payments api latency

sector
fintech
problem
Checkout API degraded under peak load; p95 above 1.8s and retries amplifying the queue.
outcome
p95 1.8s → 210ms, retry storm eliminated, no new infrastructure cost
  • java
  • postgres
  • k8s
  • observability
  • OPEN SOURCE

Seed entry — replace with a real case during the content stage. Structure: problem, constraint, decision, number. No adjectives, no client named without written consent.

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