lb/Validate Backend Service Port Configuration

Checks if health check sends probe requests to the different port than serving port.

Product: Load balancing
Step Type: AUTOMATED STEP

Description

None

Success Reason

The load balancer is performing health checks on the same port that it is using for serving traffic. This is the standard configuration.

Uncertain Reason

The load balancer is performing health checks on port {hc_port}. We detected that within some backend instance groups, this is different than the port that the load balancer is using for serving traffic. The backend service is configured to use the “{serving_port_name}” port, which is translated to a port number based on the “{serving_port_name}” port mapping within each backend instance group.

Affected backends: {formatted_igs}

This configuration can be problematic unless you have configured the load balancer to use a different port for health checks purposefully.