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# OpenTelemetry Hands-On - Manual and Automatic instrumentation for Java and Python apps


- **Date:** Friday, Jul 11, 2025
- **Time:** 12:00–14:00 (120 min)
- **Room:** M2 (40 Seats)
- **Event:** World Congress 2025

## Description

In today's modern software landscape - in the cloud-native one in particular - observability has become a critical aspect of ensuring the performance, reliability, and security of applications. OpenTelemetry, a standard and open-source observability framework, provides a unified way to collect and export telemetry data from applications and services. This hands-on lab will guide participants through the process of using OpenTelemetry to instrument a simple application, collect metrics, traces, and logs, and send them to various backends for analysis.

The lab covers the implementation and usage of OpenTelemetry into Python and Java-based applications. 

The exercises include: the instrumentation of a polyglot microservice application,
auto-instrumentation vs. manual instrumentation,
evaluating the collected traces, logs and metrics,
configuring a collector,
analysing the results in Jaeger and Prometheus.


## Speakers

### [Jens Plüddemann](https://www.wearedevelopers.com/@jens-pluddemann)

Novatec Consulting GmbH - Junior Observability Consultant
### [maeddes](https://www.wearedevelopers.com/@maeddes)

Chief Technologist at Novatec


## Related talks at this congress

- [LLMOps-driven fine-tuning, evaluation, and inference with NVIDIA NIM & NeMo Microservices](https://www.wearedevelopers.com/events/world-congress-2025/sessions/862-llmops-driven-fine) — Anshul Jindal
- [What's (new) with Spring Boot and Containers?](https://www.wearedevelopers.com/events/world-congress-2025/sessions/883-what-s-new-with) — Eva Panadero, maeddes
- [Logs in observability - Correlation](https://www.wearedevelopers.com/events/world-congress-2025/sessions/524-logs-in) — Michal Bojko
- [Code Red: When Your Tools Turn Against You ](https://www.wearedevelopers.com/events/world-congress-2025/sessions/510-code-red-when-your) — Aaron Bray, Julian Totzek-Hallhuber