Observability - CI/CD Glossary Definition
Observability is how well you can understand a system's internal state from its logs, metrics, and traces.
Observability is the degree to which you can understand a system's internal state from its external outputs, primarily logs, metrics, and traces. High observability makes debugging production issues faster.
Three pillars
Logs record discrete events, metrics aggregate numeric measurements over time, and traces follow a request across services. Together they explain what happened and why.
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