ndb_restore — Restore an NDB Cluster Backup MySQL replication; see Replication of Columns Having Different Data Types, for information about specific type conversions currently supported by attribute demotion. ndb_restore  reports any truncation of data that it performs during lossy conversions once per attribute and column. Beginning with NDB 8.0.26, this option also makes it possible to restore a  NULL  column as  NOT NULL . The column must not contain any  NULL  entries; otherwise  ndb_restore  stops with an error. This option prevents any connected SQL nodes from writing data restored by  ndb_restore  to their binary logs. This option stops  ndb_restore  from restoring any NDB Cluster Disk Data objects, such as tablespaces and log file groups; see Section 23.5.10, “NDB Cluster Disk Data Tables” , for more information about these. When using  ndb_restore  to restore a backup,  VARCHAR  columns created using the old fixed format are resized and recreated using the variable-width format now employed. This behavior can be overridden by specifying  --no-upgrade . Set connect string for connecting to ndb_mgmd. Syntax: "[nodeid=id;][host=]hostname[:port]". Overrides entries in NDB_CONNECTSTRING and my.cnf. 4381 • --no-binlog • --no-restore-disk-objects ,  -d • --no-upgrade ,  -u • --ndb-connectstring • --ndb-mgmd-host Same as  --ndb-connectstring . Command-Line Format --ndb-mgmd-host=connection-string Type String Default Value [none] Command-Line Format --ndb-connectstring=connection-string Type String Default Value [none] Command-Line Format --no-upgrade Command-Line Format --no-restore-disk-objects Type Boolean Default Value FALSE Command-Line Format --no-binlog