ndb_restore — Restore an NDB Cluster Backup • --ndb-nodegroup-map = map ,  -z • --ndb-nodeid • --ndb-optimized-node-selection • --no-defaults • --nodeid = # ,  -n • --num-slices = # This option can be used to restore a backup taken from one node group to a different node group. Its argument is a list of the form  source_node_group ,  target_node_group . Set node ID for this node, overriding any ID set by  --ndb-connectstring . Enable optimizations for selection of nodes for transactions. Enabled by default; use  --skip-ndb- optimized-node-selection  to disable. Do not read default options from any option file other than login file. Specify the node ID of the data node on which the backup was taken. When restoring to a cluster with different number of data nodes from that where the backup was taken, this information helps identify the correct set or sets of files to be restored to a given node. (In such cases, multiple files usually need to be restored to a single data node.) See Section 23.4.23.2, “Restoring to a different number of data nodes” , for additional information and examples. In NDB 8.0.15 and later, this option is required. 4382 Command-Line Format --ndb-nodegroup-map=map Command-Line Format --ndb-nodeid=# Type Integer Default Value [none] Command-Line Format --ndb-optimized-node-selection Command-Line Format --no-defaults Command-Line Format --nodeid=# Type Numeric Default Value none Command-Line Format --num-slices=# Introduced 8.0.20-ndb-8.0.20 Type Integer Default Value 1 Minimum Value 1