25.6.14.3 NDB File System Encryption Limitations

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.