prometheus/storage/remote/read_test.go
Robert Fratto a53e00f9fd
pass registerer from storage to queue manager for its metrics (#6728)
* pass registerer from storage to queue manager for its metrics

Signed-off-by: Robert Fratto <robert.fratto@grafana.com>
2020-02-03 13:47:03 -08:00

413 lines
11 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 remote
import (
"context"
"io/ioutil"
"net/url"
"os"
"reflect"
"sort"
"testing"
config_util "github.com/prometheus/common/config"
"github.com/prometheus/prometheus/config"
"github.com/prometheus/prometheus/pkg/labels"
"github.com/prometheus/prometheus/prompb"
"github.com/prometheus/prometheus/storage"
"github.com/prometheus/prometheus/util/testutil"
)
func TestNoDuplicateReadConfigs(t *testing.T) {
dir, err := ioutil.TempDir("", "TestNoDuplicateReadConfigs")
testutil.Ok(t, err)
defer os.RemoveAll(dir)
cfg1 := config.RemoteReadConfig{
Name: "write-1",
URL: &config_util.URL{
URL: &url.URL{
Scheme: "http",
Host: "localhost",
},
},
}
cfg2 := config.RemoteReadConfig{
Name: "write-2",
URL: &config_util.URL{
URL: &url.URL{
Scheme: "http",
Host: "localhost",
},
},
}
cfg3 := config.RemoteReadConfig{
URL: &config_util.URL{
URL: &url.URL{
Scheme: "http",
Host: "localhost",
},
},
}
type testcase struct {
cfgs []*config.RemoteReadConfig
err bool
}
cases := []testcase{
{ // Duplicates but with different names, we should not get an error.
cfgs: []*config.RemoteReadConfig{
&cfg1,
&cfg2,
},
err: false,
},
{ // Duplicates but one with no name, we should not get an error.
cfgs: []*config.RemoteReadConfig{
&cfg1,
&cfg3,
},
err: false,
},
{ // Duplicates both with no name, we should get an error.
cfgs: []*config.RemoteReadConfig{
&cfg3,
&cfg3,
},
err: true,
},
}
for _, tc := range cases {
s := NewStorage(nil, nil, nil, dir, defaultFlushDeadline)
conf := &config.Config{
GlobalConfig: config.DefaultGlobalConfig,
RemoteReadConfigs: tc.cfgs,
}
err := s.ApplyConfig(conf)
gotError := err != nil
testutil.Equals(t, tc.err, gotError)
err = s.Close()
testutil.Ok(t, err)
}
}
func TestExternalLabelsQuerierSelect(t *testing.T) {
matchers := []*labels.Matcher{
labels.MustNewMatcher(labels.MatchEqual, "job", "api-server"),
}
q := &externalLabelsQuerier{
Querier: mockQuerier{},
externalLabels: labels.Labels{
{Name: "region", Value: "europe"},
},
}
want := newSeriesSetFilter(mockSeriesSet{}, q.externalLabels)
have, _, err := q.Select(nil, matchers...)
if err != nil {
t.Error(err)
}
if !reflect.DeepEqual(want, have) {
t.Errorf("expected series set %+v, got %+v", want, have)
}
}
func TestExternalLabelsQuerierAddExternalLabels(t *testing.T) {
tests := []struct {
el labels.Labels
inMatchers []*labels.Matcher
outMatchers []*labels.Matcher
added labels.Labels
}{
{
inMatchers: []*labels.Matcher{
labels.MustNewMatcher(labels.MatchEqual, "job", "api-server"),
},
outMatchers: []*labels.Matcher{
labels.MustNewMatcher(labels.MatchEqual, "job", "api-server"),
},
added: labels.Labels{},
},
{
el: labels.Labels{
{Name: "dc", Value: "berlin-01"},
{Name: "region", Value: "europe"},
},
inMatchers: []*labels.Matcher{
labels.MustNewMatcher(labels.MatchEqual, "job", "api-server"),
},
outMatchers: []*labels.Matcher{
labels.MustNewMatcher(labels.MatchEqual, "job", "api-server"),
labels.MustNewMatcher(labels.MatchEqual, "region", "europe"),
labels.MustNewMatcher(labels.MatchEqual, "dc", "berlin-01"),
},
added: labels.Labels{
{Name: "dc", Value: "berlin-01"},
{Name: "region", Value: "europe"},
},
},
{
el: labels.Labels{
{Name: "region", Value: "europe"},
{Name: "dc", Value: "berlin-01"},
},
inMatchers: []*labels.Matcher{
labels.MustNewMatcher(labels.MatchEqual, "job", "api-server"),
labels.MustNewMatcher(labels.MatchEqual, "dc", "munich-02"),
},
outMatchers: []*labels.Matcher{
labels.MustNewMatcher(labels.MatchEqual, "job", "api-server"),
labels.MustNewMatcher(labels.MatchEqual, "region", "europe"),
labels.MustNewMatcher(labels.MatchEqual, "dc", "munich-02"),
},
added: labels.Labels{
{Name: "region", Value: "europe"},
},
},
}
for i, test := range tests {
q := &externalLabelsQuerier{Querier: mockQuerier{}, externalLabels: test.el}
matchers, added := q.addExternalLabels(test.inMatchers)
sort.Slice(test.outMatchers, func(i, j int) bool { return test.outMatchers[i].Name < test.outMatchers[j].Name })
sort.Slice(matchers, func(i, j int) bool { return matchers[i].Name < matchers[j].Name })
if !reflect.DeepEqual(matchers, test.outMatchers) {
t.Fatalf("%d. unexpected matchers; want %v, got %v", i, test.outMatchers, matchers)
}
if !reflect.DeepEqual(added, test.added) {
t.Fatalf("%d. unexpected added labels; want %v, got %v", i, test.added, added)
}
}
}
func TestSeriesSetFilter(t *testing.T) {
tests := []struct {
in *prompb.QueryResult
toRemove labels.Labels
expected *prompb.QueryResult
}{
{
toRemove: labels.Labels{{Name: "foo", Value: "bar"}},
in: &prompb.QueryResult{
Timeseries: []*prompb.TimeSeries{
{Labels: labelsToLabelsProto(labels.FromStrings("foo", "bar", "a", "b"), nil), Samples: []prompb.Sample{}},
},
},
expected: &prompb.QueryResult{
Timeseries: []*prompb.TimeSeries{
{Labels: labelsToLabelsProto(labels.FromStrings("a", "b"), nil), Samples: []prompb.Sample{}},
},
},
},
}
for i, tc := range tests {
filtered := newSeriesSetFilter(FromQueryResult(tc.in), tc.toRemove)
have, err := ToQueryResult(filtered, 1e6)
if err != nil {
t.Fatal(err)
}
if !reflect.DeepEqual(have, tc.expected) {
t.Fatalf("%d. unexpected labels; want %v, got %v", i, tc.expected, have)
}
}
}
type mockQuerier struct {
ctx context.Context
mint, maxt int64
storage.Querier
}
type mockSeriesSet struct {
storage.SeriesSet
}
func (mockQuerier) Select(*storage.SelectParams, ...*labels.Matcher) (storage.SeriesSet, storage.Warnings, error) {
return mockSeriesSet{}, nil, nil
}
func TestPreferLocalStorageFilter(t *testing.T) {
ctx := context.Background()
tests := []struct {
localStartTime int64
mint int64
maxt int64
querier storage.Querier
}{
{
localStartTime: int64(100),
mint: int64(0),
maxt: int64(50),
querier: mockQuerier{ctx: ctx, mint: 0, maxt: 50},
},
{
localStartTime: int64(20),
mint: int64(0),
maxt: int64(50),
querier: mockQuerier{ctx: ctx, mint: 0, maxt: 20},
},
{
localStartTime: int64(20),
mint: int64(30),
maxt: int64(50),
querier: storage.NoopQuerier(),
},
}
for i, test := range tests {
f := PreferLocalStorageFilter(
storage.QueryableFunc(func(ctx context.Context, mint, maxt int64) (storage.Querier, error) {
return mockQuerier{ctx: ctx, mint: mint, maxt: maxt}, nil
}),
func() (int64, error) { return test.localStartTime, nil },
)
q, err := f.Querier(ctx, test.mint, test.maxt)
if err != nil {
t.Fatal(err)
}
if test.querier != q {
t.Errorf("%d. expected querier %+v, got %+v", i, test.querier, q)
}
}
}
func TestRequiredMatchersFilter(t *testing.T) {
ctx := context.Background()
f := RequiredMatchersFilter(
storage.QueryableFunc(func(ctx context.Context, mint, maxt int64) (storage.Querier, error) {
return mockQuerier{ctx: ctx, mint: mint, maxt: maxt}, nil
}),
[]*labels.Matcher{labels.MustNewMatcher(labels.MatchEqual, "special", "label")},
)
want := &requiredMatchersQuerier{
Querier: mockQuerier{ctx: ctx, mint: 0, maxt: 50},
requiredMatchers: []*labels.Matcher{labels.MustNewMatcher(labels.MatchEqual, "special", "label")},
}
have, err := f.Querier(ctx, 0, 50)
if err != nil {
t.Fatal(err)
}
if !reflect.DeepEqual(want, have) {
t.Errorf("expected querier %+v, got %+v", want, have)
}
}
func TestRequiredLabelsQuerierSelect(t *testing.T) {
tests := []struct {
requiredMatchers []*labels.Matcher
matchers []*labels.Matcher
seriesSet storage.SeriesSet
}{
{
requiredMatchers: []*labels.Matcher{},
matchers: []*labels.Matcher{
labels.MustNewMatcher(labels.MatchEqual, "special", "label"),
},
seriesSet: mockSeriesSet{},
},
{
requiredMatchers: []*labels.Matcher{
labels.MustNewMatcher(labels.MatchEqual, "special", "label"),
},
matchers: []*labels.Matcher{
labels.MustNewMatcher(labels.MatchEqual, "special", "label"),
},
seriesSet: mockSeriesSet{},
},
{
requiredMatchers: []*labels.Matcher{
labels.MustNewMatcher(labels.MatchEqual, "special", "label"),
},
matchers: []*labels.Matcher{
labels.MustNewMatcher(labels.MatchRegexp, "special", "label"),
},
seriesSet: storage.NoopSeriesSet(),
},
{
requiredMatchers: []*labels.Matcher{
labels.MustNewMatcher(labels.MatchEqual, "special", "label"),
},
matchers: []*labels.Matcher{
labels.MustNewMatcher(labels.MatchEqual, "special", "different"),
},
seriesSet: storage.NoopSeriesSet(),
},
{
requiredMatchers: []*labels.Matcher{
labels.MustNewMatcher(labels.MatchEqual, "special", "label"),
},
matchers: []*labels.Matcher{
labels.MustNewMatcher(labels.MatchEqual, "special", "label"),
labels.MustNewMatcher(labels.MatchEqual, "foo", "bar"),
},
seriesSet: mockSeriesSet{},
},
{
requiredMatchers: []*labels.Matcher{
labels.MustNewMatcher(labels.MatchEqual, "special", "label"),
labels.MustNewMatcher(labels.MatchEqual, "foo", "bar"),
},
matchers: []*labels.Matcher{
labels.MustNewMatcher(labels.MatchEqual, "special", "label"),
labels.MustNewMatcher(labels.MatchEqual, "foo", "baz"),
},
seriesSet: storage.NoopSeriesSet(),
},
{
requiredMatchers: []*labels.Matcher{
labels.MustNewMatcher(labels.MatchEqual, "special", "label"),
labels.MustNewMatcher(labels.MatchEqual, "foo", "bar"),
},
matchers: []*labels.Matcher{
labels.MustNewMatcher(labels.MatchEqual, "special", "label"),
labels.MustNewMatcher(labels.MatchEqual, "foo", "bar"),
},
seriesSet: mockSeriesSet{},
},
}
for i, test := range tests {
q := &requiredMatchersQuerier{
Querier: mockQuerier{},
requiredMatchers: test.requiredMatchers,
}
have, _, err := q.Select(nil, test.matchers...)
if err != nil {
t.Error(err)
}
if want := test.seriesSet; want != have {
t.Errorf("%d. expected series set %+v, got %+v", i, want, have)
}
if want, have := test.requiredMatchers, q.requiredMatchers; !reflect.DeepEqual(want, have) {
t.Errorf("%d. requiredMatchersQuerier.Select() has modified the matchers", i)
}
}
}