OpenTelemetry Demo

Distributed tracing demo with OpenTelemetry.

The project consists of a data provider which generates random data using the Datafaker library before being publishing to a Kafka topic every 2 seconds. Topics are then consumed by the receiver, persisted, and logged to the console.

There are also a couple of REST endpoints for retrieving stored Pokémon sightings from the database.

• http://localhost:8080/pokemon-sightings/id/{id}
• http://localhost:8080/pokemon-sightings/name/{name}

Traces are automatically added to Kafka clients and REST API by Quarkus and OpenTelemetry. Traces for database transactions are added by wrapping the datasource in a special OpenTelemetry datasource tracing wrapper as described here.

How to run it

    # Run Jaeger, OTEL Collector, and MySQL
    docker-compose -f dev-services/docker-compose up -d

    # Build and install shared message type
    mvn -f message-data-type/pom.xml clean install

    # Start Pokemon sighting application
    mvn -f pokemon-sightings/pom.xml quarkus:dev

    # Start data provider
    mvn -f data-provider/pom.xml quarkus:dev

Visit http://localhost:16686/search to check out the collected traces in Jaeger.