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fix(sdk-metrics-base): only record non-negative histogram values. #3002

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merged 5 commits into from
May 30, 2022
Merged

fix(sdk-metrics-base): only record non-negative histogram values. #3002

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5687fb1
fix(sdk-metrics-base): only record non-negative histogram values.
pichlermarc May 30, 2022
b67b462
fix(sdk-metrics-base): adapt tests to use non-negative values.
pichlermarc May 30, 2022
ed38610
fix(sdk-metrics-base): add test that negative histogram values are dr…
pichlermarc May 30, 2022
f04f8cd
fix(changelog): add changelog entry.
pichlermarc May 30, 2022
eb1f0a9
Merge branch 'main' into fix-non-negative-histogram-values
pichlermarc May 30, 2022
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2 changes: 2 additions & 0 deletions experimental/CHANGELOG.md
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Expand Up @@ -10,6 +10,8 @@ All notable changes to experimental packages in this project will be documented

### :bug: (Bug Fix)

* fix(sdk-metrics-base): only record non-negative histogram values #3002 @pichlermarc

### :books: (Refine Doc)

### :house: (Internal)
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4 changes: 4 additions & 0 deletions experimental/packages/opentelemetry-sdk-metrics-base/src/Instruments.ts
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Expand Up @@ -72,6 +72,10 @@ export class HistogramInstrument extends SyncInstrument implements metrics.Histo
* Records a measurement. Value of the measurement must not be negative.
*/
record(value: number, attributes?: metrics.MetricAttributes, ctx?: api.Context): void {
if (value < 0) {
api.diag.warn(`negative value provided to histogram ${this._descriptor.name}: ${value}`);
return;
}
this._record(value, attributes, ctx);
}
}
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62 changes: 51 additions & 11 deletions experimental/packages/opentelemetry-sdk-metrics-base/test/Instruments.test.ts
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Expand Up @@ -18,9 +18,24 @@ import * as assert from 'assert';
import * as sinon from 'sinon';
import { InstrumentationScope } from '@opentelemetry/core';
import { Resource } from '@opentelemetry/resources';
import { AggregationTemporality, InstrumentDescriptor, InstrumentType, MeterProvider, MetricReader, DataPoint, DataPointType } from '../src';
import {
AggregationTemporality,
InstrumentDescriptor,
InstrumentType,
MeterProvider,
MetricReader,
DataPoint,
DataPointType
} from '../src';
import { TestMetricReader } from './export/TestMetricReader';
import { assertMetricData, assertDataPoint, commonValues, commonAttributes, defaultResource, defaultInstrumentationScope } from './util';
import {
assertMetricData,
assertDataPoint,
commonValues,
commonAttributes,
defaultResource,
defaultInstrumentationScope
} from './util';
import { Histogram } from '../src/aggregator/types';
import { ObservableResult, ValueType } from '@opentelemetry/api-metrics';

Expand Down Expand Up @@ -257,10 +272,10 @@ describe('Instruments', () => {
});

histogram.record(10);
// -0.1 should be trunc-ed to -0
histogram.record(-0.1);
// 0.1 should be trunc-ed to 0
histogram.record(0.1);
histogram.record(100, { foo: 'bar' });
histogram.record(-0.1, { foo: 'bar' });
histogram.record(0.1, { foo: 'bar' });
await validateExport(deltaReader, {
descriptor: {
name: 'test',
Expand Down Expand Up @@ -297,6 +312,18 @@ describe('Instruments', () => {
});
});

it('should not record negative INT values', async () => {
const { meter, deltaReader } = setup();
const histogram = meter.createHistogram('test', {
valueType: ValueType.DOUBLE,
});

histogram.record(-1, { foo: 'bar' });
await validateExport(deltaReader, {
dataPointType: DataPointType.HISTOGRAM,
dataPoints: [],
});
});

it('should record DOUBLE values', async () => {
const { meter, deltaReader } = setup();
Expand All @@ -305,9 +332,9 @@ describe('Instruments', () => {
});

histogram.record(10);
histogram.record(-0.1);
histogram.record(0.1);
histogram.record(100, { foo: 'bar' });
histogram.record(-0.1, { foo: 'bar' });
histogram.record(0.1, { foo: 'bar' });
await validateExport(deltaReader, {
dataPointType: DataPointType.HISTOGRAM,
dataPoints: [
Expand All @@ -316,26 +343,39 @@ describe('Instruments', () => {
value: {
buckets: {
boundaries: [0, 5, 10, 25, 50, 75, 100, 250, 500, 1000],
counts: [1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0],
counts: [0, 1, 0, 1, 0, 0, 0, 0, 0, 0, 0],
},
count: 2,
sum: 9.9,
sum: 10.1,
},
},
{
attributes: { foo: 'bar' },
value: {
buckets: {
boundaries: [0, 5, 10, 25, 50, 75, 100, 250, 500, 1000],
counts: [1, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0],
counts: [0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0],
},
count: 2,
sum: 99.9,
sum: 100.1,
},
},
],
});
});

it('should not record negative DOUBLE values', async () => {
const { meter, deltaReader } = setup();
const histogram = meter.createHistogram('test', {
valueType: ValueType.DOUBLE,
});

histogram.record(-0.5, { foo: 'bar' });
await validateExport(deltaReader, {
dataPointType: DataPointType.HISTOGRAM,
dataPoints: [],
});
});
});

describe('ObservableCounter', () => {
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