hadoop/hadoop-hdds/docs/content/_index.md

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title: Ozone Overview menu: main

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Apache Hadoop Ozone

Ozone is a scalable, distributed object store for Hadoop. Applications like Apache Spark, Hive and YARN, can run against Ozone without any modifications. Ozone comes with a [Java client library]({{< ref "JavaApi.md"

}}) and a command line interface which makes it easy to use Ozone. This client library supports both RPC and REST protocols.

Ozone consists of volumes, buckets, and Keys.

• Volumes are similar to user accounts. Only administrators can create or delete volumes.
• Buckets are similar to directories. A bucket can contain any number of keys, but buckets cannot contain other buckets.
• Keys are similar to files. A bucket can contain any number of keys.

}}">Getting started