Apoorv Tyagi • 6/6/2021

Generating unique IDs in a Large scale Distributed environment

This article discusses the challenge of generating unique IDs in large-scale distributed environments, comparing UUIDs and Twitter Snowflake. It highlights the drawbacks of UUIDs (large size, poor indexing, user experience) and explains Snowflake's 64-bit ID structure (timestamp, machine ID, sequence). The author provides a simplified 32-bit version for systems needing shorter IDs, including a complete Java code example. Aimed at software engineers working on distributed systems, databases, or microservices.

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#distributed systems #Database Sharding #Unique ID Generation