Top Architect

Oct 13, 2026 · Backend Development

Snowflake ID Collision in Production: Why Custom ID Generators Fail

A production incident caused by a flawed custom Snowflake ID generator with a 31-bit timestamp (24-day cycle), IP-based BusinessId collisions, and unconfigured WorkerId/DataCenterId led to duplicate order IDs; the article analyzes the root causes and recommends mature libraries like Hutool and Baomidou with proper WorkerId assignment strategies.