open-telemetry/opentelemetry-ruby-contrib

Support `jaeger_remote` sampling strategy

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#1,601 opened on Jul 22, 2025

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help wantedkeepspec-compliance

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Description

Copied from https://github.com/open-telemetry/opentelemetry-ruby/issues/1252

Added in: https://github.com/open-telemetry/opentelemetry-specification/pull/1791 More info in: https://github.com/open-telemetry/opentelemetry-specification/pull/2222 More info in: https://github.com/open-telemetry/opentelemetry-specification/pull/2246

The jaeger_remote sampling strategy appears to be a sampling strategy that is dictated by a GRPC service that provides sampling details to the tracer.

There is some precedence for it with: https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/main/sampler/xray

Contributor guide

Research direction
Study the referenced specification PRs (https://github.com/open telemetry/opentelemetry specification/pull/1791, https://github.com/open telemetry/opentelemetry specification/pull/2222, https://github.com/open telemetry/opentelemetry specification/pull/2246) to understand the jaeger remote sampling strategy. Then examine the existing xray sampler implementation at https://github.com/open telemetry/opentelemetry ruby contrib/tree/main/sampler/xray for code patterns and structure. Implement a new sampler that communicates with a gRPC service to retrieve sampling details.
Tech stack
ruby
Domain
backendapiobservability
Issue type
Feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-2 days
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Fresh
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
RubyOpenTelemetry concepts
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
40