MySQL 8.3 Release Notes
Transparent data encryption in NDB Cluster is subject to the following restrictions and limitations:
The file system password must be supplied to each individual data node.
File system password rotation requires an initial rolling restart of the data nodes; this must be performed manually, or by an application external to
NDB).For a cluster with only a single replica (
NoOfReplicas = 1), a full backup and restore is required for file system password rotation.Rotation of all data encryption keys requires an initial node restart.