What methods and tools did you use to ensure data consistency in your last project?

To ensure data consistency in projects, several approaches and tools are typically used:

• Database transactions: using ACID transactions for atomic operation execution.
• Locking mechanisms: preventing simultaneous modification of the same data.
• Replication and synchronization: setting up database replicas for data consistency between nodes.
• Using data version control systems: for example, for configurations.
• Monitoring and alerts: tracking system status and timely responding to discrepancies.
• Orchestration and automation tools: such as Ansible, Terraform for managing infrastructure and configurations.

In my last project, I used PostgreSQL transactions to ensure atomicity of operations, and also set up monitoring with Prometheus and alerts in Grafana to track replication status and data integrity.