feat(opentelemetry-sampler-aws-xray): Add Rate Limiter and Sampling Targets Poller Logic #2924
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…argets Poller Logic
Codecov Report✅ All modified and coverable lines are covered by tests. Additional details and impacted files@@ Coverage Diff @@
## main #2924 +/- ##
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| } from './rule-cache'; | ||
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| import { SamplingRuleApplier } from './sampling-rule-applier'; | ||
| import { PACKAGE_NAME } from './version'; |
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How this file is generated? I tried 'npm run setup:dev' and 'npm run compile', none of them generate this file and that is causing build failure.
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It is generated by npm run version:update. However, while this package is in the incubator folder, this command isn't automatically run for this package until it is moved out of this directory.
incubator/opentelemetry-sampler-aws-xray/src/fallback-sampler.ts
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incubator/opentelemetry-sampler-aws-xray/test/fallback-sampler.test.ts
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| } | ||
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| public toString(): string { | ||
| return `RateLimitingSampler{rate limiting sampling with sampling config of ${this.quota} req/sec and 0% of additional requests}`; |
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nit: do we need 'and 0% of additional requests' in the context of rate limiting?
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No, but I kept this text to be aligned with the Python implementation.
incubator/opentelemetry-sampler-aws-xray/src/aws-xray-sampling-client.ts
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@dyladan Yes, Luke is from AWS, and he can be considered as an SME for this PR. Will be addressing his comments soon. |
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Which problem is this PR solving?
Short description of the changes
This PR is a followup to #2824
SamplingRuleApplier.SamplingRuleApplierwill sample the requests.GetSamplingTargetscall to determine the next targetRateLimitingSampler(applied before the fixed rate sampler) to be used in each rule applier.FallbackSampleris updated to be a combination of above samplers to sample1 req/secand5%of additional requests in that second.This PR's implementation was tested against X-Ray's Centralized Sampling Integration tests.