Sanajan Redis minangka in-memory, bisa nebot data menyang disk supaya data tahan sadurunge restart. Ngebokake loro mekanisme — RDB (snapshot wujud-saat-iki) lan AOF (log append-only saka operasi) — kanthi trade-off durability/performance sing beda.
RDB — snapshot wujud-saat-iki
RDB takes SNAPSHOTS of the dataset at intervals, saving a compact binary file.
✓ Compact single-file backups; fast restarts (load the snapshot)
✓ Good for backups and disaster recovery; less impact on performance
✗ You can LOSE data since the last snapshot (e.g. last few minutes) if Redis crashes
→ Configure save points: e.g. "save after 900s if ≥1 change, 300s if ≥10 changes"
