Redis Caching Patterns: Cache-Aside, Write-Through and the Stampede Problem
How common Redis caching patterns work, where they fail, and how to prevent cache stampedes, with runnable Python examples and reproducible simulations.
#redis
Posts tagged #redis
Caching Strategies Compared: Cache-Aside, Write-Through, and Write-Behind
How each pattern moves data between your app, cache, and database, and how to pick the right one for your read/write mix.
Rate Limiting Algorithms: How to Protect Your API Without Annoying Your Users
How fixed windows, sliding windows, token buckets and leaky buckets work, where each one breaks, and how to pick the right one for your API.
How Redis Actually Works
A tour of the single-threaded, in-memory engine behind a surprising share of the internet, and the one bet that explains almost every design choice in it.
How Username Availability Checks Answer in Milliseconds
How "username already taken" appears so fast: a canonical key, a Bloom filter, a Redis cache and a PostgreSQL unique index, built and measured.
I built my own Redis clone in Python to understand how it works
A step-by-step build of a Redis clone in about 340 lines of standard library Python, with key expiry, atomic counters, and 43 tests.
