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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

Redis LPUSH RPOP List Queue Mock in Python

Implements a FIFO queue using Redis lists with LPUSH and RPOP commands, simulating task processing in Python.

redis queue fifo
Python 
import redis
import time

r = redis.Redis(host='localhost', port=6379, db=0)
queue_key = 'task_queue'

# Push tasks onto the left side (LPUSH)
r.lpush(queue_key, 'task1')
r.lpush(queue_key, 'task2')
r.lpush(queue_key, 'task3')

# Mock processing: pop from the right side (RPOP) — FIFO order
while r.llen(queue_key) > 0:…
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