Apache Ozone
Summary
What it is
A scalable, distributed object storage system in the Hadoop ecosystem with an S3-compatible interface.
Where it fits
Ozone bridges the legacy Hadoop world (HDFS, YARN, MapReduce) and the modern S3-based world. It gives Hadoop-native workloads an S3 API while also supporting the Hadoop filesystem interface.
Misconceptions / Traps
- Ozone is not a drop-in HDFS replacement. It has a different consistency model and metadata architecture (SCM + OM).
- Adoption outside the Hadoop ecosystem is limited. If you don't have legacy Hadoop workloads, MinIO or AWS S3 are more practical choices.
Key Connections
implementsS3 API — S3-compatible interface for Hadoop environmentssolvesLegacy Ingestion Bottlenecks — migration path from HDFSscoped_toS3, Object Storage — part of the S3-compatible ecosystem
Definition
What it is
A scalable, distributed object storage system designed for the Hadoop ecosystem, with an S3-compatible interface.
Why it exists
Hadoop's HDFS does not scale well beyond a single namespace. Ozone provides a Hadoop-native object store that supports both the Hadoop filesystem interface and the S3 API, bridging legacy Hadoop workloads with modern S3-based architectures.
Primary use cases
S3-compatible storage for Hadoop-based data platforms, migration path from HDFS to object storage.
Relationships
Resources
Official Apache Ozone project site with documentation, downloads, and community links for this Hadoop-ecosystem S3-compatible object store.
Dedicated S3 gateway documentation for Ozone, explaining how to use the S3-compatible REST interface.
Official Apache Ozone source repository including the S3 gateway, container metadata layer, and Ratis consensus integration.