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AI-generatedLRU Crawler vs Lazy Expiration: Choosing Reclamation Strategy Under High Write Throughput
When memcached runs under sustained high write throughput, expired items can accumulate and either waste memory or trigger premature evictions. Two documented reclamation paths exist: lazy expiration, which checks expiry only on item access, and the LRU crawler, a background thread that proactively scans and removes expired entries. Enabling the crawler ( -o
memcached