Backend
Replication Lag: The Hidden Cost of Read Replicas
Why read replicas introduce stale reads, how replication lag breaks consistency assumptions, and practical patterns to handle it safely.
·4 min read
Tags
PostgreSQL
16 articles · Page 1 of 2
Architecture
Multi-Region Failover: What Actually Breaks in Production
Multi-region failover looks simple on an architecture diagram — the reality is replication lag, split-brain writes and DNS caches that refuse to cooperate.
·5 min read
Backend
Soft Deletes: The Feature That Costs More Than It Saves
Soft deletes look like a simple safety net, but they silently corrupt your schema, poison your queries, and break your constraints — here's what to use instead.
·5 min read
Backend
Full-Text Search in Postgres, Without Elasticsearch
Postgres has a powerful built-in full-text search engine using tsvector, tsquery, and GIN indexes — no Elasticsearch cluster required for most applications.
·4 min read
Backend
Distributed Locks: Coordinating Work Across Multiple Nodes
Stop racing conditions in distributed systems: a practical guide to implementing distributed locks with Redis and PostgreSQL advisory locks in Node.js.
·5 min read
Architecture
The Transactional Outbox Pattern: Solving Dual-Write
How the transactional outbox pattern eliminates the dual-write problem and guarantees reliable event publishing without coupling database to broker.
·5 min read
Backend
Database Design Mistakes in Every Codebase, and Their Fixes
The recurring database design mistakes behind slow queries, painful migrations and production incidents — with practical fixes and the reasoning.
·4 min read
Backend
Database Migrations Without Downtime in Production
Run schema migrations on production databases without downtime: expand-contract, backward-compatible changes, blue-green data and safety checks.
·4 min read
Backend
Connection Pooling: Tuning for Performance Under Load
A deep dive into connection pool configuration: sizing formulas, connection lifecycle, health checking and diagnosing pool exhaustion under real traffic.
·4 min read
Backend
Connection Pooling for High-Throughput Node.js Services
A deep dive into database connection pooling for Node.js: pool sizing, health checks, failover patterns and the misconfigurations that cause outages.
·6 min read
Backend
Database Migration Strategies for Zero-Downtime Deployments
Run database schema migrations without downtime using expand-contract patterns, backward-compatible changes and phased rollouts that keep serving traffic.
·5 min read
Backend
Designing Efficient Pagination for Large Datasets
Compare offset, cursor and keyset pagination with practical implementations: performance characteristics, trade-offs and where each one fits your API.
·4 min read