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Production Outage: How a Kubernetes 1.36 HPA Misconfiguration Took Down Our 2026 SaaS

DEV Community·ANKUSH CHOUDHARY JOHAL·6 months ago
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At 3:42 AM UTC on March 14, 2026, our Kubernetes 1.36 cluster entered a cascading failure loop that took down our multi-tenant SaaS platform for 47 minutes . Revenue loss: $23,400 . Customer-facing error rate: 94.7% . The root cause? A single misconfigured HPA field that shipped in a routine deployment. This is the full postmortem—no sugarcoating, no vague hand-waving, just the config, the numbers, and the fix.

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