Health monitor for a {@link LoadBalancingInterceptor} {@link Cluster}. Periodically checks the health of all clusters registered on the router and updates each {@link Node}'s status accordingly. When initialized, it schedules a task to call each {@link Node}'s health endpoint and marks nodes as {@link Status#UP} or {@link Status#DOWN} based on the result: If a health URL is configured for the node, it performs an HTTP request against that endpoint. Otherwise, it performs a TCP check against the node's host and port. This ensures the load balancer always has up-to-date status for routing decisions.

Example:

health monitor example