> # About Role Databases

> Role-based configurations use two databases to accept and implement configurations.

> - Configuration database—The running database currently enforced by the fabric.
> - Pending database—Your subsequent configuration changes are stored in the pending database. If you modify the configuration, you need to commit or discard the pending database changes to the configuration database. The fabric remains locked during this period. Changes to the pending database are not reflected in the configuration database until you commit the changes.

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