telemetry

Getting Started with Apache Polaris, Prometheus and Jaeger

This example requires jq to be installed on your machine.

1. Build the Polaris image if it's not already present locally:

   ./gradlew \
     :polaris-server:assemble \
     :polaris-server:quarkusAppPartsBuild --rerun \
     -Dquarkus.container-image.build=true

2. Start the docker compose group by running the following command from the root of the repository:

   export ASSETS_PATH=$(pwd)/getting-started/assets/
   export CLIENT_ID=root
   export CLIENT_SECRET=s3cr3t
   docker compose -f getting-started/telemetry/docker-compose.yml up

3. To access Polaris from the host machine, first request an access token:

   export POLARIS_TOKEN=$(curl -s http://localhost:8181/api/catalog/v1/oauth/tokens \
      --user root:s3cr3t \
      -d 'grant_type=client_credentials' \
      -d 'scope=PRINCIPAL_ROLE:ALL' | jq -r .access_token)

4. Then, use the access token in the Authorization header when accessing Polaris; you can also test the X-Request-ID header; you should see it in all logs and traces:

   curl -v 'http://localhost:8181/api/management/v1/principal-roles' \
     -H "Authorization: Bearer $POLARIS_TOKEN" \
     -H "X-Request-ID: 1234"
   curl -v 'http://localhost:8181/api/catalog/v1/config?warehouse=quickstart_catalog' \
     -H "Authorization: Bearer $POLARIS_TOKEN" \
     -H "X-Request-ID: 5678"

5. Access the following services:

   • Prometheus UI: browse to http://localhost:9093 to view metrics.
   • Jaeger UI: browse to http://localhost:16686 to view traces.