ETCD in Kubernetes

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Hi Tariq, Thanks for your videos. I am following it regularly. Could you please make video on Install and Upgrade of kubernetes cluster and ETCD backup and restore? It really helps me in my CKA exam preparation. Thanks for making such a crisp and clear videos on Kubernetes.

SatyaprasadMr
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Yes please prepare video on etcd snapshot save and restore like d way its getting asked in cka exam so it helps us not to loose marks there...

ananddwivedi
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Tariq, could you please tell if there is difference between etcd ( pod in kube-system)and etcd-client(as a normal pod)

harshitamittal
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Greetings I tried running the command

For which I seem to get this error
{"level":"warn", "ts":"2022-12-08T20:31:49.066Z", "logger":"etcd-client", "caller":"v3/retry_interceptor.go:62", "msg":"retrying of unary invoker failed", "target":"etcd-endpoints://0xc000450380/172.28.244.20:2379", "attempt":0, "error":"rpc error: code = DeadlineExceeded desc = latest balancer error: last connection error: connection error: desc = \"transport: authentication handshake failed: x509: certificate is valid for 172.18.113.50, 127.0.0.1, ::1, not 172.28.244.20\""}
Error: context deadline exceeded
command terminated with exit code 1

Can you please tell me what is wrong?

Kind Regards

sraxler