# apache/ozone

Scalable, reliable, distributed storage system optimized for data analytics and object store workloads.

Repository: https://github.com/apache/ozone
Canonical: https://ross.abutalabs.com/products/ozone
Homepage: https://ozone.apache.org
Language: Java
License: Apache-2.0
License Family: permissive
Topics: hadoop, object-store, storage, big-data, s3, kubernetes
Last push: 2026-09-02T16:11:20+00:00

## Health v2 (maintenance only)
Score: 95/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 100, release rhythm 87, longevity 100
- inputs: {"age_days": 2527, "days_push": 0, "days_rel": 6, "gap_med": 42, "n_releases_24m": 6}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1271, forks 635 (observed 2026-09-03T02:15:09.211705+00:00)

## What it is
Apache Ozone is a scalable, redundant, distributed object store for Hadoop and cloud-native environments, supporting billions of objects with strong consistency via Raft. It offers S3-compatible and Hadoop FileSystem APIs, replication or erasure coding, Kerberos/Ranger security, and deploys well on Kubernetes and YARN.

## Use cases
- build a cost-effective S3-compatible object store on my own hardware
- replace HDFS for a petabyte-scale data lake
- store Iceberg table data and metadata for a lakehouse
- backend storage for Spark, Hive, Flink, or Impala workloads
- run a distributed storage cluster on Kubernetes
- store checkpoints and savepoints for Flink streaming jobs
- consolidate multiple HDFS clusters into one storage system

## When to choose
- you need S3-compatible storage at petabyte scale with strong consistency
- you are outgrowing HDFS NameNode scalability limits
- you want a lakehouse backend with atomic rename for Iceberg commits
- you need Kerberos, Ranger, ACLs, and encryption in a storage layer

## When to avoid
- you just need simple blob storage for a small app - MinIO or cloud object stores are simpler
- you need a POSIX network filesystem for general-purpose workloads
- your team has no capacity to operate a distributed Java storage cluster

## Facets
- artifact type: service
- maturity: stable
- function: object-storage, database, search-engine, security, monitoring
- domain: big-data, cloud-computing, self-hosted, analytics
- platform: jvm, self-hosted, cloud
- tags: s3-compatible, hadoop, distributed-storage, object-store, erasure-coding, raft, data-lakehouse, java, data-engineering, kubernetes, docker, linux

## Member repositories
- apache/ozone (main) score 95

## Provenance
- Observed fields: from GitHub, fetched 2026-09-03T02:15:09.211705+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 2026-08-30T05:03:50.476894+00:00, confidence not recorded.
  - readme: https://github.com/apache/ozone (fetched 2026-09-03T02:15:09.211705+00:00, sha b98a83c2793c)
  - homepage: https://ozone.apache.org (fetched 2026-08-29T12:15:54.549729+00:00, sha 58d6bc298d4f)
  - site_page: https://ozone.apache.org/docs/user-guide/integrations/iceberg (fetched 2026-08-29T12:15:54.582570+00:00, sha e47419e2c990)
  - site_page: https://ozone.apache.org/docs (fetched 2026-08-29T12:15:54.569830+00:00, sha d07be73807e5)
  - site_page: https://ozone.apache.org/docs/2.0.0 (fetched 2026-08-29T12:15:54.572607+00:00, sha 2a0b9c5c6d7a)
  - site_page: https://ozone.apache.org/docs/1.4.1 (fetched 2026-08-29T12:15:54.574601+00:00, sha a7e23f601a29)
  - site_page: https://ozone.apache.org/docs/quick-start/installation/docker (fetched 2026-08-29T12:15:54.576220+00:00, sha 4fcdee7843c1)
  - site_page: https://ozone.apache.org/docs/user-guide/integrations/hive (fetched 2026-08-29T12:15:54.578176+00:00, sha 81eb8075053f)
  - site_page: https://ozone.apache.org/docs/user-guide/integrations/flink (fetched 2026-08-29T12:15:54.580439+00:00, sha 6d065776aa24)
  - site_page: https://ozone.apache.org/docs/user-guide/integrations/impala (fetched 2026-08-29T12:15:54.584613+00:00, sha 312649869930)
- Data as of 2026-08-30T08:39:29.467469+00:00.