Tag
7 articles tagged #Redis.
P.01HyperLogLog counts millions of unique visitors in about 12 KB with roughly 0.81% error. How it works, a Python sketch, and Redis PFADD in production.
P.02CVE-2026-81934 is a use-after-free in Redis's TLS pending-data handling, with a public PoC. If you don't terminate TLS inside Redis, it mostly passes you by.
P.03Most teams default to cache-aside without asking if it's right. How cache-aside, write-through, and write-behind behave under real traffic, and how to pick.
P.04A distributed lock stops two processes on separate machines from touching the same resource at once. Here's how Redis, ZooKeeper, and fencing tokens work.
P.05Kafka isn't always the right call for event-driven systems. Choose between Kafka, Redis Streams, and BullMQ based on real throughput and durability needs.
P.06Every public API needs rate limiting, but the algorithm you choose shapes the user experience and the failure modes. Here's how each approach works and when to use it.
P.07Valkey is the BSD-licensed Redis fork backed by AWS, Google, and the Linux Foundation. Here's how it diverged from Redis and when to migrate.