ipvsadm在kubeadm集群中不显示任何条目 [英] ipvsadm not showing any entry in kubeadm cluster

问题描述

我已经安装了kubeadm并创建了服务和pod:

I have installed kubeadm and created service and pod:

packet@test:~$ kubectl get pod
NAME                                   READY     STATUS    RESTARTS   AGE
udp-server-deployment-6f87f5c9-466ft   1/1       Running   0          5m
udp-server-deployment-6f87f5c9-5j9rt   1/1       Running   0          5m
udp-server-deployment-6f87f5c9-g9wrr   1/1       Running   0          5m
udp-server-deployment-6f87f5c9-ntbkc   1/1       Running   0          5m
udp-server-deployment-6f87f5c9-xlbjq   1/1       Running   0          5m    

packet@test:~$ kubectl get service
NAME                 TYPE        CLUSTER-IP      EXTERNAL-IP   PORT(S)           AGE
kubernetes           ClusterIP   10.96.0.1       <none>        443/TCP           1h
udp-server-service   NodePort    10.102.67.0     <none>        10001:30001/UDP   6m

但是我仍然无法访问udp-server pod:

but still I am not able to access udp-server pod:

packet@test:~$ curl http://192.168.43.161:30001
curl: (7) Failed to connect to 192.168.43.161 port 30001: Connection refused 

在调试时我可以看到kube-proxy正在运行，但是IPVS中没有条目:

while debugging i could see kube-proxy is running but there is no entry in IPVS:

root@test:~# ps auxw | grep kube-proxy
root      4050  0.5  0.7  44340 29952 ?        Ssl  14:33   0:25 /usr/local/bin/kube-proxy --config=/var/lib/kube-proxy/config.conf
root      6094  0.0  0.0  14224   968 pts/1    S+   15:48   0:00 grep --color=auto kube-proxy

root@test:~# ipvsadm -ln
IP Virtual Server version 1.2.1 (size=4096)
Prot LocalAddress:Port Scheduler Flags
  -> RemoteAddress:Port           Forward Weight ActiveConn InActConn

似乎ipvsadm中没有任何条目，导致连接超时.

Seems to be there is no entry in ipvsadm causing connection time out.

Ranjith，

推荐答案

最初，我是使用虚拟框(在窗口上运行)创建VM(Linux VM)的，在那里发现了这种类型的问题.

initially I have created VM(Linux VM) using virtual box(running on window),where I found this type of issue.

现在我已经使用虚拟管理器(在Linux上运行)创建了VM(Linux VM)，在此设置中没有问题，一切正常.

Now i have created VM(Linux VM) using virtual manager(running on Linux),in this set up there is no issue and every thing works fine.

如果有人告诉您虚拟盒子有任何限制，那将是很棒的事情

It would be great if any one tell is there any restriction from virtual box?

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