OpenTracing demo and training.

The main goal is to understand how to works OpenTracing with a couple of simple Spark core microservices.

Simple Flow

sequenceDiagram
SimpleGrettings ->> ComplexGrettings: Hello <requested name>
ComplexGrettings-->>SimpleGrettings: And Welcome <requested name>

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Things that you need

Docker, of course

For this training I'm using jaeger, but you have more options: http://opentracing.io/documentation/pages/supported-tracers

docker run -d -p 5775:5775/udp -p 16686:16686 jaegertracing/all-in-one:latest

Install artifacts from parent project as follow :

mvn clean install

Running microservices

The next steep is up docker containers

docker-compose up

You need to do the request.

For example:

curl http://localhost:8080/hello/Arya

You can check the result opening http://localhost:16686/ and see the simple traces in Jaeger UI.