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querier_test.go
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package querier
import (
"context"
"errors"
"io"
"net/http"
"strconv"
"testing"
"time"
"github.com/go-kit/log"
"github.com/grafana/dskit/flagext"
"github.com/grafana/dskit/httpgrpc"
"github.com/grafana/dskit/ring"
ring_client "github.com/grafana/dskit/ring/client"
"github.com/grafana/dskit/user"
"github.com/prometheus/common/model"
"github.com/prometheus/prometheus/promql/parser"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/mock"
"github.com/stretchr/testify/require"
util_log "github.com/grafana/loki/v3/pkg/util/log"
"github.com/grafana/loki/pkg/push"
"github.com/grafana/loki/v3/pkg/compactor/deletion"
"github.com/grafana/loki/v3/pkg/ingester/client"
"github.com/grafana/loki/v3/pkg/logproto"
"github.com/grafana/loki/v3/pkg/logql"
"github.com/grafana/loki/v3/pkg/logql/syntax"
"github.com/grafana/loki/v3/pkg/logqlmodel"
"github.com/grafana/loki/v3/pkg/querier/plan"
"github.com/grafana/loki/v3/pkg/storage"
"github.com/grafana/loki/v3/pkg/util/constants"
"github.com/grafana/loki/v3/pkg/validation"
)
const (
// Custom query timeout used in tests
queryTimeout = 12 * time.Second
)
func TestQuerier_Label_QueryTimeoutConfigFlag(t *testing.T) {
startTime := time.Now().Add(-1 * time.Minute)
endTime := time.Now()
request := logproto.LabelRequest{
Name: "test",
Values: true,
Start: &startTime,
End: &endTime,
}
ingesterClient := newQuerierClientMock()
ingesterClient.On("Label", mock.Anything, &request, mock.Anything).Return(mockLabelResponse([]string{}), nil)
store := newStoreMock()
store.On("LabelValuesForMetricName", mock.Anything, "test", model.TimeFromUnixNano(startTime.UnixNano()), model.TimeFromUnixNano(endTime.UnixNano()), "logs", "test").Return([]string{"foo", "bar"}, nil)
limitsCfg := defaultLimitsTestConfig()
limitsCfg.QueryTimeout = model.Duration(queryTimeout)
limits, err := validation.NewOverrides(limitsCfg, nil)
require.NoError(t, err)
q, err := newQuerier(
mockQuerierConfig(),
mockIngesterClientConfig(),
newIngesterClientMockFactory(ingesterClient),
mockReadRingWithOneActiveIngester(),
&mockDeleteGettter{},
store, limits)
require.NoError(t, err)
ctx := user.InjectOrgID(context.Background(), "test")
_, err = q.Label(ctx, &request)
require.NoError(t, err)
calls := ingesterClient.GetMockedCallsByMethod("Label")
assert.Equal(t, 1, len(calls))
deadline, ok := calls[0].Arguments.Get(0).(context.Context).Deadline()
assert.True(t, ok)
assert.WithinDuration(t, deadline, time.Now().Add(queryTimeout), 1*time.Second)
calls = store.GetMockedCallsByMethod("LabelValuesForMetricName")
assert.Equal(t, 1, len(calls))
deadline, ok = calls[0].Arguments.Get(0).(context.Context).Deadline()
assert.True(t, ok)
assert.WithinDuration(t, deadline, time.Now().Add(queryTimeout), 1*time.Second)
store.AssertExpectations(t)
}
func TestQuerier_Tail_QueryTimeoutConfigFlag(t *testing.T) {
request := logproto.TailRequest{
Query: `{type="test"}`,
DelayFor: 0,
Limit: 10,
Start: time.Now(),
Plan: &plan.QueryPlan{
AST: syntax.MustParseExpr(`{type="test"}`),
},
}
store := newStoreMock()
store.On("SelectLogs", mock.Anything, mock.Anything).Return(mockStreamIterator(1, 2), nil)
queryClient := newQueryClientMock()
queryClient.On("Recv").Return(mockQueryResponse([]logproto.Stream{mockStream(1, 2)}), nil)
tailClient := newTailClientMock()
tailClient.On("Recv").Return(mockTailResponse(mockStream(1, 2)), nil)
ingesterClient := newQuerierClientMock()
ingesterClient.On("Query", mock.Anything, mock.Anything, mock.Anything).Return(queryClient, nil)
ingesterClient.On("Tail", mock.Anything, &request, mock.Anything).Return(tailClient, nil)
ingesterClient.On("TailersCount", mock.Anything, mock.Anything, mock.Anything).Return(&logproto.TailersCountResponse{}, nil)
limitsCfg := defaultLimitsTestConfig()
limitsCfg.QueryTimeout = model.Duration(queryTimeout)
limits, err := validation.NewOverrides(limitsCfg, nil)
require.NoError(t, err)
q, err := newQuerier(
mockQuerierConfig(),
mockIngesterClientConfig(),
newIngesterClientMockFactory(ingesterClient),
mockReadRingWithOneActiveIngester(),
&mockDeleteGettter{},
store, limits)
require.NoError(t, err)
ctx := user.InjectOrgID(context.Background(), "test")
_, err = q.Tail(ctx, &request, false)
require.NoError(t, err)
calls := ingesterClient.GetMockedCallsByMethod("Query")
assert.Equal(t, 1, len(calls))
deadline, ok := calls[0].Arguments.Get(0).(context.Context).Deadline()
assert.True(t, ok)
assert.WithinDuration(t, deadline, time.Now().Add(queryTimeout), 1*time.Second)
calls = ingesterClient.GetMockedCallsByMethod("Tail")
assert.Equal(t, 1, len(calls))
_, ok = calls[0].Arguments.Get(0).(context.Context).Deadline()
assert.False(t, ok)
calls = store.GetMockedCallsByMethod("SelectLogs")
assert.Equal(t, 1, len(calls))
deadline, ok = calls[0].Arguments.Get(0).(context.Context).Deadline()
assert.True(t, ok)
assert.WithinDuration(t, deadline, time.Now().Add(queryTimeout), 1*time.Second)
store.AssertExpectations(t)
}
func mockQuerierConfig() Config {
return Config{
TailMaxDuration: 1 * time.Minute,
}
}
func mockQueryResponse(streams []logproto.Stream) *logproto.QueryResponse {
return &logproto.QueryResponse{
Streams: streams,
}
}
func mockLabelResponse(values []string) *logproto.LabelResponse {
return &logproto.LabelResponse{
Values: values,
}
}
func defaultLimitsTestConfig() validation.Limits {
limits := validation.Limits{}
flagext.DefaultValues(&limits)
return limits
}
func TestQuerier_validateQueryRequest(t *testing.T) {
request := logproto.QueryRequest{
Selector: `{type="test", fail="yes"} |= "foo"`,
Limit: 10,
Start: time.Now().Add(-1 * time.Minute),
End: time.Now(),
Direction: logproto.FORWARD,
Plan: &plan.QueryPlan{
AST: syntax.MustParseExpr(`{type="test", fail="yes"} |= "foo"`),
},
}
store := newStoreMock()
store.On("SelectLogs", mock.Anything, mock.Anything).Return(mockStreamIterator(1, 2), nil)
queryClient := newQueryClientMock()
queryClient.On("Recv").Return(mockQueryResponse([]logproto.Stream{mockStream(1, 2)}), nil)
ingesterClient := newQuerierClientMock()
ingesterClient.On("Query", mock.Anything, &request, mock.Anything).Return(queryClient, nil)
defaultLimits := defaultLimitsTestConfig()
defaultLimits.MaxStreamsMatchersPerQuery = 1
defaultLimits.MaxQueryLength = model.Duration(2 * time.Minute)
limits, err := validation.NewOverrides(defaultLimits, nil)
require.NoError(t, err)
q, err := newQuerier(
mockQuerierConfig(),
mockIngesterClientConfig(),
newIngesterClientMockFactory(ingesterClient),
mockReadRingWithOneActiveIngester(),
&mockDeleteGettter{},
store, limits)
require.NoError(t, err)
ctx := user.InjectOrgID(context.Background(), "test")
_, err = q.SelectLogs(ctx, logql.SelectLogParams{QueryRequest: &request})
require.Equal(t, httpgrpc.Errorf(http.StatusBadRequest, "max streams matchers per query exceeded, matchers-count > limit (2 > 1)"), err)
request.Selector = `{type="test"}`
request.Plan = &plan.QueryPlan{
AST: syntax.MustParseExpr(`{type="test"}`),
}
_, err = q.SelectLogs(ctx, logql.SelectLogParams{QueryRequest: &request})
require.NoError(t, err)
request.Start = request.End.Add(-3*time.Minute - 2*time.Second)
_, err = q.SelectLogs(ctx, logql.SelectLogParams{QueryRequest: &request})
require.Equal(t, httpgrpc.Errorf(http.StatusBadRequest, "the query time range exceeds the limit (query length: 3m2s, limit: 2m)"), err)
}
func TestQuerier_SeriesAPI(t *testing.T) {
mkReq := func(groups []string) *logproto.SeriesRequest {
return &logproto.SeriesRequest{
Start: time.Unix(0, 0),
End: time.Unix(10, 0),
Groups: groups,
}
}
mockSeriesResponse := func(series []map[string]string) *logproto.SeriesResponse {
resp := &logproto.SeriesResponse{}
for _, s := range series {
resp.Series = append(resp.Series, logproto.SeriesIdentifierFromMap(s))
}
return resp
}
for _, tc := range []struct {
desc string
req *logproto.SeriesRequest
setup func(*storeMock, *queryClientMock, *querierClientMock, validation.Limits, *logproto.SeriesRequest)
run func(*testing.T, *SingleTenantQuerier, *logproto.SeriesRequest)
}{
{
"ingester error",
mkReq([]string{`{a="1"}`}),
func(store *storeMock, _ *queryClientMock, ingester *querierClientMock, _ validation.Limits, req *logproto.SeriesRequest) {
ingester.On("Series", mock.Anything, req, mock.Anything).Return(nil, errors.New("tst-err"))
store.On("SelectSeries", mock.Anything, mock.Anything).Return(nil, nil)
},
func(t *testing.T, q *SingleTenantQuerier, req *logproto.SeriesRequest) {
ctx := user.InjectOrgID(context.Background(), "test")
_, err := q.Series(ctx, req)
require.Error(t, err)
},
},
{
"store error",
mkReq([]string{`{a="1"}`}),
func(store *storeMock, _ *queryClientMock, ingester *querierClientMock, _ validation.Limits, req *logproto.SeriesRequest) {
ingester.On("Series", mock.Anything, req, mock.Anything).Return(mockSeriesResponse([]map[string]string{
{"a": "1"},
}), nil)
store.On("SelectSeries", mock.Anything, mock.Anything).Return(nil, context.DeadlineExceeded)
},
func(t *testing.T, q *SingleTenantQuerier, req *logproto.SeriesRequest) {
ctx := user.InjectOrgID(context.Background(), "test")
_, err := q.Series(ctx, req)
require.Error(t, err)
},
},
{
"no matches",
mkReq([]string{`{a="1"}`}),
func(store *storeMock, _ *queryClientMock, ingester *querierClientMock, _ validation.Limits, req *logproto.SeriesRequest) {
ingester.On("Series", mock.Anything, req, mock.Anything).Return(mockSeriesResponse(nil), nil)
store.On("SelectSeries", mock.Anything, mock.Anything).Return(nil, nil)
},
func(t *testing.T, q *SingleTenantQuerier, req *logproto.SeriesRequest) {
ctx := user.InjectOrgID(context.Background(), "test")
resp, err := q.Series(ctx, req)
require.Nil(t, err)
require.Equal(t, &logproto.SeriesResponse{Series: make([]logproto.SeriesIdentifier, 0)}, resp)
},
},
{
"returns series",
mkReq([]string{`{a="1"}`}),
func(store *storeMock, _ *queryClientMock, ingester *querierClientMock, _ validation.Limits, req *logproto.SeriesRequest) {
ingester.On("Series", mock.Anything, req, mock.Anything).Return(mockSeriesResponse([]map[string]string{
{"a": "1", "b": "2"},
{"a": "1", "b": "3"},
}), nil)
store.On("SelectSeries", mock.Anything, mock.Anything).Return([]logproto.SeriesIdentifier{
{Labels: []logproto.SeriesIdentifier_LabelsEntry{
{Key: "a", Value: "1"},
{Key: "b", Value: "4"},
}},
{Labels: []logproto.SeriesIdentifier_LabelsEntry{
{Key: "a", Value: "1"},
{Key: "b", Value: "5"},
}},
}, nil)
},
func(t *testing.T, q *SingleTenantQuerier, req *logproto.SeriesRequest) {
ctx := user.InjectOrgID(context.Background(), "test")
resp, err := q.Series(ctx, req)
require.Nil(t, err)
require.ElementsMatch(t, []logproto.SeriesIdentifier{
{Labels: []logproto.SeriesIdentifier_LabelsEntry{
{Key: "a", Value: "1"},
{Key: "b", Value: "2"},
}},
{
Labels: []logproto.SeriesIdentifier_LabelsEntry{
{Key: "a", Value: "1"},
{Key: "b", Value: "3"},
},
},
{Labels: []logproto.SeriesIdentifier_LabelsEntry{
{Key: "a", Value: "1"},
{Key: "b", Value: "4"},
}},
{Labels: []logproto.SeriesIdentifier_LabelsEntry{
{Key: "a", Value: "1"},
{Key: "b", Value: "5"},
}},
}, resp.GetSeries())
},
},
{
"dedupes",
mkReq([]string{`{a="1"}`}),
func(store *storeMock, _ *queryClientMock, ingester *querierClientMock, _ validation.Limits, req *logproto.SeriesRequest) {
ingester.On("Series", mock.Anything, req, mock.Anything).Return(mockSeriesResponse([]map[string]string{
{"a": "1", "b": "2"},
}), nil)
store.On("SelectSeries", mock.Anything, mock.Anything).Return([]logproto.SeriesIdentifier{
{Labels: []logproto.SeriesIdentifier_LabelsEntry{
{Key: "a", Value: "1"},
{Key: "b", Value: "2"},
}},
{Labels: []logproto.SeriesIdentifier_LabelsEntry{
{Key: "a", Value: "1"},
{Key: "b", Value: "3"},
}},
}, nil)
},
func(t *testing.T, q *SingleTenantQuerier, req *logproto.SeriesRequest) {
ctx := user.InjectOrgID(context.Background(), "test")
resp, err := q.Series(ctx, req)
require.Nil(t, err)
require.ElementsMatch(t, []logproto.SeriesIdentifier{
{Labels: []logproto.SeriesIdentifier_LabelsEntry{
{Key: "a", Value: "1"},
{Key: "b", Value: "2"},
}},
{Labels: []logproto.SeriesIdentifier_LabelsEntry{
{Key: "a", Value: "1"},
{Key: "b", Value: "3"},
}},
}, resp.GetSeries())
},
},
} {
t.Run(tc.desc, func(t *testing.T) {
store := newStoreMock()
queryClient := newQueryClientMock()
ingesterClient := newQuerierClientMock()
defaultLimits := defaultLimitsTestConfig()
if tc.setup != nil {
tc.setup(store, queryClient, ingesterClient, defaultLimits, tc.req)
}
limits, err := validation.NewOverrides(defaultLimits, nil)
require.NoError(t, err)
q, err := newQuerier(
mockQuerierConfig(),
mockIngesterClientConfig(),
newIngesterClientMockFactory(ingesterClient),
mockReadRingWithOneActiveIngester(),
&mockDeleteGettter{},
store, limits)
require.NoError(t, err)
tc.run(t, q, tc.req)
})
}
}
func TestQuerier_IngesterMaxQueryLookback(t *testing.T) {
limits, err := validation.NewOverrides(defaultLimitsTestConfig(), nil)
require.NoError(t, err)
for _, tc := range []struct {
desc string
lookback time.Duration
end time.Time
skipIngesters bool
}{
{
desc: "0 value always queries ingesters",
lookback: 0,
end: time.Now().Add(time.Hour),
skipIngesters: false,
},
{
desc: "query ingester",
lookback: time.Hour,
end: time.Now(),
skipIngesters: false,
},
{
desc: "skip ingester",
lookback: time.Hour,
end: time.Now().Add(-2 * time.Hour),
skipIngesters: true,
},
} {
t.Run(tc.desc, func(t *testing.T) {
req := logproto.QueryRequest{
Selector: `{app="foo"}`,
Limit: 1000,
Start: tc.end.Add(-6 * time.Hour),
End: tc.end,
Direction: logproto.FORWARD,
Plan: &plan.QueryPlan{
AST: syntax.MustParseExpr(`{app="foo"}`),
},
}
queryClient := newQueryClientMock()
ingesterClient := newQuerierClientMock()
if !tc.skipIngesters {
ingesterClient.On("Query", mock.Anything, mock.Anything, mock.Anything).Return(queryClient, nil)
queryClient.On("Recv").Return(mockQueryResponse([]logproto.Stream{mockStream(1, 1)}), nil).Once()
queryClient.On("Recv").Return(nil, io.EOF).Once()
}
store := newStoreMock()
store.On("SelectLogs", mock.Anything, mock.Anything).Return(mockStreamIterator(0, 1), nil)
conf := mockQuerierConfig()
conf.QueryIngestersWithin = tc.lookback
q, err := newQuerier(
conf,
mockIngesterClientConfig(),
newIngesterClientMockFactory(ingesterClient),
mockReadRingWithOneActiveIngester(),
&mockDeleteGettter{},
store, limits)
require.NoError(t, err)
ctx := user.InjectOrgID(context.Background(), "test")
res, err := q.SelectLogs(ctx, logql.SelectLogParams{QueryRequest: &req})
require.Nil(t, err)
// since streams are loaded lazily, force iterators to exhaust
//nolint:revive
for res.Next() {
}
queryClient.AssertExpectations(t)
ingesterClient.AssertExpectations(t)
store.AssertExpectations(t)
})
}
}
func TestQuerier_concurrentTailLimits(t *testing.T) {
request := logproto.TailRequest{
Query: "{type=\"test\"}",
DelayFor: 0,
Limit: 10,
Start: time.Now(),
Plan: &plan.QueryPlan{
AST: syntax.MustParseExpr("{type=\"test\"}"),
},
}
t.Parallel()
tests := map[string]struct {
ringIngesters []ring.InstanceDesc
expectedError error
tailersCount uint32
}{
"empty ring": {
ringIngesters: []ring.InstanceDesc{},
expectedError: httpgrpc.Errorf(http.StatusInternalServerError, "no active ingester found"),
},
"ring containing one pending ingester": {
ringIngesters: []ring.InstanceDesc{mockInstanceDesc("1.1.1.1", ring.PENDING)},
expectedError: httpgrpc.Errorf(http.StatusInternalServerError, "no active ingester found"),
},
"ring containing one active ingester and 0 active tailers": {
ringIngesters: []ring.InstanceDesc{mockInstanceDesc("1.1.1.1", ring.ACTIVE)},
},
"ring containing one active ingester and 1 active tailer": {
ringIngesters: []ring.InstanceDesc{mockInstanceDesc("1.1.1.1", ring.ACTIVE)},
tailersCount: 1,
},
"ring containing one pending and active ingester with 1 active tailer": {
ringIngesters: []ring.InstanceDesc{mockInstanceDesc("1.1.1.1", ring.PENDING), mockInstanceDesc("2.2.2.2", ring.ACTIVE)},
tailersCount: 1,
},
"ring containing one active ingester and max active tailers": {
ringIngesters: []ring.InstanceDesc{mockInstanceDesc("1.1.1.1", ring.ACTIVE)},
expectedError: httpgrpc.Errorf(http.StatusBadRequest,
"max concurrent tail requests limit exceeded, count > limit (%d > %d)", 6, 5),
tailersCount: 5,
},
}
for testName, testData := range tests {
testData := testData
t.Run(testName, func(t *testing.T) {
// For this test's purpose, whenever a new ingester client needs to
// be created, the factory will always return the same mock instance
store := newStoreMock()
store.On("SelectLogs", mock.Anything, mock.Anything).Return(mockStreamIterator(1, 2), nil)
queryClient := newQueryClientMock()
queryClient.On("Recv").Return(mockQueryResponse([]logproto.Stream{mockStream(1, 2)}), nil)
tailClient := newTailClientMock()
tailClient.On("Recv").Return(mockTailResponse(mockStream(1, 2)), nil)
ingesterClient := newQuerierClientMock()
ingesterClient.On("Query", mock.Anything, mock.Anything, mock.Anything).Return(queryClient, nil)
ingesterClient.On("Tail", mock.Anything, &request, mock.Anything).Return(tailClient, nil)
ingesterClient.On("TailersCount", mock.Anything, mock.Anything, mock.Anything).Return(&logproto.TailersCountResponse{Count: testData.tailersCount}, nil)
defaultLimits := defaultLimitsTestConfig()
defaultLimits.MaxConcurrentTailRequests = 5
limits, err := validation.NewOverrides(defaultLimits, nil)
require.NoError(t, err)
q, err := newQuerier(
mockQuerierConfig(),
mockIngesterClientConfig(),
newIngesterClientMockFactory(ingesterClient),
newReadRingMock(testData.ringIngesters, 0),
&mockDeleteGettter{},
store, limits)
require.NoError(t, err)
ctx := user.InjectOrgID(context.Background(), "test")
_, err = q.Tail(ctx, &request, false)
assert.Equal(t, testData.expectedError, err)
})
}
}
func TestQuerier_buildQueryIntervals(t *testing.T) {
// For simplicity it is always assumed that ingesterQueryStoreMaxLookback and queryIngestersWithin both would be set upto 11 hours so
// overlappingQuery has range of last 11 hours while nonOverlappingQuery has range older than last 11 hours.
// We would test the cases below with both the queries.
overlappingQuery := interval{
start: time.Now().Add(-6 * time.Hour),
end: time.Now(),
}
nonOverlappingQuery := interval{
start: time.Now().Add(-24 * time.Hour),
end: time.Now().Add(-12 * time.Hour),
}
type response struct {
ingesterQueryInterval *interval
storeQueryInterval *interval
}
compareResponse := func(t *testing.T, expectedResponse, actualResponse response) {
if expectedResponse.ingesterQueryInterval == nil {
require.Nil(t, actualResponse.ingesterQueryInterval)
} else {
require.InDelta(t, expectedResponse.ingesterQueryInterval.start.Unix(), actualResponse.ingesterQueryInterval.start.Unix(), 1)
require.InDelta(t, expectedResponse.ingesterQueryInterval.end.Unix(), actualResponse.ingesterQueryInterval.end.Unix(), 1)
}
if expectedResponse.storeQueryInterval == nil {
require.Nil(t, actualResponse.storeQueryInterval)
} else {
require.InDelta(t, expectedResponse.storeQueryInterval.start.Unix(), actualResponse.storeQueryInterval.start.Unix(), 1)
require.InDelta(t, expectedResponse.storeQueryInterval.end.Unix(), actualResponse.storeQueryInterval.end.Unix(), 1)
}
}
for _, tc := range []struct {
name string
ingesterQueryStoreMaxLookback time.Duration
queryIngestersWithin time.Duration
overlappingQueryExpectedResponse response
nonOverlappingQueryExpectedResponse response
}{
{
name: "default values, query ingesters and store for whole duration",
overlappingQueryExpectedResponse: response{ // query both store and ingesters
ingesterQueryInterval: &overlappingQuery,
storeQueryInterval: &overlappingQuery,
},
nonOverlappingQueryExpectedResponse: response{ // query both store and ingesters
ingesterQueryInterval: &nonOverlappingQuery,
storeQueryInterval: &nonOverlappingQuery,
},
},
{
name: "ingesterQueryStoreMaxLookback set to 1h",
ingesterQueryStoreMaxLookback: time.Hour,
overlappingQueryExpectedResponse: response{ // query ingesters for last 1h and store until last 1h.
ingesterQueryInterval: &interval{
start: time.Now().Add(-time.Hour),
end: overlappingQuery.end,
},
storeQueryInterval: &interval{
start: overlappingQuery.start,
end: time.Now().Add(-time.Hour),
},
},
nonOverlappingQueryExpectedResponse: response{ // query just the store
storeQueryInterval: &nonOverlappingQuery,
},
},
{
name: "ingesterQueryStoreMaxLookback set to 10h",
ingesterQueryStoreMaxLookback: 10 * time.Hour,
overlappingQueryExpectedResponse: response{ // query just the ingesters.
ingesterQueryInterval: &overlappingQuery,
},
nonOverlappingQueryExpectedResponse: response{ // query just the store
storeQueryInterval: &nonOverlappingQuery,
},
},
{
name: "ingesterQueryStoreMaxLookback set to 1h and queryIngestersWithin set to 2h, ingesterQueryStoreMaxLookback takes precedence",
ingesterQueryStoreMaxLookback: time.Hour,
queryIngestersWithin: 2 * time.Hour,
overlappingQueryExpectedResponse: response{ // query ingesters for last 1h and store until last 1h.
ingesterQueryInterval: &interval{
start: time.Now().Add(-time.Hour),
end: overlappingQuery.end,
},
storeQueryInterval: &interval{
start: overlappingQuery.start,
end: time.Now().Add(-time.Hour),
},
},
nonOverlappingQueryExpectedResponse: response{ // query just the store
storeQueryInterval: &nonOverlappingQuery,
},
},
{
name: "ingesterQueryStoreMaxLookback set to 2h and queryIngestersWithin set to 1h, ingesterQueryStoreMaxLookback takes precedence",
ingesterQueryStoreMaxLookback: 2 * time.Hour,
queryIngestersWithin: time.Hour,
overlappingQueryExpectedResponse: response{ // query ingesters for last 2h and store until last 2h.
ingesterQueryInterval: &interval{
start: time.Now().Add(-2 * time.Hour),
end: overlappingQuery.end,
},
storeQueryInterval: &interval{
start: overlappingQuery.start,
end: time.Now().Add(-2 * time.Hour),
},
},
nonOverlappingQueryExpectedResponse: response{ // query just the store
storeQueryInterval: &nonOverlappingQuery,
},
},
{
name: "ingesterQueryStoreMaxLookback set to -1, query just ingesters",
ingesterQueryStoreMaxLookback: -1,
overlappingQueryExpectedResponse: response{
ingesterQueryInterval: &overlappingQuery,
},
nonOverlappingQueryExpectedResponse: response{
ingesterQueryInterval: &nonOverlappingQuery,
},
},
{
name: "queryIngestersWithin set to 1h",
queryIngestersWithin: time.Hour,
overlappingQueryExpectedResponse: response{ // query both store and ingesters since query overlaps queryIngestersWithin
ingesterQueryInterval: &overlappingQuery,
storeQueryInterval: &overlappingQuery,
},
nonOverlappingQueryExpectedResponse: response{ // query just the store since query doesn't overlap queryIngestersWithin
storeQueryInterval: &nonOverlappingQuery,
},
},
{
name: "queryIngestersWithin set to 10h",
queryIngestersWithin: 10 * time.Hour,
overlappingQueryExpectedResponse: response{ // query both store and ingesters since query overlaps queryIngestersWithin
ingesterQueryInterval: &overlappingQuery,
storeQueryInterval: &overlappingQuery,
},
nonOverlappingQueryExpectedResponse: response{ // query just the store since query doesn't overlap queryIngestersWithin
storeQueryInterval: &nonOverlappingQuery,
},
},
} {
t.Run(tc.name, func(t *testing.T) {
querier := SingleTenantQuerier{cfg: Config{
IngesterQueryStoreMaxLookback: tc.ingesterQueryStoreMaxLookback,
QueryIngestersWithin: tc.queryIngestersWithin,
}}
ingesterQueryInterval, storeQueryInterval := querier.buildQueryIntervals(overlappingQuery.start, overlappingQuery.end)
compareResponse(t, tc.overlappingQueryExpectedResponse, response{
ingesterQueryInterval: ingesterQueryInterval,
storeQueryInterval: storeQueryInterval,
})
ingesterQueryInterval, storeQueryInterval = querier.buildQueryIntervals(nonOverlappingQuery.start, nonOverlappingQuery.end)
compareResponse(t, tc.nonOverlappingQueryExpectedResponse, response{
ingesterQueryInterval: ingesterQueryInterval,
storeQueryInterval: storeQueryInterval,
})
})
}
}
func TestQuerier_calculateIngesterMaxLookbackPeriod(t *testing.T) {
for _, tc := range []struct {
name string
ingesterQueryStoreMaxLookback time.Duration
queryIngestersWithin time.Duration
expected time.Duration
}{
{
name: "defaults are set; infinite lookback period if no values are set",
expected: -1,
},
{
name: "only setting ingesterQueryStoreMaxLookback",
ingesterQueryStoreMaxLookback: time.Hour,
expected: time.Hour,
},
{
name: "setting both ingesterQueryStoreMaxLookback and queryIngestersWithin; ingesterQueryStoreMaxLookback takes precedence",
ingesterQueryStoreMaxLookback: time.Hour,
queryIngestersWithin: time.Minute,
expected: time.Hour,
},
{
name: "only setting queryIngestersWithin",
queryIngestersWithin: time.Minute,
expected: time.Minute,
},
} {
t.Run(tc.name, func(t *testing.T) {
querier := SingleTenantQuerier{cfg: Config{
IngesterQueryStoreMaxLookback: tc.ingesterQueryStoreMaxLookback,
QueryIngestersWithin: tc.queryIngestersWithin,
}}
assert.Equal(t, tc.expected, querier.calculateIngesterMaxLookbackPeriod())
})
}
}
func TestQuerier_isWithinIngesterMaxLookbackPeriod(t *testing.T) {
overlappingQuery := interval{
start: time.Now().Add(-6 * time.Hour),
end: time.Now(),
}
nonOverlappingQuery := interval{
start: time.Now().Add(-24 * time.Hour),
end: time.Now().Add(-12 * time.Hour),
}
for _, tc := range []struct {
name string
ingesterQueryStoreMaxLookback time.Duration
queryIngestersWithin time.Duration
overlappingWithinRange bool
nonOverlappingWithinRange bool
}{
{
name: "default values, query ingesters and store for whole duration",
overlappingWithinRange: true,
nonOverlappingWithinRange: true,
},
{
name: "ingesterQueryStoreMaxLookback set to 1h",
ingesterQueryStoreMaxLookback: time.Hour,
overlappingWithinRange: true,
nonOverlappingWithinRange: false,
},
{
name: "ingesterQueryStoreMaxLookback set to 10h",
ingesterQueryStoreMaxLookback: 10 * time.Hour,
overlappingWithinRange: true,
nonOverlappingWithinRange: false,
},
{
name: "ingesterQueryStoreMaxLookback set to 1h and queryIngestersWithin set to 16h, ingesterQueryStoreMaxLookback takes precedence",
ingesterQueryStoreMaxLookback: time.Hour,
queryIngestersWithin: 16 * time.Hour, // if used, this would put the nonOverlapping query in range
overlappingWithinRange: true,
nonOverlappingWithinRange: false,
},
{
name: "ingesterQueryStoreMaxLookback set to -1, query just ingesters",
ingesterQueryStoreMaxLookback: -1,
overlappingWithinRange: true,
nonOverlappingWithinRange: true,
},
{
name: "queryIngestersWithin set to 1h",
queryIngestersWithin: time.Hour,
overlappingWithinRange: true,
nonOverlappingWithinRange: false,
},
{
name: "queryIngestersWithin set to 10h",
queryIngestersWithin: 10 * time.Hour,
overlappingWithinRange: true,
nonOverlappingWithinRange: false,
},
} {
t.Run(tc.name, func(t *testing.T) {
querier := SingleTenantQuerier{cfg: Config{
IngesterQueryStoreMaxLookback: tc.ingesterQueryStoreMaxLookback,
QueryIngestersWithin: tc.queryIngestersWithin,
}}
lookbackPeriod := querier.calculateIngesterMaxLookbackPeriod()
assert.Equal(t, tc.overlappingWithinRange, querier.isWithinIngesterMaxLookbackPeriod(lookbackPeriod, overlappingQuery.end))
assert.Equal(t, tc.nonOverlappingWithinRange, querier.isWithinIngesterMaxLookbackPeriod(lookbackPeriod, nonOverlappingQuery.end))
})
}
}
func TestQuerier_RequestingIngesters(t *testing.T) {
ctx := user.InjectOrgID(context.Background(), "test")
requestMapping := map[string]struct {
ingesterMethod string
storeMethod string
}{
"SelectLogs": {
ingesterMethod: "Query",
storeMethod: "SelectLogs",
},
"SelectSamples": {
ingesterMethod: "QuerySample",
storeMethod: "SelectSamples",
},
"LabelValuesForMetricName": {
ingesterMethod: "Label",
storeMethod: "LabelValuesForMetricName",
},
"LabelNamesForMetricName": {
ingesterMethod: "Label",
storeMethod: "LabelNamesForMetricName",
},
"Series": {
ingesterMethod: "Series",
storeMethod: "SelectSeries",
},
}
tests := []struct {
desc string
start, end time.Time
setIngesterQueryStoreMaxLookback bool
expectedCallsStore int
expectedCallsIngesters int
}{
{
desc: "Data in storage and ingesters",
start: time.Now().Add(-time.Hour * 2),
end: time.Now(),
expectedCallsStore: 1,
expectedCallsIngesters: 1,
},
{
desc: "Data in ingesters (IngesterQueryStoreMaxLookback not set)",
start: time.Now().Add(-time.Minute * 15),
end: time.Now(),
expectedCallsStore: 1,
expectedCallsIngesters: 1,
},
{
desc: "Data only in storage",
start: time.Now().Add(-time.Hour * 2),
end: time.Now().Add(-time.Hour * 1),
expectedCallsStore: 1,
expectedCallsIngesters: 0,
},
{
desc: "Data in ingesters (IngesterQueryStoreMaxLookback set)",
start: time.Now().Add(-time.Minute * 15),
end: time.Now(),
setIngesterQueryStoreMaxLookback: true,
expectedCallsStore: 0,
expectedCallsIngesters: 1,
},
}
requests := []struct {
name string
do func(querier *SingleTenantQuerier, start, end time.Time) error
}{
{
name: "SelectLogs",
do: func(querier *SingleTenantQuerier, start, end time.Time) error {
_, err := querier.SelectLogs(ctx, logql.SelectLogParams{
QueryRequest: &logproto.QueryRequest{
Selector: `{type="test", fail="yes"} |= "foo"`,
Limit: 10,
Start: start,
End: end,
Direction: logproto.FORWARD,
Plan: &plan.QueryPlan{
AST: syntax.MustParseExpr(`{type="test", fail="yes"} |= "foo"`),
},
},
})
return err
},
},
{
name: "SelectSamples",
do: func(querier *SingleTenantQuerier, start, end time.Time) error {
_, err := querier.SelectSamples(ctx, logql.SelectSampleParams{
SampleQueryRequest: &logproto.SampleQueryRequest{
Selector: `count_over_time({foo="bar"}[5m])`,
Start: start,
End: end,
Plan: &plan.QueryPlan{
AST: syntax.MustParseExpr(`count_over_time({foo="bar"}[5m])`),
},
},
})
return err
},
},
{
name: "LabelValuesForMetricName",
do: func(querier *SingleTenantQuerier, start, end time.Time) error {
_, err := querier.Label(ctx, &logproto.LabelRequest{
Name: "type",
Values: true,
Start: &start,
End: &end,
})
return err
},
},
{
name: "LabelNamesForMetricName",
do: func(querier *SingleTenantQuerier, start, end time.Time) error {
_, err := querier.Label(ctx, &logproto.LabelRequest{
Values: false,
Start: &start,
End: &end,
})
return err
},
},
{
name: "Series",
do: func(querier *SingleTenantQuerier, start, end time.Time) error {
_, err := querier.Series(ctx, &logproto.SeriesRequest{
Start: start,
End: end,
})
return err
},
},
}