Redis — The In-Memory Data-Structure Store, End to End
Redis is one of the most-used pieces of infrastructure in the world — the fast…
Tag
#redis
22 posts
Operating Redis & Pitfalls
Redis is fast and simple, but its very design — single-threaded, in-memory…
Redis Cluster & Scaling
Replicas and Sentinel (Lesson 8) give you high availability, but every write…
Distributed Locks & Coordination
Redis’s single-threaded core (Lesson 1) has a powerful side effect: because only…
Advanced Patterns
By now the pattern of Redis should be clear: its real power is that common…
Replication & High Availability
Persistence (Lesson 7) lets Redis survive a restart, but not a server failure…
Caching Patterns
Caching is why most teams adopt Redis: put a fast in-memory layer in front of a…
Pub/Sub & Streams
Redis isn’t only a store — it can move messages between parts of your system…
Pipelining & Transactions
A single Redis instance does ~100,000 operations per second (Lesson 1) — but…
Persistence & Durability
Redis keeps everything in RAM, which raises an obvious worry: what happens when…
The Data Structures
Lesson 1 said Redis’s superpower is that it stores data structures, not opaque…
What Is Redis & Why
Redis is everywhere, and usually described in one word: “cache.” That’s true but…
Keys, Expiry & Memory
Redis’s speed comes from living in RAM — and that same fact makes memory the…
Architecture & Order Management
Now we assemble the whole thing. A serious retail algo isn’t one script — it’s a…
Distributed Systems in Practice — Failures, Time, Consensus and Correctness
Every backend engineer today builds distributed systems, whether they call it…
Distributed Locks, Leases and Fencing Tokens
Let me go back to the story from Lesson 6: a scheduler that ran on several pods…
In the Wild: Slack's Job Queue
Most of what a Slack message triggers does not happen in the request that sent…
Key Technologies: Pick the Right Tool
“I’ll use Kafka” is not an answer. “This needs a durable, replayable log to…
Design a Distributed Cache
Every high-traffic system hits the same wall: the database cannot handle the…
Redis — Caching, Sessions, Pub/Sub
Redis is an in-memory data structure store that serves as a cache, message…
Redis — Caching, Sessions, Pub/Sub in Node.js
Why Redis for Node.js Redis is an in-memory data store that serves as a cache…
Scaling Reads — Caching, Replicas & CDN
Most real-world systems are read-heavy. Twitter serves 600K reads per second but…