Error resolving query-frontend-0: [Errno -3] Temporary failure in name resolution

[xuguangzhao]

when I finish deployed clipper on k8s cluster. when i deploy the sum-model example

I can't telnet 7000 port , I can telnet 31223 port so I find iptables: [root@zhiyuan1 ~]# iptables -L -n Chain INPUT (policy ACCEPT) target prot opt source destination
KUBE-EXTERNAL-SERVICES all -- 0.0.0.0/0 0.0.0.0/0 ctstate NEW /* kubernetes externally-visible service portals */ KUBE-FIREWALL all -- 0.0.0.0/0 0.0.0.0/0

Chain FORWARD (policy ACCEPT) target prot opt source destination
KUBE-FORWARD all -- 0.0.0.0/0 0.0.0.0/0 /* kubernetes forwarding rules */ ACCEPT all -- 10.244.0.0/16 0.0.0.0/0
ACCEPT all -- 0.0.0.0/0 10.244.0.0/16

Chain OUTPUT (policy ACCEPT) target prot opt source destination
KUBE-SERVICES all -- 0.0.0.0/0 0.0.0.0/0 ctstate NEW /* kubernetes service portals */ KUBE-FIREWALL all -- 0.0.0.0/0 0.0.0.0/0

Chain KUBE-EXTERNAL-SERVICES (1 references) target prot opt source destination

Chain KUBE-FIREWALL (2 references) target prot opt source destination
DROP all -- 0.0.0.0/0 0.0.0.0/0 /* kubernetes firewall for dropping marked packets */ mark match 0x8000/0x8000

Chain KUBE-FORWARD (1 references) target prot opt source destination
ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 /* kubernetes forwarding rules / mark match 0x4000/0x4000 ACCEPT all -- 10.244.0.0/16 0.0.0.0/0 / kubernetes forwarding conntrack pod source rule / ctstate RELATED,ESTABLISHED ACCEPT all -- 0.0.0.0/0 10.244.0.0/16 / kubernetes forwarding conntrack pod destination rule */ ctstate RELATED,ESTABLISHED

Chain KUBE-SERVICES (1 references) target prot opt source destination
REJECT udp -- 0.0.0.0/0 10.96.0.10 /* kube-system/kube-dns:dns has no endpoints / udp dpt:53 reject-with icmp-port-unreachable REJECT tcp -- 0.0.0.0/0 10.96.0.10 / kube-system/kube-dns:dns-tcp has no endpoints */ tcp dpt:53 reject-with icmp-port-unreachable [root@zhiyuan1 ~]# kubectl get service -o wide