hi mates, I'm trying to start etcd cluster with 5 nodes. I was working fine last week. All of a sudden, I found that etcd db size grew over 2GB then etcd cluster stopped work. So the first action was to increase the size by adding --etcd-arg into /etc/systemd/system/k3s.service.

--etcd-arg=quota-backend-bytes=6442450944

I added the above parameter in k3s.service file on the k3s host where the cluster is initialized. However, after systemctl daemon-reload, systemctl restart k3s, etcd was still reporting that there is no space. So my second action was to restore the etcd server from snapshot from last known good state. I did the restore with guidance posted on k3s.io website (HA restore).