redis config_error ai_generated true

Keys being evicted unexpectedly

ID: redis/eviction-policy-issue

Also available as: JSON · Markdown
80%Fix Rate
84%Confidence
3Evidence
2023-01-01First Seen

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
7 active — — —

Root Cause

Redis evicting important keys due to wrong eviction policy.

generic

Workarounds

  1. 88% success Use volatile-lru or allkeys-lru based on key importance
  2. 90% success Set TTL on cache keys, no TTL on important keys, use volatile-* policy

Dead Ends

Common approaches that don't work:

  1. Set noeviction policy globally 72% fail

    Writes fail when memory full

  2. Give all keys same TTL 75% fail

    Uniform expiry, not useful