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I am trying to install and run Kubernetes on my Ubuntu 22.04LTS machine. I followed the installation here but I get the following errors when I try kubectl get pods or kubectl get nodes for example:

 E1210 10:35:25.649853 16219 memcache.go:238] couldn't get current server API group list: Get "https://192.168.1.2:6443/api?timeout=32s": dial tcp 192.168.1.2:6443: connect: connection refused E1210 10:35:25.650138 16219 memcache.go:238] couldn't get current server API group list: Get "https://192.168.1.2:6443/api?timeout=32s": dial tcp 192.168.1.2:6443: connect: connection refused E1210 10:35:25.651789 16219 memcache.go:238] couldn't get current server API group list: Get "https://192.168.1.2:6443/api?timeout=32s": dial tcp 192.168.1.2:6443: connect: connection refused E1210 10:35:25.653224 16219 memcache.go:238] couldn't get current server API group list: Get "https://192.168.1.2:6443/api?timeout=32s": dial tcp 192.168.1.2:6443: connect: connection refused E1210 10:35:25.654932 16219 memcache.go:238] couldn't get current server API group list: Get "https://192.168.1.2:6443/api?timeout=32s": dial tcp 192.168.1.2:6443: connect: connection refused The connection to the server 192.168.1.2:6443 was refused - did you specify the right host or port? 

I searched through the internet and tried many solutions but none of them worked for me!

result for kubectl config view:

 apiVersion: v1 clusters: - cluster: certificate-authority-data: DATA+OMITTED server: https://192.168.1.2:6443 name: kubernetes contexts: - context: cluster: kubernetes user: kubernetes-admin name: kubernetes-admin@kubernetes current-context: kubernetes-admin@kubernetes kind: Config preferences: {} users: - name: kubernetes-admin user: client-certificate-data: DATA+OMITTED client-key-data: DATA+OMITTED 

The /etc/containerd/config.toml file content:

# Copyright 2018-2022 Docker Inc. # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. # You may obtain a copy of the License at # http://www.apache.org/licenses/LICENSE-2.0 # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # See the License for the specific language governing permissions and # limitations under the License. #disabled_plugins = ["cri"] #root = "/var/lib/containerd" #state = "/run/containerd" #subreaper = true #oom_score = 0 #[grpc] # address = "/run/containerd/containerd.sock" # uid = 0 # gid = 0 #[debug] # address = "/run/containerd/debug.sock" # uid = 0 # gid = 0 # level = "info" [plugins] [plugins."io.containerd.grpc.v1.cri".containerd.runtimes.runc] [plugins."io.containerd.grpc.v1.cri".containerd.runtimes.runc.options] SystemdCgroup = true [plugins."io.containerd.grpc.v1.cri"] sandbox_image = "registry.k8s.io/pause:3.2" 

Contents for sudo nano $HOME/.kube/config:

 GNU nano 6.2 /home/a/.kube/config apiVersion: v1 clusters: - cluster: certificate-authority-data: LS0tLS1CRUdJTiBDRVJUSUZJQ0FURS0tLS0tCk1JSUMvakN> server: https://192.168.1.2:6443 name: kubernetes contexts: - context: cluster: kubernetes user: kubernetes-admin name: kubernetes-admin@kubernetes current-context: kubernetes-admin@kubernetes kind: Config preferences: {} users: - name: kubernetes-admin user: client-certificate-data: LS0tLS1CRUdJTiBDRVJUSUZJQ0FURS0tLS0tCk1JSURJVENDQW> client-key-data: LS0tLS1CRUdJTiBSU0EgUFJJVkFURSBLRVktLS0tLQpNSUlFb2dJQkFBS0> 

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I had the same issue on Ubuntu 22.04. When I checked the /var/log/syslog I found it out, that somehow the swapiness got reenabled.

What I did is I edited the /etc/fstab file and removed the line, which contains the swap.img line, after this I rebooted the server and everything went back to normal

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