ExplorViz Span-Service

Scalable service that processes, persists, aggregates and queries the observed traces of method executions within monitored software applications.

Features

This replaces the trace-service and landscape-service previously used to process spans.

Prerequisites

• Java 17 or higher
• Make sure to run the ExplorViz software stack before starting the service, as it provides the required database(s) and the Kafka broker

Running the application in dev mode

You can run your application in dev mode that enables live coding using:

./gradlew quarkusDev

This also enables the dev configuration profile, i.e. using the properties prefixed with %dev from src/main/resources/application.properties.

NOTE: Quarkus now ships with a Dev UI, which is available in dev mode only at http://localhost:8080/q/dev/.

Packaging and running the application

The application can be packaged and tested using:

./gradlew build

It produces the quarkus-run.jar file in the build/quarkus-app/ directory.

You can skip running the integration tests by adding -x integrationTest. To skip all tests and code analysis use the assemble task instead of build.

The application is now runnable using java -jar build/quarkus-app/quarkus-run.jar. Be aware that it’s not an über-jar as the dependencies are copied into the build/quarkus-app/lib/ directory.

If you want to build an über-jar, which includes the entire application in a single jar file, execute the following command:

./gradlew build -Dquarkus.package.type=uber-jar

The application, packaged as an über-jar, is now runnable using java -jar build/span-service-1.0-SNAPSHOT-runner.jar. You can add -Dquarkus.profile=dev to enable the %dev properties.

Creating a native executable

You can create a native executable using:

./gradlew build -Dquarkus.package.type=native

Or, if you don't have GraalVM installed, you can run the native executable build in a container using:

./gradlew build -Dquarkus.package.type=native -Dquarkus.native.container-build=true

You can then execute your native executable with: ./build/span-service-1.0-SNAPSHOT-runner

If you want to learn more about building native executables, please consult https://quarkus.io/guides/gradle-tooling#building-a-native-executable.