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Getting Started Guide - Java

This is a simple application instrumented with OpenTelemetry Java's automatic instrumentation javaagent. It demonstrates how to configure OpenTelemetry Java to send data to New Relic.

Requirements

Running the application

  1. Set the following environment variables to configure OpenTelemetry to send data to New Relic:

    export OTEL_SERVICE_NAME=getting-started-java
    export OTEL_EXPERIMENTAL_EXPORTER_OTLP_RETRY_ENABLED=true
    export OTEL_EXPORTER_OTLP_METRICS_DEFAULT_HISTOGRAM_AGGREGATION=BASE2_EXPONENTIAL_BUCKET_HISTOGRAM
    export OTEL_EXPERIMENTAL_RESOURCE_DISABLED_KEYS=process.command_args
    export OTEL_EXPORTER_OTLP_ENDPOINT=https://otlp.nr-data.net
    export OTEL_EXPORTER_OTLP_HEADERS=api-key=<your_license_key>
    export OTEL_ATTRIBUTE_VALUE_LENGTH_LIMIT=4095
    export OTEL_EXPORTER_OTLP_COMPRESSION=gzip
    export OTEL_EXPORTER_OTLP_PROTOCOL=http/protobuf
    export OTEL_EXPORTER_OTLP_METRICS_TEMPORALITY_PREFERENCE=delta
  2. Run the application with the following command and open http://localhost:8080/fibonacci?n=1 in your web browser to ensure it is working.

    ./gradlew bootRun
  3. Experiment with providing different values for n in the query string. Valid values are between 1 and 90. Values outside this range cause an error which will show up in New Relic.