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+# Alerts
+
+## `etcdDatabaseHighFragmentationRatio`
+
+```console
+kubectl -n kube-system exec svc/kube-prometheus-stack-kube-etcd -- \
+  etcdctl defrag \
+  --cluster \
+  --cacert /etc/kubernetes/pki/etcd/ca.crt \
+  --key /etc/kubernetes/pki/etcd/server.key \
+  --cert /etc/kubernetes/pki/etcd/server.crt
+```