# Reactor

<!-- llms-txt-link: /llms.txt -->

> OpenTelemetry Java agent instrumentation

This instrumentation enables context propagation for Project Reactor reactive streams, it does not emit any telemetry on its own.

- **Name**: `reactor-3.1`
- **Scope**: `io.opentelemetry.reactor-3.1`
- **Target versions**: `io.projectreactor:reactor-core:[3.1.0.RELEASE,)`
- **Library**: https://projectreactor.io/

## Configuration

| Option | Type | Default | Description |
| --- | --- | --- | --- |
| `otel.instrumentation.reactor.experimental-span-attributes` | boolean | false | Enables the capture of the experimental `reactor.canceled` attribute on spans when reactive streams are cancelled. |

## Data

- **JSON**: [/data/javaagent/instrumentations/reactor-3.1/reactor-3.1-744460a14938.json](/data/javaagent/instrumentations/reactor-3.1/reactor-3.1-744460a14938.json)
- **Explore**: [/java-agent/instrumentation/reactor-3.1](/java-agent/instrumentation/reactor-3.1)