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open-telemetry / oteps

OpenTelemetry Enhancement Proposals
https://opentelemetry.io
Apache License 2.0
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Proposal: Remote Sampling #191

Closed bhautikpip closed 2 weeks ago

bhautikpip commented 3 years ago

Introduction

Remote Sampling is a sampling technique in which sampling configuration for a path/request can be applied in a distributed way. For example, if there are 5 hosts in the fleet and user has set sampling reservoir as 5 req/sec and the fixed rate as 5% then remote sampling helps to distribute sampling configs to all the hosts in a way ultimately SDK samples 5 request/sec and additional 5% of requests after that.

This document talks about X-Ray Centralized Sampling and how to implement it using Sampling Interface for OTel SDKs.

The proposal here would be to standardized remote sampling data model/protocol required by SDK side implementation. Obviously to implement such sampling approach backend would also have to compute quota and feed data in to the SDK for sampling decision.

trask commented 2 weeks ago

Closing in favor of https://github.com/open-telemetry/opentelemetry-specification/issues/2085 (we are planning to archive this repository)