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443 lines
17 KiB
443 lines
17 KiB
// Copyright 2021 The Prometheus Authors |
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// Licensed under the Apache License, Version 2.0 (the "License"); |
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// you may not use this file except in compliance with the License. |
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// You may obtain a copy of the License at |
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// |
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// http://www.apache.org/licenses/LICENSE-2.0 |
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// |
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// Unless required by applicable law or agreed to in writing, software |
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// distributed under the License is distributed on an "AS IS" BASIS, |
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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// See the License for the specific language governing permissions and |
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// limitations under the License. |
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package remote |
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import ( |
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"bytes" |
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"context" |
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"errors" |
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"io" |
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"net/http" |
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"net/http/httptest" |
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"testing" |
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"time" |
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"github.com/gogo/protobuf/proto" |
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"github.com/golang/snappy" |
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"github.com/stretchr/testify/require" |
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"github.com/prometheus/prometheus/config" |
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"github.com/prometheus/prometheus/model/labels" |
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"github.com/prometheus/prometheus/prompb" |
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"github.com/prometheus/prometheus/promql/promqltest" |
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"github.com/prometheus/prometheus/storage" |
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"github.com/prometheus/prometheus/tsdb/tsdbutil" |
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"github.com/prometheus/prometheus/util/teststorage" |
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) |
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func TestSampledReadEndpoint(t *testing.T) { |
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store := promqltest.LoadedStorage(t, ` |
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load 1m |
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test_metric1{foo="bar",baz="qux"} 1 |
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`) |
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defer store.Close() |
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addNativeHistogramsToTestSuite(t, store, 1) |
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h := NewReadHandler(nil, nil, store, func() config.Config { |
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return config.Config{ |
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GlobalConfig: config.GlobalConfig{ |
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// We expect external labels to be added, with the source labels honored. |
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ExternalLabels: labels.FromStrings("b", "c", "baz", "a", "d", "e"), |
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}, |
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} |
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}, 1e6, 1, 0) |
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// Encode the request. |
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matcher1, err := labels.NewMatcher(labels.MatchEqual, "__name__", "test_metric1") |
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require.NoError(t, err) |
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matcher2, err := labels.NewMatcher(labels.MatchEqual, "d", "e") |
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require.NoError(t, err) |
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matcher3, err := labels.NewMatcher(labels.MatchEqual, "__name__", "test_histogram_metric1") |
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require.NoError(t, err) |
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query1, err := ToQuery(0, 1, []*labels.Matcher{matcher1, matcher2}, &storage.SelectHints{Step: 0, Func: "avg"}) |
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require.NoError(t, err) |
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query2, err := ToQuery(0, 1, []*labels.Matcher{matcher3, matcher2}, &storage.SelectHints{Step: 0, Func: "avg"}) |
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require.NoError(t, err) |
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req := &prompb.ReadRequest{Queries: []*prompb.Query{query1, query2}} |
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data, err := proto.Marshal(req) |
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require.NoError(t, err) |
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compressed := snappy.Encode(nil, data) |
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request, err := http.NewRequest(http.MethodPost, "", bytes.NewBuffer(compressed)) |
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require.NoError(t, err) |
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recorder := httptest.NewRecorder() |
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h.ServeHTTP(recorder, request) |
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require.Equal(t, 2, recorder.Code/100) |
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require.Equal(t, "application/x-protobuf", recorder.Result().Header.Get("Content-Type")) |
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require.Equal(t, "snappy", recorder.Result().Header.Get("Content-Encoding")) |
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// Decode the response. |
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compressed, err = io.ReadAll(recorder.Result().Body) |
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require.NoError(t, err) |
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uncompressed, err := snappy.Decode(nil, compressed) |
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require.NoError(t, err) |
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var resp prompb.ReadResponse |
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err = proto.Unmarshal(uncompressed, &resp) |
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require.NoError(t, err) |
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require.Len(t, resp.Results, 2, "Expected 2 results.") |
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require.Equal(t, &prompb.QueryResult{ |
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Timeseries: []*prompb.TimeSeries{ |
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{ |
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Labels: []prompb.Label{ |
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{Name: "__name__", Value: "test_metric1"}, |
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{Name: "b", Value: "c"}, |
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{Name: "baz", Value: "qux"}, |
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{Name: "d", Value: "e"}, |
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{Name: "foo", Value: "bar"}, |
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}, |
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Samples: []prompb.Sample{{Value: 1, Timestamp: 0}}, |
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}, |
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}, |
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}, resp.Results[0]) |
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require.Equal(t, &prompb.QueryResult{ |
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Timeseries: []*prompb.TimeSeries{ |
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{ |
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Labels: []prompb.Label{ |
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{Name: "__name__", Value: "test_histogram_metric1"}, |
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{Name: "b", Value: "c"}, |
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{Name: "baz", Value: "qux"}, |
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{Name: "d", Value: "e"}, |
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}, |
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Histograms: []prompb.Histogram{ |
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prompb.FromFloatHistogram(0, tsdbutil.GenerateTestFloatHistogram(0)), |
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}, |
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}, |
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}, |
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}, resp.Results[1]) |
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} |
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func BenchmarkStreamReadEndpoint(b *testing.B) { |
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store := promqltest.LoadedStorage(b, ` |
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load 1m |
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test_metric1{foo="bar1",baz="qux"} 0+100x119 |
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test_metric1{foo="bar2",baz="qux"} 0+100x120 |
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test_metric1{foo="bar3",baz="qux"} 0+100x240 |
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`) |
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b.Cleanup(func() { store.Close() }) |
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api := NewReadHandler(nil, nil, store, func() config.Config { |
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return config.Config{} |
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}, |
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0, 1, 0, |
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) |
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matcher, err := labels.NewMatcher(labels.MatchEqual, "__name__", "test_metric1") |
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require.NoError(b, err) |
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query, err := ToQuery(0, 14400001, []*labels.Matcher{matcher}, &storage.SelectHints{ |
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Step: 1, |
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Func: "sum", |
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Start: 0, |
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End: 14400001, |
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}) |
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require.NoError(b, err) |
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req := &prompb.ReadRequest{ |
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Queries: []*prompb.Query{query}, |
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AcceptedResponseTypes: []prompb.ReadRequest_ResponseType{prompb.ReadRequest_STREAMED_XOR_CHUNKS}, |
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} |
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data, err := proto.Marshal(req) |
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require.NoError(b, err) |
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b.ResetTimer() |
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b.ReportAllocs() |
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for i := 0; i < b.N; i++ { |
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compressed := snappy.Encode(nil, data) |
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request, err := http.NewRequest(http.MethodPost, "", bytes.NewBuffer(compressed)) |
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require.NoError(b, err) |
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recorder := httptest.NewRecorder() |
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api.ServeHTTP(recorder, request) |
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require.Equal(b, 2, recorder.Code/100) |
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var results []*prompb.ChunkedReadResponse |
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stream := NewChunkedReader(recorder.Result().Body, config.DefaultChunkedReadLimit, nil) |
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for { |
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res := &prompb.ChunkedReadResponse{} |
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err := stream.NextProto(res) |
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if errors.Is(err, io.EOF) { |
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break |
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} |
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require.NoError(b, err) |
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results = append(results, res) |
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} |
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require.Len(b, results, 6, "Expected 6 results.") |
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} |
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} |
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func TestStreamReadEndpoint(t *testing.T) { |
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// First with 120 float samples. We expect 1 frame with 1 chunk. |
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// Second with 121 float samples, We expect 1 frame with 2 chunks. |
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// Third with 241 float samples. We expect 1 frame with 2 chunks, and 1 frame with 1 chunk for the same series due to bytes limit. |
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// Fourth with 25 histogram samples. We expect 1 frame with 1 chunk. |
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store := promqltest.LoadedStorage(t, ` |
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load 1m |
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test_metric1{foo="bar1",baz="qux"} 0+100x119 |
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test_metric1{foo="bar2",baz="qux"} 0+100x120 |
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test_metric1{foo="bar3",baz="qux"} 0+100x240 |
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`) |
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defer store.Close() |
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addNativeHistogramsToTestSuite(t, store, 25) |
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api := NewReadHandler(nil, nil, store, func() config.Config { |
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return config.Config{ |
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GlobalConfig: config.GlobalConfig{ |
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// We expect external labels to be added, with the source labels honored. |
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ExternalLabels: labels.FromStrings("baz", "a", "b", "c", "d", "e"), |
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}, |
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} |
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}, |
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1e6, 1, |
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// Labelset has 57 bytes. Full chunk in test data has roughly 240 bytes. This allows us to have at max 2 chunks in this test. |
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57+480, |
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) |
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// Encode the request. |
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matcher1, err := labels.NewMatcher(labels.MatchEqual, "__name__", "test_metric1") |
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require.NoError(t, err) |
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matcher2, err := labels.NewMatcher(labels.MatchEqual, "d", "e") |
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require.NoError(t, err) |
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matcher3, err := labels.NewMatcher(labels.MatchEqual, "foo", "bar1") |
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require.NoError(t, err) |
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matcher4, err := labels.NewMatcher(labels.MatchEqual, "__name__", "test_histogram_metric1") |
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require.NoError(t, err) |
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query1, err := ToQuery(0, 14400001, []*labels.Matcher{matcher1, matcher2}, &storage.SelectHints{ |
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Step: 1, |
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Func: "avg", |
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Start: 0, |
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End: 14400001, |
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}) |
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require.NoError(t, err) |
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query2, err := ToQuery(0, 14400001, []*labels.Matcher{matcher1, matcher3}, &storage.SelectHints{ |
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Step: 1, |
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Func: "avg", |
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Start: 0, |
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End: 14400001, |
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}) |
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require.NoError(t, err) |
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query3, err := ToQuery(0, 14400001, []*labels.Matcher{matcher4}, &storage.SelectHints{ |
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Step: 1, |
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Func: "avg", |
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Start: 0, |
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End: 14400001, |
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}) |
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require.NoError(t, err) |
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req := &prompb.ReadRequest{ |
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Queries: []*prompb.Query{query1, query2, query3}, |
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AcceptedResponseTypes: []prompb.ReadRequest_ResponseType{prompb.ReadRequest_STREAMED_XOR_CHUNKS}, |
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} |
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data, err := proto.Marshal(req) |
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require.NoError(t, err) |
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compressed := snappy.Encode(nil, data) |
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request, err := http.NewRequest(http.MethodPost, "", bytes.NewBuffer(compressed)) |
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require.NoError(t, err) |
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recorder := httptest.NewRecorder() |
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api.ServeHTTP(recorder, request) |
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require.Equal(t, 2, recorder.Code/100) |
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require.Equal(t, "application/x-streamed-protobuf; proto=prometheus.ChunkedReadResponse", recorder.Result().Header.Get("Content-Type")) |
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require.Equal(t, "", recorder.Result().Header.Get("Content-Encoding")) |
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var results []*prompb.ChunkedReadResponse |
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stream := NewChunkedReader(recorder.Result().Body, config.DefaultChunkedReadLimit, nil) |
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for { |
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res := &prompb.ChunkedReadResponse{} |
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err := stream.NextProto(res) |
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if errors.Is(err, io.EOF) { |
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break |
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} |
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require.NoError(t, err) |
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results = append(results, res) |
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} |
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require.Len(t, results, 6, "Expected 6 results.") |
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require.Equal(t, []*prompb.ChunkedReadResponse{ |
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{ |
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ChunkedSeries: []*prompb.ChunkedSeries{ |
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{ |
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Labels: []prompb.Label{ |
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{Name: "__name__", Value: "test_metric1"}, |
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{Name: "b", Value: "c"}, |
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{Name: "baz", Value: "qux"}, |
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{Name: "d", Value: "e"}, |
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{Name: "foo", Value: "bar1"}, |
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}, |
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Chunks: []prompb.Chunk{ |
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{ |
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Type: prompb.Chunk_XOR, |
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MaxTimeMs: 7140000, |
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Data: []byte("\000x\000\000\000\000\000\000\000\000\000\340\324\003\302|\005\224\000\301\254}\351z2\320O\355\264n[\007\316\224\243md\371\320\375\032Pm\nS\235\016Q\255\006P\275\250\277\312\201Z\003(3\240R\207\332\005(\017\240\322\201\332=(\023\2402\203Z\007(w\2402\201Z\017(\023\265\227\364P\033@\245\007\364\nP\033C\245\002t\036P+@e\036\364\016Pk@e\002t:P;A\245\001\364\nS\373@\245\006t\006P+C\345\002\364\006Pk@\345\036t\nP\033A\245\003\364:P\033@\245\006t\016ZJ\377\\\205\313\210\327\270\017\345+F[\310\347E)\355\024\241\366\342}(v\215(N\203)\326\207(\336\203(V\332W\362\202t4\240m\005(\377AJ\006\320\322\202t\374\240\255\003(oA\312:\3202"), |
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}, |
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}, |
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}, |
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}, |
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}, |
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{ |
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ChunkedSeries: []*prompb.ChunkedSeries{ |
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{ |
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Labels: []prompb.Label{ |
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{Name: "__name__", Value: "test_metric1"}, |
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{Name: "b", Value: "c"}, |
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{Name: "baz", Value: "qux"}, |
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{Name: "d", Value: "e"}, |
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{Name: "foo", Value: "bar2"}, |
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}, |
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Chunks: []prompb.Chunk{ |
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{ |
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Type: prompb.Chunk_XOR, |
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MaxTimeMs: 7140000, |
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Data: []byte("\000x\000\000\000\000\000\000\000\000\000\340\324\003\302|\005\224\000\301\254}\351z2\320O\355\264n[\007\316\224\243md\371\320\375\032Pm\nS\235\016Q\255\006P\275\250\277\312\201Z\003(3\240R\207\332\005(\017\240\322\201\332=(\023\2402\203Z\007(w\2402\201Z\017(\023\265\227\364P\033@\245\007\364\nP\033C\245\002t\036P+@e\036\364\016Pk@e\002t:P;A\245\001\364\nS\373@\245\006t\006P+C\345\002\364\006Pk@\345\036t\nP\033A\245\003\364:P\033@\245\006t\016ZJ\377\\\205\313\210\327\270\017\345+F[\310\347E)\355\024\241\366\342}(v\215(N\203)\326\207(\336\203(V\332W\362\202t4\240m\005(\377AJ\006\320\322\202t\374\240\255\003(oA\312:\3202"), |
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}, |
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{ |
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Type: prompb.Chunk_XOR, |
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MinTimeMs: 7200000, |
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MaxTimeMs: 7200000, |
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Data: []byte("\000\001\200\364\356\006@\307p\000\000\000\000\000"), |
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}, |
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}, |
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}, |
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}, |
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}, |
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{ |
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ChunkedSeries: []*prompb.ChunkedSeries{ |
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{ |
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Labels: []prompb.Label{ |
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{Name: "__name__", Value: "test_metric1"}, |
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{Name: "b", Value: "c"}, |
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{Name: "baz", Value: "qux"}, |
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{Name: "d", Value: "e"}, |
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{Name: "foo", Value: "bar3"}, |
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}, |
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Chunks: []prompb.Chunk{ |
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{ |
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Type: prompb.Chunk_XOR, |
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MaxTimeMs: 7140000, |
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Data: []byte("\000x\000\000\000\000\000\000\000\000\000\340\324\003\302|\005\224\000\301\254}\351z2\320O\355\264n[\007\316\224\243md\371\320\375\032Pm\nS\235\016Q\255\006P\275\250\277\312\201Z\003(3\240R\207\332\005(\017\240\322\201\332=(\023\2402\203Z\007(w\2402\201Z\017(\023\265\227\364P\033@\245\007\364\nP\033C\245\002t\036P+@e\036\364\016Pk@e\002t:P;A\245\001\364\nS\373@\245\006t\006P+C\345\002\364\006Pk@\345\036t\nP\033A\245\003\364:P\033@\245\006t\016ZJ\377\\\205\313\210\327\270\017\345+F[\310\347E)\355\024\241\366\342}(v\215(N\203)\326\207(\336\203(V\332W\362\202t4\240m\005(\377AJ\006\320\322\202t\374\240\255\003(oA\312:\3202"), |
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}, |
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{ |
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Type: prompb.Chunk_XOR, |
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MinTimeMs: 7200000, |
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MaxTimeMs: 14340000, |
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Data: []byte("\000x\200\364\356\006@\307p\000\000\000\000\000\340\324\003\340>\224\355\260\277\322\200\372\005(=\240R\207:\003(\025\240\362\201z\003(\365\240r\203:\005(\r\241\322\201\372\r(\r\240R\237:\007(5\2402\201z\037(\025\2402\203:\005(\375\240R\200\372\r(\035\241\322\201:\003(5\240r\326g\364\271\213\227!\253q\037\312N\340GJ\033E)\375\024\241\266\362}(N\217(V\203)\336\207(\326\203(N\334W\322\203\2644\240}\005(\373AJ\031\3202\202\264\374\240\275\003(kA\3129\320R\201\2644\240\375\264\277\322\200\332\005(3\240r\207Z\003(\027\240\362\201Z\003(\363\240R\203\332\005(\017\241\322\201\332\r(\023\2402\237Z\007(7\2402\201Z\037(\023\240\322\200\332\005(\377\240R\200\332\r "), |
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}, |
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}, |
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}, |
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}, |
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}, |
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{ |
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ChunkedSeries: []*prompb.ChunkedSeries{ |
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{ |
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Labels: []prompb.Label{ |
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{Name: "__name__", Value: "test_metric1"}, |
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{Name: "b", Value: "c"}, |
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{Name: "baz", Value: "qux"}, |
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{Name: "d", Value: "e"}, |
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{Name: "foo", Value: "bar3"}, |
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}, |
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Chunks: []prompb.Chunk{ |
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{ |
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Type: prompb.Chunk_XOR, |
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MinTimeMs: 14400000, |
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MaxTimeMs: 14400000, |
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Data: []byte("\000\001\200\350\335\r@\327p\000\000\000\000\000"), |
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}, |
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}, |
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}, |
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}, |
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}, |
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{ |
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ChunkedSeries: []*prompb.ChunkedSeries{ |
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{ |
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Labels: []prompb.Label{ |
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{Name: "__name__", Value: "test_metric1"}, |
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{Name: "b", Value: "c"}, |
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{Name: "baz", Value: "qux"}, |
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{Name: "d", Value: "e"}, |
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{Name: "foo", Value: "bar1"}, |
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}, |
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Chunks: []prompb.Chunk{ |
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{ |
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Type: prompb.Chunk_XOR, |
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MaxTimeMs: 7140000, |
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Data: []byte("\000x\000\000\000\000\000\000\000\000\000\340\324\003\302|\005\224\000\301\254}\351z2\320O\355\264n[\007\316\224\243md\371\320\375\032Pm\nS\235\016Q\255\006P\275\250\277\312\201Z\003(3\240R\207\332\005(\017\240\322\201\332=(\023\2402\203Z\007(w\2402\201Z\017(\023\265\227\364P\033@\245\007\364\nP\033C\245\002t\036P+@e\036\364\016Pk@e\002t:P;A\245\001\364\nS\373@\245\006t\006P+C\345\002\364\006Pk@\345\036t\nP\033A\245\003\364:P\033@\245\006t\016ZJ\377\\\205\313\210\327\270\017\345+F[\310\347E)\355\024\241\366\342}(v\215(N\203)\326\207(\336\203(V\332W\362\202t4\240m\005(\377AJ\006\320\322\202t\374\240\255\003(oA\312:\3202"), |
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}, |
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}, |
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}, |
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}, |
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QueryIndex: 1, |
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}, |
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{ |
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ChunkedSeries: []*prompb.ChunkedSeries{ |
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{ |
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Labels: []prompb.Label{ |
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{Name: "__name__", Value: "test_histogram_metric1"}, |
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{Name: "b", Value: "c"}, |
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{Name: "baz", Value: "qux"}, |
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{Name: "d", Value: "e"}, |
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}, |
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Chunks: []prompb.Chunk{ |
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{ |
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Type: prompb.Chunk_FLOAT_HISTOGRAM, |
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MaxTimeMs: 1440000, |
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|
}, |
|
}, |
|
}, |
|
}, |
|
QueryIndex: 2, |
|
}, |
|
}, results) |
|
} |
|
|
|
func addNativeHistogramsToTestSuite(t *testing.T, storage *teststorage.TestStorage, n int) { |
|
lbls := labels.FromStrings("__name__", "test_histogram_metric1", "baz", "qux") |
|
|
|
app := storage.Appender(context.TODO()) |
|
for i, fh := range tsdbutil.GenerateTestFloatHistograms(n) { |
|
_, err := app.AppendHistogram(0, lbls, int64(i)*int64(60*time.Second/time.Millisecond), nil, fh) |
|
require.NoError(t, err) |
|
} |
|
require.NoError(t, app.Commit()) |
|
}
|
|
|