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OpenTracing Kafka tracing example (Java)

This example demonstrates how to trace asynchronous or pub/sub-style communication via Kafka using OpenTracing client libraries and SignalFx. It contains an example producer application and an example consumer application that are instrumented and report to SignalFx.

Building

To build this example, simply run mvn package. This will create a Jar for each application. Run the producer with:

$ java -DaccessToken=MY_ORG_ACCESS_TOKEN -DkafkaBrokers=BROKER_LIST -DkafkaTopic=TOPIC_NAME \
       -jar ./producer/target/opentracing-kafka-java-producer-example-1.0-SNAPSHOT-shaded.jar

You can then run the consumer to consume the message produced:

$ java -DaccessToken=MY_ORG_ACCESS_TOKEN -DkafkaBrokers=BROKER_LIST -DkafkaTopic=TOPIC_NAME \
       -jar ./consumer/target/opentracing-kafka-java-consumer-example-1.0-SNAPSHOT-shaded.jar &

In both cases, provide your SignalFx organization's access token in the accessToken property, a comma-separated list of Kafka brokers in the kafkaBrokers property, and a topic name to use in the kafkaTopic property. This will run the example producer and the example consumer, exchanging a message over the defined Kafka topic and reporting a single trace encompassing service signalfx-opentracing-kafka-java-producer-example and signalfx-opentracing-kafka-java-consumer-example.

Other Resources

The OpenTracing client library providing the integration with the Kafka producer and Kafka consumer: https://github.com/opentracing-contrib/java-kafka-client