Modifying a Database Engine¶
An engine definition provides detailed information about the backing database used by a cluster; only an EDB Ark administrative user can modify an engine definition. To modify a database engine, right-click on the name of the database engine, and select Properties… from the context menu, or highlight the engine’s name and select Properties… from the Object dialog.
Use fields on the General tab to provide information about the engine:
- Use the Name field to provide a user-friendly name for the engine.
- The Engine ID field displays the unique identifier of the engine. The identifier cannot be modified after the engine definition is saved.
- The Database Type field displays the database type (PostgreSQL or Advanced Server). The database type cannot be modified after the engine definition is saved.
- The Version field displays the database server version of the engine. The version cannot be modified after the engine definition is saved.
- Use the Server type drop-down listbox to select the backing operating system that will be used by the engine.
- Set the Enabled slider to Yes to make the engine available for cluster provisioning; set the slider to No to disable the engine.
Use fields on the Software/Packages tab to provide information about the software that will be deployed on the engine:
- If applicable, use the RHEL subscription drop-down listbox to select the RHEL subscription service that will be used when provisioning clusters that use the engine.
- Use the Yum repo URL(s) field to provide the names and credentials associated with one or more yum repositories from which software will be installed.
- Use the Required packages field to provide a list of the software packages that are required by the specified server.
- Use the Optional packages field to provide a list of the additional software packages that will be installed on clusters that are provisioned using the engine.
After modifying the database engine click Save to preserve your changes.