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May 31 · 14 min read · Part III — End-to-End Debugging Walkthrough 12. P99 Latency Spike Runbook: Metric → (Exemplar) → Trace → Log 12.1 Step 0: Symptom Confirmation Which SLI (P99) degraded, and in which dimension (servic
Join discussionMay 31 · 3 min read · Why Trace ↔ Metric Full Direct Correlation Breaks 4.1 The Nature of Metrics: Aggregated Time Series + Label Index The OTel metric model assumes "pre-aggregated timeseries." Metrics are not per-reques
Join discussionMay 31 · 14 min read · (APM SDK vs OpenTelemetry SDK) 0. Introduction: Why This Document Exists 0.1 Observability Correlation Determines Debugging Cost The cost of modern incident response is determined not by "whether dat
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