a6-recipe-health-check

Overview

Health checks monitor upstream backend nodes and automatically remove unhealthy nodes from the load balancer pool. APISIX supports two types:

• Active: APISIX periodically probes each node with HTTP/HTTPS/TCP requests
• Passive: APISIX analyzes real traffic responses to detect failures

Use both together for the most robust setup.

When to Use

• Automatically remove failing backend nodes from rotation
• Detect and recover from backend failures without manual intervention
• Ensure high availability across multiple backend instances
• Monitor backend health status via the a6 CLI