OpenTelemetry is a collection of tools, APIs, and SDKs for generating and collecting telemetry data (metrics, logs, and traces). This is very useful for analyzing software performance and behavior, especially in highly distributed systems.
We started our journey with Traces in Duende IdentityServer v6.1. .NET 8 has full support for Open Telemetry and so does Duende IdentityServer v7. IdentityServer emits traces, metrics and logs.
Metrics Metrics are high level statistic counters.