grpc-go-distributed-tracing-example

Small example of distributed tracing in grpc-go applications. Using OpenCensus for collecting traces data and Jaeger for export.

Overview

Example has 3 parts.

Client:

• reads "radius" from console
• calls "Circle.area" grpc method to calculate an area of a circle with given radius

Circle:

• Circle.area calls Math.sqr grpc method to calculate the radius squared
• Circle.area returns value of area

Math:

• Math.sqr returns the radius squared

Prerequisites

1. Start Jaeger Exporter locally in Docker

docker run -d --name jaeger \
  -p 16686:16686 \
  -p 14268:14268 \
  jaegertracing/all-in-one:1.22

• 16686 - Jaeger UI port
• 14268 - Collector port

2. Run main func of each part
3. See your traces in http://localhost:16686/

Example