Redis ले डेटा RAM मा सञ्चय गर्ने भएकोले, मेमोरी व्यवस्थापन अत्यन्त महत्वपूर्ण छ — maxmemory सीमा, eviction policies, मेमोरी अनुकूलन, र निगरानी बुझ्नु Redis लाई विश्वसनीय रूपमा चलाउन मेमोरी समाप्त नहुन दिन आवश्यक छ।
maxmemory र eviction
text
Set a memory limit so Redis doesn't consume all RAM:
maxmemory 2gb # cap Redis at 2GB
maxmemory-policy allkeys-lru # what to do when the limit is reached
When the limit is hit, Redis EVICTS keys per the policy (or rejects writes):
allkeys-lru → evict least-recently-used (any key) — common for a pure cache
allkeys-lfu → evict least-frequently-used
volatile-lru → evict LRU among keys WITH a TTL only
volatile-ttl → evict keys closest to expiry
noeviction → reject writes when full (good if Redis holds important data)