Charity Majors 10/30/2025

How many pillars of observability can you fit on the head of a pin?

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The article critiques the concept of 'pillars of observability' as a misleading marketing term used to sell tools. It argues that the debate over what constitutes a 'pillar' (like profiling, cost, or errors) is non-technical. Instead, it advocates for focusing on the technical concept of 'signals' as defined by OpenTelemetry, such as traces, metrics, logs, and baggage, for effectively monitoring modern, complex systems.

How many pillars of observability can you fit on the head of a pin?

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