K8s NodePort service is “unreachable by IP” only on 2/4 slaves in the cluster
If you want to reach the service from any node in the cluster you need fine service type as ClusterIP. Since you defined service type as NodePort, you can connect from the node where service is running.
my above answer was not correct, based on documentation we should be able to connect from any NodeIP:Nodeport. but its not working in my cluster also.
https://kubernetes.io/docs/concepts/services-networking/service/#publishing-services---service-types
NodePort: Exposes the service on each Node’s IP at a static port (the NodePort). A ClusterIP service, to which the NodePort service will route, is automatically created. You’ll be able to contact the NodePort service, from outside the cluster, by requesting :.
One of my node ip forward not set. I was able to connect my service using NodeIP:nodePort
sysctl -w net.ipv4.ip_forward=1