Designing a Distributed Unique ID Generator — Twitter Snowflake (Java Implementation)
A 64-bit unique ID generator that doesn't collide even when many servers generate IDs at once — the design intent of Twitter Snowflake (Sign·TimeStamp·DataCenter·Server·Serial, 5 segments), a Java bit-operation implementation, and a 10,000 TPS test architecture (Nginx·Netty·MongoDB).