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blocks_store_queryable_test.go
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blocks_store_queryable_test.go
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package querier
import (
"context"
"fmt"
"io"
"strings"
"testing"
"time"
"github.com/go-kit/kit/log"
"github.com/gogo/protobuf/types"
"github.com/oklog/ulid"
"github.com/pkg/errors"
"github.com/prometheus/client_golang/prometheus"
"github.com/prometheus/client_golang/prometheus/testutil"
"github.com/prometheus/prometheus/pkg/labels"
"github.com/prometheus/prometheus/promql"
"github.com/prometheus/prometheus/storage"
"github.com/prometheus/prometheus/tsdb"
"github.com/prometheus/prometheus/tsdb/chunkenc"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/mock"
"github.com/stretchr/testify/require"
"github.com/thanos-io/thanos/pkg/block/metadata"
"github.com/thanos-io/thanos/pkg/store/hintspb"
"github.com/thanos-io/thanos/pkg/store/labelpb"
"github.com/thanos-io/thanos/pkg/store/storepb"
"github.com/weaveworks/common/user"
"google.golang.org/grpc"
"github.com/cortexproject/cortex/pkg/storegateway/storegatewaypb"
"github.com/cortexproject/cortex/pkg/util"
"github.com/cortexproject/cortex/pkg/util/services"
)
func TestBlocksStoreQuerier_Select(t *testing.T) {
const (
metricName = "test_metric"
minT = int64(10)
maxT = int64(20)
)
var (
block1 = ulid.MustNew(1, nil)
block2 = ulid.MustNew(2, nil)
block3 = ulid.MustNew(3, nil)
block4 = ulid.MustNew(4, nil)
metricNameLabel = labels.Label{Name: labels.MetricName, Value: metricName}
series1Label = labels.Label{Name: "series", Value: "1"}
series2Label = labels.Label{Name: "series", Value: "2"}
)
type valueResult struct {
t int64
v float64
}
type seriesResult struct {
lbls labels.Labels
values []valueResult
}
tests := map[string]struct {
finderResult []*BlockMeta
finderErr error
storeSetResponses []interface{}
limits BlocksStoreLimits
expectedSeries []seriesResult
expectedErr string
expectedMetrics string
}{
"no block in the storage matching the query time range": {
finderResult: nil,
limits: &blocksStoreLimitsMock{},
expectedErr: "",
},
"error while finding blocks matching the query time range": {
finderErr: errors.New("unable to find blocks"),
limits: &blocksStoreLimitsMock{},
expectedErr: "unable to find blocks",
},
"error while getting clients to query the store-gateway": {
finderResult: []*BlockMeta{
{Meta: metadata.Meta{BlockMeta: tsdb.BlockMeta{ULID: block1}}},
{Meta: metadata.Meta{BlockMeta: tsdb.BlockMeta{ULID: block2}}},
},
storeSetResponses: []interface{}{
errors.New("no client found"),
},
limits: &blocksStoreLimitsMock{},
expectedErr: "no client found",
},
"a single store-gateway instance holds the required blocks (single returned series)": {
finderResult: []*BlockMeta{
{Meta: metadata.Meta{BlockMeta: tsdb.BlockMeta{ULID: block1}}},
{Meta: metadata.Meta{BlockMeta: tsdb.BlockMeta{ULID: block2}}},
},
storeSetResponses: []interface{}{
map[BlocksStoreClient][]ulid.ULID{
&storeGatewayClientMock{remoteAddr: "1.1.1.1", mockedResponses: []*storepb.SeriesResponse{
mockSeriesResponse(labels.Labels{metricNameLabel}, minT, 1),
mockSeriesResponse(labels.Labels{metricNameLabel}, minT+1, 2),
mockHintsResponse(block1, block2),
}}: {block1, block2},
},
},
limits: &blocksStoreLimitsMock{},
expectedSeries: []seriesResult{
{
lbls: labels.New(metricNameLabel),
values: []valueResult{
{t: minT, v: 1},
{t: minT + 1, v: 2},
},
},
},
},
"a single store-gateway instance holds the required blocks (multiple returned series)": {
finderResult: []*BlockMeta{
{Meta: metadata.Meta{BlockMeta: tsdb.BlockMeta{ULID: block1}}},
{Meta: metadata.Meta{BlockMeta: tsdb.BlockMeta{ULID: block2}}},
},
storeSetResponses: []interface{}{
map[BlocksStoreClient][]ulid.ULID{
&storeGatewayClientMock{remoteAddr: "1.1.1.1", mockedResponses: []*storepb.SeriesResponse{
mockSeriesResponse(labels.Labels{metricNameLabel, series1Label}, minT, 1),
mockSeriesResponse(labels.Labels{metricNameLabel, series1Label}, minT+1, 2),
mockSeriesResponse(labels.Labels{metricNameLabel, series2Label}, minT, 3),
mockHintsResponse(block1, block2),
}}: {block1, block2},
},
},
limits: &blocksStoreLimitsMock{},
expectedSeries: []seriesResult{
{
lbls: labels.New(metricNameLabel, series1Label),
values: []valueResult{
{t: minT, v: 1},
{t: minT + 1, v: 2},
},
}, {
lbls: labels.New(metricNameLabel, series2Label),
values: []valueResult{
{t: minT, v: 3},
},
},
},
},
"multiple store-gateway instances holds the required blocks without overlapping series (single returned series)": {
finderResult: []*BlockMeta{
{Meta: metadata.Meta{BlockMeta: tsdb.BlockMeta{ULID: block1}}},
{Meta: metadata.Meta{BlockMeta: tsdb.BlockMeta{ULID: block2}}},
},
storeSetResponses: []interface{}{
map[BlocksStoreClient][]ulid.ULID{
&storeGatewayClientMock{remoteAddr: "1.1.1.1", mockedResponses: []*storepb.SeriesResponse{
mockSeriesResponse(labels.Labels{metricNameLabel}, minT, 1),
mockHintsResponse(block1),
}}: {block1},
&storeGatewayClientMock{remoteAddr: "2.2.2.2", mockedResponses: []*storepb.SeriesResponse{
mockSeriesResponse(labels.Labels{metricNameLabel}, minT+1, 2),
mockHintsResponse(block2),
}}: {block2},
},
},
limits: &blocksStoreLimitsMock{},
expectedSeries: []seriesResult{
{
lbls: labels.New(metricNameLabel),
values: []valueResult{
{t: minT, v: 1},
{t: minT + 1, v: 2},
},
},
},
},
"multiple store-gateway instances holds the required blocks with overlapping series (single returned series)": {
finderResult: []*BlockMeta{
{Meta: metadata.Meta{BlockMeta: tsdb.BlockMeta{ULID: block1}}},
{Meta: metadata.Meta{BlockMeta: tsdb.BlockMeta{ULID: block2}}},
},
storeSetResponses: []interface{}{
map[BlocksStoreClient][]ulid.ULID{
&storeGatewayClientMock{remoteAddr: "1.1.1.1", mockedResponses: []*storepb.SeriesResponse{
mockSeriesResponse(labels.Labels{metricNameLabel}, minT+1, 2),
mockHintsResponse(block1),
}}: {block1},
&storeGatewayClientMock{remoteAddr: "2.2.2.2", mockedResponses: []*storepb.SeriesResponse{
mockSeriesResponse(labels.Labels{metricNameLabel}, minT, 1),
mockSeriesResponse(labels.Labels{metricNameLabel}, minT+1, 2),
mockHintsResponse(block2),
}}: {block2},
},
},
limits: &blocksStoreLimitsMock{},
expectedSeries: []seriesResult{
{
lbls: labels.New(metricNameLabel),
values: []valueResult{
{t: minT, v: 1},
{t: minT + 1, v: 2},
},
},
},
},
"multiple store-gateway instances holds the required blocks with overlapping series (multiple returned series)": {
finderResult: []*BlockMeta{
{Meta: metadata.Meta{BlockMeta: tsdb.BlockMeta{ULID: block1}}},
{Meta: metadata.Meta{BlockMeta: tsdb.BlockMeta{ULID: block2}}},
},
storeSetResponses: []interface{}{
map[BlocksStoreClient][]ulid.ULID{
&storeGatewayClientMock{remoteAddr: "1.1.1.1", mockedResponses: []*storepb.SeriesResponse{
mockSeriesResponse(labels.Labels{metricNameLabel, series1Label}, minT+1, 2),
mockSeriesResponse(labels.Labels{metricNameLabel, series2Label}, minT, 1),
mockHintsResponse(block1),
}}: {block1},
&storeGatewayClientMock{remoteAddr: "2.2.2.2", mockedResponses: []*storepb.SeriesResponse{
mockSeriesResponse(labels.Labels{metricNameLabel, series1Label}, minT, 1),
mockSeriesResponse(labels.Labels{metricNameLabel, series1Label}, minT+1, 2),
mockHintsResponse(block2),
}}: {block2},
&storeGatewayClientMock{remoteAddr: "3.3.3.3", mockedResponses: []*storepb.SeriesResponse{
mockSeriesResponse(labels.Labels{metricNameLabel, series2Label}, minT, 1),
mockSeriesResponse(labels.Labels{metricNameLabel, series2Label}, minT+1, 3),
mockHintsResponse(block3),
}}: {block3},
},
},
limits: &blocksStoreLimitsMock{},
expectedSeries: []seriesResult{
{
lbls: labels.New(metricNameLabel, series1Label),
values: []valueResult{
{t: minT, v: 1},
{t: minT + 1, v: 2},
},
}, {
lbls: labels.New(metricNameLabel, series2Label),
values: []valueResult{
{t: minT, v: 1},
{t: minT + 1, v: 3},
},
},
},
expectedMetrics: `
# HELP cortex_querier_storegateway_instances_hit_per_query Number of store-gateway instances hit for a single query.
# TYPE cortex_querier_storegateway_instances_hit_per_query histogram
cortex_querier_storegateway_instances_hit_per_query_bucket{le="0"} 0
cortex_querier_storegateway_instances_hit_per_query_bucket{le="1"} 0
cortex_querier_storegateway_instances_hit_per_query_bucket{le="2"} 0
cortex_querier_storegateway_instances_hit_per_query_bucket{le="3"} 1
cortex_querier_storegateway_instances_hit_per_query_bucket{le="4"} 1
cortex_querier_storegateway_instances_hit_per_query_bucket{le="5"} 1
cortex_querier_storegateway_instances_hit_per_query_bucket{le="6"} 1
cortex_querier_storegateway_instances_hit_per_query_bucket{le="7"} 1
cortex_querier_storegateway_instances_hit_per_query_bucket{le="8"} 1
cortex_querier_storegateway_instances_hit_per_query_bucket{le="9"} 1
cortex_querier_storegateway_instances_hit_per_query_bucket{le="10"} 1
cortex_querier_storegateway_instances_hit_per_query_bucket{le="+Inf"} 1
cortex_querier_storegateway_instances_hit_per_query_sum 3
cortex_querier_storegateway_instances_hit_per_query_count 1
# HELP cortex_querier_storegateway_refetches_per_query Number of re-fetches attempted while querying store-gateway instances due to missing blocks.
# TYPE cortex_querier_storegateway_refetches_per_query histogram
cortex_querier_storegateway_refetches_per_query_bucket{le="0"} 1
cortex_querier_storegateway_refetches_per_query_bucket{le="1"} 1
cortex_querier_storegateway_refetches_per_query_bucket{le="2"} 1
cortex_querier_storegateway_refetches_per_query_bucket{le="+Inf"} 1
cortex_querier_storegateway_refetches_per_query_sum 0
cortex_querier_storegateway_refetches_per_query_count 1
`,
},
"a single store-gateway instance has some missing blocks (consistency check failed)": {
finderResult: []*BlockMeta{
{Meta: metadata.Meta{BlockMeta: tsdb.BlockMeta{ULID: block1}}},
{Meta: metadata.Meta{BlockMeta: tsdb.BlockMeta{ULID: block2}}},
},
storeSetResponses: []interface{}{
// First attempt returns a client whose response does not include all expected blocks.
map[BlocksStoreClient][]ulid.ULID{
&storeGatewayClientMock{remoteAddr: "1.1.1.1", mockedResponses: []*storepb.SeriesResponse{
mockSeriesResponse(labels.Labels{metricNameLabel, series1Label}, minT, 1),
mockSeriesResponse(labels.Labels{metricNameLabel, series1Label}, minT+1, 2),
mockHintsResponse(block1),
}}: {block1},
},
// Second attempt returns an error because there are no other store-gateways left.
errors.New("no store-gateway remaining after exclude"),
},
limits: &blocksStoreLimitsMock{},
expectedErr: fmt.Sprintf("consistency check failed because some blocks were not queried: %s", block2.String()),
},
"multiple store-gateway instances have some missing blocks (consistency check failed)": {
finderResult: []*BlockMeta{
{Meta: metadata.Meta{BlockMeta: tsdb.BlockMeta{ULID: block1}}},
{Meta: metadata.Meta{BlockMeta: tsdb.BlockMeta{ULID: block2}}},
{Meta: metadata.Meta{BlockMeta: tsdb.BlockMeta{ULID: block3}}},
{Meta: metadata.Meta{BlockMeta: tsdb.BlockMeta{ULID: block4}}},
},
storeSetResponses: []interface{}{
// First attempt returns a client whose response does not include all expected blocks.
map[BlocksStoreClient][]ulid.ULID{
&storeGatewayClientMock{remoteAddr: "1.1.1.1", mockedResponses: []*storepb.SeriesResponse{
mockSeriesResponse(labels.Labels{metricNameLabel}, minT+1, 2),
mockHintsResponse(block1),
}}: {block1},
&storeGatewayClientMock{remoteAddr: "2.2.2.2", mockedResponses: []*storepb.SeriesResponse{
mockSeriesResponse(labels.Labels{metricNameLabel}, minT+1, 2),
mockHintsResponse(block2),
}}: {block2},
},
// Second attempt returns an error because there are no other store-gateways left.
errors.New("no store-gateway remaining after exclude"),
},
limits: &blocksStoreLimitsMock{},
expectedErr: fmt.Sprintf("consistency check failed because some blocks were not queried: %s %s", block3.String(), block4.String()),
},
"multiple store-gateway instances have some missing blocks but queried from a replica during subsequent attempts": {
finderResult: []*BlockMeta{
{Meta: metadata.Meta{BlockMeta: tsdb.BlockMeta{ULID: block1}}},
{Meta: metadata.Meta{BlockMeta: tsdb.BlockMeta{ULID: block2}}},
{Meta: metadata.Meta{BlockMeta: tsdb.BlockMeta{ULID: block3}}},
{Meta: metadata.Meta{BlockMeta: tsdb.BlockMeta{ULID: block4}}},
},
storeSetResponses: []interface{}{
// First attempt returns a client whose response does not include all expected blocks.
map[BlocksStoreClient][]ulid.ULID{
&storeGatewayClientMock{remoteAddr: "1.1.1.1", mockedResponses: []*storepb.SeriesResponse{
mockSeriesResponse(labels.Labels{metricNameLabel, series1Label}, minT, 1),
mockHintsResponse(block1),
}}: {block1, block3},
&storeGatewayClientMock{remoteAddr: "2.2.2.2", mockedResponses: []*storepb.SeriesResponse{
mockSeriesResponse(labels.Labels{metricNameLabel, series2Label}, minT, 2),
mockHintsResponse(block2),
}}: {block2, block4},
},
// Second attempt returns 1 missing block.
map[BlocksStoreClient][]ulid.ULID{
&storeGatewayClientMock{remoteAddr: "3.3.3.3", mockedResponses: []*storepb.SeriesResponse{
mockSeriesResponse(labels.Labels{metricNameLabel, series1Label}, minT+1, 2),
mockHintsResponse(block3),
}}: {block3, block4},
},
// Third attempt returns the last missing block.
map[BlocksStoreClient][]ulid.ULID{
&storeGatewayClientMock{remoteAddr: "4.4.4.4", mockedResponses: []*storepb.SeriesResponse{
mockSeriesResponse(labels.Labels{metricNameLabel, series2Label}, minT+1, 3),
mockHintsResponse(block4),
}}: {block4},
},
},
limits: &blocksStoreLimitsMock{},
expectedSeries: []seriesResult{
{
lbls: labels.New(metricNameLabel, series1Label),
values: []valueResult{
{t: minT, v: 1},
{t: minT + 1, v: 2},
},
}, {
lbls: labels.New(metricNameLabel, series2Label),
values: []valueResult{
{t: minT, v: 2},
{t: minT + 1, v: 3},
},
},
},
expectedMetrics: `
# HELP cortex_querier_storegateway_instances_hit_per_query Number of store-gateway instances hit for a single query.
# TYPE cortex_querier_storegateway_instances_hit_per_query histogram
cortex_querier_storegateway_instances_hit_per_query_bucket{le="0"} 0
cortex_querier_storegateway_instances_hit_per_query_bucket{le="1"} 0
cortex_querier_storegateway_instances_hit_per_query_bucket{le="2"} 0
cortex_querier_storegateway_instances_hit_per_query_bucket{le="3"} 0
cortex_querier_storegateway_instances_hit_per_query_bucket{le="4"} 1
cortex_querier_storegateway_instances_hit_per_query_bucket{le="5"} 1
cortex_querier_storegateway_instances_hit_per_query_bucket{le="6"} 1
cortex_querier_storegateway_instances_hit_per_query_bucket{le="7"} 1
cortex_querier_storegateway_instances_hit_per_query_bucket{le="8"} 1
cortex_querier_storegateway_instances_hit_per_query_bucket{le="9"} 1
cortex_querier_storegateway_instances_hit_per_query_bucket{le="10"} 1
cortex_querier_storegateway_instances_hit_per_query_bucket{le="+Inf"} 1
cortex_querier_storegateway_instances_hit_per_query_sum 4
cortex_querier_storegateway_instances_hit_per_query_count 1
# HELP cortex_querier_storegateway_refetches_per_query Number of re-fetches attempted while querying store-gateway instances due to missing blocks.
# TYPE cortex_querier_storegateway_refetches_per_query histogram
cortex_querier_storegateway_refetches_per_query_bucket{le="0"} 0
cortex_querier_storegateway_refetches_per_query_bucket{le="1"} 0
cortex_querier_storegateway_refetches_per_query_bucket{le="2"} 1
cortex_querier_storegateway_refetches_per_query_bucket{le="+Inf"} 1
cortex_querier_storegateway_refetches_per_query_sum 2
cortex_querier_storegateway_refetches_per_query_count 1
`,
},
"max chunks per query limit greater then the number of chunks fetched": {
finderResult: []*BlockMeta{
{Meta: metadata.Meta{BlockMeta: tsdb.BlockMeta{ULID: block1}}},
{Meta: metadata.Meta{BlockMeta: tsdb.BlockMeta{ULID: block2}}},
},
storeSetResponses: []interface{}{
map[BlocksStoreClient][]ulid.ULID{
&storeGatewayClientMock{remoteAddr: "1.1.1.1", mockedResponses: []*storepb.SeriesResponse{
mockSeriesResponse(labels.Labels{metricNameLabel, series1Label}, minT, 1),
mockSeriesResponse(labels.Labels{metricNameLabel, series1Label}, minT+1, 2),
mockHintsResponse(block1, block2),
}}: {block1, block2},
},
},
limits: &blocksStoreLimitsMock{maxChunksPerQuery: 3},
expectedSeries: []seriesResult{
{
lbls: labels.New(metricNameLabel, series1Label),
values: []valueResult{
{t: minT, v: 1},
{t: minT + 1, v: 2},
},
},
},
},
"max chunks per query limit hit while fetching chunks at first attempt": {
finderResult: []*BlockMeta{
{Meta: metadata.Meta{BlockMeta: tsdb.BlockMeta{ULID: block1}}},
{Meta: metadata.Meta{BlockMeta: tsdb.BlockMeta{ULID: block2}}},
},
storeSetResponses: []interface{}{
map[BlocksStoreClient][]ulid.ULID{
&storeGatewayClientMock{remoteAddr: "1.1.1.1", mockedResponses: []*storepb.SeriesResponse{
mockSeriesResponse(labels.Labels{metricNameLabel, series1Label}, minT, 1),
mockSeriesResponse(labels.Labels{metricNameLabel, series1Label}, minT+1, 2),
mockHintsResponse(block1, block2),
}}: {block1, block2},
},
},
limits: &blocksStoreLimitsMock{maxChunksPerQuery: 1},
expectedErr: fmt.Sprintf(errMaxChunksPerQueryLimit, fmt.Sprintf("{__name__=%q}", metricName), 1),
},
"max chunks per query limit hit while fetching chunks during subsequent attempts": {
finderResult: []*BlockMeta{
{Meta: metadata.Meta{BlockMeta: tsdb.BlockMeta{ULID: block1}}},
{Meta: metadata.Meta{BlockMeta: tsdb.BlockMeta{ULID: block2}}},
{Meta: metadata.Meta{BlockMeta: tsdb.BlockMeta{ULID: block3}}},
{Meta: metadata.Meta{BlockMeta: tsdb.BlockMeta{ULID: block4}}},
},
storeSetResponses: []interface{}{
// First attempt returns a client whose response does not include all expected blocks.
map[BlocksStoreClient][]ulid.ULID{
&storeGatewayClientMock{remoteAddr: "1.1.1.1", mockedResponses: []*storepb.SeriesResponse{
mockSeriesResponse(labels.Labels{metricNameLabel, series1Label}, minT, 1),
mockHintsResponse(block1),
}}: {block1, block3},
&storeGatewayClientMock{remoteAddr: "2.2.2.2", mockedResponses: []*storepb.SeriesResponse{
mockSeriesResponse(labels.Labels{metricNameLabel, series2Label}, minT, 2),
mockHintsResponse(block2),
}}: {block2, block4},
},
// Second attempt returns 1 missing block.
map[BlocksStoreClient][]ulid.ULID{
&storeGatewayClientMock{remoteAddr: "3.3.3.3", mockedResponses: []*storepb.SeriesResponse{
mockSeriesResponse(labels.Labels{metricNameLabel, series1Label}, minT+1, 2),
mockHintsResponse(block3),
}}: {block3, block4},
},
// Third attempt returns the last missing block.
map[BlocksStoreClient][]ulid.ULID{
&storeGatewayClientMock{remoteAddr: "4.4.4.4", mockedResponses: []*storepb.SeriesResponse{
mockSeriesResponse(labels.Labels{metricNameLabel, series2Label}, minT+1, 3),
mockHintsResponse(block4),
}}: {block4},
},
},
limits: &blocksStoreLimitsMock{maxChunksPerQuery: 3},
expectedErr: fmt.Sprintf(errMaxChunksPerQueryLimit, fmt.Sprintf("{__name__=%q}", metricName), 3),
},
}
for testName, testData := range tests {
t.Run(testName, func(t *testing.T) {
ctx := context.Background()
reg := prometheus.NewPedanticRegistry()
stores := &blocksStoreSetMock{mockedResponses: testData.storeSetResponses}
finder := &blocksFinderMock{}
finder.On("GetBlocks", "user-1", minT, maxT).Return(testData.finderResult, map[ulid.ULID]*metadata.DeletionMark(nil), testData.finderErr)
q := &blocksStoreQuerier{
ctx: ctx,
minT: minT,
maxT: maxT,
userID: "user-1",
finder: finder,
stores: stores,
consistency: NewBlocksConsistencyChecker(0, 0, log.NewNopLogger(), nil),
logger: log.NewNopLogger(),
metrics: newBlocksStoreQueryableMetrics(reg),
limits: testData.limits,
}
matchers := []*labels.Matcher{
labels.MustNewMatcher(labels.MatchEqual, labels.MetricName, metricName),
}
set := q.Select(true, nil, matchers...)
if testData.expectedErr != "" {
assert.EqualError(t, set.Err(), testData.expectedErr)
assert.False(t, set.Next())
assert.Nil(t, set.Warnings())
return
}
require.NoError(t, set.Err())
assert.Len(t, set.Warnings(), 0)
// Read all returned series and their values.
var actualSeries []seriesResult
for set.Next() {
var actualValues []valueResult
it := set.At().Iterator()
for it.Next() {
t, v := it.At()
actualValues = append(actualValues, valueResult{
t: t,
v: v,
})
}
require.NoError(t, it.Err())
actualSeries = append(actualSeries, seriesResult{
lbls: set.At().Labels(),
values: actualValues,
})
}
require.NoError(t, set.Err())
assert.Equal(t, testData.expectedSeries, actualSeries)
// Assert on metrics (optional, only for test cases defining it).
if testData.expectedMetrics != "" {
assert.NoError(t, testutil.GatherAndCompare(reg, strings.NewReader(testData.expectedMetrics)))
}
})
}
}
func TestBlocksStoreQuerier_SelectSortedShouldHonorQueryStoreAfter(t *testing.T) {
now := time.Now()
tests := map[string]struct {
queryStoreAfter time.Duration
queryMinT int64
queryMaxT int64
expectedMinT int64
expectedMaxT int64
}{
"should not manipulate query time range if queryStoreAfter is disabled": {
queryStoreAfter: 0,
queryMinT: util.TimeToMillis(now.Add(-100 * time.Minute)),
queryMaxT: util.TimeToMillis(now.Add(-30 * time.Minute)),
expectedMinT: util.TimeToMillis(now.Add(-100 * time.Minute)),
expectedMaxT: util.TimeToMillis(now.Add(-30 * time.Minute)),
},
"should not manipulate query time range if queryStoreAfter is enabled but query max time is older": {
queryStoreAfter: time.Hour,
queryMinT: util.TimeToMillis(now.Add(-100 * time.Minute)),
queryMaxT: util.TimeToMillis(now.Add(-70 * time.Minute)),
expectedMinT: util.TimeToMillis(now.Add(-100 * time.Minute)),
expectedMaxT: util.TimeToMillis(now.Add(-70 * time.Minute)),
},
"should manipulate query time range if queryStoreAfter is enabled and query max time is recent": {
queryStoreAfter: time.Hour,
queryMinT: util.TimeToMillis(now.Add(-100 * time.Minute)),
queryMaxT: util.TimeToMillis(now.Add(-30 * time.Minute)),
expectedMinT: util.TimeToMillis(now.Add(-100 * time.Minute)),
expectedMaxT: util.TimeToMillis(now.Add(-60 * time.Minute)),
},
"should skip the query if the query min time is more recent than queryStoreAfter": {
queryStoreAfter: time.Hour,
queryMinT: util.TimeToMillis(now.Add(-50 * time.Minute)),
queryMaxT: util.TimeToMillis(now.Add(-20 * time.Minute)),
expectedMinT: 0,
expectedMaxT: 0,
},
}
for testName, testData := range tests {
t.Run(testName, func(t *testing.T) {
finder := &blocksFinderMock{}
finder.On("GetBlocks", "user-1", mock.Anything, mock.Anything).Return([]*BlockMeta(nil), map[ulid.ULID]*metadata.DeletionMark(nil), error(nil))
q := &blocksStoreQuerier{
ctx: context.Background(),
minT: testData.queryMinT,
maxT: testData.queryMaxT,
userID: "user-1",
finder: finder,
stores: &blocksStoreSetMock{},
consistency: NewBlocksConsistencyChecker(0, 0, log.NewNopLogger(), nil),
logger: log.NewNopLogger(),
metrics: newBlocksStoreQueryableMetrics(nil),
limits: &blocksStoreLimitsMock{},
queryStoreAfter: testData.queryStoreAfter,
}
sp := &storage.SelectHints{
Start: testData.queryMinT,
End: testData.queryMaxT,
}
set := q.selectSorted(sp)
require.NoError(t, set.Err())
if testData.expectedMinT == 0 && testData.expectedMaxT == 0 {
assert.Len(t, finder.Calls, 0)
} else {
require.Len(t, finder.Calls, 1)
assert.Equal(t, testData.expectedMinT, finder.Calls[0].Arguments.Get(1))
assert.InDelta(t, testData.expectedMaxT, finder.Calls[0].Arguments.Get(2), float64(5*time.Second.Milliseconds()))
}
})
}
}
func TestBlocksStoreQuerier_PromQLExecution(t *testing.T) {
block1 := ulid.MustNew(1, nil)
block2 := ulid.MustNew(2, nil)
series1 := []labelpb.ZLabel{{Name: "__name__", Value: "metric_1"}}
series2 := []labelpb.ZLabel{{Name: "__name__", Value: "metric_2"}}
series1Samples := []promql.Point{
{T: 1589759955000, V: 1},
{T: 1589759970000, V: 1},
{T: 1589759985000, V: 1},
{T: 1589760000000, V: 1},
{T: 1589760015000, V: 1},
{T: 1589760030000, V: 1},
}
series2Samples := []promql.Point{
{T: 1589759955000, V: 2},
{T: 1589759970000, V: 2},
{T: 1589759985000, V: 2},
{T: 1589760000000, V: 2},
{T: 1589760015000, V: 2},
{T: 1589760030000, V: 2},
}
// Mock the finder to simulate we need to query two blocks.
finder := &blocksFinderMock{
Service: services.NewIdleService(nil, nil),
}
finder.On("GetBlocks", "user-1", mock.Anything, mock.Anything).Return([]*BlockMeta{
{Meta: metadata.Meta{BlockMeta: tsdb.BlockMeta{ULID: block1}}},
{Meta: metadata.Meta{BlockMeta: tsdb.BlockMeta{ULID: block2}}},
}, map[ulid.ULID]*metadata.DeletionMark(nil), error(nil))
// Mock the store to simulate each block is queried from a different store-gateway.
gateway1 := &storeGatewayClientMock{remoteAddr: "1.1.1.1", mockedResponses: []*storepb.SeriesResponse{
{
Result: &storepb.SeriesResponse_Series{
Series: &storepb.Series{
Labels: series1,
Chunks: []storepb.AggrChunk{
createAggrChunkWithSamples(series1Samples[:3]...), // First half.
},
},
},
}, {
Result: &storepb.SeriesResponse_Series{
Series: &storepb.Series{
Labels: series2,
Chunks: []storepb.AggrChunk{
createAggrChunkWithSamples(series2Samples[:3]...),
},
},
},
},
mockHintsResponse(block1),
}}
gateway2 := &storeGatewayClientMock{remoteAddr: "2.2.2.2", mockedResponses: []*storepb.SeriesResponse{
{
Result: &storepb.SeriesResponse_Series{
Series: &storepb.Series{
Labels: series1,
Chunks: []storepb.AggrChunk{
createAggrChunkWithSamples(series1Samples[3:]...), // Second half.
},
},
},
}, {
Result: &storepb.SeriesResponse_Series{
Series: &storepb.Series{
Labels: series2,
Chunks: []storepb.AggrChunk{
createAggrChunkWithSamples(series2Samples[3:]...),
},
},
},
},
mockHintsResponse(block2),
}}
stores := &blocksStoreSetMock{
Service: services.NewIdleService(nil, nil),
mockedResponses: []interface{}{
map[BlocksStoreClient][]ulid.ULID{
gateway1: {block1},
gateway2: {block2},
},
},
}
// Instance the querier that will be executed to run the query.
logger := log.NewNopLogger()
queryable, err := NewBlocksStoreQueryable(stores, finder, NewBlocksConsistencyChecker(0, 0, logger, nil), &blocksStoreLimitsMock{}, 0, logger, nil)
require.NoError(t, err)
require.NoError(t, services.StartAndAwaitRunning(context.Background(), queryable))
defer services.StopAndAwaitTerminated(context.Background(), queryable) // nolint:errcheck
engine := promql.NewEngine(promql.EngineOpts{
Logger: logger,
Timeout: 10 * time.Second,
MaxSamples: 1e6,
})
// Run a query.
q, err := engine.NewRangeQuery(queryable, `{__name__=~"metric.*"}`, time.Unix(1589759955, 0), time.Unix(1589760030, 0), 15*time.Second)
require.NoError(t, err)
ctx := user.InjectOrgID(context.Background(), "user-1")
res := q.Exec(ctx)
require.NoError(t, err)
require.NoError(t, res.Err)
matrix, err := res.Matrix()
require.NoError(t, err)
require.Len(t, matrix, 2)
assert.Equal(t, labelpb.ZLabelsToPromLabels(series1), matrix[0].Metric)
assert.Equal(t, labelpb.ZLabelsToPromLabels(series2), matrix[1].Metric)
assert.Equal(t, series1Samples, matrix[0].Points)
assert.Equal(t, series2Samples, matrix[1].Points)
}
type blocksStoreSetMock struct {
services.Service
mockedResponses []interface{}
nextResult int
}
func (m *blocksStoreSetMock) GetClientsFor(_ string, _ []ulid.ULID, _ map[ulid.ULID][]string) (map[BlocksStoreClient][]ulid.ULID, error) {
if m.nextResult >= len(m.mockedResponses) {
panic("not enough mocked results")
}
res := m.mockedResponses[m.nextResult]
m.nextResult++
if err, ok := res.(error); ok {
return nil, err
}
if clients, ok := res.(map[BlocksStoreClient][]ulid.ULID); ok {
return clients, nil
}
return nil, errors.New("unknown data type in the mocked result")
}
type blocksFinderMock struct {
services.Service
mock.Mock
}
func (m *blocksFinderMock) GetBlocks(userID string, minT, maxT int64) ([]*BlockMeta, map[ulid.ULID]*metadata.DeletionMark, error) {
args := m.Called(userID, minT, maxT)
return args.Get(0).([]*BlockMeta), args.Get(1).(map[ulid.ULID]*metadata.DeletionMark), args.Error(2)
}
type storeGatewayClientMock struct {
remoteAddr string
mockedResponses []*storepb.SeriesResponse
}
func (m *storeGatewayClientMock) Series(ctx context.Context, in *storepb.SeriesRequest, opts ...grpc.CallOption) (storegatewaypb.StoreGateway_SeriesClient, error) {
seriesClient := &storeGatewaySeriesClientMock{
mockedResponses: m.mockedResponses,
}
return seriesClient, nil
}
func (m *storeGatewayClientMock) RemoteAddress() string {
return m.remoteAddr
}
type storeGatewaySeriesClientMock struct {
grpc.ClientStream
mockedResponses []*storepb.SeriesResponse
}
func (m *storeGatewaySeriesClientMock) Recv() (*storepb.SeriesResponse, error) {
// Ensure some concurrency occurs.
time.Sleep(10 * time.Millisecond)
if len(m.mockedResponses) == 0 {
return nil, io.EOF
}
res := m.mockedResponses[0]
m.mockedResponses = m.mockedResponses[1:]
return res, nil
}
type blocksStoreLimitsMock struct {
maxChunksPerQuery int
storeGatewayTenantShardSize int
}
func (m *blocksStoreLimitsMock) MaxChunksPerQuery(_ string) int {
return m.maxChunksPerQuery
}
func (m *blocksStoreLimitsMock) StoreGatewayTenantShardSize(userID string) int {
return m.storeGatewayTenantShardSize
}
func mockSeriesResponse(lbls labels.Labels, timeMillis int64, value float64) *storepb.SeriesResponse {
// Generate a chunk containing a single value (for simplicity).
chunk := chunkenc.NewXORChunk()
appender, err := chunk.Appender()
if err != nil {
panic(err)
}
appender.Append(timeMillis, value)
chunkData := chunk.Bytes()
return &storepb.SeriesResponse{
Result: &storepb.SeriesResponse_Series{
Series: &storepb.Series{
Labels: labelpb.ZLabelsFromPromLabels(lbls),
Chunks: []storepb.AggrChunk{
{MinTime: timeMillis, MaxTime: timeMillis, Raw: &storepb.Chunk{Type: storepb.Chunk_XOR, Data: chunkData}},
},
},
},
}
}
func mockHintsResponse(ids ...ulid.ULID) *storepb.SeriesResponse {
hints := &hintspb.SeriesResponseHints{}
for _, id := range ids {
hints.AddQueriedBlock(id)
}
any, err := types.MarshalAny(hints)
if err != nil {
panic(err)
}
return &storepb.SeriesResponse{
Result: &storepb.SeriesResponse_Hints{
Hints: any,
},
}
}