Snapshot save then defrag etcd
Back up etcd then reclaim space; defrag clears NOSPACE alarm after compaction; do off-peak
ETCDCTL_API=3 etcdctl snapshot save /backup/snap.db && etcdctl defrag --cluster && etcdctl alarm disarm
more etcd
all 3 commands →
Check control-plane leader leases
curl -sk https://localhost:6443/healthz && kubectl -n kube-system get lease kube-scheduler kube-controller-manager
Endpoint status across cluster
ETCDCTL_API=3 etcdctl --endpoints=https://<ip>:2379 --cacert=/etc/kubernetes/pki/etcd/ca.crt --cert=/etc/kubernetes/pki/etcd/server.crt --key=/etc/kubernetes/pki/etcd/server.key endpoint status --cluster -w table