Apache Hadoop Ozone

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 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.

Apache Hadoop Ozone 0.3.0-alpha is released.

• A new S3 compatible rest server is added. Ozone can be used from any S3 compatible tools (docs, HDDS-434)
• Ozone Hadoop file system URL prefix is renamed from o3:// to o3fs:// (HDDS-651)
• Extensive testing and stability improvements of OzoneFs.
• Spark, YARN and Hive support and stability improvements.
• Improved Pipeline handling and recovery.
• Separated/dedicated classpath definitions for all the Ozone components. (HDDS-447)

This is an alpha release.