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841 lines
16 KiB
841 lines
16 KiB
package tsdb
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import (
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"math"
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"math/rand"
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"sort"
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"testing"
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"github.com/prometheus/tsdb/chunks"
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"github.com/prometheus/tsdb/labels"
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"github.com/stretchr/testify/require"
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)
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type mockSeriesIterator struct {
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seek func(int64) bool
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at func() (int64, float64)
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next func() bool
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err func() error
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}
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func (m *mockSeriesIterator) Seek(t int64) bool { return m.seek(t) }
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func (m *mockSeriesIterator) At() (int64, float64) { return m.at() }
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func (m *mockSeriesIterator) Next() bool { return m.next() }
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func (m *mockSeriesIterator) Err() error { return m.err() }
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type mockSeries struct {
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labels func() labels.Labels
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iterator func() SeriesIterator
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}
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func (m *mockSeries) Labels() labels.Labels { return m.labels() }
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func (m *mockSeries) Iterator() SeriesIterator { return m.iterator() }
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type listSeriesIterator struct {
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list []sample
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idx int
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}
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func newListSeriesIterator(list []sample) *listSeriesIterator {
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return &listSeriesIterator{list: list, idx: -1}
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}
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func (it *listSeriesIterator) At() (int64, float64) {
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s := it.list[it.idx]
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return s.t, s.v
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}
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func (it *listSeriesIterator) Next() bool {
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it.idx++
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return it.idx < len(it.list)
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}
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func (it *listSeriesIterator) Seek(t int64) bool {
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if it.idx == -1 {
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it.idx = 0
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}
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// Do binary search between current position and end.
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it.idx = sort.Search(len(it.list)-it.idx, func(i int) bool {
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s := it.list[i+it.idx]
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return s.t >= t
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})
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return it.idx < len(it.list)
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}
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func (it *listSeriesIterator) Err() error {
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return nil
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}
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func TestMergedSeriesSet(t *testing.T) {
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newSeries := func(l map[string]string, s []sample) Series {
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return &mockSeries{
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labels: func() labels.Labels { return labels.FromMap(l) },
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iterator: func() SeriesIterator { return newListSeriesIterator(s) },
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}
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}
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cases := []struct {
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// The input sets in order (samples in series in b are strictly
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// after those in a).
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a, b SeriesSet
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// The composition of a and b in the partition series set must yield
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// results equivalent to the result series set.
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exp SeriesSet
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}{
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{
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a: newListSeriesSet([]Series{
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newSeries(map[string]string{
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"a": "a",
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}, []sample{
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{t: 1, v: 1},
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}),
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}),
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b: newListSeriesSet([]Series{
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newSeries(map[string]string{
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"a": "a",
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}, []sample{
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{t: 2, v: 2},
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}),
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newSeries(map[string]string{
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"b": "b",
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}, []sample{
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{t: 1, v: 1},
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}),
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}),
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exp: newListSeriesSet([]Series{
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newSeries(map[string]string{
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"a": "a",
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}, []sample{
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{t: 1, v: 1},
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{t: 2, v: 2},
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}),
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newSeries(map[string]string{
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"b": "b",
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}, []sample{
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{t: 1, v: 1},
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}),
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}),
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},
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{
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a: newListSeriesSet([]Series{
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newSeries(map[string]string{
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"handler": "prometheus",
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"instance": "127.0.0.1:9090",
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}, []sample{
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{t: 1, v: 1},
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}),
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newSeries(map[string]string{
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"handler": "prometheus",
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"instance": "localhost:9090",
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}, []sample{
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{t: 1, v: 2},
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}),
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}),
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b: newListSeriesSet([]Series{
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newSeries(map[string]string{
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"handler": "prometheus",
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"instance": "127.0.0.1:9090",
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}, []sample{
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{t: 2, v: 1},
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}),
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newSeries(map[string]string{
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"handler": "query",
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"instance": "localhost:9090",
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}, []sample{
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{t: 2, v: 2},
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}),
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}),
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exp: newListSeriesSet([]Series{
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newSeries(map[string]string{
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"handler": "prometheus",
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"instance": "127.0.0.1:9090",
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}, []sample{
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{t: 1, v: 1},
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{t: 2, v: 1},
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}),
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newSeries(map[string]string{
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"handler": "prometheus",
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"instance": "localhost:9090",
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}, []sample{
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{t: 1, v: 2},
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}),
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newSeries(map[string]string{
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"handler": "query",
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"instance": "localhost:9090",
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}, []sample{
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{t: 2, v: 2},
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}),
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}),
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},
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}
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Outer:
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for _, c := range cases {
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res := newMergedSeriesSet(c.a, c.b)
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for {
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eok, rok := c.exp.Next(), res.Next()
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require.Equal(t, eok, rok, "next")
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if !eok {
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continue Outer
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}
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sexp := c.exp.At()
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sres := res.At()
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require.Equal(t, sexp.Labels(), sres.Labels(), "labels")
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smplExp, errExp := expandSeriesIterator(sexp.Iterator())
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smplRes, errRes := expandSeriesIterator(sres.Iterator())
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require.Equal(t, errExp, errRes, "samples error")
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require.Equal(t, smplExp, smplRes, "samples")
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}
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}
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}
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func expandSeriesIterator(it SeriesIterator) (r []sample, err error) {
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for it.Next() {
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t, v := it.At()
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r = append(r, sample{t: t, v: v})
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}
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return r, it.Err()
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}
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// Index: labels -> postings -> chunkMetas -> chunkRef
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// ChunkReader: ref -> vals
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func createIdxChkReaders(tc []struct {
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lset map[string]string
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chunks [][]sample
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}) (IndexReader, ChunkReader) {
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sort.Slice(tc, func(i, j int) bool {
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return labels.Compare(labels.FromMap(tc[i].lset), labels.FromMap(tc[i].lset)) < 0
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})
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postings := &memPostings{m: make(map[term][]uint32, 512)}
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chkReader := mockChunkReader(make(map[uint64]chunks.Chunk))
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mi := newMockIndex()
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for i, s := range tc {
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metas := make([]*ChunkMeta, 0, len(s.chunks))
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for _, chk := range s.chunks {
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// Collisions can be there, but for tests, its fine.
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ref := rand.Uint64()
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metas = append(metas, &ChunkMeta{
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MinTime: chk[0].t,
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MaxTime: chk[len(chk)-1].t,
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Ref: ref,
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})
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chunk := chunks.NewXORChunk()
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app, _ := chunk.Appender()
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for _, smpl := range chk {
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app.Append(smpl.t, smpl.v)
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}
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chkReader[ref] = chunk
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}
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mi.AddSeries(uint32(i), labels.FromMap(s.lset), metas...)
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postings.add(uint32(i), term{})
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for _, l := range labels.FromMap(s.lset) {
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postings.add(uint32(i), term{l.Name, l.Value})
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}
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}
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for tm := range postings.m {
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mi.WritePostings(tm.name, tm.name, postings.get(tm))
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}
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return mi, chkReader
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}
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func TestBlockQuerier(t *testing.T) {
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newSeries := func(l map[string]string, s []sample) Series {
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return &mockSeries{
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labels: func() labels.Labels { return labels.FromMap(l) },
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iterator: func() SeriesIterator { return newListSeriesIterator(s) },
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}
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}
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type query struct {
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mint, maxt int64
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ms []labels.Matcher
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exp SeriesSet
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}
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cases := struct {
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data []struct {
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lset map[string]string
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chunks [][]sample
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}
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queries []query
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}{
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data: []struct {
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lset map[string]string
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chunks [][]sample
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}{
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{
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lset: map[string]string{
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"a": "a",
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},
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chunks: [][]sample{
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{
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{1, 2}, {2, 3}, {3, 4},
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},
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{
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{5, 2}, {6, 3}, {7, 4},
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},
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},
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},
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{
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lset: map[string]string{
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"a": "a",
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"b": "b",
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},
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chunks: [][]sample{
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{
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{1, 1}, {2, 2}, {3, 3},
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},
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{
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{5, 3}, {6, 6},
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},
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},
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},
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{
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lset: map[string]string{
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"b": "b",
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},
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chunks: [][]sample{
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{
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{1, 3}, {2, 2}, {3, 6},
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},
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{
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{5, 1}, {6, 7}, {7, 2},
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},
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},
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},
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},
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queries: []query{
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{
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mint: 0,
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maxt: 0,
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ms: []labels.Matcher{},
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exp: newListSeriesSet([]Series{}),
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},
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{
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mint: 0,
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maxt: 0,
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ms: []labels.Matcher{labels.NewEqualMatcher("a", "a")},
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exp: newListSeriesSet([]Series{}),
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},
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{
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mint: 1,
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maxt: 0,
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ms: []labels.Matcher{labels.NewEqualMatcher("a", "a")},
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exp: newListSeriesSet([]Series{}),
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},
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{
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mint: 2,
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maxt: 6,
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ms: []labels.Matcher{labels.NewEqualMatcher("a", "a")},
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exp: newListSeriesSet([]Series{
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newSeries(map[string]string{
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"a": "a",
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},
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[]sample{{2, 3}, {3, 4}, {5, 2}, {6, 3}},
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),
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newSeries(map[string]string{
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"a": "a",
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"b": "b",
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},
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[]sample{{2, 2}, {3, 3}, {5, 3}, {6, 6}},
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),
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}),
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},
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},
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}
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Outer:
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for _, c := range cases.queries {
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ir, cr := createIdxChkReaders(cases.data)
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querier := &blockQuerier{
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index: ir,
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chunks: cr,
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mint: c.mint,
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maxt: c.maxt,
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}
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res := querier.Select(c.ms...)
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for {
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eok, rok := c.exp.Next(), res.Next()
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require.Equal(t, eok, rok, "next")
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if !eok {
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continue Outer
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}
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sexp := c.exp.At()
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sres := res.At()
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require.Equal(t, sexp.Labels(), sres.Labels(), "labels")
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smplExp, errExp := expandSeriesIterator(sexp.Iterator())
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smplRes, errRes := expandSeriesIterator(sres.Iterator())
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require.Equal(t, errExp, errRes, "samples error")
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require.Equal(t, smplExp, smplRes, "samples")
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}
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}
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return
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}
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func TestBaseChunkSeries(t *testing.T) {
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type refdSeries struct {
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lset labels.Labels
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chunks []*ChunkMeta
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ref uint32
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}
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cases := []struct {
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series []refdSeries
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// Postings should be in the sorted order of the the series
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postings []uint32
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expIdxs []int
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}{
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{
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series: []refdSeries{
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{
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lset: labels.New([]labels.Label{{"a", "a"}}...),
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chunks: []*ChunkMeta{
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{Ref: 29}, {Ref: 45}, {Ref: 245}, {Ref: 123}, {Ref: 4232}, {Ref: 5344},
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{Ref: 121},
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},
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ref: 12,
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},
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{
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lset: labels.New([]labels.Label{{"a", "a"}, {"b", "b"}}...),
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chunks: []*ChunkMeta{
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{Ref: 82}, {Ref: 23}, {Ref: 234}, {Ref: 65}, {Ref: 26},
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},
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ref: 10,
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},
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{
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lset: labels.New([]labels.Label{{"b", "c"}}...),
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chunks: []*ChunkMeta{{Ref: 8282}},
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ref: 1,
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},
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{
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lset: labels.New([]labels.Label{{"b", "b"}}...),
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chunks: []*ChunkMeta{
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{Ref: 829}, {Ref: 239}, {Ref: 2349}, {Ref: 659}, {Ref: 269},
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},
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ref: 108,
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},
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},
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postings: []uint32{12, 10, 108},
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expIdxs: []int{0, 1, 3},
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},
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{
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series: []refdSeries{
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{
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lset: labels.New([]labels.Label{{"a", "a"}, {"b", "b"}}...),
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chunks: []*ChunkMeta{
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{Ref: 82}, {Ref: 23}, {Ref: 234}, {Ref: 65}, {Ref: 26},
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},
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ref: 10,
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},
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{
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lset: labels.New([]labels.Label{{"b", "c"}}...),
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chunks: []*ChunkMeta{{Ref: 8282}},
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ref: 1,
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},
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},
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postings: []uint32{},
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expIdxs: []int{},
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},
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}
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for _, tc := range cases {
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mi := newMockIndex()
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for _, s := range tc.series {
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mi.AddSeries(s.ref, s.lset, s.chunks...)
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}
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bcs := &baseChunkSeries{
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p: newListPostings(tc.postings),
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index: mi,
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}
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i := 0
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for bcs.Next() {
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lset, chks := bcs.At()
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idx := tc.expIdxs[i]
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require.Equal(t, tc.series[idx].lset, lset)
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require.Equal(t, tc.series[idx].chunks, chks)
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i++
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}
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require.Equal(t, len(tc.expIdxs), i)
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require.NoError(t, bcs.Err())
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}
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return
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}
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|
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// TODO: Remove after simpleSeries is merged
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type itSeries struct {
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si SeriesIterator
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}
|
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|
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func (s itSeries) Iterator() SeriesIterator { return s.si }
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func (s itSeries) Labels() labels.Labels { return labels.Labels{} }
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|
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func chunkFromSamples(s []sample) *ChunkMeta {
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mint, maxt := int64(0), int64(0)
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if len(s) > 0 {
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mint, maxt = s[0].t, s[len(s)-1].t
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}
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|
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c := chunks.NewXORChunk()
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ca, _ := c.Appender()
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for _, s := range s {
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ca.Append(s.t, s.v)
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}
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return &ChunkMeta{
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MinTime: mint,
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MaxTime: maxt,
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Chunk: c,
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}
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}
|
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|
|
func TestSeriesIterator(t *testing.T) {
|
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itcases := []struct {
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a, b, c []sample
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exp []sample
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|
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mint, maxt int64
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}{
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{
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a: []sample{},
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b: []sample{},
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c: []sample{},
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|
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exp: []sample{},
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|
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mint: math.MinInt64,
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maxt: math.MaxInt64,
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},
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{
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a: []sample{
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{1, 2}, {2, 3}, {3, 5}, {6, 1},
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},
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b: []sample{},
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c: []sample{
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{7, 89}, {9, 8},
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},
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|
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exp: []sample{
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{1, 2}, {2, 3}, {3, 5}, {6, 1}, {7, 89}, {9, 8},
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},
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mint: math.MinInt64,
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maxt: math.MaxInt64,
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},
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{
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a: []sample{},
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b: []sample{
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{1, 2}, {2, 3}, {3, 5}, {6, 1},
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},
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c: []sample{
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{7, 89}, {9, 8},
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},
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|
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exp: []sample{
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{1, 2}, {2, 3}, {3, 5}, {6, 1}, {7, 89}, {9, 8},
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},
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mint: 2,
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maxt: 8,
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},
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{
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a: []sample{
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{1, 2}, {2, 3}, {3, 5}, {6, 1},
|
|
},
|
|
b: []sample{
|
|
{7, 89}, {9, 8},
|
|
},
|
|
c: []sample{
|
|
{10, 22}, {203, 3493},
|
|
},
|
|
|
|
exp: []sample{
|
|
{1, 2}, {2, 3}, {3, 5}, {6, 1}, {7, 89}, {9, 8}, {10, 22}, {203, 3493},
|
|
},
|
|
mint: 6,
|
|
maxt: 10,
|
|
},
|
|
}
|
|
|
|
seekcases := []struct {
|
|
a, b, c []sample
|
|
|
|
seek int64
|
|
success bool
|
|
exp []sample
|
|
|
|
mint, maxt int64
|
|
}{
|
|
{
|
|
a: []sample{},
|
|
b: []sample{},
|
|
c: []sample{},
|
|
|
|
seek: 0,
|
|
success: false,
|
|
exp: nil,
|
|
},
|
|
{
|
|
a: []sample{
|
|
{2, 3},
|
|
},
|
|
b: []sample{},
|
|
c: []sample{
|
|
{7, 89}, {9, 8},
|
|
},
|
|
|
|
seek: 10,
|
|
success: false,
|
|
exp: nil,
|
|
mint: math.MinInt64,
|
|
maxt: math.MaxInt64,
|
|
},
|
|
{
|
|
a: []sample{},
|
|
b: []sample{
|
|
{1, 2}, {3, 5}, {6, 1},
|
|
},
|
|
c: []sample{
|
|
{7, 89}, {9, 8},
|
|
},
|
|
|
|
seek: 2,
|
|
success: true,
|
|
exp: []sample{
|
|
{3, 5}, {6, 1}, {7, 89}, {9, 8},
|
|
},
|
|
mint: 5,
|
|
maxt: 8,
|
|
},
|
|
{
|
|
a: []sample{
|
|
{6, 1},
|
|
},
|
|
b: []sample{
|
|
{9, 8},
|
|
},
|
|
c: []sample{
|
|
{10, 22}, {203, 3493},
|
|
},
|
|
|
|
seek: 10,
|
|
success: true,
|
|
exp: []sample{
|
|
{10, 22}, {203, 3493},
|
|
},
|
|
mint: 10,
|
|
maxt: 203,
|
|
},
|
|
{
|
|
a: []sample{
|
|
{6, 1},
|
|
},
|
|
b: []sample{
|
|
{9, 8},
|
|
},
|
|
c: []sample{
|
|
{10, 22}, {203, 3493},
|
|
},
|
|
|
|
seek: 203,
|
|
success: true,
|
|
exp: []sample{
|
|
{203, 3493},
|
|
},
|
|
mint: 7,
|
|
maxt: 203,
|
|
},
|
|
}
|
|
|
|
t.Run("Chunk", func(t *testing.T) {
|
|
for _, tc := range itcases {
|
|
chkMetas := []*ChunkMeta{
|
|
chunkFromSamples(tc.a),
|
|
chunkFromSamples(tc.b),
|
|
chunkFromSamples(tc.c),
|
|
}
|
|
res := newChunkSeriesIterator(chkMetas, tc.mint, tc.maxt)
|
|
|
|
smplValid := make([]sample, 0)
|
|
for _, s := range tc.exp {
|
|
if s.t >= tc.mint && s.t <= tc.maxt {
|
|
smplValid = append(smplValid, s)
|
|
}
|
|
}
|
|
exp := newListSeriesIterator(smplValid)
|
|
|
|
smplExp, errExp := expandSeriesIterator(exp)
|
|
smplRes, errRes := expandSeriesIterator(res)
|
|
|
|
require.Equal(t, errExp, errRes, "samples error")
|
|
require.Equal(t, smplExp, smplRes, "samples")
|
|
}
|
|
|
|
t.Run("Seek", func(t *testing.T) {
|
|
extra := []struct {
|
|
a, b, c []sample
|
|
|
|
seek int64
|
|
success bool
|
|
exp []sample
|
|
|
|
mint, maxt int64
|
|
}{
|
|
{
|
|
a: []sample{
|
|
{6, 1},
|
|
},
|
|
b: []sample{
|
|
{9, 8},
|
|
},
|
|
c: []sample{
|
|
{10, 22}, {203, 3493},
|
|
},
|
|
|
|
seek: 203,
|
|
success: false,
|
|
exp: nil,
|
|
mint: 2,
|
|
maxt: 202,
|
|
},
|
|
{
|
|
a: []sample{
|
|
{6, 1},
|
|
},
|
|
b: []sample{
|
|
{9, 8},
|
|
},
|
|
c: []sample{
|
|
{10, 22}, {203, 3493},
|
|
},
|
|
|
|
seek: 5,
|
|
success: true,
|
|
exp: []sample{{10, 22}},
|
|
mint: 10,
|
|
maxt: 202,
|
|
},
|
|
}
|
|
|
|
seekcases2 := append(seekcases, extra...)
|
|
|
|
for _, tc := range seekcases2 {
|
|
chkMetas := []*ChunkMeta{
|
|
chunkFromSamples(tc.a),
|
|
chunkFromSamples(tc.b),
|
|
chunkFromSamples(tc.c),
|
|
}
|
|
res := newChunkSeriesIterator(chkMetas, tc.mint, tc.maxt)
|
|
|
|
smplValid := make([]sample, 0)
|
|
for _, s := range tc.exp {
|
|
if s.t >= tc.mint && s.t <= tc.maxt {
|
|
smplValid = append(smplValid, s)
|
|
}
|
|
}
|
|
exp := newListSeriesIterator(smplValid)
|
|
|
|
require.Equal(t, tc.success, res.Seek(tc.seek))
|
|
|
|
if tc.success {
|
|
// Init the list and then proceed to check.
|
|
remaining := exp.Next()
|
|
require.True(t, remaining)
|
|
|
|
for remaining {
|
|
sExp, eExp := exp.At()
|
|
sRes, eRes := res.At()
|
|
require.Equal(t, eExp, eRes, "samples error")
|
|
require.Equal(t, sExp, sRes, "samples")
|
|
|
|
remaining = exp.Next()
|
|
require.Equal(t, remaining, res.Next())
|
|
}
|
|
}
|
|
}
|
|
})
|
|
})
|
|
|
|
t.Run("Chain", func(t *testing.T) {
|
|
for _, tc := range itcases {
|
|
a, b, c := itSeries{newListSeriesIterator(tc.a)},
|
|
itSeries{newListSeriesIterator(tc.b)},
|
|
itSeries{newListSeriesIterator(tc.c)}
|
|
|
|
res := newChainedSeriesIterator(a, b, c)
|
|
exp := newListSeriesIterator(tc.exp)
|
|
|
|
smplExp, errExp := expandSeriesIterator(exp)
|
|
smplRes, errRes := expandSeriesIterator(res)
|
|
|
|
require.Equal(t, errExp, errRes, "samples error")
|
|
require.Equal(t, smplExp, smplRes, "samples")
|
|
}
|
|
|
|
t.Run("Seek", func(t *testing.T) {
|
|
for _, tc := range seekcases {
|
|
a, b, c := itSeries{newListSeriesIterator(tc.a)},
|
|
itSeries{newListSeriesIterator(tc.b)},
|
|
itSeries{newListSeriesIterator(tc.c)}
|
|
|
|
res := newChainedSeriesIterator(a, b, c)
|
|
exp := newListSeriesIterator(tc.exp)
|
|
|
|
require.Equal(t, tc.success, res.Seek(tc.seek))
|
|
|
|
if tc.success {
|
|
// Init the list and then proceed to check.
|
|
remaining := exp.Next()
|
|
require.True(t, remaining)
|
|
|
|
for remaining {
|
|
sExp, eExp := exp.At()
|
|
sRes, eRes := res.At()
|
|
require.Equal(t, eExp, eRes, "samples error")
|
|
require.Equal(t, sExp, sRes, "samples")
|
|
|
|
remaining = exp.Next()
|
|
require.Equal(t, remaining, res.Next())
|
|
}
|
|
}
|
|
}
|
|
})
|
|
})
|
|
|
|
return
|
|
}
|