|
5: {2},
|
|
6: {2, 3},
|
|
}
|
|
|
|
for ts, want := range expectedFPs {
|
|
got, err := p.fingerprintsModifiedBefore(ts)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if !reflect.DeepEqual(want, got) {
|
|
t.Errorf("timestamp: %v, want FPs %v, got %v", ts, want, got)
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestFingerprintsModifiedBeforeChunkType0(t *testing.T) {
|
|
testFingerprintsModifiedBefore(t, 0)
|
|
}
|
|
|
|
func TestFingerprintsModifiedBeforeChunkType1(t *testing.T) {
|
|
testFingerprintsModifiedBefore(t, 1)
|
|
}
|
|
|
|
func TestFingerprintsModifiedBeforeChunkType2(t *testing.T) {
|
|
testFingerprintsModifiedBefore(t, 2)
|
|
}
|
|
|
|
func testDropArchivedMetric(t *testing.T, encoding chunkEncoding) {
|
|
p, closer := newTestPersistence(t, encoding)
|
|
defer closer.Close()
|
|
|
|
m1 := model.Metric{"n1": "v1"}
|
|
m2 := model.Metric{"n2": "v2"}
|
|
p.archiveMetric(1, m1, 2, 4)
|
|
p.archiveMetric(2, m2, 1, 6)
|
|
p.indexMetric(1, m1)
|
|
p.indexMetric(2, m2)
|
|
p.waitForIndexing()
|
|
|
|
outFPs := p.fingerprintsForLabelPair(model.LabelPair{Name: "n1", Value: "v1"})
|
|
want := model.Fingerprints{1}
|
|
if !reflect.DeepEqual(outFPs, want) {
|
|
t.Errorf("want %#v, got %#v", want, outFPs)
|
|
}
|
|
outFPs = p.fingerprintsForLabelPair(model.LabelPair{Name: "n2", Value: "v2"})
|
|
want = model.Fingerprints{2}
|
|
if !reflect.DeepEqual(outFPs, want) {
|
|
t.Errorf("want %#v, got %#v", want, outFPs)
|
|
}
|
|
if archived, _, _ := p.hasArchivedMetric(1); !archived {
|
|
t.Error("want FP 1 archived")
|
|
}
|
|
if archived, _, _ := p.hasArchivedMetric(2); !archived {
|
|
t.Error("want FP 2 archived")
|
|
}
|
|
|
|
if err := p.purgeArchivedMetric(1); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if err := p.purgeArchivedMetric(3); err != nil {
|
|
// Purging something that has not beet archived is not an error.
|
|
t.Fatal(err)
|
|
}
|
|
p.waitForIndexing()
|
|
|
|
outFPs = p.fingerprintsForLabelPair(model.LabelPair{Name: "n1", Value: "v1"})
|
|
want = nil
|
|
if !reflect.DeepEqual(outFPs, want) {
|
|
t.Errorf("want %#v, got %#v", want, outFPs)
|
|
}
|
|
outFPs = p.fingerprintsForLabelPair(model.LabelPair{Name: "n2", Value: "v2"})
|
|
want = model.Fingerprints{2}
|
|
if !reflect.DeepEqual(outFPs, want) {
|
|
t.Errorf("want %#v, got %#v", want, outFPs)
|
|
}
|
|
if archived, _, _ := p.hasArchivedMetric(1); archived {
|
|
t.Error("want FP 1 not archived")
|
|
}
|
|
if archived, _, _ := p.hasArchivedMetric(2); !archived {
|
|
t.Error("want FP 2 archived")
|
|
}
|
|
}
|
|
|
|
func TestDropArchivedMetricChunkType0(t *testing.T) {
|
|
testDropArchivedMetric(t, 0)
|
|
}
|
|
|
|
func TestDropArchivedMetricChunkType1(t *testing.T) {
|
|
testDropArchivedMetric(t, 1)
|
|
}
|
|
|
|
func TestDropArchivedMetricChunkType2(t *testing.T) {
|
|
testDropArchivedMetric(t, 2)
|
|
}
|
|
|
|
type incrementalBatch struct {
|
|
fpToMetric index.FingerprintMetricMapping
|
|
expectedLnToLvs index.LabelNameLabelValuesMapping
|
|
expectedLpToFps index.LabelPairFingerprintsMapping
|
|
}
|
|
|
|
func testIndexing(t *testing.T, encoding chunkEncoding) {
|
|
batches := []incrementalBatch{
|
|
{
|
|
fpToMetric: index.FingerprintMetricMapping{
|
|
0: {
|
|
model.MetricNameLabel: "metric_0",
|
|
"label_1": "value_1",
|
|
},
|
|
1: {
|
|
model.MetricNameLabel: "metric_0",
|
|
"label_2": "value_2",
|
|
"label_3": "value_3",
|
|
},
|
|
2: {
|
|
model.MetricNameLabel: "metric_1",
|
|
"label_1": "value_2",
|
|
},
|
|
},
|
|
expectedLnToLvs: index.LabelNameLabelValuesMapping{
|
|
model.MetricNameLabel: codable.LabelValueSet{
|
|
"metric_0": struct{}{},
|
|
"metric_1": struct{}{},
|
|
},
|
|
"label_1": codable.LabelValueSet{
|
|
"value_1": struct{}{},
|
|
"value_2": struct{}{},
|
|
},
|
|
"label_2": codable.LabelValueSet{
|
|
"value_2": struct{}{},
|
|
},
|
|
"label_3": codable.LabelValueSet{
|
|
"value_3": struct{}{},
|
|
},
|
|
},
|
|
expectedLpToFps: index.LabelPairFingerprintsMapping{
|
|
model.LabelPair{
|
|
Name: model.MetricNameLabel,
|
|
Value: "metric_0",
|
|
}: codable.FingerprintSet{0: struct{}{}, 1: struct{}{}},
|
|
model.LabelPair{
|
|
Name: model.MetricNameLabel,
|
|
Value: "metric_1",
|
|
}: codable.FingerprintSet{2: struct{}{}},
|
|
model.LabelPair{
|
|
Name: "label_1",
|
|
Value: "value_1",
|
|
}: codable.FingerprintSet{0: struct{}{}},
|
|
model.LabelPair{
|
|
Name: "label_1",
|
|
Value: "value_2",
|
|
}: codable.FingerprintSet{2: struct{}{}},
|
|
model.LabelPair{
|
|
Name: "label_2",
|
|
Value: "value_2",
|
|
}: codable.FingerprintSet{1: struct{}{}},
|
|
model.LabelPair{
|
|
Name: "label_3",
|
|
Value: "value_3",
|
|
}: codable.FingerprintSet{1: struct{}{}},
|
|
},
|
|
}, {
|
|
fpToMetric: index.FingerprintMetricMapping{
|
|
3: {
|
|
model.MetricNameLabel: "metric_0",
|
|
"label_1": "value_3",
|
|
},
|
|
4: {
|
|
model.MetricNameLabel: "metric_2",
|
|
"label_2": "value_2",
|
|
"label_3": "value_1",
|
|
},
|
|
5: {
|
|
model.MetricNameLabel: "metric_1",
|
|
"label_1": "value_3",
|
|
},
|
|
},
|
|
expectedLnToLvs: index.LabelNameLabelValuesMapping{
|
|
model.MetricNameLabel: codable.LabelValueSet{
|
|
"metric_0": struct{}{},
|
|
"metric_1": struct{}{},
|
|
"metric_2": struct{}{},
|
|
},
|
|
"label_1": codable.LabelValueSet{
|
|
"value_1": struct{}{},
|
|
"value_2": struct{}{},
|
|
"value_3": struct{}{},
|
|
},
|
|
"label_2": codable.LabelValueSet{
|
|
"value_2": struct{}{},
|
|
},
|
|
"label_3": codable.LabelValueSet{
|
|
"value_1": struct{}{},
|
|
"value_3": struct{}{},
|
|
},
|
|
},
|
|
expectedLpToFps: index.LabelPairFingerprintsMapping{
|
|
model.LabelPair{
|
|
Name: model.MetricNameLabel,
|
|
Value: "metric_0",
|
|
}: codable.FingerprintSet{0: struct{}{}, 1: struct{}{}, 3: struct{}{}},
|
|
model.LabelPair{
|
|
Name: model.MetricNameLabel,
|
|
Value: "metric_1",
|
|
}: codable.FingerprintSet{2: struct{}{}, 5: struct{}{}},
|
|
model.LabelPair{
|
|
Name: model.MetricNameLabel,
|
|
Value: "metric_2",
|
|
}: codable.FingerprintSet{4: struct{}{}},
|
|
model.LabelPair{
|
|
Name: "label_1",
|
|
Value: "value_1",
|
|
}: codable.FingerprintSet{0: struct{}{}},
|
|
model.LabelPair{
|
|
Name: "label_1",
|
|
Value: "value_2",
|
|
}: codable.FingerprintSet{2: struct{}{}},
|
|
model.LabelPair{
|
|
Name: "label_1",
|
|
Value: "value_3",
|
|
}: codable.FingerprintSet{3: struct{}{}, 5: struct{}{}},
|
|
model.LabelPair{
|
|
Name: "label_2",
|
|
Value: "value_2",
|
|
}: codable.FingerprintSet{1: struct{}{}, 4: struct{}{}},
|
|
model.LabelPair{
|
|
Name: "label_3",
|
|
Value: "value_1",
|
|
}: codable.FingerprintSet{4: struct{}{}},
|
|
model.LabelPair{
|
|
Name: "label_3",
|
|
Value: "value_3",
|
|
}: codable.FingerprintSet{1: struct{}{}},
|
|
},
|
|
},
|
|
}
|
|
|
|
p, closer := newTestPersistence(t, encoding)
|
|
defer closer.Close()
|
|
|
|
indexedFpsToMetrics := index.FingerprintMetricMapping{}
|
|
for i, b := range batches {
|
|
for fp, m := range b.fpToMetric {
|
|
p.indexMetric(fp, m)
|
|
p.archiveMetric(fp, m, 1, 2)
|
|
indexedFpsToMetrics[fp] = m
|
|
}
|
|
verifyIndexedState(i, t, b, indexedFpsToMetrics, p)
|
|
}
|
|
|
|
for i := len(batches) - 1; i >= 0; i-- {
|
|
b := batches[i]
|
|
verifyIndexedState(i, t, batches[i], indexedFpsToMetrics, p)
|
|
for fp, m := range b.fpToMetric {
|
|
p.unindexMetric(fp, m)
|
|
unarchived, err := p.unarchiveMetric(fp)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if !unarchived {
|
|
t.Errorf("%d. metric not unarchived", i)
|
|
}
|
|
delete(indexedFpsToMetrics, fp)
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestIndexingChunkType0(t *testing.T) {
|
|
testIndexing(t, 0)
|
|
}
|
|
|
|
func TestIndexingChunkType1(t *testing.T) {
|
|
testIndexing(t, 1)
|
|
}
|
|
|
|
func TestIndexingChunkType2(t *testing.T) {
|
|
testIndexing(t, 2)
|
|
}
|
|
|
|
func verifyIndexedState(i int, t *testing.T, b incrementalBatch, indexedFpsToMetrics index.FingerprintMetricMapping, p *persistence) {
|
|
p.waitForIndexing()
|
|
for fp, m := range indexedFpsToMetrics {
|
|
// Compare archived metrics with input metrics.
|
|
mOut, err := p.archivedMetric(fp)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if !mOut.Equal(m) {
|
|
t.Errorf("%d. %v: Got: %s; want %s", i, fp, mOut, m)
|
|
}
|
|
|
|
// Check that archived metrics are in membership index.
|
|
has, first, last := p.hasArchivedMetric(fp)
|
|
if !has {
|
|
t.Errorf("%d. fingerprint %v not found", i, fp)
|
|
}
|
|
if first != 1 || last != 2 {
|
|
t.Errorf(
|
|
"%d. %v: Got first: %d, last %d; want first: %d, last %d",
|
|
i, fp, first, last, 1, 2,
|
|
)
|
|
}
|
|
}
|
|
|
|
// Compare label name -> label values mappings.
|
|
for ln, lvs := range b.expectedLnToLvs {
|
|
outLvs := p.labelValuesForLabelName(ln)
|
|
|
|
outSet := codable.LabelValueSet{}
|
|
for _, lv := range outLvs {
|
|
outSet[lv] = struct{}{}
|
|
}
|
|
|
|
if !reflect.DeepEqual(lvs, outSet) {
|
|
t.Errorf("%d. label values don't match. Got: %v; want %v", i, outSet, lvs)
|
|
}
|
|
}
|
|
|
|
// Compare label pair -> fingerprints mappings.
|
|
for lp, fps := range b.expectedLpToFps {
|
|
outFPs := p.fingerprintsForLabelPair(lp)
|
|
|
|
outSet := codable.FingerprintSet{}
|
|
for _, fp := range outFPs {
|
|
outSet[fp] = struct{}{}
|
|
}
|
|
|
|
if !reflect.DeepEqual(fps, outSet) {
|
|
t.Errorf("%d. %v: fingerprints don't match. Got: %v; want %v", i, lp, outSet, fps)
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestQuranatineSeriesFile(t *testing.T) {
|
|
p, closer := newTestPersistence(t, 1)
|
|
defer closer.Close()
|
|
|
|
verify := func(fp model.Fingerprint, seriesFileShouldExist bool, contentHintFile ...string) {
|
|
var (
|
|
fpStr = fp.String()
|
|
originalFile = p.fileNameForFingerprint(fp)
|
|
quarantinedFile = filepath.Join(p.basePath, "orphaned", fpStr[0:seriesDirNameLen], fpStr[seriesDirNameLen:]+seriesFileSuffix)
|
|
hintFile = filepath.Join(p.basePath, "orphaned", fpStr[0:seriesDirNameLen], fpStr[seriesDirNameLen:]+hintFileSuffix)
|
|
)
|
|
if _, err := os.Stat(originalFile); !os.IsNotExist(err) {
|
|
t.Errorf("Expected file %q to not exist.", originalFile)
|
|
}
|
|
if _, err := os.Stat(quarantinedFile); (os.IsNotExist(err) && seriesFileShouldExist) || (err == nil && !seriesFileShouldExist) {
|
|
t.Errorf("Unexpected state of quarantined file %q. Expected it to exist: %t. os.Stat returned: %s.", quarantinedFile, seriesFileShouldExist, err)
|
|
}
|
|
f, err := os.Open(hintFile)
|
|
defer f.Close()
|
|
if err != nil {
|
|
t.Errorf("Could not open hint file %q: %s", hintFile, err)
|
|
return
|
|
}
|
|
scanner := bufio.NewScanner(f)
|
|
for _, want := range contentHintFile {
|
|
if !scanner.Scan() {
|
|
t.Errorf("Unexpected end of hint file %q.", hintFile)
|
|
return
|
|
}
|
|
got := scanner.Text()
|
|
if want != got {
|
|
t.Errorf("Want hint line %q, got %q.", want, got)
|
|
}
|
|
}
|
|
if scanner.Scan() {
|
|
t.Errorf("Unexpected spurious content in hint file %q: %q", hintFile, scanner.Text())
|
|
}
|
|
}
|
|
|
|
if err := p.quarantineSeriesFile(0, nil, nil); err != nil {
|
|
t.Error(err)
|
|
}
|
|
verify(0, false, "[UNKNOWN METRIC]", "[UNKNOWN REASON]")
|
|
|
|
if err := p.quarantineSeriesFile(
|
|
1, errors.New("file does not exist"),
|
|
nil,
|
|
); err != nil {
|
|
t.Error(err)
|
|
}
|
|
verify(1, false, "[UNKNOWN METRIC]", "file does not exist")
|
|
|
|
if err := p.quarantineSeriesFile(
|
|
2, errors.New("file does not exist"),
|
|
model.Metric{"foo": "bar", "dings": "bums"},
|
|
); err != nil {
|
|
t.Error(err)
|
|
}
|
|
verify(2, false, `{dings="bums", foo="bar"}`, "file does not exist")
|
|
|
|
if err := p.quarantineSeriesFile(
|
|
3, nil,
|
|
model.Metric{"foo": "bar", "dings": "bums"},
|
|
); err != nil {
|
|
t.Error(err)
|
|
}
|
|
verify(3, false, `{dings="bums", foo="bar"}`, "[UNKNOWN REASON]")
|
|
|
|
err := os.Mkdir(filepath.Join(p.basePath, "00"), os.ModePerm)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
f, err := os.Create(p.fileNameForFingerprint(4))
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
f.Close()
|
|
|
|
if err := p.quarantineSeriesFile(
|
|
4, errors.New("file exists"),
|
|
model.Metric{"sound": "cloud"},
|
|
); err != nil {
|
|
t.Error(err)
|
|
}
|
|
verify(4, true, `{sound="cloud"}`, "file exists")
|
|
|
|
if err := p.quarantineSeriesFile(4, nil, nil); err != nil {
|
|
t.Error(err)
|
|
}
|
|
// Overwrites hint file but leaves series file intact.
|
|
verify(4, true, "[UNKNOWN METRIC]", "[UNKNOWN REASON]")
|
|
|
|
if err := p.quarantineSeriesFile(
|
|
4, errors.New("file exists"),
|
|
model.Metric{"sound": "cloud"},
|
|
); err != nil {
|
|
t.Error(err)
|
|
}
|
|
// Overwrites everything.
|
|
verify(4, true, `{sound="cloud"}`, "file exists")
|
|
}
|
|
|
|
var fpStrings = []string{
|
|
"b004b821ca50ba26",
|
|
"b037c21e884e4fc5",
|
|
"b037de1e884e5469",
|
|
}
|
|
|
|
func BenchmarkLoadChunksSequentially(b *testing.B) {
|
|
p := persistence{
|
|
basePath: "fixtures",
|
|
bufPool: sync.Pool{New: func() interface{} { return make([]byte, 0, 3*chunkLenWithHeader) }},
|
|
}
|
|
sequentialIndexes := make([]int, 47)
|
|
for i := range sequentialIndexes {
|
|
sequentialIndexes[i] = i
|
|
}
|
|
|
|
var fp model.Fingerprint
|
|
for i := 0; i < b.N; i++ {
|
|
for _, s := range fpStrings {
|
|
fp, _ = model.FingerprintFromString(s)
|
|
cds, err := p.loadChunks(fp, sequentialIndexes, 0)
|
|
if err != nil {
|
|
b.Error(err)
|
|
}
|
|
if len(cds) == 0 {
|
|
b.Error("could not read any chunks")
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
func BenchmarkLoadChunksRandomly(b *testing.B) {
|
|
p := persistence{
|
|
basePath: "fixtures",
|
|
bufPool: sync.Pool{New: func() interface{} { return make([]byte, 0, 3*chunkLenWithHeader) }},
|
|
}
|
|
randomIndexes := []int{1, 5, 6, 8, 11, 14, 18, 23, 29, 33, 42, 46}
|
|
|
|
var fp model.Fingerprint
|
|
for i := 0; i < b.N; i++ {
|
|
for _, s := range fpStrings {
|
|
fp, _ = model.FingerprintFromString(s)
|
|
cds, err := p.loadChunks(fp, randomIndexes, 0)
|
|
if err != nil {
|
|
b.Error(err)
|
|
}
|
|
if len(cds) == 0 {
|
|
b.Error("could not read any chunks")
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
func BenchmarkLoadChunkDescs(b *testing.B) {
|
|
p := persistence{
|
|
basePath: "fixtures",
|
|
}
|
|
|
|
var fp model.Fingerprint
|
|
for i := 0; i < b.N; i++ {
|
|
for _, s := range fpStrings {
|
|
fp, _ = model.FingerprintFromString(s)
|
|
cds, err := p.loadChunkDescs(fp, 0)
|
|
if err != nil {
|
|
b.Error(err)
|
|
}
|
|
if len(cds) == 0 {
|
|
b.Error("could not read any chunk descs")
|
|
}
|
|
}
|
|
}
|
|
}
|