OrientDB System Database

Introduced in 2.2, OrientDB now uses a "system database" to provide additional capabilities.

The system database, currently named OSystem, is created when the OrientDB server starts, if the database does not exist.

Features

Here's a list of some of the features that the system database may support:

• A new class of user called the system user
• A centralized location for configuration files
• Logging of per-database and global auditing events
• Recording performance metrics about the server and its databases

System Users

A third type of user now exists, called a system user. A system user is similar in concept to a server user but resides in the system database as an OUser record. See System Users.

Accessing The System Database via Studio

By default, the OrientDB system database will not be displayed in the Studio drop-down list of databases. To enable this, add a "server.listDatabases.system" resource to the "guest" server user.

Here's an example from orientdb-server-config.xml:

<user resources="connect,server.listDatabases,server.listDatabases.system" password="*****" name="guest"/>

Schema

Currently, the system database has no specialized class schema, but this will changes as more features are added that utilize the private database.