Java Architect Handbook
Aug 7, 2026 · Backend Development
How to Generate Global IDs After Table Sharding? Interview Guide and Solution Comparison
The article explains why sharding a table requires a global unique ID, outlines six major ID generation strategies, compares their performance, ordering, dependencies and suitable scenarios, and provides practical guidance for choosing the right solution in production environments.
ID generationMeituan LeafMySQL auto‑increment
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