mirror of
https://github.com/prometheus/prometheus.git
synced 2024-11-18 19:44:06 -08:00
d5c33877f9
* storage: Added Chunks{Queryable/Querier/SeriesSet/Series/Iteratable. Added generic Merge{SeriesSet/Querier} implementation.
## Rationales:
In many places (e.g. chunk Remote read, Thanos Receive fetching chunk from TSDB), we operate on encoded chunks not samples.
This means that we unnecessary decode/encode, wasting CPU, time and memory.
This PR adds chunk iterator interfaces and makes the merge code to be reused between both seriesSets
I will make the use of it in following PR inside tsdb itself. For now fanout implements it and mergers.
All merges now also allows passing series mergers. This opens doors for custom deduplications other than TSDB vertical ones (e.g. offline one we have in Thanos).
## Changes
* Added Chunk versions of all iterating methods. It all starts in Querier/ChunkQuerier. The plan is that
Storage will implement both chunked and samples.
* Added Seek to chunks.Iterator interface for iterating over chunks.
* NewMergeChunkQuerier was added; Both this and NewMergeQuerier are now using generigMergeQuerier to share the code. Generic code was added.
* Improved tests.
* Added some TODO for further simplifications in next PRs.
Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com>
* Addressed Brian's comments.
Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com>
* Moved s/Labeled/SeriesLabels as per Krasi suggestion.
Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com>
* Addressed Krasi's comments.
Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com>
* Second iteration of Krasi comments.
Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com>
* Another round of comments.
Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com>
599 lines
22 KiB
Go
599 lines
22 KiB
Go
// Copyright 2017 The Prometheus Authors
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
package storage
|
|
|
|
import (
|
|
"fmt"
|
|
"math"
|
|
"sort"
|
|
"testing"
|
|
|
|
"github.com/prometheus/prometheus/pkg/labels"
|
|
"github.com/prometheus/prometheus/tsdb/chunkenc"
|
|
"github.com/prometheus/prometheus/tsdb/tsdbutil"
|
|
"github.com/prometheus/prometheus/util/testutil"
|
|
)
|
|
|
|
func TestMergeStringSlices(t *testing.T) {
|
|
for _, tc := range []struct {
|
|
input [][]string
|
|
expected []string
|
|
}{
|
|
{},
|
|
{[][]string{{"foo"}}, []string{"foo"}},
|
|
{[][]string{{"foo"}, {"bar"}}, []string{"bar", "foo"}},
|
|
{[][]string{{"foo"}, {"bar"}, {"baz"}}, []string{"bar", "baz", "foo"}},
|
|
} {
|
|
testutil.Equals(t, tc.expected, mergeStringSlices(tc.input))
|
|
}
|
|
}
|
|
|
|
func TestMergeTwoStringSlices(t *testing.T) {
|
|
for _, tc := range []struct {
|
|
a, b, expected []string
|
|
}{
|
|
{[]string{}, []string{}, []string{}},
|
|
{[]string{"foo"}, nil, []string{"foo"}},
|
|
{nil, []string{"bar"}, []string{"bar"}},
|
|
{[]string{"foo"}, []string{"bar"}, []string{"bar", "foo"}},
|
|
{[]string{"foo"}, []string{"bar", "baz"}, []string{"bar", "baz", "foo"}},
|
|
{[]string{"foo"}, []string{"foo"}, []string{"foo"}},
|
|
} {
|
|
testutil.Equals(t, tc.expected, mergeTwoStringSlices(tc.a, tc.b))
|
|
}
|
|
}
|
|
|
|
func TestMergeQuerierWithChainMerger(t *testing.T) {
|
|
for _, tc := range []struct {
|
|
name string
|
|
querierSeries [][]Series
|
|
extraQueriers []Querier
|
|
|
|
expected SeriesSet
|
|
}{
|
|
{
|
|
name: "1 querier with no series",
|
|
querierSeries: [][]Series{{}},
|
|
expected: NewMockSeriesSet(),
|
|
},
|
|
{
|
|
name: "many queriers with no series",
|
|
querierSeries: [][]Series{{}, {}, {}, {}, {}, {}, {}},
|
|
expected: NewMockSeriesSet(),
|
|
},
|
|
{
|
|
name: "1 querier, two series",
|
|
querierSeries: [][]Series{{
|
|
NewListSeries(labels.FromStrings("bar", "baz"), []tsdbutil.Sample{sample{1, 1}, sample{2, 2}, sample{3, 3}}),
|
|
NewListSeries(labels.FromStrings("foo", "bar"), []tsdbutil.Sample{sample{0, 0}, sample{1, 1}, sample{2, 2}}),
|
|
}},
|
|
expected: NewMockSeriesSet(
|
|
NewListSeries(labels.FromStrings("bar", "baz"), []tsdbutil.Sample{sample{1, 1}, sample{2, 2}, sample{3, 3}}),
|
|
NewListSeries(labels.FromStrings("foo", "bar"), []tsdbutil.Sample{sample{0, 0}, sample{1, 1}, sample{2, 2}}),
|
|
),
|
|
},
|
|
{
|
|
name: "2 queriers, 1 different series each",
|
|
querierSeries: [][]Series{{
|
|
NewListSeries(labels.FromStrings("bar", "baz"), []tsdbutil.Sample{sample{1, 1}, sample{2, 2}, sample{3, 3}}),
|
|
}, {
|
|
NewListSeries(labels.FromStrings("foo", "bar"), []tsdbutil.Sample{sample{0, 0}, sample{1, 1}, sample{2, 2}}),
|
|
}},
|
|
expected: NewMockSeriesSet(
|
|
NewListSeries(labels.FromStrings("bar", "baz"), []tsdbutil.Sample{sample{1, 1}, sample{2, 2}, sample{3, 3}}),
|
|
NewListSeries(labels.FromStrings("foo", "bar"), []tsdbutil.Sample{sample{0, 0}, sample{1, 1}, sample{2, 2}}),
|
|
),
|
|
},
|
|
{
|
|
name: "2 time unsorted queriers, 2 series each",
|
|
querierSeries: [][]Series{{
|
|
NewListSeries(labels.FromStrings("bar", "baz"), []tsdbutil.Sample{sample{5, 5}, sample{6, 6}}),
|
|
NewListSeries(labels.FromStrings("foo", "bar"), []tsdbutil.Sample{sample{0, 0}, sample{1, 1}, sample{2, 2}}),
|
|
}, {
|
|
NewListSeries(labels.FromStrings("bar", "baz"), []tsdbutil.Sample{sample{1, 1}, sample{2, 2}, sample{3, 3}}),
|
|
NewListSeries(labels.FromStrings("foo", "bar"), []tsdbutil.Sample{sample{3, 3}, sample{4, 4}}),
|
|
}},
|
|
expected: NewMockSeriesSet(
|
|
NewListSeries(
|
|
labels.FromStrings("bar", "baz"),
|
|
[]tsdbutil.Sample{sample{1, 1}, sample{2, 2}, sample{3, 3}, sample{5, 5}, sample{6, 6}},
|
|
),
|
|
NewListSeries(
|
|
labels.FromStrings("foo", "bar"),
|
|
[]tsdbutil.Sample{sample{0, 0}, sample{1, 1}, sample{2, 2}, sample{3, 3}, sample{4, 4}},
|
|
),
|
|
),
|
|
},
|
|
{
|
|
name: "5 queriers, only 2 queriers have 2 time unsorted series each",
|
|
querierSeries: [][]Series{{}, {}, {
|
|
NewListSeries(labels.FromStrings("bar", "baz"), []tsdbutil.Sample{sample{5, 5}, sample{6, 6}}),
|
|
NewListSeries(labels.FromStrings("foo", "bar"), []tsdbutil.Sample{sample{0, 0}, sample{1, 1}, sample{2, 2}}),
|
|
}, {
|
|
NewListSeries(labels.FromStrings("bar", "baz"), []tsdbutil.Sample{sample{1, 1}, sample{2, 2}, sample{3, 3}}),
|
|
NewListSeries(labels.FromStrings("foo", "bar"), []tsdbutil.Sample{sample{3, 3}, sample{4, 4}}),
|
|
}, {}},
|
|
expected: NewMockSeriesSet(
|
|
NewListSeries(
|
|
labels.FromStrings("bar", "baz"),
|
|
[]tsdbutil.Sample{sample{1, 1}, sample{2, 2}, sample{3, 3}, sample{5, 5}, sample{6, 6}},
|
|
),
|
|
NewListSeries(
|
|
labels.FromStrings("foo", "bar"),
|
|
[]tsdbutil.Sample{sample{0, 0}, sample{1, 1}, sample{2, 2}, sample{3, 3}, sample{4, 4}},
|
|
),
|
|
),
|
|
},
|
|
{
|
|
name: "2 queriers, only 2 queriers have 2 time unsorted series each, with 3 noop and one nil querier together",
|
|
querierSeries: [][]Series{{}, {}, {
|
|
NewListSeries(labels.FromStrings("bar", "baz"), []tsdbutil.Sample{sample{5, 5}, sample{6, 6}}),
|
|
NewListSeries(labels.FromStrings("foo", "bar"), []tsdbutil.Sample{sample{0, 0}, sample{1, 1}, sample{2, 2}}),
|
|
}, {
|
|
NewListSeries(labels.FromStrings("bar", "baz"), []tsdbutil.Sample{sample{1, 1}, sample{2, 2}, sample{3, 3}}),
|
|
NewListSeries(labels.FromStrings("foo", "bar"), []tsdbutil.Sample{sample{3, 3}, sample{4, 4}}),
|
|
}, {}},
|
|
extraQueriers: []Querier{NoopQuerier(), NoopQuerier(), nil, NoopQuerier()},
|
|
expected: NewMockSeriesSet(
|
|
NewListSeries(
|
|
labels.FromStrings("bar", "baz"),
|
|
[]tsdbutil.Sample{sample{1, 1}, sample{2, 2}, sample{3, 3}, sample{5, 5}, sample{6, 6}},
|
|
),
|
|
NewListSeries(
|
|
labels.FromStrings("foo", "bar"),
|
|
[]tsdbutil.Sample{sample{0, 0}, sample{1, 1}, sample{2, 2}, sample{3, 3}, sample{4, 4}},
|
|
),
|
|
),
|
|
},
|
|
{
|
|
name: "2 queriers, with 2 series, one is overlapping",
|
|
querierSeries: [][]Series{{}, {}, {
|
|
NewListSeries(labels.FromStrings("bar", "baz"), []tsdbutil.Sample{sample{2, 21}, sample{3, 31}, sample{5, 5}, sample{6, 6}}),
|
|
NewListSeries(labels.FromStrings("foo", "bar"), []tsdbutil.Sample{sample{0, 0}, sample{1, 1}, sample{2, 2}}),
|
|
}, {
|
|
NewListSeries(labels.FromStrings("bar", "baz"), []tsdbutil.Sample{sample{1, 1}, sample{2, 22}, sample{3, 32}}),
|
|
NewListSeries(labels.FromStrings("foo", "bar"), []tsdbutil.Sample{sample{3, 3}, sample{4, 4}}),
|
|
}, {}},
|
|
expected: NewMockSeriesSet(
|
|
NewListSeries(
|
|
labels.FromStrings("bar", "baz"),
|
|
[]tsdbutil.Sample{sample{1, 1}, sample{2, 21}, sample{3, 31}, sample{5, 5}, sample{6, 6}},
|
|
),
|
|
NewListSeries(
|
|
labels.FromStrings("foo", "bar"),
|
|
[]tsdbutil.Sample{sample{0, 0}, sample{1, 1}, sample{2, 2}, sample{3, 3}, sample{4, 4}},
|
|
),
|
|
),
|
|
},
|
|
{
|
|
name: "2 queries, one with NaN samples series",
|
|
querierSeries: [][]Series{{
|
|
NewListSeries(labels.FromStrings("foo", "bar"), []tsdbutil.Sample{sample{0, math.NaN()}}),
|
|
}, {
|
|
NewListSeries(labels.FromStrings("foo", "bar"), []tsdbutil.Sample{sample{1, 1}}),
|
|
}},
|
|
expected: NewMockSeriesSet(
|
|
NewListSeries(labels.FromStrings("foo", "bar"), []tsdbutil.Sample{sample{0, math.NaN()}, sample{1, 1}}),
|
|
),
|
|
},
|
|
} {
|
|
t.Run(tc.name, func(t *testing.T) {
|
|
var qs []Querier
|
|
for _, in := range tc.querierSeries {
|
|
qs = append(qs, &mockQuerier{toReturn: in})
|
|
}
|
|
qs = append(qs, tc.extraQueriers...)
|
|
|
|
merged, _, _ := NewMergeQuerier(qs[0], qs, ChainedSeriesMerge).Select(false, nil)
|
|
for merged.Next() {
|
|
testutil.Assert(t, tc.expected.Next(), "Expected Next() to be true")
|
|
actualSeries := merged.At()
|
|
expectedSeries := tc.expected.At()
|
|
testutil.Equals(t, expectedSeries.Labels(), actualSeries.Labels())
|
|
|
|
expSmpl, expErr := ExpandSamples(expectedSeries.Iterator())
|
|
actSmpl, actErr := ExpandSamples(actualSeries.Iterator())
|
|
testutil.Equals(t, expErr, actErr)
|
|
testutil.Equals(t, expSmpl, actSmpl)
|
|
}
|
|
testutil.Ok(t, merged.Err())
|
|
testutil.Assert(t, !tc.expected.Next(), "Expected Next() to be false")
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestMergeChunkQuerierWithNoVerticalChunkSeriesMerger(t *testing.T) {
|
|
for _, tc := range []struct {
|
|
name string
|
|
chkQuerierSeries [][]ChunkSeries
|
|
extraQueriers []ChunkQuerier
|
|
|
|
expected ChunkSeriesSet
|
|
}{
|
|
{
|
|
name: "one querier with no series",
|
|
chkQuerierSeries: [][]ChunkSeries{{}},
|
|
expected: NewMockChunkSeriesSet(),
|
|
},
|
|
{
|
|
name: "many queriers with no series",
|
|
chkQuerierSeries: [][]ChunkSeries{{}, {}, {}, {}, {}, {}, {}},
|
|
expected: NewMockChunkSeriesSet(),
|
|
},
|
|
{
|
|
name: "one querier, two series",
|
|
chkQuerierSeries: [][]ChunkSeries{{
|
|
NewListChunkSeriesFromSamples(labels.FromStrings("bar", "baz"), []tsdbutil.Sample{sample{1, 1}, sample{2, 2}}, []tsdbutil.Sample{sample{3, 3}}),
|
|
NewListChunkSeriesFromSamples(labels.FromStrings("foo", "bar"), []tsdbutil.Sample{sample{0, 0}, sample{1, 1}}, []tsdbutil.Sample{sample{2, 2}}),
|
|
}},
|
|
expected: NewMockChunkSeriesSet(
|
|
NewListChunkSeriesFromSamples(labels.FromStrings("bar", "baz"), []tsdbutil.Sample{sample{1, 1}, sample{2, 2}}, []tsdbutil.Sample{sample{3, 3}}),
|
|
NewListChunkSeriesFromSamples(labels.FromStrings("foo", "bar"), []tsdbutil.Sample{sample{0, 0}, sample{1, 1}}, []tsdbutil.Sample{sample{2, 2}}),
|
|
),
|
|
},
|
|
{
|
|
name: "two queriers, one different series each",
|
|
chkQuerierSeries: [][]ChunkSeries{{
|
|
NewListChunkSeriesFromSamples(labels.FromStrings("bar", "baz"), []tsdbutil.Sample{sample{1, 1}, sample{2, 2}}, []tsdbutil.Sample{sample{3, 3}}),
|
|
}, {
|
|
NewListChunkSeriesFromSamples(labels.FromStrings("foo", "bar"), []tsdbutil.Sample{sample{0, 0}, sample{1, 1}}, []tsdbutil.Sample{sample{2, 2}}),
|
|
}},
|
|
expected: NewMockChunkSeriesSet(
|
|
NewListChunkSeriesFromSamples(labels.FromStrings("bar", "baz"), []tsdbutil.Sample{sample{1, 1}, sample{2, 2}}, []tsdbutil.Sample{sample{3, 3}}),
|
|
NewListChunkSeriesFromSamples(labels.FromStrings("foo", "bar"), []tsdbutil.Sample{sample{0, 0}, sample{1, 1}}, []tsdbutil.Sample{sample{2, 2}}),
|
|
),
|
|
},
|
|
{
|
|
name: "two queriers, two not in time order series each",
|
|
chkQuerierSeries: [][]ChunkSeries{{
|
|
NewListChunkSeriesFromSamples(labels.FromStrings("bar", "baz"), []tsdbutil.Sample{sample{5, 5}}, []tsdbutil.Sample{sample{6, 6}}),
|
|
NewListChunkSeriesFromSamples(labels.FromStrings("foo", "bar"), []tsdbutil.Sample{sample{0, 0}, sample{1, 1}}, []tsdbutil.Sample{sample{2, 2}}),
|
|
}, {
|
|
NewListChunkSeriesFromSamples(labels.FromStrings("bar", "baz"), []tsdbutil.Sample{sample{1, 1}, sample{2, 2}}, []tsdbutil.Sample{sample{3, 3}}),
|
|
NewListChunkSeriesFromSamples(labels.FromStrings("foo", "bar"), []tsdbutil.Sample{sample{3, 3}}, []tsdbutil.Sample{sample{4, 4}}),
|
|
}},
|
|
expected: NewMockChunkSeriesSet(
|
|
NewListChunkSeriesFromSamples(labels.FromStrings("bar", "baz"),
|
|
[]tsdbutil.Sample{sample{1, 1}, sample{2, 2}},
|
|
[]tsdbutil.Sample{sample{3, 3}},
|
|
[]tsdbutil.Sample{sample{5, 5}},
|
|
[]tsdbutil.Sample{sample{6, 6}},
|
|
),
|
|
NewListChunkSeriesFromSamples(labels.FromStrings("foo", "bar"),
|
|
[]tsdbutil.Sample{sample{0, 0}, sample{1, 1}},
|
|
[]tsdbutil.Sample{sample{2, 2}},
|
|
[]tsdbutil.Sample{sample{3, 3}},
|
|
[]tsdbutil.Sample{sample{4, 4}},
|
|
),
|
|
),
|
|
},
|
|
{
|
|
name: "five queriers, only two have two not in time order series each",
|
|
chkQuerierSeries: [][]ChunkSeries{{}, {}, {
|
|
NewListChunkSeriesFromSamples(labels.FromStrings("bar", "baz"), []tsdbutil.Sample{sample{5, 5}}, []tsdbutil.Sample{sample{6, 6}}),
|
|
NewListChunkSeriesFromSamples(labels.FromStrings("foo", "bar"), []tsdbutil.Sample{sample{0, 0}, sample{1, 1}}, []tsdbutil.Sample{sample{2, 2}}),
|
|
}, {
|
|
NewListChunkSeriesFromSamples(labels.FromStrings("bar", "baz"), []tsdbutil.Sample{sample{1, 1}, sample{2, 2}}, []tsdbutil.Sample{sample{3, 3}}),
|
|
NewListChunkSeriesFromSamples(labels.FromStrings("foo", "bar"), []tsdbutil.Sample{sample{3, 3}}, []tsdbutil.Sample{sample{4, 4}}),
|
|
}, {}},
|
|
expected: NewMockChunkSeriesSet(
|
|
NewListChunkSeriesFromSamples(labels.FromStrings("bar", "baz"),
|
|
[]tsdbutil.Sample{sample{1, 1}, sample{2, 2}},
|
|
[]tsdbutil.Sample{sample{3, 3}},
|
|
[]tsdbutil.Sample{sample{5, 5}},
|
|
[]tsdbutil.Sample{sample{6, 6}},
|
|
),
|
|
NewListChunkSeriesFromSamples(labels.FromStrings("foo", "bar"),
|
|
[]tsdbutil.Sample{sample{0, 0}, sample{1, 1}},
|
|
[]tsdbutil.Sample{sample{2, 2}},
|
|
[]tsdbutil.Sample{sample{3, 3}},
|
|
[]tsdbutil.Sample{sample{4, 4}},
|
|
),
|
|
),
|
|
},
|
|
{
|
|
name: "two queriers, with two not in time order series each, with 3 noop queries and one nil together",
|
|
chkQuerierSeries: [][]ChunkSeries{{
|
|
NewListChunkSeriesFromSamples(labels.FromStrings("bar", "baz"), []tsdbutil.Sample{sample{5, 5}}, []tsdbutil.Sample{sample{6, 6}}),
|
|
NewListChunkSeriesFromSamples(labels.FromStrings("foo", "bar"), []tsdbutil.Sample{sample{0, 0}, sample{1, 1}}, []tsdbutil.Sample{sample{2, 2}}),
|
|
}, {
|
|
NewListChunkSeriesFromSamples(labels.FromStrings("bar", "baz"), []tsdbutil.Sample{sample{1, 1}, sample{2, 2}}, []tsdbutil.Sample{sample{3, 3}}),
|
|
NewListChunkSeriesFromSamples(labels.FromStrings("foo", "bar"), []tsdbutil.Sample{sample{3, 3}}, []tsdbutil.Sample{sample{4, 4}}),
|
|
}},
|
|
extraQueriers: []ChunkQuerier{NoopChunkedQuerier(), NoopChunkedQuerier(), nil, NoopChunkedQuerier()},
|
|
expected: NewMockChunkSeriesSet(
|
|
NewListChunkSeriesFromSamples(labels.FromStrings("bar", "baz"),
|
|
[]tsdbutil.Sample{sample{1, 1}, sample{2, 2}},
|
|
[]tsdbutil.Sample{sample{3, 3}},
|
|
[]tsdbutil.Sample{sample{5, 5}},
|
|
[]tsdbutil.Sample{sample{6, 6}},
|
|
),
|
|
NewListChunkSeriesFromSamples(labels.FromStrings("foo", "bar"),
|
|
[]tsdbutil.Sample{sample{0, 0}, sample{1, 1}},
|
|
[]tsdbutil.Sample{sample{2, 2}},
|
|
[]tsdbutil.Sample{sample{3, 3}},
|
|
[]tsdbutil.Sample{sample{4, 4}},
|
|
),
|
|
),
|
|
},
|
|
{
|
|
name: "two queries, one with NaN samples series",
|
|
chkQuerierSeries: [][]ChunkSeries{{
|
|
NewListChunkSeriesFromSamples(labels.FromStrings("foo", "bar"), []tsdbutil.Sample{sample{0, math.NaN()}}),
|
|
}, {
|
|
NewListChunkSeriesFromSamples(labels.FromStrings("foo", "bar"), []tsdbutil.Sample{sample{1, 1}}),
|
|
}},
|
|
expected: NewMockChunkSeriesSet(
|
|
NewListChunkSeriesFromSamples(labels.FromStrings("foo", "bar"), []tsdbutil.Sample{sample{0, math.NaN()}}, []tsdbutil.Sample{sample{1, 1}}),
|
|
),
|
|
},
|
|
} {
|
|
t.Run(tc.name, func(t *testing.T) {
|
|
var qs []ChunkQuerier
|
|
for _, in := range tc.chkQuerierSeries {
|
|
qs = append(qs, &mockChunkQurier{toReturn: in})
|
|
}
|
|
qs = append(qs, tc.extraQueriers...)
|
|
|
|
merged, _, _ := NewMergeChunkQuerier(qs[0], qs, NewVerticalChunkSeriesMerger(nil)).Select(false, nil)
|
|
for merged.Next() {
|
|
testutil.Assert(t, tc.expected.Next(), "Expected Next() to be true")
|
|
actualSeries := merged.At()
|
|
expectedSeries := tc.expected.At()
|
|
testutil.Equals(t, expectedSeries.Labels(), actualSeries.Labels())
|
|
|
|
expChks, expErr := ExpandChunks(expectedSeries.Iterator())
|
|
actChks, actErr := ExpandChunks(actualSeries.Iterator())
|
|
testutil.Equals(t, expErr, actErr)
|
|
testutil.Equals(t, expChks, actChks)
|
|
|
|
}
|
|
testutil.Ok(t, merged.Err())
|
|
testutil.Assert(t, !tc.expected.Next(), "Expected Next() to be false")
|
|
})
|
|
}
|
|
}
|
|
|
|
type mockQuerier struct {
|
|
baseQuerier
|
|
|
|
toReturn []Series
|
|
}
|
|
|
|
type seriesByLabel []Series
|
|
|
|
func (a seriesByLabel) Len() int { return len(a) }
|
|
func (a seriesByLabel) Swap(i, j int) { a[i], a[j] = a[j], a[i] }
|
|
func (a seriesByLabel) Less(i, j int) bool { return labels.Compare(a[i].Labels(), a[j].Labels()) < 0 }
|
|
|
|
func (m *mockQuerier) Select(sortSeries bool, _ *SelectHints, _ ...*labels.Matcher) (SeriesSet, Warnings, error) {
|
|
cpy := make([]Series, len(m.toReturn))
|
|
copy(cpy, m.toReturn)
|
|
if sortSeries {
|
|
sort.Sort(seriesByLabel(cpy))
|
|
}
|
|
|
|
return NewMockSeriesSet(cpy...), nil, nil
|
|
}
|
|
|
|
type mockChunkQurier struct {
|
|
baseQuerier
|
|
|
|
toReturn []ChunkSeries
|
|
}
|
|
|
|
type chunkSeriesByLabel []ChunkSeries
|
|
|
|
func (a chunkSeriesByLabel) Len() int { return len(a) }
|
|
func (a chunkSeriesByLabel) Swap(i, j int) { a[i], a[j] = a[j], a[i] }
|
|
func (a chunkSeriesByLabel) Less(i, j int) bool {
|
|
return labels.Compare(a[i].Labels(), a[j].Labels()) < 0
|
|
}
|
|
|
|
func (m *mockChunkQurier) Select(sortSeries bool, _ *SelectHints, _ ...*labels.Matcher) (ChunkSeriesSet, Warnings, error) {
|
|
cpy := make([]ChunkSeries, len(m.toReturn))
|
|
copy(cpy, m.toReturn)
|
|
if sortSeries {
|
|
sort.Sort(chunkSeriesByLabel(cpy))
|
|
}
|
|
|
|
return NewMockChunkSeriesSet(cpy...), nil, nil
|
|
}
|
|
|
|
type mockSeriesSet struct {
|
|
idx int
|
|
series []Series
|
|
}
|
|
|
|
func NewMockSeriesSet(series ...Series) SeriesSet {
|
|
return &mockSeriesSet{
|
|
idx: -1,
|
|
series: series,
|
|
}
|
|
}
|
|
|
|
func (m *mockSeriesSet) Next() bool {
|
|
m.idx++
|
|
return m.idx < len(m.series)
|
|
}
|
|
|
|
func (m *mockSeriesSet) At() Series { return m.series[m.idx] }
|
|
|
|
func (m *mockSeriesSet) Err() error { return nil }
|
|
|
|
type mockChunkSeriesSet struct {
|
|
idx int
|
|
series []ChunkSeries
|
|
}
|
|
|
|
func NewMockChunkSeriesSet(series ...ChunkSeries) ChunkSeriesSet {
|
|
return &mockChunkSeriesSet{
|
|
idx: -1,
|
|
series: series,
|
|
}
|
|
}
|
|
|
|
func (m *mockChunkSeriesSet) Next() bool {
|
|
m.idx++
|
|
return m.idx < len(m.series)
|
|
}
|
|
|
|
func (m *mockChunkSeriesSet) At() ChunkSeries { return m.series[m.idx] }
|
|
|
|
func (m *mockChunkSeriesSet) Err() error { return nil }
|
|
|
|
func TestChainSampleIterator(t *testing.T) {
|
|
for _, tc := range []struct {
|
|
input []chunkenc.Iterator
|
|
expected []tsdbutil.Sample
|
|
}{
|
|
{
|
|
input: []chunkenc.Iterator{
|
|
NewListSeriesIterator([]tsdbutil.Sample{sample{0, 0}, sample{1, 1}}),
|
|
},
|
|
expected: []tsdbutil.Sample{sample{0, 0}, sample{1, 1}},
|
|
},
|
|
{
|
|
input: []chunkenc.Iterator{
|
|
NewListSeriesIterator([]tsdbutil.Sample{sample{0, 0}, sample{1, 1}}),
|
|
NewListSeriesIterator([]tsdbutil.Sample{sample{2, 2}, sample{3, 3}}),
|
|
},
|
|
expected: []tsdbutil.Sample{sample{0, 0}, sample{1, 1}, sample{2, 2}, sample{3, 3}},
|
|
},
|
|
{
|
|
input: []chunkenc.Iterator{
|
|
NewListSeriesIterator([]tsdbutil.Sample{sample{0, 0}, sample{3, 3}}),
|
|
NewListSeriesIterator([]tsdbutil.Sample{sample{1, 1}, sample{4, 4}}),
|
|
NewListSeriesIterator([]tsdbutil.Sample{sample{2, 2}, sample{5, 5}}),
|
|
},
|
|
expected: []tsdbutil.Sample{
|
|
sample{0, 0}, sample{1, 1}, sample{2, 2}, sample{3, 3}, sample{4, 4}, sample{5, 5}},
|
|
},
|
|
// Overlap.
|
|
{
|
|
input: []chunkenc.Iterator{
|
|
NewListSeriesIterator([]tsdbutil.Sample{sample{0, 0}, sample{1, 1}}),
|
|
NewListSeriesIterator([]tsdbutil.Sample{sample{0, 0}, sample{2, 2}}),
|
|
NewListSeriesIterator([]tsdbutil.Sample{sample{2, 2}, sample{3, 3}}),
|
|
NewListSeriesIterator([]tsdbutil.Sample{}),
|
|
NewListSeriesIterator([]tsdbutil.Sample{}),
|
|
NewListSeriesIterator([]tsdbutil.Sample{}),
|
|
},
|
|
expected: []tsdbutil.Sample{sample{0, 0}, sample{1, 1}, sample{2, 2}, sample{3, 3}},
|
|
},
|
|
} {
|
|
merged := newChainSampleIterator(tc.input)
|
|
actual, err := ExpandSamples(merged)
|
|
testutil.Ok(t, err)
|
|
testutil.Equals(t, tc.expected, actual)
|
|
}
|
|
}
|
|
|
|
func TestChainSampleIteratorSeek(t *testing.T) {
|
|
for _, tc := range []struct {
|
|
input []chunkenc.Iterator
|
|
seek int64
|
|
expected []tsdbutil.Sample
|
|
}{
|
|
{
|
|
input: []chunkenc.Iterator{
|
|
NewListSeriesIterator([]tsdbutil.Sample{sample{0, 0}, sample{1, 1}, sample{2, 2}}),
|
|
},
|
|
seek: 1,
|
|
expected: []tsdbutil.Sample{sample{1, 1}, sample{2, 2}},
|
|
},
|
|
{
|
|
input: []chunkenc.Iterator{
|
|
NewListSeriesIterator([]tsdbutil.Sample{sample{0, 0}, sample{1, 1}}),
|
|
NewListSeriesIterator([]tsdbutil.Sample{sample{2, 2}, sample{3, 3}}),
|
|
},
|
|
seek: 2,
|
|
expected: []tsdbutil.Sample{sample{2, 2}, sample{3, 3}},
|
|
},
|
|
{
|
|
input: []chunkenc.Iterator{
|
|
NewListSeriesIterator([]tsdbutil.Sample{sample{0, 0}, sample{3, 3}}),
|
|
NewListSeriesIterator([]tsdbutil.Sample{sample{1, 1}, sample{4, 4}}),
|
|
NewListSeriesIterator([]tsdbutil.Sample{sample{2, 2}, sample{5, 5}}),
|
|
},
|
|
seek: 2,
|
|
expected: []tsdbutil.Sample{sample{2, 2}, sample{3, 3}, sample{4, 4}, sample{5, 5}},
|
|
},
|
|
} {
|
|
merged := newChainSampleIterator(tc.input)
|
|
actual := []tsdbutil.Sample{}
|
|
if merged.Seek(tc.seek) {
|
|
t, v := merged.At()
|
|
actual = append(actual, sample{t, v})
|
|
}
|
|
s, err := ExpandSamples(merged)
|
|
testutil.Ok(t, err)
|
|
actual = append(actual, s...)
|
|
testutil.Equals(t, tc.expected, actual)
|
|
}
|
|
}
|
|
|
|
var result []tsdbutil.Sample
|
|
|
|
func makeSeriesSet(numSeries, numSamples int) SeriesSet {
|
|
series := []Series{}
|
|
for j := 0; j < numSeries; j++ {
|
|
labels := labels.Labels{{Name: "foo", Value: fmt.Sprintf("bar%d", j)}}
|
|
samples := []tsdbutil.Sample{}
|
|
for k := 0; k < numSamples; k++ {
|
|
samples = append(samples, sample{t: int64(k), v: float64(k)})
|
|
}
|
|
series = append(series, NewListSeries(labels, samples))
|
|
}
|
|
return NewMockSeriesSet(series...)
|
|
}
|
|
|
|
func makeMergeSeriesSet(numSeriesSets, numSeries, numSamples int) SeriesSet {
|
|
seriesSets := []genericSeriesSet{}
|
|
for i := 0; i < numSeriesSets; i++ {
|
|
seriesSets = append(seriesSets, &genericSeriesSetAdapter{makeSeriesSet(numSeries, numSamples)})
|
|
}
|
|
return &seriesSetAdapter{newGenericMergeSeriesSet(seriesSets, nil, (&seriesMergerAdapter{VerticalSeriesMergeFunc: ChainedSeriesMerge}).Merge)}
|
|
}
|
|
|
|
func benchmarkDrain(seriesSet SeriesSet, b *testing.B) {
|
|
var err error
|
|
for n := 0; n < b.N; n++ {
|
|
for seriesSet.Next() {
|
|
result, err = ExpandSamples(seriesSet.At().Iterator())
|
|
testutil.Ok(b, err)
|
|
}
|
|
}
|
|
}
|
|
|
|
func BenchmarkNoMergeSeriesSet_100_100(b *testing.B) {
|
|
seriesSet := makeSeriesSet(100, 100)
|
|
benchmarkDrain(seriesSet, b)
|
|
}
|
|
|
|
func BenchmarkMergeSeriesSet(b *testing.B) {
|
|
for _, bm := range []struct {
|
|
numSeriesSets, numSeries, numSamples int
|
|
}{
|
|
{1, 100, 100},
|
|
{10, 100, 100},
|
|
{100, 100, 100},
|
|
} {
|
|
seriesSet := makeMergeSeriesSet(bm.numSeriesSets, bm.numSeries, bm.numSamples)
|
|
b.Run(fmt.Sprintf("%d_%d_%d", bm.numSeriesSets, bm.numSeries, bm.numSamples), func(b *testing.B) {
|
|
benchmarkDrain(seriesSet, b)
|
|
})
|
|
}
|
|
}
|