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894 lines
20 KiB
894 lines
20 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 textparse |
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|
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import ( |
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"bytes" |
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"encoding/binary" |
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"errors" |
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"io" |
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"testing" |
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|
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"github.com/gogo/protobuf/proto" |
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"github.com/stretchr/testify/require" |
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|
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"github.com/prometheus/prometheus/model/exemplar" |
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"github.com/prometheus/prometheus/model/histogram" |
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"github.com/prometheus/prometheus/model/labels" |
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dto "github.com/prometheus/prometheus/prompb/io/prometheus/client" |
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) |
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|
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func TestProtobufParse(t *testing.T) { |
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textMetricFamilies := []string{ |
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`name: "go_build_info" |
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help: "Build information about the main Go module." |
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type: GAUGE |
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metric: < |
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label: < |
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name: "checksum" |
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value: "" |
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> |
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label: < |
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name: "path" |
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value: "github.com/prometheus/client_golang" |
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> |
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label: < |
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name: "version" |
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value: "(devel)" |
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> |
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gauge: < |
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value: 1 |
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> |
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> |
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`, |
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`name: "go_memstats_alloc_bytes_total" |
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help: "Total number of bytes allocated, even if freed." |
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type: COUNTER |
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metric: < |
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counter: < |
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value: 1.546544e+06 |
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exemplar: < |
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label: < |
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name: "dummyID" |
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value: "42" |
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> |
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value: 12 |
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timestamp: < |
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seconds: 1625851151 |
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nanos: 233181499 |
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> |
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> |
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> |
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> |
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`, |
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`name: "something_untyped" |
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help: "Just to test the untyped type." |
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type: UNTYPED |
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metric: < |
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untyped: < |
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value: 42 |
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> |
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timestamp_ms: 1234567 |
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> |
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`, |
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`name: "test_histogram" |
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help: "Test histogram with many buckets removed to keep it manageable in size." |
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type: HISTOGRAM |
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metric: < |
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histogram: < |
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sample_count: 175 |
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sample_sum: 0.0008280461746287094 |
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bucket: < |
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cumulative_count: 2 |
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upper_bound: -0.0004899999999999998 |
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> |
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bucket: < |
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cumulative_count: 4 |
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upper_bound: -0.0003899999999999998 |
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exemplar: < |
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label: < |
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name: "dummyID" |
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value: "59727" |
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> |
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value: -0.00039 |
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timestamp: < |
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seconds: 1625851155 |
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nanos: 146848499 |
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> |
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> |
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> |
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bucket: < |
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cumulative_count: 16 |
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upper_bound: -0.0002899999999999998 |
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exemplar: < |
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label: < |
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name: "dummyID" |
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value: "5617" |
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> |
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value: -0.00029 |
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> |
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> |
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schema: 3 |
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zero_threshold: 2.938735877055719e-39 |
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zero_count: 2 |
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negative_span: < |
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offset: -162 |
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length: 1 |
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> |
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negative_span: < |
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offset: 23 |
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length: 4 |
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> |
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negative_delta: 1 |
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negative_delta: 3 |
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negative_delta: -2 |
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negative_delta: -1 |
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negative_delta: 1 |
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positive_span: < |
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offset: -161 |
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length: 1 |
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> |
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positive_span: < |
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offset: 8 |
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length: 3 |
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> |
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positive_delta: 1 |
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positive_delta: 2 |
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positive_delta: -1 |
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positive_delta: -1 |
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> |
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timestamp_ms: 1234568 |
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> |
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`, |
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`name: "test_gauge_histogram" |
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help: "Like test_histogram but as gauge histogram." |
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type: GAUGE_HISTOGRAM |
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metric: < |
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histogram: < |
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sample_count: 175 |
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sample_sum: 0.0008280461746287094 |
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bucket: < |
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cumulative_count: 2 |
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upper_bound: -0.0004899999999999998 |
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> |
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bucket: < |
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cumulative_count: 4 |
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upper_bound: -0.0003899999999999998 |
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exemplar: < |
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label: < |
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name: "dummyID" |
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value: "59727" |
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> |
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value: -0.00039 |
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timestamp: < |
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seconds: 1625851155 |
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nanos: 146848499 |
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> |
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> |
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> |
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bucket: < |
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cumulative_count: 16 |
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upper_bound: -0.0002899999999999998 |
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exemplar: < |
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label: < |
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name: "dummyID" |
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value: "5617" |
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> |
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value: -0.00029 |
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> |
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> |
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schema: 3 |
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zero_threshold: 2.938735877055719e-39 |
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zero_count: 2 |
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negative_span: < |
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offset: -162 |
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length: 1 |
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> |
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negative_span: < |
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offset: 23 |
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length: 4 |
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> |
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negative_delta: 1 |
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negative_delta: 3 |
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negative_delta: -2 |
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negative_delta: -1 |
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negative_delta: 1 |
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positive_span: < |
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offset: -161 |
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length: 1 |
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> |
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positive_span: < |
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offset: 8 |
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length: 3 |
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> |
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positive_delta: 1 |
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positive_delta: 2 |
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positive_delta: -1 |
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positive_delta: -1 |
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> |
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timestamp_ms: 1234568 |
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> |
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`, |
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`name: "test_float_histogram" |
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help: "Test float histogram with many buckets removed to keep it manageable in size." |
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type: HISTOGRAM |
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metric: < |
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histogram: < |
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sample_count: 175 |
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sample_count_float: 175.0 |
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sample_sum: 0.0008280461746287094 |
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bucket: < |
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cumulative_count_float: 2.0 |
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upper_bound: -0.0004899999999999998 |
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> |
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bucket: < |
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cumulative_count_float: 4.0 |
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upper_bound: -0.0003899999999999998 |
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exemplar: < |
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label: < |
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name: "dummyID" |
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value: "59727" |
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> |
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value: -0.00039 |
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timestamp: < |
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seconds: 1625851155 |
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nanos: 146848499 |
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> |
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> |
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> |
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bucket: < |
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cumulative_count_float: 16 |
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upper_bound: -0.0002899999999999998 |
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exemplar: < |
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label: < |
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name: "dummyID" |
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value: "5617" |
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> |
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value: -0.00029 |
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> |
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> |
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schema: 3 |
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zero_threshold: 2.938735877055719e-39 |
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zero_count_float: 2.0 |
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negative_span: < |
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offset: -162 |
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length: 1 |
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> |
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negative_span: < |
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offset: 23 |
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length: 4 |
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> |
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negative_count: 1.0 |
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negative_count: 3.0 |
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negative_count: -2.0 |
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negative_count: -1.0 |
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negative_count: 1.0 |
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positive_span: < |
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offset: -161 |
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length: 1 |
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> |
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positive_span: < |
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offset: 8 |
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length: 3 |
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> |
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positive_count: 1.0 |
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positive_count: 2.0 |
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positive_count: -1.0 |
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positive_count: -1.0 |
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> |
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timestamp_ms: 1234568 |
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> |
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`, |
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`name: "test_gauge_float_histogram" |
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help: "Like test_float_histogram but as gauge histogram." |
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type: GAUGE_HISTOGRAM |
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metric: < |
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histogram: < |
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sample_count: 175 |
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sample_count_float: 175.0 |
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sample_sum: 0.0008280461746287094 |
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bucket: < |
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cumulative_count_float: 2.0 |
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upper_bound: -0.0004899999999999998 |
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> |
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bucket: < |
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cumulative_count_float: 4.0 |
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upper_bound: -0.0003899999999999998 |
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exemplar: < |
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label: < |
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name: "dummyID" |
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value: "59727" |
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> |
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value: -0.00039 |
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timestamp: < |
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seconds: 1625851155 |
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nanos: 146848499 |
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> |
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> |
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> |
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bucket: < |
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cumulative_count_float: 16 |
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upper_bound: -0.0002899999999999998 |
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exemplar: < |
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label: < |
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name: "dummyID" |
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value: "5617" |
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> |
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value: -0.00029 |
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> |
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> |
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schema: 3 |
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zero_threshold: 2.938735877055719e-39 |
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zero_count_float: 2.0 |
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negative_span: < |
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offset: -162 |
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length: 1 |
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> |
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negative_span: < |
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offset: 23 |
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length: 4 |
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> |
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negative_count: 1.0 |
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negative_count: 3.0 |
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negative_count: -2.0 |
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negative_count: -1.0 |
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negative_count: 1.0 |
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positive_span: < |
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offset: -161 |
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length: 1 |
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> |
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positive_span: < |
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offset: 8 |
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length: 3 |
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> |
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positive_count: 1.0 |
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positive_count: 2.0 |
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positive_count: -1.0 |
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positive_count: -1.0 |
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> |
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timestamp_ms: 1234568 |
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> |
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`, |
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`name: "test_histogram2" |
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help: "Similar histogram as before but now without sparse buckets." |
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type: HISTOGRAM |
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metric: < |
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histogram: < |
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sample_count: 175 |
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sample_sum: 0.000828 |
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bucket: < |
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cumulative_count: 2 |
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upper_bound: -0.00048 |
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> |
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bucket: < |
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cumulative_count: 4 |
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upper_bound: -0.00038 |
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exemplar: < |
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label: < |
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name: "dummyID" |
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value: "59727" |
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> |
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value: -0.00038 |
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timestamp: < |
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seconds: 1625851153 |
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nanos: 146848499 |
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> |
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> |
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> |
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bucket: < |
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cumulative_count: 16 |
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upper_bound: 1 |
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exemplar: < |
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label: < |
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name: "dummyID" |
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value: "5617" |
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> |
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value: -0.000295 |
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> |
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> |
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schema: 0 |
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zero_threshold: 0 |
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> |
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> |
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`, |
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`name: "rpc_durations_seconds" |
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help: "RPC latency distributions." |
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type: SUMMARY |
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metric: < |
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label: < |
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name: "service" |
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value: "exponential" |
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> |
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summary: < |
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sample_count: 262 |
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sample_sum: 0.00025551262820703587 |
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quantile: < |
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quantile: 0.5 |
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value: 6.442786329648548e-07 |
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> |
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quantile: < |
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quantile: 0.9 |
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value: 1.9435742936658396e-06 |
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> |
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quantile: < |
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quantile: 0.99 |
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value: 4.0471608667037015e-06 |
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> |
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> |
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> |
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`, |
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`name: "without_quantiles" |
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help: "A summary without quantiles." |
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type: SUMMARY |
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metric: < |
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summary: < |
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sample_count: 42 |
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sample_sum: 1.234 |
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> |
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> |
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`, |
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} |
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varintBuf := make([]byte, binary.MaxVarintLen32) |
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inputBuf := &bytes.Buffer{} |
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for _, tmf := range textMetricFamilies { |
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pb := &dto.MetricFamily{} |
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// From text to proto message. |
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require.NoError(t, proto.UnmarshalText(tmf, pb)) |
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// From proto message to binary protobuf. |
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protoBuf, err := proto.Marshal(pb) |
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require.NoError(t, err) |
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// Write first length, then binary protobuf. |
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varintLength := binary.PutUvarint(varintBuf, uint64(len(protoBuf))) |
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inputBuf.Write(varintBuf[:varintLength]) |
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inputBuf.Write(protoBuf) |
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} |
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exp := []struct { |
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lset labels.Labels |
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m string |
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t int64 |
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v float64 |
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typ MetricType |
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help string |
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unit string |
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comment string |
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shs *histogram.Histogram |
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fhs *histogram.FloatHistogram |
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e []exemplar.Exemplar |
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}{ |
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{ |
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m: "go_build_info", |
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help: "Build information about the main Go module.", |
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}, |
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{ |
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m: "go_build_info", |
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typ: MetricTypeGauge, |
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}, |
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{ |
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m: "go_build_info\xFFchecksum\xFF\xFFpath\xFFgithub.com/prometheus/client_golang\xFFversion\xFF(devel)", |
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v: 1, |
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lset: labels.FromStrings( |
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"__name__", "go_build_info", |
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"checksum", "", |
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"path", "github.com/prometheus/client_golang", |
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"version", "(devel)", |
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), |
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}, |
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{ |
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m: "go_memstats_alloc_bytes_total", |
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help: "Total number of bytes allocated, even if freed.", |
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}, |
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{ |
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m: "go_memstats_alloc_bytes_total", |
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typ: MetricTypeCounter, |
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}, |
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{ |
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m: "go_memstats_alloc_bytes_total", |
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v: 1.546544e+06, |
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lset: labels.FromStrings( |
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"__name__", "go_memstats_alloc_bytes_total", |
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), |
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e: []exemplar.Exemplar{ |
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{Labels: labels.FromStrings("dummyID", "42"), Value: 12, HasTs: true, Ts: 1625851151233}, |
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}, |
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}, |
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{ |
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m: "something_untyped", |
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help: "Just to test the untyped type.", |
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}, |
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{ |
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m: "something_untyped", |
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typ: MetricTypeUnknown, |
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}, |
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{ |
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m: "something_untyped", |
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t: 1234567, |
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v: 42, |
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lset: labels.FromStrings( |
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"__name__", "something_untyped", |
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), |
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}, |
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{ |
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m: "test_histogram", |
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help: "Test histogram with many buckets removed to keep it manageable in size.", |
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}, |
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{ |
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m: "test_histogram", |
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typ: MetricTypeHistogram, |
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}, |
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{ |
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m: "test_histogram", |
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t: 1234568, |
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shs: &histogram.Histogram{ |
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Count: 175, |
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ZeroCount: 2, |
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Sum: 0.0008280461746287094, |
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ZeroThreshold: 2.938735877055719e-39, |
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Schema: 3, |
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PositiveSpans: []histogram.Span{ |
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{Offset: -161, Length: 1}, |
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{Offset: 8, Length: 3}, |
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}, |
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NegativeSpans: []histogram.Span{ |
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{Offset: -162, Length: 1}, |
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{Offset: 23, Length: 4}, |
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}, |
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PositiveBuckets: []int64{1, 2, -1, -1}, |
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NegativeBuckets: []int64{1, 3, -2, -1, 1}, |
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}, |
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lset: labels.FromStrings( |
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"__name__", "test_histogram", |
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), |
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e: []exemplar.Exemplar{ |
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{Labels: labels.FromStrings("dummyID", "59727"), Value: -0.00039, HasTs: true, Ts: 1625851155146}, |
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{Labels: labels.FromStrings("dummyID", "5617"), Value: -0.00029, HasTs: false}, |
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}, |
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}, |
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{ |
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m: "test_gauge_histogram", |
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help: "Like test_histogram but as gauge histogram.", |
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}, |
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{ |
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m: "test_gauge_histogram", |
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typ: MetricTypeGaugeHistogram, |
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}, |
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{ |
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m: "test_gauge_histogram", |
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t: 1234568, |
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shs: &histogram.Histogram{ |
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CounterResetHint: histogram.GaugeType, |
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Count: 175, |
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ZeroCount: 2, |
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Sum: 0.0008280461746287094, |
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ZeroThreshold: 2.938735877055719e-39, |
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Schema: 3, |
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PositiveSpans: []histogram.Span{ |
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{Offset: -161, Length: 1}, |
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{Offset: 8, Length: 3}, |
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}, |
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NegativeSpans: []histogram.Span{ |
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{Offset: -162, Length: 1}, |
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{Offset: 23, Length: 4}, |
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}, |
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PositiveBuckets: []int64{1, 2, -1, -1}, |
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NegativeBuckets: []int64{1, 3, -2, -1, 1}, |
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}, |
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lset: labels.FromStrings( |
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"__name__", "test_gauge_histogram", |
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), |
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e: []exemplar.Exemplar{ |
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{Labels: labels.FromStrings("dummyID", "59727"), Value: -0.00039, HasTs: true, Ts: 1625851155146}, |
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{Labels: labels.FromStrings("dummyID", "5617"), Value: -0.00029, HasTs: false}, |
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}, |
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}, |
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{ |
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m: "test_float_histogram", |
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help: "Test float histogram with many buckets removed to keep it manageable in size.", |
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}, |
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{ |
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m: "test_float_histogram", |
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typ: MetricTypeHistogram, |
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}, |
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{ |
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m: "test_float_histogram", |
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t: 1234568, |
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fhs: &histogram.FloatHistogram{ |
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Count: 175.0, |
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ZeroCount: 2.0, |
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Sum: 0.0008280461746287094, |
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ZeroThreshold: 2.938735877055719e-39, |
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Schema: 3, |
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PositiveSpans: []histogram.Span{ |
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{Offset: -161, Length: 1}, |
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{Offset: 8, Length: 3}, |
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}, |
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NegativeSpans: []histogram.Span{ |
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{Offset: -162, Length: 1}, |
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{Offset: 23, Length: 4}, |
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}, |
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PositiveBuckets: []float64{1.0, 2.0, -1.0, -1.0}, |
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NegativeBuckets: []float64{1.0, 3.0, -2.0, -1.0, 1.0}, |
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}, |
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lset: labels.FromStrings( |
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"__name__", "test_float_histogram", |
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), |
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e: []exemplar.Exemplar{ |
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{Labels: labels.FromStrings("dummyID", "59727"), Value: -0.00039, HasTs: true, Ts: 1625851155146}, |
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{Labels: labels.FromStrings("dummyID", "5617"), Value: -0.00029, HasTs: false}, |
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}, |
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}, |
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{ |
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m: "test_gauge_float_histogram", |
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help: "Like test_float_histogram but as gauge histogram.", |
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}, |
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{ |
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m: "test_gauge_float_histogram", |
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typ: MetricTypeGaugeHistogram, |
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}, |
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{ |
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m: "test_gauge_float_histogram", |
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t: 1234568, |
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fhs: &histogram.FloatHistogram{ |
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CounterResetHint: histogram.GaugeType, |
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Count: 175.0, |
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ZeroCount: 2.0, |
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Sum: 0.0008280461746287094, |
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ZeroThreshold: 2.938735877055719e-39, |
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Schema: 3, |
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PositiveSpans: []histogram.Span{ |
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{Offset: -161, Length: 1}, |
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{Offset: 8, Length: 3}, |
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}, |
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NegativeSpans: []histogram.Span{ |
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{Offset: -162, Length: 1}, |
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{Offset: 23, Length: 4}, |
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}, |
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PositiveBuckets: []float64{1.0, 2.0, -1.0, -1.0}, |
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NegativeBuckets: []float64{1.0, 3.0, -2.0, -1.0, 1.0}, |
|
}, |
|
lset: labels.FromStrings( |
|
"__name__", "test_gauge_float_histogram", |
|
), |
|
e: []exemplar.Exemplar{ |
|
{Labels: labels.FromStrings("dummyID", "59727"), Value: -0.00039, HasTs: true, Ts: 1625851155146}, |
|
{Labels: labels.FromStrings("dummyID", "5617"), Value: -0.00029, HasTs: false}, |
|
}, |
|
}, |
|
{ |
|
m: "test_histogram2", |
|
help: "Similar histogram as before but now without sparse buckets.", |
|
}, |
|
{ |
|
m: "test_histogram2", |
|
typ: MetricTypeHistogram, |
|
}, |
|
{ |
|
m: "test_histogram2_count", |
|
v: 175, |
|
lset: labels.FromStrings( |
|
"__name__", "test_histogram2_count", |
|
), |
|
}, |
|
{ |
|
m: "test_histogram2_sum", |
|
v: 0.000828, |
|
lset: labels.FromStrings( |
|
"__name__", "test_histogram2_sum", |
|
), |
|
}, |
|
{ |
|
m: "test_histogram2_bucket\xffle\xff-0.00048", |
|
v: 2, |
|
lset: labels.FromStrings( |
|
"__name__", "test_histogram2_bucket", |
|
"le", "-0.00048", |
|
), |
|
}, |
|
{ |
|
m: "test_histogram2_bucket\xffle\xff-0.00038", |
|
v: 4, |
|
lset: labels.FromStrings( |
|
"__name__", "test_histogram2_bucket", |
|
"le", "-0.00038", |
|
), |
|
e: []exemplar.Exemplar{ |
|
{Labels: labels.FromStrings("dummyID", "59727"), Value: -0.00038, HasTs: true, Ts: 1625851153146}, |
|
}, |
|
}, |
|
{ |
|
m: "test_histogram2_bucket\xffle\xff1.0", |
|
v: 16, |
|
lset: labels.FromStrings( |
|
"__name__", "test_histogram2_bucket", |
|
"le", "1.0", |
|
), |
|
e: []exemplar.Exemplar{ |
|
{Labels: labels.FromStrings("dummyID", "5617"), Value: -0.000295, HasTs: false}, |
|
}, |
|
}, |
|
{ |
|
m: "test_histogram2_bucket\xffle\xff+Inf", |
|
v: 175, |
|
lset: labels.FromStrings( |
|
"__name__", "test_histogram2_bucket", |
|
"le", "+Inf", |
|
), |
|
}, |
|
{ |
|
m: "rpc_durations_seconds", |
|
help: "RPC latency distributions.", |
|
}, |
|
{ |
|
m: "rpc_durations_seconds", |
|
typ: MetricTypeSummary, |
|
}, |
|
{ |
|
m: "rpc_durations_seconds_count\xffservice\xffexponential", |
|
v: 262, |
|
lset: labels.FromStrings( |
|
"__name__", "rpc_durations_seconds_count", |
|
"service", "exponential", |
|
), |
|
}, |
|
{ |
|
m: "rpc_durations_seconds_sum\xffservice\xffexponential", |
|
v: 0.00025551262820703587, |
|
lset: labels.FromStrings( |
|
"__name__", "rpc_durations_seconds_sum", |
|
"service", "exponential", |
|
), |
|
}, |
|
{ |
|
m: "rpc_durations_seconds\xffservice\xffexponential\xffquantile\xff0.5", |
|
v: 6.442786329648548e-07, |
|
lset: labels.FromStrings( |
|
"__name__", "rpc_durations_seconds", |
|
"quantile", "0.5", |
|
"service", "exponential", |
|
), |
|
}, |
|
{ |
|
m: "rpc_durations_seconds\xffservice\xffexponential\xffquantile\xff0.9", |
|
v: 1.9435742936658396e-06, |
|
lset: labels.FromStrings( |
|
"__name__", "rpc_durations_seconds", |
|
"quantile", "0.9", |
|
"service", "exponential", |
|
), |
|
}, |
|
{ |
|
m: "rpc_durations_seconds\xffservice\xffexponential\xffquantile\xff0.99", |
|
v: 4.0471608667037015e-06, |
|
lset: labels.FromStrings( |
|
"__name__", "rpc_durations_seconds", |
|
"quantile", "0.99", |
|
"service", "exponential", |
|
), |
|
}, |
|
{ |
|
m: "without_quantiles", |
|
help: "A summary without quantiles.", |
|
}, |
|
{ |
|
m: "without_quantiles", |
|
typ: MetricTypeSummary, |
|
}, |
|
{ |
|
m: "without_quantiles_count", |
|
v: 42, |
|
lset: labels.FromStrings( |
|
"__name__", "without_quantiles_count", |
|
), |
|
}, |
|
{ |
|
m: "without_quantiles_sum", |
|
v: 1.234, |
|
lset: labels.FromStrings( |
|
"__name__", "without_quantiles_sum", |
|
), |
|
}, |
|
} |
|
|
|
p := NewProtobufParser(inputBuf.Bytes()) |
|
i := 0 |
|
|
|
var res labels.Labels |
|
|
|
for { |
|
et, err := p.Next() |
|
if errors.Is(err, io.EOF) { |
|
break |
|
} |
|
require.NoError(t, err) |
|
|
|
switch et { |
|
case EntrySeries: |
|
m, ts, v := p.Series() |
|
|
|
var e exemplar.Exemplar |
|
p.Metric(&res) |
|
found := p.Exemplar(&e) |
|
require.Equal(t, exp[i].m, string(m)) |
|
if ts != nil { |
|
require.Equal(t, exp[i].t, *ts) |
|
} else { |
|
require.Equal(t, exp[i].t, int64(0)) |
|
} |
|
require.Equal(t, exp[i].v, v) |
|
require.Equal(t, exp[i].lset, res) |
|
if len(exp[i].e) == 0 { |
|
require.Equal(t, false, found) |
|
} else { |
|
require.Equal(t, true, found) |
|
require.Equal(t, exp[i].e[0], e) |
|
} |
|
|
|
case EntryHistogram: |
|
m, ts, shs, fhs := p.Histogram() |
|
p.Metric(&res) |
|
require.Equal(t, exp[i].m, string(m)) |
|
if ts != nil { |
|
require.Equal(t, exp[i].t, *ts) |
|
} else { |
|
require.Equal(t, exp[i].t, int64(0)) |
|
} |
|
require.Equal(t, exp[i].lset, res) |
|
require.Equal(t, exp[i].m, string(m)) |
|
if shs != nil { |
|
require.Equal(t, exp[i].shs, shs) |
|
} else { |
|
require.Equal(t, exp[i].fhs, fhs) |
|
} |
|
j := 0 |
|
for e := (exemplar.Exemplar{}); p.Exemplar(&e); j++ { |
|
require.Equal(t, exp[i].e[j], e) |
|
e = exemplar.Exemplar{} |
|
} |
|
require.Equal(t, len(exp[i].e), j, "not enough exemplars found") |
|
|
|
case EntryType: |
|
m, typ := p.Type() |
|
require.Equal(t, exp[i].m, string(m)) |
|
require.Equal(t, exp[i].typ, typ) |
|
|
|
case EntryHelp: |
|
m, h := p.Help() |
|
require.Equal(t, exp[i].m, string(m)) |
|
require.Equal(t, exp[i].help, string(h)) |
|
|
|
case EntryUnit: |
|
m, u := p.Unit() |
|
require.Equal(t, exp[i].m, string(m)) |
|
require.Equal(t, exp[i].unit, string(u)) |
|
|
|
case EntryComment: |
|
require.Equal(t, exp[i].comment, string(p.Comment())) |
|
} |
|
|
|
i++ |
|
} |
|
require.Equal(t, len(exp), i) |
|
}
|
|
|