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// Copyright 2017 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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"io/ioutil"
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"math/rand"
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"os"
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"testing"
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"unsafe"
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"github.com/pkg/errors"
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"github.com/prometheus/tsdb/chunks"
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"github.com/prometheus/tsdb/labels"
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promlabels "github.com/prometheus/prometheus/pkg/labels"
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"github.com/prometheus/prometheus/pkg/textparse"
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"github.com/stretchr/testify/require"
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)
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func BenchmarkCreateSeries(b *testing.B) {
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lbls, err := readPrometheusLabels("testdata/all.series", b.N)
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require.NoError(b, err)
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h, err := NewHead(nil, nil, nil, 10000)
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if err != nil {
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require.NoError(b, err)
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}
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b.ReportAllocs()
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b.ResetTimer()
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for _, l := range lbls {
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h.getOrCreate(l.Hash(), l)
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}
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}
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func readPrometheusLabels(fn string, n int) ([]labels.Labels, error) {
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f, err := os.Open(fn)
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if err != nil {
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return nil, err
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}
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defer f.Close()
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b, err := ioutil.ReadAll(f)
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if err != nil {
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return nil, err
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}
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p := textparse.New(b)
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i := 0
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var mets []labels.Labels
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hashes := map[uint64]struct{}{}
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for p.Next() && i < n {
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m := make(labels.Labels, 0, 10)
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p.Metric((*promlabels.Labels)(unsafe.Pointer(&m)))
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h := m.Hash()
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if _, ok := hashes[h]; ok {
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continue
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}
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mets = append(mets, m)
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hashes[h] = struct{}{}
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i++
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}
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if err := p.Err(); err != nil {
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return nil, err
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}
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if i != n {
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return mets, errors.Errorf("requested %d metrics but found %d", n, i)
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}
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return mets, nil
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}
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type memoryWAL struct {
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nopWAL
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entries []interface{}
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}
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func (w *memoryWAL) Reader() WALReader {
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return w
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}
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func (w *memoryWAL) Read(series func([]RefSeries), samples func([]RefSample), deletes func([]Stone)) error {
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for _, e := range w.entries {
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switch v := e.(type) {
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case []RefSeries:
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series(v)
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case []RefSample:
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samples(v)
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case []Stone:
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deletes(v)
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}
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}
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return nil
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}
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func TestHead_ReadWAL(t *testing.T) {
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entries := []interface{}{
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[]RefSeries{
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{Ref: 10, Labels: labels.FromStrings("a", "1")},
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{Ref: 11, Labels: labels.FromStrings("a", "2")},
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{Ref: 100, Labels: labels.FromStrings("a", "3")},
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},
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[]RefSample{
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{Ref: 0, T: 99, V: 1},
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{Ref: 10, T: 100, V: 2},
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{Ref: 100, T: 100, V: 3},
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},
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[]RefSeries{
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{Ref: 50, Labels: labels.FromStrings("a", "4")},
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},
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[]RefSample{
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{Ref: 10, T: 101, V: 5},
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{Ref: 50, T: 101, V: 6},
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},
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}
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wal := &memoryWAL{entries: entries}
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head, err := NewHead(nil, nil, wal, 1000)
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require.NoError(t, err)
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require.NoError(t, head.ReadWAL())
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require.Equal(t, uint64(100), head.lastSeriesID)
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s10 := head.series.getByID(10)
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s11 := head.series.getByID(11)
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s50 := head.series.getByID(50)
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s100 := head.series.getByID(100)
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require.Equal(t, labels.FromStrings("a", "1"), s10.lset)
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require.Equal(t, labels.FromStrings("a", "2"), s11.lset)
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require.Equal(t, labels.FromStrings("a", "4"), s50.lset)
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require.Equal(t, labels.FromStrings("a", "3"), s100.lset)
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expandChunk := func(c chunks.Iterator) (x []sample) {
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for c.Next() {
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t, v := c.At()
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x = append(x, sample{t: t, v: v})
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}
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require.NoError(t, c.Err())
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return x
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}
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require.Equal(t, []sample{{100, 2}, {101, 5}}, expandChunk(s10.iterator(0)))
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require.Equal(t, 0, len(s11.chunks))
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require.Equal(t, []sample{{101, 6}}, expandChunk(s50.iterator(0)))
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require.Equal(t, []sample{{100, 3}}, expandChunk(s100.iterator(0)))
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}
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func TestHead_Truncate(t *testing.T) {
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h, err := NewHead(nil, nil, nil, 1000)
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require.NoError(t, err)
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h.initTime(0)
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s1, _ := h.getOrCreate(1, labels.FromStrings("a", "1", "b", "1"))
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s2, _ := h.getOrCreate(2, labels.FromStrings("a", "2", "b", "1"))
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s3, _ := h.getOrCreate(3, labels.FromStrings("a", "1", "b", "2"))
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s4, _ := h.getOrCreate(4, labels.FromStrings("a", "2", "b", "2", "c", "1"))
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s1.chunks = []*memChunk{
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{minTime: 0, maxTime: 999},
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{minTime: 1000, maxTime: 1999},
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{minTime: 2000, maxTime: 2999},
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}
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s2.chunks = []*memChunk{
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{minTime: 1000, maxTime: 1999},
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{minTime: 2000, maxTime: 2999},
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{minTime: 3000, maxTime: 3999},
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}
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s3.chunks = []*memChunk{
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{minTime: 0, maxTime: 999},
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{minTime: 1000, maxTime: 1999},
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}
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s4.chunks = []*memChunk{}
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// Truncation need not be aligned.
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require.NoError(t, h.Truncate(1))
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h.Truncate(2000)
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require.Equal(t, []*memChunk{
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{minTime: 2000, maxTime: 2999},
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}, h.series.getByID(s1.ref).chunks)
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require.Equal(t, []*memChunk{
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{minTime: 2000, maxTime: 2999},
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{minTime: 3000, maxTime: 3999},
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}, h.series.getByID(s2.ref).chunks)
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require.Nil(t, h.series.getByID(s3.ref))
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require.Nil(t, h.series.getByID(s4.ref))
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postingsA1, _ := expandPostings(h.postings.get("a", "1"))
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postingsA2, _ := expandPostings(h.postings.get("a", "2"))
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postingsB1, _ := expandPostings(h.postings.get("b", "1"))
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postingsB2, _ := expandPostings(h.postings.get("b", "2"))
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postingsC1, _ := expandPostings(h.postings.get("c", "1"))
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postingsAll, _ := expandPostings(h.postings.get("", ""))
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require.Equal(t, []uint64{s1.ref}, postingsA1)
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require.Equal(t, []uint64{s2.ref}, postingsA2)
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require.Equal(t, []uint64{s1.ref, s2.ref}, postingsB1)
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require.Equal(t, []uint64{s1.ref, s2.ref}, postingsAll)
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require.Nil(t, postingsB2)
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require.Nil(t, postingsC1)
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require.Equal(t, map[string]struct{}{
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"": struct{}{}, // from 'all' postings list
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"a": struct{}{},
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"b": struct{}{},
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"1": struct{}{},
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"2": struct{}{},
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}, h.symbols)
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require.Equal(t, map[string]stringset{
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"a": stringset{"1": struct{}{}, "2": struct{}{}},
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"b": stringset{"1": struct{}{}},
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"": stringset{"": struct{}{}},
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}, h.values)
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}
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// Validate various behaviors brought on by firstChunkID accounting for
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// garbage collected chunks.
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func TestMemSeries_truncateChunks(t *testing.T) {
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s := newMemSeries(labels.FromStrings("a", "b"), 1, 2000)
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for i := 0; i < 4000; i += 5 {
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ok, _ := s.append(int64(i), float64(i))
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require.True(t, ok, "sample appen failed")
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}
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// Check that truncate removes half of the chunks and afterwards
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// that the ID of the last chunk still gives us the same chunk afterwards.
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countBefore := len(s.chunks)
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lastID := s.chunkID(countBefore - 1)
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lastChunk := s.chunk(lastID)
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require.NotNil(t, s.chunk(0))
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require.NotNil(t, lastChunk)
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s.truncateChunksBefore(2000)
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require.Equal(t, int64(2000), s.chunks[0].minTime, "unexpected start time of first chunks")
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require.Nil(t, s.chunk(0), "first chunk not gone")
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require.Equal(t, countBefore/2, len(s.chunks), "chunks not truncated correctly")
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require.Equal(t, lastChunk, s.chunk(lastID), "last chunk does not match")
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// Validate that the series' sample buffer is applied correctly to the last chunk
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// after truncation.
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it1 := s.iterator(s.chunkID(len(s.chunks) - 1))
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_, ok := it1.(*memSafeIterator)
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require.True(t, ok, "last chunk not wrapped with sample buffer")
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it2 := s.iterator(s.chunkID(len(s.chunks) - 2))
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_, ok = it2.(*memSafeIterator)
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require.False(t, ok, "non-last chunk incorrectly wrapped with sample buffer")
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}
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func TestHeadDeleteSimple(t *testing.T) {
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numSamples := int64(10)
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head, err := NewHead(nil, nil, nil, 1000)
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require.NoError(t, err)
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app := head.Appender()
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smpls := make([]float64, numSamples)
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for i := int64(0); i < numSamples; i++ {
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smpls[i] = rand.Float64()
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app.Add(labels.Labels{{"a", "b"}}, i, smpls[i])
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}
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require.NoError(t, app.Commit())
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cases := []struct {
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intervals Intervals
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remaint []int64
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}{
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{
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intervals: Intervals{{0, 3}},
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remaint: []int64{4, 5, 6, 7, 8, 9},
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},
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{
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intervals: Intervals{{1, 3}},
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remaint: []int64{0, 4, 5, 6, 7, 8, 9},
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},
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{
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intervals: Intervals{{1, 3}, {4, 7}},
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remaint: []int64{0, 8, 9},
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},
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{
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intervals: Intervals{{1, 3}, {4, 700}},
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remaint: []int64{0},
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},
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{
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intervals: Intervals{{0, 9}},
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remaint: []int64{},
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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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// Reset the tombstones.
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head.tombstones = newEmptyTombstoneReader()
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// Delete the ranges.
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for _, r := range c.intervals {
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require.NoError(t, head.Delete(r.Mint, r.Maxt, labels.NewEqualMatcher("a", "b")))
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}
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// Compare the result.
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q := NewBlockQuerier(head.Index(), head.Chunks(), head.Tombstones(), head.MinTime(), head.MaxTime())
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res := q.Select(labels.NewEqualMatcher("a", "b"))
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expSamples := make([]sample, 0, len(c.remaint))
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for _, ts := range c.remaint {
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expSamples = append(expSamples, sample{ts, smpls[ts]})
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}
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expss := newListSeriesSet([]Series{
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newSeries(map[string]string{"a": "b"}, expSamples),
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})
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if len(expSamples) == 0 {
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require.False(t, res.Next())
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continue
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}
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for {
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eok, rok := expss.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 := expss.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 TestDeleteUntilCurMax(t *testing.T) {
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// numSamples := int64(10)
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// dir, _ := ioutil.TempDir("", "test")
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// defer os.RemoveAll(dir)
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|
|
|
|
|
// hb := createTestHead(t, dir, 0, 2*numSamples)
|
|
|
|
// app := hb.Appender()
|
|
|
|
|
|
|
|
// smpls := make([]float64, numSamples)
|
|
|
|
// for i := int64(0); i < numSamples; i++ {
|
|
|
|
// smpls[i] = rand.Float64()
|
|
|
|
// app.Add(labels.Labels{{"a", "b"}}, i, smpls[i])
|
|
|
|
// }
|
|
|
|
|
|
|
|
// require.NoError(t, app.Commit())
|
|
|
|
// require.NoError(t, hb.Delete(0, 10000, labels.NewEqualMatcher("a", "b")))
|
|
|
|
// app = hb.Appender()
|
|
|
|
// _, err := app.Add(labels.Labels{{"a", "b"}}, 11, 1)
|
|
|
|
// require.NoError(t, err)
|
|
|
|
// require.NoError(t, app.Commit())
|
|
|
|
|
|
|
|
// q := hb.Querier(0, 100000)
|
|
|
|
// res := q.Select(labels.NewEqualMatcher("a", "b"))
|
|
|
|
|
|
|
|
// require.True(t, res.Next())
|
|
|
|
// exps := res.At()
|
|
|
|
// it := exps.Iterator()
|
|
|
|
// ressmpls, err := expandSeriesIterator(it)
|
|
|
|
// require.NoError(t, err)
|
|
|
|
// require.Equal(t, []sample{{11, 1}}, ressmpls)
|
|
|
|
// }
|
|
|
|
|
|
|
|
// func TestDelete_e2e(t *testing.T) {
|
|
|
|
// numDatapoints := 1000
|
|
|
|
// numRanges := 1000
|
|
|
|
// timeInterval := int64(2)
|
|
|
|
// maxTime := int64(2 * 1000)
|
|
|
|
// minTime := int64(200)
|
|
|
|
// // Create 8 series with 1000 data-points of different ranges, delete and run queries.
|
|
|
|
// lbls := [][]labels.Label{
|
|
|
|
// {
|
|
|
|
// {"a", "b"},
|
|
|
|
// {"instance", "localhost:9090"},
|
|
|
|
// {"job", "prometheus"},
|
|
|
|
// },
|
|
|
|
// {
|
|
|
|
// {"a", "b"},
|
|
|
|
// {"instance", "127.0.0.1:9090"},
|
|
|
|
// {"job", "prometheus"},
|
|
|
|
// },
|
|
|
|
// {
|
|
|
|
// {"a", "b"},
|
|
|
|
// {"instance", "127.0.0.1:9090"},
|
|
|
|
// {"job", "prom-k8s"},
|
|
|
|
// },
|
|
|
|
// {
|
|
|
|
// {"a", "b"},
|
|
|
|
// {"instance", "localhost:9090"},
|
|
|
|
// {"job", "prom-k8s"},
|
|
|
|
// },
|
|
|
|
// {
|
|
|
|
// {"a", "c"},
|
|
|
|
// {"instance", "localhost:9090"},
|
|
|
|
// {"job", "prometheus"},
|
|
|
|
// },
|
|
|
|
// {
|
|
|
|
// {"a", "c"},
|
|
|
|
// {"instance", "127.0.0.1:9090"},
|
|
|
|
// {"job", "prometheus"},
|
|
|
|
// },
|
|
|
|
// {
|
|
|
|
// {"a", "c"},
|
|
|
|
// {"instance", "127.0.0.1:9090"},
|
|
|
|
// {"job", "prom-k8s"},
|
|
|
|
// },
|
|
|
|
// {
|
|
|
|
// {"a", "c"},
|
|
|
|
// {"instance", "localhost:9090"},
|
|
|
|
// {"job", "prom-k8s"},
|
|
|
|
// },
|
|
|
|
// }
|
|
|
|
|
|
|
|
// seriesMap := map[string][]sample{}
|
|
|
|
// for _, l := range lbls {
|
|
|
|
// seriesMap[labels.New(l...).String()] = []sample{}
|
|
|
|
// }
|
|
|
|
|
|
|
|
// dir, _ := ioutil.TempDir("", "test")
|
|
|
|
// defer os.RemoveAll(dir)
|
|
|
|
|
|
|
|
// hb := createTestHead(t, dir, minTime, maxTime)
|
|
|
|
// app := hb.Appender()
|
|
|
|
|
|
|
|
// for _, l := range lbls {
|
|
|
|
// ls := labels.New(l...)
|
|
|
|
// series := []sample{}
|
|
|
|
|
|
|
|
// ts := rand.Int63n(300)
|
|
|
|
// for i := 0; i < numDatapoints; i++ {
|
|
|
|
// v := rand.Float64()
|
|
|
|
// if ts >= minTime && ts <= maxTime {
|
|
|
|
// series = append(series, sample{ts, v})
|
|
|
|
// }
|
|
|
|
|
|
|
|
// _, err := app.Add(ls, ts, v)
|
|
|
|
// if ts >= minTime && ts <= maxTime {
|
|
|
|
// require.NoError(t, err)
|
|
|
|
// } else {
|
|
|
|
// require.EqualError(t, err, ErrOutOfBounds.Error())
|
|
|
|
// }
|
|
|
|
|
|
|
|
// ts += rand.Int63n(timeInterval) + 1
|
|
|
|
// }
|
|
|
|
|
|
|
|
// seriesMap[labels.New(l...).String()] = series
|
|
|
|
// }
|
|
|
|
|
|
|
|
// require.NoError(t, app.Commit())
|
|
|
|
|
|
|
|
// // Delete a time-range from each-selector.
|
|
|
|
// dels := []struct {
|
|
|
|
// ms []labels.Matcher
|
|
|
|
// drange Intervals
|
|
|
|
// }{
|
|
|
|
// {
|
|
|
|
// ms: []labels.Matcher{labels.NewEqualMatcher("a", "b")},
|
|
|
|
// drange: Intervals{{300, 500}, {600, 670}},
|
|
|
|
// },
|
|
|
|
// {
|
|
|
|
// ms: []labels.Matcher{
|
|
|
|
// labels.NewEqualMatcher("a", "b"),
|
|
|
|
// labels.NewEqualMatcher("job", "prom-k8s"),
|
|
|
|
// },
|
|
|
|
// drange: Intervals{{300, 500}, {100, 670}},
|
|
|
|
// },
|
|
|
|
// {
|
|
|
|
// ms: []labels.Matcher{
|
|
|
|
// labels.NewEqualMatcher("a", "c"),
|
|
|
|
// labels.NewEqualMatcher("instance", "localhost:9090"),
|
|
|
|
// labels.NewEqualMatcher("job", "prometheus"),
|
|
|
|
// },
|
|
|
|
// drange: Intervals{{300, 400}, {100, 6700}},
|
|
|
|
// },
|
|
|
|
// // TODO: Add Regexp Matchers.
|
|
|
|
// }
|
|
|
|
|
|
|
|
// for _, del := range dels {
|
|
|
|
// // Reset the deletes everytime.
|
|
|
|
// writeTombstoneFile(hb.dir, newEmptyTombstoneReader())
|
|
|
|
// hb.tombstones = newEmptyTombstoneReader()
|
|
|
|
|
|
|
|
// for _, r := range del.drange {
|
|
|
|
// require.NoError(t, hb.Delete(r.Mint, r.Maxt, del.ms...))
|
|
|
|
// }
|
|
|
|
|
|
|
|
// matched := labels.Slice{}
|
|
|
|
// for _, ls := range lbls {
|
|
|
|
// s := labels.Selector(del.ms)
|
|
|
|
// if s.Matches(ls) {
|
|
|
|
// matched = append(matched, ls)
|
|
|
|
// }
|
|
|
|
// }
|
|
|
|
|
|
|
|
// sort.Sort(matched)
|
|
|
|
|
|
|
|
// for i := 0; i < numRanges; i++ {
|
|
|
|
// mint := rand.Int63n(200)
|
|
|
|
// maxt := mint + rand.Int63n(timeInterval*int64(numDatapoints))
|
|
|
|
|
|
|
|
// q := hb.Querier(mint, maxt)
|
|
|
|
// ss := q.Select(del.ms...)
|
|
|
|
|
|
|
|
// // Build the mockSeriesSet.
|
|
|
|
// matchedSeries := make([]Series, 0, len(matched))
|
|
|
|
// for _, m := range matched {
|
|
|
|
// smpls := boundedSamples(seriesMap[m.String()], mint, maxt)
|
|
|
|
// smpls = deletedSamples(smpls, del.drange)
|
|
|
|
|
|
|
|
// // Only append those series for which samples exist as mockSeriesSet
|
|
|
|
// // doesn't skip series with no samples.
|
|
|
|
// // TODO: But sometimes SeriesSet returns an empty SeriesIterator
|
|
|
|
// if len(smpls) > 0 {
|
|
|
|
// matchedSeries = append(matchedSeries, newSeries(
|
|
|
|
// m.Map(),
|
|
|
|
// smpls,
|
|
|
|
// ))
|
|
|
|
// }
|
|
|
|
// }
|
|
|
|
// expSs := newListSeriesSet(matchedSeries)
|
|
|
|
|
|
|
|
// // Compare both SeriesSets.
|
|
|
|
// for {
|
|
|
|
// eok, rok := expSs.Next(), ss.Next()
|
|
|
|
|
|
|
|
// // Skip a series if iterator is empty.
|
|
|
|
// if rok {
|
|
|
|
// for !ss.At().Iterator().Next() {
|
|
|
|
// rok = ss.Next()
|
|
|
|
// if !rok {
|
|
|
|
// break
|
|
|
|
// }
|
|
|
|
// }
|
|
|
|
// }
|
|
|
|
// require.Equal(t, eok, rok, "next")
|
|
|
|
|
|
|
|
// if !eok {
|
|
|
|
// break
|
|
|
|
// }
|
|
|
|
// sexp := expSs.At()
|
|
|
|
// sres := ss.At()
|
|
|
|
|
|
|
|
// require.Equal(t, sexp.Labels(), sres.Labels(), "labels")
|
|
|
|
|
|
|
|
// smplExp, errExp := expandSeriesIterator(sexp.Iterator())
|
|
|
|
// smplRes, errRes := expandSeriesIterator(sres.Iterator())
|
|
|
|
|
|
|
|
// require.Equal(t, errExp, errRes, "samples error")
|
|
|
|
// require.Equal(t, smplExp, smplRes, "samples")
|
|
|
|
// }
|
|
|
|
// }
|
|
|
|
// }
|
|
|
|
|
|
|
|
// return
|
|
|
|
// }
|
|
|
|
|
|
|
|
func boundedSamples(full []sample, mint, maxt int64) []sample {
|
|
|
|
for len(full) > 0 {
|
|
|
|
if full[0].t >= mint {
|
|
|
|
break
|
|
|
|
}
|
|
|
|
full = full[1:]
|
|
|
|
}
|
|
|
|
for i, s := range full {
|
|
|
|
// labels.Labelinate on the first sample larger than maxt.
|
|
|
|
if s.t > maxt {
|
|
|
|
return full[:i]
|
|
|
|
}
|
|
|
|
}
|
|
|
|
// maxt is after highest sample.
|
|
|
|
return full
|
|
|
|
}
|
|
|
|
|
|
|
|
func deletedSamples(full []sample, dranges Intervals) []sample {
|
|
|
|
ds := make([]sample, 0, len(full))
|
|
|
|
Outer:
|
|
|
|
for _, s := range full {
|
|
|
|
for _, r := range dranges {
|
|
|
|
if r.inBounds(s.t) {
|
|
|
|
continue Outer
|
|
|
|
}
|
|
|
|
}
|
|
|
|
ds = append(ds, s)
|
|
|
|
}
|
|
|
|
|
|
|
|
return ds
|
|
|
|
}
|
|
|
|
|
|
|
|
func TestComputeChunkEndTime(t *testing.T) {
|
|
|
|
cases := []struct {
|
|
|
|
start, cur, max int64
|
|
|
|
res int64
|
|
|
|
}{
|
|
|
|
{
|
|
|
|
start: 0,
|
|
|
|
cur: 250,
|
|
|
|
max: 1000,
|
|
|
|
res: 1000,
|
|
|
|
},
|
|
|
|
{
|
|
|
|
start: 100,
|
|
|
|
cur: 200,
|
|
|
|
max: 1000,
|
|
|
|
res: 550,
|
|
|
|
},
|
|
|
|
// Case where we fit floored 0 chunks. Must catch division by 0
|
|
|
|
// and default to maximum time.
|
|
|
|
{
|
|
|
|
start: 0,
|
|
|
|
cur: 500,
|
|
|
|
max: 1000,
|
|
|
|
res: 1000,
|
|
|
|
},
|
|
|
|
// Catch divison by zero for cur == start. Strictly not a possible case.
|
|
|
|
{
|
|
|
|
start: 100,
|
|
|
|
cur: 100,
|
|
|
|
max: 1000,
|
|
|
|
res: 104,
|
|
|
|
},
|
|
|
|
}
|
|
|
|
|
|
|
|
for _, c := range cases {
|
|
|
|
got := computeChunkEndTime(c.start, c.cur, c.max)
|
|
|
|
if got != c.res {
|
|
|
|
t.Errorf("expected %d for (start: %d, cur: %d, max: %d), got %d", c.res, c.start, c.cur, c.max, got)
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|