# onyx-platform/onyx

Distributed, masterless, high performance, fault tolerant data processing

Repository: https://github.com/onyx-platform/onyx
Canonical: https://ross.abutalabs.com/products/onyx-platform-onyx
Homepage: http://www.onyxplatform.org
Language: Clojure
License: EPL-1.0
License Family: copyleft
Topics: clojure, distributed, streaming, batch, data
Archived: true
Last push: 2019-08-31T10:58:07+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": 4658, "days_push": 2559, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases, archived
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 2051, forks 200 (observed 2026-08-28T04:06:09.193111+00:00)

## What it is
Onyx is a masterless, fault-tolerant distributed computation system written in pure Clojure that supports both batch and stream processing through a unified workflow model. It competes with systems like Storm, Flink, and Spark for real-time event processing, ETL, and map-reduce style data transformation.

## Use cases
- process realtime event streams in a distributed cluster
- run fault-tolerant ETL pipelines
- build CQRS systems with continuous computation
- perform map-reduce style data transformations
- transfer data between storage mediums
- clean and transform large datasets

## When to choose
- you need a hybrid batch and streaming processing model on the JVM
- you want a masterless architecture without a single point of failure
- your team works in Clojure and wants workflow definitions as data

## When to avoid
- you need an actively maintained project - the latest release is from 2019
- you prefer mainstream ecosystems with large communities like Spark or Flink
- you need non-JVM language support

## Facets
- artifact type: library
- maturity: abandoned
- function: streaming, etl, data-science, workflow-automation, concurrency
- domain: big-data, microservices
- platform: jvm, jvm-scripting, cross-platform
- tags: distributed-computation, batch-processing, stream-processing, masterless, fault-tolerant, map-reduce, cqrs, clojure, data-engineering, real-time, automation

## Member repositories
- onyx-platform/onyx (main) score 10

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:06:09.193111+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 2026-08-30T02:57:33.899509+00:00, confidence not recorded.
  - readme: https://github.com/onyx-platform/onyx (fetched 2026-08-28T04:06:09.193111+00:00, sha 9c80bc869b8d)
  - homepage: http://www.onyxplatform.org (fetched 2026-08-29T10:37:44.926406+00:00, sha 14fe6109b861)
- Data as of 2026-08-30T08:39:29.467469+00:00.