Correctness Has a Price: We Benchmarked Fair Leaderboards
Engineering posts often end with: The new design is correct, scalable, and fast. Fast compared with what? When we changed Podium so tied players rank …
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Redis Cluster Won't Shard Your Hot Leaderboard
"We use Redis Cluster" can mean two very different things: Our dataset is distributed across Redis nodes. Every individual data structure is distribut…
Your Redis Leaderboard Is Probably Breaking Ties Wrong
A leaderboard looks like a one-command problem: ZADD weekly 100 alice ZADD weekly 100 bob ZREVRANGE weekly 0 -1 WITHSCORES While building Podium , an …
Celery + Redis: Background Tasks Made Simple
Celery + Redis: Background Tasks Made Simple tags: python, celery, redis, tutorial tags: python, celery, redis, tutorial Celery + Redis: Background Ta…
Four Vectors, One Record: How I Split Embeddings Before They Hit Search
The failure that pushed me into this design was not subtle. I had a blended embedding that kept returning candidate matches that looked reasonable at …
RockPlayer: Building a Modern Music Player with Angular, ASP.NET Core, Redis, and YouTube
Hello everyone! After publishing my Machine Learning with ML.NET series, I decided to turn the recommendation model into a complete application. In th…
Building Resilient Real-Time Systems: WebSockets and Redis for High Availability
Originally published on tamiz.pro . Building real-time systems that can withstand failures, scale under load, and maintain consistent state is a signi…
A Small Refresh Bug That Uncovered Security Gaps in My OTP System
The Bug That Started It All It began as a small bug I found myself while testing: OTP verification kept failing whenever I refreshed the page, opened …
Caching Strategies for a SaaS
In Disaster Recovery and Backups , we made peace with the database disappearing entirely: accept it can happen, and make recovery boring and rehearsed…
Cache Invalidation Strategies with Redis
There's an old joke that there are only two hard problems in computer science: cache invalidation and naming things. The joke endures because it's tru…
Refresh-Ahead Caching with Redis
Every cache pattern so far accepts that cache misses happen: a key expires, a request misses, and someone pays the cost of reloading from the database…
Write-Behind (Write-Back) Caching with Redis
Write-through keeps the cache and database consistent by writing to both synchronously, which makes writes as slow as the database. Write-behind takes…
Read-Through and Write-Through Caching with Redis
Cache-aside puts the caching logic in your application. Read-through and write-through move it into the cache layer itself, so the application talks t…
The Cache-Aside Pattern with Redis
Cache-aside is the caching pattern you'll use most, and probably the one you already use without knowing its name. The application checks the cache fi…
Redis Key Expiration, TTL, and Eviction Policies
Redis holds everything in memory, which raises an obvious question: what stops it from filling up and falling over? The answer is two mechanisms worki…
Redis Sorted Sets and Ranked Data
If you learn one Redis structure deeply, make it the sorted set. It's a set where every member carries a numeric score, and members stay ordered by th…
Redis Data Structures: An Overview
The reason Redis solves so many problems is that it isn't one thing, it's a collection of data structures, each with commands tuned for a specific acc…
Building Resilient Real-Time Systems: WebSockets, Redis, and High Availability
Originally published on tamiz.pro . Real-time systems are foundational to modern interactive applications, from chat platforms and collaborative tools…
Building Resilient Real-Time Systems: WebSockets, Redis, and Strategies for High Availability
Originally published on tamiz.pro . Real-time systems are at the heart of modern interactive applications, from chat platforms to collaborative editin…
Scale Webhook Ingestion: Asynchronous Queue Buffers
The Webhook Storm Vulnerability When integrating with third-party enterprise platforms like Stripe, Shopify, or Twilio at Smart Tech Devs, your applic…
ЧАСТЬ 2. Своя self-hosted двухсерверная VPN-архитектура: Gitea, сборка Amnezia, проблемы 7.1.3-arch1-2 и многое другое
Эта статья является прямым продолжением вот этой статьи про мой проект ServeHub-2 , которое охватывает релиз 1.4.0 и отчасти 2.0.0, 2.1.0 (а также опр…
How I Use Redis Beyond Simple Caching: A Senior Dev's Perspective
Table of Contents 1. High-Performance Rate Limiting (Sliding Window Log) 2. Reliable Distributed Locking & Safe Release 3. A Lightweight, High-Thr…
Cron jobs and schedulers with BullMQ
In-process cron ( node-cron , @nestjs/schedule , OS crontab) runs inside one Node process. That is fine for a single instance, but it does not survive…
Enhance AI Workflows with LangGraph's HITL Feature
LangGraph: Integrating Human Oversight into AI Workflows for Regulated Industries TL;DR: LangGraph enhances AI workflows by embedding Human-in-the-Loo…
🚀 The RAM Disk Revival & In-Memory Architectures
If you ask any senior backend engineer or database administrator how to instantly make a slow, disk-bound application faster, their first answer is al…
Database Rate Limiting: The Missing Piece After a Circuit Breaker
This is an extension to my previous post on Circuit Breakers . It only decides: "Should I even try calling Redis?" When the circuit is open, your appl…
A Circuit Breaker Alone Won't Save Your Database
A common misconception is that a circuit breaker protects your database . It doesn't. It only protects your application from repeatedly calling a depe…
The Fastest Query Is the One You Never Run: The Four Layers of Rails Caching
Rails Performance: Lessons from Production — #4 The first three posts were about making queries cheaper — fewer N+1s, indexes, not dragging data back …
Redis on Windows with Laragon and Laravel: The PATH Issue That Looks Like a Redis Issue
A few days ago, I was working on a Laravel project on Windows. The project needed Redis for cache and queue handling, and since I was using Laragon, I…
Stream Postgres WAL to Redis: Real-Time Read Models with pg2redis
Real-time data pipelines are becoming a normal part of application architecture. Product pages need fresh stock counts, order status screens need fast…