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Version: 0.6.1-incubating

Apache Gravitino overview

What's Apache Gravitino?​

Apache Gravitino is a high-performance, geo-distributed, and federated metadata lake. It manages the metadata directly in different sources, types, and regions. It also provides users with unified metadata access for data and AI assets.

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Downloading​

You can get Gravitino from the download page, or you can build Gravitino from source code. See How to build Gravitino.

Gravitino runs on both Linux and macOS platforms, and it requires the installation of Java 8, Java 11, or Java 17. Gravitino trino-connector runs with Trino, and requires Java 17. This should include JVMs on x86_64 and ARM64. It's easy to run locally on one machine, all you need is to have java installed on your system PATH, or the JAVA_HOME environment variable pointing to a Java installation.

See How to install Gravitino to learn how to install the Gravitino server.

Gravitino provides Docker images on Docker Hub. Pull the image and run it. For details of the Gravitino Docker image, see Docker image details.

Gravitino also provides a playground to experience the whole Gravitino system with other components. See the Gravitino playground repository and How to use the playground.

Getting started​

To get started with Gravitino, see Getting started for the details.

How to use Apache Gravitino​

Gravitino provides two SDKs to manage metadata from different catalogs in a unified way: the REST API and the Java SDK. You can use either to manage metadata. See

Also, you can find the complete REST API definition in Gravitino Open API, Java SDK definition in Gravitino Java doc.

Gravitino provides a web UI to manage the metadata. Visit the web UI in the browser via http://<ip-address>:8090. See Gravitino web UI for details.

Gravitino currently supports the following catalogs:

Relational catalogs:

Fileset catalogs:

Messaging catalogs:

Apache Gravitino playground​

To experience Gravitino with other components easily, Gravitino provides a playground to run. It integrates Apache Hadoop, Apache Hive, Trino, MySQL, PostgreSQL, and Gravitino together as a complete environment. To experience all the features, see Getting started and How to use the Gravitino playground.

Where to go from here​

Catalogs​

Gravitino supports different catalogs to manage the metadata in different sources. Please see:

  • Iceberg catalog: a complete guide to using Gravitino to manage Apache Iceberg data.
  • Paimon catalog: a complete guide to using Gravitino to manage Apache Paimon data.
  • Hive catalog: a complete guide to using Gravitino to manage Apache Hive data.
  • MySQL catalog: a complete guide to using Gravitino to manage MySQL data.
  • PostgreSQL catalog: a complete guide to using Gravitino to manage PostgreSQL data.
  • Doris catalog: a complete guide to using Gravitino to manage Doris data.
  • Hadoop catalog: a complete guide to using Gravitino to manage fileset using Hadoop Compatible File System (HCFS).
  • Kafka catalog: a complete guide to using Gravitino to manage Kafka topics metadata.

Governance​

Gravitino provides governance features to manage metadata in a unified way. See:

Gravitino Iceberg REST catalog service​

Connectors​

Trino connector​

Gravitino provides a Trino connector to manage Trino metadata in a unified way. To use the Trino connector, see:

Spark connector​

Gravitino provides a Spark connector to manage metadata in a unified way. To use the Spark connector, see:

Gravitino provides a Flink connector to manage metadata in a unified way. To use the Flink connector, see:

Server administration​

Gravitino provides several ways to configure and manage the Gravitino server. See:

  • Gravitino metrics: provides metrics configurations and detailed a metrics list of the Gravitino server.

Security​

Gravitino provides security configurations for Gravitino, including HTTPS, authentication and access control configurations.

  • HTTPS: provides HTTPS configurations.
  • Authentication: provides authentication configurations including simple, OAuth, Kerberos.
  • Access Control: provides access control configurations.
  • CORS: provides CORS configurations.

Programming guides​

Development guides​