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Quick Summary
Maintain an append-only log of cache operations to ensure crash recovery.
Replay persisted records sequentially to reconstruct both cached values and LRU ordering.
Gracefully ignore trailing corrupted data without interrupting system startup.
What This Tests
State persistence and crash recovery
Efficient I/O and append-only logging
LRU cache mechanics with dynamic reordering
Fault-tolerant data deserialization
Common Patterns
Hashing
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