Glossary term
What is Snowflake ID? Meaning for developers
In System Design
64-bit ID = timestamp + machine ID + sequence. Example: Unique, time-ordered IDs generated on any server.
Learn it properly · System DesignLesson 25: Sharding: Splitting Data Across MachinesIndexes tuned, biggest server bought, replicas added — and the primary still drowns in writes. How sharding splits one dataset across machines, the four strategies, how to pick a shard key, and the hard problems it creates.In System Design Case Studies 2
A 64-bit ID made of a timestamp, a machine ID and a sequence number, so IDs are unique and roughly time-ordered.
Learn it properly · System Design Case Studies 2Lesson 6: Design a Unique ID GeneratorAuto-increment limits, UUID v4 and v7, ULID, Snowflake bit maths, clock skew and ticket servers, with a tested generator.