|
| 1 | +package ingester |
| 2 | + |
| 3 | +import ( |
| 4 | + "context" |
| 5 | + "testing" |
| 6 | + "time" |
| 7 | + |
| 8 | + "github.com/go-kit/log" |
| 9 | + "github.com/oklog/ulid/v2" |
| 10 | + "github.com/prometheus/prometheus/model/labels" |
| 11 | + "github.com/prometheus/prometheus/storage" |
| 12 | + "github.com/prometheus/prometheus/tsdb" |
| 13 | + "github.com/prometheus/prometheus/tsdb/chunks" |
| 14 | + "github.com/prometheus/prometheus/tsdb/tombstones" |
| 15 | + "github.com/prometheus/prometheus/util/annotations" |
| 16 | + "github.com/stretchr/testify/assert" |
| 17 | + "github.com/stretchr/testify/require" |
| 18 | +) |
| 19 | + |
| 20 | +func TestIsHead(t *testing.T) { |
| 21 | + tests := []struct { |
| 22 | + name string |
| 23 | + ulid ulid.ULID |
| 24 | + expected bool |
| 25 | + }{ |
| 26 | + {"rangeHead", rangeHeadULID, true}, |
| 27 | + {"head", headULID, true}, |
| 28 | + {"random block", ulid.MustNew(1, nil), false}, |
| 29 | + } |
| 30 | + |
| 31 | + for _, tc := range tests { |
| 32 | + t.Run(tc.name, func(t *testing.T) { |
| 33 | + b := &mockBlockReader{meta: tsdb.BlockMeta{ULID: tc.ulid}} |
| 34 | + assert.Equal(t, tc.expected, isHead(b)) |
| 35 | + }) |
| 36 | + } |
| 37 | +} |
| 38 | + |
| 39 | +func TestHeadQueriedSeriesChunkQuerier_RecordsMetricName(t *testing.T) { |
| 40 | + tracker := NewQueriedMetricTracker(2 * time.Hour) |
| 41 | + hll := NewActiveQueriedSeries( |
| 42 | + []time.Duration{2 * time.Hour}, |
| 43 | + 15*time.Minute, |
| 44 | + 1.0, |
| 45 | + nil, |
| 46 | + ) |
| 47 | + |
| 48 | + wrapper := &headQueriedSeriesChunkQuerier{ |
| 49 | + ChunkQuerier: &noopChunkQuerier{}, |
| 50 | + headQueriedSeries: hll, |
| 51 | + activeQueriedSeriesService: nil, |
| 52 | + queriedMetricTrackers: []*QueriedMetricTracker{tracker}, |
| 53 | + userID: "user-1", |
| 54 | + sampled: false, |
| 55 | + } |
| 56 | + |
| 57 | + matchers := []*labels.Matcher{ |
| 58 | + labels.MustNewMatcher(labels.MatchEqual, labels.MetricName, "http_requests_total"), |
| 59 | + labels.MustNewMatcher(labels.MatchEqual, "job", "api"), |
| 60 | + } |
| 61 | + |
| 62 | + wrapper.Select(context.Background(), false, nil, matchers...) |
| 63 | + |
| 64 | + now := time.Now() |
| 65 | + metrics := tracker.GetActiveMetrics(now) |
| 66 | + require.Len(t, metrics, 1) |
| 67 | + assert.Equal(t, "http_requests_total", metrics[0]) |
| 68 | +} |
| 69 | + |
| 70 | +func TestHeadQueriedSeriesChunkQuerier_SkipsRegexMetricName(t *testing.T) { |
| 71 | + tracker := NewQueriedMetricTracker(2 * time.Hour) |
| 72 | + |
| 73 | + wrapper := &headQueriedSeriesChunkQuerier{ |
| 74 | + ChunkQuerier: &noopChunkQuerier{}, |
| 75 | + queriedMetricTrackers: []*QueriedMetricTracker{tracker}, |
| 76 | + userID: "user-1", |
| 77 | + sampled: false, |
| 78 | + } |
| 79 | + |
| 80 | + matchers := []*labels.Matcher{ |
| 81 | + labels.MustNewMatcher(labels.MatchRegexp, labels.MetricName, "http_.*"), |
| 82 | + } |
| 83 | + |
| 84 | + wrapper.Select(context.Background(), false, nil, matchers...) |
| 85 | + |
| 86 | + metrics := tracker.GetActiveMetrics(time.Now()) |
| 87 | + assert.Empty(t, metrics) |
| 88 | +} |
| 89 | + |
| 90 | +func TestHeadQueriedSeriesSet_CollectsHashes(t *testing.T) { |
| 91 | + lbls1 := labels.FromStrings("__name__", "metric_a", "job", "foo") |
| 92 | + lbls2 := labels.FromStrings("__name__", "metric_a", "job", "bar") |
| 93 | + |
| 94 | + inner := &mockChunkSeriesSet{ |
| 95 | + series: []storage.ChunkSeries{ |
| 96 | + &mockChunkSeries{lbls: lbls1}, |
| 97 | + &mockChunkSeries{lbls: lbls2}, |
| 98 | + }, |
| 99 | + } |
| 100 | + |
| 101 | + hll := NewActiveQueriedSeries( |
| 102 | + []time.Duration{2 * time.Hour}, |
| 103 | + 15*time.Minute, |
| 104 | + 1.0, |
| 105 | + nil, |
| 106 | + ) |
| 107 | + |
| 108 | + // Use a real service to process the hashes. |
| 109 | + svc := NewActiveQueriedSeriesService(log.NewNopLogger(), nil) |
| 110 | + require.NoError(t, svc.StartAsync(context.Background())) |
| 111 | + defer svc.StopAsync() |
| 112 | + require.NoError(t, svc.AwaitRunning(context.Background())) |
| 113 | + |
| 114 | + tracker := NewQueriedMetricTracker(2 * time.Hour) |
| 115 | + wrapper := &headQueriedSeriesChunkQuerier{ |
| 116 | + ChunkQuerier: &mockChunkQuerierWithSeries{inner: inner}, |
| 117 | + headQueriedSeries: hll, |
| 118 | + activeQueriedSeriesService: svc, |
| 119 | + queriedMetricTrackers: []*QueriedMetricTracker{tracker}, |
| 120 | + userID: "user-1", |
| 121 | + sampled: true, |
| 122 | + } |
| 123 | + |
| 124 | + matchers := []*labels.Matcher{ |
| 125 | + labels.MustNewMatcher(labels.MatchEqual, labels.MetricName, "metric_a"), |
| 126 | + } |
| 127 | + |
| 128 | + ss := wrapper.Select(context.Background(), false, nil, matchers...) |
| 129 | + count := 0 |
| 130 | + for ss.Next() { |
| 131 | + count++ |
| 132 | + } |
| 133 | + assert.Equal(t, 2, count) |
| 134 | + |
| 135 | + // Give the async worker time to process. |
| 136 | + time.Sleep(50 * time.Millisecond) |
| 137 | + |
| 138 | + estimate, err := hll.GetSeriesQueried(time.Now(), 2*time.Hour) |
| 139 | + require.NoError(t, err) |
| 140 | + assert.Equal(t, uint64(2), estimate) |
| 141 | + |
| 142 | + // Also verify metric name was recorded. |
| 143 | + metrics := tracker.GetActiveMetrics(time.Now()) |
| 144 | + require.Len(t, metrics, 1) |
| 145 | + assert.Equal(t, "metric_a", metrics[0]) |
| 146 | +} |
| 147 | + |
| 148 | +// Mock implementations |
| 149 | + |
| 150 | +type mockBlockReader struct { |
| 151 | + meta tsdb.BlockMeta |
| 152 | +} |
| 153 | + |
| 154 | +func (m *mockBlockReader) Meta() tsdb.BlockMeta { return m.meta } |
| 155 | +func (m *mockBlockReader) Index() (tsdb.IndexReader, error) { return nil, nil } |
| 156 | +func (m *mockBlockReader) Chunks() (tsdb.ChunkReader, error) { return nil, nil } |
| 157 | +func (m *mockBlockReader) Tombstones() (tombstones.Reader, error) { return nil, nil } |
| 158 | +func (m *mockBlockReader) Size() int64 { return 0 } |
| 159 | +func (m *mockBlockReader) String() string { return "" } |
| 160 | +func (m *mockBlockReader) MinTime() int64 { return 0 } |
| 161 | +func (m *mockBlockReader) MaxTime() int64 { return 0 } |
| 162 | + |
| 163 | +type noopChunkQuerier struct{} |
| 164 | + |
| 165 | +func (q *noopChunkQuerier) Select(_ context.Context, _ bool, _ *storage.SelectHints, _ ...*labels.Matcher) storage.ChunkSeriesSet { |
| 166 | + return storage.EmptyChunkSeriesSet() |
| 167 | +} |
| 168 | +func (q *noopChunkQuerier) LabelValues(_ context.Context, _ string, _ *storage.LabelHints, _ ...*labels.Matcher) ([]string, annotations.Annotations, error) { |
| 169 | + return nil, nil, nil |
| 170 | +} |
| 171 | +func (q *noopChunkQuerier) LabelNames(_ context.Context, _ *storage.LabelHints, _ ...*labels.Matcher) ([]string, annotations.Annotations, error) { |
| 172 | + return nil, nil, nil |
| 173 | +} |
| 174 | +func (q *noopChunkQuerier) Close() error { return nil } |
| 175 | + |
| 176 | +type mockChunkQuerierWithSeries struct { |
| 177 | + inner *mockChunkSeriesSet |
| 178 | +} |
| 179 | + |
| 180 | +func (q *mockChunkQuerierWithSeries) Select(_ context.Context, _ bool, _ *storage.SelectHints, _ ...*labels.Matcher) storage.ChunkSeriesSet { |
| 181 | + return q.inner |
| 182 | +} |
| 183 | +func (q *mockChunkQuerierWithSeries) LabelValues(_ context.Context, _ string, _ *storage.LabelHints, _ ...*labels.Matcher) ([]string, annotations.Annotations, error) { |
| 184 | + return nil, nil, nil |
| 185 | +} |
| 186 | +func (q *mockChunkQuerierWithSeries) LabelNames(_ context.Context, _ *storage.LabelHints, _ ...*labels.Matcher) ([]string, annotations.Annotations, error) { |
| 187 | + return nil, nil, nil |
| 188 | +} |
| 189 | +func (q *mockChunkQuerierWithSeries) Close() error { return nil } |
| 190 | + |
| 191 | +type mockChunkSeriesSet struct { |
| 192 | + series []storage.ChunkSeries |
| 193 | + idx int |
| 194 | +} |
| 195 | + |
| 196 | +func (m *mockChunkSeriesSet) Next() bool { |
| 197 | + if m.idx >= len(m.series) { |
| 198 | + return false |
| 199 | + } |
| 200 | + m.idx++ |
| 201 | + return true |
| 202 | +} |
| 203 | +func (m *mockChunkSeriesSet) At() storage.ChunkSeries { return m.series[m.idx-1] } |
| 204 | +func (m *mockChunkSeriesSet) Err() error { return nil } |
| 205 | +func (m *mockChunkSeriesSet) Warnings() annotations.Annotations { return nil } |
| 206 | + |
| 207 | +type mockChunkSeries struct { |
| 208 | + lbls labels.Labels |
| 209 | +} |
| 210 | + |
| 211 | +func (m *mockChunkSeries) Labels() labels.Labels { return m.lbls } |
| 212 | +func (m *mockChunkSeries) Iterator(_ chunks.Iterator) chunks.Iterator { return nil } |
0 commit comments