Have you supported a database configuration with two active masters to ensure fault tolerance?

Yes, I supported a database configuration with two active masters (multi-master) to ensure fault tolerance and load balancing.

In such a scheme, both masters can accept writes, which increases availability but requires resolving data conflicts and synchronization issues.

An example approach:

• Using conflict-resolution replication (e.g., with Galera Cluster or other multi-master solutions).
• Configuring the application or ORM for proper operation with multiple masters.
• Monitoring the status of masters and automatic failover in case of failures.

In Python projects, this may include configuring drivers and libraries for working with multi-master databases, as well as implementing conflict resolution logic and retry mechanisms.