All challenges
Code AnalysisHard 60s

Thundering herd on expiry

// 50k cache keys written with the same TTL 3600 at deploy time. // They all expire in the same second. What failure pattern occurs?

Think you can answer under pressure?

Get matched and answer live questions in 3-minute 1v1 battles. Elo ranking, badge tiers and bragging rights on the line.

Play this in a 3-minute battle