Internet Backend Architecture Stack

Aug 24, 2026 · Backend Development

Sharding-JDBC Deep Dive: Scaling to 100M Orders, Fixing Shard Skew & Cross-DB Joins

This article shares real-world experience implementing database sharding with Sharding-JDBC for an e-commerce platform, covering sharding key selection, distributed ID generation, cross-database join avoidance, pagination fixes, zero-downtime migration, and shard skew remediation.