Practice Test Backup and Restore Methods 2: Qn 15

Kubernetes
#1

Hey guys, I seem to have some problems with this question.

Hope yall can help me out :slight_smile:

This is the error I’m getting:

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And this is the sequence of commands I have tried:

In student-node:
alias "e=etcdctl" && alias "k=kubectl" && \
export "ETCDCTL_API=3"

scp /opt/cluster2.db etcd-server:/opt/cluster2.db

In etcd-server:
e snapshot restore /opt/cluster2.db \
--data-dir=/var/lib/etcd-backup
chown -R etcd:etcd /var/lib/etcd-backup
vi /etc/systemd/system/etcd.service (to change the --data-dir)
systemctl daemon-reload
systemctl restart etcd

In student-node:

//1st attempt to check answer. Failed.
kubectl config use-context cluster2
k delete -n kube-system po kube-apiserver-cluster2-controlplane

//2nd attempt to check answer. Failed.

In custer2-controlplane:
systemctl restart kubelet.service
systemctl status kubelet.service

//3rd attempt to check answer. Still failed.
#2

Hi @enkaveen999,

You’re not restored to the right folder. You restore to folder /var/lib/etcd-backup you need to restore it to folder /var/lib/etcd-data-new

#3

Hello @mmkmou,

Hmm, I don’t think that’s the problem since I update the etcd.service unit file appropriately as shown:
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#4

Hi,

you need to restore it to /var/lib/etcd-backup-new no /var/lib/etcd-backup

#5

Hi,

May I know why the naming is a game changer here?

I assumed that one can use any name as long as it is consistent throughout.

Hope you can explain on that :slight_smile:

#6

Hi,

Because it’s asked on the task

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If you prepare the CKA, you need to take care of this kind of detail. The Exam is not difficult himself, but you need to take care of detail.

#7

Hello,

Apologies, I assumed it could be any new directory of my choice.

But now it makes sense to to use etcd-data-new as that’s the probably the only way for the system to reasonably to check if I have created the directory.

Thanks!