Exporting a big report looks trivial until it meets production scale. This post covers heap-bounded pagination, producer-side progress throttling, and a fanout broadcast trick for pushing WebSocket updates across multiple Spring Boot instances.

This article shows how a simple event-driven approach can turn a slow, fragile order flow into one that is fast, scalable, and resilient—without overengineering.

In a Warehouse Management System, a key challenge is preventing data duplication when multiple users run batch imports concurrently, especially for strictly unique identifiers like box codes.

Generating outbound reports in a Warehouse Management System can become extremely heavy—especially when dealing with thousands to tens of thousands of serial numbers or phone numbers within a single week.