open-telemetry / open-telemetry/opentelemetry-cpp
[Metrics SDK] Add cardinality limits to metrics pipelines
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spec-compliance
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- Dominant language
- C++
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- 1d 13h
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Description
Specification PR: https://github.com/open-telemetry/opentelemetry-specification/pull/2960
- Cardinality limit for Sync Instrument + Delta Temporality (#2347)
- Cardinality limit for Sync Instrument + Cumulative Temporality (#2348)
- Cardinality limit for Async Instrument + Delta Temporality (#2349)
- Cardinality limit for Async Instrument + Cumulative Temporality (#2350)
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start with the linked OpenTelemetry specification PR and use the four subtasks as the implementation map: sync and async instruments, each with delta and cumulative temporality. Determine the Metrics SDK entry points for each pipeline and confirm the cardinality-limit behavior for all four combinations; done means all four checklist items are addressed and the relevant SDK checks pass.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- cpp
- Domain
- observability-sre
- Issue type
- Feature
- Difficulty
- 5/5
- Estimated time
- Over a week
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 30/100