ReferenceIncidentsEra 2 · SeedCache stampedeThe Cache restarted empty. Every miss went to the database at once.What happens#The Cache restarted empty. Every miss went to the database at once.How to prevent it#Stampede protection coalesces misses. Cache warming refills it before traffic.The postmortem opens the first of these that you do not own yet:Stampede protectionCache warmingEngineering terms#Cache stampedeCache warmingThundering herd