What is the minimum number of App Connectors needed for production deployments across four data centers?

In production deployments across four data centers, having two App Connectors per data center is a best practice to ensure redundancy and load balancing. This allows for better failover capabilities, ensuring that if one App Connector fails or requires maintenance, the other can continue to handle the traffic without service interruption.

The rationale for having two App Connectors is often based on ensuring high availability and resilience in critical environments where uninterrupted service is essential. In environments with multiple data centers, this setup can accommodate potential outages and provide seamless operations.

While having one App Connector per data center or adding cold standby connectors might seem sufficient, these options do not provide the same level of redundancy and reliability as having two per data center. This approach ensures that each data center is more resilient and capable of managing unexpected issues effectively.