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433 lines
19 KiB
433 lines
19 KiB
// Copyright 2021 The Prometheus Authors
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package tsdb
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import (
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"context"
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"sync"
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"testing"
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"github.com/stretchr/testify/require"
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"github.com/prometheus/prometheus/model/labels"
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"github.com/prometheus/prometheus/tsdb/chunkenc"
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"github.com/prometheus/prometheus/tsdb/chunks"
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)
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// TestMemSeries_chunk runs a series of tests on memSeries.chunk() calls.
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// It will simulate various conditions to ensure all code paths in that function are covered.
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func TestMemSeries_chunk(t *testing.T) {
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const chunkRange int64 = 100
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const chunkStep int64 = 5
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appendSamples := func(t *testing.T, s *memSeries, start, end int64, cdm *chunks.ChunkDiskMapper) {
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for i := start; i < end; i += chunkStep {
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ok, _ := s.append(i, float64(i), 0, chunkOpts{
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chunkDiskMapper: cdm,
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chunkRange: chunkRange,
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samplesPerChunk: DefaultSamplesPerChunk,
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})
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require.True(t, ok, "sample append failed")
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}
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}
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type setupFn func(*testing.T, *memSeries, *chunks.ChunkDiskMapper)
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type callOutput uint8
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const (
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outOpenHeadChunk callOutput = iota // memSeries.chunk() call returned memSeries.headChunks with headChunk=true & isOpen=true
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outClosedHeadChunk // memSeries.chunk() call returned memSeries.headChunks with headChunk=true & isOpen=false
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outMmappedChunk // memSeries.chunk() call returned a chunk from memSeries.mmappedChunks with headChunk=false
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outErr // memSeries.chunk() call returned an error
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)
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tests := []struct {
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name string
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setup setupFn // optional function called just before the test memSeries.chunk() call
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inputID chunks.HeadChunkID // requested chunk id for memSeries.chunk() call
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expected callOutput
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}{
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{
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name: "call ix=0 on empty memSeries",
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inputID: 0,
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expected: outErr,
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},
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{
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name: "call ix=1 on empty memSeries",
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inputID: 1,
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expected: outErr,
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},
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{
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name: "firstChunkID > ix",
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setup: func(t *testing.T, s *memSeries, cdm *chunks.ChunkDiskMapper) {
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appendSamples(t, s, 0, chunkRange, cdm)
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require.Empty(t, s.mmappedChunks, "wrong number of mmappedChunks")
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require.Equal(t, 1, s.headChunks.len(), "wrong number of headChunks")
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require.Equal(t, int64(0), s.headChunks.oldest().minTime, "wrong minTime on last headChunks element")
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require.Equal(t, chunkRange-chunkStep, s.headChunks.maxTime, "wrong maxTime on first headChunks element")
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s.firstChunkID = 5
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},
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inputID: 1,
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expected: outErr,
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},
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{
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name: "call ix=0 on memSeries with no mmapped chunks",
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setup: func(t *testing.T, s *memSeries, cdm *chunks.ChunkDiskMapper) {
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appendSamples(t, s, 0, chunkRange, cdm)
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require.Empty(t, s.mmappedChunks, "wrong number of mmappedChunks")
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require.Equal(t, 1, s.headChunks.len(), "wrong number of headChunks")
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require.Equal(t, int64(0), s.headChunks.oldest().minTime, "wrong minTime on last headChunks element")
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require.Equal(t, chunkRange-chunkStep, s.headChunks.maxTime, "wrong maxTime on first headChunks element")
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},
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inputID: 0,
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expected: outOpenHeadChunk,
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},
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{
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name: "call ix=1 on memSeries with no mmapped chunks",
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setup: func(t *testing.T, s *memSeries, cdm *chunks.ChunkDiskMapper) {
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appendSamples(t, s, 0, chunkRange, cdm)
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require.Empty(t, s.mmappedChunks, "wrong number of mmappedChunks")
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require.Equal(t, 1, s.headChunks.len(), "wrong number of headChunks")
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require.Equal(t, int64(0), s.headChunks.oldest().minTime, "wrong minTime on last headChunks element")
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require.Equal(t, chunkRange-chunkStep, s.headChunks.maxTime, "wrong maxTime on first headChunks element")
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},
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inputID: 1,
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expected: outErr,
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},
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{
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name: "call ix=10 on memSeries with no mmapped chunks",
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setup: func(t *testing.T, s *memSeries, cdm *chunks.ChunkDiskMapper) {
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appendSamples(t, s, 0, chunkRange, cdm)
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require.Empty(t, s.mmappedChunks, "wrong number of mmappedChunks")
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require.Equal(t, 1, s.headChunks.len(), "wrong number of headChunks")
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require.Equal(t, int64(0), s.headChunks.oldest().minTime, "wrong minTime on last headChunks element")
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require.Equal(t, chunkRange-chunkStep, s.headChunks.maxTime, "wrong maxTime on first headChunks element")
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},
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inputID: 10,
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expected: outErr,
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},
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{
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name: "call ix=0 on memSeries with 3 mmapped chunks",
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setup: func(t *testing.T, s *memSeries, cdm *chunks.ChunkDiskMapper) {
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appendSamples(t, s, 0, chunkRange*4, cdm)
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s.mmapChunks(cdm)
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require.Len(t, s.mmappedChunks, 3, "wrong number of mmappedChunks")
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require.Equal(t, 1, s.headChunks.len(), "wrong number of headChunks")
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require.Equal(t, chunkRange*3, s.headChunks.oldest().minTime, "wrong minTime on last headChunks element")
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require.Equal(t, (chunkRange*4)-chunkStep, s.headChunks.maxTime, "wrong maxTime on first headChunks element")
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},
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inputID: 0,
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expected: outMmappedChunk,
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},
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{
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name: "call ix=1 on memSeries with 3 mmapped chunks",
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setup: func(t *testing.T, s *memSeries, cdm *chunks.ChunkDiskMapper) {
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appendSamples(t, s, 0, chunkRange*4, cdm)
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s.mmapChunks(cdm)
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require.Len(t, s.mmappedChunks, 3, "wrong number of mmappedChunks")
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require.Equal(t, 1, s.headChunks.len(), "wrong number of headChunks")
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require.Equal(t, chunkRange*3, s.headChunks.oldest().minTime, "wrong minTime on last headChunks element")
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require.Equal(t, (chunkRange*4)-chunkStep, s.headChunks.maxTime, "wrong maxTime on first headChunks element")
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},
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inputID: 1,
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expected: outMmappedChunk,
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},
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{
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name: "call ix=3 on memSeries with 3 mmapped chunks",
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setup: func(t *testing.T, s *memSeries, cdm *chunks.ChunkDiskMapper) {
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appendSamples(t, s, 0, chunkRange*4, cdm)
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s.mmapChunks(cdm)
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require.Len(t, s.mmappedChunks, 3, "wrong number of mmappedChunks")
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require.Equal(t, 1, s.headChunks.len(), "wrong number of headChunks")
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require.Equal(t, chunkRange*3, s.headChunks.oldest().minTime, "wrong minTime on last headChunks element")
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require.Equal(t, (chunkRange*4)-chunkStep, s.headChunks.maxTime, "wrong maxTime on first headChunks element")
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},
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inputID: 3,
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expected: outOpenHeadChunk,
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},
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{
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name: "call ix=0 on memSeries with 3 mmapped chunks and no headChunk",
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setup: func(t *testing.T, s *memSeries, cdm *chunks.ChunkDiskMapper) {
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appendSamples(t, s, 0, chunkRange*4, cdm)
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s.mmapChunks(cdm)
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require.Len(t, s.mmappedChunks, 3, "wrong number of mmappedChunks")
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require.Equal(t, 1, s.headChunks.len(), "wrong number of headChunks")
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require.Equal(t, chunkRange*3, s.headChunks.oldest().minTime, "wrong minTime on last headChunks element")
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require.Equal(t, (chunkRange*4)-chunkStep, s.headChunks.maxTime, "wrong maxTime on first headChunks element")
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s.headChunks = nil
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},
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inputID: 0,
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expected: outMmappedChunk,
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},
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{
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name: "call ix=2 on memSeries with 3 mmapped chunks and no headChunk",
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setup: func(t *testing.T, s *memSeries, cdm *chunks.ChunkDiskMapper) {
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appendSamples(t, s, 0, chunkRange*4, cdm)
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s.mmapChunks(cdm)
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require.Len(t, s.mmappedChunks, 3, "wrong number of mmappedChunks")
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require.Equal(t, 1, s.headChunks.len(), "wrong number of headChunks")
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require.Equal(t, chunkRange*3, s.headChunks.oldest().minTime, "wrong minTime on last headChunks element")
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require.Equal(t, (chunkRange*4)-chunkStep, s.headChunks.maxTime, "wrong maxTime on first headChunks element")
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s.headChunks = nil
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},
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inputID: 2,
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expected: outMmappedChunk,
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},
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{
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name: "call ix=3 on memSeries with 3 mmapped chunks and no headChunk",
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setup: func(t *testing.T, s *memSeries, cdm *chunks.ChunkDiskMapper) {
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appendSamples(t, s, 0, chunkRange*4, cdm)
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s.mmapChunks(cdm)
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require.Len(t, s.mmappedChunks, 3, "wrong number of mmappedChunks")
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require.Equal(t, 1, s.headChunks.len(), "wrong number of headChunks")
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require.Equal(t, chunkRange*3, s.headChunks.oldest().minTime, "wrong minTime on last headChunks element")
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require.Equal(t, (chunkRange*4)-chunkStep, s.headChunks.maxTime, "wrong maxTime on first headChunks element")
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s.headChunks = nil
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},
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inputID: 3,
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expected: outErr,
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},
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{
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name: "call ix=1 on memSeries with 3 mmapped chunks and closed ChunkDiskMapper",
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setup: func(t *testing.T, s *memSeries, cdm *chunks.ChunkDiskMapper) {
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appendSamples(t, s, 0, chunkRange*4, cdm)
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s.mmapChunks(cdm)
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require.Len(t, s.mmappedChunks, 3, "wrong number of mmappedChunks")
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require.Equal(t, 1, s.headChunks.len(), "wrong number of headChunks")
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require.Equal(t, chunkRange*3, s.headChunks.oldest().minTime, "wrong minTime on last headChunks element")
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require.Equal(t, (chunkRange*4)-chunkStep, s.headChunks.maxTime, "wrong maxTime on first headChunks element")
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cdm.Close()
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},
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inputID: 1,
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expected: outErr,
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},
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{
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name: "call ix=3 on memSeries with 3 mmapped chunks and closed ChunkDiskMapper",
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setup: func(t *testing.T, s *memSeries, cdm *chunks.ChunkDiskMapper) {
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appendSamples(t, s, 0, chunkRange*4, cdm)
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s.mmapChunks(cdm)
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require.Len(t, s.mmappedChunks, 3, "wrong number of mmappedChunks")
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require.Equal(t, 1, s.headChunks.len(), "wrong number of headChunks")
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require.Equal(t, chunkRange*3, s.headChunks.oldest().minTime, "wrong minTime on last headChunks element")
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require.Equal(t, (chunkRange*4)-chunkStep, s.headChunks.maxTime, "wrong maxTime on first headChunks element")
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cdm.Close()
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},
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inputID: 3,
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expected: outOpenHeadChunk,
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},
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{
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name: "call ix=0 on memSeries with 3 head chunks and no mmapped chunks",
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setup: func(t *testing.T, s *memSeries, cdm *chunks.ChunkDiskMapper) {
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appendSamples(t, s, 0, chunkRange*3, cdm)
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require.Empty(t, s.mmappedChunks, "wrong number of mmappedChunks")
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require.Equal(t, 3, s.headChunks.len(), "wrong number of headChunks")
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require.Equal(t, int64(0), s.headChunks.oldest().minTime, "wrong minTime on last headChunks element")
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require.Equal(t, (chunkRange*3)-chunkStep, s.headChunks.maxTime, "wrong maxTime on first headChunks element")
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},
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inputID: 0,
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expected: outClosedHeadChunk,
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},
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{
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name: "call ix=1 on memSeries with 3 head chunks and no mmapped chunks",
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setup: func(t *testing.T, s *memSeries, cdm *chunks.ChunkDiskMapper) {
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appendSamples(t, s, 0, chunkRange*3, cdm)
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require.Empty(t, s.mmappedChunks, "wrong number of mmappedChunks")
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require.Equal(t, 3, s.headChunks.len(), "wrong number of headChunks")
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require.Equal(t, int64(0), s.headChunks.oldest().minTime, "wrong minTime on last headChunks element")
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require.Equal(t, (chunkRange*3)-chunkStep, s.headChunks.maxTime, "wrong maxTime on first headChunks element")
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},
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inputID: 1,
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expected: outClosedHeadChunk,
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},
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{
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name: "call ix=10 on memSeries with 3 head chunks and no mmapped chunks",
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setup: func(t *testing.T, s *memSeries, cdm *chunks.ChunkDiskMapper) {
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appendSamples(t, s, 0, chunkRange*3, cdm)
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require.Empty(t, s.mmappedChunks, "wrong number of mmappedChunks")
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require.Equal(t, 3, s.headChunks.len(), "wrong number of headChunks")
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require.Equal(t, int64(0), s.headChunks.oldest().minTime, "wrong minTime on last headChunks element")
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require.Equal(t, (chunkRange*3)-chunkStep, s.headChunks.maxTime, "wrong maxTime on first headChunks element")
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},
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inputID: 10,
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expected: outErr,
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},
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{
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name: "call ix=0 on memSeries with 3 head chunks and 3 mmapped chunks",
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setup: func(t *testing.T, s *memSeries, cdm *chunks.ChunkDiskMapper) {
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appendSamples(t, s, 0, chunkRange*4, cdm)
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s.mmapChunks(cdm)
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require.Len(t, s.mmappedChunks, 3, "wrong number of mmappedChunks")
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require.Equal(t, 1, s.headChunks.len(), "wrong number of headChunks")
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appendSamples(t, s, chunkRange*4, chunkRange*6, cdm)
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require.Equal(t, 3, s.headChunks.len(), "wrong number of headChunks")
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require.Len(t, s.mmappedChunks, 3, "wrong number of mmappedChunks")
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require.Equal(t, chunkRange*3, s.headChunks.oldest().minTime, "wrong minTime on last headChunks element")
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require.Equal(t, (chunkRange*6)-chunkStep, s.headChunks.maxTime, "wrong maxTime on first headChunks element")
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},
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inputID: 0,
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expected: outMmappedChunk,
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},
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{
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name: "call ix=2 on memSeries with 3 head chunks and 3 mmapped chunks",
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setup: func(t *testing.T, s *memSeries, cdm *chunks.ChunkDiskMapper) {
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appendSamples(t, s, 0, chunkRange*4, cdm)
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s.mmapChunks(cdm)
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require.Len(t, s.mmappedChunks, 3, "wrong number of mmappedChunks")
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require.Equal(t, 1, s.headChunks.len(), "wrong number of headChunks")
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appendSamples(t, s, chunkRange*4, chunkRange*6, cdm)
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require.Equal(t, 3, s.headChunks.len(), "wrong number of headChunks")
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require.Len(t, s.mmappedChunks, 3, "wrong number of mmappedChunks")
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require.Equal(t, chunkRange*3, s.headChunks.oldest().minTime, "wrong minTime on last headChunks element")
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require.Equal(t, (chunkRange*6)-chunkStep, s.headChunks.maxTime, "wrong maxTime on first headChunks element")
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},
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inputID: 2,
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expected: outMmappedChunk,
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},
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{
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name: "call ix=3 on memSeries with 3 head chunks and 3 mmapped chunks",
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setup: func(t *testing.T, s *memSeries, cdm *chunks.ChunkDiskMapper) {
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appendSamples(t, s, 0, chunkRange*4, cdm)
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s.mmapChunks(cdm)
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require.Len(t, s.mmappedChunks, 3, "wrong number of mmappedChunks")
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require.Equal(t, 1, s.headChunks.len(), "wrong number of headChunks")
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appendSamples(t, s, chunkRange*4, chunkRange*6, cdm)
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require.Equal(t, 3, s.headChunks.len(), "wrong number of headChunks")
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require.Len(t, s.mmappedChunks, 3, "wrong number of mmappedChunks")
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require.Equal(t, chunkRange*3, s.headChunks.oldest().minTime, "wrong minTime on last headChunks element")
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require.Equal(t, (chunkRange*6)-chunkStep, s.headChunks.maxTime, "wrong maxTime on first headChunks element")
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},
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inputID: 3,
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expected: outClosedHeadChunk,
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},
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{
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name: "call ix=5 on memSeries with 3 head chunks and 3 mmapped chunks",
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setup: func(t *testing.T, s *memSeries, cdm *chunks.ChunkDiskMapper) {
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appendSamples(t, s, 0, chunkRange*4, cdm)
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s.mmapChunks(cdm)
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require.Len(t, s.mmappedChunks, 3, "wrong number of mmappedChunks")
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require.Equal(t, 1, s.headChunks.len(), "wrong number of headChunks")
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appendSamples(t, s, chunkRange*4, chunkRange*6, cdm)
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require.Equal(t, 3, s.headChunks.len(), "wrong number of headChunks")
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require.Len(t, s.mmappedChunks, 3, "wrong number of mmappedChunks")
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require.Equal(t, chunkRange*3, s.headChunks.oldest().minTime, "wrong minTime on last headChunks element")
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require.Equal(t, (chunkRange*6)-chunkStep, s.headChunks.maxTime, "wrong maxTime on first headChunks element")
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},
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inputID: 5,
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expected: outOpenHeadChunk,
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},
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{
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name: "call ix=6 on memSeries with 3 head chunks and 3 mmapped chunks",
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setup: func(t *testing.T, s *memSeries, cdm *chunks.ChunkDiskMapper) {
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appendSamples(t, s, 0, chunkRange*4, cdm)
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s.mmapChunks(cdm)
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require.Len(t, s.mmappedChunks, 3, "wrong number of mmappedChunks")
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require.Equal(t, 1, s.headChunks.len(), "wrong number of headChunks")
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appendSamples(t, s, chunkRange*4, chunkRange*6, cdm)
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require.Equal(t, 3, s.headChunks.len(), "wrong number of headChunks")
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require.Len(t, s.mmappedChunks, 3, "wrong number of mmappedChunks")
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require.Equal(t, chunkRange*3, s.headChunks.oldest().minTime, "wrong minTime on last headChunks element")
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require.Equal(t, (chunkRange*6)-chunkStep, s.headChunks.maxTime, "wrong maxTime on first headChunks element")
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},
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inputID: 6,
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expected: outErr,
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},
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{
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name: "call ix=10 on memSeries with 3 head chunks and 3 mmapped chunks",
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setup: func(t *testing.T, s *memSeries, cdm *chunks.ChunkDiskMapper) {
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appendSamples(t, s, 0, chunkRange*4, cdm)
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s.mmapChunks(cdm)
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require.Len(t, s.mmappedChunks, 3, "wrong number of mmappedChunks")
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require.Equal(t, 1, s.headChunks.len(), "wrong number of headChunks")
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appendSamples(t, s, chunkRange*4, chunkRange*6, cdm)
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require.Equal(t, 3, s.headChunks.len(), "wrong number of headChunks")
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require.Len(t, s.mmappedChunks, 3, "wrong number of mmappedChunks")
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require.Equal(t, chunkRange*3, s.headChunks.oldest().minTime, "wrong minTime on last headChunks element")
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require.Equal(t, (chunkRange*6)-chunkStep, s.headChunks.maxTime, "wrong maxTime on first headChunks element")
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},
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inputID: 10,
|
|
expected: outErr,
|
|
},
|
|
}
|
|
|
|
memChunkPool := &sync.Pool{
|
|
New: func() interface{} {
|
|
return &memChunk{}
|
|
},
|
|
}
|
|
|
|
for _, tc := range tests {
|
|
t.Run(tc.name, func(t *testing.T) {
|
|
dir := t.TempDir()
|
|
chunkDiskMapper, err := chunks.NewChunkDiskMapper(nil, dir, chunkenc.NewPool(), chunks.DefaultWriteBufferSize, chunks.DefaultWriteQueueSize)
|
|
require.NoError(t, err)
|
|
defer func() {
|
|
require.NoError(t, chunkDiskMapper.Close())
|
|
}()
|
|
|
|
series := newMemSeries(labels.EmptyLabels(), 1, 0, true)
|
|
|
|
if tc.setup != nil {
|
|
tc.setup(t, series, chunkDiskMapper)
|
|
}
|
|
|
|
chk, headChunk, isOpen, err := series.chunk(tc.inputID, chunkDiskMapper, memChunkPool)
|
|
switch tc.expected {
|
|
case outOpenHeadChunk:
|
|
require.NoError(t, err, "unexpected error")
|
|
require.True(t, headChunk, "expected a chunk with headChunk=true but got headChunk=%v", headChunk)
|
|
require.True(t, isOpen, "expected a chunk with isOpen=true but got isOpen=%v", isOpen)
|
|
case outClosedHeadChunk:
|
|
require.NoError(t, err, "unexpected error")
|
|
require.True(t, headChunk, "expected a chunk with headChunk=true but got headChunk=%v", headChunk)
|
|
require.False(t, isOpen, "expected a chunk with isOpen=false but got isOpen=%v", isOpen)
|
|
case outMmappedChunk:
|
|
require.NoError(t, err, "unexpected error")
|
|
require.False(t, headChunk, "expected a chunk with headChunk=false but got gc=%v", headChunk)
|
|
case outErr:
|
|
require.Nil(t, chk, "got a non-nil chunk reference returned with an error")
|
|
require.Error(t, err)
|
|
}
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestHeadIndexReader_PostingsForLabelMatching(t *testing.T) {
|
|
testPostingsForLabelMatching(t, 0, func(t *testing.T, series []labels.Labels) IndexReader {
|
|
opts := DefaultHeadOptions()
|
|
opts.ChunkRange = 1000
|
|
opts.ChunkDirRoot = t.TempDir()
|
|
h, err := NewHead(nil, nil, nil, nil, opts, nil)
|
|
require.NoError(t, err)
|
|
t.Cleanup(func() {
|
|
require.NoError(t, h.Close())
|
|
})
|
|
app := h.Appender(context.Background())
|
|
for _, s := range series {
|
|
app.Append(0, s, 0, 0)
|
|
}
|
|
require.NoError(t, app.Commit())
|
|
|
|
ir, err := h.Index()
|
|
require.NoError(t, err)
|
|
return ir
|
|
})
|
|
}
|