LRU Shard

Store variant that serves the dataset from its files while keeping only a bounded number of file shards resident in memory, evicting the least recently used when the limit is reached. This bounds memory use on large datasets while keeping frequently accessed shards warm.

Configuration

Selected as name: lru-shard.

Option	Description	Type	Default
cache_size	Number of file shards kept resident in memory at once.	int	required

services:
  record:
    store:
      name: lru-shard
      kwargs:
        cache_size: 32