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Garden State Java User Group

October 2025 Meeting Information

October 14, 2025
Lightning Talks
Tracing Event-Based Systems with OpenTelemetry

We are happy to announce that Drew University students: Logan Kleva; Chris Gibbs; and Thomas Jenkins; will present 15-minute lightning talks, and Harry Kimpel, will be present the main topic at this month's meeting!

Logan Kleva will present “What's Next? Taking Your Experiences Off the Computer

Chris Gibbs will present “Data in the Business World: An Engineer's Perspective

Thomas Jenkins will present “Vibecoding: Cybersecurity Nightmare?

Harry Kimpel will present “Tracing Event-Based Systems with OpenTelemetry

Ideally, you should be using distributed tracing to trace requests through your event-based system such as Kafka. It decouples producers and consumers, which means there are no direct transactions to trace between them. These systems also use asynchronous processes, which have implicit, not explicit, dependencies. That makes it challenging to understand how your microservices are working together.

However, it is possible to monitor your event-based systems with distributed tracing and OpenTelemetry. You can then analyze and visualize your traces in an open source distributed tracing tool like Jaeger or a full observability platform like New Relic. In this talk I will leverage a simple application to show how you can achieve this.