rehanvdm/lru-cache-fallback-strategy

A Least Recently Used(LRU) cache stores items in-memory and evicts the oldest(less used) ones as soon as the allocated memory (or item count) has been reached. Storing data in-memory before reaching for an external cache increases speed and decrease the dependency on the external cache. It is also possible to fallback to in-memory caches like an LRU cache in periods that your external cache goes down without seeing a significant impact on performance.

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