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Caching & Redis

Cache-aside, TTL, invalidation, hot keys, and in-memory lookup patterns at scale.

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Caching & Redis easy

Cache Warming with Python: Preload Hot Keys

Demonstrates a simple LRU-like cache with a warm method that preloads hot keys with mock values using OrderedDict.

caching ordereddict lru
Python 
import time
from collections import OrderedDict

class CacheWarm:
    def __init__(self, capacity=3):
        self.capacity = capacity
        self.cache = OrderedDict()
        self.hot_keys = []

    def warm(self, keys):
        """Preload hot keys into cache with mock values."""
        for key in keys:
          …
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