Dev Tools · 2h ago
vLLM PagedAttention Cache Corruption Causes Production Outage
A production incident at 8am with peak RPS of 14,720 revealed a KV cache corruption error in vLLM's PagedAttention. The error, logged as 'Cache corruption detected', disrupted model serving. The root cause remains unclear, with the team scrambling to restore service.
Meridian48 take
This highlights the fragility of memory management in high-throughput LLM serving systems, where cache corruption can cascade into major outages.
vllmcache-corruption