Design a Distributed LRU Cache

Focus on the architecture of the distributed LRU (Least Recently Used) cache, considering both data consistency and availability. Discuss how you would handle cache eviction policies, ensuring that the least recently used items are removed efficiently while maintaining performance. Address potential challenges such as network latency, partitioning, and replication strategies. Consider how you would implement synchronization across distributed nodes and what technologies or frameworks you might use to support scalability. Be prepared to explain trade-offs between consistency and performance, and how you would monitor and optimize the cache's effectiveness over time.