Java Backend Observability with OpenTelemetry Traces and Minimal Code | HackerNoon
Briefly

OpenTelemetry vastly improves system observability by providing a framework that allows developers to trace requests through the system and understand application performance better.
Traces consist of multiple spans, each representing a specific unit of work, forming a hierarchical structure that aids in visualizing request processing within the system.
Our aim in integrating OpenTelemetry was to maximize system observability, which is critical for maintaining and improving the performance of our applications.
While we had existing systems for logging and metrics, it was the tracing capabilities of OpenTelemetry that provided a new level of insight into our backend processes.
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