After kube-apiserver is started, it keeps reporting errors

General Discussions
1

Asking for help? Comment out what you need so we can get more information to help you!

Cluster information:

Kubernetes version: 1.34.1
Cloud being used:
Installation method: kubeadm
Host OS: almalinux 9.6
CNI and version: 1.7.1
CRI and version: 1.7.28

It works fine except that the following log is printed:

kube-apiserver[3050]: W0915 21:58:51.316471 3050 logging.go:55] [core] [Channel #464 SubChannel #465]grpc: addrConn.createTransport failed to connect to {Addr: “172.16.1.10:2379”, ServerName: “172.16.1.10:2379”, BalancerAttributes: {“<%!p(pickfirstleaf.managedByPickfirstKeyType={})>”: “<%!p(bool=true)>” }}. Err: connection error: desc = “transport: Error while dialing: dial tcp 172.16.1.10:2379: operation was canceled”

2

Hi,

Looks like kube-api is not able to reach etcd by some reason.

Make sure etcd is up and running before starting kube-api

3

etcd is running normally, and the k8s cluster is in normal use. Except for the kube-apiserver reporting this error, no other abnormalities were found during use.

4

Hi

Are there multiple etcd nodes, and is the error occurring on one of them? “172.16.1.10”

5

No, there is only one node.