How can I implement LRU caching in distributed systems?

How can I implement LRU caching in distributed systems?

Implementing LRU (Least Recently Used) caching in distributed systems involves several steps. First, you need to decide on a centralized or decentralized approach. Do you have a preference?

I think a decentralized approach would be better for scalability.

Great choice! In a decentralized approach, each node can maintain its own LRU cache. You can use a distributed hash table to manage cache entries across nodes. Would you like to know more about the data structures involved?

Yes, what data structures are typically used?

Commonly, a combination of a doubly linked list and a hash map is used. The hash map provides O(1) access to cache items, while the linked list maintains the order of usage. Would you like to see a code example?

Yes, that would be helpful!