Incident Library

Organisation

Mercari

Mercari · mercari

1 case · 2025

Root cause Capacity exhaustion
Component kube-dns
Contributing factor No cachingSingle point of failure
Symptom DNS resolution failuresIntermittent timeoutsService outage

Cases

  1. IL-0080 kube-dns on Mercari's GKE clusters could not keep up with peak-hour DNS query rates, and a Sev1 production outage followed when several services failed DNS resolutionMercari · 2025 · sev1

    Root cause Capacity exhaustion