Restore etcd: confused about what to restart after an etcd restore

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Cluster information:

Kubernetes version: latest

Hi, i’ve understood the commads to backup and restore etcd, but after seeing different examples on the internet of what to stop and start, i’m a little confused.

In the docs it says you can stop the apiserver before a restore, do the restore, then restart the apiserver. Why would they make it seem optional ? Does anything else need to be restarted ?