# twitter-archive/snowflake

Snowflake is a network service for generating unique ID numbers at high scale with some simple guarantees.

Repository: https://github.com/twitter-archive/snowflake
Canonical: https://ross.abutalabs.com/products/snowflake
Homepage: http://twitter.com/
Language: Scala
License Family: other
Archived: true
Last push: 2020-07-22T18:08:14+00:00

## Health v2 (maintenance only)
Score: 10/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 5937, "days_push": 2233, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases, archived, no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 7766, forks 1116 (observed 2026-08-28T04:10:04.873374+00:00)

## What it is
Snowflake is Twitter's network service for generating unique 64-bit IDs at high scale with ordering guarantees. The original 2010 release is retired and no longer maintained, with a rewrite planned but never released here.

## Use cases
- generate unique IDs at high scale
- time-sortable ID generation for distributed systems
- self-hosted unique ID service
- replace database auto-increment IDs in sharded systems

## When to avoid
- you need a maintained ID generation service
- starting a new project - use an active Snowflake ID implementation instead
- you expect support or pull requests to be accepted

## Facets
- artifact type: service
- maturity: abandoned
- function: rpc, networking
- domain: databases, microservices, developer-tools
- platform: jvm
- tags: unique-ids, id-generator, scala, twitter, retired, id-generation, linux

## Member repositories
- twitter-archive/snowflake (main) score 10

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:10:04.873374+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T17:35:05.556317+00:00, confidence not recorded.
  - readme: https://github.com/twitter-archive/snowflake (fetched 2026-08-28T04:10:04.873374+00:00, sha f3bfc54bbb54)
- Data as of 2026-08-30T08:39:29.467469+00:00.