Start Mesh Observability with Golden Signals

Mesh observability fails when every proxy metric gets equal attention. Start with the four golden signals and add detail only when it explains a decision. Latency and traffic Latency should be percentile-based and route-aware. Traffic should show demand by source and destination. Together they tell you whether the same service is slower under the same load, or simply carrying more work. Errors and saturation Errors must include policy outcomes, timeouts, and upstream failures, not only application 500s. Saturation names the constraint: proxy CPU, pending requests, connection pool pressure, workload CPU, or downstream queue depth. The decision test If a panel…

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